File: | tools/clang/lib/Sema/SemaExprCXX.cpp |
Warning: | line 8424, column 5 Called C++ object pointer is null |
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1 | //===--- SemaExprCXX.cpp - Semantic Analysis for Expressions --------------===// | |||
2 | // | |||
3 | // The LLVM Compiler Infrastructure | |||
4 | // | |||
5 | // This file is distributed under the University of Illinois Open Source | |||
6 | // License. See LICENSE.TXT for details. | |||
7 | // | |||
8 | //===----------------------------------------------------------------------===// | |||
9 | /// | |||
10 | /// \file | |||
11 | /// \brief Implements semantic analysis for C++ expressions. | |||
12 | /// | |||
13 | //===----------------------------------------------------------------------===// | |||
14 | ||||
15 | #include "clang/Sema/SemaInternal.h" | |||
16 | #include "TreeTransform.h" | |||
17 | #include "TypeLocBuilder.h" | |||
18 | #include "clang/AST/ASTContext.h" | |||
19 | #include "clang/AST/ASTLambda.h" | |||
20 | #include "clang/AST/CXXInheritance.h" | |||
21 | #include "clang/AST/CharUnits.h" | |||
22 | #include "clang/AST/DeclObjC.h" | |||
23 | #include "clang/AST/ExprCXX.h" | |||
24 | #include "clang/AST/ExprObjC.h" | |||
25 | #include "clang/AST/RecursiveASTVisitor.h" | |||
26 | #include "clang/AST/TypeLoc.h" | |||
27 | #include "clang/Basic/AlignedAllocation.h" | |||
28 | #include "clang/Basic/PartialDiagnostic.h" | |||
29 | #include "clang/Basic/TargetInfo.h" | |||
30 | #include "clang/Lex/Preprocessor.h" | |||
31 | #include "clang/Sema/DeclSpec.h" | |||
32 | #include "clang/Sema/Initialization.h" | |||
33 | #include "clang/Sema/Lookup.h" | |||
34 | #include "clang/Sema/ParsedTemplate.h" | |||
35 | #include "clang/Sema/Scope.h" | |||
36 | #include "clang/Sema/ScopeInfo.h" | |||
37 | #include "clang/Sema/SemaLambda.h" | |||
38 | #include "clang/Sema/TemplateDeduction.h" | |||
39 | #include "llvm/ADT/APInt.h" | |||
40 | #include "llvm/ADT/STLExtras.h" | |||
41 | #include "llvm/Support/ErrorHandling.h" | |||
42 | using namespace clang; | |||
43 | using namespace sema; | |||
44 | ||||
45 | /// \brief Handle the result of the special case name lookup for inheriting | |||
46 | /// constructor declarations. 'NS::X::X' and 'NS::X<...>::X' are treated as | |||
47 | /// constructor names in member using declarations, even if 'X' is not the | |||
48 | /// name of the corresponding type. | |||
49 | ParsedType Sema::getInheritingConstructorName(CXXScopeSpec &SS, | |||
50 | SourceLocation NameLoc, | |||
51 | IdentifierInfo &Name) { | |||
52 | NestedNameSpecifier *NNS = SS.getScopeRep(); | |||
53 | ||||
54 | // Convert the nested-name-specifier into a type. | |||
55 | QualType Type; | |||
56 | switch (NNS->getKind()) { | |||
57 | case NestedNameSpecifier::TypeSpec: | |||
58 | case NestedNameSpecifier::TypeSpecWithTemplate: | |||
59 | Type = QualType(NNS->getAsType(), 0); | |||
60 | break; | |||
61 | ||||
62 | case NestedNameSpecifier::Identifier: | |||
63 | // Strip off the last layer of the nested-name-specifier and build a | |||
64 | // typename type for it. | |||
65 | assert(NNS->getAsIdentifier() == &Name && "not a constructor name")(static_cast <bool> (NNS->getAsIdentifier() == & Name && "not a constructor name") ? void (0) : __assert_fail ("NNS->getAsIdentifier() == &Name && \"not a constructor name\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 65, __extension__ __PRETTY_FUNCTION__)); | |||
66 | Type = Context.getDependentNameType(ETK_None, NNS->getPrefix(), | |||
67 | NNS->getAsIdentifier()); | |||
68 | break; | |||
69 | ||||
70 | case NestedNameSpecifier::Global: | |||
71 | case NestedNameSpecifier::Super: | |||
72 | case NestedNameSpecifier::Namespace: | |||
73 | case NestedNameSpecifier::NamespaceAlias: | |||
74 | llvm_unreachable("Nested name specifier is not a type for inheriting ctor")::llvm::llvm_unreachable_internal("Nested name specifier is not a type for inheriting ctor" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 74); | |||
75 | } | |||
76 | ||||
77 | // This reference to the type is located entirely at the location of the | |||
78 | // final identifier in the qualified-id. | |||
79 | return CreateParsedType(Type, | |||
80 | Context.getTrivialTypeSourceInfo(Type, NameLoc)); | |||
81 | } | |||
82 | ||||
83 | ParsedType Sema::getDestructorName(SourceLocation TildeLoc, | |||
84 | IdentifierInfo &II, | |||
85 | SourceLocation NameLoc, | |||
86 | Scope *S, CXXScopeSpec &SS, | |||
87 | ParsedType ObjectTypePtr, | |||
88 | bool EnteringContext) { | |||
89 | // Determine where to perform name lookup. | |||
90 | ||||
91 | // FIXME: This area of the standard is very messy, and the current | |||
92 | // wording is rather unclear about which scopes we search for the | |||
93 | // destructor name; see core issues 399 and 555. Issue 399 in | |||
94 | // particular shows where the current description of destructor name | |||
95 | // lookup is completely out of line with existing practice, e.g., | |||
96 | // this appears to be ill-formed: | |||
97 | // | |||
98 | // namespace N { | |||
99 | // template <typename T> struct S { | |||
100 | // ~S(); | |||
101 | // }; | |||
102 | // } | |||
103 | // | |||
104 | // void f(N::S<int>* s) { | |||
105 | // s->N::S<int>::~S(); | |||
106 | // } | |||
107 | // | |||
108 | // See also PR6358 and PR6359. | |||
109 | // For this reason, we're currently only doing the C++03 version of this | |||
110 | // code; the C++0x version has to wait until we get a proper spec. | |||
111 | QualType SearchType; | |||
112 | DeclContext *LookupCtx = nullptr; | |||
113 | bool isDependent = false; | |||
114 | bool LookInScope = false; | |||
115 | ||||
116 | if (SS.isInvalid()) | |||
117 | return nullptr; | |||
118 | ||||
119 | // If we have an object type, it's because we are in a | |||
120 | // pseudo-destructor-expression or a member access expression, and | |||
121 | // we know what type we're looking for. | |||
122 | if (ObjectTypePtr) | |||
123 | SearchType = GetTypeFromParser(ObjectTypePtr); | |||
124 | ||||
125 | if (SS.isSet()) { | |||
126 | NestedNameSpecifier *NNS = SS.getScopeRep(); | |||
127 | ||||
128 | bool AlreadySearched = false; | |||
129 | bool LookAtPrefix = true; | |||
130 | // C++11 [basic.lookup.qual]p6: | |||
131 | // If a pseudo-destructor-name (5.2.4) contains a nested-name-specifier, | |||
132 | // the type-names are looked up as types in the scope designated by the | |||
133 | // nested-name-specifier. Similarly, in a qualified-id of the form: | |||
134 | // | |||
135 | // nested-name-specifier[opt] class-name :: ~ class-name | |||
136 | // | |||
137 | // the second class-name is looked up in the same scope as the first. | |||
138 | // | |||
139 | // Here, we determine whether the code below is permitted to look at the | |||
140 | // prefix of the nested-name-specifier. | |||
141 | DeclContext *DC = computeDeclContext(SS, EnteringContext); | |||
142 | if (DC && DC->isFileContext()) { | |||
143 | AlreadySearched = true; | |||
144 | LookupCtx = DC; | |||
145 | isDependent = false; | |||
146 | } else if (DC && isa<CXXRecordDecl>(DC)) { | |||
147 | LookAtPrefix = false; | |||
148 | LookInScope = true; | |||
149 | } | |||
150 | ||||
151 | // The second case from the C++03 rules quoted further above. | |||
152 | NestedNameSpecifier *Prefix = nullptr; | |||
153 | if (AlreadySearched) { | |||
154 | // Nothing left to do. | |||
155 | } else if (LookAtPrefix && (Prefix = NNS->getPrefix())) { | |||
156 | CXXScopeSpec PrefixSS; | |||
157 | PrefixSS.Adopt(NestedNameSpecifierLoc(Prefix, SS.location_data())); | |||
158 | LookupCtx = computeDeclContext(PrefixSS, EnteringContext); | |||
159 | isDependent = isDependentScopeSpecifier(PrefixSS); | |||
160 | } else if (ObjectTypePtr) { | |||
161 | LookupCtx = computeDeclContext(SearchType); | |||
162 | isDependent = SearchType->isDependentType(); | |||
163 | } else { | |||
164 | LookupCtx = computeDeclContext(SS, EnteringContext); | |||
165 | isDependent = LookupCtx && LookupCtx->isDependentContext(); | |||
166 | } | |||
167 | } else if (ObjectTypePtr) { | |||
168 | // C++ [basic.lookup.classref]p3: | |||
169 | // If the unqualified-id is ~type-name, the type-name is looked up | |||
170 | // in the context of the entire postfix-expression. If the type T | |||
171 | // of the object expression is of a class type C, the type-name is | |||
172 | // also looked up in the scope of class C. At least one of the | |||
173 | // lookups shall find a name that refers to (possibly | |||
174 | // cv-qualified) T. | |||
175 | LookupCtx = computeDeclContext(SearchType); | |||
176 | isDependent = SearchType->isDependentType(); | |||
177 | assert((isDependent || !SearchType->isIncompleteType()) &&(static_cast <bool> ((isDependent || !SearchType->isIncompleteType ()) && "Caller should have completed object type") ? void (0) : __assert_fail ("(isDependent || !SearchType->isIncompleteType()) && \"Caller should have completed object type\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 178, __extension__ __PRETTY_FUNCTION__)) | |||
178 | "Caller should have completed object type")(static_cast <bool> ((isDependent || !SearchType->isIncompleteType ()) && "Caller should have completed object type") ? void (0) : __assert_fail ("(isDependent || !SearchType->isIncompleteType()) && \"Caller should have completed object type\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 178, __extension__ __PRETTY_FUNCTION__)); | |||
179 | ||||
180 | LookInScope = true; | |||
181 | } else { | |||
182 | // Perform lookup into the current scope (only). | |||
183 | LookInScope = true; | |||
184 | } | |||
185 | ||||
186 | TypeDecl *NonMatchingTypeDecl = nullptr; | |||
187 | LookupResult Found(*this, &II, NameLoc, LookupOrdinaryName); | |||
188 | for (unsigned Step = 0; Step != 2; ++Step) { | |||
189 | // Look for the name first in the computed lookup context (if we | |||
190 | // have one) and, if that fails to find a match, in the scope (if | |||
191 | // we're allowed to look there). | |||
192 | Found.clear(); | |||
193 | if (Step == 0 && LookupCtx) { | |||
194 | if (RequireCompleteDeclContext(SS, LookupCtx)) | |||
195 | return nullptr; | |||
196 | LookupQualifiedName(Found, LookupCtx); | |||
197 | } else if (Step == 1 && LookInScope && S) { | |||
198 | LookupName(Found, S); | |||
199 | } else { | |||
200 | continue; | |||
201 | } | |||
202 | ||||
203 | // FIXME: Should we be suppressing ambiguities here? | |||
204 | if (Found.isAmbiguous()) | |||
205 | return nullptr; | |||
206 | ||||
207 | if (TypeDecl *Type = Found.getAsSingle<TypeDecl>()) { | |||
208 | QualType T = Context.getTypeDeclType(Type); | |||
209 | MarkAnyDeclReferenced(Type->getLocation(), Type, /*OdrUse=*/false); | |||
210 | ||||
211 | if (SearchType.isNull() || SearchType->isDependentType() || | |||
212 | Context.hasSameUnqualifiedType(T, SearchType)) { | |||
213 | // We found our type! | |||
214 | ||||
215 | return CreateParsedType(T, | |||
216 | Context.getTrivialTypeSourceInfo(T, NameLoc)); | |||
217 | } | |||
218 | ||||
219 | if (!SearchType.isNull()) | |||
220 | NonMatchingTypeDecl = Type; | |||
221 | } | |||
222 | ||||
223 | // If the name that we found is a class template name, and it is | |||
224 | // the same name as the template name in the last part of the | |||
225 | // nested-name-specifier (if present) or the object type, then | |||
226 | // this is the destructor for that class. | |||
227 | // FIXME: This is a workaround until we get real drafting for core | |||
228 | // issue 399, for which there isn't even an obvious direction. | |||
229 | if (ClassTemplateDecl *Template = Found.getAsSingle<ClassTemplateDecl>()) { | |||
230 | QualType MemberOfType; | |||
231 | if (SS.isSet()) { | |||
232 | if (DeclContext *Ctx = computeDeclContext(SS, EnteringContext)) { | |||
233 | // Figure out the type of the context, if it has one. | |||
234 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Ctx)) | |||
235 | MemberOfType = Context.getTypeDeclType(Record); | |||
236 | } | |||
237 | } | |||
238 | if (MemberOfType.isNull()) | |||
239 | MemberOfType = SearchType; | |||
240 | ||||
241 | if (MemberOfType.isNull()) | |||
242 | continue; | |||
243 | ||||
244 | // We're referring into a class template specialization. If the | |||
245 | // class template we found is the same as the template being | |||
246 | // specialized, we found what we are looking for. | |||
247 | if (const RecordType *Record = MemberOfType->getAs<RecordType>()) { | |||
248 | if (ClassTemplateSpecializationDecl *Spec | |||
249 | = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { | |||
250 | if (Spec->getSpecializedTemplate()->getCanonicalDecl() == | |||
251 | Template->getCanonicalDecl()) | |||
252 | return CreateParsedType( | |||
253 | MemberOfType, | |||
254 | Context.getTrivialTypeSourceInfo(MemberOfType, NameLoc)); | |||
255 | } | |||
256 | ||||
257 | continue; | |||
258 | } | |||
259 | ||||
260 | // We're referring to an unresolved class template | |||
261 | // specialization. Determine whether we class template we found | |||
262 | // is the same as the template being specialized or, if we don't | |||
263 | // know which template is being specialized, that it at least | |||
264 | // has the same name. | |||
265 | if (const TemplateSpecializationType *SpecType | |||
266 | = MemberOfType->getAs<TemplateSpecializationType>()) { | |||
267 | TemplateName SpecName = SpecType->getTemplateName(); | |||
268 | ||||
269 | // The class template we found is the same template being | |||
270 | // specialized. | |||
271 | if (TemplateDecl *SpecTemplate = SpecName.getAsTemplateDecl()) { | |||
272 | if (SpecTemplate->getCanonicalDecl() == Template->getCanonicalDecl()) | |||
273 | return CreateParsedType( | |||
274 | MemberOfType, | |||
275 | Context.getTrivialTypeSourceInfo(MemberOfType, NameLoc)); | |||
276 | ||||
277 | continue; | |||
278 | } | |||
279 | ||||
280 | // The class template we found has the same name as the | |||
281 | // (dependent) template name being specialized. | |||
282 | if (DependentTemplateName *DepTemplate | |||
283 | = SpecName.getAsDependentTemplateName()) { | |||
284 | if (DepTemplate->isIdentifier() && | |||
285 | DepTemplate->getIdentifier() == Template->getIdentifier()) | |||
286 | return CreateParsedType( | |||
287 | MemberOfType, | |||
288 | Context.getTrivialTypeSourceInfo(MemberOfType, NameLoc)); | |||
289 | ||||
290 | continue; | |||
291 | } | |||
292 | } | |||
293 | } | |||
294 | } | |||
295 | ||||
296 | if (isDependent) { | |||
297 | // We didn't find our type, but that's okay: it's dependent | |||
298 | // anyway. | |||
299 | ||||
300 | // FIXME: What if we have no nested-name-specifier? | |||
301 | QualType T = CheckTypenameType(ETK_None, SourceLocation(), | |||
302 | SS.getWithLocInContext(Context), | |||
303 | II, NameLoc); | |||
304 | return ParsedType::make(T); | |||
305 | } | |||
306 | ||||
307 | if (NonMatchingTypeDecl) { | |||
308 | QualType T = Context.getTypeDeclType(NonMatchingTypeDecl); | |||
309 | Diag(NameLoc, diag::err_destructor_expr_type_mismatch) | |||
310 | << T << SearchType; | |||
311 | Diag(NonMatchingTypeDecl->getLocation(), diag::note_destructor_type_here) | |||
312 | << T; | |||
313 | } else if (ObjectTypePtr) | |||
314 | Diag(NameLoc, diag::err_ident_in_dtor_not_a_type) | |||
315 | << &II; | |||
316 | else { | |||
317 | SemaDiagnosticBuilder DtorDiag = Diag(NameLoc, | |||
318 | diag::err_destructor_class_name); | |||
319 | if (S) { | |||
320 | const DeclContext *Ctx = S->getEntity(); | |||
321 | if (const CXXRecordDecl *Class = dyn_cast_or_null<CXXRecordDecl>(Ctx)) | |||
322 | DtorDiag << FixItHint::CreateReplacement(SourceRange(NameLoc), | |||
323 | Class->getNameAsString()); | |||
324 | } | |||
325 | } | |||
326 | ||||
327 | return nullptr; | |||
328 | } | |||
329 | ||||
330 | ParsedType Sema::getDestructorTypeForDecltype(const DeclSpec &DS, | |||
331 | ParsedType ObjectType) { | |||
332 | if (DS.getTypeSpecType() == DeclSpec::TST_error) | |||
333 | return nullptr; | |||
334 | ||||
335 | if (DS.getTypeSpecType() == DeclSpec::TST_decltype_auto) { | |||
336 | Diag(DS.getTypeSpecTypeLoc(), diag::err_decltype_auto_invalid); | |||
337 | return nullptr; | |||
338 | } | |||
339 | ||||
340 | assert(DS.getTypeSpecType() == DeclSpec::TST_decltype &&(static_cast <bool> (DS.getTypeSpecType() == DeclSpec:: TST_decltype && "unexpected type in getDestructorType" ) ? void (0) : __assert_fail ("DS.getTypeSpecType() == DeclSpec::TST_decltype && \"unexpected type in getDestructorType\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 341, __extension__ __PRETTY_FUNCTION__)) | |||
341 | "unexpected type in getDestructorType")(static_cast <bool> (DS.getTypeSpecType() == DeclSpec:: TST_decltype && "unexpected type in getDestructorType" ) ? void (0) : __assert_fail ("DS.getTypeSpecType() == DeclSpec::TST_decltype && \"unexpected type in getDestructorType\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 341, __extension__ __PRETTY_FUNCTION__)); | |||
342 | QualType T = BuildDecltypeType(DS.getRepAsExpr(), DS.getTypeSpecTypeLoc()); | |||
343 | ||||
344 | // If we know the type of the object, check that the correct destructor | |||
345 | // type was named now; we can give better diagnostics this way. | |||
346 | QualType SearchType = GetTypeFromParser(ObjectType); | |||
347 | if (!SearchType.isNull() && !SearchType->isDependentType() && | |||
348 | !Context.hasSameUnqualifiedType(T, SearchType)) { | |||
349 | Diag(DS.getTypeSpecTypeLoc(), diag::err_destructor_expr_type_mismatch) | |||
350 | << T << SearchType; | |||
351 | return nullptr; | |||
352 | } | |||
353 | ||||
354 | return ParsedType::make(T); | |||
355 | } | |||
356 | ||||
357 | bool Sema::checkLiteralOperatorId(const CXXScopeSpec &SS, | |||
358 | const UnqualifiedId &Name) { | |||
359 | assert(Name.getKind() == UnqualifiedIdKind::IK_LiteralOperatorId)(static_cast <bool> (Name.getKind() == UnqualifiedIdKind ::IK_LiteralOperatorId) ? void (0) : __assert_fail ("Name.getKind() == UnqualifiedIdKind::IK_LiteralOperatorId" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 359, __extension__ __PRETTY_FUNCTION__)); | |||
360 | ||||
361 | if (!SS.isValid()) | |||
362 | return false; | |||
363 | ||||
364 | switch (SS.getScopeRep()->getKind()) { | |||
365 | case NestedNameSpecifier::Identifier: | |||
366 | case NestedNameSpecifier::TypeSpec: | |||
367 | case NestedNameSpecifier::TypeSpecWithTemplate: | |||
368 | // Per C++11 [over.literal]p2, literal operators can only be declared at | |||
369 | // namespace scope. Therefore, this unqualified-id cannot name anything. | |||
370 | // Reject it early, because we have no AST representation for this in the | |||
371 | // case where the scope is dependent. | |||
372 | Diag(Name.getLocStart(), diag::err_literal_operator_id_outside_namespace) | |||
373 | << SS.getScopeRep(); | |||
374 | return true; | |||
375 | ||||
376 | case NestedNameSpecifier::Global: | |||
377 | case NestedNameSpecifier::Super: | |||
378 | case NestedNameSpecifier::Namespace: | |||
379 | case NestedNameSpecifier::NamespaceAlias: | |||
380 | return false; | |||
381 | } | |||
382 | ||||
383 | llvm_unreachable("unknown nested name specifier kind")::llvm::llvm_unreachable_internal("unknown nested name specifier kind" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 383); | |||
384 | } | |||
385 | ||||
386 | /// \brief Build a C++ typeid expression with a type operand. | |||
387 | ExprResult Sema::BuildCXXTypeId(QualType TypeInfoType, | |||
388 | SourceLocation TypeidLoc, | |||
389 | TypeSourceInfo *Operand, | |||
390 | SourceLocation RParenLoc) { | |||
391 | // C++ [expr.typeid]p4: | |||
392 | // The top-level cv-qualifiers of the lvalue expression or the type-id | |||
393 | // that is the operand of typeid are always ignored. | |||
394 | // If the type of the type-id is a class type or a reference to a class | |||
395 | // type, the class shall be completely-defined. | |||
396 | Qualifiers Quals; | |||
397 | QualType T | |||
398 | = Context.getUnqualifiedArrayType(Operand->getType().getNonReferenceType(), | |||
399 | Quals); | |||
400 | if (T->getAs<RecordType>() && | |||
401 | RequireCompleteType(TypeidLoc, T, diag::err_incomplete_typeid)) | |||
402 | return ExprError(); | |||
403 | ||||
404 | if (T->isVariablyModifiedType()) | |||
405 | return ExprError(Diag(TypeidLoc, diag::err_variably_modified_typeid) << T); | |||
406 | ||||
407 | return new (Context) CXXTypeidExpr(TypeInfoType.withConst(), Operand, | |||
408 | SourceRange(TypeidLoc, RParenLoc)); | |||
409 | } | |||
410 | ||||
411 | /// \brief Build a C++ typeid expression with an expression operand. | |||
412 | ExprResult Sema::BuildCXXTypeId(QualType TypeInfoType, | |||
413 | SourceLocation TypeidLoc, | |||
414 | Expr *E, | |||
415 | SourceLocation RParenLoc) { | |||
416 | bool WasEvaluated = false; | |||
417 | if (E && !E->isTypeDependent()) { | |||
418 | if (E->getType()->isPlaceholderType()) { | |||
419 | ExprResult result = CheckPlaceholderExpr(E); | |||
420 | if (result.isInvalid()) return ExprError(); | |||
421 | E = result.get(); | |||
422 | } | |||
423 | ||||
424 | QualType T = E->getType(); | |||
425 | if (const RecordType *RecordT = T->getAs<RecordType>()) { | |||
426 | CXXRecordDecl *RecordD = cast<CXXRecordDecl>(RecordT->getDecl()); | |||
427 | // C++ [expr.typeid]p3: | |||
428 | // [...] If the type of the expression is a class type, the class | |||
429 | // shall be completely-defined. | |||
430 | if (RequireCompleteType(TypeidLoc, T, diag::err_incomplete_typeid)) | |||
431 | return ExprError(); | |||
432 | ||||
433 | // C++ [expr.typeid]p3: | |||
434 | // When typeid is applied to an expression other than an glvalue of a | |||
435 | // polymorphic class type [...] [the] expression is an unevaluated | |||
436 | // operand. [...] | |||
437 | if (RecordD->isPolymorphic() && E->isGLValue()) { | |||
438 | // The subexpression is potentially evaluated; switch the context | |||
439 | // and recheck the subexpression. | |||
440 | ExprResult Result = TransformToPotentiallyEvaluated(E); | |||
441 | if (Result.isInvalid()) return ExprError(); | |||
442 | E = Result.get(); | |||
443 | ||||
444 | // We require a vtable to query the type at run time. | |||
445 | MarkVTableUsed(TypeidLoc, RecordD); | |||
446 | WasEvaluated = true; | |||
447 | } | |||
448 | } | |||
449 | ||||
450 | // C++ [expr.typeid]p4: | |||
451 | // [...] If the type of the type-id is a reference to a possibly | |||
452 | // cv-qualified type, the result of the typeid expression refers to a | |||
453 | // std::type_info object representing the cv-unqualified referenced | |||
454 | // type. | |||
455 | Qualifiers Quals; | |||
456 | QualType UnqualT = Context.getUnqualifiedArrayType(T, Quals); | |||
457 | if (!Context.hasSameType(T, UnqualT)) { | |||
458 | T = UnqualT; | |||
459 | E = ImpCastExprToType(E, UnqualT, CK_NoOp, E->getValueKind()).get(); | |||
460 | } | |||
461 | } | |||
462 | ||||
463 | if (E->getType()->isVariablyModifiedType()) | |||
464 | return ExprError(Diag(TypeidLoc, diag::err_variably_modified_typeid) | |||
465 | << E->getType()); | |||
466 | else if (!inTemplateInstantiation() && | |||
467 | E->HasSideEffects(Context, WasEvaluated)) { | |||
468 | // The expression operand for typeid is in an unevaluated expression | |||
469 | // context, so side effects could result in unintended consequences. | |||
470 | Diag(E->getExprLoc(), WasEvaluated | |||
471 | ? diag::warn_side_effects_typeid | |||
472 | : diag::warn_side_effects_unevaluated_context); | |||
473 | } | |||
474 | ||||
475 | return new (Context) CXXTypeidExpr(TypeInfoType.withConst(), E, | |||
476 | SourceRange(TypeidLoc, RParenLoc)); | |||
477 | } | |||
478 | ||||
479 | /// ActOnCXXTypeidOfType - Parse typeid( type-id ) or typeid (expression); | |||
480 | ExprResult | |||
481 | Sema::ActOnCXXTypeid(SourceLocation OpLoc, SourceLocation LParenLoc, | |||
482 | bool isType, void *TyOrExpr, SourceLocation RParenLoc) { | |||
483 | // Find the std::type_info type. | |||
484 | if (!getStdNamespace()) | |||
485 | return ExprError(Diag(OpLoc, diag::err_need_header_before_typeid)); | |||
486 | ||||
487 | if (!CXXTypeInfoDecl) { | |||
488 | IdentifierInfo *TypeInfoII = &PP.getIdentifierTable().get("type_info"); | |||
489 | LookupResult R(*this, TypeInfoII, SourceLocation(), LookupTagName); | |||
490 | LookupQualifiedName(R, getStdNamespace()); | |||
491 | CXXTypeInfoDecl = R.getAsSingle<RecordDecl>(); | |||
492 | // Microsoft's typeinfo doesn't have type_info in std but in the global | |||
493 | // namespace if _HAS_EXCEPTIONS is defined to 0. See PR13153. | |||
494 | if (!CXXTypeInfoDecl && LangOpts.MSVCCompat) { | |||
495 | LookupQualifiedName(R, Context.getTranslationUnitDecl()); | |||
496 | CXXTypeInfoDecl = R.getAsSingle<RecordDecl>(); | |||
497 | } | |||
498 | if (!CXXTypeInfoDecl) | |||
499 | return ExprError(Diag(OpLoc, diag::err_need_header_before_typeid)); | |||
500 | } | |||
501 | ||||
502 | if (!getLangOpts().RTTI) { | |||
503 | return ExprError(Diag(OpLoc, diag::err_no_typeid_with_fno_rtti)); | |||
504 | } | |||
505 | ||||
506 | QualType TypeInfoType = Context.getTypeDeclType(CXXTypeInfoDecl); | |||
507 | ||||
508 | if (isType) { | |||
509 | // The operand is a type; handle it as such. | |||
510 | TypeSourceInfo *TInfo = nullptr; | |||
511 | QualType T = GetTypeFromParser(ParsedType::getFromOpaquePtr(TyOrExpr), | |||
512 | &TInfo); | |||
513 | if (T.isNull()) | |||
514 | return ExprError(); | |||
515 | ||||
516 | if (!TInfo) | |||
517 | TInfo = Context.getTrivialTypeSourceInfo(T, OpLoc); | |||
518 | ||||
519 | return BuildCXXTypeId(TypeInfoType, OpLoc, TInfo, RParenLoc); | |||
520 | } | |||
521 | ||||
522 | // The operand is an expression. | |||
523 | return BuildCXXTypeId(TypeInfoType, OpLoc, (Expr*)TyOrExpr, RParenLoc); | |||
524 | } | |||
525 | ||||
526 | /// Grabs __declspec(uuid()) off a type, or returns 0 if we cannot resolve to | |||
527 | /// a single GUID. | |||
528 | static void | |||
529 | getUuidAttrOfType(Sema &SemaRef, QualType QT, | |||
530 | llvm::SmallSetVector<const UuidAttr *, 1> &UuidAttrs) { | |||
531 | // Optionally remove one level of pointer, reference or array indirection. | |||
532 | const Type *Ty = QT.getTypePtr(); | |||
533 | if (QT->isPointerType() || QT->isReferenceType()) | |||
534 | Ty = QT->getPointeeType().getTypePtr(); | |||
535 | else if (QT->isArrayType()) | |||
536 | Ty = Ty->getBaseElementTypeUnsafe(); | |||
537 | ||||
538 | const auto *TD = Ty->getAsTagDecl(); | |||
539 | if (!TD) | |||
540 | return; | |||
541 | ||||
542 | if (const auto *Uuid = TD->getMostRecentDecl()->getAttr<UuidAttr>()) { | |||
543 | UuidAttrs.insert(Uuid); | |||
544 | return; | |||
545 | } | |||
546 | ||||
547 | // __uuidof can grab UUIDs from template arguments. | |||
548 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(TD)) { | |||
549 | const TemplateArgumentList &TAL = CTSD->getTemplateArgs(); | |||
550 | for (const TemplateArgument &TA : TAL.asArray()) { | |||
551 | const UuidAttr *UuidForTA = nullptr; | |||
552 | if (TA.getKind() == TemplateArgument::Type) | |||
553 | getUuidAttrOfType(SemaRef, TA.getAsType(), UuidAttrs); | |||
554 | else if (TA.getKind() == TemplateArgument::Declaration) | |||
555 | getUuidAttrOfType(SemaRef, TA.getAsDecl()->getType(), UuidAttrs); | |||
556 | ||||
557 | if (UuidForTA) | |||
558 | UuidAttrs.insert(UuidForTA); | |||
559 | } | |||
560 | } | |||
561 | } | |||
562 | ||||
563 | /// \brief Build a Microsoft __uuidof expression with a type operand. | |||
564 | ExprResult Sema::BuildCXXUuidof(QualType TypeInfoType, | |||
565 | SourceLocation TypeidLoc, | |||
566 | TypeSourceInfo *Operand, | |||
567 | SourceLocation RParenLoc) { | |||
568 | StringRef UuidStr; | |||
569 | if (!Operand->getType()->isDependentType()) { | |||
570 | llvm::SmallSetVector<const UuidAttr *, 1> UuidAttrs; | |||
571 | getUuidAttrOfType(*this, Operand->getType(), UuidAttrs); | |||
572 | if (UuidAttrs.empty()) | |||
573 | return ExprError(Diag(TypeidLoc, diag::err_uuidof_without_guid)); | |||
574 | if (UuidAttrs.size() > 1) | |||
575 | return ExprError(Diag(TypeidLoc, diag::err_uuidof_with_multiple_guids)); | |||
576 | UuidStr = UuidAttrs.back()->getGuid(); | |||
577 | } | |||
578 | ||||
579 | return new (Context) CXXUuidofExpr(TypeInfoType.withConst(), Operand, UuidStr, | |||
580 | SourceRange(TypeidLoc, RParenLoc)); | |||
581 | } | |||
582 | ||||
583 | /// \brief Build a Microsoft __uuidof expression with an expression operand. | |||
584 | ExprResult Sema::BuildCXXUuidof(QualType TypeInfoType, | |||
585 | SourceLocation TypeidLoc, | |||
586 | Expr *E, | |||
587 | SourceLocation RParenLoc) { | |||
588 | StringRef UuidStr; | |||
589 | if (!E->getType()->isDependentType()) { | |||
590 | if (E->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNull)) { | |||
591 | UuidStr = "00000000-0000-0000-0000-000000000000"; | |||
592 | } else { | |||
593 | llvm::SmallSetVector<const UuidAttr *, 1> UuidAttrs; | |||
594 | getUuidAttrOfType(*this, E->getType(), UuidAttrs); | |||
595 | if (UuidAttrs.empty()) | |||
596 | return ExprError(Diag(TypeidLoc, diag::err_uuidof_without_guid)); | |||
597 | if (UuidAttrs.size() > 1) | |||
598 | return ExprError(Diag(TypeidLoc, diag::err_uuidof_with_multiple_guids)); | |||
599 | UuidStr = UuidAttrs.back()->getGuid(); | |||
600 | } | |||
601 | } | |||
602 | ||||
603 | return new (Context) CXXUuidofExpr(TypeInfoType.withConst(), E, UuidStr, | |||
604 | SourceRange(TypeidLoc, RParenLoc)); | |||
605 | } | |||
606 | ||||
607 | /// ActOnCXXUuidof - Parse __uuidof( type-id ) or __uuidof (expression); | |||
608 | ExprResult | |||
609 | Sema::ActOnCXXUuidof(SourceLocation OpLoc, SourceLocation LParenLoc, | |||
610 | bool isType, void *TyOrExpr, SourceLocation RParenLoc) { | |||
611 | // If MSVCGuidDecl has not been cached, do the lookup. | |||
612 | if (!MSVCGuidDecl) { | |||
613 | IdentifierInfo *GuidII = &PP.getIdentifierTable().get("_GUID"); | |||
614 | LookupResult R(*this, GuidII, SourceLocation(), LookupTagName); | |||
615 | LookupQualifiedName(R, Context.getTranslationUnitDecl()); | |||
616 | MSVCGuidDecl = R.getAsSingle<RecordDecl>(); | |||
617 | if (!MSVCGuidDecl) | |||
618 | return ExprError(Diag(OpLoc, diag::err_need_header_before_ms_uuidof)); | |||
619 | } | |||
620 | ||||
621 | QualType GuidType = Context.getTypeDeclType(MSVCGuidDecl); | |||
622 | ||||
623 | if (isType) { | |||
624 | // The operand is a type; handle it as such. | |||
625 | TypeSourceInfo *TInfo = nullptr; | |||
626 | QualType T = GetTypeFromParser(ParsedType::getFromOpaquePtr(TyOrExpr), | |||
627 | &TInfo); | |||
628 | if (T.isNull()) | |||
629 | return ExprError(); | |||
630 | ||||
631 | if (!TInfo) | |||
632 | TInfo = Context.getTrivialTypeSourceInfo(T, OpLoc); | |||
633 | ||||
634 | return BuildCXXUuidof(GuidType, OpLoc, TInfo, RParenLoc); | |||
635 | } | |||
636 | ||||
637 | // The operand is an expression. | |||
638 | return BuildCXXUuidof(GuidType, OpLoc, (Expr*)TyOrExpr, RParenLoc); | |||
639 | } | |||
640 | ||||
641 | /// ActOnCXXBoolLiteral - Parse {true,false} literals. | |||
642 | ExprResult | |||
643 | Sema::ActOnCXXBoolLiteral(SourceLocation OpLoc, tok::TokenKind Kind) { | |||
644 | assert((Kind == tok::kw_true || Kind == tok::kw_false) &&(static_cast <bool> ((Kind == tok::kw_true || Kind == tok ::kw_false) && "Unknown C++ Boolean value!") ? void ( 0) : __assert_fail ("(Kind == tok::kw_true || Kind == tok::kw_false) && \"Unknown C++ Boolean value!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 645, __extension__ __PRETTY_FUNCTION__)) | |||
645 | "Unknown C++ Boolean value!")(static_cast <bool> ((Kind == tok::kw_true || Kind == tok ::kw_false) && "Unknown C++ Boolean value!") ? void ( 0) : __assert_fail ("(Kind == tok::kw_true || Kind == tok::kw_false) && \"Unknown C++ Boolean value!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 645, __extension__ __PRETTY_FUNCTION__)); | |||
646 | return new (Context) | |||
647 | CXXBoolLiteralExpr(Kind == tok::kw_true, Context.BoolTy, OpLoc); | |||
648 | } | |||
649 | ||||
650 | /// ActOnCXXNullPtrLiteral - Parse 'nullptr'. | |||
651 | ExprResult | |||
652 | Sema::ActOnCXXNullPtrLiteral(SourceLocation Loc) { | |||
653 | return new (Context) CXXNullPtrLiteralExpr(Context.NullPtrTy, Loc); | |||
654 | } | |||
655 | ||||
656 | /// ActOnCXXThrow - Parse throw expressions. | |||
657 | ExprResult | |||
658 | Sema::ActOnCXXThrow(Scope *S, SourceLocation OpLoc, Expr *Ex) { | |||
659 | bool IsThrownVarInScope = false; | |||
660 | if (Ex) { | |||
661 | // C++0x [class.copymove]p31: | |||
662 | // When certain criteria are met, an implementation is allowed to omit the | |||
663 | // copy/move construction of a class object [...] | |||
664 | // | |||
665 | // - in a throw-expression, when the operand is the name of a | |||
666 | // non-volatile automatic object (other than a function or catch- | |||
667 | // clause parameter) whose scope does not extend beyond the end of the | |||
668 | // innermost enclosing try-block (if there is one), the copy/move | |||
669 | // operation from the operand to the exception object (15.1) can be | |||
670 | // omitted by constructing the automatic object directly into the | |||
671 | // exception object | |||
672 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(Ex->IgnoreParens())) | |||
673 | if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { | |||
674 | if (Var->hasLocalStorage() && !Var->getType().isVolatileQualified()) { | |||
675 | for( ; S; S = S->getParent()) { | |||
676 | if (S->isDeclScope(Var)) { | |||
677 | IsThrownVarInScope = true; | |||
678 | break; | |||
679 | } | |||
680 | ||||
681 | if (S->getFlags() & | |||
682 | (Scope::FnScope | Scope::ClassScope | Scope::BlockScope | | |||
683 | Scope::FunctionPrototypeScope | Scope::ObjCMethodScope | | |||
684 | Scope::TryScope)) | |||
685 | break; | |||
686 | } | |||
687 | } | |||
688 | } | |||
689 | } | |||
690 | ||||
691 | return BuildCXXThrow(OpLoc, Ex, IsThrownVarInScope); | |||
692 | } | |||
693 | ||||
694 | ExprResult Sema::BuildCXXThrow(SourceLocation OpLoc, Expr *Ex, | |||
695 | bool IsThrownVarInScope) { | |||
696 | // Don't report an error if 'throw' is used in system headers. | |||
697 | if (!getLangOpts().CXXExceptions && | |||
698 | !getSourceManager().isInSystemHeader(OpLoc)) | |||
699 | Diag(OpLoc, diag::err_exceptions_disabled) << "throw"; | |||
700 | ||||
701 | // Exceptions aren't allowed in CUDA device code. | |||
702 | if (getLangOpts().CUDA) | |||
703 | CUDADiagIfDeviceCode(OpLoc, diag::err_cuda_device_exceptions) | |||
704 | << "throw" << CurrentCUDATarget(); | |||
705 | ||||
706 | if (getCurScope() && getCurScope()->isOpenMPSimdDirectiveScope()) | |||
707 | Diag(OpLoc, diag::err_omp_simd_region_cannot_use_stmt) << "throw"; | |||
708 | ||||
709 | if (Ex && !Ex->isTypeDependent()) { | |||
710 | QualType ExceptionObjectTy = Context.getExceptionObjectType(Ex->getType()); | |||
711 | if (CheckCXXThrowOperand(OpLoc, ExceptionObjectTy, Ex)) | |||
712 | return ExprError(); | |||
713 | ||||
714 | // Initialize the exception result. This implicitly weeds out | |||
715 | // abstract types or types with inaccessible copy constructors. | |||
716 | ||||
717 | // C++0x [class.copymove]p31: | |||
718 | // When certain criteria are met, an implementation is allowed to omit the | |||
719 | // copy/move construction of a class object [...] | |||
720 | // | |||
721 | // - in a throw-expression, when the operand is the name of a | |||
722 | // non-volatile automatic object (other than a function or | |||
723 | // catch-clause | |||
724 | // parameter) whose scope does not extend beyond the end of the | |||
725 | // innermost enclosing try-block (if there is one), the copy/move | |||
726 | // operation from the operand to the exception object (15.1) can be | |||
727 | // omitted by constructing the automatic object directly into the | |||
728 | // exception object | |||
729 | const VarDecl *NRVOVariable = nullptr; | |||
730 | if (IsThrownVarInScope) | |||
731 | NRVOVariable = getCopyElisionCandidate(QualType(), Ex, CES_Strict); | |||
732 | ||||
733 | InitializedEntity Entity = InitializedEntity::InitializeException( | |||
734 | OpLoc, ExceptionObjectTy, | |||
735 | /*NRVO=*/NRVOVariable != nullptr); | |||
736 | ExprResult Res = PerformMoveOrCopyInitialization( | |||
737 | Entity, NRVOVariable, QualType(), Ex, IsThrownVarInScope); | |||
738 | if (Res.isInvalid()) | |||
739 | return ExprError(); | |||
740 | Ex = Res.get(); | |||
741 | } | |||
742 | ||||
743 | return new (Context) | |||
744 | CXXThrowExpr(Ex, Context.VoidTy, OpLoc, IsThrownVarInScope); | |||
745 | } | |||
746 | ||||
747 | static void | |||
748 | collectPublicBases(CXXRecordDecl *RD, | |||
749 | llvm::DenseMap<CXXRecordDecl *, unsigned> &SubobjectsSeen, | |||
750 | llvm::SmallPtrSetImpl<CXXRecordDecl *> &VBases, | |||
751 | llvm::SetVector<CXXRecordDecl *> &PublicSubobjectsSeen, | |||
752 | bool ParentIsPublic) { | |||
753 | for (const CXXBaseSpecifier &BS : RD->bases()) { | |||
754 | CXXRecordDecl *BaseDecl = BS.getType()->getAsCXXRecordDecl(); | |||
755 | bool NewSubobject; | |||
756 | // Virtual bases constitute the same subobject. Non-virtual bases are | |||
757 | // always distinct subobjects. | |||
758 | if (BS.isVirtual()) | |||
759 | NewSubobject = VBases.insert(BaseDecl).second; | |||
760 | else | |||
761 | NewSubobject = true; | |||
762 | ||||
763 | if (NewSubobject) | |||
764 | ++SubobjectsSeen[BaseDecl]; | |||
765 | ||||
766 | // Only add subobjects which have public access throughout the entire chain. | |||
767 | bool PublicPath = ParentIsPublic && BS.getAccessSpecifier() == AS_public; | |||
768 | if (PublicPath) | |||
769 | PublicSubobjectsSeen.insert(BaseDecl); | |||
770 | ||||
771 | // Recurse on to each base subobject. | |||
772 | collectPublicBases(BaseDecl, SubobjectsSeen, VBases, PublicSubobjectsSeen, | |||
773 | PublicPath); | |||
774 | } | |||
775 | } | |||
776 | ||||
777 | static void getUnambiguousPublicSubobjects( | |||
778 | CXXRecordDecl *RD, llvm::SmallVectorImpl<CXXRecordDecl *> &Objects) { | |||
779 | llvm::DenseMap<CXXRecordDecl *, unsigned> SubobjectsSeen; | |||
780 | llvm::SmallSet<CXXRecordDecl *, 2> VBases; | |||
781 | llvm::SetVector<CXXRecordDecl *> PublicSubobjectsSeen; | |||
782 | SubobjectsSeen[RD] = 1; | |||
783 | PublicSubobjectsSeen.insert(RD); | |||
784 | collectPublicBases(RD, SubobjectsSeen, VBases, PublicSubobjectsSeen, | |||
785 | /*ParentIsPublic=*/true); | |||
786 | ||||
787 | for (CXXRecordDecl *PublicSubobject : PublicSubobjectsSeen) { | |||
788 | // Skip ambiguous objects. | |||
789 | if (SubobjectsSeen[PublicSubobject] > 1) | |||
790 | continue; | |||
791 | ||||
792 | Objects.push_back(PublicSubobject); | |||
793 | } | |||
794 | } | |||
795 | ||||
796 | /// CheckCXXThrowOperand - Validate the operand of a throw. | |||
797 | bool Sema::CheckCXXThrowOperand(SourceLocation ThrowLoc, | |||
798 | QualType ExceptionObjectTy, Expr *E) { | |||
799 | // If the type of the exception would be an incomplete type or a pointer | |||
800 | // to an incomplete type other than (cv) void the program is ill-formed. | |||
801 | QualType Ty = ExceptionObjectTy; | |||
802 | bool isPointer = false; | |||
803 | if (const PointerType* Ptr = Ty->getAs<PointerType>()) { | |||
804 | Ty = Ptr->getPointeeType(); | |||
805 | isPointer = true; | |||
806 | } | |||
807 | if (!isPointer || !Ty->isVoidType()) { | |||
808 | if (RequireCompleteType(ThrowLoc, Ty, | |||
809 | isPointer ? diag::err_throw_incomplete_ptr | |||
810 | : diag::err_throw_incomplete, | |||
811 | E->getSourceRange())) | |||
812 | return true; | |||
813 | ||||
814 | if (RequireNonAbstractType(ThrowLoc, ExceptionObjectTy, | |||
815 | diag::err_throw_abstract_type, E)) | |||
816 | return true; | |||
817 | } | |||
818 | ||||
819 | // If the exception has class type, we need additional handling. | |||
820 | CXXRecordDecl *RD = Ty->getAsCXXRecordDecl(); | |||
821 | if (!RD) | |||
822 | return false; | |||
823 | ||||
824 | // If we are throwing a polymorphic class type or pointer thereof, | |||
825 | // exception handling will make use of the vtable. | |||
826 | MarkVTableUsed(ThrowLoc, RD); | |||
827 | ||||
828 | // If a pointer is thrown, the referenced object will not be destroyed. | |||
829 | if (isPointer) | |||
830 | return false; | |||
831 | ||||
832 | // If the class has a destructor, we must be able to call it. | |||
833 | if (!RD->hasIrrelevantDestructor()) { | |||
834 | if (CXXDestructorDecl *Destructor = LookupDestructor(RD)) { | |||
835 | MarkFunctionReferenced(E->getExprLoc(), Destructor); | |||
836 | CheckDestructorAccess(E->getExprLoc(), Destructor, | |||
837 | PDiag(diag::err_access_dtor_exception) << Ty); | |||
838 | if (DiagnoseUseOfDecl(Destructor, E->getExprLoc())) | |||
839 | return true; | |||
840 | } | |||
841 | } | |||
842 | ||||
843 | // The MSVC ABI creates a list of all types which can catch the exception | |||
844 | // object. This list also references the appropriate copy constructor to call | |||
845 | // if the object is caught by value and has a non-trivial copy constructor. | |||
846 | if (Context.getTargetInfo().getCXXABI().isMicrosoft()) { | |||
847 | // We are only interested in the public, unambiguous bases contained within | |||
848 | // the exception object. Bases which are ambiguous or otherwise | |||
849 | // inaccessible are not catchable types. | |||
850 | llvm::SmallVector<CXXRecordDecl *, 2> UnambiguousPublicSubobjects; | |||
851 | getUnambiguousPublicSubobjects(RD, UnambiguousPublicSubobjects); | |||
852 | ||||
853 | for (CXXRecordDecl *Subobject : UnambiguousPublicSubobjects) { | |||
854 | // Attempt to lookup the copy constructor. Various pieces of machinery | |||
855 | // will spring into action, like template instantiation, which means this | |||
856 | // cannot be a simple walk of the class's decls. Instead, we must perform | |||
857 | // lookup and overload resolution. | |||
858 | CXXConstructorDecl *CD = LookupCopyingConstructor(Subobject, 0); | |||
859 | if (!CD) | |||
860 | continue; | |||
861 | ||||
862 | // Mark the constructor referenced as it is used by this throw expression. | |||
863 | MarkFunctionReferenced(E->getExprLoc(), CD); | |||
864 | ||||
865 | // Skip this copy constructor if it is trivial, we don't need to record it | |||
866 | // in the catchable type data. | |||
867 | if (CD->isTrivial()) | |||
868 | continue; | |||
869 | ||||
870 | // The copy constructor is non-trivial, create a mapping from this class | |||
871 | // type to this constructor. | |||
872 | // N.B. The selection of copy constructor is not sensitive to this | |||
873 | // particular throw-site. Lookup will be performed at the catch-site to | |||
874 | // ensure that the copy constructor is, in fact, accessible (via | |||
875 | // friendship or any other means). | |||
876 | Context.addCopyConstructorForExceptionObject(Subobject, CD); | |||
877 | ||||
878 | // We don't keep the instantiated default argument expressions around so | |||
879 | // we must rebuild them here. | |||
880 | for (unsigned I = 1, E = CD->getNumParams(); I != E; ++I) { | |||
881 | if (CheckCXXDefaultArgExpr(ThrowLoc, CD, CD->getParamDecl(I))) | |||
882 | return true; | |||
883 | } | |||
884 | } | |||
885 | } | |||
886 | ||||
887 | return false; | |||
888 | } | |||
889 | ||||
890 | static QualType adjustCVQualifiersForCXXThisWithinLambda( | |||
891 | ArrayRef<FunctionScopeInfo *> FunctionScopes, QualType ThisTy, | |||
892 | DeclContext *CurSemaContext, ASTContext &ASTCtx) { | |||
893 | ||||
894 | QualType ClassType = ThisTy->getPointeeType(); | |||
895 | LambdaScopeInfo *CurLSI = nullptr; | |||
896 | DeclContext *CurDC = CurSemaContext; | |||
897 | ||||
898 | // Iterate through the stack of lambdas starting from the innermost lambda to | |||
899 | // the outermost lambda, checking if '*this' is ever captured by copy - since | |||
900 | // that could change the cv-qualifiers of the '*this' object. | |||
901 | // The object referred to by '*this' starts out with the cv-qualifiers of its | |||
902 | // member function. We then start with the innermost lambda and iterate | |||
903 | // outward checking to see if any lambda performs a by-copy capture of '*this' | |||
904 | // - and if so, any nested lambda must respect the 'constness' of that | |||
905 | // capturing lamdbda's call operator. | |||
906 | // | |||
907 | ||||
908 | // Since the FunctionScopeInfo stack is representative of the lexical | |||
909 | // nesting of the lambda expressions during initial parsing (and is the best | |||
910 | // place for querying information about captures about lambdas that are | |||
911 | // partially processed) and perhaps during instantiation of function templates | |||
912 | // that contain lambda expressions that need to be transformed BUT not | |||
913 | // necessarily during instantiation of a nested generic lambda's function call | |||
914 | // operator (which might even be instantiated at the end of the TU) - at which | |||
915 | // time the DeclContext tree is mature enough to query capture information | |||
916 | // reliably - we use a two pronged approach to walk through all the lexically | |||
917 | // enclosing lambda expressions: | |||
918 | // | |||
919 | // 1) Climb down the FunctionScopeInfo stack as long as each item represents | |||
920 | // a Lambda (i.e. LambdaScopeInfo) AND each LSI's 'closure-type' is lexically | |||
921 | // enclosed by the call-operator of the LSI below it on the stack (while | |||
922 | // tracking the enclosing DC for step 2 if needed). Note the topmost LSI on | |||
923 | // the stack represents the innermost lambda. | |||
924 | // | |||
925 | // 2) If we run out of enclosing LSI's, check if the enclosing DeclContext | |||
926 | // represents a lambda's call operator. If it does, we must be instantiating | |||
927 | // a generic lambda's call operator (represented by the Current LSI, and | |||
928 | // should be the only scenario where an inconsistency between the LSI and the | |||
929 | // DeclContext should occur), so climb out the DeclContexts if they | |||
930 | // represent lambdas, while querying the corresponding closure types | |||
931 | // regarding capture information. | |||
932 | ||||
933 | // 1) Climb down the function scope info stack. | |||
934 | for (int I = FunctionScopes.size(); | |||
935 | I-- && isa<LambdaScopeInfo>(FunctionScopes[I]) && | |||
936 | (!CurLSI || !CurLSI->Lambda || CurLSI->Lambda->getDeclContext() == | |||
937 | cast<LambdaScopeInfo>(FunctionScopes[I])->CallOperator); | |||
938 | CurDC = getLambdaAwareParentOfDeclContext(CurDC)) { | |||
939 | CurLSI = cast<LambdaScopeInfo>(FunctionScopes[I]); | |||
940 | ||||
941 | if (!CurLSI->isCXXThisCaptured()) | |||
942 | continue; | |||
943 | ||||
944 | auto C = CurLSI->getCXXThisCapture(); | |||
945 | ||||
946 | if (C.isCopyCapture()) { | |||
947 | ClassType.removeLocalCVRQualifiers(Qualifiers::CVRMask); | |||
948 | if (CurLSI->CallOperator->isConst()) | |||
949 | ClassType.addConst(); | |||
950 | return ASTCtx.getPointerType(ClassType); | |||
951 | } | |||
952 | } | |||
953 | ||||
954 | // 2) We've run out of ScopeInfos but check if CurDC is a lambda (which can | |||
955 | // happen during instantiation of its nested generic lambda call operator) | |||
956 | if (isLambdaCallOperator(CurDC)) { | |||
957 | assert(CurLSI && "While computing 'this' capture-type for a generic "(static_cast <bool> (CurLSI && "While computing 'this' capture-type for a generic " "lambda, we must have a corresponding LambdaScopeInfo") ? void (0) : __assert_fail ("CurLSI && \"While computing 'this' capture-type for a generic \" \"lambda, we must have a corresponding LambdaScopeInfo\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 958, __extension__ __PRETTY_FUNCTION__)) | |||
958 | "lambda, we must have a corresponding LambdaScopeInfo")(static_cast <bool> (CurLSI && "While computing 'this' capture-type for a generic " "lambda, we must have a corresponding LambdaScopeInfo") ? void (0) : __assert_fail ("CurLSI && \"While computing 'this' capture-type for a generic \" \"lambda, we must have a corresponding LambdaScopeInfo\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 958, __extension__ __PRETTY_FUNCTION__)); | |||
959 | assert(isGenericLambdaCallOperatorSpecialization(CurLSI->CallOperator) &&(static_cast <bool> (isGenericLambdaCallOperatorSpecialization (CurLSI->CallOperator) && "While computing 'this' capture-type for a generic lambda, when we " "run out of enclosing LSI's, yet the enclosing DC is a " "lambda-call-operator we must be (i.e. Current LSI) in a generic " "lambda call oeprator") ? void (0) : __assert_fail ("isGenericLambdaCallOperatorSpecialization(CurLSI->CallOperator) && \"While computing 'this' capture-type for a generic lambda, when we \" \"run out of enclosing LSI's, yet the enclosing DC is a \" \"lambda-call-operator we must be (i.e. Current LSI) in a generic \" \"lambda call oeprator\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 963, __extension__ __PRETTY_FUNCTION__)) | |||
960 | "While computing 'this' capture-type for a generic lambda, when we "(static_cast <bool> (isGenericLambdaCallOperatorSpecialization (CurLSI->CallOperator) && "While computing 'this' capture-type for a generic lambda, when we " "run out of enclosing LSI's, yet the enclosing DC is a " "lambda-call-operator we must be (i.e. Current LSI) in a generic " "lambda call oeprator") ? void (0) : __assert_fail ("isGenericLambdaCallOperatorSpecialization(CurLSI->CallOperator) && \"While computing 'this' capture-type for a generic lambda, when we \" \"run out of enclosing LSI's, yet the enclosing DC is a \" \"lambda-call-operator we must be (i.e. Current LSI) in a generic \" \"lambda call oeprator\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 963, __extension__ __PRETTY_FUNCTION__)) | |||
961 | "run out of enclosing LSI's, yet the enclosing DC is a "(static_cast <bool> (isGenericLambdaCallOperatorSpecialization (CurLSI->CallOperator) && "While computing 'this' capture-type for a generic lambda, when we " "run out of enclosing LSI's, yet the enclosing DC is a " "lambda-call-operator we must be (i.e. Current LSI) in a generic " "lambda call oeprator") ? void (0) : __assert_fail ("isGenericLambdaCallOperatorSpecialization(CurLSI->CallOperator) && \"While computing 'this' capture-type for a generic lambda, when we \" \"run out of enclosing LSI's, yet the enclosing DC is a \" \"lambda-call-operator we must be (i.e. Current LSI) in a generic \" \"lambda call oeprator\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 963, __extension__ __PRETTY_FUNCTION__)) | |||
962 | "lambda-call-operator we must be (i.e. Current LSI) in a generic "(static_cast <bool> (isGenericLambdaCallOperatorSpecialization (CurLSI->CallOperator) && "While computing 'this' capture-type for a generic lambda, when we " "run out of enclosing LSI's, yet the enclosing DC is a " "lambda-call-operator we must be (i.e. Current LSI) in a generic " "lambda call oeprator") ? void (0) : __assert_fail ("isGenericLambdaCallOperatorSpecialization(CurLSI->CallOperator) && \"While computing 'this' capture-type for a generic lambda, when we \" \"run out of enclosing LSI's, yet the enclosing DC is a \" \"lambda-call-operator we must be (i.e. Current LSI) in a generic \" \"lambda call oeprator\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 963, __extension__ __PRETTY_FUNCTION__)) | |||
963 | "lambda call oeprator")(static_cast <bool> (isGenericLambdaCallOperatorSpecialization (CurLSI->CallOperator) && "While computing 'this' capture-type for a generic lambda, when we " "run out of enclosing LSI's, yet the enclosing DC is a " "lambda-call-operator we must be (i.e. Current LSI) in a generic " "lambda call oeprator") ? void (0) : __assert_fail ("isGenericLambdaCallOperatorSpecialization(CurLSI->CallOperator) && \"While computing 'this' capture-type for a generic lambda, when we \" \"run out of enclosing LSI's, yet the enclosing DC is a \" \"lambda-call-operator we must be (i.e. Current LSI) in a generic \" \"lambda call oeprator\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 963, __extension__ __PRETTY_FUNCTION__)); | |||
964 | assert(CurDC == getLambdaAwareParentOfDeclContext(CurLSI->CallOperator))(static_cast <bool> (CurDC == getLambdaAwareParentOfDeclContext (CurLSI->CallOperator)) ? void (0) : __assert_fail ("CurDC == getLambdaAwareParentOfDeclContext(CurLSI->CallOperator)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 964, __extension__ __PRETTY_FUNCTION__)); | |||
965 | ||||
966 | auto IsThisCaptured = | |||
967 | [](CXXRecordDecl *Closure, bool &IsByCopy, bool &IsConst) { | |||
968 | IsConst = false; | |||
969 | IsByCopy = false; | |||
970 | for (auto &&C : Closure->captures()) { | |||
971 | if (C.capturesThis()) { | |||
972 | if (C.getCaptureKind() == LCK_StarThis) | |||
973 | IsByCopy = true; | |||
974 | if (Closure->getLambdaCallOperator()->isConst()) | |||
975 | IsConst = true; | |||
976 | return true; | |||
977 | } | |||
978 | } | |||
979 | return false; | |||
980 | }; | |||
981 | ||||
982 | bool IsByCopyCapture = false; | |||
983 | bool IsConstCapture = false; | |||
984 | CXXRecordDecl *Closure = cast<CXXRecordDecl>(CurDC->getParent()); | |||
985 | while (Closure && | |||
986 | IsThisCaptured(Closure, IsByCopyCapture, IsConstCapture)) { | |||
987 | if (IsByCopyCapture) { | |||
988 | ClassType.removeLocalCVRQualifiers(Qualifiers::CVRMask); | |||
989 | if (IsConstCapture) | |||
990 | ClassType.addConst(); | |||
991 | return ASTCtx.getPointerType(ClassType); | |||
992 | } | |||
993 | Closure = isLambdaCallOperator(Closure->getParent()) | |||
994 | ? cast<CXXRecordDecl>(Closure->getParent()->getParent()) | |||
995 | : nullptr; | |||
996 | } | |||
997 | } | |||
998 | return ASTCtx.getPointerType(ClassType); | |||
999 | } | |||
1000 | ||||
1001 | QualType Sema::getCurrentThisType() { | |||
1002 | DeclContext *DC = getFunctionLevelDeclContext(); | |||
1003 | QualType ThisTy = CXXThisTypeOverride; | |||
1004 | ||||
1005 | if (CXXMethodDecl *method = dyn_cast<CXXMethodDecl>(DC)) { | |||
1006 | if (method && method->isInstance()) | |||
1007 | ThisTy = method->getThisType(Context); | |||
1008 | } | |||
1009 | ||||
1010 | if (ThisTy.isNull() && isLambdaCallOperator(CurContext) && | |||
1011 | inTemplateInstantiation()) { | |||
1012 | ||||
1013 | assert(isa<CXXRecordDecl>(DC) &&(static_cast <bool> (isa<CXXRecordDecl>(DC) && "Trying to get 'this' type from static method?") ? void (0) : __assert_fail ("isa<CXXRecordDecl>(DC) && \"Trying to get 'this' type from static method?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1014, __extension__ __PRETTY_FUNCTION__)) | |||
1014 | "Trying to get 'this' type from static method?")(static_cast <bool> (isa<CXXRecordDecl>(DC) && "Trying to get 'this' type from static method?") ? void (0) : __assert_fail ("isa<CXXRecordDecl>(DC) && \"Trying to get 'this' type from static method?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1014, __extension__ __PRETTY_FUNCTION__)); | |||
1015 | ||||
1016 | // This is a lambda call operator that is being instantiated as a default | |||
1017 | // initializer. DC must point to the enclosing class type, so we can recover | |||
1018 | // the 'this' type from it. | |||
1019 | ||||
1020 | QualType ClassTy = Context.getTypeDeclType(cast<CXXRecordDecl>(DC)); | |||
1021 | // There are no cv-qualifiers for 'this' within default initializers, | |||
1022 | // per [expr.prim.general]p4. | |||
1023 | ThisTy = Context.getPointerType(ClassTy); | |||
1024 | } | |||
1025 | ||||
1026 | // If we are within a lambda's call operator, the cv-qualifiers of 'this' | |||
1027 | // might need to be adjusted if the lambda or any of its enclosing lambda's | |||
1028 | // captures '*this' by copy. | |||
1029 | if (!ThisTy.isNull() && isLambdaCallOperator(CurContext)) | |||
1030 | return adjustCVQualifiersForCXXThisWithinLambda(FunctionScopes, ThisTy, | |||
1031 | CurContext, Context); | |||
1032 | return ThisTy; | |||
1033 | } | |||
1034 | ||||
1035 | Sema::CXXThisScopeRAII::CXXThisScopeRAII(Sema &S, | |||
1036 | Decl *ContextDecl, | |||
1037 | unsigned CXXThisTypeQuals, | |||
1038 | bool Enabled) | |||
1039 | : S(S), OldCXXThisTypeOverride(S.CXXThisTypeOverride), Enabled(false) | |||
1040 | { | |||
1041 | if (!Enabled || !ContextDecl) | |||
1042 | return; | |||
1043 | ||||
1044 | CXXRecordDecl *Record = nullptr; | |||
1045 | if (ClassTemplateDecl *Template = dyn_cast<ClassTemplateDecl>(ContextDecl)) | |||
1046 | Record = Template->getTemplatedDecl(); | |||
1047 | else | |||
1048 | Record = cast<CXXRecordDecl>(ContextDecl); | |||
1049 | ||||
1050 | // We care only for CVR qualifiers here, so cut everything else. | |||
1051 | CXXThisTypeQuals &= Qualifiers::FastMask; | |||
1052 | S.CXXThisTypeOverride | |||
1053 | = S.Context.getPointerType( | |||
1054 | S.Context.getRecordType(Record).withCVRQualifiers(CXXThisTypeQuals)); | |||
1055 | ||||
1056 | this->Enabled = true; | |||
1057 | } | |||
1058 | ||||
1059 | ||||
1060 | Sema::CXXThisScopeRAII::~CXXThisScopeRAII() { | |||
1061 | if (Enabled) { | |||
1062 | S.CXXThisTypeOverride = OldCXXThisTypeOverride; | |||
1063 | } | |||
1064 | } | |||
1065 | ||||
1066 | static Expr *captureThis(Sema &S, ASTContext &Context, RecordDecl *RD, | |||
1067 | QualType ThisTy, SourceLocation Loc, | |||
1068 | const bool ByCopy) { | |||
1069 | ||||
1070 | QualType AdjustedThisTy = ThisTy; | |||
1071 | // The type of the corresponding data member (not a 'this' pointer if 'by | |||
1072 | // copy'). | |||
1073 | QualType CaptureThisFieldTy = ThisTy; | |||
1074 | if (ByCopy) { | |||
1075 | // If we are capturing the object referred to by '*this' by copy, ignore any | |||
1076 | // cv qualifiers inherited from the type of the member function for the type | |||
1077 | // of the closure-type's corresponding data member and any use of 'this'. | |||
1078 | CaptureThisFieldTy = ThisTy->getPointeeType(); | |||
1079 | CaptureThisFieldTy.removeLocalCVRQualifiers(Qualifiers::CVRMask); | |||
1080 | AdjustedThisTy = Context.getPointerType(CaptureThisFieldTy); | |||
1081 | } | |||
1082 | ||||
1083 | FieldDecl *Field = FieldDecl::Create( | |||
1084 | Context, RD, Loc, Loc, nullptr, CaptureThisFieldTy, | |||
1085 | Context.getTrivialTypeSourceInfo(CaptureThisFieldTy, Loc), nullptr, false, | |||
1086 | ICIS_NoInit); | |||
1087 | ||||
1088 | Field->setImplicit(true); | |||
1089 | Field->setAccess(AS_private); | |||
1090 | RD->addDecl(Field); | |||
1091 | Expr *This = | |||
1092 | new (Context) CXXThisExpr(Loc, ThisTy, /*isImplicit*/ true); | |||
1093 | if (ByCopy) { | |||
1094 | Expr *StarThis = S.CreateBuiltinUnaryOp(Loc, | |||
1095 | UO_Deref, | |||
1096 | This).get(); | |||
1097 | InitializedEntity Entity = InitializedEntity::InitializeLambdaCapture( | |||
1098 | nullptr, CaptureThisFieldTy, Loc); | |||
1099 | InitializationKind InitKind = InitializationKind::CreateDirect(Loc, Loc, Loc); | |||
1100 | InitializationSequence Init(S, Entity, InitKind, StarThis); | |||
1101 | ExprResult ER = Init.Perform(S, Entity, InitKind, StarThis); | |||
1102 | if (ER.isInvalid()) return nullptr; | |||
1103 | return ER.get(); | |||
1104 | } | |||
1105 | return This; | |||
1106 | } | |||
1107 | ||||
1108 | bool Sema::CheckCXXThisCapture(SourceLocation Loc, const bool Explicit, | |||
1109 | bool BuildAndDiagnose, const unsigned *const FunctionScopeIndexToStopAt, | |||
1110 | const bool ByCopy) { | |||
1111 | // We don't need to capture this in an unevaluated context. | |||
1112 | if (isUnevaluatedContext() && !Explicit) | |||
1113 | return true; | |||
1114 | ||||
1115 | assert((!ByCopy || Explicit) && "cannot implicitly capture *this by value")(static_cast <bool> ((!ByCopy || Explicit) && "cannot implicitly capture *this by value" ) ? void (0) : __assert_fail ("(!ByCopy || Explicit) && \"cannot implicitly capture *this by value\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1115, __extension__ __PRETTY_FUNCTION__)); | |||
1116 | ||||
1117 | const int MaxFunctionScopesIndex = FunctionScopeIndexToStopAt | |||
1118 | ? *FunctionScopeIndexToStopAt | |||
1119 | : FunctionScopes.size() - 1; | |||
1120 | ||||
1121 | // Check that we can capture the *enclosing object* (referred to by '*this') | |||
1122 | // by the capturing-entity/closure (lambda/block/etc) at | |||
1123 | // MaxFunctionScopesIndex-deep on the FunctionScopes stack. | |||
1124 | ||||
1125 | // Note: The *enclosing object* can only be captured by-value by a | |||
1126 | // closure that is a lambda, using the explicit notation: | |||
1127 | // [*this] { ... }. | |||
1128 | // Every other capture of the *enclosing object* results in its by-reference | |||
1129 | // capture. | |||
1130 | ||||
1131 | // For a closure 'L' (at MaxFunctionScopesIndex in the FunctionScopes | |||
1132 | // stack), we can capture the *enclosing object* only if: | |||
1133 | // - 'L' has an explicit byref or byval capture of the *enclosing object* | |||
1134 | // - or, 'L' has an implicit capture. | |||
1135 | // AND | |||
1136 | // -- there is no enclosing closure | |||
1137 | // -- or, there is some enclosing closure 'E' that has already captured the | |||
1138 | // *enclosing object*, and every intervening closure (if any) between 'E' | |||
1139 | // and 'L' can implicitly capture the *enclosing object*. | |||
1140 | // -- or, every enclosing closure can implicitly capture the | |||
1141 | // *enclosing object* | |||
1142 | ||||
1143 | ||||
1144 | unsigned NumCapturingClosures = 0; | |||
1145 | for (int idx = MaxFunctionScopesIndex; idx >= 0; idx--) { | |||
1146 | if (CapturingScopeInfo *CSI = | |||
1147 | dyn_cast<CapturingScopeInfo>(FunctionScopes[idx])) { | |||
1148 | if (CSI->CXXThisCaptureIndex != 0) { | |||
1149 | // 'this' is already being captured; there isn't anything more to do. | |||
1150 | CSI->Captures[CSI->CXXThisCaptureIndex - 1].markUsed(BuildAndDiagnose); | |||
1151 | break; | |||
1152 | } | |||
1153 | LambdaScopeInfo *LSI = dyn_cast<LambdaScopeInfo>(CSI); | |||
1154 | if (LSI && isGenericLambdaCallOperatorSpecialization(LSI->CallOperator)) { | |||
1155 | // This context can't implicitly capture 'this'; fail out. | |||
1156 | if (BuildAndDiagnose) | |||
1157 | Diag(Loc, diag::err_this_capture) | |||
1158 | << (Explicit && idx == MaxFunctionScopesIndex); | |||
1159 | return true; | |||
1160 | } | |||
1161 | if (CSI->ImpCaptureStyle == CapturingScopeInfo::ImpCap_LambdaByref || | |||
1162 | CSI->ImpCaptureStyle == CapturingScopeInfo::ImpCap_LambdaByval || | |||
1163 | CSI->ImpCaptureStyle == CapturingScopeInfo::ImpCap_Block || | |||
1164 | CSI->ImpCaptureStyle == CapturingScopeInfo::ImpCap_CapturedRegion || | |||
1165 | (Explicit && idx == MaxFunctionScopesIndex)) { | |||
1166 | // Regarding (Explicit && idx == MaxFunctionScopesIndex): only the first | |||
1167 | // iteration through can be an explicit capture, all enclosing closures, | |||
1168 | // if any, must perform implicit captures. | |||
1169 | ||||
1170 | // This closure can capture 'this'; continue looking upwards. | |||
1171 | NumCapturingClosures++; | |||
1172 | continue; | |||
1173 | } | |||
1174 | // This context can't implicitly capture 'this'; fail out. | |||
1175 | if (BuildAndDiagnose) | |||
1176 | Diag(Loc, diag::err_this_capture) | |||
1177 | << (Explicit && idx == MaxFunctionScopesIndex); | |||
1178 | return true; | |||
1179 | } | |||
1180 | break; | |||
1181 | } | |||
1182 | if (!BuildAndDiagnose) return false; | |||
1183 | ||||
1184 | // If we got here, then the closure at MaxFunctionScopesIndex on the | |||
1185 | // FunctionScopes stack, can capture the *enclosing object*, so capture it | |||
1186 | // (including implicit by-reference captures in any enclosing closures). | |||
1187 | ||||
1188 | // In the loop below, respect the ByCopy flag only for the closure requesting | |||
1189 | // the capture (i.e. first iteration through the loop below). Ignore it for | |||
1190 | // all enclosing closure's up to NumCapturingClosures (since they must be | |||
1191 | // implicitly capturing the *enclosing object* by reference (see loop | |||
1192 | // above)). | |||
1193 | assert((!ByCopy ||(static_cast <bool> ((!ByCopy || dyn_cast<LambdaScopeInfo >(FunctionScopes[MaxFunctionScopesIndex])) && "Only a lambda can capture the enclosing object (referred to by " "*this) by copy") ? void (0) : __assert_fail ("(!ByCopy || dyn_cast<LambdaScopeInfo>(FunctionScopes[MaxFunctionScopesIndex])) && \"Only a lambda can capture the enclosing object (referred to by \" \"*this) by copy\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1196, __extension__ __PRETTY_FUNCTION__)) | |||
1194 | dyn_cast<LambdaScopeInfo>(FunctionScopes[MaxFunctionScopesIndex])) &&(static_cast <bool> ((!ByCopy || dyn_cast<LambdaScopeInfo >(FunctionScopes[MaxFunctionScopesIndex])) && "Only a lambda can capture the enclosing object (referred to by " "*this) by copy") ? void (0) : __assert_fail ("(!ByCopy || dyn_cast<LambdaScopeInfo>(FunctionScopes[MaxFunctionScopesIndex])) && \"Only a lambda can capture the enclosing object (referred to by \" \"*this) by copy\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1196, __extension__ __PRETTY_FUNCTION__)) | |||
1195 | "Only a lambda can capture the enclosing object (referred to by "(static_cast <bool> ((!ByCopy || dyn_cast<LambdaScopeInfo >(FunctionScopes[MaxFunctionScopesIndex])) && "Only a lambda can capture the enclosing object (referred to by " "*this) by copy") ? void (0) : __assert_fail ("(!ByCopy || dyn_cast<LambdaScopeInfo>(FunctionScopes[MaxFunctionScopesIndex])) && \"Only a lambda can capture the enclosing object (referred to by \" \"*this) by copy\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1196, __extension__ __PRETTY_FUNCTION__)) | |||
1196 | "*this) by copy")(static_cast <bool> ((!ByCopy || dyn_cast<LambdaScopeInfo >(FunctionScopes[MaxFunctionScopesIndex])) && "Only a lambda can capture the enclosing object (referred to by " "*this) by copy") ? void (0) : __assert_fail ("(!ByCopy || dyn_cast<LambdaScopeInfo>(FunctionScopes[MaxFunctionScopesIndex])) && \"Only a lambda can capture the enclosing object (referred to by \" \"*this) by copy\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1196, __extension__ __PRETTY_FUNCTION__)); | |||
1197 | // FIXME: We need to delay this marking in PotentiallyPotentiallyEvaluated | |||
1198 | // contexts. | |||
1199 | QualType ThisTy = getCurrentThisType(); | |||
1200 | for (int idx = MaxFunctionScopesIndex; NumCapturingClosures; | |||
1201 | --idx, --NumCapturingClosures) { | |||
1202 | CapturingScopeInfo *CSI = cast<CapturingScopeInfo>(FunctionScopes[idx]); | |||
1203 | Expr *ThisExpr = nullptr; | |||
1204 | ||||
1205 | if (LambdaScopeInfo *LSI = dyn_cast<LambdaScopeInfo>(CSI)) { | |||
1206 | // For lambda expressions, build a field and an initializing expression, | |||
1207 | // and capture the *enclosing object* by copy only if this is the first | |||
1208 | // iteration. | |||
1209 | ThisExpr = captureThis(*this, Context, LSI->Lambda, ThisTy, Loc, | |||
1210 | ByCopy && idx == MaxFunctionScopesIndex); | |||
1211 | ||||
1212 | } else if (CapturedRegionScopeInfo *RSI | |||
1213 | = dyn_cast<CapturedRegionScopeInfo>(FunctionScopes[idx])) | |||
1214 | ThisExpr = | |||
1215 | captureThis(*this, Context, RSI->TheRecordDecl, ThisTy, Loc, | |||
1216 | false/*ByCopy*/); | |||
1217 | ||||
1218 | bool isNested = NumCapturingClosures > 1; | |||
1219 | CSI->addThisCapture(isNested, Loc, ThisExpr, ByCopy); | |||
1220 | } | |||
1221 | return false; | |||
1222 | } | |||
1223 | ||||
1224 | ExprResult Sema::ActOnCXXThis(SourceLocation Loc) { | |||
1225 | /// C++ 9.3.2: In the body of a non-static member function, the keyword this | |||
1226 | /// is a non-lvalue expression whose value is the address of the object for | |||
1227 | /// which the function is called. | |||
1228 | ||||
1229 | QualType ThisTy = getCurrentThisType(); | |||
1230 | if (ThisTy.isNull()) return Diag(Loc, diag::err_invalid_this_use); | |||
1231 | ||||
1232 | CheckCXXThisCapture(Loc); | |||
1233 | return new (Context) CXXThisExpr(Loc, ThisTy, /*isImplicit=*/false); | |||
1234 | } | |||
1235 | ||||
1236 | bool Sema::isThisOutsideMemberFunctionBody(QualType BaseType) { | |||
1237 | // If we're outside the body of a member function, then we'll have a specified | |||
1238 | // type for 'this'. | |||
1239 | if (CXXThisTypeOverride.isNull()) | |||
1240 | return false; | |||
1241 | ||||
1242 | // Determine whether we're looking into a class that's currently being | |||
1243 | // defined. | |||
1244 | CXXRecordDecl *Class = BaseType->getAsCXXRecordDecl(); | |||
1245 | return Class && Class->isBeingDefined(); | |||
1246 | } | |||
1247 | ||||
1248 | /// Parse construction of a specified type. | |||
1249 | /// Can be interpreted either as function-style casting ("int(x)") | |||
1250 | /// or class type construction ("ClassType(x,y,z)") | |||
1251 | /// or creation of a value-initialized type ("int()"). | |||
1252 | ExprResult | |||
1253 | Sema::ActOnCXXTypeConstructExpr(ParsedType TypeRep, | |||
1254 | SourceLocation LParenOrBraceLoc, | |||
1255 | MultiExprArg exprs, | |||
1256 | SourceLocation RParenOrBraceLoc, | |||
1257 | bool ListInitialization) { | |||
1258 | if (!TypeRep) | |||
1259 | return ExprError(); | |||
1260 | ||||
1261 | TypeSourceInfo *TInfo; | |||
1262 | QualType Ty = GetTypeFromParser(TypeRep, &TInfo); | |||
1263 | if (!TInfo) | |||
1264 | TInfo = Context.getTrivialTypeSourceInfo(Ty, SourceLocation()); | |||
1265 | ||||
1266 | auto Result = BuildCXXTypeConstructExpr(TInfo, LParenOrBraceLoc, exprs, | |||
1267 | RParenOrBraceLoc, ListInitialization); | |||
1268 | // Avoid creating a non-type-dependent expression that contains typos. | |||
1269 | // Non-type-dependent expressions are liable to be discarded without | |||
1270 | // checking for embedded typos. | |||
1271 | if (!Result.isInvalid() && Result.get()->isInstantiationDependent() && | |||
1272 | !Result.get()->isTypeDependent()) | |||
1273 | Result = CorrectDelayedTyposInExpr(Result.get()); | |||
1274 | return Result; | |||
1275 | } | |||
1276 | ||||
1277 | ExprResult | |||
1278 | Sema::BuildCXXTypeConstructExpr(TypeSourceInfo *TInfo, | |||
1279 | SourceLocation LParenOrBraceLoc, | |||
1280 | MultiExprArg Exprs, | |||
1281 | SourceLocation RParenOrBraceLoc, | |||
1282 | bool ListInitialization) { | |||
1283 | QualType Ty = TInfo->getType(); | |||
1284 | SourceLocation TyBeginLoc = TInfo->getTypeLoc().getBeginLoc(); | |||
1285 | ||||
1286 | if (Ty->isDependentType() || CallExpr::hasAnyTypeDependentArguments(Exprs)) { | |||
1287 | // FIXME: CXXUnresolvedConstructExpr does not model list-initialization | |||
1288 | // directly. We work around this by dropping the locations of the braces. | |||
1289 | SourceRange Locs = ListInitialization | |||
1290 | ? SourceRange() | |||
1291 | : SourceRange(LParenOrBraceLoc, RParenOrBraceLoc); | |||
1292 | return CXXUnresolvedConstructExpr::Create(Context, TInfo, Locs.getBegin(), | |||
1293 | Exprs, Locs.getEnd()); | |||
1294 | } | |||
1295 | ||||
1296 | assert((!ListInitialization ||(static_cast <bool> ((!ListInitialization || (Exprs.size () == 1 && isa<InitListExpr>(Exprs[0]))) && "List initialization must have initializer list as expression." ) ? void (0) : __assert_fail ("(!ListInitialization || (Exprs.size() == 1 && isa<InitListExpr>(Exprs[0]))) && \"List initialization must have initializer list as expression.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1298, __extension__ __PRETTY_FUNCTION__)) | |||
1297 | (Exprs.size() == 1 && isa<InitListExpr>(Exprs[0]))) &&(static_cast <bool> ((!ListInitialization || (Exprs.size () == 1 && isa<InitListExpr>(Exprs[0]))) && "List initialization must have initializer list as expression." ) ? void (0) : __assert_fail ("(!ListInitialization || (Exprs.size() == 1 && isa<InitListExpr>(Exprs[0]))) && \"List initialization must have initializer list as expression.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1298, __extension__ __PRETTY_FUNCTION__)) | |||
1298 | "List initialization must have initializer list as expression.")(static_cast <bool> ((!ListInitialization || (Exprs.size () == 1 && isa<InitListExpr>(Exprs[0]))) && "List initialization must have initializer list as expression." ) ? void (0) : __assert_fail ("(!ListInitialization || (Exprs.size() == 1 && isa<InitListExpr>(Exprs[0]))) && \"List initialization must have initializer list as expression.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1298, __extension__ __PRETTY_FUNCTION__)); | |||
1299 | SourceRange FullRange = SourceRange(TyBeginLoc, RParenOrBraceLoc); | |||
1300 | ||||
1301 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(TInfo); | |||
1302 | InitializationKind Kind = | |||
1303 | Exprs.size() | |||
1304 | ? ListInitialization | |||
1305 | ? InitializationKind::CreateDirectList( | |||
1306 | TyBeginLoc, LParenOrBraceLoc, RParenOrBraceLoc) | |||
1307 | : InitializationKind::CreateDirect(TyBeginLoc, LParenOrBraceLoc, | |||
1308 | RParenOrBraceLoc) | |||
1309 | : InitializationKind::CreateValue(TyBeginLoc, LParenOrBraceLoc, | |||
1310 | RParenOrBraceLoc); | |||
1311 | ||||
1312 | // C++1z [expr.type.conv]p1: | |||
1313 | // If the type is a placeholder for a deduced class type, [...perform class | |||
1314 | // template argument deduction...] | |||
1315 | DeducedType *Deduced = Ty->getContainedDeducedType(); | |||
1316 | if (Deduced && isa<DeducedTemplateSpecializationType>(Deduced)) { | |||
1317 | Ty = DeduceTemplateSpecializationFromInitializer(TInfo, Entity, | |||
1318 | Kind, Exprs); | |||
1319 | if (Ty.isNull()) | |||
1320 | return ExprError(); | |||
1321 | Entity = InitializedEntity::InitializeTemporary(TInfo, Ty); | |||
1322 | } | |||
1323 | ||||
1324 | // C++ [expr.type.conv]p1: | |||
1325 | // If the expression list is a parenthesized single expression, the type | |||
1326 | // conversion expression is equivalent (in definedness, and if defined in | |||
1327 | // meaning) to the corresponding cast expression. | |||
1328 | if (Exprs.size() == 1 && !ListInitialization && | |||
1329 | !isa<InitListExpr>(Exprs[0])) { | |||
1330 | Expr *Arg = Exprs[0]; | |||
1331 | return BuildCXXFunctionalCastExpr(TInfo, Ty, LParenOrBraceLoc, Arg, | |||
1332 | RParenOrBraceLoc); | |||
1333 | } | |||
1334 | ||||
1335 | // For an expression of the form T(), T shall not be an array type. | |||
1336 | QualType ElemTy = Ty; | |||
1337 | if (Ty->isArrayType()) { | |||
1338 | if (!ListInitialization) | |||
1339 | return ExprError(Diag(TyBeginLoc, diag::err_value_init_for_array_type) | |||
1340 | << FullRange); | |||
1341 | ElemTy = Context.getBaseElementType(Ty); | |||
1342 | } | |||
1343 | ||||
1344 | // There doesn't seem to be an explicit rule against this but sanity demands | |||
1345 | // we only construct objects with object types. | |||
1346 | if (Ty->isFunctionType()) | |||
1347 | return ExprError(Diag(TyBeginLoc, diag::err_init_for_function_type) | |||
1348 | << Ty << FullRange); | |||
1349 | ||||
1350 | // C++17 [expr.type.conv]p2: | |||
1351 | // If the type is cv void and the initializer is (), the expression is a | |||
1352 | // prvalue of the specified type that performs no initialization. | |||
1353 | if (!Ty->isVoidType() && | |||
1354 | RequireCompleteType(TyBeginLoc, ElemTy, | |||
1355 | diag::err_invalid_incomplete_type_use, FullRange)) | |||
1356 | return ExprError(); | |||
1357 | ||||
1358 | // Otherwise, the expression is a prvalue of the specified type whose | |||
1359 | // result object is direct-initialized (11.6) with the initializer. | |||
1360 | InitializationSequence InitSeq(*this, Entity, Kind, Exprs); | |||
1361 | ExprResult Result = InitSeq.Perform(*this, Entity, Kind, Exprs); | |||
1362 | ||||
1363 | if (Result.isInvalid()) | |||
1364 | return Result; | |||
1365 | ||||
1366 | Expr *Inner = Result.get(); | |||
1367 | if (CXXBindTemporaryExpr *BTE = dyn_cast_or_null<CXXBindTemporaryExpr>(Inner)) | |||
1368 | Inner = BTE->getSubExpr(); | |||
1369 | if (!isa<CXXTemporaryObjectExpr>(Inner) && | |||
1370 | !isa<CXXScalarValueInitExpr>(Inner)) { | |||
1371 | // If we created a CXXTemporaryObjectExpr, that node also represents the | |||
1372 | // functional cast. Otherwise, create an explicit cast to represent | |||
1373 | // the syntactic form of a functional-style cast that was used here. | |||
1374 | // | |||
1375 | // FIXME: Creating a CXXFunctionalCastExpr around a CXXConstructExpr | |||
1376 | // would give a more consistent AST representation than using a | |||
1377 | // CXXTemporaryObjectExpr. It's also weird that the functional cast | |||
1378 | // is sometimes handled by initialization and sometimes not. | |||
1379 | QualType ResultType = Result.get()->getType(); | |||
1380 | SourceRange Locs = ListInitialization | |||
1381 | ? SourceRange() | |||
1382 | : SourceRange(LParenOrBraceLoc, RParenOrBraceLoc); | |||
1383 | Result = CXXFunctionalCastExpr::Create( | |||
1384 | Context, ResultType, Expr::getValueKindForType(Ty), TInfo, CK_NoOp, | |||
1385 | Result.get(), /*Path=*/nullptr, Locs.getBegin(), Locs.getEnd()); | |||
1386 | } | |||
1387 | ||||
1388 | return Result; | |||
1389 | } | |||
1390 | ||||
1391 | /// \brief Determine whether the given function is a non-placement | |||
1392 | /// deallocation function. | |||
1393 | static bool isNonPlacementDeallocationFunction(Sema &S, FunctionDecl *FD) { | |||
1394 | if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(FD)) | |||
1395 | return Method->isUsualDeallocationFunction(); | |||
1396 | ||||
1397 | if (FD->getOverloadedOperator() != OO_Delete && | |||
1398 | FD->getOverloadedOperator() != OO_Array_Delete) | |||
1399 | return false; | |||
1400 | ||||
1401 | unsigned UsualParams = 1; | |||
1402 | ||||
1403 | if (S.getLangOpts().SizedDeallocation && UsualParams < FD->getNumParams() && | |||
1404 | S.Context.hasSameUnqualifiedType( | |||
1405 | FD->getParamDecl(UsualParams)->getType(), | |||
1406 | S.Context.getSizeType())) | |||
1407 | ++UsualParams; | |||
1408 | ||||
1409 | if (S.getLangOpts().AlignedAllocation && UsualParams < FD->getNumParams() && | |||
1410 | S.Context.hasSameUnqualifiedType( | |||
1411 | FD->getParamDecl(UsualParams)->getType(), | |||
1412 | S.Context.getTypeDeclType(S.getStdAlignValT()))) | |||
1413 | ++UsualParams; | |||
1414 | ||||
1415 | return UsualParams == FD->getNumParams(); | |||
1416 | } | |||
1417 | ||||
1418 | namespace { | |||
1419 | struct UsualDeallocFnInfo { | |||
1420 | UsualDeallocFnInfo() : Found(), FD(nullptr) {} | |||
1421 | UsualDeallocFnInfo(Sema &S, DeclAccessPair Found) | |||
1422 | : Found(Found), FD(dyn_cast<FunctionDecl>(Found->getUnderlyingDecl())), | |||
1423 | Destroying(false), HasSizeT(false), HasAlignValT(false), | |||
1424 | CUDAPref(Sema::CFP_Native) { | |||
1425 | // A function template declaration is never a usual deallocation function. | |||
1426 | if (!FD) | |||
1427 | return; | |||
1428 | unsigned NumBaseParams = 1; | |||
1429 | if (FD->isDestroyingOperatorDelete()) { | |||
1430 | Destroying = true; | |||
1431 | ++NumBaseParams; | |||
1432 | } | |||
1433 | if (FD->getNumParams() == NumBaseParams + 2) | |||
1434 | HasAlignValT = HasSizeT = true; | |||
1435 | else if (FD->getNumParams() == NumBaseParams + 1) { | |||
1436 | HasSizeT = FD->getParamDecl(NumBaseParams)->getType()->isIntegerType(); | |||
1437 | HasAlignValT = !HasSizeT; | |||
1438 | } | |||
1439 | ||||
1440 | // In CUDA, determine how much we'd like / dislike to call this. | |||
1441 | if (S.getLangOpts().CUDA) | |||
1442 | if (auto *Caller = dyn_cast<FunctionDecl>(S.CurContext)) | |||
1443 | CUDAPref = S.IdentifyCUDAPreference(Caller, FD); | |||
1444 | } | |||
1445 | ||||
1446 | explicit operator bool() const { return FD; } | |||
1447 | ||||
1448 | bool isBetterThan(const UsualDeallocFnInfo &Other, bool WantSize, | |||
1449 | bool WantAlign) const { | |||
1450 | // C++ P0722: | |||
1451 | // A destroying operator delete is preferred over a non-destroying | |||
1452 | // operator delete. | |||
1453 | if (Destroying != Other.Destroying) | |||
1454 | return Destroying; | |||
1455 | ||||
1456 | // C++17 [expr.delete]p10: | |||
1457 | // If the type has new-extended alignment, a function with a parameter | |||
1458 | // of type std::align_val_t is preferred; otherwise a function without | |||
1459 | // such a parameter is preferred | |||
1460 | if (HasAlignValT != Other.HasAlignValT) | |||
1461 | return HasAlignValT == WantAlign; | |||
1462 | ||||
1463 | if (HasSizeT != Other.HasSizeT) | |||
1464 | return HasSizeT == WantSize; | |||
1465 | ||||
1466 | // Use CUDA call preference as a tiebreaker. | |||
1467 | return CUDAPref > Other.CUDAPref; | |||
1468 | } | |||
1469 | ||||
1470 | DeclAccessPair Found; | |||
1471 | FunctionDecl *FD; | |||
1472 | bool Destroying, HasSizeT, HasAlignValT; | |||
1473 | Sema::CUDAFunctionPreference CUDAPref; | |||
1474 | }; | |||
1475 | } | |||
1476 | ||||
1477 | /// Determine whether a type has new-extended alignment. This may be called when | |||
1478 | /// the type is incomplete (for a delete-expression with an incomplete pointee | |||
1479 | /// type), in which case it will conservatively return false if the alignment is | |||
1480 | /// not known. | |||
1481 | static bool hasNewExtendedAlignment(Sema &S, QualType AllocType) { | |||
1482 | return S.getLangOpts().AlignedAllocation && | |||
1483 | S.getASTContext().getTypeAlignIfKnown(AllocType) > | |||
1484 | S.getASTContext().getTargetInfo().getNewAlign(); | |||
1485 | } | |||
1486 | ||||
1487 | /// Select the correct "usual" deallocation function to use from a selection of | |||
1488 | /// deallocation functions (either global or class-scope). | |||
1489 | static UsualDeallocFnInfo resolveDeallocationOverload( | |||
1490 | Sema &S, LookupResult &R, bool WantSize, bool WantAlign, | |||
1491 | llvm::SmallVectorImpl<UsualDeallocFnInfo> *BestFns = nullptr) { | |||
1492 | UsualDeallocFnInfo Best; | |||
1493 | ||||
1494 | for (auto I = R.begin(), E = R.end(); I != E; ++I) { | |||
1495 | UsualDeallocFnInfo Info(S, I.getPair()); | |||
1496 | if (!Info || !isNonPlacementDeallocationFunction(S, Info.FD) || | |||
1497 | Info.CUDAPref == Sema::CFP_Never) | |||
1498 | continue; | |||
1499 | ||||
1500 | if (!Best) { | |||
1501 | Best = Info; | |||
1502 | if (BestFns) | |||
1503 | BestFns->push_back(Info); | |||
1504 | continue; | |||
1505 | } | |||
1506 | ||||
1507 | if (Best.isBetterThan(Info, WantSize, WantAlign)) | |||
1508 | continue; | |||
1509 | ||||
1510 | // If more than one preferred function is found, all non-preferred | |||
1511 | // functions are eliminated from further consideration. | |||
1512 | if (BestFns && Info.isBetterThan(Best, WantSize, WantAlign)) | |||
1513 | BestFns->clear(); | |||
1514 | ||||
1515 | Best = Info; | |||
1516 | if (BestFns) | |||
1517 | BestFns->push_back(Info); | |||
1518 | } | |||
1519 | ||||
1520 | return Best; | |||
1521 | } | |||
1522 | ||||
1523 | /// Determine whether a given type is a class for which 'delete[]' would call | |||
1524 | /// a member 'operator delete[]' with a 'size_t' parameter. This implies that | |||
1525 | /// we need to store the array size (even if the type is | |||
1526 | /// trivially-destructible). | |||
1527 | static bool doesUsualArrayDeleteWantSize(Sema &S, SourceLocation loc, | |||
1528 | QualType allocType) { | |||
1529 | const RecordType *record = | |||
1530 | allocType->getBaseElementTypeUnsafe()->getAs<RecordType>(); | |||
1531 | if (!record) return false; | |||
1532 | ||||
1533 | // Try to find an operator delete[] in class scope. | |||
1534 | ||||
1535 | DeclarationName deleteName = | |||
1536 | S.Context.DeclarationNames.getCXXOperatorName(OO_Array_Delete); | |||
1537 | LookupResult ops(S, deleteName, loc, Sema::LookupOrdinaryName); | |||
1538 | S.LookupQualifiedName(ops, record->getDecl()); | |||
1539 | ||||
1540 | // We're just doing this for information. | |||
1541 | ops.suppressDiagnostics(); | |||
1542 | ||||
1543 | // Very likely: there's no operator delete[]. | |||
1544 | if (ops.empty()) return false; | |||
1545 | ||||
1546 | // If it's ambiguous, it should be illegal to call operator delete[] | |||
1547 | // on this thing, so it doesn't matter if we allocate extra space or not. | |||
1548 | if (ops.isAmbiguous()) return false; | |||
1549 | ||||
1550 | // C++17 [expr.delete]p10: | |||
1551 | // If the deallocation functions have class scope, the one without a | |||
1552 | // parameter of type std::size_t is selected. | |||
1553 | auto Best = resolveDeallocationOverload( | |||
1554 | S, ops, /*WantSize*/false, | |||
1555 | /*WantAlign*/hasNewExtendedAlignment(S, allocType)); | |||
1556 | return Best && Best.HasSizeT; | |||
1557 | } | |||
1558 | ||||
1559 | /// \brief Parsed a C++ 'new' expression (C++ 5.3.4). | |||
1560 | /// | |||
1561 | /// E.g.: | |||
1562 | /// @code new (memory) int[size][4] @endcode | |||
1563 | /// or | |||
1564 | /// @code ::new Foo(23, "hello") @endcode | |||
1565 | /// | |||
1566 | /// \param StartLoc The first location of the expression. | |||
1567 | /// \param UseGlobal True if 'new' was prefixed with '::'. | |||
1568 | /// \param PlacementLParen Opening paren of the placement arguments. | |||
1569 | /// \param PlacementArgs Placement new arguments. | |||
1570 | /// \param PlacementRParen Closing paren of the placement arguments. | |||
1571 | /// \param TypeIdParens If the type is in parens, the source range. | |||
1572 | /// \param D The type to be allocated, as well as array dimensions. | |||
1573 | /// \param Initializer The initializing expression or initializer-list, or null | |||
1574 | /// if there is none. | |||
1575 | ExprResult | |||
1576 | Sema::ActOnCXXNew(SourceLocation StartLoc, bool UseGlobal, | |||
1577 | SourceLocation PlacementLParen, MultiExprArg PlacementArgs, | |||
1578 | SourceLocation PlacementRParen, SourceRange TypeIdParens, | |||
1579 | Declarator &D, Expr *Initializer) { | |||
1580 | Expr *ArraySize = nullptr; | |||
1581 | // If the specified type is an array, unwrap it and save the expression. | |||
1582 | if (D.getNumTypeObjects() > 0 && | |||
1583 | D.getTypeObject(0).Kind == DeclaratorChunk::Array) { | |||
1584 | DeclaratorChunk &Chunk = D.getTypeObject(0); | |||
1585 | if (D.getDeclSpec().hasAutoTypeSpec()) | |||
1586 | return ExprError(Diag(Chunk.Loc, diag::err_new_array_of_auto) | |||
1587 | << D.getSourceRange()); | |||
1588 | if (Chunk.Arr.hasStatic) | |||
1589 | return ExprError(Diag(Chunk.Loc, diag::err_static_illegal_in_new) | |||
1590 | << D.getSourceRange()); | |||
1591 | if (!Chunk.Arr.NumElts) | |||
1592 | return ExprError(Diag(Chunk.Loc, diag::err_array_new_needs_size) | |||
1593 | << D.getSourceRange()); | |||
1594 | ||||
1595 | ArraySize = static_cast<Expr*>(Chunk.Arr.NumElts); | |||
1596 | D.DropFirstTypeObject(); | |||
1597 | } | |||
1598 | ||||
1599 | // Every dimension shall be of constant size. | |||
1600 | if (ArraySize) { | |||
1601 | for (unsigned I = 0, N = D.getNumTypeObjects(); I < N; ++I) { | |||
1602 | if (D.getTypeObject(I).Kind != DeclaratorChunk::Array) | |||
1603 | break; | |||
1604 | ||||
1605 | DeclaratorChunk::ArrayTypeInfo &Array = D.getTypeObject(I).Arr; | |||
1606 | if (Expr *NumElts = (Expr *)Array.NumElts) { | |||
1607 | if (!NumElts->isTypeDependent() && !NumElts->isValueDependent()) { | |||
1608 | if (getLangOpts().CPlusPlus14) { | |||
1609 | // C++1y [expr.new]p6: Every constant-expression in a noptr-new-declarator | |||
1610 | // shall be a converted constant expression (5.19) of type std::size_t | |||
1611 | // and shall evaluate to a strictly positive value. | |||
1612 | unsigned IntWidth = Context.getTargetInfo().getIntWidth(); | |||
1613 | assert(IntWidth && "Builtin type of size 0?")(static_cast <bool> (IntWidth && "Builtin type of size 0?" ) ? void (0) : __assert_fail ("IntWidth && \"Builtin type of size 0?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1613, __extension__ __PRETTY_FUNCTION__)); | |||
1614 | llvm::APSInt Value(IntWidth); | |||
1615 | Array.NumElts | |||
1616 | = CheckConvertedConstantExpression(NumElts, Context.getSizeType(), Value, | |||
1617 | CCEK_NewExpr) | |||
1618 | .get(); | |||
1619 | } else { | |||
1620 | Array.NumElts | |||
1621 | = VerifyIntegerConstantExpression(NumElts, nullptr, | |||
1622 | diag::err_new_array_nonconst) | |||
1623 | .get(); | |||
1624 | } | |||
1625 | if (!Array.NumElts) | |||
1626 | return ExprError(); | |||
1627 | } | |||
1628 | } | |||
1629 | } | |||
1630 | } | |||
1631 | ||||
1632 | TypeSourceInfo *TInfo = GetTypeForDeclarator(D, /*Scope=*/nullptr); | |||
1633 | QualType AllocType = TInfo->getType(); | |||
1634 | if (D.isInvalidType()) | |||
1635 | return ExprError(); | |||
1636 | ||||
1637 | SourceRange DirectInitRange; | |||
1638 | if (ParenListExpr *List = dyn_cast_or_null<ParenListExpr>(Initializer)) | |||
1639 | DirectInitRange = List->getSourceRange(); | |||
1640 | ||||
1641 | return BuildCXXNew(SourceRange(StartLoc, D.getLocEnd()), UseGlobal, | |||
1642 | PlacementLParen, | |||
1643 | PlacementArgs, | |||
1644 | PlacementRParen, | |||
1645 | TypeIdParens, | |||
1646 | AllocType, | |||
1647 | TInfo, | |||
1648 | ArraySize, | |||
1649 | DirectInitRange, | |||
1650 | Initializer); | |||
1651 | } | |||
1652 | ||||
1653 | static bool isLegalArrayNewInitializer(CXXNewExpr::InitializationStyle Style, | |||
1654 | Expr *Init) { | |||
1655 | if (!Init) | |||
1656 | return true; | |||
1657 | if (ParenListExpr *PLE = dyn_cast<ParenListExpr>(Init)) | |||
1658 | return PLE->getNumExprs() == 0; | |||
1659 | if (isa<ImplicitValueInitExpr>(Init)) | |||
1660 | return true; | |||
1661 | else if (CXXConstructExpr *CCE = dyn_cast<CXXConstructExpr>(Init)) | |||
1662 | return !CCE->isListInitialization() && | |||
1663 | CCE->getConstructor()->isDefaultConstructor(); | |||
1664 | else if (Style == CXXNewExpr::ListInit) { | |||
1665 | assert(isa<InitListExpr>(Init) &&(static_cast <bool> (isa<InitListExpr>(Init) && "Shouldn't create list CXXConstructExprs for arrays.") ? void (0) : __assert_fail ("isa<InitListExpr>(Init) && \"Shouldn't create list CXXConstructExprs for arrays.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1666, __extension__ __PRETTY_FUNCTION__)) | |||
1666 | "Shouldn't create list CXXConstructExprs for arrays.")(static_cast <bool> (isa<InitListExpr>(Init) && "Shouldn't create list CXXConstructExprs for arrays.") ? void (0) : __assert_fail ("isa<InitListExpr>(Init) && \"Shouldn't create list CXXConstructExprs for arrays.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1666, __extension__ __PRETTY_FUNCTION__)); | |||
1667 | return true; | |||
1668 | } | |||
1669 | return false; | |||
1670 | } | |||
1671 | ||||
1672 | // Emit a diagnostic if an aligned allocation/deallocation function that is not | |||
1673 | // implemented in the standard library is selected. | |||
1674 | static void diagnoseUnavailableAlignedAllocation(const FunctionDecl &FD, | |||
1675 | SourceLocation Loc, bool IsDelete, | |||
1676 | Sema &S) { | |||
1677 | if (!S.getLangOpts().AlignedAllocationUnavailable) | |||
1678 | return; | |||
1679 | ||||
1680 | // Return if there is a definition. | |||
1681 | if (FD.isDefined()) | |||
1682 | return; | |||
1683 | ||||
1684 | bool IsAligned = false; | |||
1685 | if (FD.isReplaceableGlobalAllocationFunction(&IsAligned) && IsAligned) { | |||
1686 | const llvm::Triple &T = S.getASTContext().getTargetInfo().getTriple(); | |||
1687 | StringRef OSName = AvailabilityAttr::getPlatformNameSourceSpelling( | |||
1688 | S.getASTContext().getTargetInfo().getPlatformName()); | |||
1689 | ||||
1690 | S.Diag(Loc, diag::warn_aligned_allocation_unavailable) | |||
1691 | << IsDelete << FD.getType().getAsString() << OSName | |||
1692 | << alignedAllocMinVersion(T.getOS()).getAsString(); | |||
1693 | S.Diag(Loc, diag::note_silence_unligned_allocation_unavailable); | |||
1694 | } | |||
1695 | } | |||
1696 | ||||
1697 | ExprResult | |||
1698 | Sema::BuildCXXNew(SourceRange Range, bool UseGlobal, | |||
1699 | SourceLocation PlacementLParen, | |||
1700 | MultiExprArg PlacementArgs, | |||
1701 | SourceLocation PlacementRParen, | |||
1702 | SourceRange TypeIdParens, | |||
1703 | QualType AllocType, | |||
1704 | TypeSourceInfo *AllocTypeInfo, | |||
1705 | Expr *ArraySize, | |||
1706 | SourceRange DirectInitRange, | |||
1707 | Expr *Initializer) { | |||
1708 | SourceRange TypeRange = AllocTypeInfo->getTypeLoc().getSourceRange(); | |||
1709 | SourceLocation StartLoc = Range.getBegin(); | |||
1710 | ||||
1711 | CXXNewExpr::InitializationStyle initStyle; | |||
1712 | if (DirectInitRange.isValid()) { | |||
1713 | assert(Initializer && "Have parens but no initializer.")(static_cast <bool> (Initializer && "Have parens but no initializer." ) ? void (0) : __assert_fail ("Initializer && \"Have parens but no initializer.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1713, __extension__ __PRETTY_FUNCTION__)); | |||
1714 | initStyle = CXXNewExpr::CallInit; | |||
1715 | } else if (Initializer && isa<InitListExpr>(Initializer)) | |||
1716 | initStyle = CXXNewExpr::ListInit; | |||
1717 | else { | |||
1718 | assert((!Initializer || isa<ImplicitValueInitExpr>(Initializer) ||(static_cast <bool> ((!Initializer || isa<ImplicitValueInitExpr >(Initializer) || isa<CXXConstructExpr>(Initializer) ) && "Initializer expression that cannot have been implicitly created." ) ? void (0) : __assert_fail ("(!Initializer || isa<ImplicitValueInitExpr>(Initializer) || isa<CXXConstructExpr>(Initializer)) && \"Initializer expression that cannot have been implicitly created.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1720, __extension__ __PRETTY_FUNCTION__)) | |||
1719 | isa<CXXConstructExpr>(Initializer)) &&(static_cast <bool> ((!Initializer || isa<ImplicitValueInitExpr >(Initializer) || isa<CXXConstructExpr>(Initializer) ) && "Initializer expression that cannot have been implicitly created." ) ? void (0) : __assert_fail ("(!Initializer || isa<ImplicitValueInitExpr>(Initializer) || isa<CXXConstructExpr>(Initializer)) && \"Initializer expression that cannot have been implicitly created.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1720, __extension__ __PRETTY_FUNCTION__)) | |||
1720 | "Initializer expression that cannot have been implicitly created.")(static_cast <bool> ((!Initializer || isa<ImplicitValueInitExpr >(Initializer) || isa<CXXConstructExpr>(Initializer) ) && "Initializer expression that cannot have been implicitly created." ) ? void (0) : __assert_fail ("(!Initializer || isa<ImplicitValueInitExpr>(Initializer) || isa<CXXConstructExpr>(Initializer)) && \"Initializer expression that cannot have been implicitly created.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1720, __extension__ __PRETTY_FUNCTION__)); | |||
1721 | initStyle = CXXNewExpr::NoInit; | |||
1722 | } | |||
1723 | ||||
1724 | Expr **Inits = &Initializer; | |||
1725 | unsigned NumInits = Initializer ? 1 : 0; | |||
1726 | if (ParenListExpr *List = dyn_cast_or_null<ParenListExpr>(Initializer)) { | |||
1727 | assert(initStyle == CXXNewExpr::CallInit && "paren init for non-call init")(static_cast <bool> (initStyle == CXXNewExpr::CallInit && "paren init for non-call init") ? void (0) : __assert_fail ( "initStyle == CXXNewExpr::CallInit && \"paren init for non-call init\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1727, __extension__ __PRETTY_FUNCTION__)); | |||
1728 | Inits = List->getExprs(); | |||
1729 | NumInits = List->getNumExprs(); | |||
1730 | } | |||
1731 | ||||
1732 | // C++11 [expr.new]p15: | |||
1733 | // A new-expression that creates an object of type T initializes that | |||
1734 | // object as follows: | |||
1735 | InitializationKind Kind | |||
1736 | // - If the new-initializer is omitted, the object is default- | |||
1737 | // initialized (8.5); if no initialization is performed, | |||
1738 | // the object has indeterminate value | |||
1739 | = initStyle == CXXNewExpr::NoInit | |||
1740 | ? InitializationKind::CreateDefault(TypeRange.getBegin()) | |||
1741 | // - Otherwise, the new-initializer is interpreted according to the | |||
1742 | // initialization rules of 8.5 for direct-initialization. | |||
1743 | : initStyle == CXXNewExpr::ListInit | |||
1744 | ? InitializationKind::CreateDirectList(TypeRange.getBegin(), | |||
1745 | Initializer->getLocStart(), | |||
1746 | Initializer->getLocEnd()) | |||
1747 | : InitializationKind::CreateDirect(TypeRange.getBegin(), | |||
1748 | DirectInitRange.getBegin(), | |||
1749 | DirectInitRange.getEnd()); | |||
1750 | ||||
1751 | // C++11 [dcl.spec.auto]p6. Deduce the type which 'auto' stands in for. | |||
1752 | auto *Deduced = AllocType->getContainedDeducedType(); | |||
1753 | if (Deduced && isa<DeducedTemplateSpecializationType>(Deduced)) { | |||
1754 | if (ArraySize) | |||
1755 | return ExprError(Diag(ArraySize->getExprLoc(), | |||
1756 | diag::err_deduced_class_template_compound_type) | |||
1757 | << /*array*/ 2 << ArraySize->getSourceRange()); | |||
1758 | ||||
1759 | InitializedEntity Entity | |||
1760 | = InitializedEntity::InitializeNew(StartLoc, AllocType); | |||
1761 | AllocType = DeduceTemplateSpecializationFromInitializer( | |||
1762 | AllocTypeInfo, Entity, Kind, MultiExprArg(Inits, NumInits)); | |||
1763 | if (AllocType.isNull()) | |||
1764 | return ExprError(); | |||
1765 | } else if (Deduced) { | |||
1766 | bool Braced = (initStyle == CXXNewExpr::ListInit); | |||
1767 | if (NumInits == 1) { | |||
1768 | if (auto p = dyn_cast_or_null<InitListExpr>(Inits[0])) { | |||
1769 | Inits = p->getInits(); | |||
1770 | NumInits = p->getNumInits(); | |||
1771 | Braced = true; | |||
1772 | } | |||
1773 | } | |||
1774 | ||||
1775 | if (initStyle == CXXNewExpr::NoInit || NumInits == 0) | |||
1776 | return ExprError(Diag(StartLoc, diag::err_auto_new_requires_ctor_arg) | |||
1777 | << AllocType << TypeRange); | |||
1778 | if (NumInits > 1) { | |||
1779 | Expr *FirstBad = Inits[1]; | |||
1780 | return ExprError(Diag(FirstBad->getLocStart(), | |||
1781 | diag::err_auto_new_ctor_multiple_expressions) | |||
1782 | << AllocType << TypeRange); | |||
1783 | } | |||
1784 | if (Braced && !getLangOpts().CPlusPlus17) | |||
1785 | Diag(Initializer->getLocStart(), diag::ext_auto_new_list_init) | |||
1786 | << AllocType << TypeRange; | |||
1787 | Expr *Deduce = Inits[0]; | |||
1788 | QualType DeducedType; | |||
1789 | if (DeduceAutoType(AllocTypeInfo, Deduce, DeducedType) == DAR_Failed) | |||
1790 | return ExprError(Diag(StartLoc, diag::err_auto_new_deduction_failure) | |||
1791 | << AllocType << Deduce->getType() | |||
1792 | << TypeRange << Deduce->getSourceRange()); | |||
1793 | if (DeducedType.isNull()) | |||
1794 | return ExprError(); | |||
1795 | AllocType = DeducedType; | |||
1796 | } | |||
1797 | ||||
1798 | // Per C++0x [expr.new]p5, the type being constructed may be a | |||
1799 | // typedef of an array type. | |||
1800 | if (!ArraySize) { | |||
1801 | if (const ConstantArrayType *Array | |||
1802 | = Context.getAsConstantArrayType(AllocType)) { | |||
1803 | ArraySize = IntegerLiteral::Create(Context, Array->getSize(), | |||
1804 | Context.getSizeType(), | |||
1805 | TypeRange.getEnd()); | |||
1806 | AllocType = Array->getElementType(); | |||
1807 | } | |||
1808 | } | |||
1809 | ||||
1810 | if (CheckAllocatedType(AllocType, TypeRange.getBegin(), TypeRange)) | |||
1811 | return ExprError(); | |||
1812 | ||||
1813 | if (initStyle == CXXNewExpr::ListInit && | |||
1814 | isStdInitializerList(AllocType, nullptr)) { | |||
1815 | Diag(AllocTypeInfo->getTypeLoc().getBeginLoc(), | |||
1816 | diag::warn_dangling_std_initializer_list) | |||
1817 | << /*at end of FE*/0 << Inits[0]->getSourceRange(); | |||
1818 | } | |||
1819 | ||||
1820 | // In ARC, infer 'retaining' for the allocated | |||
1821 | if (getLangOpts().ObjCAutoRefCount && | |||
1822 | AllocType.getObjCLifetime() == Qualifiers::OCL_None && | |||
1823 | AllocType->isObjCLifetimeType()) { | |||
1824 | AllocType = Context.getLifetimeQualifiedType(AllocType, | |||
1825 | AllocType->getObjCARCImplicitLifetime()); | |||
1826 | } | |||
1827 | ||||
1828 | QualType ResultType = Context.getPointerType(AllocType); | |||
1829 | ||||
1830 | if (ArraySize && ArraySize->getType()->isNonOverloadPlaceholderType()) { | |||
1831 | ExprResult result = CheckPlaceholderExpr(ArraySize); | |||
1832 | if (result.isInvalid()) return ExprError(); | |||
1833 | ArraySize = result.get(); | |||
1834 | } | |||
1835 | // C++98 5.3.4p6: "The expression in a direct-new-declarator shall have | |||
1836 | // integral or enumeration type with a non-negative value." | |||
1837 | // C++11 [expr.new]p6: The expression [...] shall be of integral or unscoped | |||
1838 | // enumeration type, or a class type for which a single non-explicit | |||
1839 | // conversion function to integral or unscoped enumeration type exists. | |||
1840 | // C++1y [expr.new]p6: The expression [...] is implicitly converted to | |||
1841 | // std::size_t. | |||
1842 | llvm::Optional<uint64_t> KnownArraySize; | |||
1843 | if (ArraySize && !ArraySize->isTypeDependent()) { | |||
1844 | ExprResult ConvertedSize; | |||
1845 | if (getLangOpts().CPlusPlus14) { | |||
1846 | assert(Context.getTargetInfo().getIntWidth() && "Builtin type of size 0?")(static_cast <bool> (Context.getTargetInfo().getIntWidth () && "Builtin type of size 0?") ? void (0) : __assert_fail ("Context.getTargetInfo().getIntWidth() && \"Builtin type of size 0?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 1846, __extension__ __PRETTY_FUNCTION__)); | |||
1847 | ||||
1848 | ConvertedSize = PerformImplicitConversion(ArraySize, Context.getSizeType(), | |||
1849 | AA_Converting); | |||
1850 | ||||
1851 | if (!ConvertedSize.isInvalid() && | |||
1852 | ArraySize->getType()->getAs<RecordType>()) | |||
1853 | // Diagnose the compatibility of this conversion. | |||
1854 | Diag(StartLoc, diag::warn_cxx98_compat_array_size_conversion) | |||
1855 | << ArraySize->getType() << 0 << "'size_t'"; | |||
1856 | } else { | |||
1857 | class SizeConvertDiagnoser : public ICEConvertDiagnoser { | |||
1858 | protected: | |||
1859 | Expr *ArraySize; | |||
1860 | ||||
1861 | public: | |||
1862 | SizeConvertDiagnoser(Expr *ArraySize) | |||
1863 | : ICEConvertDiagnoser(/*AllowScopedEnumerations*/false, false, false), | |||
1864 | ArraySize(ArraySize) {} | |||
1865 | ||||
1866 | SemaDiagnosticBuilder diagnoseNotInt(Sema &S, SourceLocation Loc, | |||
1867 | QualType T) override { | |||
1868 | return S.Diag(Loc, diag::err_array_size_not_integral) | |||
1869 | << S.getLangOpts().CPlusPlus11 << T; | |||
1870 | } | |||
1871 | ||||
1872 | SemaDiagnosticBuilder diagnoseIncomplete( | |||
1873 | Sema &S, SourceLocation Loc, QualType T) override { | |||
1874 | return S.Diag(Loc, diag::err_array_size_incomplete_type) | |||
1875 | << T << ArraySize->getSourceRange(); | |||
1876 | } | |||
1877 | ||||
1878 | SemaDiagnosticBuilder diagnoseExplicitConv( | |||
1879 | Sema &S, SourceLocation Loc, QualType T, QualType ConvTy) override { | |||
1880 | return S.Diag(Loc, diag::err_array_size_explicit_conversion) << T << ConvTy; | |||
1881 | } | |||
1882 | ||||
1883 | SemaDiagnosticBuilder noteExplicitConv( | |||
1884 | Sema &S, CXXConversionDecl *Conv, QualType ConvTy) override { | |||
1885 | return S.Diag(Conv->getLocation(), diag::note_array_size_conversion) | |||
1886 | << ConvTy->isEnumeralType() << ConvTy; | |||
1887 | } | |||
1888 | ||||
1889 | SemaDiagnosticBuilder diagnoseAmbiguous( | |||
1890 | Sema &S, SourceLocation Loc, QualType T) override { | |||
1891 | return S.Diag(Loc, diag::err_array_size_ambiguous_conversion) << T; | |||
1892 | } | |||
1893 | ||||
1894 | SemaDiagnosticBuilder noteAmbiguous( | |||
1895 | Sema &S, CXXConversionDecl *Conv, QualType ConvTy) override { | |||
1896 | return S.Diag(Conv->getLocation(), diag::note_array_size_conversion) | |||
1897 | << ConvTy->isEnumeralType() << ConvTy; | |||
1898 | } | |||
1899 | ||||
1900 | SemaDiagnosticBuilder diagnoseConversion(Sema &S, SourceLocation Loc, | |||
1901 | QualType T, | |||
1902 | QualType ConvTy) override { | |||
1903 | return S.Diag(Loc, | |||
1904 | S.getLangOpts().CPlusPlus11 | |||
1905 | ? diag::warn_cxx98_compat_array_size_conversion | |||
1906 | : diag::ext_array_size_conversion) | |||
1907 | << T << ConvTy->isEnumeralType() << ConvTy; | |||
1908 | } | |||
1909 | } SizeDiagnoser(ArraySize); | |||
1910 | ||||
1911 | ConvertedSize = PerformContextualImplicitConversion(StartLoc, ArraySize, | |||
1912 | SizeDiagnoser); | |||
1913 | } | |||
1914 | if (ConvertedSize.isInvalid()) | |||
1915 | return ExprError(); | |||
1916 | ||||
1917 | ArraySize = ConvertedSize.get(); | |||
1918 | QualType SizeType = ArraySize->getType(); | |||
1919 | ||||
1920 | if (!SizeType->isIntegralOrUnscopedEnumerationType()) | |||
1921 | return ExprError(); | |||
1922 | ||||
1923 | // C++98 [expr.new]p7: | |||
1924 | // The expression in a direct-new-declarator shall have integral type | |||
1925 | // with a non-negative value. | |||
1926 | // | |||
1927 | // Let's see if this is a constant < 0. If so, we reject it out of hand, | |||
1928 | // per CWG1464. Otherwise, if it's not a constant, we must have an | |||
1929 | // unparenthesized array type. | |||
1930 | if (!ArraySize->isValueDependent()) { | |||
1931 | llvm::APSInt Value; | |||
1932 | // We've already performed any required implicit conversion to integer or | |||
1933 | // unscoped enumeration type. | |||
1934 | // FIXME: Per CWG1464, we are required to check the value prior to | |||
1935 | // converting to size_t. This will never find a negative array size in | |||
1936 | // C++14 onwards, because Value is always unsigned here! | |||
1937 | if (ArraySize->isIntegerConstantExpr(Value, Context)) { | |||
1938 | if (Value.isSigned() && Value.isNegative()) { | |||
1939 | return ExprError(Diag(ArraySize->getLocStart(), | |||
1940 | diag::err_typecheck_negative_array_size) | |||
1941 | << ArraySize->getSourceRange()); | |||
1942 | } | |||
1943 | ||||
1944 | if (!AllocType->isDependentType()) { | |||
1945 | unsigned ActiveSizeBits = | |||
1946 | ConstantArrayType::getNumAddressingBits(Context, AllocType, Value); | |||
1947 | if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) | |||
1948 | return ExprError(Diag(ArraySize->getLocStart(), | |||
1949 | diag::err_array_too_large) | |||
1950 | << Value.toString(10) | |||
1951 | << ArraySize->getSourceRange()); | |||
1952 | } | |||
1953 | ||||
1954 | KnownArraySize = Value.getZExtValue(); | |||
1955 | } else if (TypeIdParens.isValid()) { | |||
1956 | // Can't have dynamic array size when the type-id is in parentheses. | |||
1957 | Diag(ArraySize->getLocStart(), diag::ext_new_paren_array_nonconst) | |||
1958 | << ArraySize->getSourceRange() | |||
1959 | << FixItHint::CreateRemoval(TypeIdParens.getBegin()) | |||
1960 | << FixItHint::CreateRemoval(TypeIdParens.getEnd()); | |||
1961 | ||||
1962 | TypeIdParens = SourceRange(); | |||
1963 | } | |||
1964 | } | |||
1965 | ||||
1966 | // Note that we do *not* convert the argument in any way. It can | |||
1967 | // be signed, larger than size_t, whatever. | |||
1968 | } | |||
1969 | ||||
1970 | FunctionDecl *OperatorNew = nullptr; | |||
1971 | FunctionDecl *OperatorDelete = nullptr; | |||
1972 | unsigned Alignment = | |||
1973 | AllocType->isDependentType() ? 0 : Context.getTypeAlign(AllocType); | |||
1974 | unsigned NewAlignment = Context.getTargetInfo().getNewAlign(); | |||
1975 | bool PassAlignment = getLangOpts().AlignedAllocation && | |||
1976 | Alignment > NewAlignment; | |||
1977 | ||||
1978 | AllocationFunctionScope Scope = UseGlobal ? AFS_Global : AFS_Both; | |||
1979 | if (!AllocType->isDependentType() && | |||
1980 | !Expr::hasAnyTypeDependentArguments(PlacementArgs) && | |||
1981 | FindAllocationFunctions(StartLoc, | |||
1982 | SourceRange(PlacementLParen, PlacementRParen), | |||
1983 | Scope, Scope, AllocType, ArraySize, PassAlignment, | |||
1984 | PlacementArgs, OperatorNew, OperatorDelete)) | |||
1985 | return ExprError(); | |||
1986 | ||||
1987 | // If this is an array allocation, compute whether the usual array | |||
1988 | // deallocation function for the type has a size_t parameter. | |||
1989 | bool UsualArrayDeleteWantsSize = false; | |||
1990 | if (ArraySize && !AllocType->isDependentType()) | |||
1991 | UsualArrayDeleteWantsSize = | |||
1992 | doesUsualArrayDeleteWantSize(*this, StartLoc, AllocType); | |||
1993 | ||||
1994 | SmallVector<Expr *, 8> AllPlaceArgs; | |||
1995 | if (OperatorNew) { | |||
1996 | const FunctionProtoType *Proto = | |||
1997 | OperatorNew->getType()->getAs<FunctionProtoType>(); | |||
1998 | VariadicCallType CallType = Proto->isVariadic() ? VariadicFunction | |||
1999 | : VariadicDoesNotApply; | |||
2000 | ||||
2001 | // We've already converted the placement args, just fill in any default | |||
2002 | // arguments. Skip the first parameter because we don't have a corresponding | |||
2003 | // argument. Skip the second parameter too if we're passing in the | |||
2004 | // alignment; we've already filled it in. | |||
2005 | if (GatherArgumentsForCall(PlacementLParen, OperatorNew, Proto, | |||
2006 | PassAlignment ? 2 : 1, PlacementArgs, | |||
2007 | AllPlaceArgs, CallType)) | |||
2008 | return ExprError(); | |||
2009 | ||||
2010 | if (!AllPlaceArgs.empty()) | |||
2011 | PlacementArgs = AllPlaceArgs; | |||
2012 | ||||
2013 | // FIXME: This is wrong: PlacementArgs misses out the first (size) argument. | |||
2014 | DiagnoseSentinelCalls(OperatorNew, PlacementLParen, PlacementArgs); | |||
2015 | ||||
2016 | // FIXME: Missing call to CheckFunctionCall or equivalent | |||
2017 | ||||
2018 | // Warn if the type is over-aligned and is being allocated by (unaligned) | |||
2019 | // global operator new. | |||
2020 | if (PlacementArgs.empty() && !PassAlignment && | |||
2021 | (OperatorNew->isImplicit() || | |||
2022 | (OperatorNew->getLocStart().isValid() && | |||
2023 | getSourceManager().isInSystemHeader(OperatorNew->getLocStart())))) { | |||
2024 | if (Alignment > NewAlignment) | |||
2025 | Diag(StartLoc, diag::warn_overaligned_type) | |||
2026 | << AllocType | |||
2027 | << unsigned(Alignment / Context.getCharWidth()) | |||
2028 | << unsigned(NewAlignment / Context.getCharWidth()); | |||
2029 | } | |||
2030 | } | |||
2031 | ||||
2032 | // Array 'new' can't have any initializers except empty parentheses. | |||
2033 | // Initializer lists are also allowed, in C++11. Rely on the parser for the | |||
2034 | // dialect distinction. | |||
2035 | if (ArraySize && !isLegalArrayNewInitializer(initStyle, Initializer)) { | |||
2036 | SourceRange InitRange(Inits[0]->getLocStart(), | |||
2037 | Inits[NumInits - 1]->getLocEnd()); | |||
2038 | Diag(StartLoc, diag::err_new_array_init_args) << InitRange; | |||
2039 | return ExprError(); | |||
2040 | } | |||
2041 | ||||
2042 | // If we can perform the initialization, and we've not already done so, | |||
2043 | // do it now. | |||
2044 | if (!AllocType->isDependentType() && | |||
2045 | !Expr::hasAnyTypeDependentArguments( | |||
2046 | llvm::makeArrayRef(Inits, NumInits))) { | |||
2047 | // The type we initialize is the complete type, including the array bound. | |||
2048 | QualType InitType; | |||
2049 | if (KnownArraySize) | |||
2050 | InitType = Context.getConstantArrayType( | |||
2051 | AllocType, llvm::APInt(Context.getTypeSize(Context.getSizeType()), | |||
2052 | *KnownArraySize), | |||
2053 | ArrayType::Normal, 0); | |||
2054 | else if (ArraySize) | |||
2055 | InitType = | |||
2056 | Context.getIncompleteArrayType(AllocType, ArrayType::Normal, 0); | |||
2057 | else | |||
2058 | InitType = AllocType; | |||
2059 | ||||
2060 | InitializedEntity Entity | |||
2061 | = InitializedEntity::InitializeNew(StartLoc, InitType); | |||
2062 | InitializationSequence InitSeq(*this, Entity, Kind, | |||
2063 | MultiExprArg(Inits, NumInits)); | |||
2064 | ExprResult FullInit = InitSeq.Perform(*this, Entity, Kind, | |||
2065 | MultiExprArg(Inits, NumInits)); | |||
2066 | if (FullInit.isInvalid()) | |||
2067 | return ExprError(); | |||
2068 | ||||
2069 | // FullInit is our initializer; strip off CXXBindTemporaryExprs, because | |||
2070 | // we don't want the initialized object to be destructed. | |||
2071 | // FIXME: We should not create these in the first place. | |||
2072 | if (CXXBindTemporaryExpr *Binder = | |||
2073 | dyn_cast_or_null<CXXBindTemporaryExpr>(FullInit.get())) | |||
2074 | FullInit = Binder->getSubExpr(); | |||
2075 | ||||
2076 | Initializer = FullInit.get(); | |||
2077 | } | |||
2078 | ||||
2079 | // Mark the new and delete operators as referenced. | |||
2080 | if (OperatorNew) { | |||
2081 | if (DiagnoseUseOfDecl(OperatorNew, StartLoc)) | |||
2082 | return ExprError(); | |||
2083 | MarkFunctionReferenced(StartLoc, OperatorNew); | |||
2084 | diagnoseUnavailableAlignedAllocation(*OperatorNew, StartLoc, false, *this); | |||
2085 | } | |||
2086 | if (OperatorDelete) { | |||
2087 | if (DiagnoseUseOfDecl(OperatorDelete, StartLoc)) | |||
2088 | return ExprError(); | |||
2089 | MarkFunctionReferenced(StartLoc, OperatorDelete); | |||
2090 | diagnoseUnavailableAlignedAllocation(*OperatorDelete, StartLoc, true, *this); | |||
2091 | } | |||
2092 | ||||
2093 | // C++0x [expr.new]p17: | |||
2094 | // If the new expression creates an array of objects of class type, | |||
2095 | // access and ambiguity control are done for the destructor. | |||
2096 | QualType BaseAllocType = Context.getBaseElementType(AllocType); | |||
2097 | if (ArraySize && !BaseAllocType->isDependentType()) { | |||
2098 | if (const RecordType *BaseRecordType = BaseAllocType->getAs<RecordType>()) { | |||
2099 | if (CXXDestructorDecl *dtor = LookupDestructor( | |||
2100 | cast<CXXRecordDecl>(BaseRecordType->getDecl()))) { | |||
2101 | MarkFunctionReferenced(StartLoc, dtor); | |||
2102 | CheckDestructorAccess(StartLoc, dtor, | |||
2103 | PDiag(diag::err_access_dtor) | |||
2104 | << BaseAllocType); | |||
2105 | if (DiagnoseUseOfDecl(dtor, StartLoc)) | |||
2106 | return ExprError(); | |||
2107 | } | |||
2108 | } | |||
2109 | } | |||
2110 | ||||
2111 | return new (Context) | |||
2112 | CXXNewExpr(Context, UseGlobal, OperatorNew, OperatorDelete, PassAlignment, | |||
2113 | UsualArrayDeleteWantsSize, PlacementArgs, TypeIdParens, | |||
2114 | ArraySize, initStyle, Initializer, ResultType, AllocTypeInfo, | |||
2115 | Range, DirectInitRange); | |||
2116 | } | |||
2117 | ||||
2118 | /// \brief Checks that a type is suitable as the allocated type | |||
2119 | /// in a new-expression. | |||
2120 | bool Sema::CheckAllocatedType(QualType AllocType, SourceLocation Loc, | |||
2121 | SourceRange R) { | |||
2122 | // C++ 5.3.4p1: "[The] type shall be a complete object type, but not an | |||
2123 | // abstract class type or array thereof. | |||
2124 | if (AllocType->isFunctionType()) | |||
2125 | return Diag(Loc, diag::err_bad_new_type) | |||
2126 | << AllocType << 0 << R; | |||
2127 | else if (AllocType->isReferenceType()) | |||
2128 | return Diag(Loc, diag::err_bad_new_type) | |||
2129 | << AllocType << 1 << R; | |||
2130 | else if (!AllocType->isDependentType() && | |||
2131 | RequireCompleteType(Loc, AllocType, diag::err_new_incomplete_type,R)) | |||
2132 | return true; | |||
2133 | else if (RequireNonAbstractType(Loc, AllocType, | |||
2134 | diag::err_allocation_of_abstract_type)) | |||
2135 | return true; | |||
2136 | else if (AllocType->isVariablyModifiedType()) | |||
2137 | return Diag(Loc, diag::err_variably_modified_new_type) | |||
2138 | << AllocType; | |||
2139 | else if (AllocType.getAddressSpace() != LangAS::Default) | |||
2140 | return Diag(Loc, diag::err_address_space_qualified_new) | |||
2141 | << AllocType.getUnqualifiedType() | |||
2142 | << AllocType.getQualifiers().getAddressSpaceAttributePrintValue(); | |||
2143 | else if (getLangOpts().ObjCAutoRefCount) { | |||
2144 | if (const ArrayType *AT = Context.getAsArrayType(AllocType)) { | |||
2145 | QualType BaseAllocType = Context.getBaseElementType(AT); | |||
2146 | if (BaseAllocType.getObjCLifetime() == Qualifiers::OCL_None && | |||
2147 | BaseAllocType->isObjCLifetimeType()) | |||
2148 | return Diag(Loc, diag::err_arc_new_array_without_ownership) | |||
2149 | << BaseAllocType; | |||
2150 | } | |||
2151 | } | |||
2152 | ||||
2153 | return false; | |||
2154 | } | |||
2155 | ||||
2156 | static bool resolveAllocationOverload( | |||
2157 | Sema &S, LookupResult &R, SourceRange Range, SmallVectorImpl<Expr *> &Args, | |||
2158 | bool &PassAlignment, FunctionDecl *&Operator, | |||
2159 | OverloadCandidateSet *AlignedCandidates, Expr *AlignArg, bool Diagnose) { | |||
2160 | OverloadCandidateSet Candidates(R.getNameLoc(), | |||
2161 | OverloadCandidateSet::CSK_Normal); | |||
2162 | for (LookupResult::iterator Alloc = R.begin(), AllocEnd = R.end(); | |||
2163 | Alloc != AllocEnd; ++Alloc) { | |||
2164 | // Even member operator new/delete are implicitly treated as | |||
2165 | // static, so don't use AddMemberCandidate. | |||
2166 | NamedDecl *D = (*Alloc)->getUnderlyingDecl(); | |||
2167 | ||||
2168 | if (FunctionTemplateDecl *FnTemplate = dyn_cast<FunctionTemplateDecl>(D)) { | |||
2169 | S.AddTemplateOverloadCandidate(FnTemplate, Alloc.getPair(), | |||
2170 | /*ExplicitTemplateArgs=*/nullptr, Args, | |||
2171 | Candidates, | |||
2172 | /*SuppressUserConversions=*/false); | |||
2173 | continue; | |||
2174 | } | |||
2175 | ||||
2176 | FunctionDecl *Fn = cast<FunctionDecl>(D); | |||
2177 | S.AddOverloadCandidate(Fn, Alloc.getPair(), Args, Candidates, | |||
2178 | /*SuppressUserConversions=*/false); | |||
2179 | } | |||
2180 | ||||
2181 | // Do the resolution. | |||
2182 | OverloadCandidateSet::iterator Best; | |||
2183 | switch (Candidates.BestViableFunction(S, R.getNameLoc(), Best)) { | |||
2184 | case OR_Success: { | |||
2185 | // Got one! | |||
2186 | FunctionDecl *FnDecl = Best->Function; | |||
2187 | if (S.CheckAllocationAccess(R.getNameLoc(), Range, R.getNamingClass(), | |||
2188 | Best->FoundDecl) == Sema::AR_inaccessible) | |||
2189 | return true; | |||
2190 | ||||
2191 | Operator = FnDecl; | |||
2192 | return false; | |||
2193 | } | |||
2194 | ||||
2195 | case OR_No_Viable_Function: | |||
2196 | // C++17 [expr.new]p13: | |||
2197 | // If no matching function is found and the allocated object type has | |||
2198 | // new-extended alignment, the alignment argument is removed from the | |||
2199 | // argument list, and overload resolution is performed again. | |||
2200 | if (PassAlignment) { | |||
2201 | PassAlignment = false; | |||
2202 | AlignArg = Args[1]; | |||
2203 | Args.erase(Args.begin() + 1); | |||
2204 | return resolveAllocationOverload(S, R, Range, Args, PassAlignment, | |||
2205 | Operator, &Candidates, AlignArg, | |||
2206 | Diagnose); | |||
2207 | } | |||
2208 | ||||
2209 | // MSVC will fall back on trying to find a matching global operator new | |||
2210 | // if operator new[] cannot be found. Also, MSVC will leak by not | |||
2211 | // generating a call to operator delete or operator delete[], but we | |||
2212 | // will not replicate that bug. | |||
2213 | // FIXME: Find out how this interacts with the std::align_val_t fallback | |||
2214 | // once MSVC implements it. | |||
2215 | if (R.getLookupName().getCXXOverloadedOperator() == OO_Array_New && | |||
2216 | S.Context.getLangOpts().MSVCCompat) { | |||
2217 | R.clear(); | |||
2218 | R.setLookupName(S.Context.DeclarationNames.getCXXOperatorName(OO_New)); | |||
2219 | S.LookupQualifiedName(R, S.Context.getTranslationUnitDecl()); | |||
2220 | // FIXME: This will give bad diagnostics pointing at the wrong functions. | |||
2221 | return resolveAllocationOverload(S, R, Range, Args, PassAlignment, | |||
2222 | Operator, /*Candidates=*/nullptr, | |||
2223 | /*AlignArg=*/nullptr, Diagnose); | |||
2224 | } | |||
2225 | ||||
2226 | if (Diagnose) { | |||
2227 | S.Diag(R.getNameLoc(), diag::err_ovl_no_viable_function_in_call) | |||
2228 | << R.getLookupName() << Range; | |||
2229 | ||||
2230 | // If we have aligned candidates, only note the align_val_t candidates | |||
2231 | // from AlignedCandidates and the non-align_val_t candidates from | |||
2232 | // Candidates. | |||
2233 | if (AlignedCandidates) { | |||
2234 | auto IsAligned = [](OverloadCandidate &C) { | |||
2235 | return C.Function->getNumParams() > 1 && | |||
2236 | C.Function->getParamDecl(1)->getType()->isAlignValT(); | |||
2237 | }; | |||
2238 | auto IsUnaligned = [&](OverloadCandidate &C) { return !IsAligned(C); }; | |||
2239 | ||||
2240 | // This was an overaligned allocation, so list the aligned candidates | |||
2241 | // first. | |||
2242 | Args.insert(Args.begin() + 1, AlignArg); | |||
2243 | AlignedCandidates->NoteCandidates(S, OCD_AllCandidates, Args, "", | |||
2244 | R.getNameLoc(), IsAligned); | |||
2245 | Args.erase(Args.begin() + 1); | |||
2246 | Candidates.NoteCandidates(S, OCD_AllCandidates, Args, "", R.getNameLoc(), | |||
2247 | IsUnaligned); | |||
2248 | } else { | |||
2249 | Candidates.NoteCandidates(S, OCD_AllCandidates, Args); | |||
2250 | } | |||
2251 | } | |||
2252 | return true; | |||
2253 | ||||
2254 | case OR_Ambiguous: | |||
2255 | if (Diagnose) { | |||
2256 | S.Diag(R.getNameLoc(), diag::err_ovl_ambiguous_call) | |||
2257 | << R.getLookupName() << Range; | |||
2258 | Candidates.NoteCandidates(S, OCD_ViableCandidates, Args); | |||
2259 | } | |||
2260 | return true; | |||
2261 | ||||
2262 | case OR_Deleted: { | |||
2263 | if (Diagnose) { | |||
2264 | S.Diag(R.getNameLoc(), diag::err_ovl_deleted_call) | |||
2265 | << Best->Function->isDeleted() << R.getLookupName() | |||
2266 | << S.getDeletedOrUnavailableSuffix(Best->Function) << Range; | |||
2267 | Candidates.NoteCandidates(S, OCD_AllCandidates, Args); | |||
2268 | } | |||
2269 | return true; | |||
2270 | } | |||
2271 | } | |||
2272 | llvm_unreachable("Unreachable, bad result from BestViableFunction")::llvm::llvm_unreachable_internal("Unreachable, bad result from BestViableFunction" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2272); | |||
2273 | } | |||
2274 | ||||
2275 | bool Sema::FindAllocationFunctions(SourceLocation StartLoc, SourceRange Range, | |||
2276 | AllocationFunctionScope NewScope, | |||
2277 | AllocationFunctionScope DeleteScope, | |||
2278 | QualType AllocType, bool IsArray, | |||
2279 | bool &PassAlignment, MultiExprArg PlaceArgs, | |||
2280 | FunctionDecl *&OperatorNew, | |||
2281 | FunctionDecl *&OperatorDelete, | |||
2282 | bool Diagnose) { | |||
2283 | // --- Choosing an allocation function --- | |||
2284 | // C++ 5.3.4p8 - 14 & 18 | |||
2285 | // 1) If looking in AFS_Global scope for allocation functions, only look in | |||
2286 | // the global scope. Else, if AFS_Class, only look in the scope of the | |||
2287 | // allocated class. If AFS_Both, look in both. | |||
2288 | // 2) If an array size is given, look for operator new[], else look for | |||
2289 | // operator new. | |||
2290 | // 3) The first argument is always size_t. Append the arguments from the | |||
2291 | // placement form. | |||
2292 | ||||
2293 | SmallVector<Expr*, 8> AllocArgs; | |||
2294 | AllocArgs.reserve((PassAlignment ? 2 : 1) + PlaceArgs.size()); | |||
2295 | ||||
2296 | // We don't care about the actual value of these arguments. | |||
2297 | // FIXME: Should the Sema create the expression and embed it in the syntax | |||
2298 | // tree? Or should the consumer just recalculate the value? | |||
2299 | // FIXME: Using a dummy value will interact poorly with attribute enable_if. | |||
2300 | IntegerLiteral Size(Context, llvm::APInt::getNullValue( | |||
2301 | Context.getTargetInfo().getPointerWidth(0)), | |||
2302 | Context.getSizeType(), | |||
2303 | SourceLocation()); | |||
2304 | AllocArgs.push_back(&Size); | |||
2305 | ||||
2306 | QualType AlignValT = Context.VoidTy; | |||
2307 | if (PassAlignment) { | |||
2308 | DeclareGlobalNewDelete(); | |||
2309 | AlignValT = Context.getTypeDeclType(getStdAlignValT()); | |||
2310 | } | |||
2311 | CXXScalarValueInitExpr Align(AlignValT, nullptr, SourceLocation()); | |||
2312 | if (PassAlignment) | |||
2313 | AllocArgs.push_back(&Align); | |||
2314 | ||||
2315 | AllocArgs.insert(AllocArgs.end(), PlaceArgs.begin(), PlaceArgs.end()); | |||
2316 | ||||
2317 | // C++ [expr.new]p8: | |||
2318 | // If the allocated type is a non-array type, the allocation | |||
2319 | // function's name is operator new and the deallocation function's | |||
2320 | // name is operator delete. If the allocated type is an array | |||
2321 | // type, the allocation function's name is operator new[] and the | |||
2322 | // deallocation function's name is operator delete[]. | |||
2323 | DeclarationName NewName = Context.DeclarationNames.getCXXOperatorName( | |||
2324 | IsArray ? OO_Array_New : OO_New); | |||
2325 | ||||
2326 | QualType AllocElemType = Context.getBaseElementType(AllocType); | |||
2327 | ||||
2328 | // Find the allocation function. | |||
2329 | { | |||
2330 | LookupResult R(*this, NewName, StartLoc, LookupOrdinaryName); | |||
2331 | ||||
2332 | // C++1z [expr.new]p9: | |||
2333 | // If the new-expression begins with a unary :: operator, the allocation | |||
2334 | // function's name is looked up in the global scope. Otherwise, if the | |||
2335 | // allocated type is a class type T or array thereof, the allocation | |||
2336 | // function's name is looked up in the scope of T. | |||
2337 | if (AllocElemType->isRecordType() && NewScope != AFS_Global) | |||
2338 | LookupQualifiedName(R, AllocElemType->getAsCXXRecordDecl()); | |||
2339 | ||||
2340 | // We can see ambiguity here if the allocation function is found in | |||
2341 | // multiple base classes. | |||
2342 | if (R.isAmbiguous()) | |||
2343 | return true; | |||
2344 | ||||
2345 | // If this lookup fails to find the name, or if the allocated type is not | |||
2346 | // a class type, the allocation function's name is looked up in the | |||
2347 | // global scope. | |||
2348 | if (R.empty()) { | |||
2349 | if (NewScope == AFS_Class) | |||
2350 | return true; | |||
2351 | ||||
2352 | LookupQualifiedName(R, Context.getTranslationUnitDecl()); | |||
2353 | } | |||
2354 | ||||
2355 | assert(!R.empty() && "implicitly declared allocation functions not found")(static_cast <bool> (!R.empty() && "implicitly declared allocation functions not found" ) ? void (0) : __assert_fail ("!R.empty() && \"implicitly declared allocation functions not found\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2355, __extension__ __PRETTY_FUNCTION__)); | |||
2356 | assert(!R.isAmbiguous() && "global allocation functions are ambiguous")(static_cast <bool> (!R.isAmbiguous() && "global allocation functions are ambiguous" ) ? void (0) : __assert_fail ("!R.isAmbiguous() && \"global allocation functions are ambiguous\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2356, __extension__ __PRETTY_FUNCTION__)); | |||
2357 | ||||
2358 | // We do our own custom access checks below. | |||
2359 | R.suppressDiagnostics(); | |||
2360 | ||||
2361 | if (resolveAllocationOverload(*this, R, Range, AllocArgs, PassAlignment, | |||
2362 | OperatorNew, /*Candidates=*/nullptr, | |||
2363 | /*AlignArg=*/nullptr, Diagnose)) | |||
2364 | return true; | |||
2365 | } | |||
2366 | ||||
2367 | // We don't need an operator delete if we're running under -fno-exceptions. | |||
2368 | if (!getLangOpts().Exceptions) { | |||
2369 | OperatorDelete = nullptr; | |||
2370 | return false; | |||
2371 | } | |||
2372 | ||||
2373 | // Note, the name of OperatorNew might have been changed from array to | |||
2374 | // non-array by resolveAllocationOverload. | |||
2375 | DeclarationName DeleteName = Context.DeclarationNames.getCXXOperatorName( | |||
2376 | OperatorNew->getDeclName().getCXXOverloadedOperator() == OO_Array_New | |||
2377 | ? OO_Array_Delete | |||
2378 | : OO_Delete); | |||
2379 | ||||
2380 | // C++ [expr.new]p19: | |||
2381 | // | |||
2382 | // If the new-expression begins with a unary :: operator, the | |||
2383 | // deallocation function's name is looked up in the global | |||
2384 | // scope. Otherwise, if the allocated type is a class type T or an | |||
2385 | // array thereof, the deallocation function's name is looked up in | |||
2386 | // the scope of T. If this lookup fails to find the name, or if | |||
2387 | // the allocated type is not a class type or array thereof, the | |||
2388 | // deallocation function's name is looked up in the global scope. | |||
2389 | LookupResult FoundDelete(*this, DeleteName, StartLoc, LookupOrdinaryName); | |||
2390 | if (AllocElemType->isRecordType() && DeleteScope != AFS_Global) { | |||
2391 | CXXRecordDecl *RD | |||
2392 | = cast<CXXRecordDecl>(AllocElemType->getAs<RecordType>()->getDecl()); | |||
2393 | LookupQualifiedName(FoundDelete, RD); | |||
2394 | } | |||
2395 | if (FoundDelete.isAmbiguous()) | |||
2396 | return true; // FIXME: clean up expressions? | |||
2397 | ||||
2398 | bool FoundGlobalDelete = FoundDelete.empty(); | |||
2399 | if (FoundDelete.empty()) { | |||
2400 | if (DeleteScope == AFS_Class) | |||
2401 | return true; | |||
2402 | ||||
2403 | DeclareGlobalNewDelete(); | |||
2404 | LookupQualifiedName(FoundDelete, Context.getTranslationUnitDecl()); | |||
2405 | } | |||
2406 | ||||
2407 | FoundDelete.suppressDiagnostics(); | |||
2408 | ||||
2409 | SmallVector<std::pair<DeclAccessPair,FunctionDecl*>, 2> Matches; | |||
2410 | ||||
2411 | // Whether we're looking for a placement operator delete is dictated | |||
2412 | // by whether we selected a placement operator new, not by whether | |||
2413 | // we had explicit placement arguments. This matters for things like | |||
2414 | // struct A { void *operator new(size_t, int = 0); ... }; | |||
2415 | // A *a = new A() | |||
2416 | // | |||
2417 | // We don't have any definition for what a "placement allocation function" | |||
2418 | // is, but we assume it's any allocation function whose | |||
2419 | // parameter-declaration-clause is anything other than (size_t). | |||
2420 | // | |||
2421 | // FIXME: Should (size_t, std::align_val_t) also be considered non-placement? | |||
2422 | // This affects whether an exception from the constructor of an overaligned | |||
2423 | // type uses the sized or non-sized form of aligned operator delete. | |||
2424 | bool isPlacementNew = !PlaceArgs.empty() || OperatorNew->param_size() != 1 || | |||
2425 | OperatorNew->isVariadic(); | |||
2426 | ||||
2427 | if (isPlacementNew) { | |||
2428 | // C++ [expr.new]p20: | |||
2429 | // A declaration of a placement deallocation function matches the | |||
2430 | // declaration of a placement allocation function if it has the | |||
2431 | // same number of parameters and, after parameter transformations | |||
2432 | // (8.3.5), all parameter types except the first are | |||
2433 | // identical. [...] | |||
2434 | // | |||
2435 | // To perform this comparison, we compute the function type that | |||
2436 | // the deallocation function should have, and use that type both | |||
2437 | // for template argument deduction and for comparison purposes. | |||
2438 | QualType ExpectedFunctionType; | |||
2439 | { | |||
2440 | const FunctionProtoType *Proto | |||
2441 | = OperatorNew->getType()->getAs<FunctionProtoType>(); | |||
2442 | ||||
2443 | SmallVector<QualType, 4> ArgTypes; | |||
2444 | ArgTypes.push_back(Context.VoidPtrTy); | |||
2445 | for (unsigned I = 1, N = Proto->getNumParams(); I < N; ++I) | |||
2446 | ArgTypes.push_back(Proto->getParamType(I)); | |||
2447 | ||||
2448 | FunctionProtoType::ExtProtoInfo EPI; | |||
2449 | // FIXME: This is not part of the standard's rule. | |||
2450 | EPI.Variadic = Proto->isVariadic(); | |||
2451 | ||||
2452 | ExpectedFunctionType | |||
2453 | = Context.getFunctionType(Context.VoidTy, ArgTypes, EPI); | |||
2454 | } | |||
2455 | ||||
2456 | for (LookupResult::iterator D = FoundDelete.begin(), | |||
2457 | DEnd = FoundDelete.end(); | |||
2458 | D != DEnd; ++D) { | |||
2459 | FunctionDecl *Fn = nullptr; | |||
2460 | if (FunctionTemplateDecl *FnTmpl = | |||
2461 | dyn_cast<FunctionTemplateDecl>((*D)->getUnderlyingDecl())) { | |||
2462 | // Perform template argument deduction to try to match the | |||
2463 | // expected function type. | |||
2464 | TemplateDeductionInfo Info(StartLoc); | |||
2465 | if (DeduceTemplateArguments(FnTmpl, nullptr, ExpectedFunctionType, Fn, | |||
2466 | Info)) | |||
2467 | continue; | |||
2468 | } else | |||
2469 | Fn = cast<FunctionDecl>((*D)->getUnderlyingDecl()); | |||
2470 | ||||
2471 | if (Context.hasSameType(adjustCCAndNoReturn(Fn->getType(), | |||
2472 | ExpectedFunctionType, | |||
2473 | /*AdjustExcpetionSpec*/true), | |||
2474 | ExpectedFunctionType)) | |||
2475 | Matches.push_back(std::make_pair(D.getPair(), Fn)); | |||
2476 | } | |||
2477 | ||||
2478 | if (getLangOpts().CUDA) | |||
2479 | EraseUnwantedCUDAMatches(dyn_cast<FunctionDecl>(CurContext), Matches); | |||
2480 | } else { | |||
2481 | // C++1y [expr.new]p22: | |||
2482 | // For a non-placement allocation function, the normal deallocation | |||
2483 | // function lookup is used | |||
2484 | // | |||
2485 | // Per [expr.delete]p10, this lookup prefers a member operator delete | |||
2486 | // without a size_t argument, but prefers a non-member operator delete | |||
2487 | // with a size_t where possible (which it always is in this case). | |||
2488 | llvm::SmallVector<UsualDeallocFnInfo, 4> BestDeallocFns; | |||
2489 | UsualDeallocFnInfo Selected = resolveDeallocationOverload( | |||
2490 | *this, FoundDelete, /*WantSize*/ FoundGlobalDelete, | |||
2491 | /*WantAlign*/ hasNewExtendedAlignment(*this, AllocElemType), | |||
2492 | &BestDeallocFns); | |||
2493 | if (Selected) | |||
2494 | Matches.push_back(std::make_pair(Selected.Found, Selected.FD)); | |||
2495 | else { | |||
2496 | // If we failed to select an operator, all remaining functions are viable | |||
2497 | // but ambiguous. | |||
2498 | for (auto Fn : BestDeallocFns) | |||
2499 | Matches.push_back(std::make_pair(Fn.Found, Fn.FD)); | |||
2500 | } | |||
2501 | } | |||
2502 | ||||
2503 | // C++ [expr.new]p20: | |||
2504 | // [...] If the lookup finds a single matching deallocation | |||
2505 | // function, that function will be called; otherwise, no | |||
2506 | // deallocation function will be called. | |||
2507 | if (Matches.size() == 1) { | |||
2508 | OperatorDelete = Matches[0].second; | |||
2509 | ||||
2510 | // C++1z [expr.new]p23: | |||
2511 | // If the lookup finds a usual deallocation function (3.7.4.2) | |||
2512 | // with a parameter of type std::size_t and that function, considered | |||
2513 | // as a placement deallocation function, would have been | |||
2514 | // selected as a match for the allocation function, the program | |||
2515 | // is ill-formed. | |||
2516 | if (getLangOpts().CPlusPlus11 && isPlacementNew && | |||
2517 | isNonPlacementDeallocationFunction(*this, OperatorDelete)) { | |||
2518 | UsualDeallocFnInfo Info(*this, | |||
2519 | DeclAccessPair::make(OperatorDelete, AS_public)); | |||
2520 | // Core issue, per mail to core reflector, 2016-10-09: | |||
2521 | // If this is a member operator delete, and there is a corresponding | |||
2522 | // non-sized member operator delete, this isn't /really/ a sized | |||
2523 | // deallocation function, it just happens to have a size_t parameter. | |||
2524 | bool IsSizedDelete = Info.HasSizeT; | |||
2525 | if (IsSizedDelete && !FoundGlobalDelete) { | |||
2526 | auto NonSizedDelete = | |||
2527 | resolveDeallocationOverload(*this, FoundDelete, /*WantSize*/false, | |||
2528 | /*WantAlign*/Info.HasAlignValT); | |||
2529 | if (NonSizedDelete && !NonSizedDelete.HasSizeT && | |||
2530 | NonSizedDelete.HasAlignValT == Info.HasAlignValT) | |||
2531 | IsSizedDelete = false; | |||
2532 | } | |||
2533 | ||||
2534 | if (IsSizedDelete) { | |||
2535 | SourceRange R = PlaceArgs.empty() | |||
2536 | ? SourceRange() | |||
2537 | : SourceRange(PlaceArgs.front()->getLocStart(), | |||
2538 | PlaceArgs.back()->getLocEnd()); | |||
2539 | Diag(StartLoc, diag::err_placement_new_non_placement_delete) << R; | |||
2540 | if (!OperatorDelete->isImplicit()) | |||
2541 | Diag(OperatorDelete->getLocation(), diag::note_previous_decl) | |||
2542 | << DeleteName; | |||
2543 | } | |||
2544 | } | |||
2545 | ||||
2546 | CheckAllocationAccess(StartLoc, Range, FoundDelete.getNamingClass(), | |||
2547 | Matches[0].first); | |||
2548 | } else if (!Matches.empty()) { | |||
2549 | // We found multiple suitable operators. Per [expr.new]p20, that means we | |||
2550 | // call no 'operator delete' function, but we should at least warn the user. | |||
2551 | // FIXME: Suppress this warning if the construction cannot throw. | |||
2552 | Diag(StartLoc, diag::warn_ambiguous_suitable_delete_function_found) | |||
2553 | << DeleteName << AllocElemType; | |||
2554 | ||||
2555 | for (auto &Match : Matches) | |||
2556 | Diag(Match.second->getLocation(), | |||
2557 | diag::note_member_declared_here) << DeleteName; | |||
2558 | } | |||
2559 | ||||
2560 | return false; | |||
2561 | } | |||
2562 | ||||
2563 | /// DeclareGlobalNewDelete - Declare the global forms of operator new and | |||
2564 | /// delete. These are: | |||
2565 | /// @code | |||
2566 | /// // C++03: | |||
2567 | /// void* operator new(std::size_t) throw(std::bad_alloc); | |||
2568 | /// void* operator new[](std::size_t) throw(std::bad_alloc); | |||
2569 | /// void operator delete(void *) throw(); | |||
2570 | /// void operator delete[](void *) throw(); | |||
2571 | /// // C++11: | |||
2572 | /// void* operator new(std::size_t); | |||
2573 | /// void* operator new[](std::size_t); | |||
2574 | /// void operator delete(void *) noexcept; | |||
2575 | /// void operator delete[](void *) noexcept; | |||
2576 | /// // C++1y: | |||
2577 | /// void* operator new(std::size_t); | |||
2578 | /// void* operator new[](std::size_t); | |||
2579 | /// void operator delete(void *) noexcept; | |||
2580 | /// void operator delete[](void *) noexcept; | |||
2581 | /// void operator delete(void *, std::size_t) noexcept; | |||
2582 | /// void operator delete[](void *, std::size_t) noexcept; | |||
2583 | /// @endcode | |||
2584 | /// Note that the placement and nothrow forms of new are *not* implicitly | |||
2585 | /// declared. Their use requires including \<new\>. | |||
2586 | void Sema::DeclareGlobalNewDelete() { | |||
2587 | if (GlobalNewDeleteDeclared) | |||
2588 | return; | |||
2589 | ||||
2590 | // C++ [basic.std.dynamic]p2: | |||
2591 | // [...] The following allocation and deallocation functions (18.4) are | |||
2592 | // implicitly declared in global scope in each translation unit of a | |||
2593 | // program | |||
2594 | // | |||
2595 | // C++03: | |||
2596 | // void* operator new(std::size_t) throw(std::bad_alloc); | |||
2597 | // void* operator new[](std::size_t) throw(std::bad_alloc); | |||
2598 | // void operator delete(void*) throw(); | |||
2599 | // void operator delete[](void*) throw(); | |||
2600 | // C++11: | |||
2601 | // void* operator new(std::size_t); | |||
2602 | // void* operator new[](std::size_t); | |||
2603 | // void operator delete(void*) noexcept; | |||
2604 | // void operator delete[](void*) noexcept; | |||
2605 | // C++1y: | |||
2606 | // void* operator new(std::size_t); | |||
2607 | // void* operator new[](std::size_t); | |||
2608 | // void operator delete(void*) noexcept; | |||
2609 | // void operator delete[](void*) noexcept; | |||
2610 | // void operator delete(void*, std::size_t) noexcept; | |||
2611 | // void operator delete[](void*, std::size_t) noexcept; | |||
2612 | // | |||
2613 | // These implicit declarations introduce only the function names operator | |||
2614 | // new, operator new[], operator delete, operator delete[]. | |||
2615 | // | |||
2616 | // Here, we need to refer to std::bad_alloc, so we will implicitly declare | |||
2617 | // "std" or "bad_alloc" as necessary to form the exception specification. | |||
2618 | // However, we do not make these implicit declarations visible to name | |||
2619 | // lookup. | |||
2620 | if (!StdBadAlloc && !getLangOpts().CPlusPlus11) { | |||
2621 | // The "std::bad_alloc" class has not yet been declared, so build it | |||
2622 | // implicitly. | |||
2623 | StdBadAlloc = CXXRecordDecl::Create(Context, TTK_Class, | |||
2624 | getOrCreateStdNamespace(), | |||
2625 | SourceLocation(), SourceLocation(), | |||
2626 | &PP.getIdentifierTable().get("bad_alloc"), | |||
2627 | nullptr); | |||
2628 | getStdBadAlloc()->setImplicit(true); | |||
2629 | } | |||
2630 | if (!StdAlignValT && getLangOpts().AlignedAllocation) { | |||
2631 | // The "std::align_val_t" enum class has not yet been declared, so build it | |||
2632 | // implicitly. | |||
2633 | auto *AlignValT = EnumDecl::Create( | |||
2634 | Context, getOrCreateStdNamespace(), SourceLocation(), SourceLocation(), | |||
2635 | &PP.getIdentifierTable().get("align_val_t"), nullptr, true, true, true); | |||
2636 | AlignValT->setIntegerType(Context.getSizeType()); | |||
2637 | AlignValT->setPromotionType(Context.getSizeType()); | |||
2638 | AlignValT->setImplicit(true); | |||
2639 | StdAlignValT = AlignValT; | |||
2640 | } | |||
2641 | ||||
2642 | GlobalNewDeleteDeclared = true; | |||
2643 | ||||
2644 | QualType VoidPtr = Context.getPointerType(Context.VoidTy); | |||
2645 | QualType SizeT = Context.getSizeType(); | |||
2646 | ||||
2647 | auto DeclareGlobalAllocationFunctions = [&](OverloadedOperatorKind Kind, | |||
2648 | QualType Return, QualType Param) { | |||
2649 | llvm::SmallVector<QualType, 3> Params; | |||
2650 | Params.push_back(Param); | |||
2651 | ||||
2652 | // Create up to four variants of the function (sized/aligned). | |||
2653 | bool HasSizedVariant = getLangOpts().SizedDeallocation && | |||
2654 | (Kind == OO_Delete || Kind == OO_Array_Delete); | |||
2655 | bool HasAlignedVariant = getLangOpts().AlignedAllocation; | |||
2656 | ||||
2657 | int NumSizeVariants = (HasSizedVariant ? 2 : 1); | |||
2658 | int NumAlignVariants = (HasAlignedVariant ? 2 : 1); | |||
2659 | for (int Sized = 0; Sized < NumSizeVariants; ++Sized) { | |||
2660 | if (Sized) | |||
2661 | Params.push_back(SizeT); | |||
2662 | ||||
2663 | for (int Aligned = 0; Aligned < NumAlignVariants; ++Aligned) { | |||
2664 | if (Aligned) | |||
2665 | Params.push_back(Context.getTypeDeclType(getStdAlignValT())); | |||
2666 | ||||
2667 | DeclareGlobalAllocationFunction( | |||
2668 | Context.DeclarationNames.getCXXOperatorName(Kind), Return, Params); | |||
2669 | ||||
2670 | if (Aligned) | |||
2671 | Params.pop_back(); | |||
2672 | } | |||
2673 | } | |||
2674 | }; | |||
2675 | ||||
2676 | DeclareGlobalAllocationFunctions(OO_New, VoidPtr, SizeT); | |||
2677 | DeclareGlobalAllocationFunctions(OO_Array_New, VoidPtr, SizeT); | |||
2678 | DeclareGlobalAllocationFunctions(OO_Delete, Context.VoidTy, VoidPtr); | |||
2679 | DeclareGlobalAllocationFunctions(OO_Array_Delete, Context.VoidTy, VoidPtr); | |||
2680 | } | |||
2681 | ||||
2682 | /// DeclareGlobalAllocationFunction - Declares a single implicit global | |||
2683 | /// allocation function if it doesn't already exist. | |||
2684 | void Sema::DeclareGlobalAllocationFunction(DeclarationName Name, | |||
2685 | QualType Return, | |||
2686 | ArrayRef<QualType> Params) { | |||
2687 | DeclContext *GlobalCtx = Context.getTranslationUnitDecl(); | |||
2688 | ||||
2689 | // Check if this function is already declared. | |||
2690 | DeclContext::lookup_result R = GlobalCtx->lookup(Name); | |||
2691 | for (DeclContext::lookup_iterator Alloc = R.begin(), AllocEnd = R.end(); | |||
2692 | Alloc != AllocEnd; ++Alloc) { | |||
2693 | // Only look at non-template functions, as it is the predefined, | |||
2694 | // non-templated allocation function we are trying to declare here. | |||
2695 | if (FunctionDecl *Func = dyn_cast<FunctionDecl>(*Alloc)) { | |||
2696 | if (Func->getNumParams() == Params.size()) { | |||
2697 | llvm::SmallVector<QualType, 3> FuncParams; | |||
2698 | for (auto *P : Func->parameters()) | |||
2699 | FuncParams.push_back( | |||
2700 | Context.getCanonicalType(P->getType().getUnqualifiedType())); | |||
2701 | if (llvm::makeArrayRef(FuncParams) == Params) { | |||
2702 | // Make the function visible to name lookup, even if we found it in | |||
2703 | // an unimported module. It either is an implicitly-declared global | |||
2704 | // allocation function, or is suppressing that function. | |||
2705 | Func->setVisibleDespiteOwningModule(); | |||
2706 | return; | |||
2707 | } | |||
2708 | } | |||
2709 | } | |||
2710 | } | |||
2711 | ||||
2712 | FunctionProtoType::ExtProtoInfo EPI; | |||
2713 | ||||
2714 | QualType BadAllocType; | |||
2715 | bool HasBadAllocExceptionSpec | |||
2716 | = (Name.getCXXOverloadedOperator() == OO_New || | |||
2717 | Name.getCXXOverloadedOperator() == OO_Array_New); | |||
2718 | if (HasBadAllocExceptionSpec) { | |||
2719 | if (!getLangOpts().CPlusPlus11) { | |||
2720 | BadAllocType = Context.getTypeDeclType(getStdBadAlloc()); | |||
2721 | assert(StdBadAlloc && "Must have std::bad_alloc declared")(static_cast <bool> (StdBadAlloc && "Must have std::bad_alloc declared" ) ? void (0) : __assert_fail ("StdBadAlloc && \"Must have std::bad_alloc declared\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2721, __extension__ __PRETTY_FUNCTION__)); | |||
2722 | EPI.ExceptionSpec.Type = EST_Dynamic; | |||
2723 | EPI.ExceptionSpec.Exceptions = llvm::makeArrayRef(BadAllocType); | |||
2724 | } | |||
2725 | } else { | |||
2726 | EPI.ExceptionSpec = | |||
2727 | getLangOpts().CPlusPlus11 ? EST_BasicNoexcept : EST_DynamicNone; | |||
2728 | } | |||
2729 | ||||
2730 | auto CreateAllocationFunctionDecl = [&](Attr *ExtraAttr) { | |||
2731 | QualType FnType = Context.getFunctionType(Return, Params, EPI); | |||
2732 | FunctionDecl *Alloc = FunctionDecl::Create( | |||
2733 | Context, GlobalCtx, SourceLocation(), SourceLocation(), Name, | |||
2734 | FnType, /*TInfo=*/nullptr, SC_None, false, true); | |||
2735 | Alloc->setImplicit(); | |||
2736 | // Global allocation functions should always be visible. | |||
2737 | Alloc->setVisibleDespiteOwningModule(); | |||
2738 | ||||
2739 | // Implicit sized deallocation functions always have default visibility. | |||
2740 | Alloc->addAttr( | |||
2741 | VisibilityAttr::CreateImplicit(Context, VisibilityAttr::Default)); | |||
| ||||
2742 | ||||
2743 | llvm::SmallVector<ParmVarDecl *, 3> ParamDecls; | |||
2744 | for (QualType T : Params) { | |||
2745 | ParamDecls.push_back(ParmVarDecl::Create( | |||
2746 | Context, Alloc, SourceLocation(), SourceLocation(), nullptr, T, | |||
2747 | /*TInfo=*/nullptr, SC_None, nullptr)); | |||
2748 | ParamDecls.back()->setImplicit(); | |||
2749 | } | |||
2750 | Alloc->setParams(ParamDecls); | |||
2751 | if (ExtraAttr) | |||
2752 | Alloc->addAttr(ExtraAttr); | |||
2753 | Context.getTranslationUnitDecl()->addDecl(Alloc); | |||
2754 | IdResolver.tryAddTopLevelDecl(Alloc, Name); | |||
2755 | }; | |||
2756 | ||||
2757 | if (!LangOpts.CUDA) | |||
2758 | CreateAllocationFunctionDecl(nullptr); | |||
2759 | else { | |||
2760 | // Host and device get their own declaration so each can be | |||
2761 | // defined or re-declared independently. | |||
2762 | CreateAllocationFunctionDecl(CUDAHostAttr::CreateImplicit(Context)); | |||
2763 | CreateAllocationFunctionDecl(CUDADeviceAttr::CreateImplicit(Context)); | |||
2764 | } | |||
2765 | } | |||
2766 | ||||
2767 | FunctionDecl *Sema::FindUsualDeallocationFunction(SourceLocation StartLoc, | |||
2768 | bool CanProvideSize, | |||
2769 | bool Overaligned, | |||
2770 | DeclarationName Name) { | |||
2771 | DeclareGlobalNewDelete(); | |||
2772 | ||||
2773 | LookupResult FoundDelete(*this, Name, StartLoc, LookupOrdinaryName); | |||
2774 | LookupQualifiedName(FoundDelete, Context.getTranslationUnitDecl()); | |||
2775 | ||||
2776 | // FIXME: It's possible for this to result in ambiguity, through a | |||
2777 | // user-declared variadic operator delete or the enable_if attribute. We | |||
2778 | // should probably not consider those cases to be usual deallocation | |||
2779 | // functions. But for now we just make an arbitrary choice in that case. | |||
2780 | auto Result = resolveDeallocationOverload(*this, FoundDelete, CanProvideSize, | |||
2781 | Overaligned); | |||
2782 | assert(Result.FD && "operator delete missing from global scope?")(static_cast <bool> (Result.FD && "operator delete missing from global scope?" ) ? void (0) : __assert_fail ("Result.FD && \"operator delete missing from global scope?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2782, __extension__ __PRETTY_FUNCTION__)); | |||
2783 | return Result.FD; | |||
2784 | } | |||
2785 | ||||
2786 | FunctionDecl *Sema::FindDeallocationFunctionForDestructor(SourceLocation Loc, | |||
2787 | CXXRecordDecl *RD) { | |||
2788 | DeclarationName Name = Context.DeclarationNames.getCXXOperatorName(OO_Delete); | |||
2789 | ||||
2790 | FunctionDecl *OperatorDelete = nullptr; | |||
2791 | if (FindDeallocationFunction(Loc, RD, Name, OperatorDelete)) | |||
2792 | return nullptr; | |||
2793 | if (OperatorDelete) | |||
2794 | return OperatorDelete; | |||
2795 | ||||
2796 | // If there's no class-specific operator delete, look up the global | |||
2797 | // non-array delete. | |||
2798 | return FindUsualDeallocationFunction( | |||
2799 | Loc, true, hasNewExtendedAlignment(*this, Context.getRecordType(RD)), | |||
2800 | Name); | |||
2801 | } | |||
2802 | ||||
2803 | bool Sema::FindDeallocationFunction(SourceLocation StartLoc, CXXRecordDecl *RD, | |||
2804 | DeclarationName Name, | |||
2805 | FunctionDecl *&Operator, bool Diagnose) { | |||
2806 | LookupResult Found(*this, Name, StartLoc, LookupOrdinaryName); | |||
2807 | // Try to find operator delete/operator delete[] in class scope. | |||
2808 | LookupQualifiedName(Found, RD); | |||
2809 | ||||
2810 | if (Found.isAmbiguous()) | |||
2811 | return true; | |||
2812 | ||||
2813 | Found.suppressDiagnostics(); | |||
2814 | ||||
2815 | bool Overaligned = hasNewExtendedAlignment(*this, Context.getRecordType(RD)); | |||
2816 | ||||
2817 | // C++17 [expr.delete]p10: | |||
2818 | // If the deallocation functions have class scope, the one without a | |||
2819 | // parameter of type std::size_t is selected. | |||
2820 | llvm::SmallVector<UsualDeallocFnInfo, 4> Matches; | |||
2821 | resolveDeallocationOverload(*this, Found, /*WantSize*/ false, | |||
2822 | /*WantAlign*/ Overaligned, &Matches); | |||
2823 | ||||
2824 | // If we could find an overload, use it. | |||
2825 | if (Matches.size() == 1) { | |||
2826 | Operator = cast<CXXMethodDecl>(Matches[0].FD); | |||
2827 | ||||
2828 | // FIXME: DiagnoseUseOfDecl? | |||
2829 | if (Operator->isDeleted()) { | |||
2830 | if (Diagnose) { | |||
2831 | Diag(StartLoc, diag::err_deleted_function_use); | |||
2832 | NoteDeletedFunction(Operator); | |||
2833 | } | |||
2834 | return true; | |||
2835 | } | |||
2836 | ||||
2837 | if (CheckAllocationAccess(StartLoc, SourceRange(), Found.getNamingClass(), | |||
2838 | Matches[0].Found, Diagnose) == AR_inaccessible) | |||
2839 | return true; | |||
2840 | ||||
2841 | return false; | |||
2842 | } | |||
2843 | ||||
2844 | // We found multiple suitable operators; complain about the ambiguity. | |||
2845 | // FIXME: The standard doesn't say to do this; it appears that the intent | |||
2846 | // is that this should never happen. | |||
2847 | if (!Matches.empty()) { | |||
2848 | if (Diagnose) { | |||
2849 | Diag(StartLoc, diag::err_ambiguous_suitable_delete_member_function_found) | |||
2850 | << Name << RD; | |||
2851 | for (auto &Match : Matches) | |||
2852 | Diag(Match.FD->getLocation(), diag::note_member_declared_here) << Name; | |||
2853 | } | |||
2854 | return true; | |||
2855 | } | |||
2856 | ||||
2857 | // We did find operator delete/operator delete[] declarations, but | |||
2858 | // none of them were suitable. | |||
2859 | if (!Found.empty()) { | |||
2860 | if (Diagnose) { | |||
2861 | Diag(StartLoc, diag::err_no_suitable_delete_member_function_found) | |||
2862 | << Name << RD; | |||
2863 | ||||
2864 | for (NamedDecl *D : Found) | |||
2865 | Diag(D->getUnderlyingDecl()->getLocation(), | |||
2866 | diag::note_member_declared_here) << Name; | |||
2867 | } | |||
2868 | return true; | |||
2869 | } | |||
2870 | ||||
2871 | Operator = nullptr; | |||
2872 | return false; | |||
2873 | } | |||
2874 | ||||
2875 | namespace { | |||
2876 | /// \brief Checks whether delete-expression, and new-expression used for | |||
2877 | /// initializing deletee have the same array form. | |||
2878 | class MismatchingNewDeleteDetector { | |||
2879 | public: | |||
2880 | enum MismatchResult { | |||
2881 | /// Indicates that there is no mismatch or a mismatch cannot be proven. | |||
2882 | NoMismatch, | |||
2883 | /// Indicates that variable is initialized with mismatching form of \a new. | |||
2884 | VarInitMismatches, | |||
2885 | /// Indicates that member is initialized with mismatching form of \a new. | |||
2886 | MemberInitMismatches, | |||
2887 | /// Indicates that 1 or more constructors' definitions could not been | |||
2888 | /// analyzed, and they will be checked again at the end of translation unit. | |||
2889 | AnalyzeLater | |||
2890 | }; | |||
2891 | ||||
2892 | /// \param EndOfTU True, if this is the final analysis at the end of | |||
2893 | /// translation unit. False, if this is the initial analysis at the point | |||
2894 | /// delete-expression was encountered. | |||
2895 | explicit MismatchingNewDeleteDetector(bool EndOfTU) | |||
2896 | : Field(nullptr), IsArrayForm(false), EndOfTU(EndOfTU), | |||
2897 | HasUndefinedConstructors(false) {} | |||
2898 | ||||
2899 | /// \brief Checks whether pointee of a delete-expression is initialized with | |||
2900 | /// matching form of new-expression. | |||
2901 | /// | |||
2902 | /// If return value is \c VarInitMismatches or \c MemberInitMismatches at the | |||
2903 | /// point where delete-expression is encountered, then a warning will be | |||
2904 | /// issued immediately. If return value is \c AnalyzeLater at the point where | |||
2905 | /// delete-expression is seen, then member will be analyzed at the end of | |||
2906 | /// translation unit. \c AnalyzeLater is returned iff at least one constructor | |||
2907 | /// couldn't be analyzed. If at least one constructor initializes the member | |||
2908 | /// with matching type of new, the return value is \c NoMismatch. | |||
2909 | MismatchResult analyzeDeleteExpr(const CXXDeleteExpr *DE); | |||
2910 | /// \brief Analyzes a class member. | |||
2911 | /// \param Field Class member to analyze. | |||
2912 | /// \param DeleteWasArrayForm Array form-ness of the delete-expression used | |||
2913 | /// for deleting the \p Field. | |||
2914 | MismatchResult analyzeField(FieldDecl *Field, bool DeleteWasArrayForm); | |||
2915 | FieldDecl *Field; | |||
2916 | /// List of mismatching new-expressions used for initialization of the pointee | |||
2917 | llvm::SmallVector<const CXXNewExpr *, 4> NewExprs; | |||
2918 | /// Indicates whether delete-expression was in array form. | |||
2919 | bool IsArrayForm; | |||
2920 | ||||
2921 | private: | |||
2922 | const bool EndOfTU; | |||
2923 | /// \brief Indicates that there is at least one constructor without body. | |||
2924 | bool HasUndefinedConstructors; | |||
2925 | /// \brief Returns \c CXXNewExpr from given initialization expression. | |||
2926 | /// \param E Expression used for initializing pointee in delete-expression. | |||
2927 | /// E can be a single-element \c InitListExpr consisting of new-expression. | |||
2928 | const CXXNewExpr *getNewExprFromInitListOrExpr(const Expr *E); | |||
2929 | /// \brief Returns whether member is initialized with mismatching form of | |||
2930 | /// \c new either by the member initializer or in-class initialization. | |||
2931 | /// | |||
2932 | /// If bodies of all constructors are not visible at the end of translation | |||
2933 | /// unit or at least one constructor initializes member with the matching | |||
2934 | /// form of \c new, mismatch cannot be proven, and this function will return | |||
2935 | /// \c NoMismatch. | |||
2936 | MismatchResult analyzeMemberExpr(const MemberExpr *ME); | |||
2937 | /// \brief Returns whether variable is initialized with mismatching form of | |||
2938 | /// \c new. | |||
2939 | /// | |||
2940 | /// If variable is initialized with matching form of \c new or variable is not | |||
2941 | /// initialized with a \c new expression, this function will return true. | |||
2942 | /// If variable is initialized with mismatching form of \c new, returns false. | |||
2943 | /// \param D Variable to analyze. | |||
2944 | bool hasMatchingVarInit(const DeclRefExpr *D); | |||
2945 | /// \brief Checks whether the constructor initializes pointee with mismatching | |||
2946 | /// form of \c new. | |||
2947 | /// | |||
2948 | /// Returns true, if member is initialized with matching form of \c new in | |||
2949 | /// member initializer list. Returns false, if member is initialized with the | |||
2950 | /// matching form of \c new in this constructor's initializer or given | |||
2951 | /// constructor isn't defined at the point where delete-expression is seen, or | |||
2952 | /// member isn't initialized by the constructor. | |||
2953 | bool hasMatchingNewInCtor(const CXXConstructorDecl *CD); | |||
2954 | /// \brief Checks whether member is initialized with matching form of | |||
2955 | /// \c new in member initializer list. | |||
2956 | bool hasMatchingNewInCtorInit(const CXXCtorInitializer *CI); | |||
2957 | /// Checks whether member is initialized with mismatching form of \c new by | |||
2958 | /// in-class initializer. | |||
2959 | MismatchResult analyzeInClassInitializer(); | |||
2960 | }; | |||
2961 | } | |||
2962 | ||||
2963 | MismatchingNewDeleteDetector::MismatchResult | |||
2964 | MismatchingNewDeleteDetector::analyzeDeleteExpr(const CXXDeleteExpr *DE) { | |||
2965 | NewExprs.clear(); | |||
2966 | assert(DE && "Expected delete-expression")(static_cast <bool> (DE && "Expected delete-expression" ) ? void (0) : __assert_fail ("DE && \"Expected delete-expression\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2966, __extension__ __PRETTY_FUNCTION__)); | |||
2967 | IsArrayForm = DE->isArrayForm(); | |||
2968 | const Expr *E = DE->getArgument()->IgnoreParenImpCasts(); | |||
2969 | if (const MemberExpr *ME = dyn_cast<const MemberExpr>(E)) { | |||
2970 | return analyzeMemberExpr(ME); | |||
2971 | } else if (const DeclRefExpr *D = dyn_cast<const DeclRefExpr>(E)) { | |||
2972 | if (!hasMatchingVarInit(D)) | |||
2973 | return VarInitMismatches; | |||
2974 | } | |||
2975 | return NoMismatch; | |||
2976 | } | |||
2977 | ||||
2978 | const CXXNewExpr * | |||
2979 | MismatchingNewDeleteDetector::getNewExprFromInitListOrExpr(const Expr *E) { | |||
2980 | assert(E != nullptr && "Expected a valid initializer expression")(static_cast <bool> (E != nullptr && "Expected a valid initializer expression" ) ? void (0) : __assert_fail ("E != nullptr && \"Expected a valid initializer expression\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 2980, __extension__ __PRETTY_FUNCTION__)); | |||
2981 | E = E->IgnoreParenImpCasts(); | |||
2982 | if (const InitListExpr *ILE = dyn_cast<const InitListExpr>(E)) { | |||
2983 | if (ILE->getNumInits() == 1) | |||
2984 | E = dyn_cast<const CXXNewExpr>(ILE->getInit(0)->IgnoreParenImpCasts()); | |||
2985 | } | |||
2986 | ||||
2987 | return dyn_cast_or_null<const CXXNewExpr>(E); | |||
2988 | } | |||
2989 | ||||
2990 | bool MismatchingNewDeleteDetector::hasMatchingNewInCtorInit( | |||
2991 | const CXXCtorInitializer *CI) { | |||
2992 | const CXXNewExpr *NE = nullptr; | |||
2993 | if (Field == CI->getMember() && | |||
2994 | (NE = getNewExprFromInitListOrExpr(CI->getInit()))) { | |||
2995 | if (NE->isArray() == IsArrayForm) | |||
2996 | return true; | |||
2997 | else | |||
2998 | NewExprs.push_back(NE); | |||
2999 | } | |||
3000 | return false; | |||
3001 | } | |||
3002 | ||||
3003 | bool MismatchingNewDeleteDetector::hasMatchingNewInCtor( | |||
3004 | const CXXConstructorDecl *CD) { | |||
3005 | if (CD->isImplicit()) | |||
3006 | return false; | |||
3007 | const FunctionDecl *Definition = CD; | |||
3008 | if (!CD->isThisDeclarationADefinition() && !CD->isDefined(Definition)) { | |||
3009 | HasUndefinedConstructors = true; | |||
3010 | return EndOfTU; | |||
3011 | } | |||
3012 | for (const auto *CI : cast<const CXXConstructorDecl>(Definition)->inits()) { | |||
3013 | if (hasMatchingNewInCtorInit(CI)) | |||
3014 | return true; | |||
3015 | } | |||
3016 | return false; | |||
3017 | } | |||
3018 | ||||
3019 | MismatchingNewDeleteDetector::MismatchResult | |||
3020 | MismatchingNewDeleteDetector::analyzeInClassInitializer() { | |||
3021 | assert(Field != nullptr && "This should be called only for members")(static_cast <bool> (Field != nullptr && "This should be called only for members" ) ? void (0) : __assert_fail ("Field != nullptr && \"This should be called only for members\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3021, __extension__ __PRETTY_FUNCTION__)); | |||
3022 | const Expr *InitExpr = Field->getInClassInitializer(); | |||
3023 | if (!InitExpr) | |||
3024 | return EndOfTU ? NoMismatch : AnalyzeLater; | |||
3025 | if (const CXXNewExpr *NE = getNewExprFromInitListOrExpr(InitExpr)) { | |||
3026 | if (NE->isArray() != IsArrayForm) { | |||
3027 | NewExprs.push_back(NE); | |||
3028 | return MemberInitMismatches; | |||
3029 | } | |||
3030 | } | |||
3031 | return NoMismatch; | |||
3032 | } | |||
3033 | ||||
3034 | MismatchingNewDeleteDetector::MismatchResult | |||
3035 | MismatchingNewDeleteDetector::analyzeField(FieldDecl *Field, | |||
3036 | bool DeleteWasArrayForm) { | |||
3037 | assert(Field != nullptr && "Analysis requires a valid class member.")(static_cast <bool> (Field != nullptr && "Analysis requires a valid class member." ) ? void (0) : __assert_fail ("Field != nullptr && \"Analysis requires a valid class member.\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3037, __extension__ __PRETTY_FUNCTION__)); | |||
3038 | this->Field = Field; | |||
3039 | IsArrayForm = DeleteWasArrayForm; | |||
3040 | const CXXRecordDecl *RD = cast<const CXXRecordDecl>(Field->getParent()); | |||
3041 | for (const auto *CD : RD->ctors()) { | |||
3042 | if (hasMatchingNewInCtor(CD)) | |||
3043 | return NoMismatch; | |||
3044 | } | |||
3045 | if (HasUndefinedConstructors) | |||
3046 | return EndOfTU ? NoMismatch : AnalyzeLater; | |||
3047 | if (!NewExprs.empty()) | |||
3048 | return MemberInitMismatches; | |||
3049 | return Field->hasInClassInitializer() ? analyzeInClassInitializer() | |||
3050 | : NoMismatch; | |||
3051 | } | |||
3052 | ||||
3053 | MismatchingNewDeleteDetector::MismatchResult | |||
3054 | MismatchingNewDeleteDetector::analyzeMemberExpr(const MemberExpr *ME) { | |||
3055 | assert(ME != nullptr && "Expected a member expression")(static_cast <bool> (ME != nullptr && "Expected a member expression" ) ? void (0) : __assert_fail ("ME != nullptr && \"Expected a member expression\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3055, __extension__ __PRETTY_FUNCTION__)); | |||
3056 | if (FieldDecl *F = dyn_cast<FieldDecl>(ME->getMemberDecl())) | |||
3057 | return analyzeField(F, IsArrayForm); | |||
3058 | return NoMismatch; | |||
3059 | } | |||
3060 | ||||
3061 | bool MismatchingNewDeleteDetector::hasMatchingVarInit(const DeclRefExpr *D) { | |||
3062 | const CXXNewExpr *NE = nullptr; | |||
3063 | if (const VarDecl *VD = dyn_cast<const VarDecl>(D->getDecl())) { | |||
3064 | if (VD->hasInit() && (NE = getNewExprFromInitListOrExpr(VD->getInit())) && | |||
3065 | NE->isArray() != IsArrayForm) { | |||
3066 | NewExprs.push_back(NE); | |||
3067 | } | |||
3068 | } | |||
3069 | return NewExprs.empty(); | |||
3070 | } | |||
3071 | ||||
3072 | static void | |||
3073 | DiagnoseMismatchedNewDelete(Sema &SemaRef, SourceLocation DeleteLoc, | |||
3074 | const MismatchingNewDeleteDetector &Detector) { | |||
3075 | SourceLocation EndOfDelete = SemaRef.getLocForEndOfToken(DeleteLoc); | |||
3076 | FixItHint H; | |||
3077 | if (!Detector.IsArrayForm) | |||
3078 | H = FixItHint::CreateInsertion(EndOfDelete, "[]"); | |||
3079 | else { | |||
3080 | SourceLocation RSquare = Lexer::findLocationAfterToken( | |||
3081 | DeleteLoc, tok::l_square, SemaRef.getSourceManager(), | |||
3082 | SemaRef.getLangOpts(), true); | |||
3083 | if (RSquare.isValid()) | |||
3084 | H = FixItHint::CreateRemoval(SourceRange(EndOfDelete, RSquare)); | |||
3085 | } | |||
3086 | SemaRef.Diag(DeleteLoc, diag::warn_mismatched_delete_new) | |||
3087 | << Detector.IsArrayForm << H; | |||
3088 | ||||
3089 | for (const auto *NE : Detector.NewExprs) | |||
3090 | SemaRef.Diag(NE->getExprLoc(), diag::note_allocated_here) | |||
3091 | << Detector.IsArrayForm; | |||
3092 | } | |||
3093 | ||||
3094 | void Sema::AnalyzeDeleteExprMismatch(const CXXDeleteExpr *DE) { | |||
3095 | if (Diags.isIgnored(diag::warn_mismatched_delete_new, SourceLocation())) | |||
3096 | return; | |||
3097 | MismatchingNewDeleteDetector Detector(/*EndOfTU=*/false); | |||
3098 | switch (Detector.analyzeDeleteExpr(DE)) { | |||
3099 | case MismatchingNewDeleteDetector::VarInitMismatches: | |||
3100 | case MismatchingNewDeleteDetector::MemberInitMismatches: { | |||
3101 | DiagnoseMismatchedNewDelete(*this, DE->getLocStart(), Detector); | |||
3102 | break; | |||
3103 | } | |||
3104 | case MismatchingNewDeleteDetector::AnalyzeLater: { | |||
3105 | DeleteExprs[Detector.Field].push_back( | |||
3106 | std::make_pair(DE->getLocStart(), DE->isArrayForm())); | |||
3107 | break; | |||
3108 | } | |||
3109 | case MismatchingNewDeleteDetector::NoMismatch: | |||
3110 | break; | |||
3111 | } | |||
3112 | } | |||
3113 | ||||
3114 | void Sema::AnalyzeDeleteExprMismatch(FieldDecl *Field, SourceLocation DeleteLoc, | |||
3115 | bool DeleteWasArrayForm) { | |||
3116 | MismatchingNewDeleteDetector Detector(/*EndOfTU=*/true); | |||
3117 | switch (Detector.analyzeField(Field, DeleteWasArrayForm)) { | |||
3118 | case MismatchingNewDeleteDetector::VarInitMismatches: | |||
3119 | llvm_unreachable("This analysis should have been done for class members.")::llvm::llvm_unreachable_internal("This analysis should have been done for class members." , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3119); | |||
3120 | case MismatchingNewDeleteDetector::AnalyzeLater: | |||
3121 | llvm_unreachable("Analysis cannot be postponed any point beyond end of "::llvm::llvm_unreachable_internal("Analysis cannot be postponed any point beyond end of " "translation unit.", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3122) | |||
3122 | "translation unit.")::llvm::llvm_unreachable_internal("Analysis cannot be postponed any point beyond end of " "translation unit.", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3122); | |||
3123 | case MismatchingNewDeleteDetector::MemberInitMismatches: | |||
3124 | DiagnoseMismatchedNewDelete(*this, DeleteLoc, Detector); | |||
3125 | break; | |||
3126 | case MismatchingNewDeleteDetector::NoMismatch: | |||
3127 | break; | |||
3128 | } | |||
3129 | } | |||
3130 | ||||
3131 | /// ActOnCXXDelete - Parsed a C++ 'delete' expression (C++ 5.3.5), as in: | |||
3132 | /// @code ::delete ptr; @endcode | |||
3133 | /// or | |||
3134 | /// @code delete [] ptr; @endcode | |||
3135 | ExprResult | |||
3136 | Sema::ActOnCXXDelete(SourceLocation StartLoc, bool UseGlobal, | |||
3137 | bool ArrayForm, Expr *ExE) { | |||
3138 | // C++ [expr.delete]p1: | |||
3139 | // The operand shall have a pointer type, or a class type having a single | |||
3140 | // non-explicit conversion function to a pointer type. The result has type | |||
3141 | // void. | |||
3142 | // | |||
3143 | // DR599 amends "pointer type" to "pointer to object type" in both cases. | |||
3144 | ||||
3145 | ExprResult Ex = ExE; | |||
3146 | FunctionDecl *OperatorDelete = nullptr; | |||
3147 | bool ArrayFormAsWritten = ArrayForm; | |||
3148 | bool UsualArrayDeleteWantsSize = false; | |||
3149 | ||||
3150 | if (!Ex.get()->isTypeDependent()) { | |||
3151 | // Perform lvalue-to-rvalue cast, if needed. | |||
3152 | Ex = DefaultLvalueConversion(Ex.get()); | |||
3153 | if (Ex.isInvalid()) | |||
3154 | return ExprError(); | |||
3155 | ||||
3156 | QualType Type = Ex.get()->getType(); | |||
3157 | ||||
3158 | class DeleteConverter : public ContextualImplicitConverter { | |||
3159 | public: | |||
3160 | DeleteConverter() : ContextualImplicitConverter(false, true) {} | |||
3161 | ||||
3162 | bool match(QualType ConvType) override { | |||
3163 | // FIXME: If we have an operator T* and an operator void*, we must pick | |||
3164 | // the operator T*. | |||
3165 | if (const PointerType *ConvPtrType = ConvType->getAs<PointerType>()) | |||
3166 | if (ConvPtrType->getPointeeType()->isIncompleteOrObjectType()) | |||
3167 | return true; | |||
3168 | return false; | |||
3169 | } | |||
3170 | ||||
3171 | SemaDiagnosticBuilder diagnoseNoMatch(Sema &S, SourceLocation Loc, | |||
3172 | QualType T) override { | |||
3173 | return S.Diag(Loc, diag::err_delete_operand) << T; | |||
3174 | } | |||
3175 | ||||
3176 | SemaDiagnosticBuilder diagnoseIncomplete(Sema &S, SourceLocation Loc, | |||
3177 | QualType T) override { | |||
3178 | return S.Diag(Loc, diag::err_delete_incomplete_class_type) << T; | |||
3179 | } | |||
3180 | ||||
3181 | SemaDiagnosticBuilder diagnoseExplicitConv(Sema &S, SourceLocation Loc, | |||
3182 | QualType T, | |||
3183 | QualType ConvTy) override { | |||
3184 | return S.Diag(Loc, diag::err_delete_explicit_conversion) << T << ConvTy; | |||
3185 | } | |||
3186 | ||||
3187 | SemaDiagnosticBuilder noteExplicitConv(Sema &S, CXXConversionDecl *Conv, | |||
3188 | QualType ConvTy) override { | |||
3189 | return S.Diag(Conv->getLocation(), diag::note_delete_conversion) | |||
3190 | << ConvTy; | |||
3191 | } | |||
3192 | ||||
3193 | SemaDiagnosticBuilder diagnoseAmbiguous(Sema &S, SourceLocation Loc, | |||
3194 | QualType T) override { | |||
3195 | return S.Diag(Loc, diag::err_ambiguous_delete_operand) << T; | |||
3196 | } | |||
3197 | ||||
3198 | SemaDiagnosticBuilder noteAmbiguous(Sema &S, CXXConversionDecl *Conv, | |||
3199 | QualType ConvTy) override { | |||
3200 | return S.Diag(Conv->getLocation(), diag::note_delete_conversion) | |||
3201 | << ConvTy; | |||
3202 | } | |||
3203 | ||||
3204 | SemaDiagnosticBuilder diagnoseConversion(Sema &S, SourceLocation Loc, | |||
3205 | QualType T, | |||
3206 | QualType ConvTy) override { | |||
3207 | llvm_unreachable("conversion functions are permitted")::llvm::llvm_unreachable_internal("conversion functions are permitted" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3207); | |||
3208 | } | |||
3209 | } Converter; | |||
3210 | ||||
3211 | Ex = PerformContextualImplicitConversion(StartLoc, Ex.get(), Converter); | |||
3212 | if (Ex.isInvalid()) | |||
3213 | return ExprError(); | |||
3214 | Type = Ex.get()->getType(); | |||
3215 | if (!Converter.match(Type)) | |||
3216 | // FIXME: PerformContextualImplicitConversion should return ExprError | |||
3217 | // itself in this case. | |||
3218 | return ExprError(); | |||
3219 | ||||
3220 | QualType Pointee = Type->getAs<PointerType>()->getPointeeType(); | |||
3221 | QualType PointeeElem = Context.getBaseElementType(Pointee); | |||
3222 | ||||
3223 | if (Pointee.getAddressSpace() != LangAS::Default) | |||
3224 | return Diag(Ex.get()->getLocStart(), | |||
3225 | diag::err_address_space_qualified_delete) | |||
3226 | << Pointee.getUnqualifiedType() | |||
3227 | << Pointee.getQualifiers().getAddressSpaceAttributePrintValue(); | |||
3228 | ||||
3229 | CXXRecordDecl *PointeeRD = nullptr; | |||
3230 | if (Pointee->isVoidType() && !isSFINAEContext()) { | |||
3231 | // The C++ standard bans deleting a pointer to a non-object type, which | |||
3232 | // effectively bans deletion of "void*". However, most compilers support | |||
3233 | // this, so we treat it as a warning unless we're in a SFINAE context. | |||
3234 | Diag(StartLoc, diag::ext_delete_void_ptr_operand) | |||
3235 | << Type << Ex.get()->getSourceRange(); | |||
3236 | } else if (Pointee->isFunctionType() || Pointee->isVoidType()) { | |||
3237 | return ExprError(Diag(StartLoc, diag::err_delete_operand) | |||
3238 | << Type << Ex.get()->getSourceRange()); | |||
3239 | } else if (!Pointee->isDependentType()) { | |||
3240 | // FIXME: This can result in errors if the definition was imported from a | |||
3241 | // module but is hidden. | |||
3242 | if (!RequireCompleteType(StartLoc, Pointee, | |||
3243 | diag::warn_delete_incomplete, Ex.get())) { | |||
3244 | if (const RecordType *RT = PointeeElem->getAs<RecordType>()) | |||
3245 | PointeeRD = cast<CXXRecordDecl>(RT->getDecl()); | |||
3246 | } | |||
3247 | } | |||
3248 | ||||
3249 | if (Pointee->isArrayType() && !ArrayForm) { | |||
3250 | Diag(StartLoc, diag::warn_delete_array_type) | |||
3251 | << Type << Ex.get()->getSourceRange() | |||
3252 | << FixItHint::CreateInsertion(getLocForEndOfToken(StartLoc), "[]"); | |||
3253 | ArrayForm = true; | |||
3254 | } | |||
3255 | ||||
3256 | DeclarationName DeleteName = Context.DeclarationNames.getCXXOperatorName( | |||
3257 | ArrayForm ? OO_Array_Delete : OO_Delete); | |||
3258 | ||||
3259 | if (PointeeRD) { | |||
3260 | if (!UseGlobal && | |||
3261 | FindDeallocationFunction(StartLoc, PointeeRD, DeleteName, | |||
3262 | OperatorDelete)) | |||
3263 | return ExprError(); | |||
3264 | ||||
3265 | // If we're allocating an array of records, check whether the | |||
3266 | // usual operator delete[] has a size_t parameter. | |||
3267 | if (ArrayForm) { | |||
3268 | // If the user specifically asked to use the global allocator, | |||
3269 | // we'll need to do the lookup into the class. | |||
3270 | if (UseGlobal) | |||
3271 | UsualArrayDeleteWantsSize = | |||
3272 | doesUsualArrayDeleteWantSize(*this, StartLoc, PointeeElem); | |||
3273 | ||||
3274 | // Otherwise, the usual operator delete[] should be the | |||
3275 | // function we just found. | |||
3276 | else if (OperatorDelete && isa<CXXMethodDecl>(OperatorDelete)) | |||
3277 | UsualArrayDeleteWantsSize = | |||
3278 | UsualDeallocFnInfo(*this, | |||
3279 | DeclAccessPair::make(OperatorDelete, AS_public)) | |||
3280 | .HasSizeT; | |||
3281 | } | |||
3282 | ||||
3283 | if (!PointeeRD->hasIrrelevantDestructor()) | |||
3284 | if (CXXDestructorDecl *Dtor = LookupDestructor(PointeeRD)) { | |||
3285 | MarkFunctionReferenced(StartLoc, | |||
3286 | const_cast<CXXDestructorDecl*>(Dtor)); | |||
3287 | if (DiagnoseUseOfDecl(Dtor, StartLoc)) | |||
3288 | return ExprError(); | |||
3289 | } | |||
3290 | ||||
3291 | CheckVirtualDtorCall(PointeeRD->getDestructor(), StartLoc, | |||
3292 | /*IsDelete=*/true, /*CallCanBeVirtual=*/true, | |||
3293 | /*WarnOnNonAbstractTypes=*/!ArrayForm, | |||
3294 | SourceLocation()); | |||
3295 | } | |||
3296 | ||||
3297 | if (!OperatorDelete) { | |||
3298 | bool IsComplete = isCompleteType(StartLoc, Pointee); | |||
3299 | bool CanProvideSize = | |||
3300 | IsComplete && (!ArrayForm || UsualArrayDeleteWantsSize || | |||
3301 | Pointee.isDestructedType()); | |||
3302 | bool Overaligned = hasNewExtendedAlignment(*this, Pointee); | |||
3303 | ||||
3304 | // Look for a global declaration. | |||
3305 | OperatorDelete = FindUsualDeallocationFunction(StartLoc, CanProvideSize, | |||
3306 | Overaligned, DeleteName); | |||
3307 | } | |||
3308 | ||||
3309 | MarkFunctionReferenced(StartLoc, OperatorDelete); | |||
3310 | ||||
3311 | // Check access and ambiguity of destructor if we're going to call it. | |||
3312 | // Note that this is required even for a virtual delete. | |||
3313 | bool IsVirtualDelete = false; | |||
3314 | if (PointeeRD) { | |||
3315 | if (CXXDestructorDecl *Dtor = LookupDestructor(PointeeRD)) { | |||
3316 | CheckDestructorAccess(Ex.get()->getExprLoc(), Dtor, | |||
3317 | PDiag(diag::err_access_dtor) << PointeeElem); | |||
3318 | IsVirtualDelete = Dtor->isVirtual(); | |||
3319 | } | |||
3320 | } | |||
3321 | ||||
3322 | diagnoseUnavailableAlignedAllocation(*OperatorDelete, StartLoc, true, | |||
3323 | *this); | |||
3324 | ||||
3325 | // Convert the operand to the type of the first parameter of operator | |||
3326 | // delete. This is only necessary if we selected a destroying operator | |||
3327 | // delete that we are going to call (non-virtually); converting to void* | |||
3328 | // is trivial and left to AST consumers to handle. | |||
3329 | QualType ParamType = OperatorDelete->getParamDecl(0)->getType(); | |||
3330 | if (!IsVirtualDelete && !ParamType->getPointeeType()->isVoidType()) { | |||
3331 | Qualifiers Qs = Pointee.getQualifiers(); | |||
3332 | if (Qs.hasCVRQualifiers()) { | |||
3333 | // Qualifiers are irrelevant to this conversion; we're only looking | |||
3334 | // for access and ambiguity. | |||
3335 | Qs.removeCVRQualifiers(); | |||
3336 | QualType Unqual = Context.getPointerType( | |||
3337 | Context.getQualifiedType(Pointee.getUnqualifiedType(), Qs)); | |||
3338 | Ex = ImpCastExprToType(Ex.get(), Unqual, CK_NoOp); | |||
3339 | } | |||
3340 | Ex = PerformImplicitConversion(Ex.get(), ParamType, AA_Passing); | |||
3341 | if (Ex.isInvalid()) | |||
3342 | return ExprError(); | |||
3343 | } | |||
3344 | } | |||
3345 | ||||
3346 | CXXDeleteExpr *Result = new (Context) CXXDeleteExpr( | |||
3347 | Context.VoidTy, UseGlobal, ArrayForm, ArrayFormAsWritten, | |||
3348 | UsualArrayDeleteWantsSize, OperatorDelete, Ex.get(), StartLoc); | |||
3349 | AnalyzeDeleteExprMismatch(Result); | |||
3350 | return Result; | |||
3351 | } | |||
3352 | ||||
3353 | static bool resolveBuiltinNewDeleteOverload(Sema &S, CallExpr *TheCall, | |||
3354 | bool IsDelete, | |||
3355 | FunctionDecl *&Operator) { | |||
3356 | ||||
3357 | DeclarationName NewName = S.Context.DeclarationNames.getCXXOperatorName( | |||
3358 | IsDelete ? OO_Delete : OO_New); | |||
3359 | ||||
3360 | LookupResult R(S, NewName, TheCall->getLocStart(), Sema::LookupOrdinaryName); | |||
3361 | S.LookupQualifiedName(R, S.Context.getTranslationUnitDecl()); | |||
3362 | assert(!R.empty() && "implicitly declared allocation functions not found")(static_cast <bool> (!R.empty() && "implicitly declared allocation functions not found" ) ? void (0) : __assert_fail ("!R.empty() && \"implicitly declared allocation functions not found\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3362, __extension__ __PRETTY_FUNCTION__)); | |||
3363 | assert(!R.isAmbiguous() && "global allocation functions are ambiguous")(static_cast <bool> (!R.isAmbiguous() && "global allocation functions are ambiguous" ) ? void (0) : __assert_fail ("!R.isAmbiguous() && \"global allocation functions are ambiguous\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3363, __extension__ __PRETTY_FUNCTION__)); | |||
3364 | ||||
3365 | // We do our own custom access checks below. | |||
3366 | R.suppressDiagnostics(); | |||
3367 | ||||
3368 | SmallVector<Expr *, 8> Args(TheCall->arg_begin(), TheCall->arg_end()); | |||
3369 | OverloadCandidateSet Candidates(R.getNameLoc(), | |||
3370 | OverloadCandidateSet::CSK_Normal); | |||
3371 | for (LookupResult::iterator FnOvl = R.begin(), FnOvlEnd = R.end(); | |||
3372 | FnOvl != FnOvlEnd; ++FnOvl) { | |||
3373 | // Even member operator new/delete are implicitly treated as | |||
3374 | // static, so don't use AddMemberCandidate. | |||
3375 | NamedDecl *D = (*FnOvl)->getUnderlyingDecl(); | |||
3376 | ||||
3377 | if (FunctionTemplateDecl *FnTemplate = dyn_cast<FunctionTemplateDecl>(D)) { | |||
3378 | S.AddTemplateOverloadCandidate(FnTemplate, FnOvl.getPair(), | |||
3379 | /*ExplicitTemplateArgs=*/nullptr, Args, | |||
3380 | Candidates, | |||
3381 | /*SuppressUserConversions=*/false); | |||
3382 | continue; | |||
3383 | } | |||
3384 | ||||
3385 | FunctionDecl *Fn = cast<FunctionDecl>(D); | |||
3386 | S.AddOverloadCandidate(Fn, FnOvl.getPair(), Args, Candidates, | |||
3387 | /*SuppressUserConversions=*/false); | |||
3388 | } | |||
3389 | ||||
3390 | SourceRange Range = TheCall->getSourceRange(); | |||
3391 | ||||
3392 | // Do the resolution. | |||
3393 | OverloadCandidateSet::iterator Best; | |||
3394 | switch (Candidates.BestViableFunction(S, R.getNameLoc(), Best)) { | |||
3395 | case OR_Success: { | |||
3396 | // Got one! | |||
3397 | FunctionDecl *FnDecl = Best->Function; | |||
3398 | assert(R.getNamingClass() == nullptr &&(static_cast <bool> (R.getNamingClass() == nullptr && "class members should not be considered") ? void (0) : __assert_fail ("R.getNamingClass() == nullptr && \"class members should not be considered\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3399, __extension__ __PRETTY_FUNCTION__)) | |||
3399 | "class members should not be considered")(static_cast <bool> (R.getNamingClass() == nullptr && "class members should not be considered") ? void (0) : __assert_fail ("R.getNamingClass() == nullptr && \"class members should not be considered\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3399, __extension__ __PRETTY_FUNCTION__)); | |||
3400 | ||||
3401 | if (!FnDecl->isReplaceableGlobalAllocationFunction()) { | |||
3402 | S.Diag(R.getNameLoc(), diag::err_builtin_operator_new_delete_not_usual) | |||
3403 | << (IsDelete ? 1 : 0) << Range; | |||
3404 | S.Diag(FnDecl->getLocation(), diag::note_non_usual_function_declared_here) | |||
3405 | << R.getLookupName() << FnDecl->getSourceRange(); | |||
3406 | return true; | |||
3407 | } | |||
3408 | ||||
3409 | Operator = FnDecl; | |||
3410 | return false; | |||
3411 | } | |||
3412 | ||||
3413 | case OR_No_Viable_Function: | |||
3414 | S.Diag(R.getNameLoc(), diag::err_ovl_no_viable_function_in_call) | |||
3415 | << R.getLookupName() << Range; | |||
3416 | Candidates.NoteCandidates(S, OCD_AllCandidates, Args); | |||
3417 | return true; | |||
3418 | ||||
3419 | case OR_Ambiguous: | |||
3420 | S.Diag(R.getNameLoc(), diag::err_ovl_ambiguous_call) | |||
3421 | << R.getLookupName() << Range; | |||
3422 | Candidates.NoteCandidates(S, OCD_ViableCandidates, Args); | |||
3423 | return true; | |||
3424 | ||||
3425 | case OR_Deleted: { | |||
3426 | S.Diag(R.getNameLoc(), diag::err_ovl_deleted_call) | |||
3427 | << Best->Function->isDeleted() << R.getLookupName() | |||
3428 | << S.getDeletedOrUnavailableSuffix(Best->Function) << Range; | |||
3429 | Candidates.NoteCandidates(S, OCD_AllCandidates, Args); | |||
3430 | return true; | |||
3431 | } | |||
3432 | } | |||
3433 | llvm_unreachable("Unreachable, bad result from BestViableFunction")::llvm::llvm_unreachable_internal("Unreachable, bad result from BestViableFunction" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3433); | |||
3434 | } | |||
3435 | ||||
3436 | ExprResult | |||
3437 | Sema::SemaBuiltinOperatorNewDeleteOverloaded(ExprResult TheCallResult, | |||
3438 | bool IsDelete) { | |||
3439 | CallExpr *TheCall = cast<CallExpr>(TheCallResult.get()); | |||
3440 | if (!getLangOpts().CPlusPlus) { | |||
3441 | Diag(TheCall->getExprLoc(), diag::err_builtin_requires_language) | |||
3442 | << (IsDelete ? "__builtin_operator_delete" : "__builtin_operator_new") | |||
3443 | << "C++"; | |||
3444 | return ExprError(); | |||
3445 | } | |||
3446 | // CodeGen assumes it can find the global new and delete to call, | |||
3447 | // so ensure that they are declared. | |||
3448 | DeclareGlobalNewDelete(); | |||
3449 | ||||
3450 | FunctionDecl *OperatorNewOrDelete = nullptr; | |||
3451 | if (resolveBuiltinNewDeleteOverload(*this, TheCall, IsDelete, | |||
3452 | OperatorNewOrDelete)) | |||
3453 | return ExprError(); | |||
3454 | assert(OperatorNewOrDelete && "should be found")(static_cast <bool> (OperatorNewOrDelete && "should be found" ) ? void (0) : __assert_fail ("OperatorNewOrDelete && \"should be found\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3454, __extension__ __PRETTY_FUNCTION__)); | |||
3455 | ||||
3456 | TheCall->setType(OperatorNewOrDelete->getReturnType()); | |||
3457 | for (unsigned i = 0; i != TheCall->getNumArgs(); ++i) { | |||
3458 | QualType ParamTy = OperatorNewOrDelete->getParamDecl(i)->getType(); | |||
3459 | InitializedEntity Entity = | |||
3460 | InitializedEntity::InitializeParameter(Context, ParamTy, false); | |||
3461 | ExprResult Arg = PerformCopyInitialization( | |||
3462 | Entity, TheCall->getArg(i)->getLocStart(), TheCall->getArg(i)); | |||
3463 | if (Arg.isInvalid()) | |||
3464 | return ExprError(); | |||
3465 | TheCall->setArg(i, Arg.get()); | |||
3466 | } | |||
3467 | auto Callee = dyn_cast<ImplicitCastExpr>(TheCall->getCallee()); | |||
3468 | assert(Callee && Callee->getCastKind() == CK_BuiltinFnToFnPtr &&(static_cast <bool> (Callee && Callee->getCastKind () == CK_BuiltinFnToFnPtr && "Callee expected to be implicit cast to a builtin function pointer" ) ? void (0) : __assert_fail ("Callee && Callee->getCastKind() == CK_BuiltinFnToFnPtr && \"Callee expected to be implicit cast to a builtin function pointer\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3469, __extension__ __PRETTY_FUNCTION__)) | |||
3469 | "Callee expected to be implicit cast to a builtin function pointer")(static_cast <bool> (Callee && Callee->getCastKind () == CK_BuiltinFnToFnPtr && "Callee expected to be implicit cast to a builtin function pointer" ) ? void (0) : __assert_fail ("Callee && Callee->getCastKind() == CK_BuiltinFnToFnPtr && \"Callee expected to be implicit cast to a builtin function pointer\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3469, __extension__ __PRETTY_FUNCTION__)); | |||
3470 | Callee->setType(OperatorNewOrDelete->getType()); | |||
3471 | ||||
3472 | return TheCallResult; | |||
3473 | } | |||
3474 | ||||
3475 | void Sema::CheckVirtualDtorCall(CXXDestructorDecl *dtor, SourceLocation Loc, | |||
3476 | bool IsDelete, bool CallCanBeVirtual, | |||
3477 | bool WarnOnNonAbstractTypes, | |||
3478 | SourceLocation DtorLoc) { | |||
3479 | if (!dtor || dtor->isVirtual() || !CallCanBeVirtual || isUnevaluatedContext()) | |||
3480 | return; | |||
3481 | ||||
3482 | // C++ [expr.delete]p3: | |||
3483 | // In the first alternative (delete object), if the static type of the | |||
3484 | // object to be deleted is different from its dynamic type, the static | |||
3485 | // type shall be a base class of the dynamic type of the object to be | |||
3486 | // deleted and the static type shall have a virtual destructor or the | |||
3487 | // behavior is undefined. | |||
3488 | // | |||
3489 | const CXXRecordDecl *PointeeRD = dtor->getParent(); | |||
3490 | // Note: a final class cannot be derived from, no issue there | |||
3491 | if (!PointeeRD->isPolymorphic() || PointeeRD->hasAttr<FinalAttr>()) | |||
3492 | return; | |||
3493 | ||||
3494 | // If the superclass is in a system header, there's nothing that can be done. | |||
3495 | // The `delete` (where we emit the warning) can be in a system header, | |||
3496 | // what matters for this warning is where the deleted type is defined. | |||
3497 | if (getSourceManager().isInSystemHeader(PointeeRD->getLocation())) | |||
3498 | return; | |||
3499 | ||||
3500 | QualType ClassType = dtor->getThisType(Context)->getPointeeType(); | |||
3501 | if (PointeeRD->isAbstract()) { | |||
3502 | // If the class is abstract, we warn by default, because we're | |||
3503 | // sure the code has undefined behavior. | |||
3504 | Diag(Loc, diag::warn_delete_abstract_non_virtual_dtor) << (IsDelete ? 0 : 1) | |||
3505 | << ClassType; | |||
3506 | } else if (WarnOnNonAbstractTypes) { | |||
3507 | // Otherwise, if this is not an array delete, it's a bit suspect, | |||
3508 | // but not necessarily wrong. | |||
3509 | Diag(Loc, diag::warn_delete_non_virtual_dtor) << (IsDelete ? 0 : 1) | |||
3510 | << ClassType; | |||
3511 | } | |||
3512 | if (!IsDelete) { | |||
3513 | std::string TypeStr; | |||
3514 | ClassType.getAsStringInternal(TypeStr, getPrintingPolicy()); | |||
3515 | Diag(DtorLoc, diag::note_delete_non_virtual) | |||
3516 | << FixItHint::CreateInsertion(DtorLoc, TypeStr + "::"); | |||
3517 | } | |||
3518 | } | |||
3519 | ||||
3520 | Sema::ConditionResult Sema::ActOnConditionVariable(Decl *ConditionVar, | |||
3521 | SourceLocation StmtLoc, | |||
3522 | ConditionKind CK) { | |||
3523 | ExprResult E = | |||
3524 | CheckConditionVariable(cast<VarDecl>(ConditionVar), StmtLoc, CK); | |||
3525 | if (E.isInvalid()) | |||
3526 | return ConditionError(); | |||
3527 | return ConditionResult(*this, ConditionVar, MakeFullExpr(E.get(), StmtLoc), | |||
3528 | CK == ConditionKind::ConstexprIf); | |||
3529 | } | |||
3530 | ||||
3531 | /// \brief Check the use of the given variable as a C++ condition in an if, | |||
3532 | /// while, do-while, or switch statement. | |||
3533 | ExprResult Sema::CheckConditionVariable(VarDecl *ConditionVar, | |||
3534 | SourceLocation StmtLoc, | |||
3535 | ConditionKind CK) { | |||
3536 | if (ConditionVar->isInvalidDecl()) | |||
3537 | return ExprError(); | |||
3538 | ||||
3539 | QualType T = ConditionVar->getType(); | |||
3540 | ||||
3541 | // C++ [stmt.select]p2: | |||
3542 | // The declarator shall not specify a function or an array. | |||
3543 | if (T->isFunctionType()) | |||
3544 | return ExprError(Diag(ConditionVar->getLocation(), | |||
3545 | diag::err_invalid_use_of_function_type) | |||
3546 | << ConditionVar->getSourceRange()); | |||
3547 | else if (T->isArrayType()) | |||
3548 | return ExprError(Diag(ConditionVar->getLocation(), | |||
3549 | diag::err_invalid_use_of_array_type) | |||
3550 | << ConditionVar->getSourceRange()); | |||
3551 | ||||
3552 | ExprResult Condition = DeclRefExpr::Create( | |||
3553 | Context, NestedNameSpecifierLoc(), SourceLocation(), ConditionVar, | |||
3554 | /*enclosing*/ false, ConditionVar->getLocation(), | |||
3555 | ConditionVar->getType().getNonReferenceType(), VK_LValue); | |||
3556 | ||||
3557 | MarkDeclRefReferenced(cast<DeclRefExpr>(Condition.get())); | |||
3558 | ||||
3559 | switch (CK) { | |||
3560 | case ConditionKind::Boolean: | |||
3561 | return CheckBooleanCondition(StmtLoc, Condition.get()); | |||
3562 | ||||
3563 | case ConditionKind::ConstexprIf: | |||
3564 | return CheckBooleanCondition(StmtLoc, Condition.get(), true); | |||
3565 | ||||
3566 | case ConditionKind::Switch: | |||
3567 | return CheckSwitchCondition(StmtLoc, Condition.get()); | |||
3568 | } | |||
3569 | ||||
3570 | llvm_unreachable("unexpected condition kind")::llvm::llvm_unreachable_internal("unexpected condition kind" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3570); | |||
3571 | } | |||
3572 | ||||
3573 | /// CheckCXXBooleanCondition - Returns true if a conversion to bool is invalid. | |||
3574 | ExprResult Sema::CheckCXXBooleanCondition(Expr *CondExpr, bool IsConstexpr) { | |||
3575 | // C++ 6.4p4: | |||
3576 | // The value of a condition that is an initialized declaration in a statement | |||
3577 | // other than a switch statement is the value of the declared variable | |||
3578 | // implicitly converted to type bool. If that conversion is ill-formed, the | |||
3579 | // program is ill-formed. | |||
3580 | // The value of a condition that is an expression is the value of the | |||
3581 | // expression, implicitly converted to bool. | |||
3582 | // | |||
3583 | // FIXME: Return this value to the caller so they don't need to recompute it. | |||
3584 | llvm::APSInt Value(/*BitWidth*/1); | |||
3585 | return (IsConstexpr && !CondExpr->isValueDependent()) | |||
3586 | ? CheckConvertedConstantExpression(CondExpr, Context.BoolTy, Value, | |||
3587 | CCEK_ConstexprIf) | |||
3588 | : PerformContextuallyConvertToBool(CondExpr); | |||
3589 | } | |||
3590 | ||||
3591 | /// Helper function to determine whether this is the (deprecated) C++ | |||
3592 | /// conversion from a string literal to a pointer to non-const char or | |||
3593 | /// non-const wchar_t (for narrow and wide string literals, | |||
3594 | /// respectively). | |||
3595 | bool | |||
3596 | Sema::IsStringLiteralToNonConstPointerConversion(Expr *From, QualType ToType) { | |||
3597 | // Look inside the implicit cast, if it exists. | |||
3598 | if (ImplicitCastExpr *Cast = dyn_cast<ImplicitCastExpr>(From)) | |||
3599 | From = Cast->getSubExpr(); | |||
3600 | ||||
3601 | // A string literal (2.13.4) that is not a wide string literal can | |||
3602 | // be converted to an rvalue of type "pointer to char"; a wide | |||
3603 | // string literal can be converted to an rvalue of type "pointer | |||
3604 | // to wchar_t" (C++ 4.2p2). | |||
3605 | if (StringLiteral *StrLit = dyn_cast<StringLiteral>(From->IgnoreParens())) | |||
3606 | if (const PointerType *ToPtrType = ToType->getAs<PointerType>()) | |||
3607 | if (const BuiltinType *ToPointeeType | |||
3608 | = ToPtrType->getPointeeType()->getAs<BuiltinType>()) { | |||
3609 | // This conversion is considered only when there is an | |||
3610 | // explicit appropriate pointer target type (C++ 4.2p2). | |||
3611 | if (!ToPtrType->getPointeeType().hasQualifiers()) { | |||
3612 | switch (StrLit->getKind()) { | |||
3613 | case StringLiteral::UTF8: | |||
3614 | case StringLiteral::UTF16: | |||
3615 | case StringLiteral::UTF32: | |||
3616 | // We don't allow UTF literals to be implicitly converted | |||
3617 | break; | |||
3618 | case StringLiteral::Ascii: | |||
3619 | return (ToPointeeType->getKind() == BuiltinType::Char_U || | |||
3620 | ToPointeeType->getKind() == BuiltinType::Char_S); | |||
3621 | case StringLiteral::Wide: | |||
3622 | return Context.typesAreCompatible(Context.getWideCharType(), | |||
3623 | QualType(ToPointeeType, 0)); | |||
3624 | } | |||
3625 | } | |||
3626 | } | |||
3627 | ||||
3628 | return false; | |||
3629 | } | |||
3630 | ||||
3631 | static ExprResult BuildCXXCastArgument(Sema &S, | |||
3632 | SourceLocation CastLoc, | |||
3633 | QualType Ty, | |||
3634 | CastKind Kind, | |||
3635 | CXXMethodDecl *Method, | |||
3636 | DeclAccessPair FoundDecl, | |||
3637 | bool HadMultipleCandidates, | |||
3638 | Expr *From) { | |||
3639 | switch (Kind) { | |||
3640 | default: llvm_unreachable("Unhandled cast kind!")::llvm::llvm_unreachable_internal("Unhandled cast kind!", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3640); | |||
3641 | case CK_ConstructorConversion: { | |||
3642 | CXXConstructorDecl *Constructor = cast<CXXConstructorDecl>(Method); | |||
3643 | SmallVector<Expr*, 8> ConstructorArgs; | |||
3644 | ||||
3645 | if (S.RequireNonAbstractType(CastLoc, Ty, | |||
3646 | diag::err_allocation_of_abstract_type)) | |||
3647 | return ExprError(); | |||
3648 | ||||
3649 | if (S.CompleteConstructorCall(Constructor, From, CastLoc, ConstructorArgs)) | |||
3650 | return ExprError(); | |||
3651 | ||||
3652 | S.CheckConstructorAccess(CastLoc, Constructor, FoundDecl, | |||
3653 | InitializedEntity::InitializeTemporary(Ty)); | |||
3654 | if (S.DiagnoseUseOfDecl(Method, CastLoc)) | |||
3655 | return ExprError(); | |||
3656 | ||||
3657 | ExprResult Result = S.BuildCXXConstructExpr( | |||
3658 | CastLoc, Ty, FoundDecl, cast<CXXConstructorDecl>(Method), | |||
3659 | ConstructorArgs, HadMultipleCandidates, | |||
3660 | /*ListInit*/ false, /*StdInitListInit*/ false, /*ZeroInit*/ false, | |||
3661 | CXXConstructExpr::CK_Complete, SourceRange()); | |||
3662 | if (Result.isInvalid()) | |||
3663 | return ExprError(); | |||
3664 | ||||
3665 | return S.MaybeBindToTemporary(Result.getAs<Expr>()); | |||
3666 | } | |||
3667 | ||||
3668 | case CK_UserDefinedConversion: { | |||
3669 | assert(!From->getType()->isPointerType() && "Arg can't have pointer type!")(static_cast <bool> (!From->getType()->isPointerType () && "Arg can't have pointer type!") ? void (0) : __assert_fail ("!From->getType()->isPointerType() && \"Arg can't have pointer type!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3669, __extension__ __PRETTY_FUNCTION__)); | |||
3670 | ||||
3671 | S.CheckMemberOperatorAccess(CastLoc, From, /*arg*/ nullptr, FoundDecl); | |||
3672 | if (S.DiagnoseUseOfDecl(Method, CastLoc)) | |||
3673 | return ExprError(); | |||
3674 | ||||
3675 | // Create an implicit call expr that calls it. | |||
3676 | CXXConversionDecl *Conv = cast<CXXConversionDecl>(Method); | |||
3677 | ExprResult Result = S.BuildCXXMemberCallExpr(From, FoundDecl, Conv, | |||
3678 | HadMultipleCandidates); | |||
3679 | if (Result.isInvalid()) | |||
3680 | return ExprError(); | |||
3681 | // Record usage of conversion in an implicit cast. | |||
3682 | Result = ImplicitCastExpr::Create(S.Context, Result.get()->getType(), | |||
3683 | CK_UserDefinedConversion, Result.get(), | |||
3684 | nullptr, Result.get()->getValueKind()); | |||
3685 | ||||
3686 | return S.MaybeBindToTemporary(Result.get()); | |||
3687 | } | |||
3688 | } | |||
3689 | } | |||
3690 | ||||
3691 | /// PerformImplicitConversion - Perform an implicit conversion of the | |||
3692 | /// expression From to the type ToType using the pre-computed implicit | |||
3693 | /// conversion sequence ICS. Returns the converted | |||
3694 | /// expression. Action is the kind of conversion we're performing, | |||
3695 | /// used in the error message. | |||
3696 | ExprResult | |||
3697 | Sema::PerformImplicitConversion(Expr *From, QualType ToType, | |||
3698 | const ImplicitConversionSequence &ICS, | |||
3699 | AssignmentAction Action, | |||
3700 | CheckedConversionKind CCK) { | |||
3701 | switch (ICS.getKind()) { | |||
3702 | case ImplicitConversionSequence::StandardConversion: { | |||
3703 | ExprResult Res = PerformImplicitConversion(From, ToType, ICS.Standard, | |||
3704 | Action, CCK); | |||
3705 | if (Res.isInvalid()) | |||
3706 | return ExprError(); | |||
3707 | From = Res.get(); | |||
3708 | break; | |||
3709 | } | |||
3710 | ||||
3711 | case ImplicitConversionSequence::UserDefinedConversion: { | |||
3712 | ||||
3713 | FunctionDecl *FD = ICS.UserDefined.ConversionFunction; | |||
3714 | CastKind CastKind; | |||
3715 | QualType BeforeToType; | |||
3716 | assert(FD && "no conversion function for user-defined conversion seq")(static_cast <bool> (FD && "no conversion function for user-defined conversion seq" ) ? void (0) : __assert_fail ("FD && \"no conversion function for user-defined conversion seq\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3716, __extension__ __PRETTY_FUNCTION__)); | |||
3717 | if (const CXXConversionDecl *Conv = dyn_cast<CXXConversionDecl>(FD)) { | |||
3718 | CastKind = CK_UserDefinedConversion; | |||
3719 | ||||
3720 | // If the user-defined conversion is specified by a conversion function, | |||
3721 | // the initial standard conversion sequence converts the source type to | |||
3722 | // the implicit object parameter of the conversion function. | |||
3723 | BeforeToType = Context.getTagDeclType(Conv->getParent()); | |||
3724 | } else { | |||
3725 | const CXXConstructorDecl *Ctor = cast<CXXConstructorDecl>(FD); | |||
3726 | CastKind = CK_ConstructorConversion; | |||
3727 | // Do no conversion if dealing with ... for the first conversion. | |||
3728 | if (!ICS.UserDefined.EllipsisConversion) { | |||
3729 | // If the user-defined conversion is specified by a constructor, the | |||
3730 | // initial standard conversion sequence converts the source type to | |||
3731 | // the type required by the argument of the constructor | |||
3732 | BeforeToType = Ctor->getParamDecl(0)->getType().getNonReferenceType(); | |||
3733 | } | |||
3734 | } | |||
3735 | // Watch out for ellipsis conversion. | |||
3736 | if (!ICS.UserDefined.EllipsisConversion) { | |||
3737 | ExprResult Res = | |||
3738 | PerformImplicitConversion(From, BeforeToType, | |||
3739 | ICS.UserDefined.Before, AA_Converting, | |||
3740 | CCK); | |||
3741 | if (Res.isInvalid()) | |||
3742 | return ExprError(); | |||
3743 | From = Res.get(); | |||
3744 | } | |||
3745 | ||||
3746 | ExprResult CastArg | |||
3747 | = BuildCXXCastArgument(*this, | |||
3748 | From->getLocStart(), | |||
3749 | ToType.getNonReferenceType(), | |||
3750 | CastKind, cast<CXXMethodDecl>(FD), | |||
3751 | ICS.UserDefined.FoundConversionFunction, | |||
3752 | ICS.UserDefined.HadMultipleCandidates, | |||
3753 | From); | |||
3754 | ||||
3755 | if (CastArg.isInvalid()) | |||
3756 | return ExprError(); | |||
3757 | ||||
3758 | From = CastArg.get(); | |||
3759 | ||||
3760 | return PerformImplicitConversion(From, ToType, ICS.UserDefined.After, | |||
3761 | AA_Converting, CCK); | |||
3762 | } | |||
3763 | ||||
3764 | case ImplicitConversionSequence::AmbiguousConversion: | |||
3765 | ICS.DiagnoseAmbiguousConversion(*this, From->getExprLoc(), | |||
3766 | PDiag(diag::err_typecheck_ambiguous_condition) | |||
3767 | << From->getSourceRange()); | |||
3768 | return ExprError(); | |||
3769 | ||||
3770 | case ImplicitConversionSequence::EllipsisConversion: | |||
3771 | llvm_unreachable("Cannot perform an ellipsis conversion")::llvm::llvm_unreachable_internal("Cannot perform an ellipsis conversion" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3771); | |||
3772 | ||||
3773 | case ImplicitConversionSequence::BadConversion: | |||
3774 | bool Diagnosed = | |||
3775 | DiagnoseAssignmentResult(Incompatible, From->getExprLoc(), ToType, | |||
3776 | From->getType(), From, Action); | |||
3777 | assert(Diagnosed && "failed to diagnose bad conversion")(static_cast <bool> (Diagnosed && "failed to diagnose bad conversion" ) ? void (0) : __assert_fail ("Diagnosed && \"failed to diagnose bad conversion\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3777, __extension__ __PRETTY_FUNCTION__)); (void)Diagnosed; | |||
3778 | return ExprError(); | |||
3779 | } | |||
3780 | ||||
3781 | // Everything went well. | |||
3782 | return From; | |||
3783 | } | |||
3784 | ||||
3785 | /// PerformImplicitConversion - Perform an implicit conversion of the | |||
3786 | /// expression From to the type ToType by following the standard | |||
3787 | /// conversion sequence SCS. Returns the converted | |||
3788 | /// expression. Flavor is the context in which we're performing this | |||
3789 | /// conversion, for use in error messages. | |||
3790 | ExprResult | |||
3791 | Sema::PerformImplicitConversion(Expr *From, QualType ToType, | |||
3792 | const StandardConversionSequence& SCS, | |||
3793 | AssignmentAction Action, | |||
3794 | CheckedConversionKind CCK) { | |||
3795 | bool CStyle = (CCK == CCK_CStyleCast || CCK == CCK_FunctionalCast); | |||
3796 | ||||
3797 | // Overall FIXME: we are recomputing too many types here and doing far too | |||
3798 | // much extra work. What this means is that we need to keep track of more | |||
3799 | // information that is computed when we try the implicit conversion initially, | |||
3800 | // so that we don't need to recompute anything here. | |||
3801 | QualType FromType = From->getType(); | |||
3802 | ||||
3803 | if (SCS.CopyConstructor) { | |||
3804 | // FIXME: When can ToType be a reference type? | |||
3805 | assert(!ToType->isReferenceType())(static_cast <bool> (!ToType->isReferenceType()) ? void (0) : __assert_fail ("!ToType->isReferenceType()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3805, __extension__ __PRETTY_FUNCTION__)); | |||
3806 | if (SCS.Second == ICK_Derived_To_Base) { | |||
3807 | SmallVector<Expr*, 8> ConstructorArgs; | |||
3808 | if (CompleteConstructorCall(cast<CXXConstructorDecl>(SCS.CopyConstructor), | |||
3809 | From, /*FIXME:ConstructLoc*/SourceLocation(), | |||
3810 | ConstructorArgs)) | |||
3811 | return ExprError(); | |||
3812 | return BuildCXXConstructExpr( | |||
3813 | /*FIXME:ConstructLoc*/ SourceLocation(), ToType, | |||
3814 | SCS.FoundCopyConstructor, SCS.CopyConstructor, | |||
3815 | ConstructorArgs, /*HadMultipleCandidates*/ false, | |||
3816 | /*ListInit*/ false, /*StdInitListInit*/ false, /*ZeroInit*/ false, | |||
3817 | CXXConstructExpr::CK_Complete, SourceRange()); | |||
3818 | } | |||
3819 | return BuildCXXConstructExpr( | |||
3820 | /*FIXME:ConstructLoc*/ SourceLocation(), ToType, | |||
3821 | SCS.FoundCopyConstructor, SCS.CopyConstructor, | |||
3822 | From, /*HadMultipleCandidates*/ false, | |||
3823 | /*ListInit*/ false, /*StdInitListInit*/ false, /*ZeroInit*/ false, | |||
3824 | CXXConstructExpr::CK_Complete, SourceRange()); | |||
3825 | } | |||
3826 | ||||
3827 | // Resolve overloaded function references. | |||
3828 | if (Context.hasSameType(FromType, Context.OverloadTy)) { | |||
3829 | DeclAccessPair Found; | |||
3830 | FunctionDecl *Fn = ResolveAddressOfOverloadedFunction(From, ToType, | |||
3831 | true, Found); | |||
3832 | if (!Fn) | |||
3833 | return ExprError(); | |||
3834 | ||||
3835 | if (DiagnoseUseOfDecl(Fn, From->getLocStart())) | |||
3836 | return ExprError(); | |||
3837 | ||||
3838 | From = FixOverloadedFunctionReference(From, Found, Fn); | |||
3839 | FromType = From->getType(); | |||
3840 | } | |||
3841 | ||||
3842 | // If we're converting to an atomic type, first convert to the corresponding | |||
3843 | // non-atomic type. | |||
3844 | QualType ToAtomicType; | |||
3845 | if (const AtomicType *ToAtomic = ToType->getAs<AtomicType>()) { | |||
3846 | ToAtomicType = ToType; | |||
3847 | ToType = ToAtomic->getValueType(); | |||
3848 | } | |||
3849 | ||||
3850 | QualType InitialFromType = FromType; | |||
3851 | // Perform the first implicit conversion. | |||
3852 | switch (SCS.First) { | |||
3853 | case ICK_Identity: | |||
3854 | if (const AtomicType *FromAtomic = FromType->getAs<AtomicType>()) { | |||
3855 | FromType = FromAtomic->getValueType().getUnqualifiedType(); | |||
3856 | From = ImplicitCastExpr::Create(Context, FromType, CK_AtomicToNonAtomic, | |||
3857 | From, /*BasePath=*/nullptr, VK_RValue); | |||
3858 | } | |||
3859 | break; | |||
3860 | ||||
3861 | case ICK_Lvalue_To_Rvalue: { | |||
3862 | assert(From->getObjectKind() != OK_ObjCProperty)(static_cast <bool> (From->getObjectKind() != OK_ObjCProperty ) ? void (0) : __assert_fail ("From->getObjectKind() != OK_ObjCProperty" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3862, __extension__ __PRETTY_FUNCTION__)); | |||
3863 | ExprResult FromRes = DefaultLvalueConversion(From); | |||
3864 | assert(!FromRes.isInvalid() && "Can't perform deduced conversion?!")(static_cast <bool> (!FromRes.isInvalid() && "Can't perform deduced conversion?!" ) ? void (0) : __assert_fail ("!FromRes.isInvalid() && \"Can't perform deduced conversion?!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3864, __extension__ __PRETTY_FUNCTION__)); | |||
3865 | From = FromRes.get(); | |||
3866 | FromType = From->getType(); | |||
3867 | break; | |||
3868 | } | |||
3869 | ||||
3870 | case ICK_Array_To_Pointer: | |||
3871 | FromType = Context.getArrayDecayedType(FromType); | |||
3872 | From = ImpCastExprToType(From, FromType, CK_ArrayToPointerDecay, | |||
3873 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3874 | break; | |||
3875 | ||||
3876 | case ICK_Function_To_Pointer: | |||
3877 | FromType = Context.getPointerType(FromType); | |||
3878 | From = ImpCastExprToType(From, FromType, CK_FunctionToPointerDecay, | |||
3879 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3880 | break; | |||
3881 | ||||
3882 | default: | |||
3883 | llvm_unreachable("Improper first standard conversion")::llvm::llvm_unreachable_internal("Improper first standard conversion" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3883); | |||
3884 | } | |||
3885 | ||||
3886 | // Perform the second implicit conversion | |||
3887 | switch (SCS.Second) { | |||
3888 | case ICK_Identity: | |||
3889 | // C++ [except.spec]p5: | |||
3890 | // [For] assignment to and initialization of pointers to functions, | |||
3891 | // pointers to member functions, and references to functions: the | |||
3892 | // target entity shall allow at least the exceptions allowed by the | |||
3893 | // source value in the assignment or initialization. | |||
3894 | switch (Action) { | |||
3895 | case AA_Assigning: | |||
3896 | case AA_Initializing: | |||
3897 | // Note, function argument passing and returning are initialization. | |||
3898 | case AA_Passing: | |||
3899 | case AA_Returning: | |||
3900 | case AA_Sending: | |||
3901 | case AA_Passing_CFAudited: | |||
3902 | if (CheckExceptionSpecCompatibility(From, ToType)) | |||
3903 | return ExprError(); | |||
3904 | break; | |||
3905 | ||||
3906 | case AA_Casting: | |||
3907 | case AA_Converting: | |||
3908 | // Casts and implicit conversions are not initialization, so are not | |||
3909 | // checked for exception specification mismatches. | |||
3910 | break; | |||
3911 | } | |||
3912 | // Nothing else to do. | |||
3913 | break; | |||
3914 | ||||
3915 | case ICK_Integral_Promotion: | |||
3916 | case ICK_Integral_Conversion: | |||
3917 | if (ToType->isBooleanType()) { | |||
3918 | assert(FromType->castAs<EnumType>()->getDecl()->isFixed() &&(static_cast <bool> (FromType->castAs<EnumType> ()->getDecl()->isFixed() && SCS.Second == ICK_Integral_Promotion && "only enums with fixed underlying type can promote to bool" ) ? void (0) : __assert_fail ("FromType->castAs<EnumType>()->getDecl()->isFixed() && SCS.Second == ICK_Integral_Promotion && \"only enums with fixed underlying type can promote to bool\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3920, __extension__ __PRETTY_FUNCTION__)) | |||
3919 | SCS.Second == ICK_Integral_Promotion &&(static_cast <bool> (FromType->castAs<EnumType> ()->getDecl()->isFixed() && SCS.Second == ICK_Integral_Promotion && "only enums with fixed underlying type can promote to bool" ) ? void (0) : __assert_fail ("FromType->castAs<EnumType>()->getDecl()->isFixed() && SCS.Second == ICK_Integral_Promotion && \"only enums with fixed underlying type can promote to bool\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3920, __extension__ __PRETTY_FUNCTION__)) | |||
3920 | "only enums with fixed underlying type can promote to bool")(static_cast <bool> (FromType->castAs<EnumType> ()->getDecl()->isFixed() && SCS.Second == ICK_Integral_Promotion && "only enums with fixed underlying type can promote to bool" ) ? void (0) : __assert_fail ("FromType->castAs<EnumType>()->getDecl()->isFixed() && SCS.Second == ICK_Integral_Promotion && \"only enums with fixed underlying type can promote to bool\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 3920, __extension__ __PRETTY_FUNCTION__)); | |||
3921 | From = ImpCastExprToType(From, ToType, CK_IntegralToBoolean, | |||
3922 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3923 | } else { | |||
3924 | From = ImpCastExprToType(From, ToType, CK_IntegralCast, | |||
3925 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3926 | } | |||
3927 | break; | |||
3928 | ||||
3929 | case ICK_Floating_Promotion: | |||
3930 | case ICK_Floating_Conversion: | |||
3931 | From = ImpCastExprToType(From, ToType, CK_FloatingCast, | |||
3932 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3933 | break; | |||
3934 | ||||
3935 | case ICK_Complex_Promotion: | |||
3936 | case ICK_Complex_Conversion: { | |||
3937 | QualType FromEl = From->getType()->getAs<ComplexType>()->getElementType(); | |||
3938 | QualType ToEl = ToType->getAs<ComplexType>()->getElementType(); | |||
3939 | CastKind CK; | |||
3940 | if (FromEl->isRealFloatingType()) { | |||
3941 | if (ToEl->isRealFloatingType()) | |||
3942 | CK = CK_FloatingComplexCast; | |||
3943 | else | |||
3944 | CK = CK_FloatingComplexToIntegralComplex; | |||
3945 | } else if (ToEl->isRealFloatingType()) { | |||
3946 | CK = CK_IntegralComplexToFloatingComplex; | |||
3947 | } else { | |||
3948 | CK = CK_IntegralComplexCast; | |||
3949 | } | |||
3950 | From = ImpCastExprToType(From, ToType, CK, | |||
3951 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3952 | break; | |||
3953 | } | |||
3954 | ||||
3955 | case ICK_Floating_Integral: | |||
3956 | if (ToType->isRealFloatingType()) | |||
3957 | From = ImpCastExprToType(From, ToType, CK_IntegralToFloating, | |||
3958 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3959 | else | |||
3960 | From = ImpCastExprToType(From, ToType, CK_FloatingToIntegral, | |||
3961 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3962 | break; | |||
3963 | ||||
3964 | case ICK_Compatible_Conversion: | |||
3965 | From = ImpCastExprToType(From, ToType, CK_NoOp, | |||
3966 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
3967 | break; | |||
3968 | ||||
3969 | case ICK_Writeback_Conversion: | |||
3970 | case ICK_Pointer_Conversion: { | |||
3971 | if (SCS.IncompatibleObjC && Action != AA_Casting) { | |||
3972 | // Diagnose incompatible Objective-C conversions | |||
3973 | if (Action == AA_Initializing || Action == AA_Assigning) | |||
3974 | Diag(From->getLocStart(), | |||
3975 | diag::ext_typecheck_convert_incompatible_pointer) | |||
3976 | << ToType << From->getType() << Action | |||
3977 | << From->getSourceRange() << 0; | |||
3978 | else | |||
3979 | Diag(From->getLocStart(), | |||
3980 | diag::ext_typecheck_convert_incompatible_pointer) | |||
3981 | << From->getType() << ToType << Action | |||
3982 | << From->getSourceRange() << 0; | |||
3983 | ||||
3984 | if (From->getType()->isObjCObjectPointerType() && | |||
3985 | ToType->isObjCObjectPointerType()) | |||
3986 | EmitRelatedResultTypeNote(From); | |||
3987 | } else if (getLangOpts().allowsNonTrivialObjCLifetimeQualifiers() && | |||
3988 | !CheckObjCARCUnavailableWeakConversion(ToType, | |||
3989 | From->getType())) { | |||
3990 | if (Action == AA_Initializing) | |||
3991 | Diag(From->getLocStart(), | |||
3992 | diag::err_arc_weak_unavailable_assign); | |||
3993 | else | |||
3994 | Diag(From->getLocStart(), | |||
3995 | diag::err_arc_convesion_of_weak_unavailable) | |||
3996 | << (Action == AA_Casting) << From->getType() << ToType | |||
3997 | << From->getSourceRange(); | |||
3998 | } | |||
3999 | ||||
4000 | CastKind Kind; | |||
4001 | CXXCastPath BasePath; | |||
4002 | if (CheckPointerConversion(From, ToType, Kind, BasePath, CStyle)) | |||
4003 | return ExprError(); | |||
4004 | ||||
4005 | // Make sure we extend blocks if necessary. | |||
4006 | // FIXME: doing this here is really ugly. | |||
4007 | if (Kind == CK_BlockPointerToObjCPointerCast) { | |||
4008 | ExprResult E = From; | |||
4009 | (void) PrepareCastToObjCObjectPointer(E); | |||
4010 | From = E.get(); | |||
4011 | } | |||
4012 | if (getLangOpts().allowsNonTrivialObjCLifetimeQualifiers()) | |||
4013 | CheckObjCConversion(SourceRange(), ToType, From, CCK); | |||
4014 | From = ImpCastExprToType(From, ToType, Kind, VK_RValue, &BasePath, CCK) | |||
4015 | .get(); | |||
4016 | break; | |||
4017 | } | |||
4018 | ||||
4019 | case ICK_Pointer_Member: { | |||
4020 | CastKind Kind; | |||
4021 | CXXCastPath BasePath; | |||
4022 | if (CheckMemberPointerConversion(From, ToType, Kind, BasePath, CStyle)) | |||
4023 | return ExprError(); | |||
4024 | if (CheckExceptionSpecCompatibility(From, ToType)) | |||
4025 | return ExprError(); | |||
4026 | ||||
4027 | // We may not have been able to figure out what this member pointer resolved | |||
4028 | // to up until this exact point. Attempt to lock-in it's inheritance model. | |||
4029 | if (Context.getTargetInfo().getCXXABI().isMicrosoft()) { | |||
4030 | (void)isCompleteType(From->getExprLoc(), From->getType()); | |||
4031 | (void)isCompleteType(From->getExprLoc(), ToType); | |||
4032 | } | |||
4033 | ||||
4034 | From = ImpCastExprToType(From, ToType, Kind, VK_RValue, &BasePath, CCK) | |||
4035 | .get(); | |||
4036 | break; | |||
4037 | } | |||
4038 | ||||
4039 | case ICK_Boolean_Conversion: | |||
4040 | // Perform half-to-boolean conversion via float. | |||
4041 | if (From->getType()->isHalfType()) { | |||
4042 | From = ImpCastExprToType(From, Context.FloatTy, CK_FloatingCast).get(); | |||
4043 | FromType = Context.FloatTy; | |||
4044 | } | |||
4045 | ||||
4046 | From = ImpCastExprToType(From, Context.BoolTy, | |||
4047 | ScalarTypeToBooleanCastKind(FromType), | |||
4048 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4049 | break; | |||
4050 | ||||
4051 | case ICK_Derived_To_Base: { | |||
4052 | CXXCastPath BasePath; | |||
4053 | if (CheckDerivedToBaseConversion(From->getType(), | |||
4054 | ToType.getNonReferenceType(), | |||
4055 | From->getLocStart(), | |||
4056 | From->getSourceRange(), | |||
4057 | &BasePath, | |||
4058 | CStyle)) | |||
4059 | return ExprError(); | |||
4060 | ||||
4061 | From = ImpCastExprToType(From, ToType.getNonReferenceType(), | |||
4062 | CK_DerivedToBase, From->getValueKind(), | |||
4063 | &BasePath, CCK).get(); | |||
4064 | break; | |||
4065 | } | |||
4066 | ||||
4067 | case ICK_Vector_Conversion: | |||
4068 | From = ImpCastExprToType(From, ToType, CK_BitCast, | |||
4069 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4070 | break; | |||
4071 | ||||
4072 | case ICK_Vector_Splat: { | |||
4073 | // Vector splat from any arithmetic type to a vector. | |||
4074 | Expr *Elem = prepareVectorSplat(ToType, From).get(); | |||
4075 | From = ImpCastExprToType(Elem, ToType, CK_VectorSplat, VK_RValue, | |||
4076 | /*BasePath=*/nullptr, CCK).get(); | |||
4077 | break; | |||
4078 | } | |||
4079 | ||||
4080 | case ICK_Complex_Real: | |||
4081 | // Case 1. x -> _Complex y | |||
4082 | if (const ComplexType *ToComplex = ToType->getAs<ComplexType>()) { | |||
4083 | QualType ElType = ToComplex->getElementType(); | |||
4084 | bool isFloatingComplex = ElType->isRealFloatingType(); | |||
4085 | ||||
4086 | // x -> y | |||
4087 | if (Context.hasSameUnqualifiedType(ElType, From->getType())) { | |||
4088 | // do nothing | |||
4089 | } else if (From->getType()->isRealFloatingType()) { | |||
4090 | From = ImpCastExprToType(From, ElType, | |||
4091 | isFloatingComplex ? CK_FloatingCast : CK_FloatingToIntegral).get(); | |||
4092 | } else { | |||
4093 | assert(From->getType()->isIntegerType())(static_cast <bool> (From->getType()->isIntegerType ()) ? void (0) : __assert_fail ("From->getType()->isIntegerType()" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4093, __extension__ __PRETTY_FUNCTION__)); | |||
4094 | From = ImpCastExprToType(From, ElType, | |||
4095 | isFloatingComplex ? CK_IntegralToFloating : CK_IntegralCast).get(); | |||
4096 | } | |||
4097 | // y -> _Complex y | |||
4098 | From = ImpCastExprToType(From, ToType, | |||
4099 | isFloatingComplex ? CK_FloatingRealToComplex | |||
4100 | : CK_IntegralRealToComplex).get(); | |||
4101 | ||||
4102 | // Case 2. _Complex x -> y | |||
4103 | } else { | |||
4104 | const ComplexType *FromComplex = From->getType()->getAs<ComplexType>(); | |||
4105 | assert(FromComplex)(static_cast <bool> (FromComplex) ? void (0) : __assert_fail ("FromComplex", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4105, __extension__ __PRETTY_FUNCTION__)); | |||
4106 | ||||
4107 | QualType ElType = FromComplex->getElementType(); | |||
4108 | bool isFloatingComplex = ElType->isRealFloatingType(); | |||
4109 | ||||
4110 | // _Complex x -> x | |||
4111 | From = ImpCastExprToType(From, ElType, | |||
4112 | isFloatingComplex ? CK_FloatingComplexToReal | |||
4113 | : CK_IntegralComplexToReal, | |||
4114 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4115 | ||||
4116 | // x -> y | |||
4117 | if (Context.hasSameUnqualifiedType(ElType, ToType)) { | |||
4118 | // do nothing | |||
4119 | } else if (ToType->isRealFloatingType()) { | |||
4120 | From = ImpCastExprToType(From, ToType, | |||
4121 | isFloatingComplex ? CK_FloatingCast : CK_IntegralToFloating, | |||
4122 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4123 | } else { | |||
4124 | assert(ToType->isIntegerType())(static_cast <bool> (ToType->isIntegerType()) ? void (0) : __assert_fail ("ToType->isIntegerType()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4124, __extension__ __PRETTY_FUNCTION__)); | |||
4125 | From = ImpCastExprToType(From, ToType, | |||
4126 | isFloatingComplex ? CK_FloatingToIntegral : CK_IntegralCast, | |||
4127 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4128 | } | |||
4129 | } | |||
4130 | break; | |||
4131 | ||||
4132 | case ICK_Block_Pointer_Conversion: { | |||
4133 | From = ImpCastExprToType(From, ToType.getUnqualifiedType(), CK_BitCast, | |||
4134 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4135 | break; | |||
4136 | } | |||
4137 | ||||
4138 | case ICK_TransparentUnionConversion: { | |||
4139 | ExprResult FromRes = From; | |||
4140 | Sema::AssignConvertType ConvTy = | |||
4141 | CheckTransparentUnionArgumentConstraints(ToType, FromRes); | |||
4142 | if (FromRes.isInvalid()) | |||
4143 | return ExprError(); | |||
4144 | From = FromRes.get(); | |||
4145 | assert ((ConvTy == Sema::Compatible) &&(static_cast <bool> ((ConvTy == Sema::Compatible) && "Improper transparent union conversion") ? void (0) : __assert_fail ("(ConvTy == Sema::Compatible) && \"Improper transparent union conversion\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4146, __extension__ __PRETTY_FUNCTION__)) | |||
4146 | "Improper transparent union conversion")(static_cast <bool> ((ConvTy == Sema::Compatible) && "Improper transparent union conversion") ? void (0) : __assert_fail ("(ConvTy == Sema::Compatible) && \"Improper transparent union conversion\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4146, __extension__ __PRETTY_FUNCTION__)); | |||
4147 | (void)ConvTy; | |||
4148 | break; | |||
4149 | } | |||
4150 | ||||
4151 | case ICK_Zero_Event_Conversion: | |||
4152 | From = ImpCastExprToType(From, ToType, | |||
4153 | CK_ZeroToOCLEvent, | |||
4154 | From->getValueKind()).get(); | |||
4155 | break; | |||
4156 | ||||
4157 | case ICK_Zero_Queue_Conversion: | |||
4158 | From = ImpCastExprToType(From, ToType, | |||
4159 | CK_ZeroToOCLQueue, | |||
4160 | From->getValueKind()).get(); | |||
4161 | break; | |||
4162 | ||||
4163 | case ICK_Lvalue_To_Rvalue: | |||
4164 | case ICK_Array_To_Pointer: | |||
4165 | case ICK_Function_To_Pointer: | |||
4166 | case ICK_Function_Conversion: | |||
4167 | case ICK_Qualification: | |||
4168 | case ICK_Num_Conversion_Kinds: | |||
4169 | case ICK_C_Only_Conversion: | |||
4170 | case ICK_Incompatible_Pointer_Conversion: | |||
4171 | llvm_unreachable("Improper second standard conversion")::llvm::llvm_unreachable_internal("Improper second standard conversion" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4171); | |||
4172 | } | |||
4173 | ||||
4174 | switch (SCS.Third) { | |||
4175 | case ICK_Identity: | |||
4176 | // Nothing to do. | |||
4177 | break; | |||
4178 | ||||
4179 | case ICK_Function_Conversion: | |||
4180 | // If both sides are functions (or pointers/references to them), there could | |||
4181 | // be incompatible exception declarations. | |||
4182 | if (CheckExceptionSpecCompatibility(From, ToType)) | |||
4183 | return ExprError(); | |||
4184 | ||||
4185 | From = ImpCastExprToType(From, ToType, CK_NoOp, | |||
4186 | VK_RValue, /*BasePath=*/nullptr, CCK).get(); | |||
4187 | break; | |||
4188 | ||||
4189 | case ICK_Qualification: { | |||
4190 | // The qualification keeps the category of the inner expression, unless the | |||
4191 | // target type isn't a reference. | |||
4192 | ExprValueKind VK = ToType->isReferenceType() ? | |||
4193 | From->getValueKind() : VK_RValue; | |||
4194 | From = ImpCastExprToType(From, ToType.getNonLValueExprType(Context), | |||
4195 | CK_NoOp, VK, /*BasePath=*/nullptr, CCK).get(); | |||
4196 | ||||
4197 | if (SCS.DeprecatedStringLiteralToCharPtr && | |||
4198 | !getLangOpts().WritableStrings) { | |||
4199 | Diag(From->getLocStart(), getLangOpts().CPlusPlus11 | |||
4200 | ? diag::ext_deprecated_string_literal_conversion | |||
4201 | : diag::warn_deprecated_string_literal_conversion) | |||
4202 | << ToType.getNonReferenceType(); | |||
4203 | } | |||
4204 | ||||
4205 | break; | |||
4206 | } | |||
4207 | ||||
4208 | default: | |||
4209 | llvm_unreachable("Improper third standard conversion")::llvm::llvm_unreachable_internal("Improper third standard conversion" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4209); | |||
4210 | } | |||
4211 | ||||
4212 | // If this conversion sequence involved a scalar -> atomic conversion, perform | |||
4213 | // that conversion now. | |||
4214 | if (!ToAtomicType.isNull()) { | |||
4215 | assert(Context.hasSameType((static_cast <bool> (Context.hasSameType( ToAtomicType-> castAs<AtomicType>()->getValueType(), From->getType ())) ? void (0) : __assert_fail ("Context.hasSameType( ToAtomicType->castAs<AtomicType>()->getValueType(), From->getType())" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4216, __extension__ __PRETTY_FUNCTION__)) | |||
4216 | ToAtomicType->castAs<AtomicType>()->getValueType(), From->getType()))(static_cast <bool> (Context.hasSameType( ToAtomicType-> castAs<AtomicType>()->getValueType(), From->getType ())) ? void (0) : __assert_fail ("Context.hasSameType( ToAtomicType->castAs<AtomicType>()->getValueType(), From->getType())" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4216, __extension__ __PRETTY_FUNCTION__)); | |||
4217 | From = ImpCastExprToType(From, ToAtomicType, CK_NonAtomicToAtomic, | |||
4218 | VK_RValue, nullptr, CCK).get(); | |||
4219 | } | |||
4220 | ||||
4221 | // If this conversion sequence succeeded and involved implicitly converting a | |||
4222 | // _Nullable type to a _Nonnull one, complain. | |||
4223 | if (CCK == CCK_ImplicitConversion) | |||
4224 | diagnoseNullableToNonnullConversion(ToType, InitialFromType, | |||
4225 | From->getLocStart()); | |||
4226 | ||||
4227 | return From; | |||
4228 | } | |||
4229 | ||||
4230 | /// \brief Check the completeness of a type in a unary type trait. | |||
4231 | /// | |||
4232 | /// If the particular type trait requires a complete type, tries to complete | |||
4233 | /// it. If completing the type fails, a diagnostic is emitted and false | |||
4234 | /// returned. If completing the type succeeds or no completion was required, | |||
4235 | /// returns true. | |||
4236 | static bool CheckUnaryTypeTraitTypeCompleteness(Sema &S, TypeTrait UTT, | |||
4237 | SourceLocation Loc, | |||
4238 | QualType ArgTy) { | |||
4239 | // C++0x [meta.unary.prop]p3: | |||
4240 | // For all of the class templates X declared in this Clause, instantiating | |||
4241 | // that template with a template argument that is a class template | |||
4242 | // specialization may result in the implicit instantiation of the template | |||
4243 | // argument if and only if the semantics of X require that the argument | |||
4244 | // must be a complete type. | |||
4245 | // We apply this rule to all the type trait expressions used to implement | |||
4246 | // these class templates. We also try to follow any GCC documented behavior | |||
4247 | // in these expressions to ensure portability of standard libraries. | |||
4248 | switch (UTT) { | |||
4249 | default: llvm_unreachable("not a UTT")::llvm::llvm_unreachable_internal("not a UTT", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4249); | |||
4250 | // is_complete_type somewhat obviously cannot require a complete type. | |||
4251 | case UTT_IsCompleteType: | |||
4252 | // Fall-through | |||
4253 | ||||
4254 | // These traits are modeled on the type predicates in C++0x | |||
4255 | // [meta.unary.cat] and [meta.unary.comp]. They are not specified as | |||
4256 | // requiring a complete type, as whether or not they return true cannot be | |||
4257 | // impacted by the completeness of the type. | |||
4258 | case UTT_IsVoid: | |||
4259 | case UTT_IsIntegral: | |||
4260 | case UTT_IsFloatingPoint: | |||
4261 | case UTT_IsArray: | |||
4262 | case UTT_IsPointer: | |||
4263 | case UTT_IsLvalueReference: | |||
4264 | case UTT_IsRvalueReference: | |||
4265 | case UTT_IsMemberFunctionPointer: | |||
4266 | case UTT_IsMemberObjectPointer: | |||
4267 | case UTT_IsEnum: | |||
4268 | case UTT_IsUnion: | |||
4269 | case UTT_IsClass: | |||
4270 | case UTT_IsFunction: | |||
4271 | case UTT_IsReference: | |||
4272 | case UTT_IsArithmetic: | |||
4273 | case UTT_IsFundamental: | |||
4274 | case UTT_IsObject: | |||
4275 | case UTT_IsScalar: | |||
4276 | case UTT_IsCompound: | |||
4277 | case UTT_IsMemberPointer: | |||
4278 | // Fall-through | |||
4279 | ||||
4280 | // These traits are modeled on type predicates in C++0x [meta.unary.prop] | |||
4281 | // which requires some of its traits to have the complete type. However, | |||
4282 | // the completeness of the type cannot impact these traits' semantics, and | |||
4283 | // so they don't require it. This matches the comments on these traits in | |||
4284 | // Table 49. | |||
4285 | case UTT_IsConst: | |||
4286 | case UTT_IsVolatile: | |||
4287 | case UTT_IsSigned: | |||
4288 | case UTT_IsUnsigned: | |||
4289 | ||||
4290 | // This type trait always returns false, checking the type is moot. | |||
4291 | case UTT_IsInterfaceClass: | |||
4292 | return true; | |||
4293 | ||||
4294 | // C++14 [meta.unary.prop]: | |||
4295 | // If T is a non-union class type, T shall be a complete type. | |||
4296 | case UTT_IsEmpty: | |||
4297 | case UTT_IsPolymorphic: | |||
4298 | case UTT_IsAbstract: | |||
4299 | if (const auto *RD = ArgTy->getAsCXXRecordDecl()) | |||
4300 | if (!RD->isUnion()) | |||
4301 | return !S.RequireCompleteType( | |||
4302 | Loc, ArgTy, diag::err_incomplete_type_used_in_type_trait_expr); | |||
4303 | return true; | |||
4304 | ||||
4305 | // C++14 [meta.unary.prop]: | |||
4306 | // If T is a class type, T shall be a complete type. | |||
4307 | case UTT_IsFinal: | |||
4308 | case UTT_IsSealed: | |||
4309 | if (ArgTy->getAsCXXRecordDecl()) | |||
4310 | return !S.RequireCompleteType( | |||
4311 | Loc, ArgTy, diag::err_incomplete_type_used_in_type_trait_expr); | |||
4312 | return true; | |||
4313 | ||||
4314 | // C++1z [meta.unary.prop]: | |||
4315 | // remove_all_extents_t<T> shall be a complete type or cv void. | |||
4316 | case UTT_IsAggregate: | |||
4317 | case UTT_IsTrivial: | |||
4318 | case UTT_IsTriviallyCopyable: | |||
4319 | case UTT_IsStandardLayout: | |||
4320 | case UTT_IsPOD: | |||
4321 | case UTT_IsLiteral: | |||
4322 | // Per the GCC type traits documentation, T shall be a complete type, cv void, | |||
4323 | // or an array of unknown bound. But GCC actually imposes the same constraints | |||
4324 | // as above. | |||
4325 | case UTT_HasNothrowAssign: | |||
4326 | case UTT_HasNothrowMoveAssign: | |||
4327 | case UTT_HasNothrowConstructor: | |||
4328 | case UTT_HasNothrowCopy: | |||
4329 | case UTT_HasTrivialAssign: | |||
4330 | case UTT_HasTrivialMoveAssign: | |||
4331 | case UTT_HasTrivialDefaultConstructor: | |||
4332 | case UTT_HasTrivialMoveConstructor: | |||
4333 | case UTT_HasTrivialCopy: | |||
4334 | case UTT_HasTrivialDestructor: | |||
4335 | case UTT_HasVirtualDestructor: | |||
4336 | ArgTy = QualType(ArgTy->getBaseElementTypeUnsafe(), 0); | |||
4337 | LLVM_FALLTHROUGH[[clang::fallthrough]]; | |||
4338 | ||||
4339 | // C++1z [meta.unary.prop]: | |||
4340 | // T shall be a complete type, cv void, or an array of unknown bound. | |||
4341 | case UTT_IsDestructible: | |||
4342 | case UTT_IsNothrowDestructible: | |||
4343 | case UTT_IsTriviallyDestructible: | |||
4344 | case UTT_HasUniqueObjectRepresentations: | |||
4345 | if (ArgTy->isIncompleteArrayType() || ArgTy->isVoidType()) | |||
4346 | return true; | |||
4347 | ||||
4348 | return !S.RequireCompleteType( | |||
4349 | Loc, ArgTy, diag::err_incomplete_type_used_in_type_trait_expr); | |||
4350 | } | |||
4351 | } | |||
4352 | ||||
4353 | static bool HasNoThrowOperator(const RecordType *RT, OverloadedOperatorKind Op, | |||
4354 | Sema &Self, SourceLocation KeyLoc, ASTContext &C, | |||
4355 | bool (CXXRecordDecl::*HasTrivial)() const, | |||
4356 | bool (CXXRecordDecl::*HasNonTrivial)() const, | |||
4357 | bool (CXXMethodDecl::*IsDesiredOp)() const) | |||
4358 | { | |||
4359 | CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); | |||
4360 | if ((RD->*HasTrivial)() && !(RD->*HasNonTrivial)()) | |||
4361 | return true; | |||
4362 | ||||
4363 | DeclarationName Name = C.DeclarationNames.getCXXOperatorName(Op); | |||
4364 | DeclarationNameInfo NameInfo(Name, KeyLoc); | |||
4365 | LookupResult Res(Self, NameInfo, Sema::LookupOrdinaryName); | |||
4366 | if (Self.LookupQualifiedName(Res, RD)) { | |||
4367 | bool FoundOperator = false; | |||
4368 | Res.suppressDiagnostics(); | |||
4369 | for (LookupResult::iterator Op = Res.begin(), OpEnd = Res.end(); | |||
4370 | Op != OpEnd; ++Op) { | |||
4371 | if (isa<FunctionTemplateDecl>(*Op)) | |||
4372 | continue; | |||
4373 | ||||
4374 | CXXMethodDecl *Operator = cast<CXXMethodDecl>(*Op); | |||
4375 | if((Operator->*IsDesiredOp)()) { | |||
4376 | FoundOperator = true; | |||
4377 | const FunctionProtoType *CPT = | |||
4378 | Operator->getType()->getAs<FunctionProtoType>(); | |||
4379 | CPT = Self.ResolveExceptionSpec(KeyLoc, CPT); | |||
4380 | if (!CPT || !CPT->isNothrow(C)) | |||
4381 | return false; | |||
4382 | } | |||
4383 | } | |||
4384 | return FoundOperator; | |||
4385 | } | |||
4386 | return false; | |||
4387 | } | |||
4388 | ||||
4389 | static bool EvaluateUnaryTypeTrait(Sema &Self, TypeTrait UTT, | |||
4390 | SourceLocation KeyLoc, QualType T) { | |||
4391 | assert(!T->isDependentType() && "Cannot evaluate traits of dependent type")(static_cast <bool> (!T->isDependentType() && "Cannot evaluate traits of dependent type") ? void (0) : __assert_fail ("!T->isDependentType() && \"Cannot evaluate traits of dependent type\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4391, __extension__ __PRETTY_FUNCTION__)); | |||
4392 | ||||
4393 | ASTContext &C = Self.Context; | |||
4394 | switch(UTT) { | |||
4395 | default: llvm_unreachable("not a UTT")::llvm::llvm_unreachable_internal("not a UTT", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4395); | |||
4396 | // Type trait expressions corresponding to the primary type category | |||
4397 | // predicates in C++0x [meta.unary.cat]. | |||
4398 | case UTT_IsVoid: | |||
4399 | return T->isVoidType(); | |||
4400 | case UTT_IsIntegral: | |||
4401 | return T->isIntegralType(C); | |||
4402 | case UTT_IsFloatingPoint: | |||
4403 | return T->isFloatingType(); | |||
4404 | case UTT_IsArray: | |||
4405 | return T->isArrayType(); | |||
4406 | case UTT_IsPointer: | |||
4407 | return T->isPointerType(); | |||
4408 | case UTT_IsLvalueReference: | |||
4409 | return T->isLValueReferenceType(); | |||
4410 | case UTT_IsRvalueReference: | |||
4411 | return T->isRValueReferenceType(); | |||
4412 | case UTT_IsMemberFunctionPointer: | |||
4413 | return T->isMemberFunctionPointerType(); | |||
4414 | case UTT_IsMemberObjectPointer: | |||
4415 | return T->isMemberDataPointerType(); | |||
4416 | case UTT_IsEnum: | |||
4417 | return T->isEnumeralType(); | |||
4418 | case UTT_IsUnion: | |||
4419 | return T->isUnionType(); | |||
4420 | case UTT_IsClass: | |||
4421 | return T->isClassType() || T->isStructureType() || T->isInterfaceType(); | |||
4422 | case UTT_IsFunction: | |||
4423 | return T->isFunctionType(); | |||
4424 | ||||
4425 | // Type trait expressions which correspond to the convenient composition | |||
4426 | // predicates in C++0x [meta.unary.comp]. | |||
4427 | case UTT_IsReference: | |||
4428 | return T->isReferenceType(); | |||
4429 | case UTT_IsArithmetic: | |||
4430 | return T->isArithmeticType() && !T->isEnumeralType(); | |||
4431 | case UTT_IsFundamental: | |||
4432 | return T->isFundamentalType(); | |||
4433 | case UTT_IsObject: | |||
4434 | return T->isObjectType(); | |||
4435 | case UTT_IsScalar: | |||
4436 | // Note: semantic analysis depends on Objective-C lifetime types to be | |||
4437 | // considered scalar types. However, such types do not actually behave | |||
4438 | // like scalar types at run time (since they may require retain/release | |||
4439 | // operations), so we report them as non-scalar. | |||
4440 | if (T->isObjCLifetimeType()) { | |||
4441 | switch (T.getObjCLifetime()) { | |||
4442 | case Qualifiers::OCL_None: | |||
4443 | case Qualifiers::OCL_ExplicitNone: | |||
4444 | return true; | |||
4445 | ||||
4446 | case Qualifiers::OCL_Strong: | |||
4447 | case Qualifiers::OCL_Weak: | |||
4448 | case Qualifiers::OCL_Autoreleasing: | |||
4449 | return false; | |||
4450 | } | |||
4451 | } | |||
4452 | ||||
4453 | return T->isScalarType(); | |||
4454 | case UTT_IsCompound: | |||
4455 | return T->isCompoundType(); | |||
4456 | case UTT_IsMemberPointer: | |||
4457 | return T->isMemberPointerType(); | |||
4458 | ||||
4459 | // Type trait expressions which correspond to the type property predicates | |||
4460 | // in C++0x [meta.unary.prop]. | |||
4461 | case UTT_IsConst: | |||
4462 | return T.isConstQualified(); | |||
4463 | case UTT_IsVolatile: | |||
4464 | return T.isVolatileQualified(); | |||
4465 | case UTT_IsTrivial: | |||
4466 | return T.isTrivialType(C); | |||
4467 | case UTT_IsTriviallyCopyable: | |||
4468 | return T.isTriviallyCopyableType(C); | |||
4469 | case UTT_IsStandardLayout: | |||
4470 | return T->isStandardLayoutType(); | |||
4471 | case UTT_IsPOD: | |||
4472 | return T.isPODType(C); | |||
4473 | case UTT_IsLiteral: | |||
4474 | return T->isLiteralType(C); | |||
4475 | case UTT_IsEmpty: | |||
4476 | if (const CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4477 | return !RD->isUnion() && RD->isEmpty(); | |||
4478 | return false; | |||
4479 | case UTT_IsPolymorphic: | |||
4480 | if (const CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4481 | return !RD->isUnion() && RD->isPolymorphic(); | |||
4482 | return false; | |||
4483 | case UTT_IsAbstract: | |||
4484 | if (const CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4485 | return !RD->isUnion() && RD->isAbstract(); | |||
4486 | return false; | |||
4487 | case UTT_IsAggregate: | |||
4488 | // Report vector extensions and complex types as aggregates because they | |||
4489 | // support aggregate initialization. GCC mirrors this behavior for vectors | |||
4490 | // but not _Complex. | |||
4491 | return T->isAggregateType() || T->isVectorType() || T->isExtVectorType() || | |||
4492 | T->isAnyComplexType(); | |||
4493 | // __is_interface_class only returns true when CL is invoked in /CLR mode and | |||
4494 | // even then only when it is used with the 'interface struct ...' syntax | |||
4495 | // Clang doesn't support /CLR which makes this type trait moot. | |||
4496 | case UTT_IsInterfaceClass: | |||
4497 | return false; | |||
4498 | case UTT_IsFinal: | |||
4499 | case UTT_IsSealed: | |||
4500 | if (const CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4501 | return RD->hasAttr<FinalAttr>(); | |||
4502 | return false; | |||
4503 | case UTT_IsSigned: | |||
4504 | return T->isSignedIntegerType(); | |||
4505 | case UTT_IsUnsigned: | |||
4506 | return T->isUnsignedIntegerType(); | |||
4507 | ||||
4508 | // Type trait expressions which query classes regarding their construction, | |||
4509 | // destruction, and copying. Rather than being based directly on the | |||
4510 | // related type predicates in the standard, they are specified by both | |||
4511 | // GCC[1] and the Embarcadero C++ compiler[2], and Clang implements those | |||
4512 | // specifications. | |||
4513 | // | |||
4514 | // 1: http://gcc.gnu/.org/onlinedocs/gcc/Type-Traits.html | |||
4515 | // 2: http://docwiki.embarcadero.com/RADStudio/XE/en/Type_Trait_Functions_(C%2B%2B0x)_Index | |||
4516 | // | |||
4517 | // Note that these builtins do not behave as documented in g++: if a class | |||
4518 | // has both a trivial and a non-trivial special member of a particular kind, | |||
4519 | // they return false! For now, we emulate this behavior. | |||
4520 | // FIXME: This appears to be a g++ bug: more complex cases reveal that it | |||
4521 | // does not correctly compute triviality in the presence of multiple special | |||
4522 | // members of the same kind. Revisit this once the g++ bug is fixed. | |||
4523 | case UTT_HasTrivialDefaultConstructor: | |||
4524 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: | |||
4525 | // If __is_pod (type) is true then the trait is true, else if type is | |||
4526 | // a cv class or union type (or array thereof) with a trivial default | |||
4527 | // constructor ([class.ctor]) then the trait is true, else it is false. | |||
4528 | if (T.isPODType(C)) | |||
4529 | return true; | |||
4530 | if (CXXRecordDecl *RD = C.getBaseElementType(T)->getAsCXXRecordDecl()) | |||
4531 | return RD->hasTrivialDefaultConstructor() && | |||
4532 | !RD->hasNonTrivialDefaultConstructor(); | |||
4533 | return false; | |||
4534 | case UTT_HasTrivialMoveConstructor: | |||
4535 | // This trait is implemented by MSVC 2012 and needed to parse the | |||
4536 | // standard library headers. Specifically this is used as the logic | |||
4537 | // behind std::is_trivially_move_constructible (20.9.4.3). | |||
4538 | if (T.isPODType(C)) | |||
4539 | return true; | |||
4540 | if (CXXRecordDecl *RD = C.getBaseElementType(T)->getAsCXXRecordDecl()) | |||
4541 | return RD->hasTrivialMoveConstructor() && !RD->hasNonTrivialMoveConstructor(); | |||
4542 | return false; | |||
4543 | case UTT_HasTrivialCopy: | |||
4544 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: | |||
4545 | // If __is_pod (type) is true or type is a reference type then | |||
4546 | // the trait is true, else if type is a cv class or union type | |||
4547 | // with a trivial copy constructor ([class.copy]) then the trait | |||
4548 | // is true, else it is false. | |||
4549 | if (T.isPODType(C) || T->isReferenceType()) | |||
4550 | return true; | |||
4551 | if (CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4552 | return RD->hasTrivialCopyConstructor() && | |||
4553 | !RD->hasNonTrivialCopyConstructor(); | |||
4554 | return false; | |||
4555 | case UTT_HasTrivialMoveAssign: | |||
4556 | // This trait is implemented by MSVC 2012 and needed to parse the | |||
4557 | // standard library headers. Specifically it is used as the logic | |||
4558 | // behind std::is_trivially_move_assignable (20.9.4.3) | |||
4559 | if (T.isPODType(C)) | |||
4560 | return true; | |||
4561 | if (CXXRecordDecl *RD = C.getBaseElementType(T)->getAsCXXRecordDecl()) | |||
4562 | return RD->hasTrivialMoveAssignment() && !RD->hasNonTrivialMoveAssignment(); | |||
4563 | return false; | |||
4564 | case UTT_HasTrivialAssign: | |||
4565 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: | |||
4566 | // If type is const qualified or is a reference type then the | |||
4567 | // trait is false. Otherwise if __is_pod (type) is true then the | |||
4568 | // trait is true, else if type is a cv class or union type with | |||
4569 | // a trivial copy assignment ([class.copy]) then the trait is | |||
4570 | // true, else it is false. | |||
4571 | // Note: the const and reference restrictions are interesting, | |||
4572 | // given that const and reference members don't prevent a class | |||
4573 | // from having a trivial copy assignment operator (but do cause | |||
4574 | // errors if the copy assignment operator is actually used, q.v. | |||
4575 | // [class.copy]p12). | |||
4576 | ||||
4577 | if (T.isConstQualified()) | |||
4578 | return false; | |||
4579 | if (T.isPODType(C)) | |||
4580 | return true; | |||
4581 | if (CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4582 | return RD->hasTrivialCopyAssignment() && | |||
4583 | !RD->hasNonTrivialCopyAssignment(); | |||
4584 | return false; | |||
4585 | case UTT_IsDestructible: | |||
4586 | case UTT_IsTriviallyDestructible: | |||
4587 | case UTT_IsNothrowDestructible: | |||
4588 | // C++14 [meta.unary.prop]: | |||
4589 | // For reference types, is_destructible<T>::value is true. | |||
4590 | if (T->isReferenceType()) | |||
4591 | return true; | |||
4592 | ||||
4593 | // Objective-C++ ARC: autorelease types don't require destruction. | |||
4594 | if (T->isObjCLifetimeType() && | |||
4595 | T.getObjCLifetime() == Qualifiers::OCL_Autoreleasing) | |||
4596 | return true; | |||
4597 | ||||
4598 | // C++14 [meta.unary.prop]: | |||
4599 | // For incomplete types and function types, is_destructible<T>::value is | |||
4600 | // false. | |||
4601 | if (T->isIncompleteType() || T->isFunctionType()) | |||
4602 | return false; | |||
4603 | ||||
4604 | // A type that requires destruction (via a non-trivial destructor or ARC | |||
4605 | // lifetime semantics) is not trivially-destructible. | |||
4606 | if (UTT == UTT_IsTriviallyDestructible && T.isDestructedType()) | |||
4607 | return false; | |||
4608 | ||||
4609 | // C++14 [meta.unary.prop]: | |||
4610 | // For object types and given U equal to remove_all_extents_t<T>, if the | |||
4611 | // expression std::declval<U&>().~U() is well-formed when treated as an | |||
4612 | // unevaluated operand (Clause 5), then is_destructible<T>::value is true | |||
4613 | if (auto *RD = C.getBaseElementType(T)->getAsCXXRecordDecl()) { | |||
4614 | CXXDestructorDecl *Destructor = Self.LookupDestructor(RD); | |||
4615 | if (!Destructor) | |||
4616 | return false; | |||
4617 | // C++14 [dcl.fct.def.delete]p2: | |||
4618 | // A program that refers to a deleted function implicitly or | |||
4619 | // explicitly, other than to declare it, is ill-formed. | |||
4620 | if (Destructor->isDeleted()) | |||
4621 | return false; | |||
4622 | if (C.getLangOpts().AccessControl && Destructor->getAccess() != AS_public) | |||
4623 | return false; | |||
4624 | if (UTT == UTT_IsNothrowDestructible) { | |||
4625 | const FunctionProtoType *CPT = | |||
4626 | Destructor->getType()->getAs<FunctionProtoType>(); | |||
4627 | CPT = Self.ResolveExceptionSpec(KeyLoc, CPT); | |||
4628 | if (!CPT || !CPT->isNothrow(C)) | |||
4629 | return false; | |||
4630 | } | |||
4631 | } | |||
4632 | return true; | |||
4633 | ||||
4634 | case UTT_HasTrivialDestructor: | |||
4635 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html | |||
4636 | // If __is_pod (type) is true or type is a reference type | |||
4637 | // then the trait is true, else if type is a cv class or union | |||
4638 | // type (or array thereof) with a trivial destructor | |||
4639 | // ([class.dtor]) then the trait is true, else it is | |||
4640 | // false. | |||
4641 | if (T.isPODType(C) || T->isReferenceType()) | |||
4642 | return true; | |||
4643 | ||||
4644 | // Objective-C++ ARC: autorelease types don't require destruction. | |||
4645 | if (T->isObjCLifetimeType() && | |||
4646 | T.getObjCLifetime() == Qualifiers::OCL_Autoreleasing) | |||
4647 | return true; | |||
4648 | ||||
4649 | if (CXXRecordDecl *RD = C.getBaseElementType(T)->getAsCXXRecordDecl()) | |||
4650 | return RD->hasTrivialDestructor(); | |||
4651 | return false; | |||
4652 | // TODO: Propagate nothrowness for implicitly declared special members. | |||
4653 | case UTT_HasNothrowAssign: | |||
4654 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: | |||
4655 | // If type is const qualified or is a reference type then the | |||
4656 | // trait is false. Otherwise if __has_trivial_assign (type) | |||
4657 | // is true then the trait is true, else if type is a cv class | |||
4658 | // or union type with copy assignment operators that are known | |||
4659 | // not to throw an exception then the trait is true, else it is | |||
4660 | // false. | |||
4661 | if (C.getBaseElementType(T).isConstQualified()) | |||
4662 | return false; | |||
4663 | if (T->isReferenceType()) | |||
4664 | return false; | |||
4665 | if (T.isPODType(C) || T->isObjCLifetimeType()) | |||
4666 | return true; | |||
4667 | ||||
4668 | if (const RecordType *RT = T->getAs<RecordType>()) | |||
4669 | return HasNoThrowOperator(RT, OO_Equal, Self, KeyLoc, C, | |||
4670 | &CXXRecordDecl::hasTrivialCopyAssignment, | |||
4671 | &CXXRecordDecl::hasNonTrivialCopyAssignment, | |||
4672 | &CXXMethodDecl::isCopyAssignmentOperator); | |||
4673 | return false; | |||
4674 | case UTT_HasNothrowMoveAssign: | |||
4675 | // This trait is implemented by MSVC 2012 and needed to parse the | |||
4676 | // standard library headers. Specifically this is used as the logic | |||
4677 | // behind std::is_nothrow_move_assignable (20.9.4.3). | |||
4678 | if (T.isPODType(C)) | |||
4679 | return true; | |||
4680 | ||||
4681 | if (const RecordType *RT = C.getBaseElementType(T)->getAs<RecordType>()) | |||
4682 | return HasNoThrowOperator(RT, OO_Equal, Self, KeyLoc, C, | |||
4683 | &CXXRecordDecl::hasTrivialMoveAssignment, | |||
4684 | &CXXRecordDecl::hasNonTrivialMoveAssignment, | |||
4685 | &CXXMethodDecl::isMoveAssignmentOperator); | |||
4686 | return false; | |||
4687 | case UTT_HasNothrowCopy: | |||
4688 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: | |||
4689 | // If __has_trivial_copy (type) is true then the trait is true, else | |||
4690 | // if type is a cv class or union type with copy constructors that are | |||
4691 | // known not to throw an exception then the trait is true, else it is | |||
4692 | // false. | |||
4693 | if (T.isPODType(C) || T->isReferenceType() || T->isObjCLifetimeType()) | |||
4694 | return true; | |||
4695 | if (CXXRecordDecl *RD = T->getAsCXXRecordDecl()) { | |||
4696 | if (RD->hasTrivialCopyConstructor() && | |||
4697 | !RD->hasNonTrivialCopyConstructor()) | |||
4698 | return true; | |||
4699 | ||||
4700 | bool FoundConstructor = false; | |||
4701 | unsigned FoundTQs; | |||
4702 | for (const auto *ND : Self.LookupConstructors(RD)) { | |||
4703 | // A template constructor is never a copy constructor. | |||
4704 | // FIXME: However, it may actually be selected at the actual overload | |||
4705 | // resolution point. | |||
4706 | if (isa<FunctionTemplateDecl>(ND->getUnderlyingDecl())) | |||
4707 | continue; | |||
4708 | // UsingDecl itself is not a constructor | |||
4709 | if (isa<UsingDecl>(ND)) | |||
4710 | continue; | |||
4711 | auto *Constructor = cast<CXXConstructorDecl>(ND->getUnderlyingDecl()); | |||
4712 | if (Constructor->isCopyConstructor(FoundTQs)) { | |||
4713 | FoundConstructor = true; | |||
4714 | const FunctionProtoType *CPT | |||
4715 | = Constructor->getType()->getAs<FunctionProtoType>(); | |||
4716 | CPT = Self.ResolveExceptionSpec(KeyLoc, CPT); | |||
4717 | if (!CPT) | |||
4718 | return false; | |||
4719 | // TODO: check whether evaluating default arguments can throw. | |||
4720 | // For now, we'll be conservative and assume that they can throw. | |||
4721 | if (!CPT->isNothrow(C) || CPT->getNumParams() > 1) | |||
4722 | return false; | |||
4723 | } | |||
4724 | } | |||
4725 | ||||
4726 | return FoundConstructor; | |||
4727 | } | |||
4728 | return false; | |||
4729 | case UTT_HasNothrowConstructor: | |||
4730 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html | |||
4731 | // If __has_trivial_constructor (type) is true then the trait is | |||
4732 | // true, else if type is a cv class or union type (or array | |||
4733 | // thereof) with a default constructor that is known not to | |||
4734 | // throw an exception then the trait is true, else it is false. | |||
4735 | if (T.isPODType(C) || T->isObjCLifetimeType()) | |||
4736 | return true; | |||
4737 | if (CXXRecordDecl *RD = C.getBaseElementType(T)->getAsCXXRecordDecl()) { | |||
4738 | if (RD->hasTrivialDefaultConstructor() && | |||
4739 | !RD->hasNonTrivialDefaultConstructor()) | |||
4740 | return true; | |||
4741 | ||||
4742 | bool FoundConstructor = false; | |||
4743 | for (const auto *ND : Self.LookupConstructors(RD)) { | |||
4744 | // FIXME: In C++0x, a constructor template can be a default constructor. | |||
4745 | if (isa<FunctionTemplateDecl>(ND->getUnderlyingDecl())) | |||
4746 | continue; | |||
4747 | // UsingDecl itself is not a constructor | |||
4748 | if (isa<UsingDecl>(ND)) | |||
4749 | continue; | |||
4750 | auto *Constructor = cast<CXXConstructorDecl>(ND->getUnderlyingDecl()); | |||
4751 | if (Constructor->isDefaultConstructor()) { | |||
4752 | FoundConstructor = true; | |||
4753 | const FunctionProtoType *CPT | |||
4754 | = Constructor->getType()->getAs<FunctionProtoType>(); | |||
4755 | CPT = Self.ResolveExceptionSpec(KeyLoc, CPT); | |||
4756 | if (!CPT) | |||
4757 | return false; | |||
4758 | // FIXME: check whether evaluating default arguments can throw. | |||
4759 | // For now, we'll be conservative and assume that they can throw. | |||
4760 | if (!CPT->isNothrow(C) || CPT->getNumParams() > 0) | |||
4761 | return false; | |||
4762 | } | |||
4763 | } | |||
4764 | return FoundConstructor; | |||
4765 | } | |||
4766 | return false; | |||
4767 | case UTT_HasVirtualDestructor: | |||
4768 | // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: | |||
4769 | // If type is a class type with a virtual destructor ([class.dtor]) | |||
4770 | // then the trait is true, else it is false. | |||
4771 | if (CXXRecordDecl *RD = T->getAsCXXRecordDecl()) | |||
4772 | if (CXXDestructorDecl *Destructor = Self.LookupDestructor(RD)) | |||
4773 | return Destructor->isVirtual(); | |||
4774 | return false; | |||
4775 | ||||
4776 | // These type trait expressions are modeled on the specifications for the | |||
4777 | // Embarcadero C++0x type trait functions: | |||
4778 | // http://docwiki.embarcadero.com/RADStudio/XE/en/Type_Trait_Functions_(C%2B%2B0x)_Index | |||
4779 | case UTT_IsCompleteType: | |||
4780 | // http://docwiki.embarcadero.com/RADStudio/XE/en/Is_complete_type_(typename_T_): | |||
4781 | // Returns True if and only if T is a complete type at the point of the | |||
4782 | // function call. | |||
4783 | return !T->isIncompleteType(); | |||
4784 | case UTT_HasUniqueObjectRepresentations: | |||
4785 | return C.hasUniqueObjectRepresentations(T); | |||
4786 | } | |||
4787 | } | |||
4788 | ||||
4789 | static bool EvaluateBinaryTypeTrait(Sema &Self, TypeTrait BTT, QualType LhsT, | |||
4790 | QualType RhsT, SourceLocation KeyLoc); | |||
4791 | ||||
4792 | static bool evaluateTypeTrait(Sema &S, TypeTrait Kind, SourceLocation KWLoc, | |||
4793 | ArrayRef<TypeSourceInfo *> Args, | |||
4794 | SourceLocation RParenLoc) { | |||
4795 | if (Kind <= UTT_Last) | |||
4796 | return EvaluateUnaryTypeTrait(S, Kind, KWLoc, Args[0]->getType()); | |||
4797 | ||||
4798 | // Evaluate BTT_ReferenceBindsToTemporary alongside the IsConstructible | |||
4799 | // traits to avoid duplication. | |||
4800 | if (Kind <= BTT_Last && Kind != BTT_ReferenceBindsToTemporary) | |||
4801 | return EvaluateBinaryTypeTrait(S, Kind, Args[0]->getType(), | |||
4802 | Args[1]->getType(), RParenLoc); | |||
4803 | ||||
4804 | switch (Kind) { | |||
4805 | case clang::BTT_ReferenceBindsToTemporary: | |||
4806 | case clang::TT_IsConstructible: | |||
4807 | case clang::TT_IsNothrowConstructible: | |||
4808 | case clang::TT_IsTriviallyConstructible: { | |||
4809 | // C++11 [meta.unary.prop]: | |||
4810 | // is_trivially_constructible is defined as: | |||
4811 | // | |||
4812 | // is_constructible<T, Args...>::value is true and the variable | |||
4813 | // definition for is_constructible, as defined below, is known to call | |||
4814 | // no operation that is not trivial. | |||
4815 | // | |||
4816 | // The predicate condition for a template specialization | |||
4817 | // is_constructible<T, Args...> shall be satisfied if and only if the | |||
4818 | // following variable definition would be well-formed for some invented | |||
4819 | // variable t: | |||
4820 | // | |||
4821 | // T t(create<Args>()...); | |||
4822 | assert(!Args.empty())(static_cast <bool> (!Args.empty()) ? void (0) : __assert_fail ("!Args.empty()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4822, __extension__ __PRETTY_FUNCTION__)); | |||
4823 | ||||
4824 | // Precondition: T and all types in the parameter pack Args shall be | |||
4825 | // complete types, (possibly cv-qualified) void, or arrays of | |||
4826 | // unknown bound. | |||
4827 | for (const auto *TSI : Args) { | |||
4828 | QualType ArgTy = TSI->getType(); | |||
4829 | if (ArgTy->isVoidType() || ArgTy->isIncompleteArrayType()) | |||
4830 | continue; | |||
4831 | ||||
4832 | if (S.RequireCompleteType(KWLoc, ArgTy, | |||
4833 | diag::err_incomplete_type_used_in_type_trait_expr)) | |||
4834 | return false; | |||
4835 | } | |||
4836 | ||||
4837 | // Make sure the first argument is not incomplete nor a function type. | |||
4838 | QualType T = Args[0]->getType(); | |||
4839 | if (T->isIncompleteType() || T->isFunctionType()) | |||
4840 | return false; | |||
4841 | ||||
4842 | // Make sure the first argument is not an abstract type. | |||
4843 | CXXRecordDecl *RD = T->getAsCXXRecordDecl(); | |||
4844 | if (RD && RD->isAbstract()) | |||
4845 | return false; | |||
4846 | ||||
4847 | SmallVector<OpaqueValueExpr, 2> OpaqueArgExprs; | |||
4848 | SmallVector<Expr *, 2> ArgExprs; | |||
4849 | ArgExprs.reserve(Args.size() - 1); | |||
4850 | for (unsigned I = 1, N = Args.size(); I != N; ++I) { | |||
4851 | QualType ArgTy = Args[I]->getType(); | |||
4852 | if (ArgTy->isObjectType() || ArgTy->isFunctionType()) | |||
4853 | ArgTy = S.Context.getRValueReferenceType(ArgTy); | |||
4854 | OpaqueArgExprs.push_back( | |||
4855 | OpaqueValueExpr(Args[I]->getTypeLoc().getLocStart(), | |||
4856 | ArgTy.getNonLValueExprType(S.Context), | |||
4857 | Expr::getValueKindForType(ArgTy))); | |||
4858 | } | |||
4859 | for (Expr &E : OpaqueArgExprs) | |||
4860 | ArgExprs.push_back(&E); | |||
4861 | ||||
4862 | // Perform the initialization in an unevaluated context within a SFINAE | |||
4863 | // trap at translation unit scope. | |||
4864 | EnterExpressionEvaluationContext Unevaluated( | |||
4865 | S, Sema::ExpressionEvaluationContext::Unevaluated); | |||
4866 | Sema::SFINAETrap SFINAE(S, /*AccessCheckingSFINAE=*/true); | |||
4867 | Sema::ContextRAII TUContext(S, S.Context.getTranslationUnitDecl()); | |||
4868 | InitializedEntity To(InitializedEntity::InitializeTemporary(Args[0])); | |||
4869 | InitializationKind InitKind(InitializationKind::CreateDirect(KWLoc, KWLoc, | |||
4870 | RParenLoc)); | |||
4871 | InitializationSequence Init(S, To, InitKind, ArgExprs); | |||
4872 | if (Init.Failed()) | |||
4873 | return false; | |||
4874 | ||||
4875 | ExprResult Result = Init.Perform(S, To, InitKind, ArgExprs); | |||
4876 | if (Result.isInvalid() || SFINAE.hasErrorOccurred()) | |||
4877 | return false; | |||
4878 | ||||
4879 | if (Kind == clang::TT_IsConstructible) | |||
4880 | return true; | |||
4881 | ||||
4882 | if (Kind == clang::BTT_ReferenceBindsToTemporary) { | |||
4883 | if (!T->isReferenceType()) | |||
4884 | return false; | |||
4885 | ||||
4886 | return !Init.isDirectReferenceBinding(); | |||
4887 | } | |||
4888 | ||||
4889 | if (Kind == clang::TT_IsNothrowConstructible) | |||
4890 | return S.canThrow(Result.get()) == CT_Cannot; | |||
4891 | ||||
4892 | if (Kind == clang::TT_IsTriviallyConstructible) { | |||
4893 | // Under Objective-C ARC and Weak, if the destination has non-trivial | |||
4894 | // Objective-C lifetime, this is a non-trivial construction. | |||
4895 | if (T.getNonReferenceType().hasNonTrivialObjCLifetime()) | |||
4896 | return false; | |||
4897 | ||||
4898 | // The initialization succeeded; now make sure there are no non-trivial | |||
4899 | // calls. | |||
4900 | return !Result.get()->hasNonTrivialCall(S.Context); | |||
4901 | } | |||
4902 | ||||
4903 | llvm_unreachable("unhandled type trait")::llvm::llvm_unreachable_internal("unhandled type trait", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4903); | |||
4904 | return false; | |||
4905 | } | |||
4906 | default: llvm_unreachable("not a TT")::llvm::llvm_unreachable_internal("not a TT", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4906); | |||
4907 | } | |||
4908 | ||||
4909 | return false; | |||
4910 | } | |||
4911 | ||||
4912 | ExprResult Sema::BuildTypeTrait(TypeTrait Kind, SourceLocation KWLoc, | |||
4913 | ArrayRef<TypeSourceInfo *> Args, | |||
4914 | SourceLocation RParenLoc) { | |||
4915 | QualType ResultType = Context.getLogicalOperationType(); | |||
4916 | ||||
4917 | if (Kind <= UTT_Last && !CheckUnaryTypeTraitTypeCompleteness( | |||
4918 | *this, Kind, KWLoc, Args[0]->getType())) | |||
4919 | return ExprError(); | |||
4920 | ||||
4921 | bool Dependent = false; | |||
4922 | for (unsigned I = 0, N = Args.size(); I != N; ++I) { | |||
4923 | if (Args[I]->getType()->isDependentType()) { | |||
4924 | Dependent = true; | |||
4925 | break; | |||
4926 | } | |||
4927 | } | |||
4928 | ||||
4929 | bool Result = false; | |||
4930 | if (!Dependent) | |||
4931 | Result = evaluateTypeTrait(*this, Kind, KWLoc, Args, RParenLoc); | |||
4932 | ||||
4933 | return TypeTraitExpr::Create(Context, ResultType, KWLoc, Kind, Args, | |||
4934 | RParenLoc, Result); | |||
4935 | } | |||
4936 | ||||
4937 | ExprResult Sema::ActOnTypeTrait(TypeTrait Kind, SourceLocation KWLoc, | |||
4938 | ArrayRef<ParsedType> Args, | |||
4939 | SourceLocation RParenLoc) { | |||
4940 | SmallVector<TypeSourceInfo *, 4> ConvertedArgs; | |||
4941 | ConvertedArgs.reserve(Args.size()); | |||
4942 | ||||
4943 | for (unsigned I = 0, N = Args.size(); I != N; ++I) { | |||
4944 | TypeSourceInfo *TInfo; | |||
4945 | QualType T = GetTypeFromParser(Args[I], &TInfo); | |||
4946 | if (!TInfo) | |||
4947 | TInfo = Context.getTrivialTypeSourceInfo(T, KWLoc); | |||
4948 | ||||
4949 | ConvertedArgs.push_back(TInfo); | |||
4950 | } | |||
4951 | ||||
4952 | return BuildTypeTrait(Kind, KWLoc, ConvertedArgs, RParenLoc); | |||
4953 | } | |||
4954 | ||||
4955 | static bool EvaluateBinaryTypeTrait(Sema &Self, TypeTrait BTT, QualType LhsT, | |||
4956 | QualType RhsT, SourceLocation KeyLoc) { | |||
4957 | assert(!LhsT->isDependentType() && !RhsT->isDependentType() &&(static_cast <bool> (!LhsT->isDependentType() && !RhsT->isDependentType() && "Cannot evaluate traits of dependent types" ) ? void (0) : __assert_fail ("!LhsT->isDependentType() && !RhsT->isDependentType() && \"Cannot evaluate traits of dependent types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4958, __extension__ __PRETTY_FUNCTION__)) | |||
4958 | "Cannot evaluate traits of dependent types")(static_cast <bool> (!LhsT->isDependentType() && !RhsT->isDependentType() && "Cannot evaluate traits of dependent types" ) ? void (0) : __assert_fail ("!LhsT->isDependentType() && !RhsT->isDependentType() && \"Cannot evaluate traits of dependent types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4958, __extension__ __PRETTY_FUNCTION__)); | |||
4959 | ||||
4960 | switch(BTT) { | |||
4961 | case BTT_IsBaseOf: { | |||
4962 | // C++0x [meta.rel]p2 | |||
4963 | // Base is a base class of Derived without regard to cv-qualifiers or | |||
4964 | // Base and Derived are not unions and name the same class type without | |||
4965 | // regard to cv-qualifiers. | |||
4966 | ||||
4967 | const RecordType *lhsRecord = LhsT->getAs<RecordType>(); | |||
4968 | const RecordType *rhsRecord = RhsT->getAs<RecordType>(); | |||
4969 | if (!rhsRecord || !lhsRecord) { | |||
4970 | const ObjCObjectType *LHSObjTy = LhsT->getAs<ObjCObjectType>(); | |||
4971 | const ObjCObjectType *RHSObjTy = RhsT->getAs<ObjCObjectType>(); | |||
4972 | if (!LHSObjTy || !RHSObjTy) | |||
4973 | return false; | |||
4974 | ||||
4975 | ObjCInterfaceDecl *BaseInterface = LHSObjTy->getInterface(); | |||
4976 | ObjCInterfaceDecl *DerivedInterface = RHSObjTy->getInterface(); | |||
4977 | if (!BaseInterface || !DerivedInterface) | |||
4978 | return false; | |||
4979 | ||||
4980 | if (Self.RequireCompleteType( | |||
4981 | KeyLoc, RhsT, diag::err_incomplete_type_used_in_type_trait_expr)) | |||
4982 | return false; | |||
4983 | ||||
4984 | return BaseInterface->isSuperClassOf(DerivedInterface); | |||
4985 | } | |||
4986 | ||||
4987 | assert(Self.Context.hasSameUnqualifiedType(LhsT, RhsT)(static_cast <bool> (Self.Context.hasSameUnqualifiedType (LhsT, RhsT) == (lhsRecord == rhsRecord)) ? void (0) : __assert_fail ("Self.Context.hasSameUnqualifiedType(LhsT, RhsT) == (lhsRecord == rhsRecord)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4988, __extension__ __PRETTY_FUNCTION__)) | |||
4988 | == (lhsRecord == rhsRecord))(static_cast <bool> (Self.Context.hasSameUnqualifiedType (LhsT, RhsT) == (lhsRecord == rhsRecord)) ? void (0) : __assert_fail ("Self.Context.hasSameUnqualifiedType(LhsT, RhsT) == (lhsRecord == rhsRecord)" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 4988, __extension__ __PRETTY_FUNCTION__)); | |||
4989 | ||||
4990 | if (lhsRecord == rhsRecord) | |||
4991 | return !lhsRecord->getDecl()->isUnion(); | |||
4992 | ||||
4993 | // C++0x [meta.rel]p2: | |||
4994 | // If Base and Derived are class types and are different types | |||
4995 | // (ignoring possible cv-qualifiers) then Derived shall be a | |||
4996 | // complete type. | |||
4997 | if (Self.RequireCompleteType(KeyLoc, RhsT, | |||
4998 | diag::err_incomplete_type_used_in_type_trait_expr)) | |||
4999 | return false; | |||
5000 | ||||
5001 | return cast<CXXRecordDecl>(rhsRecord->getDecl()) | |||
5002 | ->isDerivedFrom(cast<CXXRecordDecl>(lhsRecord->getDecl())); | |||
5003 | } | |||
5004 | case BTT_IsSame: | |||
5005 | return Self.Context.hasSameType(LhsT, RhsT); | |||
5006 | case BTT_TypeCompatible: { | |||
5007 | // GCC ignores cv-qualifiers on arrays for this builtin. | |||
5008 | Qualifiers LhsQuals, RhsQuals; | |||
5009 | QualType Lhs = Self.getASTContext().getUnqualifiedArrayType(LhsT, LhsQuals); | |||
5010 | QualType Rhs = Self.getASTContext().getUnqualifiedArrayType(RhsT, RhsQuals); | |||
5011 | return Self.Context.typesAreCompatible(Lhs, Rhs); | |||
5012 | } | |||
5013 | case BTT_IsConvertible: | |||
5014 | case BTT_IsConvertibleTo: { | |||
5015 | // C++0x [meta.rel]p4: | |||
5016 | // Given the following function prototype: | |||
5017 | // | |||
5018 | // template <class T> | |||
5019 | // typename add_rvalue_reference<T>::type create(); | |||
5020 | // | |||
5021 | // the predicate condition for a template specialization | |||
5022 | // is_convertible<From, To> shall be satisfied if and only if | |||
5023 | // the return expression in the following code would be | |||
5024 | // well-formed, including any implicit conversions to the return | |||
5025 | // type of the function: | |||
5026 | // | |||
5027 | // To test() { | |||
5028 | // return create<From>(); | |||
5029 | // } | |||
5030 | // | |||
5031 | // Access checking is performed as if in a context unrelated to To and | |||
5032 | // From. Only the validity of the immediate context of the expression | |||
5033 | // of the return-statement (including conversions to the return type) | |||
5034 | // is considered. | |||
5035 | // | |||
5036 | // We model the initialization as a copy-initialization of a temporary | |||
5037 | // of the appropriate type, which for this expression is identical to the | |||
5038 | // return statement (since NRVO doesn't apply). | |||
5039 | ||||
5040 | // Functions aren't allowed to return function or array types. | |||
5041 | if (RhsT->isFunctionType() || RhsT->isArrayType()) | |||
5042 | return false; | |||
5043 | ||||
5044 | // A return statement in a void function must have void type. | |||
5045 | if (RhsT->isVoidType()) | |||
5046 | return LhsT->isVoidType(); | |||
5047 | ||||
5048 | // A function definition requires a complete, non-abstract return type. | |||
5049 | if (!Self.isCompleteType(KeyLoc, RhsT) || Self.isAbstractType(KeyLoc, RhsT)) | |||
5050 | return false; | |||
5051 | ||||
5052 | // Compute the result of add_rvalue_reference. | |||
5053 | if (LhsT->isObjectType() || LhsT->isFunctionType()) | |||
5054 | LhsT = Self.Context.getRValueReferenceType(LhsT); | |||
5055 | ||||
5056 | // Build a fake source and destination for initialization. | |||
5057 | InitializedEntity To(InitializedEntity::InitializeTemporary(RhsT)); | |||
5058 | OpaqueValueExpr From(KeyLoc, LhsT.getNonLValueExprType(Self.Context), | |||
5059 | Expr::getValueKindForType(LhsT)); | |||
5060 | Expr *FromPtr = &From; | |||
5061 | InitializationKind Kind(InitializationKind::CreateCopy(KeyLoc, | |||
5062 | SourceLocation())); | |||
5063 | ||||
5064 | // Perform the initialization in an unevaluated context within a SFINAE | |||
5065 | // trap at translation unit scope. | |||
5066 | EnterExpressionEvaluationContext Unevaluated( | |||
5067 | Self, Sema::ExpressionEvaluationContext::Unevaluated); | |||
5068 | Sema::SFINAETrap SFINAE(Self, /*AccessCheckingSFINAE=*/true); | |||
5069 | Sema::ContextRAII TUContext(Self, Self.Context.getTranslationUnitDecl()); | |||
5070 | InitializationSequence Init(Self, To, Kind, FromPtr); | |||
5071 | if (Init.Failed()) | |||
5072 | return false; | |||
5073 | ||||
5074 | ExprResult Result = Init.Perform(Self, To, Kind, FromPtr); | |||
5075 | return !Result.isInvalid() && !SFINAE.hasErrorOccurred(); | |||
5076 | } | |||
5077 | ||||
5078 | case BTT_IsAssignable: | |||
5079 | case BTT_IsNothrowAssignable: | |||
5080 | case BTT_IsTriviallyAssignable: { | |||
5081 | // C++11 [meta.unary.prop]p3: | |||
5082 | // is_trivially_assignable is defined as: | |||
5083 | // is_assignable<T, U>::value is true and the assignment, as defined by | |||
5084 | // is_assignable, is known to call no operation that is not trivial | |||
5085 | // | |||
5086 | // is_assignable is defined as: | |||
5087 | // The expression declval<T>() = declval<U>() is well-formed when | |||
5088 | // treated as an unevaluated operand (Clause 5). | |||
5089 | // | |||
5090 | // For both, T and U shall be complete types, (possibly cv-qualified) | |||
5091 | // void, or arrays of unknown bound. | |||
5092 | if (!LhsT->isVoidType() && !LhsT->isIncompleteArrayType() && | |||
5093 | Self.RequireCompleteType(KeyLoc, LhsT, | |||
5094 | diag::err_incomplete_type_used_in_type_trait_expr)) | |||
5095 | return false; | |||
5096 | if (!RhsT->isVoidType() && !RhsT->isIncompleteArrayType() && | |||
5097 | Self.RequireCompleteType(KeyLoc, RhsT, | |||
5098 | diag::err_incomplete_type_used_in_type_trait_expr)) | |||
5099 | return false; | |||
5100 | ||||
5101 | // cv void is never assignable. | |||
5102 | if (LhsT->isVoidType() || RhsT->isVoidType()) | |||
5103 | return false; | |||
5104 | ||||
5105 | // Build expressions that emulate the effect of declval<T>() and | |||
5106 | // declval<U>(). | |||
5107 | if (LhsT->isObjectType() || LhsT->isFunctionType()) | |||
5108 | LhsT = Self.Context.getRValueReferenceType(LhsT); | |||
5109 | if (RhsT->isObjectType() || RhsT->isFunctionType()) | |||
5110 | RhsT = Self.Context.getRValueReferenceType(RhsT); | |||
5111 | OpaqueValueExpr Lhs(KeyLoc, LhsT.getNonLValueExprType(Self.Context), | |||
5112 | Expr::getValueKindForType(LhsT)); | |||
5113 | OpaqueValueExpr Rhs(KeyLoc, RhsT.getNonLValueExprType(Self.Context), | |||
5114 | Expr::getValueKindForType(RhsT)); | |||
5115 | ||||
5116 | // Attempt the assignment in an unevaluated context within a SFINAE | |||
5117 | // trap at translation unit scope. | |||
5118 | EnterExpressionEvaluationContext Unevaluated( | |||
5119 | Self, Sema::ExpressionEvaluationContext::Unevaluated); | |||
5120 | Sema::SFINAETrap SFINAE(Self, /*AccessCheckingSFINAE=*/true); | |||
5121 | Sema::ContextRAII TUContext(Self, Self.Context.getTranslationUnitDecl()); | |||
5122 | ExprResult Result = Self.BuildBinOp(/*S=*/nullptr, KeyLoc, BO_Assign, &Lhs, | |||
5123 | &Rhs); | |||
5124 | if (Result.isInvalid() || SFINAE.hasErrorOccurred()) | |||
5125 | return false; | |||
5126 | ||||
5127 | if (BTT == BTT_IsAssignable) | |||
5128 | return true; | |||
5129 | ||||
5130 | if (BTT == BTT_IsNothrowAssignable) | |||
5131 | return Self.canThrow(Result.get()) == CT_Cannot; | |||
5132 | ||||
5133 | if (BTT == BTT_IsTriviallyAssignable) { | |||
5134 | // Under Objective-C ARC and Weak, if the destination has non-trivial | |||
5135 | // Objective-C lifetime, this is a non-trivial assignment. | |||
5136 | if (LhsT.getNonReferenceType().hasNonTrivialObjCLifetime()) | |||
5137 | return false; | |||
5138 | ||||
5139 | return !Result.get()->hasNonTrivialCall(Self.Context); | |||
5140 | } | |||
5141 | ||||
5142 | llvm_unreachable("unhandled type trait")::llvm::llvm_unreachable_internal("unhandled type trait", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5142); | |||
5143 | return false; | |||
5144 | } | |||
5145 | default: llvm_unreachable("not a BTT")::llvm::llvm_unreachable_internal("not a BTT", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5145); | |||
5146 | } | |||
5147 | llvm_unreachable("Unknown type trait or not implemented")::llvm::llvm_unreachable_internal("Unknown type trait or not implemented" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5147); | |||
5148 | } | |||
5149 | ||||
5150 | ExprResult Sema::ActOnArrayTypeTrait(ArrayTypeTrait ATT, | |||
5151 | SourceLocation KWLoc, | |||
5152 | ParsedType Ty, | |||
5153 | Expr* DimExpr, | |||
5154 | SourceLocation RParen) { | |||
5155 | TypeSourceInfo *TSInfo; | |||
5156 | QualType T = GetTypeFromParser(Ty, &TSInfo); | |||
5157 | if (!TSInfo) | |||
5158 | TSInfo = Context.getTrivialTypeSourceInfo(T); | |||
5159 | ||||
5160 | return BuildArrayTypeTrait(ATT, KWLoc, TSInfo, DimExpr, RParen); | |||
5161 | } | |||
5162 | ||||
5163 | static uint64_t EvaluateArrayTypeTrait(Sema &Self, ArrayTypeTrait ATT, | |||
5164 | QualType T, Expr *DimExpr, | |||
5165 | SourceLocation KeyLoc) { | |||
5166 | assert(!T->isDependentType() && "Cannot evaluate traits of dependent type")(static_cast <bool> (!T->isDependentType() && "Cannot evaluate traits of dependent type") ? void (0) : __assert_fail ("!T->isDependentType() && \"Cannot evaluate traits of dependent type\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5166, __extension__ __PRETTY_FUNCTION__)); | |||
5167 | ||||
5168 | switch(ATT) { | |||
5169 | case ATT_ArrayRank: | |||
5170 | if (T->isArrayType()) { | |||
5171 | unsigned Dim = 0; | |||
5172 | while (const ArrayType *AT = Self.Context.getAsArrayType(T)) { | |||
5173 | ++Dim; | |||
5174 | T = AT->getElementType(); | |||
5175 | } | |||
5176 | return Dim; | |||
5177 | } | |||
5178 | return 0; | |||
5179 | ||||
5180 | case ATT_ArrayExtent: { | |||
5181 | llvm::APSInt Value; | |||
5182 | uint64_t Dim; | |||
5183 | if (Self.VerifyIntegerConstantExpression(DimExpr, &Value, | |||
5184 | diag::err_dimension_expr_not_constant_integer, | |||
5185 | false).isInvalid()) | |||
5186 | return 0; | |||
5187 | if (Value.isSigned() && Value.isNegative()) { | |||
5188 | Self.Diag(KeyLoc, diag::err_dimension_expr_not_constant_integer) | |||
5189 | << DimExpr->getSourceRange(); | |||
5190 | return 0; | |||
5191 | } | |||
5192 | Dim = Value.getLimitedValue(); | |||
5193 | ||||
5194 | if (T->isArrayType()) { | |||
5195 | unsigned D = 0; | |||
5196 | bool Matched = false; | |||
5197 | while (const ArrayType *AT = Self.Context.getAsArrayType(T)) { | |||
5198 | if (Dim == D) { | |||
5199 | Matched = true; | |||
5200 | break; | |||
5201 | } | |||
5202 | ++D; | |||
5203 | T = AT->getElementType(); | |||
5204 | } | |||
5205 | ||||
5206 | if (Matched && T->isArrayType()) { | |||
5207 | if (const ConstantArrayType *CAT = Self.Context.getAsConstantArrayType(T)) | |||
5208 | return CAT->getSize().getLimitedValue(); | |||
5209 | } | |||
5210 | } | |||
5211 | return 0; | |||
5212 | } | |||
5213 | } | |||
5214 | llvm_unreachable("Unknown type trait or not implemented")::llvm::llvm_unreachable_internal("Unknown type trait or not implemented" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5214); | |||
5215 | } | |||
5216 | ||||
5217 | ExprResult Sema::BuildArrayTypeTrait(ArrayTypeTrait ATT, | |||
5218 | SourceLocation KWLoc, | |||
5219 | TypeSourceInfo *TSInfo, | |||
5220 | Expr* DimExpr, | |||
5221 | SourceLocation RParen) { | |||
5222 | QualType T = TSInfo->getType(); | |||
5223 | ||||
5224 | // FIXME: This should likely be tracked as an APInt to remove any host | |||
5225 | // assumptions about the width of size_t on the target. | |||
5226 | uint64_t Value = 0; | |||
5227 | if (!T->isDependentType()) | |||
5228 | Value = EvaluateArrayTypeTrait(*this, ATT, T, DimExpr, KWLoc); | |||
5229 | ||||
5230 | // While the specification for these traits from the Embarcadero C++ | |||
5231 | // compiler's documentation says the return type is 'unsigned int', Clang | |||
5232 | // returns 'size_t'. On Windows, the primary platform for the Embarcadero | |||
5233 | // compiler, there is no difference. On several other platforms this is an | |||
5234 | // important distinction. | |||
5235 | return new (Context) ArrayTypeTraitExpr(KWLoc, ATT, TSInfo, Value, DimExpr, | |||
5236 | RParen, Context.getSizeType()); | |||
5237 | } | |||
5238 | ||||
5239 | ExprResult Sema::ActOnExpressionTrait(ExpressionTrait ET, | |||
5240 | SourceLocation KWLoc, | |||
5241 | Expr *Queried, | |||
5242 | SourceLocation RParen) { | |||
5243 | // If error parsing the expression, ignore. | |||
5244 | if (!Queried) | |||
5245 | return ExprError(); | |||
5246 | ||||
5247 | ExprResult Result = BuildExpressionTrait(ET, KWLoc, Queried, RParen); | |||
5248 | ||||
5249 | return Result; | |||
5250 | } | |||
5251 | ||||
5252 | static bool EvaluateExpressionTrait(ExpressionTrait ET, Expr *E) { | |||
5253 | switch (ET) { | |||
5254 | case ET_IsLValueExpr: return E->isLValue(); | |||
5255 | case ET_IsRValueExpr: return E->isRValue(); | |||
5256 | } | |||
5257 | llvm_unreachable("Expression trait not covered by switch")::llvm::llvm_unreachable_internal("Expression trait not covered by switch" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5257); | |||
5258 | } | |||
5259 | ||||
5260 | ExprResult Sema::BuildExpressionTrait(ExpressionTrait ET, | |||
5261 | SourceLocation KWLoc, | |||
5262 | Expr *Queried, | |||
5263 | SourceLocation RParen) { | |||
5264 | if (Queried->isTypeDependent()) { | |||
5265 | // Delay type-checking for type-dependent expressions. | |||
5266 | } else if (Queried->getType()->isPlaceholderType()) { | |||
5267 | ExprResult PE = CheckPlaceholderExpr(Queried); | |||
5268 | if (PE.isInvalid()) return ExprError(); | |||
5269 | return BuildExpressionTrait(ET, KWLoc, PE.get(), RParen); | |||
5270 | } | |||
5271 | ||||
5272 | bool Value = EvaluateExpressionTrait(ET, Queried); | |||
5273 | ||||
5274 | return new (Context) | |||
5275 | ExpressionTraitExpr(KWLoc, ET, Queried, Value, RParen, Context.BoolTy); | |||
5276 | } | |||
5277 | ||||
5278 | QualType Sema::CheckPointerToMemberOperands(ExprResult &LHS, ExprResult &RHS, | |||
5279 | ExprValueKind &VK, | |||
5280 | SourceLocation Loc, | |||
5281 | bool isIndirect) { | |||
5282 | assert(!LHS.get()->getType()->isPlaceholderType() &&(static_cast <bool> (!LHS.get()->getType()->isPlaceholderType () && !RHS.get()->getType()->isPlaceholderType( ) && "placeholders should have been weeded out by now" ) ? void (0) : __assert_fail ("!LHS.get()->getType()->isPlaceholderType() && !RHS.get()->getType()->isPlaceholderType() && \"placeholders should have been weeded out by now\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5284, __extension__ __PRETTY_FUNCTION__)) | |||
5283 | !RHS.get()->getType()->isPlaceholderType() &&(static_cast <bool> (!LHS.get()->getType()->isPlaceholderType () && !RHS.get()->getType()->isPlaceholderType( ) && "placeholders should have been weeded out by now" ) ? void (0) : __assert_fail ("!LHS.get()->getType()->isPlaceholderType() && !RHS.get()->getType()->isPlaceholderType() && \"placeholders should have been weeded out by now\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5284, __extension__ __PRETTY_FUNCTION__)) | |||
5284 | "placeholders should have been weeded out by now")(static_cast <bool> (!LHS.get()->getType()->isPlaceholderType () && !RHS.get()->getType()->isPlaceholderType( ) && "placeholders should have been weeded out by now" ) ? void (0) : __assert_fail ("!LHS.get()->getType()->isPlaceholderType() && !RHS.get()->getType()->isPlaceholderType() && \"placeholders should have been weeded out by now\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5284, __extension__ __PRETTY_FUNCTION__)); | |||
5285 | ||||
5286 | // The LHS undergoes lvalue conversions if this is ->*, and undergoes the | |||
5287 | // temporary materialization conversion otherwise. | |||
5288 | if (isIndirect) | |||
5289 | LHS = DefaultLvalueConversion(LHS.get()); | |||
5290 | else if (LHS.get()->isRValue()) | |||
5291 | LHS = TemporaryMaterializationConversion(LHS.get()); | |||
5292 | if (LHS.isInvalid()) | |||
5293 | return QualType(); | |||
5294 | ||||
5295 | // The RHS always undergoes lvalue conversions. | |||
5296 | RHS = DefaultLvalueConversion(RHS.get()); | |||
5297 | if (RHS.isInvalid()) return QualType(); | |||
5298 | ||||
5299 | const char *OpSpelling = isIndirect ? "->*" : ".*"; | |||
5300 | // C++ 5.5p2 | |||
5301 | // The binary operator .* [p3: ->*] binds its second operand, which shall | |||
5302 | // be of type "pointer to member of T" (where T is a completely-defined | |||
5303 | // class type) [...] | |||
5304 | QualType RHSType = RHS.get()->getType(); | |||
5305 | const MemberPointerType *MemPtr = RHSType->getAs<MemberPointerType>(); | |||
5306 | if (!MemPtr) { | |||
5307 | Diag(Loc, diag::err_bad_memptr_rhs) | |||
5308 | << OpSpelling << RHSType << RHS.get()->getSourceRange(); | |||
5309 | return QualType(); | |||
5310 | } | |||
5311 | ||||
5312 | QualType Class(MemPtr->getClass(), 0); | |||
5313 | ||||
5314 | // Note: C++ [expr.mptr.oper]p2-3 says that the class type into which the | |||
5315 | // member pointer points must be completely-defined. However, there is no | |||
5316 | // reason for this semantic distinction, and the rule is not enforced by | |||
5317 | // other compilers. Therefore, we do not check this property, as it is | |||
5318 | // likely to be considered a defect. | |||
5319 | ||||
5320 | // C++ 5.5p2 | |||
5321 | // [...] to its first operand, which shall be of class T or of a class of | |||
5322 | // which T is an unambiguous and accessible base class. [p3: a pointer to | |||
5323 | // such a class] | |||
5324 | QualType LHSType = LHS.get()->getType(); | |||
5325 | if (isIndirect) { | |||
5326 | if (const PointerType *Ptr = LHSType->getAs<PointerType>()) | |||
5327 | LHSType = Ptr->getPointeeType(); | |||
5328 | else { | |||
5329 | Diag(Loc, diag::err_bad_memptr_lhs) | |||
5330 | << OpSpelling << 1 << LHSType | |||
5331 | << FixItHint::CreateReplacement(SourceRange(Loc), ".*"); | |||
5332 | return QualType(); | |||
5333 | } | |||
5334 | } | |||
5335 | ||||
5336 | if (!Context.hasSameUnqualifiedType(Class, LHSType)) { | |||
5337 | // If we want to check the hierarchy, we need a complete type. | |||
5338 | if (RequireCompleteType(Loc, LHSType, diag::err_bad_memptr_lhs, | |||
5339 | OpSpelling, (int)isIndirect)) { | |||
5340 | return QualType(); | |||
5341 | } | |||
5342 | ||||
5343 | if (!IsDerivedFrom(Loc, LHSType, Class)) { | |||
5344 | Diag(Loc, diag::err_bad_memptr_lhs) << OpSpelling | |||
5345 | << (int)isIndirect << LHS.get()->getType(); | |||
5346 | return QualType(); | |||
5347 | } | |||
5348 | ||||
5349 | CXXCastPath BasePath; | |||
5350 | if (CheckDerivedToBaseConversion(LHSType, Class, Loc, | |||
5351 | SourceRange(LHS.get()->getLocStart(), | |||
5352 | RHS.get()->getLocEnd()), | |||
5353 | &BasePath)) | |||
5354 | return QualType(); | |||
5355 | ||||
5356 | // Cast LHS to type of use. | |||
5357 | QualType UseType = Context.getQualifiedType(Class, LHSType.getQualifiers()); | |||
5358 | if (isIndirect) | |||
5359 | UseType = Context.getPointerType(UseType); | |||
5360 | ExprValueKind VK = isIndirect ? VK_RValue : LHS.get()->getValueKind(); | |||
5361 | LHS = ImpCastExprToType(LHS.get(), UseType, CK_DerivedToBase, VK, | |||
5362 | &BasePath); | |||
5363 | } | |||
5364 | ||||
5365 | if (isa<CXXScalarValueInitExpr>(RHS.get()->IgnoreParens())) { | |||
5366 | // Diagnose use of pointer-to-member type which when used as | |||
5367 | // the functional cast in a pointer-to-member expression. | |||
5368 | Diag(Loc, diag::err_pointer_to_member_type) << isIndirect; | |||
5369 | return QualType(); | |||
5370 | } | |||
5371 | ||||
5372 | // C++ 5.5p2 | |||
5373 | // The result is an object or a function of the type specified by the | |||
5374 | // second operand. | |||
5375 | // The cv qualifiers are the union of those in the pointer and the left side, | |||
5376 | // in accordance with 5.5p5 and 5.2.5. | |||
5377 | QualType Result = MemPtr->getPointeeType(); | |||
5378 | Result = Context.getCVRQualifiedType(Result, LHSType.getCVRQualifiers()); | |||
5379 | ||||
5380 | // C++0x [expr.mptr.oper]p6: | |||
5381 | // In a .* expression whose object expression is an rvalue, the program is | |||
5382 | // ill-formed if the second operand is a pointer to member function with | |||
5383 | // ref-qualifier &. In a ->* expression or in a .* expression whose object | |||
5384 | // expression is an lvalue, the program is ill-formed if the second operand | |||
5385 | // is a pointer to member function with ref-qualifier &&. | |||
5386 | if (const FunctionProtoType *Proto = Result->getAs<FunctionProtoType>()) { | |||
5387 | switch (Proto->getRefQualifier()) { | |||
5388 | case RQ_None: | |||
5389 | // Do nothing | |||
5390 | break; | |||
5391 | ||||
5392 | case RQ_LValue: | |||
5393 | if (!isIndirect && !LHS.get()->Classify(Context).isLValue()) { | |||
5394 | // C++2a allows functions with ref-qualifier & if they are also 'const'. | |||
5395 | if (Proto->isConst()) | |||
5396 | Diag(Loc, getLangOpts().CPlusPlus2a | |||
5397 | ? diag::warn_cxx17_compat_pointer_to_const_ref_member_on_rvalue | |||
5398 | : diag::ext_pointer_to_const_ref_member_on_rvalue); | |||
5399 | else | |||
5400 | Diag(Loc, diag::err_pointer_to_member_oper_value_classify) | |||
5401 | << RHSType << 1 << LHS.get()->getSourceRange(); | |||
5402 | } | |||
5403 | break; | |||
5404 | ||||
5405 | case RQ_RValue: | |||
5406 | if (isIndirect || !LHS.get()->Classify(Context).isRValue()) | |||
5407 | Diag(Loc, diag::err_pointer_to_member_oper_value_classify) | |||
5408 | << RHSType << 0 << LHS.get()->getSourceRange(); | |||
5409 | break; | |||
5410 | } | |||
5411 | } | |||
5412 | ||||
5413 | // C++ [expr.mptr.oper]p6: | |||
5414 | // The result of a .* expression whose second operand is a pointer | |||
5415 | // to a data member is of the same value category as its | |||
5416 | // first operand. The result of a .* expression whose second | |||
5417 | // operand is a pointer to a member function is a prvalue. The | |||
5418 | // result of an ->* expression is an lvalue if its second operand | |||
5419 | // is a pointer to data member and a prvalue otherwise. | |||
5420 | if (Result->isFunctionType()) { | |||
5421 | VK = VK_RValue; | |||
5422 | return Context.BoundMemberTy; | |||
5423 | } else if (isIndirect) { | |||
5424 | VK = VK_LValue; | |||
5425 | } else { | |||
5426 | VK = LHS.get()->getValueKind(); | |||
5427 | } | |||
5428 | ||||
5429 | return Result; | |||
5430 | } | |||
5431 | ||||
5432 | /// \brief Try to convert a type to another according to C++11 5.16p3. | |||
5433 | /// | |||
5434 | /// This is part of the parameter validation for the ? operator. If either | |||
5435 | /// value operand is a class type, the two operands are attempted to be | |||
5436 | /// converted to each other. This function does the conversion in one direction. | |||
5437 | /// It returns true if the program is ill-formed and has already been diagnosed | |||
5438 | /// as such. | |||
5439 | static bool TryClassUnification(Sema &Self, Expr *From, Expr *To, | |||
5440 | SourceLocation QuestionLoc, | |||
5441 | bool &HaveConversion, | |||
5442 | QualType &ToType) { | |||
5443 | HaveConversion = false; | |||
5444 | ToType = To->getType(); | |||
5445 | ||||
5446 | InitializationKind Kind = InitializationKind::CreateCopy(To->getLocStart(), | |||
5447 | SourceLocation()); | |||
5448 | // C++11 5.16p3 | |||
5449 | // The process for determining whether an operand expression E1 of type T1 | |||
5450 | // can be converted to match an operand expression E2 of type T2 is defined | |||
5451 | // as follows: | |||
5452 | // -- If E2 is an lvalue: E1 can be converted to match E2 if E1 can be | |||
5453 | // implicitly converted to type "lvalue reference to T2", subject to the | |||
5454 | // constraint that in the conversion the reference must bind directly to | |||
5455 | // an lvalue. | |||
5456 | // -- If E2 is an xvalue: E1 can be converted to match E2 if E1 can be | |||
5457 | // implicitly converted to the type "rvalue reference to R2", subject to | |||
5458 | // the constraint that the reference must bind directly. | |||
5459 | if (To->isLValue() || To->isXValue()) { | |||
5460 | QualType T = To->isLValue() ? Self.Context.getLValueReferenceType(ToType) | |||
5461 | : Self.Context.getRValueReferenceType(ToType); | |||
5462 | ||||
5463 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(T); | |||
5464 | ||||
5465 | InitializationSequence InitSeq(Self, Entity, Kind, From); | |||
5466 | if (InitSeq.isDirectReferenceBinding()) { | |||
5467 | ToType = T; | |||
5468 | HaveConversion = true; | |||
5469 | return false; | |||
5470 | } | |||
5471 | ||||
5472 | if (InitSeq.isAmbiguous()) | |||
5473 | return InitSeq.Diagnose(Self, Entity, Kind, From); | |||
5474 | } | |||
5475 | ||||
5476 | // -- If E2 is an rvalue, or if the conversion above cannot be done: | |||
5477 | // -- if E1 and E2 have class type, and the underlying class types are | |||
5478 | // the same or one is a base class of the other: | |||
5479 | QualType FTy = From->getType(); | |||
5480 | QualType TTy = To->getType(); | |||
5481 | const RecordType *FRec = FTy->getAs<RecordType>(); | |||
5482 | const RecordType *TRec = TTy->getAs<RecordType>(); | |||
5483 | bool FDerivedFromT = FRec && TRec && FRec != TRec && | |||
5484 | Self.IsDerivedFrom(QuestionLoc, FTy, TTy); | |||
5485 | if (FRec && TRec && (FRec == TRec || FDerivedFromT || | |||
5486 | Self.IsDerivedFrom(QuestionLoc, TTy, FTy))) { | |||
5487 | // E1 can be converted to match E2 if the class of T2 is the | |||
5488 | // same type as, or a base class of, the class of T1, and | |||
5489 | // [cv2 > cv1]. | |||
5490 | if (FRec == TRec || FDerivedFromT) { | |||
5491 | if (TTy.isAtLeastAsQualifiedAs(FTy)) { | |||
5492 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(TTy); | |||
5493 | InitializationSequence InitSeq(Self, Entity, Kind, From); | |||
5494 | if (InitSeq) { | |||
5495 | HaveConversion = true; | |||
5496 | return false; | |||
5497 | } | |||
5498 | ||||
5499 | if (InitSeq.isAmbiguous()) | |||
5500 | return InitSeq.Diagnose(Self, Entity, Kind, From); | |||
5501 | } | |||
5502 | } | |||
5503 | ||||
5504 | return false; | |||
5505 | } | |||
5506 | ||||
5507 | // -- Otherwise: E1 can be converted to match E2 if E1 can be | |||
5508 | // implicitly converted to the type that expression E2 would have | |||
5509 | // if E2 were converted to an rvalue (or the type it has, if E2 is | |||
5510 | // an rvalue). | |||
5511 | // | |||
5512 | // This actually refers very narrowly to the lvalue-to-rvalue conversion, not | |||
5513 | // to the array-to-pointer or function-to-pointer conversions. | |||
5514 | TTy = TTy.getNonLValueExprType(Self.Context); | |||
5515 | ||||
5516 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(TTy); | |||
5517 | InitializationSequence InitSeq(Self, Entity, Kind, From); | |||
5518 | HaveConversion = !InitSeq.Failed(); | |||
5519 | ToType = TTy; | |||
5520 | if (InitSeq.isAmbiguous()) | |||
5521 | return InitSeq.Diagnose(Self, Entity, Kind, From); | |||
5522 | ||||
5523 | return false; | |||
5524 | } | |||
5525 | ||||
5526 | /// \brief Try to find a common type for two according to C++0x 5.16p5. | |||
5527 | /// | |||
5528 | /// This is part of the parameter validation for the ? operator. If either | |||
5529 | /// value operand is a class type, overload resolution is used to find a | |||
5530 | /// conversion to a common type. | |||
5531 | static bool FindConditionalOverload(Sema &Self, ExprResult &LHS, ExprResult &RHS, | |||
5532 | SourceLocation QuestionLoc) { | |||
5533 | Expr *Args[2] = { LHS.get(), RHS.get() }; | |||
5534 | OverloadCandidateSet CandidateSet(QuestionLoc, | |||
5535 | OverloadCandidateSet::CSK_Operator); | |||
5536 | Self.AddBuiltinOperatorCandidates(OO_Conditional, QuestionLoc, Args, | |||
5537 | CandidateSet); | |||
5538 | ||||
5539 | OverloadCandidateSet::iterator Best; | |||
5540 | switch (CandidateSet.BestViableFunction(Self, QuestionLoc, Best)) { | |||
5541 | case OR_Success: { | |||
5542 | // We found a match. Perform the conversions on the arguments and move on. | |||
5543 | ExprResult LHSRes = Self.PerformImplicitConversion( | |||
5544 | LHS.get(), Best->BuiltinParamTypes[0], Best->Conversions[0], | |||
5545 | Sema::AA_Converting); | |||
5546 | if (LHSRes.isInvalid()) | |||
5547 | break; | |||
5548 | LHS = LHSRes; | |||
5549 | ||||
5550 | ExprResult RHSRes = Self.PerformImplicitConversion( | |||
5551 | RHS.get(), Best->BuiltinParamTypes[1], Best->Conversions[1], | |||
5552 | Sema::AA_Converting); | |||
5553 | if (RHSRes.isInvalid()) | |||
5554 | break; | |||
5555 | RHS = RHSRes; | |||
5556 | if (Best->Function) | |||
5557 | Self.MarkFunctionReferenced(QuestionLoc, Best->Function); | |||
5558 | return false; | |||
5559 | } | |||
5560 | ||||
5561 | case OR_No_Viable_Function: | |||
5562 | ||||
5563 | // Emit a better diagnostic if one of the expressions is a null pointer | |||
5564 | // constant and the other is a pointer type. In this case, the user most | |||
5565 | // likely forgot to take the address of the other expression. | |||
5566 | if (Self.DiagnoseConditionalForNull(LHS.get(), RHS.get(), QuestionLoc)) | |||
5567 | return true; | |||
5568 | ||||
5569 | Self.Diag(QuestionLoc, diag::err_typecheck_cond_incompatible_operands) | |||
5570 | << LHS.get()->getType() << RHS.get()->getType() | |||
5571 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); | |||
5572 | return true; | |||
5573 | ||||
5574 | case OR_Ambiguous: | |||
5575 | Self.Diag(QuestionLoc, diag::err_conditional_ambiguous_ovl) | |||
5576 | << LHS.get()->getType() << RHS.get()->getType() | |||
5577 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); | |||
5578 | // FIXME: Print the possible common types by printing the return types of | |||
5579 | // the viable candidates. | |||
5580 | break; | |||
5581 | ||||
5582 | case OR_Deleted: | |||
5583 | llvm_unreachable("Conditional operator has only built-in overloads")::llvm::llvm_unreachable_internal("Conditional operator has only built-in overloads" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5583); | |||
5584 | } | |||
5585 | return true; | |||
5586 | } | |||
5587 | ||||
5588 | /// \brief Perform an "extended" implicit conversion as returned by | |||
5589 | /// TryClassUnification. | |||
5590 | static bool ConvertForConditional(Sema &Self, ExprResult &E, QualType T) { | |||
5591 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(T); | |||
5592 | InitializationKind Kind = InitializationKind::CreateCopy(E.get()->getLocStart(), | |||
5593 | SourceLocation()); | |||
5594 | Expr *Arg = E.get(); | |||
5595 | InitializationSequence InitSeq(Self, Entity, Kind, Arg); | |||
5596 | ExprResult Result = InitSeq.Perform(Self, Entity, Kind, Arg); | |||
5597 | if (Result.isInvalid()) | |||
5598 | return true; | |||
5599 | ||||
5600 | E = Result; | |||
5601 | return false; | |||
5602 | } | |||
5603 | ||||
5604 | /// \brief Check the operands of ?: under C++ semantics. | |||
5605 | /// | |||
5606 | /// See C++ [expr.cond]. Note that LHS is never null, even for the GNU x ?: y | |||
5607 | /// extension. In this case, LHS == Cond. (But they're not aliases.) | |||
5608 | QualType Sema::CXXCheckConditionalOperands(ExprResult &Cond, ExprResult &LHS, | |||
5609 | ExprResult &RHS, ExprValueKind &VK, | |||
5610 | ExprObjectKind &OK, | |||
5611 | SourceLocation QuestionLoc) { | |||
5612 | // FIXME: Handle C99's complex types, vector types, block pointers and Obj-C++ | |||
5613 | // interface pointers. | |||
5614 | ||||
5615 | // C++11 [expr.cond]p1 | |||
5616 | // The first expression is contextually converted to bool. | |||
5617 | // | |||
5618 | // FIXME; GCC's vector extension permits the use of a?b:c where the type of | |||
5619 | // a is that of a integer vector with the same number of elements and | |||
5620 | // size as the vectors of b and c. If one of either b or c is a scalar | |||
5621 | // it is implicitly converted to match the type of the vector. | |||
5622 | // Otherwise the expression is ill-formed. If both b and c are scalars, | |||
5623 | // then b and c are checked and converted to the type of a if possible. | |||
5624 | // Unlike the OpenCL ?: operator, the expression is evaluated as | |||
5625 | // (a[0] != 0 ? b[0] : c[0], .. , a[n] != 0 ? b[n] : c[n]). | |||
5626 | if (!Cond.get()->isTypeDependent()) { | |||
5627 | ExprResult CondRes = CheckCXXBooleanCondition(Cond.get()); | |||
5628 | if (CondRes.isInvalid()) | |||
5629 | return QualType(); | |||
5630 | Cond = CondRes; | |||
5631 | } | |||
5632 | ||||
5633 | // Assume r-value. | |||
5634 | VK = VK_RValue; | |||
5635 | OK = OK_Ordinary; | |||
5636 | ||||
5637 | // Either of the arguments dependent? | |||
5638 | if (LHS.get()->isTypeDependent() || RHS.get()->isTypeDependent()) | |||
5639 | return Context.DependentTy; | |||
5640 | ||||
5641 | // C++11 [expr.cond]p2 | |||
5642 | // If either the second or the third operand has type (cv) void, ... | |||
5643 | QualType LTy = LHS.get()->getType(); | |||
5644 | QualType RTy = RHS.get()->getType(); | |||
5645 | bool LVoid = LTy->isVoidType(); | |||
5646 | bool RVoid = RTy->isVoidType(); | |||
5647 | if (LVoid || RVoid) { | |||
5648 | // ... one of the following shall hold: | |||
5649 | // -- The second or the third operand (but not both) is a (possibly | |||
5650 | // parenthesized) throw-expression; the result is of the type | |||
5651 | // and value category of the other. | |||
5652 | bool LThrow = isa<CXXThrowExpr>(LHS.get()->IgnoreParenImpCasts()); | |||
5653 | bool RThrow = isa<CXXThrowExpr>(RHS.get()->IgnoreParenImpCasts()); | |||
5654 | if (LThrow != RThrow) { | |||
5655 | Expr *NonThrow = LThrow ? RHS.get() : LHS.get(); | |||
5656 | VK = NonThrow->getValueKind(); | |||
5657 | // DR (no number yet): the result is a bit-field if the | |||
5658 | // non-throw-expression operand is a bit-field. | |||
5659 | OK = NonThrow->getObjectKind(); | |||
5660 | return NonThrow->getType(); | |||
5661 | } | |||
5662 | ||||
5663 | // -- Both the second and third operands have type void; the result is of | |||
5664 | // type void and is a prvalue. | |||
5665 | if (LVoid && RVoid) | |||
5666 | return Context.VoidTy; | |||
5667 | ||||
5668 | // Neither holds, error. | |||
5669 | Diag(QuestionLoc, diag::err_conditional_void_nonvoid) | |||
5670 | << (LVoid ? RTy : LTy) << (LVoid ? 0 : 1) | |||
5671 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); | |||
5672 | return QualType(); | |||
5673 | } | |||
5674 | ||||
5675 | // Neither is void. | |||
5676 | ||||
5677 | // C++11 [expr.cond]p3 | |||
5678 | // Otherwise, if the second and third operand have different types, and | |||
5679 | // either has (cv) class type [...] an attempt is made to convert each of | |||
5680 | // those operands to the type of the other. | |||
5681 | if (!Context.hasSameType(LTy, RTy) && | |||
5682 | (LTy->isRecordType() || RTy->isRecordType())) { | |||
5683 | // These return true if a single direction is already ambiguous. | |||
5684 | QualType L2RType, R2LType; | |||
5685 | bool HaveL2R, HaveR2L; | |||
5686 | if (TryClassUnification(*this, LHS.get(), RHS.get(), QuestionLoc, HaveL2R, L2RType)) | |||
5687 | return QualType(); | |||
5688 | if (TryClassUnification(*this, RHS.get(), LHS.get(), QuestionLoc, HaveR2L, R2LType)) | |||
5689 | return QualType(); | |||
5690 | ||||
5691 | // If both can be converted, [...] the program is ill-formed. | |||
5692 | if (HaveL2R && HaveR2L) { | |||
5693 | Diag(QuestionLoc, diag::err_conditional_ambiguous) | |||
5694 | << LTy << RTy << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); | |||
5695 | return QualType(); | |||
5696 | } | |||
5697 | ||||
5698 | // If exactly one conversion is possible, that conversion is applied to | |||
5699 | // the chosen operand and the converted operands are used in place of the | |||
5700 | // original operands for the remainder of this section. | |||
5701 | if (HaveL2R) { | |||
5702 | if (ConvertForConditional(*this, LHS, L2RType) || LHS.isInvalid()) | |||
5703 | return QualType(); | |||
5704 | LTy = LHS.get()->getType(); | |||
5705 | } else if (HaveR2L) { | |||
5706 | if (ConvertForConditional(*this, RHS, R2LType) || RHS.isInvalid()) | |||
5707 | return QualType(); | |||
5708 | RTy = RHS.get()->getType(); | |||
5709 | } | |||
5710 | } | |||
5711 | ||||
5712 | // C++11 [expr.cond]p3 | |||
5713 | // if both are glvalues of the same value category and the same type except | |||
5714 | // for cv-qualification, an attempt is made to convert each of those | |||
5715 | // operands to the type of the other. | |||
5716 | // FIXME: | |||
5717 | // Resolving a defect in P0012R1: we extend this to cover all cases where | |||
5718 | // one of the operands is reference-compatible with the other, in order | |||
5719 | // to support conditionals between functions differing in noexcept. | |||
5720 | ExprValueKind LVK = LHS.get()->getValueKind(); | |||
5721 | ExprValueKind RVK = RHS.get()->getValueKind(); | |||
5722 | if (!Context.hasSameType(LTy, RTy) && | |||
5723 | LVK == RVK && LVK != VK_RValue) { | |||
5724 | // DerivedToBase was already handled by the class-specific case above. | |||
5725 | // FIXME: Should we allow ObjC conversions here? | |||
5726 | bool DerivedToBase, ObjCConversion, ObjCLifetimeConversion; | |||
5727 | if (CompareReferenceRelationship( | |||
5728 | QuestionLoc, LTy, RTy, DerivedToBase, | |||
5729 | ObjCConversion, ObjCLifetimeConversion) == Ref_Compatible && | |||
5730 | !DerivedToBase && !ObjCConversion && !ObjCLifetimeConversion && | |||
5731 | // [...] subject to the constraint that the reference must bind | |||
5732 | // directly [...] | |||
5733 | !RHS.get()->refersToBitField() && | |||
5734 | !RHS.get()->refersToVectorElement()) { | |||
5735 | RHS = ImpCastExprToType(RHS.get(), LTy, CK_NoOp, RVK); | |||
5736 | RTy = RHS.get()->getType(); | |||
5737 | } else if (CompareReferenceRelationship( | |||
5738 | QuestionLoc, RTy, LTy, DerivedToBase, | |||
5739 | ObjCConversion, ObjCLifetimeConversion) == Ref_Compatible && | |||
5740 | !DerivedToBase && !ObjCConversion && !ObjCLifetimeConversion && | |||
5741 | !LHS.get()->refersToBitField() && | |||
5742 | !LHS.get()->refersToVectorElement()) { | |||
5743 | LHS = ImpCastExprToType(LHS.get(), RTy, CK_NoOp, LVK); | |||
5744 | LTy = LHS.get()->getType(); | |||
5745 | } | |||
5746 | } | |||
5747 | ||||
5748 | // C++11 [expr.cond]p4 | |||
5749 | // If the second and third operands are glvalues of the same value | |||
5750 | // category and have the same type, the result is of that type and | |||
5751 | // value category and it is a bit-field if the second or the third | |||
5752 | // operand is a bit-field, or if both are bit-fields. | |||
5753 | // We only extend this to bitfields, not to the crazy other kinds of | |||
5754 | // l-values. | |||
5755 | bool Same = Context.hasSameType(LTy, RTy); | |||
5756 | if (Same && LVK == RVK && LVK != VK_RValue && | |||
5757 | LHS.get()->isOrdinaryOrBitFieldObject() && | |||
5758 | RHS.get()->isOrdinaryOrBitFieldObject()) { | |||
5759 | VK = LHS.get()->getValueKind(); | |||
5760 | if (LHS.get()->getObjectKind() == OK_BitField || | |||
5761 | RHS.get()->getObjectKind() == OK_BitField) | |||
5762 | OK = OK_BitField; | |||
5763 | ||||
5764 | // If we have function pointer types, unify them anyway to unify their | |||
5765 | // exception specifications, if any. | |||
5766 | if (LTy->isFunctionPointerType() || LTy->isMemberFunctionPointerType()) { | |||
5767 | Qualifiers Qs = LTy.getQualifiers(); | |||
5768 | LTy = FindCompositePointerType(QuestionLoc, LHS, RHS, | |||
5769 | /*ConvertArgs*/false); | |||
5770 | LTy = Context.getQualifiedType(LTy, Qs); | |||
5771 | ||||
5772 | assert(!LTy.isNull() && "failed to find composite pointer type for "(static_cast <bool> (!LTy.isNull() && "failed to find composite pointer type for " "canonically equivalent function ptr types") ? void (0) : __assert_fail ("!LTy.isNull() && \"failed to find composite pointer type for \" \"canonically equivalent function ptr types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5773, __extension__ __PRETTY_FUNCTION__)) | |||
5773 | "canonically equivalent function ptr types")(static_cast <bool> (!LTy.isNull() && "failed to find composite pointer type for " "canonically equivalent function ptr types") ? void (0) : __assert_fail ("!LTy.isNull() && \"failed to find composite pointer type for \" \"canonically equivalent function ptr types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5773, __extension__ __PRETTY_FUNCTION__)); | |||
5774 | assert(Context.hasSameType(LTy, RTy) && "bad composite pointer type")(static_cast <bool> (Context.hasSameType(LTy, RTy) && "bad composite pointer type") ? void (0) : __assert_fail ("Context.hasSameType(LTy, RTy) && \"bad composite pointer type\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5774, __extension__ __PRETTY_FUNCTION__)); | |||
5775 | } | |||
5776 | ||||
5777 | return LTy; | |||
5778 | } | |||
5779 | ||||
5780 | // C++11 [expr.cond]p5 | |||
5781 | // Otherwise, the result is a prvalue. If the second and third operands | |||
5782 | // do not have the same type, and either has (cv) class type, ... | |||
5783 | if (!Same && (LTy->isRecordType() || RTy->isRecordType())) { | |||
5784 | // ... overload resolution is used to determine the conversions (if any) | |||
5785 | // to be applied to the operands. If the overload resolution fails, the | |||
5786 | // program is ill-formed. | |||
5787 | if (FindConditionalOverload(*this, LHS, RHS, QuestionLoc)) | |||
5788 | return QualType(); | |||
5789 | } | |||
5790 | ||||
5791 | // C++11 [expr.cond]p6 | |||
5792 | // Lvalue-to-rvalue, array-to-pointer, and function-to-pointer standard | |||
5793 | // conversions are performed on the second and third operands. | |||
5794 | LHS = DefaultFunctionArrayLvalueConversion(LHS.get()); | |||
5795 | RHS = DefaultFunctionArrayLvalueConversion(RHS.get()); | |||
5796 | if (LHS.isInvalid() || RHS.isInvalid()) | |||
5797 | return QualType(); | |||
5798 | LTy = LHS.get()->getType(); | |||
5799 | RTy = RHS.get()->getType(); | |||
5800 | ||||
5801 | // After those conversions, one of the following shall hold: | |||
5802 | // -- The second and third operands have the same type; the result | |||
5803 | // is of that type. If the operands have class type, the result | |||
5804 | // is a prvalue temporary of the result type, which is | |||
5805 | // copy-initialized from either the second operand or the third | |||
5806 | // operand depending on the value of the first operand. | |||
5807 | if (Context.getCanonicalType(LTy) == Context.getCanonicalType(RTy)) { | |||
5808 | if (LTy->isRecordType()) { | |||
5809 | // The operands have class type. Make a temporary copy. | |||
5810 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(LTy); | |||
5811 | ||||
5812 | ExprResult LHSCopy = PerformCopyInitialization(Entity, | |||
5813 | SourceLocation(), | |||
5814 | LHS); | |||
5815 | if (LHSCopy.isInvalid()) | |||
5816 | return QualType(); | |||
5817 | ||||
5818 | ExprResult RHSCopy = PerformCopyInitialization(Entity, | |||
5819 | SourceLocation(), | |||
5820 | RHS); | |||
5821 | if (RHSCopy.isInvalid()) | |||
5822 | return QualType(); | |||
5823 | ||||
5824 | LHS = LHSCopy; | |||
5825 | RHS = RHSCopy; | |||
5826 | } | |||
5827 | ||||
5828 | // If we have function pointer types, unify them anyway to unify their | |||
5829 | // exception specifications, if any. | |||
5830 | if (LTy->isFunctionPointerType() || LTy->isMemberFunctionPointerType()) { | |||
5831 | LTy = FindCompositePointerType(QuestionLoc, LHS, RHS); | |||
5832 | assert(!LTy.isNull() && "failed to find composite pointer type for "(static_cast <bool> (!LTy.isNull() && "failed to find composite pointer type for " "canonically equivalent function ptr types") ? void (0) : __assert_fail ("!LTy.isNull() && \"failed to find composite pointer type for \" \"canonically equivalent function ptr types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5833, __extension__ __PRETTY_FUNCTION__)) | |||
5833 | "canonically equivalent function ptr types")(static_cast <bool> (!LTy.isNull() && "failed to find composite pointer type for " "canonically equivalent function ptr types") ? void (0) : __assert_fail ("!LTy.isNull() && \"failed to find composite pointer type for \" \"canonically equivalent function ptr types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5833, __extension__ __PRETTY_FUNCTION__)); | |||
5834 | } | |||
5835 | ||||
5836 | return LTy; | |||
5837 | } | |||
5838 | ||||
5839 | // Extension: conditional operator involving vector types. | |||
5840 | if (LTy->isVectorType() || RTy->isVectorType()) | |||
5841 | return CheckVectorOperands(LHS, RHS, QuestionLoc, /*isCompAssign*/false, | |||
5842 | /*AllowBothBool*/true, | |||
5843 | /*AllowBoolConversions*/false); | |||
5844 | ||||
5845 | // -- The second and third operands have arithmetic or enumeration type; | |||
5846 | // the usual arithmetic conversions are performed to bring them to a | |||
5847 | // common type, and the result is of that type. | |||
5848 | if (LTy->isArithmeticType() && RTy->isArithmeticType()) { | |||
5849 | QualType ResTy = UsualArithmeticConversions(LHS, RHS); | |||
5850 | if (LHS.isInvalid() || RHS.isInvalid()) | |||
5851 | return QualType(); | |||
5852 | if (ResTy.isNull()) { | |||
5853 | Diag(QuestionLoc, | |||
5854 | diag::err_typecheck_cond_incompatible_operands) << LTy << RTy | |||
5855 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); | |||
5856 | return QualType(); | |||
5857 | } | |||
5858 | ||||
5859 | LHS = ImpCastExprToType(LHS.get(), ResTy, PrepareScalarCast(LHS, ResTy)); | |||
5860 | RHS = ImpCastExprToType(RHS.get(), ResTy, PrepareScalarCast(RHS, ResTy)); | |||
5861 | ||||
5862 | return ResTy; | |||
5863 | } | |||
5864 | ||||
5865 | // -- The second and third operands have pointer type, or one has pointer | |||
5866 | // type and the other is a null pointer constant, or both are null | |||
5867 | // pointer constants, at least one of which is non-integral; pointer | |||
5868 | // conversions and qualification conversions are performed to bring them | |||
5869 | // to their composite pointer type. The result is of the composite | |||
5870 | // pointer type. | |||
5871 | // -- The second and third operands have pointer to member type, or one has | |||
5872 | // pointer to member type and the other is a null pointer constant; | |||
5873 | // pointer to member conversions and qualification conversions are | |||
5874 | // performed to bring them to a common type, whose cv-qualification | |||
5875 | // shall match the cv-qualification of either the second or the third | |||
5876 | // operand. The result is of the common type. | |||
5877 | QualType Composite = FindCompositePointerType(QuestionLoc, LHS, RHS); | |||
5878 | if (!Composite.isNull()) | |||
5879 | return Composite; | |||
5880 | ||||
5881 | // Similarly, attempt to find composite type of two objective-c pointers. | |||
5882 | Composite = FindCompositeObjCPointerType(LHS, RHS, QuestionLoc); | |||
5883 | if (!Composite.isNull()) | |||
5884 | return Composite; | |||
5885 | ||||
5886 | // Check if we are using a null with a non-pointer type. | |||
5887 | if (DiagnoseConditionalForNull(LHS.get(), RHS.get(), QuestionLoc)) | |||
5888 | return QualType(); | |||
5889 | ||||
5890 | Diag(QuestionLoc, diag::err_typecheck_cond_incompatible_operands) | |||
5891 | << LHS.get()->getType() << RHS.get()->getType() | |||
5892 | << LHS.get()->getSourceRange() << RHS.get()->getSourceRange(); | |||
5893 | return QualType(); | |||
5894 | } | |||
5895 | ||||
5896 | static FunctionProtoType::ExceptionSpecInfo | |||
5897 | mergeExceptionSpecs(Sema &S, FunctionProtoType::ExceptionSpecInfo ESI1, | |||
5898 | FunctionProtoType::ExceptionSpecInfo ESI2, | |||
5899 | SmallVectorImpl<QualType> &ExceptionTypeStorage) { | |||
5900 | ExceptionSpecificationType EST1 = ESI1.Type; | |||
5901 | ExceptionSpecificationType EST2 = ESI2.Type; | |||
5902 | ||||
5903 | // If either of them can throw anything, that is the result. | |||
5904 | if (EST1 == EST_None) return ESI1; | |||
5905 | if (EST2 == EST_None) return ESI2; | |||
5906 | if (EST1 == EST_MSAny) return ESI1; | |||
5907 | if (EST2 == EST_MSAny) return ESI2; | |||
5908 | ||||
5909 | // If either of them is non-throwing, the result is the other. | |||
5910 | if (EST1 == EST_DynamicNone) return ESI2; | |||
5911 | if (EST2 == EST_DynamicNone) return ESI1; | |||
5912 | if (EST1 == EST_BasicNoexcept) return ESI2; | |||
5913 | if (EST2 == EST_BasicNoexcept) return ESI1; | |||
5914 | ||||
5915 | // If either of them is a non-value-dependent computed noexcept, that | |||
5916 | // determines the result. | |||
5917 | if (EST2 == EST_ComputedNoexcept && ESI2.NoexceptExpr && | |||
5918 | !ESI2.NoexceptExpr->isValueDependent()) | |||
5919 | return !ESI2.NoexceptExpr->EvaluateKnownConstInt(S.Context) ? ESI2 : ESI1; | |||
5920 | if (EST1 == EST_ComputedNoexcept && ESI1.NoexceptExpr && | |||
5921 | !ESI1.NoexceptExpr->isValueDependent()) | |||
5922 | return !ESI1.NoexceptExpr->EvaluateKnownConstInt(S.Context) ? ESI1 : ESI2; | |||
5923 | // If we're left with value-dependent computed noexcept expressions, we're | |||
5924 | // stuck. Before C++17, we can just drop the exception specification entirely, | |||
5925 | // since it's not actually part of the canonical type. And this should never | |||
5926 | // happen in C++17, because it would mean we were computing the composite | |||
5927 | // pointer type of dependent types, which should never happen. | |||
5928 | if (EST1 == EST_ComputedNoexcept || EST2 == EST_ComputedNoexcept) { | |||
5929 | assert(!S.getLangOpts().CPlusPlus17 &&(static_cast <bool> (!S.getLangOpts().CPlusPlus17 && "computing composite pointer type of dependent types") ? void (0) : __assert_fail ("!S.getLangOpts().CPlusPlus17 && \"computing composite pointer type of dependent types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5930, __extension__ __PRETTY_FUNCTION__)) | |||
5930 | "computing composite pointer type of dependent types")(static_cast <bool> (!S.getLangOpts().CPlusPlus17 && "computing composite pointer type of dependent types") ? void (0) : __assert_fail ("!S.getLangOpts().CPlusPlus17 && \"computing composite pointer type of dependent types\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5930, __extension__ __PRETTY_FUNCTION__)); | |||
5931 | return FunctionProtoType::ExceptionSpecInfo(); | |||
5932 | } | |||
5933 | ||||
5934 | // Switch over the possibilities so that people adding new values know to | |||
5935 | // update this function. | |||
5936 | switch (EST1) { | |||
5937 | case EST_None: | |||
5938 | case EST_DynamicNone: | |||
5939 | case EST_MSAny: | |||
5940 | case EST_BasicNoexcept: | |||
5941 | case EST_ComputedNoexcept: | |||
5942 | llvm_unreachable("handled above")::llvm::llvm_unreachable_internal("handled above", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5942); | |||
5943 | ||||
5944 | case EST_Dynamic: { | |||
5945 | // This is the fun case: both exception specifications are dynamic. Form | |||
5946 | // the union of the two lists. | |||
5947 | assert(EST2 == EST_Dynamic && "other cases should already be handled")(static_cast <bool> (EST2 == EST_Dynamic && "other cases should already be handled" ) ? void (0) : __assert_fail ("EST2 == EST_Dynamic && \"other cases should already be handled\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5947, __extension__ __PRETTY_FUNCTION__)); | |||
5948 | llvm::SmallPtrSet<QualType, 8> Found; | |||
5949 | for (auto &Exceptions : {ESI1.Exceptions, ESI2.Exceptions}) | |||
5950 | for (QualType E : Exceptions) | |||
5951 | if (Found.insert(S.Context.getCanonicalType(E)).second) | |||
5952 | ExceptionTypeStorage.push_back(E); | |||
5953 | ||||
5954 | FunctionProtoType::ExceptionSpecInfo Result(EST_Dynamic); | |||
5955 | Result.Exceptions = ExceptionTypeStorage; | |||
5956 | return Result; | |||
5957 | } | |||
5958 | ||||
5959 | case EST_Unevaluated: | |||
5960 | case EST_Uninstantiated: | |||
5961 | case EST_Unparsed: | |||
5962 | llvm_unreachable("shouldn't see unresolved exception specifications here")::llvm::llvm_unreachable_internal("shouldn't see unresolved exception specifications here" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5962); | |||
5963 | } | |||
5964 | ||||
5965 | llvm_unreachable("invalid ExceptionSpecificationType")::llvm::llvm_unreachable_internal("invalid ExceptionSpecificationType" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5965); | |||
5966 | } | |||
5967 | ||||
5968 | /// \brief Find a merged pointer type and convert the two expressions to it. | |||
5969 | /// | |||
5970 | /// This finds the composite pointer type (or member pointer type) for @p E1 | |||
5971 | /// and @p E2 according to C++1z 5p14. It converts both expressions to this | |||
5972 | /// type and returns it. | |||
5973 | /// It does not emit diagnostics. | |||
5974 | /// | |||
5975 | /// \param Loc The location of the operator requiring these two expressions to | |||
5976 | /// be converted to the composite pointer type. | |||
5977 | /// | |||
5978 | /// \param ConvertArgs If \c false, do not convert E1 and E2 to the target type. | |||
5979 | QualType Sema::FindCompositePointerType(SourceLocation Loc, | |||
5980 | Expr *&E1, Expr *&E2, | |||
5981 | bool ConvertArgs) { | |||
5982 | assert(getLangOpts().CPlusPlus && "This function assumes C++")(static_cast <bool> (getLangOpts().CPlusPlus && "This function assumes C++") ? void (0) : __assert_fail ("getLangOpts().CPlusPlus && \"This function assumes C++\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 5982, __extension__ __PRETTY_FUNCTION__)); | |||
5983 | ||||
5984 | // C++1z [expr]p14: | |||
5985 | // The composite pointer type of two operands p1 and p2 having types T1 | |||
5986 | // and T2 | |||
5987 | QualType T1 = E1->getType(), T2 = E2->getType(); | |||
5988 | ||||
5989 | // where at least one is a pointer or pointer to member type or | |||
5990 | // std::nullptr_t is: | |||
5991 | bool T1IsPointerLike = T1->isAnyPointerType() || T1->isMemberPointerType() || | |||
5992 | T1->isNullPtrType(); | |||
5993 | bool T2IsPointerLike = T2->isAnyPointerType() || T2->isMemberPointerType() || | |||
5994 | T2->isNullPtrType(); | |||
5995 | if (!T1IsPointerLike && !T2IsPointerLike) | |||
5996 | return QualType(); | |||
5997 | ||||
5998 | // - if both p1 and p2 are null pointer constants, std::nullptr_t; | |||
5999 | // This can't actually happen, following the standard, but we also use this | |||
6000 | // to implement the end of [expr.conv], which hits this case. | |||
6001 | // | |||
6002 | // - if either p1 or p2 is a null pointer constant, T2 or T1, respectively; | |||
6003 | if (T1IsPointerLike && | |||
6004 | E2->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNull)) { | |||
6005 | if (ConvertArgs) | |||
6006 | E2 = ImpCastExprToType(E2, T1, T1->isMemberPointerType() | |||
6007 | ? CK_NullToMemberPointer | |||
6008 | : CK_NullToPointer).get(); | |||
6009 | return T1; | |||
6010 | } | |||
6011 | if (T2IsPointerLike && | |||
6012 | E1->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNull)) { | |||
6013 | if (ConvertArgs) | |||
6014 | E1 = ImpCastExprToType(E1, T2, T2->isMemberPointerType() | |||
6015 | ? CK_NullToMemberPointer | |||
6016 | : CK_NullToPointer).get(); | |||
6017 | return T2; | |||
6018 | } | |||
6019 | ||||
6020 | // Now both have to be pointers or member pointers. | |||
6021 | if (!T1IsPointerLike || !T2IsPointerLike) | |||
6022 | return QualType(); | |||
6023 | assert(!T1->isNullPtrType() && !T2->isNullPtrType() &&(static_cast <bool> (!T1->isNullPtrType() && !T2->isNullPtrType() && "nullptr_t should be a null pointer constant" ) ? void (0) : __assert_fail ("!T1->isNullPtrType() && !T2->isNullPtrType() && \"nullptr_t should be a null pointer constant\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6024, __extension__ __PRETTY_FUNCTION__)) | |||
6024 | "nullptr_t should be a null pointer constant")(static_cast <bool> (!T1->isNullPtrType() && !T2->isNullPtrType() && "nullptr_t should be a null pointer constant" ) ? void (0) : __assert_fail ("!T1->isNullPtrType() && !T2->isNullPtrType() && \"nullptr_t should be a null pointer constant\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6024, __extension__ __PRETTY_FUNCTION__)); | |||
6025 | ||||
6026 | // - if T1 or T2 is "pointer to cv1 void" and the other type is | |||
6027 | // "pointer to cv2 T", "pointer to cv12 void", where cv12 is | |||
6028 | // the union of cv1 and cv2; | |||
6029 | // - if T1 or T2 is "pointer to noexcept function" and the other type is | |||
6030 | // "pointer to function", where the function types are otherwise the same, | |||
6031 | // "pointer to function"; | |||
6032 | // FIXME: This rule is defective: it should also permit removing noexcept | |||
6033 | // from a pointer to member function. As a Clang extension, we also | |||
6034 | // permit removing 'noreturn', so we generalize this rule to; | |||
6035 | // - [Clang] If T1 and T2 are both of type "pointer to function" or | |||
6036 | // "pointer to member function" and the pointee types can be unified | |||
6037 | // by a function pointer conversion, that conversion is applied | |||
6038 | // before checking the following rules. | |||
6039 | // - if T1 is "pointer to cv1 C1" and T2 is "pointer to cv2 C2", where C1 | |||
6040 | // is reference-related to C2 or C2 is reference-related to C1 (8.6.3), | |||
6041 | // the cv-combined type of T1 and T2 or the cv-combined type of T2 and T1, | |||
6042 | // respectively; | |||
6043 | // - if T1 is "pointer to member of C1 of type cv1 U1" and T2 is "pointer | |||
6044 | // to member of C2 of type cv2 U2" where C1 is reference-related to C2 or | |||
6045 | // C2 is reference-related to C1 (8.6.3), the cv-combined type of T2 and | |||
6046 | // T1 or the cv-combined type of T1 and T2, respectively; | |||
6047 | // - if T1 and T2 are similar types (4.5), the cv-combined type of T1 and | |||
6048 | // T2; | |||
6049 | // | |||
6050 | // If looked at in the right way, these bullets all do the same thing. | |||
6051 | // What we do here is, we build the two possible cv-combined types, and try | |||
6052 | // the conversions in both directions. If only one works, or if the two | |||
6053 | // composite types are the same, we have succeeded. | |||
6054 | // FIXME: extended qualifiers? | |||
6055 | // | |||
6056 | // Note that this will fail to find a composite pointer type for "pointer | |||
6057 | // to void" and "pointer to function". We can't actually perform the final | |||
6058 | // conversion in this case, even though a composite pointer type formally | |||
6059 | // exists. | |||
6060 | SmallVector<unsigned, 4> QualifierUnion; | |||
6061 | SmallVector<std::pair<const Type *, const Type *>, 4> MemberOfClass; | |||
6062 | QualType Composite1 = T1; | |||
6063 | QualType Composite2 = T2; | |||
6064 | unsigned NeedConstBefore = 0; | |||
6065 | while (true) { | |||
6066 | const PointerType *Ptr1, *Ptr2; | |||
6067 | if ((Ptr1 = Composite1->getAs<PointerType>()) && | |||
6068 | (Ptr2 = Composite2->getAs<PointerType>())) { | |||
6069 | Composite1 = Ptr1->getPointeeType(); | |||
6070 | Composite2 = Ptr2->getPointeeType(); | |||
6071 | ||||
6072 | // If we're allowed to create a non-standard composite type, keep track | |||
6073 | // of where we need to fill in additional 'const' qualifiers. | |||
6074 | if (Composite1.getCVRQualifiers() != Composite2.getCVRQualifiers()) | |||
6075 | NeedConstBefore = QualifierUnion.size(); | |||
6076 | ||||
6077 | QualifierUnion.push_back( | |||
6078 | Composite1.getCVRQualifiers() | Composite2.getCVRQualifiers()); | |||
6079 | MemberOfClass.push_back(std::make_pair(nullptr, nullptr)); | |||
6080 | continue; | |||
6081 | } | |||
6082 | ||||
6083 | const MemberPointerType *MemPtr1, *MemPtr2; | |||
6084 | if ((MemPtr1 = Composite1->getAs<MemberPointerType>()) && | |||
6085 | (MemPtr2 = Composite2->getAs<MemberPointerType>())) { | |||
6086 | Composite1 = MemPtr1->getPointeeType(); | |||
6087 | Composite2 = MemPtr2->getPointeeType(); | |||
6088 | ||||
6089 | // If we're allowed to create a non-standard composite type, keep track | |||
6090 | // of where we need to fill in additional 'const' qualifiers. | |||
6091 | if (Composite1.getCVRQualifiers() != Composite2.getCVRQualifiers()) | |||
6092 | NeedConstBefore = QualifierUnion.size(); | |||
6093 | ||||
6094 | QualifierUnion.push_back( | |||
6095 | Composite1.getCVRQualifiers() | Composite2.getCVRQualifiers()); | |||
6096 | MemberOfClass.push_back(std::make_pair(MemPtr1->getClass(), | |||
6097 | MemPtr2->getClass())); | |||
6098 | continue; | |||
6099 | } | |||
6100 | ||||
6101 | // FIXME: block pointer types? | |||
6102 | ||||
6103 | // Cannot unwrap any more types. | |||
6104 | break; | |||
6105 | } | |||
6106 | ||||
6107 | // Apply the function pointer conversion to unify the types. We've already | |||
6108 | // unwrapped down to the function types, and we want to merge rather than | |||
6109 | // just convert, so do this ourselves rather than calling | |||
6110 | // IsFunctionConversion. | |||
6111 | // | |||
6112 | // FIXME: In order to match the standard wording as closely as possible, we | |||
6113 | // currently only do this under a single level of pointers. Ideally, we would | |||
6114 | // allow this in general, and set NeedConstBefore to the relevant depth on | |||
6115 | // the side(s) where we changed anything. | |||
6116 | if (QualifierUnion.size() == 1) { | |||
6117 | if (auto *FPT1 = Composite1->getAs<FunctionProtoType>()) { | |||
6118 | if (auto *FPT2 = Composite2->getAs<FunctionProtoType>()) { | |||
6119 | FunctionProtoType::ExtProtoInfo EPI1 = FPT1->getExtProtoInfo(); | |||
6120 | FunctionProtoType::ExtProtoInfo EPI2 = FPT2->getExtProtoInfo(); | |||
6121 | ||||
6122 | // The result is noreturn if both operands are. | |||
6123 | bool Noreturn = | |||
6124 | EPI1.ExtInfo.getNoReturn() && EPI2.ExtInfo.getNoReturn(); | |||
6125 | EPI1.ExtInfo = EPI1.ExtInfo.withNoReturn(Noreturn); | |||
6126 | EPI2.ExtInfo = EPI2.ExtInfo.withNoReturn(Noreturn); | |||
6127 | ||||
6128 | // The result is nothrow if both operands are. | |||
6129 | SmallVector<QualType, 8> ExceptionTypeStorage; | |||
6130 | EPI1.ExceptionSpec = EPI2.ExceptionSpec = | |||
6131 | mergeExceptionSpecs(*this, EPI1.ExceptionSpec, EPI2.ExceptionSpec, | |||
6132 | ExceptionTypeStorage); | |||
6133 | ||||
6134 | Composite1 = Context.getFunctionType(FPT1->getReturnType(), | |||
6135 | FPT1->getParamTypes(), EPI1); | |||
6136 | Composite2 = Context.getFunctionType(FPT2->getReturnType(), | |||
6137 | FPT2->getParamTypes(), EPI2); | |||
6138 | } | |||
6139 | } | |||
6140 | } | |||
6141 | ||||
6142 | if (NeedConstBefore) { | |||
6143 | // Extension: Add 'const' to qualifiers that come before the first qualifier | |||
6144 | // mismatch, so that our (non-standard!) composite type meets the | |||
6145 | // requirements of C++ [conv.qual]p4 bullet 3. | |||
6146 | for (unsigned I = 0; I != NeedConstBefore; ++I) | |||
6147 | if ((QualifierUnion[I] & Qualifiers::Const) == 0) | |||
6148 | QualifierUnion[I] = QualifierUnion[I] | Qualifiers::Const; | |||
6149 | } | |||
6150 | ||||
6151 | // Rewrap the composites as pointers or member pointers with the union CVRs. | |||
6152 | auto MOC = MemberOfClass.rbegin(); | |||
6153 | for (unsigned CVR : llvm::reverse(QualifierUnion)) { | |||
6154 | Qualifiers Quals = Qualifiers::fromCVRMask(CVR); | |||
6155 | auto Classes = *MOC++; | |||
6156 | if (Classes.first && Classes.second) { | |||
6157 | // Rebuild member pointer type | |||
6158 | Composite1 = Context.getMemberPointerType( | |||
6159 | Context.getQualifiedType(Composite1, Quals), Classes.first); | |||
6160 | Composite2 = Context.getMemberPointerType( | |||
6161 | Context.getQualifiedType(Composite2, Quals), Classes.second); | |||
6162 | } else { | |||
6163 | // Rebuild pointer type | |||
6164 | Composite1 = | |||
6165 | Context.getPointerType(Context.getQualifiedType(Composite1, Quals)); | |||
6166 | Composite2 = | |||
6167 | Context.getPointerType(Context.getQualifiedType(Composite2, Quals)); | |||
6168 | } | |||
6169 | } | |||
6170 | ||||
6171 | struct Conversion { | |||
6172 | Sema &S; | |||
6173 | Expr *&E1, *&E2; | |||
6174 | QualType Composite; | |||
6175 | InitializedEntity Entity; | |||
6176 | InitializationKind Kind; | |||
6177 | InitializationSequence E1ToC, E2ToC; | |||
6178 | bool Viable; | |||
6179 | ||||
6180 | Conversion(Sema &S, SourceLocation Loc, Expr *&E1, Expr *&E2, | |||
6181 | QualType Composite) | |||
6182 | : S(S), E1(E1), E2(E2), Composite(Composite), | |||
6183 | Entity(InitializedEntity::InitializeTemporary(Composite)), | |||
6184 | Kind(InitializationKind::CreateCopy(Loc, SourceLocation())), | |||
6185 | E1ToC(S, Entity, Kind, E1), E2ToC(S, Entity, Kind, E2), | |||
6186 | Viable(E1ToC && E2ToC) {} | |||
6187 | ||||
6188 | bool perform() { | |||
6189 | ExprResult E1Result = E1ToC.Perform(S, Entity, Kind, E1); | |||
6190 | if (E1Result.isInvalid()) | |||
6191 | return true; | |||
6192 | E1 = E1Result.getAs<Expr>(); | |||
6193 | ||||
6194 | ExprResult E2Result = E2ToC.Perform(S, Entity, Kind, E2); | |||
6195 | if (E2Result.isInvalid()) | |||
6196 | return true; | |||
6197 | E2 = E2Result.getAs<Expr>(); | |||
6198 | ||||
6199 | return false; | |||
6200 | } | |||
6201 | }; | |||
6202 | ||||
6203 | // Try to convert to each composite pointer type. | |||
6204 | Conversion C1(*this, Loc, E1, E2, Composite1); | |||
6205 | if (C1.Viable && Context.hasSameType(Composite1, Composite2)) { | |||
6206 | if (ConvertArgs && C1.perform()) | |||
6207 | return QualType(); | |||
6208 | return C1.Composite; | |||
6209 | } | |||
6210 | Conversion C2(*this, Loc, E1, E2, Composite2); | |||
6211 | ||||
6212 | if (C1.Viable == C2.Viable) { | |||
6213 | // Either Composite1 and Composite2 are viable and are different, or | |||
6214 | // neither is viable. | |||
6215 | // FIXME: How both be viable and different? | |||
6216 | return QualType(); | |||
6217 | } | |||
6218 | ||||
6219 | // Convert to the chosen type. | |||
6220 | if (ConvertArgs && (C1.Viable ? C1 : C2).perform()) | |||
6221 | return QualType(); | |||
6222 | ||||
6223 | return C1.Viable ? C1.Composite : C2.Composite; | |||
6224 | } | |||
6225 | ||||
6226 | ExprResult Sema::MaybeBindToTemporary(Expr *E) { | |||
6227 | if (!E) | |||
6228 | return ExprError(); | |||
6229 | ||||
6230 | assert(!isa<CXXBindTemporaryExpr>(E) && "Double-bound temporary?")(static_cast <bool> (!isa<CXXBindTemporaryExpr>(E ) && "Double-bound temporary?") ? void (0) : __assert_fail ("!isa<CXXBindTemporaryExpr>(E) && \"Double-bound temporary?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6230, __extension__ __PRETTY_FUNCTION__)); | |||
6231 | ||||
6232 | // If the result is a glvalue, we shouldn't bind it. | |||
6233 | if (!E->isRValue()) | |||
6234 | return E; | |||
6235 | ||||
6236 | // In ARC, calls that return a retainable type can return retained, | |||
6237 | // in which case we have to insert a consuming cast. | |||
6238 | if (getLangOpts().ObjCAutoRefCount && | |||
6239 | E->getType()->isObjCRetainableType()) { | |||
6240 | ||||
6241 | bool ReturnsRetained; | |||
6242 | ||||
6243 | // For actual calls, we compute this by examining the type of the | |||
6244 | // called value. | |||
6245 | if (CallExpr *Call = dyn_cast<CallExpr>(E)) { | |||
6246 | Expr *Callee = Call->getCallee()->IgnoreParens(); | |||
6247 | QualType T = Callee->getType(); | |||
6248 | ||||
6249 | if (T == Context.BoundMemberTy) { | |||
6250 | // Handle pointer-to-members. | |||
6251 | if (BinaryOperator *BinOp = dyn_cast<BinaryOperator>(Callee)) | |||
6252 | T = BinOp->getRHS()->getType(); | |||
6253 | else if (MemberExpr *Mem = dyn_cast<MemberExpr>(Callee)) | |||
6254 | T = Mem->getMemberDecl()->getType(); | |||
6255 | } | |||
6256 | ||||
6257 | if (const PointerType *Ptr = T->getAs<PointerType>()) | |||
6258 | T = Ptr->getPointeeType(); | |||
6259 | else if (const BlockPointerType *Ptr = T->getAs<BlockPointerType>()) | |||
6260 | T = Ptr->getPointeeType(); | |||
6261 | else if (const MemberPointerType *MemPtr = T->getAs<MemberPointerType>()) | |||
6262 | T = MemPtr->getPointeeType(); | |||
6263 | ||||
6264 | const FunctionType *FTy = T->getAs<FunctionType>(); | |||
6265 | assert(FTy && "call to value not of function type?")(static_cast <bool> (FTy && "call to value not of function type?" ) ? void (0) : __assert_fail ("FTy && \"call to value not of function type?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6265, __extension__ __PRETTY_FUNCTION__)); | |||
6266 | ReturnsRetained = FTy->getExtInfo().getProducesResult(); | |||
6267 | ||||
6268 | // ActOnStmtExpr arranges things so that StmtExprs of retainable | |||
6269 | // type always produce a +1 object. | |||
6270 | } else if (isa<StmtExpr>(E)) { | |||
6271 | ReturnsRetained = true; | |||
6272 | ||||
6273 | // We hit this case with the lambda conversion-to-block optimization; | |||
6274 | // we don't want any extra casts here. | |||
6275 | } else if (isa<CastExpr>(E) && | |||
6276 | isa<BlockExpr>(cast<CastExpr>(E)->getSubExpr())) { | |||
6277 | return E; | |||
6278 | ||||
6279 | // For message sends and property references, we try to find an | |||
6280 | // actual method. FIXME: we should infer retention by selector in | |||
6281 | // cases where we don't have an actual method. | |||
6282 | } else { | |||
6283 | ObjCMethodDecl *D = nullptr; | |||
6284 | if (ObjCMessageExpr *Send = dyn_cast<ObjCMessageExpr>(E)) { | |||
6285 | D = Send->getMethodDecl(); | |||
6286 | } else if (ObjCBoxedExpr *BoxedExpr = dyn_cast<ObjCBoxedExpr>(E)) { | |||
6287 | D = BoxedExpr->getBoxingMethod(); | |||
6288 | } else if (ObjCArrayLiteral *ArrayLit = dyn_cast<ObjCArrayLiteral>(E)) { | |||
6289 | // Don't do reclaims if we're using the zero-element array | |||
6290 | // constant. | |||
6291 | if (ArrayLit->getNumElements() == 0 && | |||
6292 | Context.getLangOpts().ObjCRuntime.hasEmptyCollections()) | |||
6293 | return E; | |||
6294 | ||||
6295 | D = ArrayLit->getArrayWithObjectsMethod(); | |||
6296 | } else if (ObjCDictionaryLiteral *DictLit | |||
6297 | = dyn_cast<ObjCDictionaryLiteral>(E)) { | |||
6298 | // Don't do reclaims if we're using the zero-element dictionary | |||
6299 | // constant. | |||
6300 | if (DictLit->getNumElements() == 0 && | |||
6301 | Context.getLangOpts().ObjCRuntime.hasEmptyCollections()) | |||
6302 | return E; | |||
6303 | ||||
6304 | D = DictLit->getDictWithObjectsMethod(); | |||
6305 | } | |||
6306 | ||||
6307 | ReturnsRetained = (D && D->hasAttr<NSReturnsRetainedAttr>()); | |||
6308 | ||||
6309 | // Don't do reclaims on performSelector calls; despite their | |||
6310 | // return type, the invoked method doesn't necessarily actually | |||
6311 | // return an object. | |||
6312 | if (!ReturnsRetained && | |||
6313 | D && D->getMethodFamily() == OMF_performSelector) | |||
6314 | return E; | |||
6315 | } | |||
6316 | ||||
6317 | // Don't reclaim an object of Class type. | |||
6318 | if (!ReturnsRetained && E->getType()->isObjCARCImplicitlyUnretainedType()) | |||
6319 | return E; | |||
6320 | ||||
6321 | Cleanup.setExprNeedsCleanups(true); | |||
6322 | ||||
6323 | CastKind ck = (ReturnsRetained ? CK_ARCConsumeObject | |||
6324 | : CK_ARCReclaimReturnedObject); | |||
6325 | return ImplicitCastExpr::Create(Context, E->getType(), ck, E, nullptr, | |||
6326 | VK_RValue); | |||
6327 | } | |||
6328 | ||||
6329 | if (!getLangOpts().CPlusPlus) | |||
6330 | return E; | |||
6331 | ||||
6332 | // Search for the base element type (cf. ASTContext::getBaseElementType) with | |||
6333 | // a fast path for the common case that the type is directly a RecordType. | |||
6334 | const Type *T = Context.getCanonicalType(E->getType().getTypePtr()); | |||
6335 | const RecordType *RT = nullptr; | |||
6336 | while (!RT) { | |||
6337 | switch (T->getTypeClass()) { | |||
6338 | case Type::Record: | |||
6339 | RT = cast<RecordType>(T); | |||
6340 | break; | |||
6341 | case Type::ConstantArray: | |||
6342 | case Type::IncompleteArray: | |||
6343 | case Type::VariableArray: | |||
6344 | case Type::DependentSizedArray: | |||
6345 | T = cast<ArrayType>(T)->getElementType().getTypePtr(); | |||
6346 | break; | |||
6347 | default: | |||
6348 | return E; | |||
6349 | } | |||
6350 | } | |||
6351 | ||||
6352 | // That should be enough to guarantee that this type is complete, if we're | |||
6353 | // not processing a decltype expression. | |||
6354 | CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); | |||
6355 | if (RD->isInvalidDecl() || RD->isDependentContext()) | |||
6356 | return E; | |||
6357 | ||||
6358 | bool IsDecltype = ExprEvalContexts.back().IsDecltype; | |||
6359 | CXXDestructorDecl *Destructor = IsDecltype ? nullptr : LookupDestructor(RD); | |||
6360 | ||||
6361 | if (Destructor) { | |||
6362 | MarkFunctionReferenced(E->getExprLoc(), Destructor); | |||
6363 | CheckDestructorAccess(E->getExprLoc(), Destructor, | |||
6364 | PDiag(diag::err_access_dtor_temp) | |||
6365 | << E->getType()); | |||
6366 | if (DiagnoseUseOfDecl(Destructor, E->getExprLoc())) | |||
6367 | return ExprError(); | |||
6368 | ||||
6369 | // If destructor is trivial, we can avoid the extra copy. | |||
6370 | if (Destructor->isTrivial()) | |||
6371 | return E; | |||
6372 | ||||
6373 | // We need a cleanup, but we don't need to remember the temporary. | |||
6374 | Cleanup.setExprNeedsCleanups(true); | |||
6375 | } | |||
6376 | ||||
6377 | CXXTemporary *Temp = CXXTemporary::Create(Context, Destructor); | |||
6378 | CXXBindTemporaryExpr *Bind = CXXBindTemporaryExpr::Create(Context, Temp, E); | |||
6379 | ||||
6380 | if (IsDecltype) | |||
6381 | ExprEvalContexts.back().DelayedDecltypeBinds.push_back(Bind); | |||
6382 | ||||
6383 | return Bind; | |||
6384 | } | |||
6385 | ||||
6386 | ExprResult | |||
6387 | Sema::MaybeCreateExprWithCleanups(ExprResult SubExpr) { | |||
6388 | if (SubExpr.isInvalid()) | |||
6389 | return ExprError(); | |||
6390 | ||||
6391 | return MaybeCreateExprWithCleanups(SubExpr.get()); | |||
6392 | } | |||
6393 | ||||
6394 | Expr *Sema::MaybeCreateExprWithCleanups(Expr *SubExpr) { | |||
6395 | assert(SubExpr && "subexpression can't be null!")(static_cast <bool> (SubExpr && "subexpression can't be null!" ) ? void (0) : __assert_fail ("SubExpr && \"subexpression can't be null!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6395, __extension__ __PRETTY_FUNCTION__)); | |||
6396 | ||||
6397 | CleanupVarDeclMarking(); | |||
6398 | ||||
6399 | unsigned FirstCleanup = ExprEvalContexts.back().NumCleanupObjects; | |||
6400 | assert(ExprCleanupObjects.size() >= FirstCleanup)(static_cast <bool> (ExprCleanupObjects.size() >= FirstCleanup ) ? void (0) : __assert_fail ("ExprCleanupObjects.size() >= FirstCleanup" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6400, __extension__ __PRETTY_FUNCTION__)); | |||
6401 | assert(Cleanup.exprNeedsCleanups() ||(static_cast <bool> (Cleanup.exprNeedsCleanups() || ExprCleanupObjects .size() == FirstCleanup) ? void (0) : __assert_fail ("Cleanup.exprNeedsCleanups() || ExprCleanupObjects.size() == FirstCleanup" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6402, __extension__ __PRETTY_FUNCTION__)) | |||
6402 | ExprCleanupObjects.size() == FirstCleanup)(static_cast <bool> (Cleanup.exprNeedsCleanups() || ExprCleanupObjects .size() == FirstCleanup) ? void (0) : __assert_fail ("Cleanup.exprNeedsCleanups() || ExprCleanupObjects.size() == FirstCleanup" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6402, __extension__ __PRETTY_FUNCTION__)); | |||
6403 | if (!Cleanup.exprNeedsCleanups()) | |||
6404 | return SubExpr; | |||
6405 | ||||
6406 | auto Cleanups = llvm::makeArrayRef(ExprCleanupObjects.begin() + FirstCleanup, | |||
6407 | ExprCleanupObjects.size() - FirstCleanup); | |||
6408 | ||||
6409 | auto *E = ExprWithCleanups::Create( | |||
6410 | Context, SubExpr, Cleanup.cleanupsHaveSideEffects(), Cleanups); | |||
6411 | DiscardCleanupsInEvaluationContext(); | |||
6412 | ||||
6413 | return E; | |||
6414 | } | |||
6415 | ||||
6416 | Stmt *Sema::MaybeCreateStmtWithCleanups(Stmt *SubStmt) { | |||
6417 | assert(SubStmt && "sub-statement can't be null!")(static_cast <bool> (SubStmt && "sub-statement can't be null!" ) ? void (0) : __assert_fail ("SubStmt && \"sub-statement can't be null!\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6417, __extension__ __PRETTY_FUNCTION__)); | |||
6418 | ||||
6419 | CleanupVarDeclMarking(); | |||
6420 | ||||
6421 | if (!Cleanup.exprNeedsCleanups()) | |||
6422 | return SubStmt; | |||
6423 | ||||
6424 | // FIXME: In order to attach the temporaries, wrap the statement into | |||
6425 | // a StmtExpr; currently this is only used for asm statements. | |||
6426 | // This is hacky, either create a new CXXStmtWithTemporaries statement or | |||
6427 | // a new AsmStmtWithTemporaries. | |||
6428 | CompoundStmt *CompStmt = CompoundStmt::Create( | |||
6429 | Context, SubStmt, SourceLocation(), SourceLocation()); | |||
6430 | Expr *E = new (Context) StmtExpr(CompStmt, Context.VoidTy, SourceLocation(), | |||
6431 | SourceLocation()); | |||
6432 | return MaybeCreateExprWithCleanups(E); | |||
6433 | } | |||
6434 | ||||
6435 | /// Process the expression contained within a decltype. For such expressions, | |||
6436 | /// certain semantic checks on temporaries are delayed until this point, and | |||
6437 | /// are omitted for the 'topmost' call in the decltype expression. If the | |||
6438 | /// topmost call bound a temporary, strip that temporary off the expression. | |||
6439 | ExprResult Sema::ActOnDecltypeExpression(Expr *E) { | |||
6440 | assert(ExprEvalContexts.back().IsDecltype && "not in a decltype expression")(static_cast <bool> (ExprEvalContexts.back().IsDecltype && "not in a decltype expression") ? void (0) : __assert_fail ("ExprEvalContexts.back().IsDecltype && \"not in a decltype expression\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6440, __extension__ __PRETTY_FUNCTION__)); | |||
6441 | ||||
6442 | // C++11 [expr.call]p11: | |||
6443 | // If a function call is a prvalue of object type, | |||
6444 | // -- if the function call is either | |||
6445 | // -- the operand of a decltype-specifier, or | |||
6446 | // -- the right operand of a comma operator that is the operand of a | |||
6447 | // decltype-specifier, | |||
6448 | // a temporary object is not introduced for the prvalue. | |||
6449 | ||||
6450 | // Recursively rebuild ParenExprs and comma expressions to strip out the | |||
6451 | // outermost CXXBindTemporaryExpr, if any. | |||
6452 | if (ParenExpr *PE = dyn_cast<ParenExpr>(E)) { | |||
6453 | ExprResult SubExpr = ActOnDecltypeExpression(PE->getSubExpr()); | |||
6454 | if (SubExpr.isInvalid()) | |||
6455 | return ExprError(); | |||
6456 | if (SubExpr.get() == PE->getSubExpr()) | |||
6457 | return E; | |||
6458 | return ActOnParenExpr(PE->getLParen(), PE->getRParen(), SubExpr.get()); | |||
6459 | } | |||
6460 | if (BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) { | |||
6461 | if (BO->getOpcode() == BO_Comma) { | |||
6462 | ExprResult RHS = ActOnDecltypeExpression(BO->getRHS()); | |||
6463 | if (RHS.isInvalid()) | |||
6464 | return ExprError(); | |||
6465 | if (RHS.get() == BO->getRHS()) | |||
6466 | return E; | |||
6467 | return new (Context) BinaryOperator( | |||
6468 | BO->getLHS(), RHS.get(), BO_Comma, BO->getType(), BO->getValueKind(), | |||
6469 | BO->getObjectKind(), BO->getOperatorLoc(), BO->getFPFeatures()); | |||
6470 | } | |||
6471 | } | |||
6472 | ||||
6473 | CXXBindTemporaryExpr *TopBind = dyn_cast<CXXBindTemporaryExpr>(E); | |||
6474 | CallExpr *TopCall = TopBind ? dyn_cast<CallExpr>(TopBind->getSubExpr()) | |||
6475 | : nullptr; | |||
6476 | if (TopCall) | |||
6477 | E = TopCall; | |||
6478 | else | |||
6479 | TopBind = nullptr; | |||
6480 | ||||
6481 | // Disable the special decltype handling now. | |||
6482 | ExprEvalContexts.back().IsDecltype = false; | |||
6483 | ||||
6484 | // In MS mode, don't perform any extra checking of call return types within a | |||
6485 | // decltype expression. | |||
6486 | if (getLangOpts().MSVCCompat) | |||
6487 | return E; | |||
6488 | ||||
6489 | // Perform the semantic checks we delayed until this point. | |||
6490 | for (unsigned I = 0, N = ExprEvalContexts.back().DelayedDecltypeCalls.size(); | |||
6491 | I != N; ++I) { | |||
6492 | CallExpr *Call = ExprEvalContexts.back().DelayedDecltypeCalls[I]; | |||
6493 | if (Call == TopCall) | |||
6494 | continue; | |||
6495 | ||||
6496 | if (CheckCallReturnType(Call->getCallReturnType(Context), | |||
6497 | Call->getLocStart(), | |||
6498 | Call, Call->getDirectCallee())) | |||
6499 | return ExprError(); | |||
6500 | } | |||
6501 | ||||
6502 | // Now all relevant types are complete, check the destructors are accessible | |||
6503 | // and non-deleted, and annotate them on the temporaries. | |||
6504 | for (unsigned I = 0, N = ExprEvalContexts.back().DelayedDecltypeBinds.size(); | |||
6505 | I != N; ++I) { | |||
6506 | CXXBindTemporaryExpr *Bind = | |||
6507 | ExprEvalContexts.back().DelayedDecltypeBinds[I]; | |||
6508 | if (Bind == TopBind) | |||
6509 | continue; | |||
6510 | ||||
6511 | CXXTemporary *Temp = Bind->getTemporary(); | |||
6512 | ||||
6513 | CXXRecordDecl *RD = | |||
6514 | Bind->getType()->getBaseElementTypeUnsafe()->getAsCXXRecordDecl(); | |||
6515 | CXXDestructorDecl *Destructor = LookupDestructor(RD); | |||
6516 | Temp->setDestructor(Destructor); | |||
6517 | ||||
6518 | MarkFunctionReferenced(Bind->getExprLoc(), Destructor); | |||
6519 | CheckDestructorAccess(Bind->getExprLoc(), Destructor, | |||
6520 | PDiag(diag::err_access_dtor_temp) | |||
6521 | << Bind->getType()); | |||
6522 | if (DiagnoseUseOfDecl(Destructor, Bind->getExprLoc())) | |||
6523 | return ExprError(); | |||
6524 | ||||
6525 | // We need a cleanup, but we don't need to remember the temporary. | |||
6526 | Cleanup.setExprNeedsCleanups(true); | |||
6527 | } | |||
6528 | ||||
6529 | // Possibly strip off the top CXXBindTemporaryExpr. | |||
6530 | return E; | |||
6531 | } | |||
6532 | ||||
6533 | /// Note a set of 'operator->' functions that were used for a member access. | |||
6534 | static void noteOperatorArrows(Sema &S, | |||
6535 | ArrayRef<FunctionDecl *> OperatorArrows) { | |||
6536 | unsigned SkipStart = OperatorArrows.size(), SkipCount = 0; | |||
6537 | // FIXME: Make this configurable? | |||
6538 | unsigned Limit = 9; | |||
6539 | if (OperatorArrows.size() > Limit) { | |||
6540 | // Produce Limit-1 normal notes and one 'skipping' note. | |||
6541 | SkipStart = (Limit - 1) / 2 + (Limit - 1) % 2; | |||
6542 | SkipCount = OperatorArrows.size() - (Limit - 1); | |||
6543 | } | |||
6544 | ||||
6545 | for (unsigned I = 0; I < OperatorArrows.size(); /**/) { | |||
6546 | if (I == SkipStart) { | |||
6547 | S.Diag(OperatorArrows[I]->getLocation(), | |||
6548 | diag::note_operator_arrows_suppressed) | |||
6549 | << SkipCount; | |||
6550 | I += SkipCount; | |||
6551 | } else { | |||
6552 | S.Diag(OperatorArrows[I]->getLocation(), diag::note_operator_arrow_here) | |||
6553 | << OperatorArrows[I]->getCallResultType(); | |||
6554 | ++I; | |||
6555 | } | |||
6556 | } | |||
6557 | } | |||
6558 | ||||
6559 | ExprResult Sema::ActOnStartCXXMemberReference(Scope *S, Expr *Base, | |||
6560 | SourceLocation OpLoc, | |||
6561 | tok::TokenKind OpKind, | |||
6562 | ParsedType &ObjectType, | |||
6563 | bool &MayBePseudoDestructor) { | |||
6564 | // Since this might be a postfix expression, get rid of ParenListExprs. | |||
6565 | ExprResult Result = MaybeConvertParenListExprToParenExpr(S, Base); | |||
6566 | if (Result.isInvalid()) return ExprError(); | |||
6567 | Base = Result.get(); | |||
6568 | ||||
6569 | Result = CheckPlaceholderExpr(Base); | |||
6570 | if (Result.isInvalid()) return ExprError(); | |||
6571 | Base = Result.get(); | |||
6572 | ||||
6573 | QualType BaseType = Base->getType(); | |||
6574 | MayBePseudoDestructor = false; | |||
6575 | if (BaseType->isDependentType()) { | |||
6576 | // If we have a pointer to a dependent type and are using the -> operator, | |||
6577 | // the object type is the type that the pointer points to. We might still | |||
6578 | // have enough information about that type to do something useful. | |||
6579 | if (OpKind == tok::arrow) | |||
6580 | if (const PointerType *Ptr = BaseType->getAs<PointerType>()) | |||
6581 | BaseType = Ptr->getPointeeType(); | |||
6582 | ||||
6583 | ObjectType = ParsedType::make(BaseType); | |||
6584 | MayBePseudoDestructor = true; | |||
6585 | return Base; | |||
6586 | } | |||
6587 | ||||
6588 | // C++ [over.match.oper]p8: | |||
6589 | // [...] When operator->returns, the operator-> is applied to the value | |||
6590 | // returned, with the original second operand. | |||
6591 | if (OpKind == tok::arrow) { | |||
6592 | QualType StartingType = BaseType; | |||
6593 | bool NoArrowOperatorFound = false; | |||
6594 | bool FirstIteration = true; | |||
6595 | FunctionDecl *CurFD = dyn_cast<FunctionDecl>(CurContext); | |||
6596 | // The set of types we've considered so far. | |||
6597 | llvm::SmallPtrSet<CanQualType,8> CTypes; | |||
6598 | SmallVector<FunctionDecl*, 8> OperatorArrows; | |||
6599 | CTypes.insert(Context.getCanonicalType(BaseType)); | |||
6600 | ||||
6601 | while (BaseType->isRecordType()) { | |||
6602 | if (OperatorArrows.size() >= getLangOpts().ArrowDepth) { | |||
6603 | Diag(OpLoc, diag::err_operator_arrow_depth_exceeded) | |||
6604 | << StartingType << getLangOpts().ArrowDepth << Base->getSourceRange(); | |||
6605 | noteOperatorArrows(*this, OperatorArrows); | |||
6606 | Diag(OpLoc, diag::note_operator_arrow_depth) | |||
6607 | << getLangOpts().ArrowDepth; | |||
6608 | return ExprError(); | |||
6609 | } | |||
6610 | ||||
6611 | Result = BuildOverloadedArrowExpr( | |||
6612 | S, Base, OpLoc, | |||
6613 | // When in a template specialization and on the first loop iteration, | |||
6614 | // potentially give the default diagnostic (with the fixit in a | |||
6615 | // separate note) instead of having the error reported back to here | |||
6616 | // and giving a diagnostic with a fixit attached to the error itself. | |||
6617 | (FirstIteration && CurFD && CurFD->isFunctionTemplateSpecialization()) | |||
6618 | ? nullptr | |||
6619 | : &NoArrowOperatorFound); | |||
6620 | if (Result.isInvalid()) { | |||
6621 | if (NoArrowOperatorFound) { | |||
6622 | if (FirstIteration) { | |||
6623 | Diag(OpLoc, diag::err_typecheck_member_reference_suggestion) | |||
6624 | << BaseType << 1 << Base->getSourceRange() | |||
6625 | << FixItHint::CreateReplacement(OpLoc, "."); | |||
6626 | OpKind = tok::period; | |||
6627 | break; | |||
6628 | } | |||
6629 | Diag(OpLoc, diag::err_typecheck_member_reference_arrow) | |||
6630 | << BaseType << Base->getSourceRange(); | |||
6631 | CallExpr *CE = dyn_cast<CallExpr>(Base); | |||
6632 | if (Decl *CD = (CE ? CE->getCalleeDecl() : nullptr)) { | |||
6633 | Diag(CD->getLocStart(), | |||
6634 | diag::note_member_reference_arrow_from_operator_arrow); | |||
6635 | } | |||
6636 | } | |||
6637 | return ExprError(); | |||
6638 | } | |||
6639 | Base = Result.get(); | |||
6640 | if (CXXOperatorCallExpr *OpCall = dyn_cast<CXXOperatorCallExpr>(Base)) | |||
6641 | OperatorArrows.push_back(OpCall->getDirectCallee()); | |||
6642 | BaseType = Base->getType(); | |||
6643 | CanQualType CBaseType = Context.getCanonicalType(BaseType); | |||
6644 | if (!CTypes.insert(CBaseType).second) { | |||
6645 | Diag(OpLoc, diag::err_operator_arrow_circular) << StartingType; | |||
6646 | noteOperatorArrows(*this, OperatorArrows); | |||
6647 | return ExprError(); | |||
6648 | } | |||
6649 | FirstIteration = false; | |||
6650 | } | |||
6651 | ||||
6652 | if (OpKind == tok::arrow && | |||
6653 | (BaseType->isPointerType() || BaseType->isObjCObjectPointerType())) | |||
6654 | BaseType = BaseType->getPointeeType(); | |||
6655 | } | |||
6656 | ||||
6657 | // Objective-C properties allow "." access on Objective-C pointer types, | |||
6658 | // so adjust the base type to the object type itself. | |||
6659 | if (BaseType->isObjCObjectPointerType()) | |||
6660 | BaseType = BaseType->getPointeeType(); | |||
6661 | ||||
6662 | // C++ [basic.lookup.classref]p2: | |||
6663 | // [...] If the type of the object expression is of pointer to scalar | |||
6664 | // type, the unqualified-id is looked up in the context of the complete | |||
6665 | // postfix-expression. | |||
6666 | // | |||
6667 | // This also indicates that we could be parsing a pseudo-destructor-name. | |||
6668 | // Note that Objective-C class and object types can be pseudo-destructor | |||
6669 | // expressions or normal member (ivar or property) access expressions, and | |||
6670 | // it's legal for the type to be incomplete if this is a pseudo-destructor | |||
6671 | // call. We'll do more incomplete-type checks later in the lookup process, | |||
6672 | // so just skip this check for ObjC types. | |||
6673 | if (BaseType->isObjCObjectOrInterfaceType()) { | |||
6674 | ObjectType = ParsedType::make(BaseType); | |||
6675 | MayBePseudoDestructor = true; | |||
6676 | return Base; | |||
6677 | } else if (!BaseType->isRecordType()) { | |||
6678 | ObjectType = nullptr; | |||
6679 | MayBePseudoDestructor = true; | |||
6680 | return Base; | |||
6681 | } | |||
6682 | ||||
6683 | // The object type must be complete (or dependent), or | |||
6684 | // C++11 [expr.prim.general]p3: | |||
6685 | // Unlike the object expression in other contexts, *this is not required to | |||
6686 | // be of complete type for purposes of class member access (5.2.5) outside | |||
6687 | // the member function body. | |||
6688 | if (!BaseType->isDependentType() && | |||
6689 | !isThisOutsideMemberFunctionBody(BaseType) && | |||
6690 | RequireCompleteType(OpLoc, BaseType, diag::err_incomplete_member_access)) | |||
6691 | return ExprError(); | |||
6692 | ||||
6693 | // C++ [basic.lookup.classref]p2: | |||
6694 | // If the id-expression in a class member access (5.2.5) is an | |||
6695 | // unqualified-id, and the type of the object expression is of a class | |||
6696 | // type C (or of pointer to a class type C), the unqualified-id is looked | |||
6697 | // up in the scope of class C. [...] | |||
6698 | ObjectType = ParsedType::make(BaseType); | |||
6699 | return Base; | |||
6700 | } | |||
6701 | ||||
6702 | static bool CheckArrow(Sema& S, QualType& ObjectType, Expr *&Base, | |||
6703 | tok::TokenKind& OpKind, SourceLocation OpLoc) { | |||
6704 | if (Base->hasPlaceholderType()) { | |||
6705 | ExprResult result = S.CheckPlaceholderExpr(Base); | |||
6706 | if (result.isInvalid()) return true; | |||
6707 | Base = result.get(); | |||
6708 | } | |||
6709 | ObjectType = Base->getType(); | |||
6710 | ||||
6711 | // C++ [expr.pseudo]p2: | |||
6712 | // The left-hand side of the dot operator shall be of scalar type. The | |||
6713 | // left-hand side of the arrow operator shall be of pointer to scalar type. | |||
6714 | // This scalar type is the object type. | |||
6715 | // Note that this is rather different from the normal handling for the | |||
6716 | // arrow operator. | |||
6717 | if (OpKind == tok::arrow) { | |||
6718 | if (const PointerType *Ptr = ObjectType->getAs<PointerType>()) { | |||
6719 | ObjectType = Ptr->getPointeeType(); | |||
6720 | } else if (!Base->isTypeDependent()) { | |||
6721 | // The user wrote "p->" when they probably meant "p."; fix it. | |||
6722 | S.Diag(OpLoc, diag::err_typecheck_member_reference_suggestion) | |||
6723 | << ObjectType << true | |||
6724 | << FixItHint::CreateReplacement(OpLoc, "."); | |||
6725 | if (S.isSFINAEContext()) | |||
6726 | return true; | |||
6727 | ||||
6728 | OpKind = tok::period; | |||
6729 | } | |||
6730 | } | |||
6731 | ||||
6732 | return false; | |||
6733 | } | |||
6734 | ||||
6735 | /// \brief Check if it's ok to try and recover dot pseudo destructor calls on | |||
6736 | /// pointer objects. | |||
6737 | static bool | |||
6738 | canRecoverDotPseudoDestructorCallsOnPointerObjects(Sema &SemaRef, | |||
6739 | QualType DestructedType) { | |||
6740 | // If this is a record type, check if its destructor is callable. | |||
6741 | if (auto *RD = DestructedType->getAsCXXRecordDecl()) { | |||
6742 | if (CXXDestructorDecl *D = SemaRef.LookupDestructor(RD)) | |||
6743 | return SemaRef.CanUseDecl(D, /*TreatUnavailableAsInvalid=*/false); | |||
6744 | return false; | |||
6745 | } | |||
6746 | ||||
6747 | // Otherwise, check if it's a type for which it's valid to use a pseudo-dtor. | |||
6748 | return DestructedType->isDependentType() || DestructedType->isScalarType() || | |||
6749 | DestructedType->isVectorType(); | |||
6750 | } | |||
6751 | ||||
6752 | ExprResult Sema::BuildPseudoDestructorExpr(Expr *Base, | |||
6753 | SourceLocation OpLoc, | |||
6754 | tok::TokenKind OpKind, | |||
6755 | const CXXScopeSpec &SS, | |||
6756 | TypeSourceInfo *ScopeTypeInfo, | |||
6757 | SourceLocation CCLoc, | |||
6758 | SourceLocation TildeLoc, | |||
6759 | PseudoDestructorTypeStorage Destructed) { | |||
6760 | TypeSourceInfo *DestructedTypeInfo = Destructed.getTypeSourceInfo(); | |||
6761 | ||||
6762 | QualType ObjectType; | |||
6763 | if (CheckArrow(*this, ObjectType, Base, OpKind, OpLoc)) | |||
6764 | return ExprError(); | |||
6765 | ||||
6766 | if (!ObjectType->isDependentType() && !ObjectType->isScalarType() && | |||
6767 | !ObjectType->isVectorType()) { | |||
6768 | if (getLangOpts().MSVCCompat && ObjectType->isVoidType()) | |||
6769 | Diag(OpLoc, diag::ext_pseudo_dtor_on_void) << Base->getSourceRange(); | |||
6770 | else { | |||
6771 | Diag(OpLoc, diag::err_pseudo_dtor_base_not_scalar) | |||
6772 | << ObjectType << Base->getSourceRange(); | |||
6773 | return ExprError(); | |||
6774 | } | |||
6775 | } | |||
6776 | ||||
6777 | // C++ [expr.pseudo]p2: | |||
6778 | // [...] The cv-unqualified versions of the object type and of the type | |||
6779 | // designated by the pseudo-destructor-name shall be the same type. | |||
6780 | if (DestructedTypeInfo) { | |||
6781 | QualType DestructedType = DestructedTypeInfo->getType(); | |||
6782 | SourceLocation DestructedTypeStart | |||
6783 | = DestructedTypeInfo->getTypeLoc().getLocalSourceRange().getBegin(); | |||
6784 | if (!DestructedType->isDependentType() && !ObjectType->isDependentType()) { | |||
6785 | if (!Context.hasSameUnqualifiedType(DestructedType, ObjectType)) { | |||
6786 | // Detect dot pseudo destructor calls on pointer objects, e.g.: | |||
6787 | // Foo *foo; | |||
6788 | // foo.~Foo(); | |||
6789 | if (OpKind == tok::period && ObjectType->isPointerType() && | |||
6790 | Context.hasSameUnqualifiedType(DestructedType, | |||
6791 | ObjectType->getPointeeType())) { | |||
6792 | auto Diagnostic = | |||
6793 | Diag(OpLoc, diag::err_typecheck_member_reference_suggestion) | |||
6794 | << ObjectType << /*IsArrow=*/0 << Base->getSourceRange(); | |||
6795 | ||||
6796 | // Issue a fixit only when the destructor is valid. | |||
6797 | if (canRecoverDotPseudoDestructorCallsOnPointerObjects( | |||
6798 | *this, DestructedType)) | |||
6799 | Diagnostic << FixItHint::CreateReplacement(OpLoc, "->"); | |||
6800 | ||||
6801 | // Recover by setting the object type to the destructed type and the | |||
6802 | // operator to '->'. | |||
6803 | ObjectType = DestructedType; | |||
6804 | OpKind = tok::arrow; | |||
6805 | } else { | |||
6806 | Diag(DestructedTypeStart, diag::err_pseudo_dtor_type_mismatch) | |||
6807 | << ObjectType << DestructedType << Base->getSourceRange() | |||
6808 | << DestructedTypeInfo->getTypeLoc().getLocalSourceRange(); | |||
6809 | ||||
6810 | // Recover by setting the destructed type to the object type. | |||
6811 | DestructedType = ObjectType; | |||
6812 | DestructedTypeInfo = | |||
6813 | Context.getTrivialTypeSourceInfo(ObjectType, DestructedTypeStart); | |||
6814 | Destructed = PseudoDestructorTypeStorage(DestructedTypeInfo); | |||
6815 | } | |||
6816 | } else if (DestructedType.getObjCLifetime() != | |||
6817 | ObjectType.getObjCLifetime()) { | |||
6818 | ||||
6819 | if (DestructedType.getObjCLifetime() == Qualifiers::OCL_None) { | |||
6820 | // Okay: just pretend that the user provided the correctly-qualified | |||
6821 | // type. | |||
6822 | } else { | |||
6823 | Diag(DestructedTypeStart, diag::err_arc_pseudo_dtor_inconstant_quals) | |||
6824 | << ObjectType << DestructedType << Base->getSourceRange() | |||
6825 | << DestructedTypeInfo->getTypeLoc().getLocalSourceRange(); | |||
6826 | } | |||
6827 | ||||
6828 | // Recover by setting the destructed type to the object type. | |||
6829 | DestructedType = ObjectType; | |||
6830 | DestructedTypeInfo = Context.getTrivialTypeSourceInfo(ObjectType, | |||
6831 | DestructedTypeStart); | |||
6832 | Destructed = PseudoDestructorTypeStorage(DestructedTypeInfo); | |||
6833 | } | |||
6834 | } | |||
6835 | } | |||
6836 | ||||
6837 | // C++ [expr.pseudo]p2: | |||
6838 | // [...] Furthermore, the two type-names in a pseudo-destructor-name of the | |||
6839 | // form | |||
6840 | // | |||
6841 | // ::[opt] nested-name-specifier[opt] type-name :: ~ type-name | |||
6842 | // | |||
6843 | // shall designate the same scalar type. | |||
6844 | if (ScopeTypeInfo) { | |||
6845 | QualType ScopeType = ScopeTypeInfo->getType(); | |||
6846 | if (!ScopeType->isDependentType() && !ObjectType->isDependentType() && | |||
6847 | !Context.hasSameUnqualifiedType(ScopeType, ObjectType)) { | |||
6848 | ||||
6849 | Diag(ScopeTypeInfo->getTypeLoc().getLocalSourceRange().getBegin(), | |||
6850 | diag::err_pseudo_dtor_type_mismatch) | |||
6851 | << ObjectType << ScopeType << Base->getSourceRange() | |||
6852 | << ScopeTypeInfo->getTypeLoc().getLocalSourceRange(); | |||
6853 | ||||
6854 | ScopeType = QualType(); | |||
6855 | ScopeTypeInfo = nullptr; | |||
6856 | } | |||
6857 | } | |||
6858 | ||||
6859 | Expr *Result | |||
6860 | = new (Context) CXXPseudoDestructorExpr(Context, Base, | |||
6861 | OpKind == tok::arrow, OpLoc, | |||
6862 | SS.getWithLocInContext(Context), | |||
6863 | ScopeTypeInfo, | |||
6864 | CCLoc, | |||
6865 | TildeLoc, | |||
6866 | Destructed); | |||
6867 | ||||
6868 | return Result; | |||
6869 | } | |||
6870 | ||||
6871 | ExprResult Sema::ActOnPseudoDestructorExpr(Scope *S, Expr *Base, | |||
6872 | SourceLocation OpLoc, | |||
6873 | tok::TokenKind OpKind, | |||
6874 | CXXScopeSpec &SS, | |||
6875 | UnqualifiedId &FirstTypeName, | |||
6876 | SourceLocation CCLoc, | |||
6877 | SourceLocation TildeLoc, | |||
6878 | UnqualifiedId &SecondTypeName) { | |||
6879 | assert((FirstTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId ||(static_cast <bool> ((FirstTypeName.getKind() == UnqualifiedIdKind ::IK_TemplateId || FirstTypeName.getKind() == UnqualifiedIdKind ::IK_Identifier) && "Invalid first type name in pseudo-destructor" ) ? void (0) : __assert_fail ("(FirstTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || FirstTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) && \"Invalid first type name in pseudo-destructor\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6881, __extension__ __PRETTY_FUNCTION__)) | |||
6880 | FirstTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) &&(static_cast <bool> ((FirstTypeName.getKind() == UnqualifiedIdKind ::IK_TemplateId || FirstTypeName.getKind() == UnqualifiedIdKind ::IK_Identifier) && "Invalid first type name in pseudo-destructor" ) ? void (0) : __assert_fail ("(FirstTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || FirstTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) && \"Invalid first type name in pseudo-destructor\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6881, __extension__ __PRETTY_FUNCTION__)) | |||
6881 | "Invalid first type name in pseudo-destructor")(static_cast <bool> ((FirstTypeName.getKind() == UnqualifiedIdKind ::IK_TemplateId || FirstTypeName.getKind() == UnqualifiedIdKind ::IK_Identifier) && "Invalid first type name in pseudo-destructor" ) ? void (0) : __assert_fail ("(FirstTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || FirstTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) && \"Invalid first type name in pseudo-destructor\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6881, __extension__ __PRETTY_FUNCTION__)); | |||
6882 | assert((SecondTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId ||(static_cast <bool> ((SecondTypeName.getKind() == UnqualifiedIdKind ::IK_TemplateId || SecondTypeName.getKind() == UnqualifiedIdKind ::IK_Identifier) && "Invalid second type name in pseudo-destructor" ) ? void (0) : __assert_fail ("(SecondTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || SecondTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) && \"Invalid second type name in pseudo-destructor\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6884, __extension__ __PRETTY_FUNCTION__)) | |||
6883 | SecondTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) &&(static_cast <bool> ((SecondTypeName.getKind() == UnqualifiedIdKind ::IK_TemplateId || SecondTypeName.getKind() == UnqualifiedIdKind ::IK_Identifier) && "Invalid second type name in pseudo-destructor" ) ? void (0) : __assert_fail ("(SecondTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || SecondTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) && \"Invalid second type name in pseudo-destructor\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6884, __extension__ __PRETTY_FUNCTION__)) | |||
6884 | "Invalid second type name in pseudo-destructor")(static_cast <bool> ((SecondTypeName.getKind() == UnqualifiedIdKind ::IK_TemplateId || SecondTypeName.getKind() == UnqualifiedIdKind ::IK_Identifier) && "Invalid second type name in pseudo-destructor" ) ? void (0) : __assert_fail ("(SecondTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || SecondTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) && \"Invalid second type name in pseudo-destructor\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 6884, __extension__ __PRETTY_FUNCTION__)); | |||
6885 | ||||
6886 | QualType ObjectType; | |||
6887 | if (CheckArrow(*this, ObjectType, Base, OpKind, OpLoc)) | |||
6888 | return ExprError(); | |||
6889 | ||||
6890 | // Compute the object type that we should use for name lookup purposes. Only | |||
6891 | // record types and dependent types matter. | |||
6892 | ParsedType ObjectTypePtrForLookup; | |||
6893 | if (!SS.isSet()) { | |||
6894 | if (ObjectType->isRecordType()) | |||
6895 | ObjectTypePtrForLookup = ParsedType::make(ObjectType); | |||
6896 | else if (ObjectType->isDependentType()) | |||
6897 | ObjectTypePtrForLookup = ParsedType::make(Context.DependentTy); | |||
6898 | } | |||
6899 | ||||
6900 | // Convert the name of the type being destructed (following the ~) into a | |||
6901 | // type (with source-location information). | |||
6902 | QualType DestructedType; | |||
6903 | TypeSourceInfo *DestructedTypeInfo = nullptr; | |||
6904 | PseudoDestructorTypeStorage Destructed; | |||
6905 | if (SecondTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) { | |||
6906 | ParsedType T = getTypeName(*SecondTypeName.Identifier, | |||
6907 | SecondTypeName.StartLocation, | |||
6908 | S, &SS, true, false, ObjectTypePtrForLookup, | |||
6909 | /*IsCtorOrDtorName*/true); | |||
6910 | if (!T && | |||
6911 | ((SS.isSet() && !computeDeclContext(SS, false)) || | |||
6912 | (!SS.isSet() && ObjectType->isDependentType()))) { | |||
6913 | // The name of the type being destroyed is a dependent name, and we | |||
6914 | // couldn't find anything useful in scope. Just store the identifier and | |||
6915 | // it's location, and we'll perform (qualified) name lookup again at | |||
6916 | // template instantiation time. | |||
6917 | Destructed = PseudoDestructorTypeStorage(SecondTypeName.Identifier, | |||
6918 | SecondTypeName.StartLocation); | |||
6919 | } else if (!T) { | |||
6920 | Diag(SecondTypeName.StartLocation, | |||
6921 | diag::err_pseudo_dtor_destructor_non_type) | |||
6922 | << SecondTypeName.Identifier << ObjectType; | |||
6923 | if (isSFINAEContext()) | |||
6924 | return ExprError(); | |||
6925 | ||||
6926 | // Recover by assuming we had the right type all along. | |||
6927 | DestructedType = ObjectType; | |||
6928 | } else | |||
6929 | DestructedType = GetTypeFromParser(T, &DestructedTypeInfo); | |||
6930 | } else { | |||
6931 | // Resolve the template-id to a type. | |||
6932 | TemplateIdAnnotation *TemplateId = SecondTypeName.TemplateId; | |||
6933 | ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), | |||
6934 | TemplateId->NumArgs); | |||
6935 | TypeResult T = ActOnTemplateIdType(TemplateId->SS, | |||
6936 | TemplateId->TemplateKWLoc, | |||
6937 | TemplateId->Template, | |||
6938 | TemplateId->Name, | |||
6939 | TemplateId->TemplateNameLoc, | |||
6940 | TemplateId->LAngleLoc, | |||
6941 | TemplateArgsPtr, | |||
6942 | TemplateId->RAngleLoc, | |||
6943 | /*IsCtorOrDtorName*/true); | |||
6944 | if (T.isInvalid() || !T.get()) { | |||
6945 | // Recover by assuming we had the right type all along. | |||
6946 | DestructedType = ObjectType; | |||
6947 | } else | |||
6948 | DestructedType = GetTypeFromParser(T.get(), &DestructedTypeInfo); | |||
6949 | } | |||
6950 | ||||
6951 | // If we've performed some kind of recovery, (re-)build the type source | |||
6952 | // information. | |||
6953 | if (!DestructedType.isNull()) { | |||
6954 | if (!DestructedTypeInfo) | |||
6955 | DestructedTypeInfo = Context.getTrivialTypeSourceInfo(DestructedType, | |||
6956 | SecondTypeName.StartLocation); | |||
6957 | Destructed = PseudoDestructorTypeStorage(DestructedTypeInfo); | |||
6958 | } | |||
6959 | ||||
6960 | // Convert the name of the scope type (the type prior to '::') into a type. | |||
6961 | TypeSourceInfo *ScopeTypeInfo = nullptr; | |||
6962 | QualType ScopeType; | |||
6963 | if (FirstTypeName.getKind() == UnqualifiedIdKind::IK_TemplateId || | |||
6964 | FirstTypeName.Identifier) { | |||
6965 | if (FirstTypeName.getKind() == UnqualifiedIdKind::IK_Identifier) { | |||
6966 | ParsedType T = getTypeName(*FirstTypeName.Identifier, | |||
6967 | FirstTypeName.StartLocation, | |||
6968 | S, &SS, true, false, ObjectTypePtrForLookup, | |||
6969 | /*IsCtorOrDtorName*/true); | |||
6970 | if (!T) { | |||
6971 | Diag(FirstTypeName.StartLocation, | |||
6972 | diag::err_pseudo_dtor_destructor_non_type) | |||
6973 | << FirstTypeName.Identifier << ObjectType; | |||
6974 | ||||
6975 | if (isSFINAEContext()) | |||
6976 | return ExprError(); | |||
6977 | ||||
6978 | // Just drop this type. It's unnecessary anyway. | |||
6979 | ScopeType = QualType(); | |||
6980 | } else | |||
6981 | ScopeType = GetTypeFromParser(T, &ScopeTypeInfo); | |||
6982 | } else { | |||
6983 | // Resolve the template-id to a type. | |||
6984 | TemplateIdAnnotation *TemplateId = FirstTypeName.TemplateId; | |||
6985 | ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), | |||
6986 | TemplateId->NumArgs); | |||
6987 | TypeResult T = ActOnTemplateIdType(TemplateId->SS, | |||
6988 | TemplateId->TemplateKWLoc, | |||
6989 | TemplateId->Template, | |||
6990 | TemplateId->Name, | |||
6991 | TemplateId->TemplateNameLoc, | |||
6992 | TemplateId->LAngleLoc, | |||
6993 | TemplateArgsPtr, | |||
6994 | TemplateId->RAngleLoc, | |||
6995 | /*IsCtorOrDtorName*/true); | |||
6996 | if (T.isInvalid() || !T.get()) { | |||
6997 | // Recover by dropping this type. | |||
6998 | ScopeType = QualType(); | |||
6999 | } else | |||
7000 | ScopeType = GetTypeFromParser(T.get(), &ScopeTypeInfo); | |||
7001 | } | |||
7002 | } | |||
7003 | ||||
7004 | if (!ScopeType.isNull() && !ScopeTypeInfo) | |||
7005 | ScopeTypeInfo = Context.getTrivialTypeSourceInfo(ScopeType, | |||
7006 | FirstTypeName.StartLocation); | |||
7007 | ||||
7008 | ||||
7009 | return BuildPseudoDestructorExpr(Base, OpLoc, OpKind, SS, | |||
7010 | ScopeTypeInfo, CCLoc, TildeLoc, | |||
7011 | Destructed); | |||
7012 | } | |||
7013 | ||||
7014 | ExprResult Sema::ActOnPseudoDestructorExpr(Scope *S, Expr *Base, | |||
7015 | SourceLocation OpLoc, | |||
7016 | tok::TokenKind OpKind, | |||
7017 | SourceLocation TildeLoc, | |||
7018 | const DeclSpec& DS) { | |||
7019 | QualType ObjectType; | |||
7020 | if (CheckArrow(*this, ObjectType, Base, OpKind, OpLoc)) | |||
7021 | return ExprError(); | |||
7022 | ||||
7023 | QualType T = BuildDecltypeType(DS.getRepAsExpr(), DS.getTypeSpecTypeLoc(), | |||
7024 | false); | |||
7025 | ||||
7026 | TypeLocBuilder TLB; | |||
7027 | DecltypeTypeLoc DecltypeTL = TLB.push<DecltypeTypeLoc>(T); | |||
7028 | DecltypeTL.setNameLoc(DS.getTypeSpecTypeLoc()); | |||
7029 | TypeSourceInfo *DestructedTypeInfo = TLB.getTypeSourceInfo(Context, T); | |||
7030 | PseudoDestructorTypeStorage Destructed(DestructedTypeInfo); | |||
7031 | ||||
7032 | return BuildPseudoDestructorExpr(Base, OpLoc, OpKind, CXXScopeSpec(), | |||
7033 | nullptr, SourceLocation(), TildeLoc, | |||
7034 | Destructed); | |||
7035 | } | |||
7036 | ||||
7037 | ExprResult Sema::BuildCXXMemberCallExpr(Expr *E, NamedDecl *FoundDecl, | |||
7038 | CXXConversionDecl *Method, | |||
7039 | bool HadMultipleCandidates) { | |||
7040 | if (Method->getParent()->isLambda() && | |||
7041 | Method->getConversionType()->isBlockPointerType()) { | |||
7042 | // This is a lambda coversion to block pointer; check if the argument | |||
7043 | // is a LambdaExpr. | |||
7044 | Expr *SubE = E; | |||
7045 | CastExpr *CE = dyn_cast<CastExpr>(SubE); | |||
7046 | if (CE && CE->getCastKind() == CK_NoOp) | |||
7047 | SubE = CE->getSubExpr(); | |||
7048 | SubE = SubE->IgnoreParens(); | |||
7049 | if (CXXBindTemporaryExpr *BE = dyn_cast<CXXBindTemporaryExpr>(SubE)) | |||
7050 | SubE = BE->getSubExpr(); | |||
7051 | if (isa<LambdaExpr>(SubE)) { | |||
7052 | // For the conversion to block pointer on a lambda expression, we | |||
7053 | // construct a special BlockLiteral instead; this doesn't really make | |||
7054 | // a difference in ARC, but outside of ARC the resulting block literal | |||
7055 | // follows the normal lifetime rules for block literals instead of being | |||
7056 | // autoreleased. | |||
7057 | DiagnosticErrorTrap Trap(Diags); | |||
7058 | PushExpressionEvaluationContext( | |||
7059 | ExpressionEvaluationContext::PotentiallyEvaluated); | |||
7060 | ExprResult Exp = BuildBlockForLambdaConversion(E->getExprLoc(), | |||
7061 | E->getExprLoc(), | |||
7062 | Method, E); | |||
7063 | PopExpressionEvaluationContext(); | |||
7064 | ||||
7065 | if (Exp.isInvalid()) | |||
7066 | Diag(E->getExprLoc(), diag::note_lambda_to_block_conv); | |||
7067 | return Exp; | |||
7068 | } | |||
7069 | } | |||
7070 | ||||
7071 | ExprResult Exp = PerformObjectArgumentInitialization(E, /*Qualifier=*/nullptr, | |||
7072 | FoundDecl, Method); | |||
7073 | if (Exp.isInvalid()) | |||
7074 | return true; | |||
7075 | ||||
7076 | MemberExpr *ME = new (Context) MemberExpr( | |||
7077 | Exp.get(), /*IsArrow=*/false, SourceLocation(), Method, SourceLocation(), | |||
7078 | Context.BoundMemberTy, VK_RValue, OK_Ordinary); | |||
7079 | if (HadMultipleCandidates) | |||
7080 | ME->setHadMultipleCandidates(true); | |||
7081 | MarkMemberReferenced(ME); | |||
7082 | ||||
7083 | QualType ResultType = Method->getReturnType(); | |||
7084 | ExprValueKind VK = Expr::getValueKindForType(ResultType); | |||
7085 | ResultType = ResultType.getNonLValueExprType(Context); | |||
7086 | ||||
7087 | CXXMemberCallExpr *CE = | |||
7088 | new (Context) CXXMemberCallExpr(Context, ME, None, ResultType, VK, | |||
7089 | Exp.get()->getLocEnd()); | |||
7090 | ||||
7091 | if (CheckFunctionCall(Method, CE, | |||
7092 | Method->getType()->castAs<FunctionProtoType>())) | |||
7093 | return ExprError(); | |||
7094 | ||||
7095 | return CE; | |||
7096 | } | |||
7097 | ||||
7098 | ExprResult Sema::BuildCXXNoexceptExpr(SourceLocation KeyLoc, Expr *Operand, | |||
7099 | SourceLocation RParen) { | |||
7100 | // If the operand is an unresolved lookup expression, the expression is ill- | |||
7101 | // formed per [over.over]p1, because overloaded function names cannot be used | |||
7102 | // without arguments except in explicit contexts. | |||
7103 | ExprResult R = CheckPlaceholderExpr(Operand); | |||
7104 | if (R.isInvalid()) | |||
7105 | return R; | |||
7106 | ||||
7107 | // The operand may have been modified when checking the placeholder type. | |||
7108 | Operand = R.get(); | |||
7109 | ||||
7110 | if (!inTemplateInstantiation() && Operand->HasSideEffects(Context, false)) { | |||
7111 | // The expression operand for noexcept is in an unevaluated expression | |||
7112 | // context, so side effects could result in unintended consequences. | |||
7113 | Diag(Operand->getExprLoc(), diag::warn_side_effects_unevaluated_context); | |||
7114 | } | |||
7115 | ||||
7116 | CanThrowResult CanThrow = canThrow(Operand); | |||
7117 | return new (Context) | |||
7118 | CXXNoexceptExpr(Context.BoolTy, Operand, CanThrow, KeyLoc, RParen); | |||
7119 | } | |||
7120 | ||||
7121 | ExprResult Sema::ActOnNoexceptExpr(SourceLocation KeyLoc, SourceLocation, | |||
7122 | Expr *Operand, SourceLocation RParen) { | |||
7123 | return BuildCXXNoexceptExpr(KeyLoc, Operand, RParen); | |||
7124 | } | |||
7125 | ||||
7126 | static bool IsSpecialDiscardedValue(Expr *E) { | |||
7127 | // In C++11, discarded-value expressions of a certain form are special, | |||
7128 | // according to [expr]p10: | |||
7129 | // The lvalue-to-rvalue conversion (4.1) is applied only if the | |||
7130 | // expression is an lvalue of volatile-qualified type and it has | |||
7131 | // one of the following forms: | |||
7132 | E = E->IgnoreParens(); | |||
7133 | ||||
7134 | // - id-expression (5.1.1), | |||
7135 | if (isa<DeclRefExpr>(E)) | |||
7136 | return true; | |||
7137 | ||||
7138 | // - subscripting (5.2.1), | |||
7139 | if (isa<ArraySubscriptExpr>(E)) | |||
7140 | return true; | |||
7141 | ||||
7142 | // - class member access (5.2.5), | |||
7143 | if (isa<MemberExpr>(E)) | |||
7144 | return true; | |||
7145 | ||||
7146 | // - indirection (5.3.1), | |||
7147 | if (UnaryOperator *UO = dyn_cast<UnaryOperator>(E)) | |||
7148 | if (UO->getOpcode() == UO_Deref) | |||
7149 | return true; | |||
7150 | ||||
7151 | if (BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) { | |||
7152 | // - pointer-to-member operation (5.5), | |||
7153 | if (BO->isPtrMemOp()) | |||
7154 | return true; | |||
7155 | ||||
7156 | // - comma expression (5.18) where the right operand is one of the above. | |||
7157 | if (BO->getOpcode() == BO_Comma) | |||
7158 | return IsSpecialDiscardedValue(BO->getRHS()); | |||
7159 | } | |||
7160 | ||||
7161 | // - conditional expression (5.16) where both the second and the third | |||
7162 | // operands are one of the above, or | |||
7163 | if (ConditionalOperator *CO = dyn_cast<ConditionalOperator>(E)) | |||
7164 | return IsSpecialDiscardedValue(CO->getTrueExpr()) && | |||
7165 | IsSpecialDiscardedValue(CO->getFalseExpr()); | |||
7166 | // The related edge case of "*x ?: *x". | |||
7167 | if (BinaryConditionalOperator *BCO = | |||
7168 | dyn_cast<BinaryConditionalOperator>(E)) { | |||
7169 | if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(BCO->getTrueExpr())) | |||
7170 | return IsSpecialDiscardedValue(OVE->getSourceExpr()) && | |||
7171 | IsSpecialDiscardedValue(BCO->getFalseExpr()); | |||
7172 | } | |||
7173 | ||||
7174 | // Objective-C++ extensions to the rule. | |||
7175 | if (isa<PseudoObjectExpr>(E) || isa<ObjCIvarRefExpr>(E)) | |||
7176 | return true; | |||
7177 | ||||
7178 | return false; | |||
7179 | } | |||
7180 | ||||
7181 | /// Perform the conversions required for an expression used in a | |||
7182 | /// context that ignores the result. | |||
7183 | ExprResult Sema::IgnoredValueConversions(Expr *E) { | |||
7184 | if (E->hasPlaceholderType()) { | |||
7185 | ExprResult result = CheckPlaceholderExpr(E); | |||
7186 | if (result.isInvalid()) return E; | |||
7187 | E = result.get(); | |||
7188 | } | |||
7189 | ||||
7190 | // C99 6.3.2.1: | |||
7191 | // [Except in specific positions,] an lvalue that does not have | |||
7192 | // array type is converted to the value stored in the | |||
7193 | // designated object (and is no longer an lvalue). | |||
7194 | if (E->isRValue()) { | |||
7195 | // In C, function designators (i.e. expressions of function type) | |||
7196 | // are r-values, but we still want to do function-to-pointer decay | |||
7197 | // on them. This is both technically correct and convenient for | |||
7198 | // some clients. | |||
7199 | if (!getLangOpts().CPlusPlus && E->getType()->isFunctionType()) | |||
7200 | return DefaultFunctionArrayConversion(E); | |||
7201 | ||||
7202 | return E; | |||
7203 | } | |||
7204 | ||||
7205 | if (getLangOpts().CPlusPlus) { | |||
7206 | // The C++11 standard defines the notion of a discarded-value expression; | |||
7207 | // normally, we don't need to do anything to handle it, but if it is a | |||
7208 | // volatile lvalue with a special form, we perform an lvalue-to-rvalue | |||
7209 | // conversion. | |||
7210 | if (getLangOpts().CPlusPlus11 && E->isGLValue() && | |||
7211 | E->getType().isVolatileQualified() && | |||
7212 | IsSpecialDiscardedValue(E)) { | |||
7213 | ExprResult Res = DefaultLvalueConversion(E); | |||
7214 | if (Res.isInvalid()) | |||
7215 | return E; | |||
7216 | E = Res.get(); | |||
7217 | } | |||
7218 | ||||
7219 | // C++1z: | |||
7220 | // If the expression is a prvalue after this optional conversion, the | |||
7221 | // temporary materialization conversion is applied. | |||
7222 | // | |||
7223 | // We skip this step: IR generation is able to synthesize the storage for | |||
7224 | // itself in the aggregate case, and adding the extra node to the AST is | |||
7225 | // just clutter. | |||
7226 | // FIXME: We don't emit lifetime markers for the temporaries due to this. | |||
7227 | // FIXME: Do any other AST consumers care about this? | |||
7228 | return E; | |||
7229 | } | |||
7230 | ||||
7231 | // GCC seems to also exclude expressions of incomplete enum type. | |||
7232 | if (const EnumType *T = E->getType()->getAs<EnumType>()) { | |||
7233 | if (!T->getDecl()->isComplete()) { | |||
7234 | // FIXME: stupid workaround for a codegen bug! | |||
7235 | E = ImpCastExprToType(E, Context.VoidTy, CK_ToVoid).get(); | |||
7236 | return E; | |||
7237 | } | |||
7238 | } | |||
7239 | ||||
7240 | ExprResult Res = DefaultFunctionArrayLvalueConversion(E); | |||
7241 | if (Res.isInvalid()) | |||
7242 | return E; | |||
7243 | E = Res.get(); | |||
7244 | ||||
7245 | if (!E->getType()->isVoidType()) | |||
7246 | RequireCompleteType(E->getExprLoc(), E->getType(), | |||
7247 | diag::err_incomplete_type); | |||
7248 | return E; | |||
7249 | } | |||
7250 | ||||
7251 | // If we can unambiguously determine whether Var can never be used | |||
7252 | // in a constant expression, return true. | |||
7253 | // - if the variable and its initializer are non-dependent, then | |||
7254 | // we can unambiguously check if the variable is a constant expression. | |||
7255 | // - if the initializer is not value dependent - we can determine whether | |||
7256 | // it can be used to initialize a constant expression. If Init can not | |||
7257 | // be used to initialize a constant expression we conclude that Var can | |||
7258 | // never be a constant expression. | |||
7259 | // - FXIME: if the initializer is dependent, we can still do some analysis and | |||
7260 | // identify certain cases unambiguously as non-const by using a Visitor: | |||
7261 | // - such as those that involve odr-use of a ParmVarDecl, involve a new | |||
7262 | // delete, lambda-expr, dynamic-cast, reinterpret-cast etc... | |||
7263 | static inline bool VariableCanNeverBeAConstantExpression(VarDecl *Var, | |||
7264 | ASTContext &Context) { | |||
7265 | if (isa<ParmVarDecl>(Var)) return true; | |||
7266 | const VarDecl *DefVD = nullptr; | |||
7267 | ||||
7268 | // If there is no initializer - this can not be a constant expression. | |||
7269 | if (!Var->getAnyInitializer(DefVD)) return true; | |||
7270 | assert(DefVD)(static_cast <bool> (DefVD) ? void (0) : __assert_fail ( "DefVD", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7270, __extension__ __PRETTY_FUNCTION__)); | |||
7271 | if (DefVD->isWeak()) return false; | |||
7272 | EvaluatedStmt *Eval = DefVD->ensureEvaluatedStmt(); | |||
7273 | ||||
7274 | Expr *Init = cast<Expr>(Eval->Value); | |||
7275 | ||||
7276 | if (Var->getType()->isDependentType() || Init->isValueDependent()) { | |||
7277 | // FIXME: Teach the constant evaluator to deal with the non-dependent parts | |||
7278 | // of value-dependent expressions, and use it here to determine whether the | |||
7279 | // initializer is a potential constant expression. | |||
7280 | return false; | |||
7281 | } | |||
7282 | ||||
7283 | return !IsVariableAConstantExpression(Var, Context); | |||
7284 | } | |||
7285 | ||||
7286 | /// \brief Check if the current lambda has any potential captures | |||
7287 | /// that must be captured by any of its enclosing lambdas that are ready to | |||
7288 | /// capture. If there is a lambda that can capture a nested | |||
7289 | /// potential-capture, go ahead and do so. Also, check to see if any | |||
7290 | /// variables are uncaptureable or do not involve an odr-use so do not | |||
7291 | /// need to be captured. | |||
7292 | ||||
7293 | static void CheckIfAnyEnclosingLambdasMustCaptureAnyPotentialCaptures( | |||
7294 | Expr *const FE, LambdaScopeInfo *const CurrentLSI, Sema &S) { | |||
7295 | ||||
7296 | assert(!S.isUnevaluatedContext())(static_cast <bool> (!S.isUnevaluatedContext()) ? void ( 0) : __assert_fail ("!S.isUnevaluatedContext()", "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7296, __extension__ __PRETTY_FUNCTION__)); | |||
7297 | assert(S.CurContext->isDependentContext())(static_cast <bool> (S.CurContext->isDependentContext ()) ? void (0) : __assert_fail ("S.CurContext->isDependentContext()" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7297, __extension__ __PRETTY_FUNCTION__)); | |||
7298 | #ifndef NDEBUG | |||
7299 | DeclContext *DC = S.CurContext; | |||
7300 | while (DC && isa<CapturedDecl>(DC)) | |||
7301 | DC = DC->getParent(); | |||
7302 | assert((static_cast <bool> (CurrentLSI->CallOperator == DC && "The current call operator must be synchronized with Sema's CurContext" ) ? void (0) : __assert_fail ("CurrentLSI->CallOperator == DC && \"The current call operator must be synchronized with Sema's CurContext\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7304, __extension__ __PRETTY_FUNCTION__)) | |||
7303 | CurrentLSI->CallOperator == DC &&(static_cast <bool> (CurrentLSI->CallOperator == DC && "The current call operator must be synchronized with Sema's CurContext" ) ? void (0) : __assert_fail ("CurrentLSI->CallOperator == DC && \"The current call operator must be synchronized with Sema's CurContext\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7304, __extension__ __PRETTY_FUNCTION__)) | |||
7304 | "The current call operator must be synchronized with Sema's CurContext")(static_cast <bool> (CurrentLSI->CallOperator == DC && "The current call operator must be synchronized with Sema's CurContext" ) ? void (0) : __assert_fail ("CurrentLSI->CallOperator == DC && \"The current call operator must be synchronized with Sema's CurContext\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7304, __extension__ __PRETTY_FUNCTION__)); | |||
7305 | #endif // NDEBUG | |||
7306 | ||||
7307 | const bool IsFullExprInstantiationDependent = FE->isInstantiationDependent(); | |||
7308 | ||||
7309 | // All the potentially captureable variables in the current nested | |||
7310 | // lambda (within a generic outer lambda), must be captured by an | |||
7311 | // outer lambda that is enclosed within a non-dependent context. | |||
7312 | const unsigned NumPotentialCaptures = | |||
7313 | CurrentLSI->getNumPotentialVariableCaptures(); | |||
7314 | for (unsigned I = 0; I != NumPotentialCaptures; ++I) { | |||
7315 | Expr *VarExpr = nullptr; | |||
7316 | VarDecl *Var = nullptr; | |||
7317 | CurrentLSI->getPotentialVariableCapture(I, Var, VarExpr); | |||
7318 | // If the variable is clearly identified as non-odr-used and the full | |||
7319 | // expression is not instantiation dependent, only then do we not | |||
7320 | // need to check enclosing lambda's for speculative captures. | |||
7321 | // For e.g.: | |||
7322 | // Even though 'x' is not odr-used, it should be captured. | |||
7323 | // int test() { | |||
7324 | // const int x = 10; | |||
7325 | // auto L = [=](auto a) { | |||
7326 | // (void) +x + a; | |||
7327 | // }; | |||
7328 | // } | |||
7329 | if (CurrentLSI->isVariableExprMarkedAsNonODRUsed(VarExpr) && | |||
7330 | !IsFullExprInstantiationDependent) | |||
7331 | continue; | |||
7332 | ||||
7333 | // If we have a capture-capable lambda for the variable, go ahead and | |||
7334 | // capture the variable in that lambda (and all its enclosing lambdas). | |||
7335 | if (const Optional<unsigned> Index = | |||
7336 | getStackIndexOfNearestEnclosingCaptureCapableLambda( | |||
7337 | S.FunctionScopes, Var, S)) { | |||
7338 | const unsigned FunctionScopeIndexOfCapturableLambda = Index.getValue(); | |||
7339 | MarkVarDeclODRUsed(Var, VarExpr->getExprLoc(), S, | |||
7340 | &FunctionScopeIndexOfCapturableLambda); | |||
7341 | } | |||
7342 | const bool IsVarNeverAConstantExpression = | |||
7343 | VariableCanNeverBeAConstantExpression(Var, S.Context); | |||
7344 | if (!IsFullExprInstantiationDependent || IsVarNeverAConstantExpression) { | |||
7345 | // This full expression is not instantiation dependent or the variable | |||
7346 | // can not be used in a constant expression - which means | |||
7347 | // this variable must be odr-used here, so diagnose a | |||
7348 | // capture violation early, if the variable is un-captureable. | |||
7349 | // This is purely for diagnosing errors early. Otherwise, this | |||
7350 | // error would get diagnosed when the lambda becomes capture ready. | |||
7351 | QualType CaptureType, DeclRefType; | |||
7352 | SourceLocation ExprLoc = VarExpr->getExprLoc(); | |||
7353 | if (S.tryCaptureVariable(Var, ExprLoc, S.TryCapture_Implicit, | |||
7354 | /*EllipsisLoc*/ SourceLocation(), | |||
7355 | /*BuildAndDiagnose*/false, CaptureType, | |||
7356 | DeclRefType, nullptr)) { | |||
7357 | // We will never be able to capture this variable, and we need | |||
7358 | // to be able to in any and all instantiations, so diagnose it. | |||
7359 | S.tryCaptureVariable(Var, ExprLoc, S.TryCapture_Implicit, | |||
7360 | /*EllipsisLoc*/ SourceLocation(), | |||
7361 | /*BuildAndDiagnose*/true, CaptureType, | |||
7362 | DeclRefType, nullptr); | |||
7363 | } | |||
7364 | } | |||
7365 | } | |||
7366 | ||||
7367 | // Check if 'this' needs to be captured. | |||
7368 | if (CurrentLSI->hasPotentialThisCapture()) { | |||
7369 | // If we have a capture-capable lambda for 'this', go ahead and capture | |||
7370 | // 'this' in that lambda (and all its enclosing lambdas). | |||
7371 | if (const Optional<unsigned> Index = | |||
7372 | getStackIndexOfNearestEnclosingCaptureCapableLambda( | |||
7373 | S.FunctionScopes, /*0 is 'this'*/ nullptr, S)) { | |||
7374 | const unsigned FunctionScopeIndexOfCapturableLambda = Index.getValue(); | |||
7375 | S.CheckCXXThisCapture(CurrentLSI->PotentialThisCaptureLocation, | |||
7376 | /*Explicit*/ false, /*BuildAndDiagnose*/ true, | |||
7377 | &FunctionScopeIndexOfCapturableLambda); | |||
7378 | } | |||
7379 | } | |||
7380 | ||||
7381 | // Reset all the potential captures at the end of each full-expression. | |||
7382 | CurrentLSI->clearPotentialCaptures(); | |||
7383 | } | |||
7384 | ||||
7385 | static ExprResult attemptRecovery(Sema &SemaRef, | |||
7386 | const TypoCorrectionConsumer &Consumer, | |||
7387 | const TypoCorrection &TC) { | |||
7388 | LookupResult R(SemaRef, Consumer.getLookupResult().getLookupNameInfo(), | |||
7389 | Consumer.getLookupResult().getLookupKind()); | |||
7390 | const CXXScopeSpec *SS = Consumer.getSS(); | |||
7391 | CXXScopeSpec NewSS; | |||
7392 | ||||
7393 | // Use an approprate CXXScopeSpec for building the expr. | |||
7394 | if (auto *NNS = TC.getCorrectionSpecifier()) | |||
7395 | NewSS.MakeTrivial(SemaRef.Context, NNS, TC.getCorrectionRange()); | |||
7396 | else if (SS && !TC.WillReplaceSpecifier()) | |||
7397 | NewSS = *SS; | |||
7398 | ||||
7399 | if (auto *ND = TC.getFoundDecl()) { | |||
7400 | R.setLookupName(ND->getDeclName()); | |||
7401 | R.addDecl(ND); | |||
7402 | if (ND->isCXXClassMember()) { | |||
7403 | // Figure out the correct naming class to add to the LookupResult. | |||
7404 | CXXRecordDecl *Record = nullptr; | |||
7405 | if (auto *NNS = TC.getCorrectionSpecifier()) | |||
7406 | Record = NNS->getAsType()->getAsCXXRecordDecl(); | |||
7407 | if (!Record) | |||
7408 | Record = | |||
7409 | dyn_cast<CXXRecordDecl>(ND->getDeclContext()->getRedeclContext()); | |||
7410 | if (Record) | |||
7411 | R.setNamingClass(Record); | |||
7412 | ||||
7413 | // Detect and handle the case where the decl might be an implicit | |||
7414 | // member. | |||
7415 | bool MightBeImplicitMember; | |||
7416 | if (!Consumer.isAddressOfOperand()) | |||
7417 | MightBeImplicitMember = true; | |||
7418 | else if (!NewSS.isEmpty()) | |||
7419 | MightBeImplicitMember = false; | |||
7420 | else if (R.isOverloadedResult()) | |||
7421 | MightBeImplicitMember = false; | |||
7422 | else if (R.isUnresolvableResult()) | |||
7423 | MightBeImplicitMember = true; | |||
7424 | else | |||
7425 | MightBeImplicitMember = isa<FieldDecl>(ND) || | |||
7426 | isa<IndirectFieldDecl>(ND) || | |||
7427 | isa<MSPropertyDecl>(ND); | |||
7428 | ||||
7429 | if (MightBeImplicitMember) | |||
7430 | return SemaRef.BuildPossibleImplicitMemberExpr( | |||
7431 | NewSS, /*TemplateKWLoc*/ SourceLocation(), R, | |||
7432 | /*TemplateArgs*/ nullptr, /*S*/ nullptr); | |||
7433 | } else if (auto *Ivar = dyn_cast<ObjCIvarDecl>(ND)) { | |||
7434 | return SemaRef.LookupInObjCMethod(R, Consumer.getScope(), | |||
7435 | Ivar->getIdentifier()); | |||
7436 | } | |||
7437 | } | |||
7438 | ||||
7439 | return SemaRef.BuildDeclarationNameExpr(NewSS, R, /*NeedsADL*/ false, | |||
7440 | /*AcceptInvalidDecl*/ true); | |||
7441 | } | |||
7442 | ||||
7443 | namespace { | |||
7444 | class FindTypoExprs : public RecursiveASTVisitor<FindTypoExprs> { | |||
7445 | llvm::SmallSetVector<TypoExpr *, 2> &TypoExprs; | |||
7446 | ||||
7447 | public: | |||
7448 | explicit FindTypoExprs(llvm::SmallSetVector<TypoExpr *, 2> &TypoExprs) | |||
7449 | : TypoExprs(TypoExprs) {} | |||
7450 | bool VisitTypoExpr(TypoExpr *TE) { | |||
7451 | TypoExprs.insert(TE); | |||
7452 | return true; | |||
7453 | } | |||
7454 | }; | |||
7455 | ||||
7456 | class TransformTypos : public TreeTransform<TransformTypos> { | |||
7457 | typedef TreeTransform<TransformTypos> BaseTransform; | |||
7458 | ||||
7459 | VarDecl *InitDecl; // A decl to avoid as a correction because it is in the | |||
7460 | // process of being initialized. | |||
7461 | llvm::function_ref<ExprResult(Expr *)> ExprFilter; | |||
7462 | llvm::SmallSetVector<TypoExpr *, 2> TypoExprs, AmbiguousTypoExprs; | |||
7463 | llvm::SmallDenseMap<TypoExpr *, ExprResult, 2> TransformCache; | |||
7464 | llvm::SmallDenseMap<OverloadExpr *, Expr *, 4> OverloadResolution; | |||
7465 | ||||
7466 | /// \brief Emit diagnostics for all of the TypoExprs encountered. | |||
7467 | /// If the TypoExprs were successfully corrected, then the diagnostics should | |||
7468 | /// suggest the corrections. Otherwise the diagnostics will not suggest | |||
7469 | /// anything (having been passed an empty TypoCorrection). | |||
7470 | void EmitAllDiagnostics() { | |||
7471 | for (TypoExpr *TE : TypoExprs) { | |||
7472 | auto &State = SemaRef.getTypoExprState(TE); | |||
7473 | if (State.DiagHandler) { | |||
7474 | TypoCorrection TC = State.Consumer->getCurrentCorrection(); | |||
7475 | ExprResult Replacement = TransformCache[TE]; | |||
7476 | ||||
7477 | // Extract the NamedDecl from the transformed TypoExpr and add it to the | |||
7478 | // TypoCorrection, replacing the existing decls. This ensures the right | |||
7479 | // NamedDecl is used in diagnostics e.g. in the case where overload | |||
7480 | // resolution was used to select one from several possible decls that | |||
7481 | // had been stored in the TypoCorrection. | |||
7482 | if (auto *ND = getDeclFromExpr( | |||
7483 | Replacement.isInvalid() ? nullptr : Replacement.get())) | |||
7484 | TC.setCorrectionDecl(ND); | |||
7485 | ||||
7486 | State.DiagHandler(TC); | |||
7487 | } | |||
7488 | SemaRef.clearDelayedTypo(TE); | |||
7489 | } | |||
7490 | } | |||
7491 | ||||
7492 | /// \brief If corrections for the first TypoExpr have been exhausted for a | |||
7493 | /// given combination of the other TypoExprs, retry those corrections against | |||
7494 | /// the next combination of substitutions for the other TypoExprs by advancing | |||
7495 | /// to the next potential correction of the second TypoExpr. For the second | |||
7496 | /// and subsequent TypoExprs, if its stream of corrections has been exhausted, | |||
7497 | /// the stream is reset and the next TypoExpr's stream is advanced by one (a | |||
7498 | /// TypoExpr's correction stream is advanced by removing the TypoExpr from the | |||
7499 | /// TransformCache). Returns true if there is still any untried combinations | |||
7500 | /// of corrections. | |||
7501 | bool CheckAndAdvanceTypoExprCorrectionStreams() { | |||
7502 | for (auto TE : TypoExprs) { | |||
7503 | auto &State = SemaRef.getTypoExprState(TE); | |||
7504 | TransformCache.erase(TE); | |||
7505 | if (!State.Consumer->finished()) | |||
7506 | return true; | |||
7507 | State.Consumer->resetCorrectionStream(); | |||
7508 | } | |||
7509 | return false; | |||
7510 | } | |||
7511 | ||||
7512 | NamedDecl *getDeclFromExpr(Expr *E) { | |||
7513 | if (auto *OE = dyn_cast_or_null<OverloadExpr>(E)) | |||
7514 | E = OverloadResolution[OE]; | |||
7515 | ||||
7516 | if (!E) | |||
7517 | return nullptr; | |||
7518 | if (auto *DRE = dyn_cast<DeclRefExpr>(E)) | |||
7519 | return DRE->getFoundDecl(); | |||
7520 | if (auto *ME = dyn_cast<MemberExpr>(E)) | |||
7521 | return ME->getFoundDecl(); | |||
7522 | // FIXME: Add any other expr types that could be be seen by the delayed typo | |||
7523 | // correction TreeTransform for which the corresponding TypoCorrection could | |||
7524 | // contain multiple decls. | |||
7525 | return nullptr; | |||
7526 | } | |||
7527 | ||||
7528 | ExprResult TryTransform(Expr *E) { | |||
7529 | Sema::SFINAETrap Trap(SemaRef); | |||
7530 | ExprResult Res = TransformExpr(E); | |||
7531 | if (Trap.hasErrorOccurred() || Res.isInvalid()) | |||
7532 | return ExprError(); | |||
7533 | ||||
7534 | return ExprFilter(Res.get()); | |||
7535 | } | |||
7536 | ||||
7537 | public: | |||
7538 | TransformTypos(Sema &SemaRef, VarDecl *InitDecl, llvm::function_ref<ExprResult(Expr *)> Filter) | |||
7539 | : BaseTransform(SemaRef), InitDecl(InitDecl), ExprFilter(Filter) {} | |||
7540 | ||||
7541 | ExprResult RebuildCallExpr(Expr *Callee, SourceLocation LParenLoc, | |||
7542 | MultiExprArg Args, | |||
7543 | SourceLocation RParenLoc, | |||
7544 | Expr *ExecConfig = nullptr) { | |||
7545 | auto Result = BaseTransform::RebuildCallExpr(Callee, LParenLoc, Args, | |||
7546 | RParenLoc, ExecConfig); | |||
7547 | if (auto *OE = dyn_cast<OverloadExpr>(Callee)) { | |||
7548 | if (Result.isUsable()) { | |||
7549 | Expr *ResultCall = Result.get(); | |||
7550 | if (auto *BE = dyn_cast<CXXBindTemporaryExpr>(ResultCall)) | |||
7551 | ResultCall = BE->getSubExpr(); | |||
7552 | if (auto *CE = dyn_cast<CallExpr>(ResultCall)) | |||
7553 | OverloadResolution[OE] = CE->getCallee(); | |||
7554 | } | |||
7555 | } | |||
7556 | return Result; | |||
7557 | } | |||
7558 | ||||
7559 | ExprResult TransformLambdaExpr(LambdaExpr *E) { return Owned(E); } | |||
7560 | ||||
7561 | ExprResult TransformBlockExpr(BlockExpr *E) { return Owned(E); } | |||
7562 | ||||
7563 | ExprResult Transform(Expr *E) { | |||
7564 | ExprResult Res; | |||
7565 | while (true) { | |||
7566 | Res = TryTransform(E); | |||
7567 | ||||
7568 | // Exit if either the transform was valid or if there were no TypoExprs | |||
7569 | // to transform that still have any untried correction candidates.. | |||
7570 | if (!Res.isInvalid() || | |||
7571 | !CheckAndAdvanceTypoExprCorrectionStreams()) | |||
7572 | break; | |||
7573 | } | |||
7574 | ||||
7575 | // Ensure none of the TypoExprs have multiple typo correction candidates | |||
7576 | // with the same edit length that pass all the checks and filters. | |||
7577 | // TODO: Properly handle various permutations of possible corrections when | |||
7578 | // there is more than one potentially ambiguous typo correction. | |||
7579 | // Also, disable typo correction while attempting the transform when | |||
7580 | // handling potentially ambiguous typo corrections as any new TypoExprs will | |||
7581 | // have been introduced by the application of one of the correction | |||
7582 | // candidates and add little to no value if corrected. | |||
7583 | SemaRef.DisableTypoCorrection = true; | |||
7584 | while (!AmbiguousTypoExprs.empty()) { | |||
7585 | auto TE = AmbiguousTypoExprs.back(); | |||
7586 | auto Cached = TransformCache[TE]; | |||
7587 | auto &State = SemaRef.getTypoExprState(TE); | |||
7588 | State.Consumer->saveCurrentPosition(); | |||
7589 | TransformCache.erase(TE); | |||
7590 | if (!TryTransform(E).isInvalid()) { | |||
7591 | State.Consumer->resetCorrectionStream(); | |||
7592 | TransformCache.erase(TE); | |||
7593 | Res = ExprError(); | |||
7594 | break; | |||
7595 | } | |||
7596 | AmbiguousTypoExprs.remove(TE); | |||
7597 | State.Consumer->restoreSavedPosition(); | |||
7598 | TransformCache[TE] = Cached; | |||
7599 | } | |||
7600 | SemaRef.DisableTypoCorrection = false; | |||
7601 | ||||
7602 | // Ensure that all of the TypoExprs within the current Expr have been found. | |||
7603 | if (!Res.isUsable()) | |||
7604 | FindTypoExprs(TypoExprs).TraverseStmt(E); | |||
7605 | ||||
7606 | EmitAllDiagnostics(); | |||
7607 | ||||
7608 | return Res; | |||
7609 | } | |||
7610 | ||||
7611 | ExprResult TransformTypoExpr(TypoExpr *E) { | |||
7612 | // If the TypoExpr hasn't been seen before, record it. Otherwise, return the | |||
7613 | // cached transformation result if there is one and the TypoExpr isn't the | |||
7614 | // first one that was encountered. | |||
7615 | auto &CacheEntry = TransformCache[E]; | |||
7616 | if (!TypoExprs.insert(E) && !CacheEntry.isUnset()) { | |||
7617 | return CacheEntry; | |||
7618 | } | |||
7619 | ||||
7620 | auto &State = SemaRef.getTypoExprState(E); | |||
7621 | assert(State.Consumer && "Cannot transform a cleared TypoExpr")(static_cast <bool> (State.Consumer && "Cannot transform a cleared TypoExpr" ) ? void (0) : __assert_fail ("State.Consumer && \"Cannot transform a cleared TypoExpr\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7621, __extension__ __PRETTY_FUNCTION__)); | |||
7622 | ||||
7623 | // For the first TypoExpr and an uncached TypoExpr, find the next likely | |||
7624 | // typo correction and return it. | |||
7625 | while (TypoCorrection TC = State.Consumer->getNextCorrection()) { | |||
7626 | if (InitDecl && TC.getFoundDecl() == InitDecl) | |||
7627 | continue; | |||
7628 | // FIXME: If we would typo-correct to an invalid declaration, it's | |||
7629 | // probably best to just suppress all errors from this typo correction. | |||
7630 | ExprResult NE = State.RecoveryHandler ? | |||
7631 | State.RecoveryHandler(SemaRef, E, TC) : | |||
7632 | attemptRecovery(SemaRef, *State.Consumer, TC); | |||
7633 | if (!NE.isInvalid()) { | |||
7634 | // Check whether there may be a second viable correction with the same | |||
7635 | // edit distance; if so, remember this TypoExpr may have an ambiguous | |||
7636 | // correction so it can be more thoroughly vetted later. | |||
7637 | TypoCorrection Next; | |||
7638 | if ((Next = State.Consumer->peekNextCorrection()) && | |||
7639 | Next.getEditDistance(false) == TC.getEditDistance(false)) { | |||
7640 | AmbiguousTypoExprs.insert(E); | |||
7641 | } else { | |||
7642 | AmbiguousTypoExprs.remove(E); | |||
7643 | } | |||
7644 | assert(!NE.isUnset() &&(static_cast <bool> (!NE.isUnset() && "Typo was transformed into a valid-but-null ExprResult" ) ? void (0) : __assert_fail ("!NE.isUnset() && \"Typo was transformed into a valid-but-null ExprResult\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7645, __extension__ __PRETTY_FUNCTION__)) | |||
7645 | "Typo was transformed into a valid-but-null ExprResult")(static_cast <bool> (!NE.isUnset() && "Typo was transformed into a valid-but-null ExprResult" ) ? void (0) : __assert_fail ("!NE.isUnset() && \"Typo was transformed into a valid-but-null ExprResult\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7645, __extension__ __PRETTY_FUNCTION__)); | |||
7646 | return CacheEntry = NE; | |||
7647 | } | |||
7648 | } | |||
7649 | return CacheEntry = ExprError(); | |||
7650 | } | |||
7651 | }; | |||
7652 | } | |||
7653 | ||||
7654 | ExprResult | |||
7655 | Sema::CorrectDelayedTyposInExpr(Expr *E, VarDecl *InitDecl, | |||
7656 | llvm::function_ref<ExprResult(Expr *)> Filter) { | |||
7657 | // If the current evaluation context indicates there are uncorrected typos | |||
7658 | // and the current expression isn't guaranteed to not have typos, try to | |||
7659 | // resolve any TypoExpr nodes that might be in the expression. | |||
7660 | if (E && !ExprEvalContexts.empty() && ExprEvalContexts.back().NumTypos && | |||
7661 | (E->isTypeDependent() || E->isValueDependent() || | |||
7662 | E->isInstantiationDependent())) { | |||
7663 | auto TyposInContext = ExprEvalContexts.back().NumTypos; | |||
7664 | assert(TyposInContext < ~0U && "Recursive call of CorrectDelayedTyposInExpr")(static_cast <bool> (TyposInContext < ~0U && "Recursive call of CorrectDelayedTyposInExpr") ? void (0) : __assert_fail ("TyposInContext < ~0U && \"Recursive call of CorrectDelayedTyposInExpr\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7664, __extension__ __PRETTY_FUNCTION__)); | |||
7665 | ExprEvalContexts.back().NumTypos = ~0U; | |||
7666 | auto TyposResolved = DelayedTypos.size(); | |||
7667 | auto Result = TransformTypos(*this, InitDecl, Filter).Transform(E); | |||
7668 | ExprEvalContexts.back().NumTypos = TyposInContext; | |||
7669 | TyposResolved -= DelayedTypos.size(); | |||
7670 | if (Result.isInvalid() || Result.get() != E) { | |||
7671 | ExprEvalContexts.back().NumTypos -= TyposResolved; | |||
7672 | return Result; | |||
7673 | } | |||
7674 | assert(TyposResolved == 0 && "Corrected typo but got same Expr back?")(static_cast <bool> (TyposResolved == 0 && "Corrected typo but got same Expr back?" ) ? void (0) : __assert_fail ("TyposResolved == 0 && \"Corrected typo but got same Expr back?\"" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7674, __extension__ __PRETTY_FUNCTION__)); | |||
7675 | } | |||
7676 | return E; | |||
7677 | } | |||
7678 | ||||
7679 | ExprResult Sema::ActOnFinishFullExpr(Expr *FE, SourceLocation CC, | |||
7680 | bool DiscardedValue, | |||
7681 | bool IsConstexpr, | |||
7682 | bool IsLambdaInitCaptureInitializer) { | |||
7683 | ExprResult FullExpr = FE; | |||
7684 | ||||
7685 | if (!FullExpr.get()) | |||
7686 | return ExprError(); | |||
7687 | ||||
7688 | // If we are an init-expression in a lambdas init-capture, we should not | |||
7689 | // diagnose an unexpanded pack now (will be diagnosed once lambda-expr | |||
7690 | // containing full-expression is done). | |||
7691 | // template<class ... Ts> void test(Ts ... t) { | |||
7692 | // test([&a(t)]() { <-- (t) is an init-expr that shouldn't be diagnosed now. | |||
7693 | // return a; | |||
7694 | // }() ...); | |||
7695 | // } | |||
7696 | // FIXME: This is a hack. It would be better if we pushed the lambda scope | |||
7697 | // when we parse the lambda introducer, and teach capturing (but not | |||
7698 | // unexpanded pack detection) to walk over LambdaScopeInfos which don't have a | |||
7699 | // corresponding class yet (that is, have LambdaScopeInfo either represent a | |||
7700 | // lambda where we've entered the introducer but not the body, or represent a | |||
7701 | // lambda where we've entered the body, depending on where the | |||
7702 | // parser/instantiation has got to). | |||
7703 | if (!IsLambdaInitCaptureInitializer && | |||
7704 | DiagnoseUnexpandedParameterPack(FullExpr.get())) | |||
7705 | return ExprError(); | |||
7706 | ||||
7707 | // Top-level expressions default to 'id' when we're in a debugger. | |||
7708 | if (DiscardedValue && getLangOpts().DebuggerCastResultToId && | |||
7709 | FullExpr.get()->getType() == Context.UnknownAnyTy) { | |||
7710 | FullExpr = forceUnknownAnyToType(FullExpr.get(), Context.getObjCIdType()); | |||
7711 | if (FullExpr.isInvalid()) | |||
7712 | return ExprError(); | |||
7713 | } | |||
7714 | ||||
7715 | if (DiscardedValue) { | |||
7716 | FullExpr = CheckPlaceholderExpr(FullExpr.get()); | |||
7717 | if (FullExpr.isInvalid()) | |||
7718 | return ExprError(); | |||
7719 | ||||
7720 | FullExpr = IgnoredValueConversions(FullExpr.get()); | |||
7721 | if (FullExpr.isInvalid()) | |||
7722 | return ExprError(); | |||
7723 | } | |||
7724 | ||||
7725 | FullExpr = CorrectDelayedTyposInExpr(FullExpr.get()); | |||
7726 | if (FullExpr.isInvalid()) | |||
7727 | return ExprError(); | |||
7728 | ||||
7729 | CheckCompletedExpr(FullExpr.get(), CC, IsConstexpr); | |||
7730 | ||||
7731 | // At the end of this full expression (which could be a deeply nested | |||
7732 | // lambda), if there is a potential capture within the nested lambda, | |||
7733 | // have the outer capture-able lambda try and capture it. | |||
7734 | // Consider the following code: | |||
7735 | // void f(int, int); | |||
7736 | // void f(const int&, double); | |||
7737 | // void foo() { | |||
7738 | // const int x = 10, y = 20; | |||
7739 | // auto L = [=](auto a) { | |||
7740 | // auto M = [=](auto b) { | |||
7741 | // f(x, b); <-- requires x to be captured by L and M | |||
7742 | // f(y, a); <-- requires y to be captured by L, but not all Ms | |||
7743 | // }; | |||
7744 | // }; | |||
7745 | // } | |||
7746 | ||||
7747 | // FIXME: Also consider what happens for something like this that involves | |||
7748 | // the gnu-extension statement-expressions or even lambda-init-captures: | |||
7749 | // void f() { | |||
7750 | // const int n = 0; | |||
7751 | // auto L = [&](auto a) { | |||
7752 | // +n + ({ 0; a; }); | |||
7753 | // }; | |||
7754 | // } | |||
7755 | // | |||
7756 | // Here, we see +n, and then the full-expression 0; ends, so we don't | |||
7757 | // capture n (and instead remove it from our list of potential captures), | |||
7758 | // and then the full-expression +n + ({ 0; }); ends, but it's too late | |||
7759 | // for us to see that we need to capture n after all. | |||
7760 | ||||
7761 | LambdaScopeInfo *const CurrentLSI = | |||
7762 | getCurLambda(/*IgnoreCapturedRegions=*/true); | |||
7763 | // FIXME: PR 17877 showed that getCurLambda() can return a valid pointer | |||
7764 | // even if CurContext is not a lambda call operator. Refer to that Bug Report | |||
7765 | // for an example of the code that might cause this asynchrony. | |||
7766 | // By ensuring we are in the context of a lambda's call operator | |||
7767 | // we can fix the bug (we only need to check whether we need to capture | |||
7768 | // if we are within a lambda's body); but per the comments in that | |||
7769 | // PR, a proper fix would entail : | |||
7770 | // "Alternative suggestion: | |||
7771 | // - Add to Sema an integer holding the smallest (outermost) scope | |||
7772 | // index that we are *lexically* within, and save/restore/set to | |||
7773 | // FunctionScopes.size() in InstantiatingTemplate's | |||
7774 | // constructor/destructor. | |||
7775 | // - Teach the handful of places that iterate over FunctionScopes to | |||
7776 | // stop at the outermost enclosing lexical scope." | |||
7777 | DeclContext *DC = CurContext; | |||
7778 | while (DC && isa<CapturedDecl>(DC)) | |||
7779 | DC = DC->getParent(); | |||
7780 | const bool IsInLambdaDeclContext = isLambdaCallOperator(DC); | |||
7781 | if (IsInLambdaDeclContext && CurrentLSI && | |||
7782 | CurrentLSI->hasPotentialCaptures() && !FullExpr.isInvalid()) | |||
7783 | CheckIfAnyEnclosingLambdasMustCaptureAnyPotentialCaptures(FE, CurrentLSI, | |||
7784 | *this); | |||
7785 | return MaybeCreateExprWithCleanups(FullExpr); | |||
7786 | } | |||
7787 | ||||
7788 | StmtResult Sema::ActOnFinishFullStmt(Stmt *FullStmt) { | |||
7789 | if (!FullStmt) return StmtError(); | |||
7790 | ||||
7791 | return MaybeCreateStmtWithCleanups(FullStmt); | |||
7792 | } | |||
7793 | ||||
7794 | Sema::IfExistsResult | |||
7795 | Sema::CheckMicrosoftIfExistsSymbol(Scope *S, | |||
7796 | CXXScopeSpec &SS, | |||
7797 | const DeclarationNameInfo &TargetNameInfo) { | |||
7798 | DeclarationName TargetName = TargetNameInfo.getName(); | |||
7799 | if (!TargetName) | |||
7800 | return IER_DoesNotExist; | |||
7801 | ||||
7802 | // If the name itself is dependent, then the result is dependent. | |||
7803 | if (TargetName.isDependentName()) | |||
7804 | return IER_Dependent; | |||
7805 | ||||
7806 | // Do the redeclaration lookup in the current scope. | |||
7807 | LookupResult R(*this, TargetNameInfo, Sema::LookupAnyName, | |||
7808 | Sema::NotForRedeclaration); | |||
7809 | LookupParsedName(R, S, &SS); | |||
7810 | R.suppressDiagnostics(); | |||
7811 | ||||
7812 | switch (R.getResultKind()) { | |||
7813 | case LookupResult::Found: | |||
7814 | case LookupResult::FoundOverloaded: | |||
7815 | case LookupResult::FoundUnresolvedValue: | |||
7816 | case LookupResult::Ambiguous: | |||
7817 | return IER_Exists; | |||
7818 | ||||
7819 | case LookupResult::NotFound: | |||
7820 | return IER_DoesNotExist; | |||
7821 | ||||
7822 | case LookupResult::NotFoundInCurrentInstantiation: | |||
7823 | return IER_Dependent; | |||
7824 | } | |||
7825 | ||||
7826 | llvm_unreachable("Invalid LookupResult Kind!")::llvm::llvm_unreachable_internal("Invalid LookupResult Kind!" , "/build/llvm-toolchain-snapshot-7~svn329677/tools/clang/lib/Sema/SemaExprCXX.cpp" , 7826); | |||
7827 | } | |||
7828 | ||||
7829 | Sema::IfExistsResult | |||
7830 | Sema::CheckMicrosoftIfExistsSymbol(Scope *S, SourceLocation KeywordLoc, | |||
7831 | bool IsIfExists, CXXScopeSpec &SS, | |||
7832 | UnqualifiedId &Name) { | |||
7833 | DeclarationNameInfo TargetNameInfo = GetNameFromUnqualifiedId(Name); | |||
7834 | ||||
7835 | // Check for an unexpanded parameter pack. | |||
7836 | auto UPPC = IsIfExists ? UPPC_IfExists : UPPC_IfNotExists; | |||
7837 | if (DiagnoseUnexpandedParameterPack(SS, UPPC) || | |||
7838 | DiagnoseUnexpandedParameterPack(TargetNameInfo, UPPC)) | |||
7839 | return IER_Error; | |||
7840 | ||||
7841 | return CheckMicrosoftIfExistsSymbol(S, SS, TargetNameInfo); | |||
7842 | } |
1 | /*===- TableGen'erated file -------------------------------------*- C++ -*-===*\ | |||
2 | |* *| | |||
3 | |* Attribute classes' definitions *| | |||
4 | |* *| | |||
5 | |* Automatically generated file, do not edit! *| | |||
6 | |* *| | |||
7 | \*===----------------------------------------------------------------------===*/ | |||
8 | ||||
9 | #ifndef LLVM_CLANG_ATTR_CLASSES_INC | |||
10 | #define LLVM_CLANG_ATTR_CLASSES_INC | |||
11 | ||||
12 | class AMDGPUFlatWorkGroupSizeAttr : public InheritableAttr { | |||
13 | unsigned min; | |||
14 | ||||
15 | unsigned max; | |||
16 | ||||
17 | public: | |||
18 | static AMDGPUFlatWorkGroupSizeAttr *CreateImplicit(ASTContext &Ctx, unsigned Min, unsigned Max, SourceRange Loc = SourceRange()) { | |||
19 | auto *A = new (Ctx) AMDGPUFlatWorkGroupSizeAttr(Loc, Ctx, Min, Max, 0); | |||
20 | A->setImplicit(true); | |||
21 | return A; | |||
22 | } | |||
23 | ||||
24 | AMDGPUFlatWorkGroupSizeAttr(SourceRange R, ASTContext &Ctx | |||
25 | , unsigned Min | |||
26 | , unsigned Max | |||
27 | , unsigned SI | |||
28 | ) | |||
29 | : InheritableAttr(attr::AMDGPUFlatWorkGroupSize, R, SI, false, false) | |||
30 | , min(Min) | |||
31 | , max(Max) | |||
32 | { | |||
33 | } | |||
34 | ||||
35 | AMDGPUFlatWorkGroupSizeAttr *clone(ASTContext &C) const; | |||
36 | void printPretty(raw_ostream &OS, | |||
37 | const PrintingPolicy &Policy) const; | |||
38 | const char *getSpelling() const; | |||
39 | unsigned getMin() const { | |||
40 | return min; | |||
41 | } | |||
42 | ||||
43 | unsigned getMax() const { | |||
44 | return max; | |||
45 | } | |||
46 | ||||
47 | ||||
48 | ||||
49 | static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUFlatWorkGroupSize; } | |||
50 | }; | |||
51 | ||||
52 | class AMDGPUNumSGPRAttr : public InheritableAttr { | |||
53 | unsigned numSGPR; | |||
54 | ||||
55 | public: | |||
56 | static AMDGPUNumSGPRAttr *CreateImplicit(ASTContext &Ctx, unsigned NumSGPR, SourceRange Loc = SourceRange()) { | |||
57 | auto *A = new (Ctx) AMDGPUNumSGPRAttr(Loc, Ctx, NumSGPR, 0); | |||
58 | A->setImplicit(true); | |||
59 | return A; | |||
60 | } | |||
61 | ||||
62 | AMDGPUNumSGPRAttr(SourceRange R, ASTContext &Ctx | |||
63 | , unsigned NumSGPR | |||
64 | , unsigned SI | |||
65 | ) | |||
66 | : InheritableAttr(attr::AMDGPUNumSGPR, R, SI, false, false) | |||
67 | , numSGPR(NumSGPR) | |||
68 | { | |||
69 | } | |||
70 | ||||
71 | AMDGPUNumSGPRAttr *clone(ASTContext &C) const; | |||
72 | void printPretty(raw_ostream &OS, | |||
73 | const PrintingPolicy &Policy) const; | |||
74 | const char *getSpelling() const; | |||
75 | unsigned getNumSGPR() const { | |||
76 | return numSGPR; | |||
77 | } | |||
78 | ||||
79 | ||||
80 | ||||
81 | static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUNumSGPR; } | |||
82 | }; | |||
83 | ||||
84 | class AMDGPUNumVGPRAttr : public InheritableAttr { | |||
85 | unsigned numVGPR; | |||
86 | ||||
87 | public: | |||
88 | static AMDGPUNumVGPRAttr *CreateImplicit(ASTContext &Ctx, unsigned NumVGPR, SourceRange Loc = SourceRange()) { | |||
89 | auto *A = new (Ctx) AMDGPUNumVGPRAttr(Loc, Ctx, NumVGPR, 0); | |||
90 | A->setImplicit(true); | |||
91 | return A; | |||
92 | } | |||
93 | ||||
94 | AMDGPUNumVGPRAttr(SourceRange R, ASTContext &Ctx | |||
95 | , unsigned NumVGPR | |||
96 | , unsigned SI | |||
97 | ) | |||
98 | : InheritableAttr(attr::AMDGPUNumVGPR, R, SI, false, false) | |||
99 | , numVGPR(NumVGPR) | |||
100 | { | |||
101 | } | |||
102 | ||||
103 | AMDGPUNumVGPRAttr *clone(ASTContext &C) const; | |||
104 | void printPretty(raw_ostream &OS, | |||
105 | const PrintingPolicy &Policy) const; | |||
106 | const char *getSpelling() const; | |||
107 | unsigned getNumVGPR() const { | |||
108 | return numVGPR; | |||
109 | } | |||
110 | ||||
111 | ||||
112 | ||||
113 | static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUNumVGPR; } | |||
114 | }; | |||
115 | ||||
116 | class AMDGPUWavesPerEUAttr : public InheritableAttr { | |||
117 | unsigned min; | |||
118 | ||||
119 | unsigned max; | |||
120 | ||||
121 | public: | |||
122 | static AMDGPUWavesPerEUAttr *CreateImplicit(ASTContext &Ctx, unsigned Min, unsigned Max, SourceRange Loc = SourceRange()) { | |||
123 | auto *A = new (Ctx) AMDGPUWavesPerEUAttr(Loc, Ctx, Min, Max, 0); | |||
124 | A->setImplicit(true); | |||
125 | return A; | |||
126 | } | |||
127 | ||||
128 | AMDGPUWavesPerEUAttr(SourceRange R, ASTContext &Ctx | |||
129 | , unsigned Min | |||
130 | , unsigned Max | |||
131 | , unsigned SI | |||
132 | ) | |||
133 | : InheritableAttr(attr::AMDGPUWavesPerEU, R, SI, false, false) | |||
134 | , min(Min) | |||
135 | , max(Max) | |||
136 | { | |||
137 | } | |||
138 | ||||
139 | AMDGPUWavesPerEUAttr(SourceRange R, ASTContext &Ctx | |||
140 | , unsigned Min | |||
141 | , unsigned SI | |||
142 | ) | |||
143 | : InheritableAttr(attr::AMDGPUWavesPerEU, R, SI, false, false) | |||
144 | , min(Min) | |||
145 | , max() | |||
146 | { | |||
147 | } | |||
148 | ||||
149 | AMDGPUWavesPerEUAttr *clone(ASTContext &C) const; | |||
150 | void printPretty(raw_ostream &OS, | |||
151 | const PrintingPolicy &Policy) const; | |||
152 | const char *getSpelling() const; | |||
153 | unsigned getMin() const { | |||
154 | return min; | |||
155 | } | |||
156 | ||||
157 | unsigned getMax() const { | |||
158 | return max; | |||
159 | } | |||
160 | ||||
161 | ||||
162 | ||||
163 | static bool classof(const Attr *A) { return A->getKind() == attr::AMDGPUWavesPerEU; } | |||
164 | }; | |||
165 | ||||
166 | class ARMInterruptAttr : public InheritableAttr { | |||
167 | public: | |||
168 | enum InterruptType { | |||
169 | IRQ, | |||
170 | FIQ, | |||
171 | SWI, | |||
172 | ABORT, | |||
173 | UNDEF, | |||
174 | Generic | |||
175 | }; | |||
176 | private: | |||
177 | InterruptType interrupt; | |||
178 | ||||
179 | public: | |||
180 | static ARMInterruptAttr *CreateImplicit(ASTContext &Ctx, InterruptType Interrupt, SourceRange Loc = SourceRange()) { | |||
181 | auto *A = new (Ctx) ARMInterruptAttr(Loc, Ctx, Interrupt, 0); | |||
182 | A->setImplicit(true); | |||
183 | return A; | |||
184 | } | |||
185 | ||||
186 | ARMInterruptAttr(SourceRange R, ASTContext &Ctx | |||
187 | , InterruptType Interrupt | |||
188 | , unsigned SI | |||
189 | ) | |||
190 | : InheritableAttr(attr::ARMInterrupt, R, SI, false, false) | |||
191 | , interrupt(Interrupt) | |||
192 | { | |||
193 | } | |||
194 | ||||
195 | ARMInterruptAttr(SourceRange R, ASTContext &Ctx | |||
196 | , unsigned SI | |||
197 | ) | |||
198 | : InheritableAttr(attr::ARMInterrupt, R, SI, false, false) | |||
199 | , interrupt(InterruptType(0)) | |||
200 | { | |||
201 | } | |||
202 | ||||
203 | ARMInterruptAttr *clone(ASTContext &C) const; | |||
204 | void printPretty(raw_ostream &OS, | |||
205 | const PrintingPolicy &Policy) const; | |||
206 | const char *getSpelling() const; | |||
207 | InterruptType getInterrupt() const { | |||
208 | return interrupt; | |||
209 | } | |||
210 | ||||
211 | static bool ConvertStrToInterruptType(StringRef Val, InterruptType &Out) { | |||
212 | Optional<InterruptType> R = llvm::StringSwitch<Optional<InterruptType>>(Val) | |||
213 | .Case("IRQ", ARMInterruptAttr::IRQ) | |||
214 | .Case("FIQ", ARMInterruptAttr::FIQ) | |||
215 | .Case("SWI", ARMInterruptAttr::SWI) | |||
216 | .Case("ABORT", ARMInterruptAttr::ABORT) | |||
217 | .Case("UNDEF", ARMInterruptAttr::UNDEF) | |||
218 | .Case("", ARMInterruptAttr::Generic) | |||
219 | .Default(Optional<InterruptType>()); | |||
220 | if (R) { | |||
221 | Out = *R; | |||
222 | return true; | |||
223 | } | |||
224 | return false; | |||
225 | } | |||
226 | ||||
227 | static const char *ConvertInterruptTypeToStr(InterruptType Val) { | |||
228 | switch(Val) { | |||
229 | case ARMInterruptAttr::IRQ: return "IRQ"; | |||
230 | case ARMInterruptAttr::FIQ: return "FIQ"; | |||
231 | case ARMInterruptAttr::SWI: return "SWI"; | |||
232 | case ARMInterruptAttr::ABORT: return "ABORT"; | |||
233 | case ARMInterruptAttr::UNDEF: return "UNDEF"; | |||
234 | case ARMInterruptAttr::Generic: return ""; | |||
235 | } | |||
236 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 236); | |||
237 | } | |||
238 | ||||
239 | ||||
240 | static bool classof(const Attr *A) { return A->getKind() == attr::ARMInterrupt; } | |||
241 | }; | |||
242 | ||||
243 | class AVRInterruptAttr : public InheritableAttr { | |||
244 | public: | |||
245 | static AVRInterruptAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
246 | auto *A = new (Ctx) AVRInterruptAttr(Loc, Ctx, 0); | |||
247 | A->setImplicit(true); | |||
248 | return A; | |||
249 | } | |||
250 | ||||
251 | AVRInterruptAttr(SourceRange R, ASTContext &Ctx | |||
252 | , unsigned SI | |||
253 | ) | |||
254 | : InheritableAttr(attr::AVRInterrupt, R, SI, false, false) | |||
255 | { | |||
256 | } | |||
257 | ||||
258 | AVRInterruptAttr *clone(ASTContext &C) const; | |||
259 | void printPretty(raw_ostream &OS, | |||
260 | const PrintingPolicy &Policy) const; | |||
261 | const char *getSpelling() const; | |||
262 | ||||
263 | ||||
264 | static bool classof(const Attr *A) { return A->getKind() == attr::AVRInterrupt; } | |||
265 | }; | |||
266 | ||||
267 | class AVRSignalAttr : public InheritableAttr { | |||
268 | public: | |||
269 | static AVRSignalAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
270 | auto *A = new (Ctx) AVRSignalAttr(Loc, Ctx, 0); | |||
271 | A->setImplicit(true); | |||
272 | return A; | |||
273 | } | |||
274 | ||||
275 | AVRSignalAttr(SourceRange R, ASTContext &Ctx | |||
276 | , unsigned SI | |||
277 | ) | |||
278 | : InheritableAttr(attr::AVRSignal, R, SI, false, false) | |||
279 | { | |||
280 | } | |||
281 | ||||
282 | AVRSignalAttr *clone(ASTContext &C) const; | |||
283 | void printPretty(raw_ostream &OS, | |||
284 | const PrintingPolicy &Policy) const; | |||
285 | const char *getSpelling() const; | |||
286 | ||||
287 | ||||
288 | static bool classof(const Attr *A) { return A->getKind() == attr::AVRSignal; } | |||
289 | }; | |||
290 | ||||
291 | class AbiTagAttr : public Attr { | |||
292 | unsigned tags_Size; | |||
293 | StringRef *tags_; | |||
294 | ||||
295 | public: | |||
296 | static AbiTagAttr *CreateImplicit(ASTContext &Ctx, StringRef *Tags, unsigned TagsSize, SourceRange Loc = SourceRange()) { | |||
297 | auto *A = new (Ctx) AbiTagAttr(Loc, Ctx, Tags, TagsSize, 0); | |||
298 | A->setImplicit(true); | |||
299 | return A; | |||
300 | } | |||
301 | ||||
302 | AbiTagAttr(SourceRange R, ASTContext &Ctx | |||
303 | , StringRef *Tags, unsigned TagsSize | |||
304 | , unsigned SI | |||
305 | ) | |||
306 | : Attr(attr::AbiTag, R, SI, false) | |||
307 | , tags_Size(TagsSize), tags_(new (Ctx, 16) StringRef[tags_Size]) | |||
308 | { | |||
309 | for (size_t I = 0, E = tags_Size; I != E; | |||
310 | ++I) { | |||
311 | StringRef Ref = Tags[I]; | |||
312 | if (!Ref.empty()) { | |||
313 | char *Mem = new (Ctx, 1) char[Ref.size()]; | |||
314 | std::memcpy(Mem, Ref.data(), Ref.size()); | |||
315 | tags_[I] = StringRef(Mem, Ref.size()); | |||
316 | } | |||
317 | } | |||
318 | } | |||
319 | ||||
320 | AbiTagAttr(SourceRange R, ASTContext &Ctx | |||
321 | , unsigned SI | |||
322 | ) | |||
323 | : Attr(attr::AbiTag, R, SI, false) | |||
324 | , tags_Size(0), tags_(nullptr) | |||
325 | { | |||
326 | } | |||
327 | ||||
328 | AbiTagAttr *clone(ASTContext &C) const; | |||
329 | void printPretty(raw_ostream &OS, | |||
330 | const PrintingPolicy &Policy) const; | |||
331 | const char *getSpelling() const; | |||
332 | typedef StringRef* tags_iterator; | |||
333 | tags_iterator tags_begin() const { return tags_; } | |||
334 | tags_iterator tags_end() const { return tags_ + tags_Size; } | |||
335 | unsigned tags_size() const { return tags_Size; } | |||
336 | llvm::iterator_range<tags_iterator> tags() const { return llvm::make_range(tags_begin(), tags_end()); } | |||
337 | ||||
338 | ||||
339 | ||||
340 | ||||
341 | static bool classof(const Attr *A) { return A->getKind() == attr::AbiTag; } | |||
342 | }; | |||
343 | ||||
344 | class AcquireCapabilityAttr : public InheritableAttr { | |||
345 | unsigned args_Size; | |||
346 | Expr * *args_; | |||
347 | ||||
348 | public: | |||
349 | enum Spelling { | |||
350 | GNU_acquire_capability = 0, | |||
351 | CXX11_clang_acquire_capability = 1, | |||
352 | GNU_acquire_shared_capability = 2, | |||
353 | CXX11_clang_acquire_shared_capability = 3, | |||
354 | GNU_exclusive_lock_function = 4, | |||
355 | GNU_shared_lock_function = 5 | |||
356 | }; | |||
357 | ||||
358 | static AcquireCapabilityAttr *CreateImplicit(ASTContext &Ctx, Spelling S, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
359 | auto *A = new (Ctx) AcquireCapabilityAttr(Loc, Ctx, Args, ArgsSize, S); | |||
360 | A->setImplicit(true); | |||
361 | return A; | |||
362 | } | |||
363 | ||||
364 | AcquireCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
365 | , Expr * *Args, unsigned ArgsSize | |||
366 | , unsigned SI | |||
367 | ) | |||
368 | : InheritableAttr(attr::AcquireCapability, R, SI, true, true) | |||
369 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
370 | { | |||
371 | std::copy(Args, Args + args_Size, args_); | |||
372 | } | |||
373 | ||||
374 | AcquireCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
375 | , unsigned SI | |||
376 | ) | |||
377 | : InheritableAttr(attr::AcquireCapability, R, SI, true, true) | |||
378 | , args_Size(0), args_(nullptr) | |||
379 | { | |||
380 | } | |||
381 | ||||
382 | AcquireCapabilityAttr *clone(ASTContext &C) const; | |||
383 | void printPretty(raw_ostream &OS, | |||
384 | const PrintingPolicy &Policy) const; | |||
385 | const char *getSpelling() const; | |||
386 | Spelling getSemanticSpelling() const { | |||
387 | switch (SpellingListIndex) { | |||
388 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 388); | |||
389 | case 0: return GNU_acquire_capability; | |||
390 | case 1: return CXX11_clang_acquire_capability; | |||
391 | case 2: return GNU_acquire_shared_capability; | |||
392 | case 3: return CXX11_clang_acquire_shared_capability; | |||
393 | case 4: return GNU_exclusive_lock_function; | |||
394 | case 5: return GNU_shared_lock_function; | |||
395 | } | |||
396 | } | |||
397 | bool isShared() const { return SpellingListIndex == 2 || | |||
398 | SpellingListIndex == 3 || | |||
399 | SpellingListIndex == 5; } | |||
400 | typedef Expr ** args_iterator; | |||
401 | args_iterator args_begin() const { return args_; } | |||
402 | args_iterator args_end() const { return args_ + args_Size; } | |||
403 | unsigned args_size() const { return args_Size; } | |||
404 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
405 | ||||
406 | ||||
407 | ||||
408 | ||||
409 | static bool classof(const Attr *A) { return A->getKind() == attr::AcquireCapability; } | |||
410 | }; | |||
411 | ||||
412 | class AcquiredAfterAttr : public InheritableAttr { | |||
413 | unsigned args_Size; | |||
414 | Expr * *args_; | |||
415 | ||||
416 | public: | |||
417 | static AcquiredAfterAttr *CreateImplicit(ASTContext &Ctx, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
418 | auto *A = new (Ctx) AcquiredAfterAttr(Loc, Ctx, Args, ArgsSize, 0); | |||
419 | A->setImplicit(true); | |||
420 | return A; | |||
421 | } | |||
422 | ||||
423 | AcquiredAfterAttr(SourceRange R, ASTContext &Ctx | |||
424 | , Expr * *Args, unsigned ArgsSize | |||
425 | , unsigned SI | |||
426 | ) | |||
427 | : InheritableAttr(attr::AcquiredAfter, R, SI, true, true) | |||
428 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
429 | { | |||
430 | std::copy(Args, Args + args_Size, args_); | |||
431 | } | |||
432 | ||||
433 | AcquiredAfterAttr(SourceRange R, ASTContext &Ctx | |||
434 | , unsigned SI | |||
435 | ) | |||
436 | : InheritableAttr(attr::AcquiredAfter, R, SI, true, true) | |||
437 | , args_Size(0), args_(nullptr) | |||
438 | { | |||
439 | } | |||
440 | ||||
441 | AcquiredAfterAttr *clone(ASTContext &C) const; | |||
442 | void printPretty(raw_ostream &OS, | |||
443 | const PrintingPolicy &Policy) const; | |||
444 | const char *getSpelling() const; | |||
445 | typedef Expr ** args_iterator; | |||
446 | args_iterator args_begin() const { return args_; } | |||
447 | args_iterator args_end() const { return args_ + args_Size; } | |||
448 | unsigned args_size() const { return args_Size; } | |||
449 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
450 | ||||
451 | ||||
452 | ||||
453 | ||||
454 | static bool classof(const Attr *A) { return A->getKind() == attr::AcquiredAfter; } | |||
455 | }; | |||
456 | ||||
457 | class AcquiredBeforeAttr : public InheritableAttr { | |||
458 | unsigned args_Size; | |||
459 | Expr * *args_; | |||
460 | ||||
461 | public: | |||
462 | static AcquiredBeforeAttr *CreateImplicit(ASTContext &Ctx, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
463 | auto *A = new (Ctx) AcquiredBeforeAttr(Loc, Ctx, Args, ArgsSize, 0); | |||
464 | A->setImplicit(true); | |||
465 | return A; | |||
466 | } | |||
467 | ||||
468 | AcquiredBeforeAttr(SourceRange R, ASTContext &Ctx | |||
469 | , Expr * *Args, unsigned ArgsSize | |||
470 | , unsigned SI | |||
471 | ) | |||
472 | : InheritableAttr(attr::AcquiredBefore, R, SI, true, true) | |||
473 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
474 | { | |||
475 | std::copy(Args, Args + args_Size, args_); | |||
476 | } | |||
477 | ||||
478 | AcquiredBeforeAttr(SourceRange R, ASTContext &Ctx | |||
479 | , unsigned SI | |||
480 | ) | |||
481 | : InheritableAttr(attr::AcquiredBefore, R, SI, true, true) | |||
482 | , args_Size(0), args_(nullptr) | |||
483 | { | |||
484 | } | |||
485 | ||||
486 | AcquiredBeforeAttr *clone(ASTContext &C) const; | |||
487 | void printPretty(raw_ostream &OS, | |||
488 | const PrintingPolicy &Policy) const; | |||
489 | const char *getSpelling() const; | |||
490 | typedef Expr ** args_iterator; | |||
491 | args_iterator args_begin() const { return args_; } | |||
492 | args_iterator args_end() const { return args_ + args_Size; } | |||
493 | unsigned args_size() const { return args_Size; } | |||
494 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
495 | ||||
496 | ||||
497 | ||||
498 | ||||
499 | static bool classof(const Attr *A) { return A->getKind() == attr::AcquiredBefore; } | |||
500 | }; | |||
501 | ||||
502 | class AliasAttr : public Attr { | |||
503 | unsigned aliaseeLength; | |||
504 | char *aliasee; | |||
505 | ||||
506 | public: | |||
507 | static AliasAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Aliasee, SourceRange Loc = SourceRange()) { | |||
508 | auto *A = new (Ctx) AliasAttr(Loc, Ctx, Aliasee, 0); | |||
509 | A->setImplicit(true); | |||
510 | return A; | |||
511 | } | |||
512 | ||||
513 | AliasAttr(SourceRange R, ASTContext &Ctx | |||
514 | , llvm::StringRef Aliasee | |||
515 | , unsigned SI | |||
516 | ) | |||
517 | : Attr(attr::Alias, R, SI, false) | |||
518 | , aliaseeLength(Aliasee.size()),aliasee(new (Ctx, 1) char[aliaseeLength]) | |||
519 | { | |||
520 | if (!Aliasee.empty()) | |||
521 | std::memcpy(aliasee, Aliasee.data(), aliaseeLength); | |||
522 | } | |||
523 | ||||
524 | AliasAttr *clone(ASTContext &C) const; | |||
525 | void printPretty(raw_ostream &OS, | |||
526 | const PrintingPolicy &Policy) const; | |||
527 | const char *getSpelling() const; | |||
528 | llvm::StringRef getAliasee() const { | |||
529 | return llvm::StringRef(aliasee, aliaseeLength); | |||
530 | } | |||
531 | unsigned getAliaseeLength() const { | |||
532 | return aliaseeLength; | |||
533 | } | |||
534 | void setAliasee(ASTContext &C, llvm::StringRef S) { | |||
535 | aliaseeLength = S.size(); | |||
536 | this->aliasee = new (C, 1) char [aliaseeLength]; | |||
537 | if (!S.empty()) | |||
538 | std::memcpy(this->aliasee, S.data(), aliaseeLength); | |||
539 | } | |||
540 | ||||
541 | ||||
542 | ||||
543 | static bool classof(const Attr *A) { return A->getKind() == attr::Alias; } | |||
544 | }; | |||
545 | ||||
546 | class AlignMac68kAttr : public InheritableAttr { | |||
547 | public: | |||
548 | static AlignMac68kAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
549 | auto *A = new (Ctx) AlignMac68kAttr(Loc, Ctx, 0); | |||
550 | A->setImplicit(true); | |||
551 | return A; | |||
552 | } | |||
553 | ||||
554 | AlignMac68kAttr(SourceRange R, ASTContext &Ctx | |||
555 | , unsigned SI | |||
556 | ) | |||
557 | : InheritableAttr(attr::AlignMac68k, R, SI, false, false) | |||
558 | { | |||
559 | } | |||
560 | ||||
561 | AlignMac68kAttr *clone(ASTContext &C) const; | |||
562 | void printPretty(raw_ostream &OS, | |||
563 | const PrintingPolicy &Policy) const; | |||
564 | const char *getSpelling() const; | |||
565 | ||||
566 | ||||
567 | static bool classof(const Attr *A) { return A->getKind() == attr::AlignMac68k; } | |||
568 | }; | |||
569 | ||||
570 | class AlignValueAttr : public Attr { | |||
571 | Expr * alignment; | |||
572 | ||||
573 | public: | |||
574 | static AlignValueAttr *CreateImplicit(ASTContext &Ctx, Expr * Alignment, SourceRange Loc = SourceRange()) { | |||
575 | auto *A = new (Ctx) AlignValueAttr(Loc, Ctx, Alignment, 0); | |||
576 | A->setImplicit(true); | |||
577 | return A; | |||
578 | } | |||
579 | ||||
580 | AlignValueAttr(SourceRange R, ASTContext &Ctx | |||
581 | , Expr * Alignment | |||
582 | , unsigned SI | |||
583 | ) | |||
584 | : Attr(attr::AlignValue, R, SI, false) | |||
585 | , alignment(Alignment) | |||
586 | { | |||
587 | } | |||
588 | ||||
589 | AlignValueAttr *clone(ASTContext &C) const; | |||
590 | void printPretty(raw_ostream &OS, | |||
591 | const PrintingPolicy &Policy) const; | |||
592 | const char *getSpelling() const; | |||
593 | Expr * getAlignment() const { | |||
594 | return alignment; | |||
595 | } | |||
596 | ||||
597 | ||||
598 | ||||
599 | static bool classof(const Attr *A) { return A->getKind() == attr::AlignValue; } | |||
600 | }; | |||
601 | ||||
602 | class AlignedAttr : public InheritableAttr { | |||
603 | bool isalignmentExpr; | |||
604 | union { | |||
605 | Expr *alignmentExpr; | |||
606 | TypeSourceInfo *alignmentType; | |||
607 | }; | |||
608 | ||||
609 | public: | |||
610 | enum Spelling { | |||
611 | GNU_aligned = 0, | |||
612 | CXX11_gnu_aligned = 1, | |||
613 | Declspec_align = 2, | |||
614 | Keyword_alignas = 3, | |||
615 | Keyword_Alignas = 4 | |||
616 | }; | |||
617 | ||||
618 | static AlignedAttr *CreateImplicit(ASTContext &Ctx, Spelling S, bool IsAlignmentExpr, void *Alignment, SourceRange Loc = SourceRange()) { | |||
619 | auto *A = new (Ctx) AlignedAttr(Loc, Ctx, IsAlignmentExpr, Alignment, S); | |||
620 | A->setImplicit(true); | |||
621 | return A; | |||
622 | } | |||
623 | ||||
624 | AlignedAttr(SourceRange R, ASTContext &Ctx | |||
625 | , bool IsAlignmentExpr, void *Alignment | |||
626 | , unsigned SI | |||
627 | ) | |||
628 | : InheritableAttr(attr::Aligned, R, SI, false, false) | |||
629 | , isalignmentExpr(IsAlignmentExpr) | |||
630 | { | |||
631 | if (isalignmentExpr) | |||
632 | alignmentExpr = reinterpret_cast<Expr *>(Alignment); | |||
633 | else | |||
634 | alignmentType = reinterpret_cast<TypeSourceInfo *>(Alignment); | |||
635 | } | |||
636 | ||||
637 | AlignedAttr(SourceRange R, ASTContext &Ctx | |||
638 | , unsigned SI | |||
639 | ) | |||
640 | : InheritableAttr(attr::Aligned, R, SI, false, false) | |||
641 | , isalignmentExpr(false) | |||
642 | { | |||
643 | } | |||
644 | ||||
645 | AlignedAttr *clone(ASTContext &C) const; | |||
646 | void printPretty(raw_ostream &OS, | |||
647 | const PrintingPolicy &Policy) const; | |||
648 | const char *getSpelling() const; | |||
649 | Spelling getSemanticSpelling() const { | |||
650 | switch (SpellingListIndex) { | |||
651 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 651); | |||
652 | case 0: return GNU_aligned; | |||
653 | case 1: return CXX11_gnu_aligned; | |||
654 | case 2: return Declspec_align; | |||
655 | case 3: return Keyword_alignas; | |||
656 | case 4: return Keyword_Alignas; | |||
657 | } | |||
658 | } | |||
659 | bool isGNU() const { return SpellingListIndex == 0 || | |||
660 | SpellingListIndex == 1; } | |||
661 | bool isC11() const { return SpellingListIndex == 4; } | |||
662 | bool isAlignas() const { return SpellingListIndex == 3 || | |||
663 | SpellingListIndex == 4; } | |||
664 | bool isDeclspec() const { return SpellingListIndex == 2; } | |||
665 | bool isAlignmentDependent() const; | |||
666 | unsigned getAlignment(ASTContext &Ctx) const; | |||
667 | bool isAlignmentExpr() const { | |||
668 | return isalignmentExpr; | |||
669 | } | |||
670 | Expr *getAlignmentExpr() const { | |||
671 | assert(isalignmentExpr)(static_cast <bool> (isalignmentExpr) ? void (0) : __assert_fail ("isalignmentExpr", "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 671, __extension__ __PRETTY_FUNCTION__)); | |||
672 | return alignmentExpr; | |||
673 | } | |||
674 | TypeSourceInfo *getAlignmentType() const { | |||
675 | assert(!isalignmentExpr)(static_cast <bool> (!isalignmentExpr) ? void (0) : __assert_fail ("!isalignmentExpr", "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 675, __extension__ __PRETTY_FUNCTION__)); | |||
676 | return alignmentType; | |||
677 | } | |||
678 | ||||
679 | ||||
680 | ||||
681 | static bool classof(const Attr *A) { return A->getKind() == attr::Aligned; } | |||
682 | }; | |||
683 | ||||
684 | class AllocAlignAttr : public InheritableAttr { | |||
685 | ParamIdx paramIndex; | |||
686 | ||||
687 | public: | |||
688 | static AllocAlignAttr *CreateImplicit(ASTContext &Ctx, ParamIdx ParamIndex, SourceRange Loc = SourceRange()) { | |||
689 | auto *A = new (Ctx) AllocAlignAttr(Loc, Ctx, ParamIndex, 0); | |||
690 | A->setImplicit(true); | |||
691 | return A; | |||
692 | } | |||
693 | ||||
694 | AllocAlignAttr(SourceRange R, ASTContext &Ctx | |||
695 | , ParamIdx ParamIndex | |||
696 | , unsigned SI | |||
697 | ) | |||
698 | : InheritableAttr(attr::AllocAlign, R, SI, false, false) | |||
699 | , paramIndex(ParamIndex) | |||
700 | { | |||
701 | } | |||
702 | ||||
703 | AllocAlignAttr *clone(ASTContext &C) const; | |||
704 | void printPretty(raw_ostream &OS, | |||
705 | const PrintingPolicy &Policy) const; | |||
706 | const char *getSpelling() const; | |||
707 | ParamIdx getParamIndex() const { | |||
708 | return paramIndex; | |||
709 | } | |||
710 | ||||
711 | ||||
712 | ||||
713 | static bool classof(const Attr *A) { return A->getKind() == attr::AllocAlign; } | |||
714 | }; | |||
715 | ||||
716 | class AllocSizeAttr : public InheritableAttr { | |||
717 | ParamIdx elemSizeParam; | |||
718 | ||||
719 | ParamIdx numElemsParam; | |||
720 | ||||
721 | public: | |||
722 | static AllocSizeAttr *CreateImplicit(ASTContext &Ctx, ParamIdx ElemSizeParam, ParamIdx NumElemsParam, SourceRange Loc = SourceRange()) { | |||
723 | auto *A = new (Ctx) AllocSizeAttr(Loc, Ctx, ElemSizeParam, NumElemsParam, 0); | |||
724 | A->setImplicit(true); | |||
725 | return A; | |||
726 | } | |||
727 | ||||
728 | AllocSizeAttr(SourceRange R, ASTContext &Ctx | |||
729 | , ParamIdx ElemSizeParam | |||
730 | , ParamIdx NumElemsParam | |||
731 | , unsigned SI | |||
732 | ) | |||
733 | : InheritableAttr(attr::AllocSize, R, SI, false, false) | |||
734 | , elemSizeParam(ElemSizeParam) | |||
735 | , numElemsParam(NumElemsParam) | |||
736 | { | |||
737 | } | |||
738 | ||||
739 | AllocSizeAttr(SourceRange R, ASTContext &Ctx | |||
740 | , ParamIdx ElemSizeParam | |||
741 | , unsigned SI | |||
742 | ) | |||
743 | : InheritableAttr(attr::AllocSize, R, SI, false, false) | |||
744 | , elemSizeParam(ElemSizeParam) | |||
745 | , numElemsParam() | |||
746 | { | |||
747 | } | |||
748 | ||||
749 | AllocSizeAttr *clone(ASTContext &C) const; | |||
750 | void printPretty(raw_ostream &OS, | |||
751 | const PrintingPolicy &Policy) const; | |||
752 | const char *getSpelling() const; | |||
753 | ParamIdx getElemSizeParam() const { | |||
754 | return elemSizeParam; | |||
755 | } | |||
756 | ||||
757 | ParamIdx getNumElemsParam() const { | |||
758 | return numElemsParam; | |||
759 | } | |||
760 | ||||
761 | ||||
762 | ||||
763 | static bool classof(const Attr *A) { return A->getKind() == attr::AllocSize; } | |||
764 | }; | |||
765 | ||||
766 | class AlwaysInlineAttr : public InheritableAttr { | |||
767 | public: | |||
768 | enum Spelling { | |||
769 | GNU_always_inline = 0, | |||
770 | CXX11_gnu_always_inline = 1, | |||
771 | Keyword_forceinline = 2 | |||
772 | }; | |||
773 | ||||
774 | static AlwaysInlineAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
775 | auto *A = new (Ctx) AlwaysInlineAttr(Loc, Ctx, S); | |||
776 | A->setImplicit(true); | |||
777 | return A; | |||
778 | } | |||
779 | ||||
780 | AlwaysInlineAttr(SourceRange R, ASTContext &Ctx | |||
781 | , unsigned SI | |||
782 | ) | |||
783 | : InheritableAttr(attr::AlwaysInline, R, SI, false, false) | |||
784 | { | |||
785 | } | |||
786 | ||||
787 | AlwaysInlineAttr *clone(ASTContext &C) const; | |||
788 | void printPretty(raw_ostream &OS, | |||
789 | const PrintingPolicy &Policy) const; | |||
790 | const char *getSpelling() const; | |||
791 | Spelling getSemanticSpelling() const { | |||
792 | switch (SpellingListIndex) { | |||
793 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 793); | |||
794 | case 0: return GNU_always_inline; | |||
795 | case 1: return CXX11_gnu_always_inline; | |||
796 | case 2: return Keyword_forceinline; | |||
797 | } | |||
798 | } | |||
799 | ||||
800 | ||||
801 | static bool classof(const Attr *A) { return A->getKind() == attr::AlwaysInline; } | |||
802 | }; | |||
803 | ||||
804 | class AnalyzerNoReturnAttr : public InheritableAttr { | |||
805 | public: | |||
806 | static AnalyzerNoReturnAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
807 | auto *A = new (Ctx) AnalyzerNoReturnAttr(Loc, Ctx, 0); | |||
808 | A->setImplicit(true); | |||
809 | return A; | |||
810 | } | |||
811 | ||||
812 | AnalyzerNoReturnAttr(SourceRange R, ASTContext &Ctx | |||
813 | , unsigned SI | |||
814 | ) | |||
815 | : InheritableAttr(attr::AnalyzerNoReturn, R, SI, false, false) | |||
816 | { | |||
817 | } | |||
818 | ||||
819 | AnalyzerNoReturnAttr *clone(ASTContext &C) const; | |||
820 | void printPretty(raw_ostream &OS, | |||
821 | const PrintingPolicy &Policy) const; | |||
822 | const char *getSpelling() const; | |||
823 | ||||
824 | ||||
825 | static bool classof(const Attr *A) { return A->getKind() == attr::AnalyzerNoReturn; } | |||
826 | }; | |||
827 | ||||
828 | class AnnotateAttr : public InheritableParamAttr { | |||
829 | unsigned annotationLength; | |||
830 | char *annotation; | |||
831 | ||||
832 | public: | |||
833 | static AnnotateAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Annotation, SourceRange Loc = SourceRange()) { | |||
834 | auto *A = new (Ctx) AnnotateAttr(Loc, Ctx, Annotation, 0); | |||
835 | A->setImplicit(true); | |||
836 | return A; | |||
837 | } | |||
838 | ||||
839 | AnnotateAttr(SourceRange R, ASTContext &Ctx | |||
840 | , llvm::StringRef Annotation | |||
841 | , unsigned SI | |||
842 | ) | |||
843 | : InheritableParamAttr(attr::Annotate, R, SI, false, false) | |||
844 | , annotationLength(Annotation.size()),annotation(new (Ctx, 1) char[annotationLength]) | |||
845 | { | |||
846 | if (!Annotation.empty()) | |||
847 | std::memcpy(annotation, Annotation.data(), annotationLength); | |||
848 | } | |||
849 | ||||
850 | AnnotateAttr *clone(ASTContext &C) const; | |||
851 | void printPretty(raw_ostream &OS, | |||
852 | const PrintingPolicy &Policy) const; | |||
853 | const char *getSpelling() const; | |||
854 | llvm::StringRef getAnnotation() const { | |||
855 | return llvm::StringRef(annotation, annotationLength); | |||
856 | } | |||
857 | unsigned getAnnotationLength() const { | |||
858 | return annotationLength; | |||
859 | } | |||
860 | void setAnnotation(ASTContext &C, llvm::StringRef S) { | |||
861 | annotationLength = S.size(); | |||
862 | this->annotation = new (C, 1) char [annotationLength]; | |||
863 | if (!S.empty()) | |||
864 | std::memcpy(this->annotation, S.data(), annotationLength); | |||
865 | } | |||
866 | ||||
867 | ||||
868 | ||||
869 | static bool classof(const Attr *A) { return A->getKind() == attr::Annotate; } | |||
870 | }; | |||
871 | ||||
872 | class AnyX86InterruptAttr : public InheritableAttr { | |||
873 | public: | |||
874 | static AnyX86InterruptAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
875 | auto *A = new (Ctx) AnyX86InterruptAttr(Loc, Ctx, 0); | |||
876 | A->setImplicit(true); | |||
877 | return A; | |||
878 | } | |||
879 | ||||
880 | AnyX86InterruptAttr(SourceRange R, ASTContext &Ctx | |||
881 | , unsigned SI | |||
882 | ) | |||
883 | : InheritableAttr(attr::AnyX86Interrupt, R, SI, false, false) | |||
884 | { | |||
885 | } | |||
886 | ||||
887 | AnyX86InterruptAttr *clone(ASTContext &C) const; | |||
888 | void printPretty(raw_ostream &OS, | |||
889 | const PrintingPolicy &Policy) const; | |||
890 | const char *getSpelling() const; | |||
891 | ||||
892 | ||||
893 | static bool classof(const Attr *A) { return A->getKind() == attr::AnyX86Interrupt; } | |||
894 | }; | |||
895 | ||||
896 | class AnyX86NoCallerSavedRegistersAttr : public InheritableAttr { | |||
897 | public: | |||
898 | static AnyX86NoCallerSavedRegistersAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
899 | auto *A = new (Ctx) AnyX86NoCallerSavedRegistersAttr(Loc, Ctx, 0); | |||
900 | A->setImplicit(true); | |||
901 | return A; | |||
902 | } | |||
903 | ||||
904 | AnyX86NoCallerSavedRegistersAttr(SourceRange R, ASTContext &Ctx | |||
905 | , unsigned SI | |||
906 | ) | |||
907 | : InheritableAttr(attr::AnyX86NoCallerSavedRegisters, R, SI, false, false) | |||
908 | { | |||
909 | } | |||
910 | ||||
911 | AnyX86NoCallerSavedRegistersAttr *clone(ASTContext &C) const; | |||
912 | void printPretty(raw_ostream &OS, | |||
913 | const PrintingPolicy &Policy) const; | |||
914 | const char *getSpelling() const; | |||
915 | ||||
916 | ||||
917 | static bool classof(const Attr *A) { return A->getKind() == attr::AnyX86NoCallerSavedRegisters; } | |||
918 | }; | |||
919 | ||||
920 | class AnyX86NoCfCheckAttr : public InheritableAttr { | |||
921 | public: | |||
922 | static AnyX86NoCfCheckAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
923 | auto *A = new (Ctx) AnyX86NoCfCheckAttr(Loc, Ctx, 0); | |||
924 | A->setImplicit(true); | |||
925 | return A; | |||
926 | } | |||
927 | ||||
928 | AnyX86NoCfCheckAttr(SourceRange R, ASTContext &Ctx | |||
929 | , unsigned SI | |||
930 | ) | |||
931 | : InheritableAttr(attr::AnyX86NoCfCheck, R, SI, false, false) | |||
932 | { | |||
933 | } | |||
934 | ||||
935 | AnyX86NoCfCheckAttr *clone(ASTContext &C) const; | |||
936 | void printPretty(raw_ostream &OS, | |||
937 | const PrintingPolicy &Policy) const; | |||
938 | const char *getSpelling() const; | |||
939 | ||||
940 | ||||
941 | static bool classof(const Attr *A) { return A->getKind() == attr::AnyX86NoCfCheck; } | |||
942 | }; | |||
943 | ||||
944 | class ArcWeakrefUnavailableAttr : public InheritableAttr { | |||
945 | public: | |||
946 | static ArcWeakrefUnavailableAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
947 | auto *A = new (Ctx) ArcWeakrefUnavailableAttr(Loc, Ctx, 0); | |||
948 | A->setImplicit(true); | |||
949 | return A; | |||
950 | } | |||
951 | ||||
952 | ArcWeakrefUnavailableAttr(SourceRange R, ASTContext &Ctx | |||
953 | , unsigned SI | |||
954 | ) | |||
955 | : InheritableAttr(attr::ArcWeakrefUnavailable, R, SI, false, false) | |||
956 | { | |||
957 | } | |||
958 | ||||
959 | ArcWeakrefUnavailableAttr *clone(ASTContext &C) const; | |||
960 | void printPretty(raw_ostream &OS, | |||
961 | const PrintingPolicy &Policy) const; | |||
962 | const char *getSpelling() const; | |||
963 | ||||
964 | ||||
965 | static bool classof(const Attr *A) { return A->getKind() == attr::ArcWeakrefUnavailable; } | |||
966 | }; | |||
967 | ||||
968 | class ArgumentWithTypeTagAttr : public InheritableAttr { | |||
969 | IdentifierInfo * argumentKind; | |||
970 | ||||
971 | ParamIdx argumentIdx; | |||
972 | ||||
973 | ParamIdx typeTagIdx; | |||
974 | ||||
975 | bool isPointer; | |||
976 | ||||
977 | public: | |||
978 | enum Spelling { | |||
979 | GNU_argument_with_type_tag = 0, | |||
980 | CXX11_clang_argument_with_type_tag = 1, | |||
981 | C2x_clang_argument_with_type_tag = 2, | |||
982 | GNU_pointer_with_type_tag = 3, | |||
983 | CXX11_clang_pointer_with_type_tag = 4, | |||
984 | C2x_clang_pointer_with_type_tag = 5 | |||
985 | }; | |||
986 | ||||
987 | static ArgumentWithTypeTagAttr *CreateImplicit(ASTContext &Ctx, Spelling S, IdentifierInfo * ArgumentKind, ParamIdx ArgumentIdx, ParamIdx TypeTagIdx, bool IsPointer, SourceRange Loc = SourceRange()) { | |||
988 | auto *A = new (Ctx) ArgumentWithTypeTagAttr(Loc, Ctx, ArgumentKind, ArgumentIdx, TypeTagIdx, IsPointer, S); | |||
989 | A->setImplicit(true); | |||
990 | return A; | |||
991 | } | |||
992 | ||||
993 | static ArgumentWithTypeTagAttr *CreateImplicit(ASTContext &Ctx, Spelling S, IdentifierInfo * ArgumentKind, ParamIdx ArgumentIdx, ParamIdx TypeTagIdx, SourceRange Loc = SourceRange()) { | |||
994 | auto *A = new (Ctx) ArgumentWithTypeTagAttr(Loc, Ctx, ArgumentKind, ArgumentIdx, TypeTagIdx, S); | |||
995 | A->setImplicit(true); | |||
996 | return A; | |||
997 | } | |||
998 | ||||
999 | ArgumentWithTypeTagAttr(SourceRange R, ASTContext &Ctx | |||
1000 | , IdentifierInfo * ArgumentKind | |||
1001 | , ParamIdx ArgumentIdx | |||
1002 | , ParamIdx TypeTagIdx | |||
1003 | , bool IsPointer | |||
1004 | , unsigned SI | |||
1005 | ) | |||
1006 | : InheritableAttr(attr::ArgumentWithTypeTag, R, SI, false, false) | |||
1007 | , argumentKind(ArgumentKind) | |||
1008 | , argumentIdx(ArgumentIdx) | |||
1009 | , typeTagIdx(TypeTagIdx) | |||
1010 | , isPointer(IsPointer) | |||
1011 | { | |||
1012 | } | |||
1013 | ||||
1014 | ArgumentWithTypeTagAttr(SourceRange R, ASTContext &Ctx | |||
1015 | , IdentifierInfo * ArgumentKind | |||
1016 | , ParamIdx ArgumentIdx | |||
1017 | , ParamIdx TypeTagIdx | |||
1018 | , unsigned SI | |||
1019 | ) | |||
1020 | : InheritableAttr(attr::ArgumentWithTypeTag, R, SI, false, false) | |||
1021 | , argumentKind(ArgumentKind) | |||
1022 | , argumentIdx(ArgumentIdx) | |||
1023 | , typeTagIdx(TypeTagIdx) | |||
1024 | , isPointer() | |||
1025 | { | |||
1026 | } | |||
1027 | ||||
1028 | ArgumentWithTypeTagAttr *clone(ASTContext &C) const; | |||
1029 | void printPretty(raw_ostream &OS, | |||
1030 | const PrintingPolicy &Policy) const; | |||
1031 | const char *getSpelling() const; | |||
1032 | Spelling getSemanticSpelling() const { | |||
1033 | switch (SpellingListIndex) { | |||
1034 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 1034); | |||
1035 | case 0: return GNU_argument_with_type_tag; | |||
1036 | case 1: return CXX11_clang_argument_with_type_tag; | |||
1037 | case 2: return C2x_clang_argument_with_type_tag; | |||
1038 | case 3: return GNU_pointer_with_type_tag; | |||
1039 | case 4: return CXX11_clang_pointer_with_type_tag; | |||
1040 | case 5: return C2x_clang_pointer_with_type_tag; | |||
1041 | } | |||
1042 | } | |||
1043 | IdentifierInfo * getArgumentKind() const { | |||
1044 | return argumentKind; | |||
1045 | } | |||
1046 | ||||
1047 | ParamIdx getArgumentIdx() const { | |||
1048 | return argumentIdx; | |||
1049 | } | |||
1050 | ||||
1051 | ParamIdx getTypeTagIdx() const { | |||
1052 | return typeTagIdx; | |||
1053 | } | |||
1054 | ||||
1055 | bool getIsPointer() const { | |||
1056 | return isPointer; | |||
1057 | } | |||
1058 | ||||
1059 | ||||
1060 | ||||
1061 | static bool classof(const Attr *A) { return A->getKind() == attr::ArgumentWithTypeTag; } | |||
1062 | }; | |||
1063 | ||||
1064 | class ArtificialAttr : public InheritableAttr { | |||
1065 | public: | |||
1066 | static ArtificialAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1067 | auto *A = new (Ctx) ArtificialAttr(Loc, Ctx, 0); | |||
1068 | A->setImplicit(true); | |||
1069 | return A; | |||
1070 | } | |||
1071 | ||||
1072 | ArtificialAttr(SourceRange R, ASTContext &Ctx | |||
1073 | , unsigned SI | |||
1074 | ) | |||
1075 | : InheritableAttr(attr::Artificial, R, SI, false, false) | |||
1076 | { | |||
1077 | } | |||
1078 | ||||
1079 | ArtificialAttr *clone(ASTContext &C) const; | |||
1080 | void printPretty(raw_ostream &OS, | |||
1081 | const PrintingPolicy &Policy) const; | |||
1082 | const char *getSpelling() const; | |||
1083 | ||||
1084 | ||||
1085 | static bool classof(const Attr *A) { return A->getKind() == attr::Artificial; } | |||
1086 | }; | |||
1087 | ||||
1088 | class AsmLabelAttr : public InheritableAttr { | |||
1089 | unsigned labelLength; | |||
1090 | char *label; | |||
1091 | ||||
1092 | public: | |||
1093 | static AsmLabelAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Label, SourceRange Loc = SourceRange()) { | |||
1094 | auto *A = new (Ctx) AsmLabelAttr(Loc, Ctx, Label, 0); | |||
1095 | A->setImplicit(true); | |||
1096 | return A; | |||
1097 | } | |||
1098 | ||||
1099 | AsmLabelAttr(SourceRange R, ASTContext &Ctx | |||
1100 | , llvm::StringRef Label | |||
1101 | , unsigned SI | |||
1102 | ) | |||
1103 | : InheritableAttr(attr::AsmLabel, R, SI, false, false) | |||
1104 | , labelLength(Label.size()),label(new (Ctx, 1) char[labelLength]) | |||
1105 | { | |||
1106 | if (!Label.empty()) | |||
1107 | std::memcpy(label, Label.data(), labelLength); | |||
1108 | } | |||
1109 | ||||
1110 | AsmLabelAttr *clone(ASTContext &C) const; | |||
1111 | void printPretty(raw_ostream &OS, | |||
1112 | const PrintingPolicy &Policy) const; | |||
1113 | const char *getSpelling() const; | |||
1114 | llvm::StringRef getLabel() const { | |||
1115 | return llvm::StringRef(label, labelLength); | |||
1116 | } | |||
1117 | unsigned getLabelLength() const { | |||
1118 | return labelLength; | |||
1119 | } | |||
1120 | void setLabel(ASTContext &C, llvm::StringRef S) { | |||
1121 | labelLength = S.size(); | |||
1122 | this->label = new (C, 1) char [labelLength]; | |||
1123 | if (!S.empty()) | |||
1124 | std::memcpy(this->label, S.data(), labelLength); | |||
1125 | } | |||
1126 | ||||
1127 | ||||
1128 | ||||
1129 | static bool classof(const Attr *A) { return A->getKind() == attr::AsmLabel; } | |||
1130 | }; | |||
1131 | ||||
1132 | class AssertCapabilityAttr : public InheritableAttr { | |||
1133 | unsigned args_Size; | |||
1134 | Expr * *args_; | |||
1135 | ||||
1136 | public: | |||
1137 | enum Spelling { | |||
1138 | GNU_assert_capability = 0, | |||
1139 | CXX11_clang_assert_capability = 1, | |||
1140 | GNU_assert_shared_capability = 2, | |||
1141 | CXX11_clang_assert_shared_capability = 3 | |||
1142 | }; | |||
1143 | ||||
1144 | static AssertCapabilityAttr *CreateImplicit(ASTContext &Ctx, Spelling S, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
1145 | auto *A = new (Ctx) AssertCapabilityAttr(Loc, Ctx, Args, ArgsSize, S); | |||
1146 | A->setImplicit(true); | |||
1147 | return A; | |||
1148 | } | |||
1149 | ||||
1150 | AssertCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
1151 | , Expr * *Args, unsigned ArgsSize | |||
1152 | , unsigned SI | |||
1153 | ) | |||
1154 | : InheritableAttr(attr::AssertCapability, R, SI, true, true) | |||
1155 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
1156 | { | |||
1157 | std::copy(Args, Args + args_Size, args_); | |||
1158 | } | |||
1159 | ||||
1160 | AssertCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
1161 | , unsigned SI | |||
1162 | ) | |||
1163 | : InheritableAttr(attr::AssertCapability, R, SI, true, true) | |||
1164 | , args_Size(0), args_(nullptr) | |||
1165 | { | |||
1166 | } | |||
1167 | ||||
1168 | AssertCapabilityAttr *clone(ASTContext &C) const; | |||
1169 | void printPretty(raw_ostream &OS, | |||
1170 | const PrintingPolicy &Policy) const; | |||
1171 | const char *getSpelling() const; | |||
1172 | Spelling getSemanticSpelling() const { | |||
1173 | switch (SpellingListIndex) { | |||
1174 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 1174); | |||
1175 | case 0: return GNU_assert_capability; | |||
1176 | case 1: return CXX11_clang_assert_capability; | |||
1177 | case 2: return GNU_assert_shared_capability; | |||
1178 | case 3: return CXX11_clang_assert_shared_capability; | |||
1179 | } | |||
1180 | } | |||
1181 | bool isShared() const { return SpellingListIndex == 2 || | |||
1182 | SpellingListIndex == 3; } | |||
1183 | typedef Expr ** args_iterator; | |||
1184 | args_iterator args_begin() const { return args_; } | |||
1185 | args_iterator args_end() const { return args_ + args_Size; } | |||
1186 | unsigned args_size() const { return args_Size; } | |||
1187 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
1188 | ||||
1189 | ||||
1190 | ||||
1191 | ||||
1192 | static bool classof(const Attr *A) { return A->getKind() == attr::AssertCapability; } | |||
1193 | }; | |||
1194 | ||||
1195 | class AssertExclusiveLockAttr : public InheritableAttr { | |||
1196 | unsigned args_Size; | |||
1197 | Expr * *args_; | |||
1198 | ||||
1199 | public: | |||
1200 | static AssertExclusiveLockAttr *CreateImplicit(ASTContext &Ctx, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
1201 | auto *A = new (Ctx) AssertExclusiveLockAttr(Loc, Ctx, Args, ArgsSize, 0); | |||
1202 | A->setImplicit(true); | |||
1203 | return A; | |||
1204 | } | |||
1205 | ||||
1206 | AssertExclusiveLockAttr(SourceRange R, ASTContext &Ctx | |||
1207 | , Expr * *Args, unsigned ArgsSize | |||
1208 | , unsigned SI | |||
1209 | ) | |||
1210 | : InheritableAttr(attr::AssertExclusiveLock, R, SI, true, true) | |||
1211 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
1212 | { | |||
1213 | std::copy(Args, Args + args_Size, args_); | |||
1214 | } | |||
1215 | ||||
1216 | AssertExclusiveLockAttr(SourceRange R, ASTContext &Ctx | |||
1217 | , unsigned SI | |||
1218 | ) | |||
1219 | : InheritableAttr(attr::AssertExclusiveLock, R, SI, true, true) | |||
1220 | , args_Size(0), args_(nullptr) | |||
1221 | { | |||
1222 | } | |||
1223 | ||||
1224 | AssertExclusiveLockAttr *clone(ASTContext &C) const; | |||
1225 | void printPretty(raw_ostream &OS, | |||
1226 | const PrintingPolicy &Policy) const; | |||
1227 | const char *getSpelling() const; | |||
1228 | typedef Expr ** args_iterator; | |||
1229 | args_iterator args_begin() const { return args_; } | |||
1230 | args_iterator args_end() const { return args_ + args_Size; } | |||
1231 | unsigned args_size() const { return args_Size; } | |||
1232 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
1233 | ||||
1234 | ||||
1235 | ||||
1236 | ||||
1237 | static bool classof(const Attr *A) { return A->getKind() == attr::AssertExclusiveLock; } | |||
1238 | }; | |||
1239 | ||||
1240 | class AssertSharedLockAttr : public InheritableAttr { | |||
1241 | unsigned args_Size; | |||
1242 | Expr * *args_; | |||
1243 | ||||
1244 | public: | |||
1245 | static AssertSharedLockAttr *CreateImplicit(ASTContext &Ctx, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
1246 | auto *A = new (Ctx) AssertSharedLockAttr(Loc, Ctx, Args, ArgsSize, 0); | |||
1247 | A->setImplicit(true); | |||
1248 | return A; | |||
1249 | } | |||
1250 | ||||
1251 | AssertSharedLockAttr(SourceRange R, ASTContext &Ctx | |||
1252 | , Expr * *Args, unsigned ArgsSize | |||
1253 | , unsigned SI | |||
1254 | ) | |||
1255 | : InheritableAttr(attr::AssertSharedLock, R, SI, true, true) | |||
1256 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
1257 | { | |||
1258 | std::copy(Args, Args + args_Size, args_); | |||
1259 | } | |||
1260 | ||||
1261 | AssertSharedLockAttr(SourceRange R, ASTContext &Ctx | |||
1262 | , unsigned SI | |||
1263 | ) | |||
1264 | : InheritableAttr(attr::AssertSharedLock, R, SI, true, true) | |||
1265 | , args_Size(0), args_(nullptr) | |||
1266 | { | |||
1267 | } | |||
1268 | ||||
1269 | AssertSharedLockAttr *clone(ASTContext &C) const; | |||
1270 | void printPretty(raw_ostream &OS, | |||
1271 | const PrintingPolicy &Policy) const; | |||
1272 | const char *getSpelling() const; | |||
1273 | typedef Expr ** args_iterator; | |||
1274 | args_iterator args_begin() const { return args_; } | |||
1275 | args_iterator args_end() const { return args_ + args_Size; } | |||
1276 | unsigned args_size() const { return args_Size; } | |||
1277 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
1278 | ||||
1279 | ||||
1280 | ||||
1281 | ||||
1282 | static bool classof(const Attr *A) { return A->getKind() == attr::AssertSharedLock; } | |||
1283 | }; | |||
1284 | ||||
1285 | class AssumeAlignedAttr : public InheritableAttr { | |||
1286 | Expr * alignment; | |||
1287 | ||||
1288 | Expr * offset; | |||
1289 | ||||
1290 | public: | |||
1291 | static AssumeAlignedAttr *CreateImplicit(ASTContext &Ctx, Expr * Alignment, Expr * Offset, SourceRange Loc = SourceRange()) { | |||
1292 | auto *A = new (Ctx) AssumeAlignedAttr(Loc, Ctx, Alignment, Offset, 0); | |||
1293 | A->setImplicit(true); | |||
1294 | return A; | |||
1295 | } | |||
1296 | ||||
1297 | AssumeAlignedAttr(SourceRange R, ASTContext &Ctx | |||
1298 | , Expr * Alignment | |||
1299 | , Expr * Offset | |||
1300 | , unsigned SI | |||
1301 | ) | |||
1302 | : InheritableAttr(attr::AssumeAligned, R, SI, false, false) | |||
1303 | , alignment(Alignment) | |||
1304 | , offset(Offset) | |||
1305 | { | |||
1306 | } | |||
1307 | ||||
1308 | AssumeAlignedAttr(SourceRange R, ASTContext &Ctx | |||
1309 | , Expr * Alignment | |||
1310 | , unsigned SI | |||
1311 | ) | |||
1312 | : InheritableAttr(attr::AssumeAligned, R, SI, false, false) | |||
1313 | , alignment(Alignment) | |||
1314 | , offset() | |||
1315 | { | |||
1316 | } | |||
1317 | ||||
1318 | AssumeAlignedAttr *clone(ASTContext &C) const; | |||
1319 | void printPretty(raw_ostream &OS, | |||
1320 | const PrintingPolicy &Policy) const; | |||
1321 | const char *getSpelling() const; | |||
1322 | Expr * getAlignment() const { | |||
1323 | return alignment; | |||
1324 | } | |||
1325 | ||||
1326 | Expr * getOffset() const { | |||
1327 | return offset; | |||
1328 | } | |||
1329 | ||||
1330 | ||||
1331 | ||||
1332 | static bool classof(const Attr *A) { return A->getKind() == attr::AssumeAligned; } | |||
1333 | }; | |||
1334 | ||||
1335 | class AvailabilityAttr : public InheritableAttr { | |||
1336 | IdentifierInfo * platform; | |||
1337 | ||||
1338 | VersionTuple introduced; | |||
1339 | ||||
1340 | ||||
1341 | VersionTuple deprecated; | |||
1342 | ||||
1343 | ||||
1344 | VersionTuple obsoleted; | |||
1345 | ||||
1346 | ||||
1347 | bool unavailable; | |||
1348 | ||||
1349 | unsigned messageLength; | |||
1350 | char *message; | |||
1351 | ||||
1352 | bool strict; | |||
1353 | ||||
1354 | unsigned replacementLength; | |||
1355 | char *replacement; | |||
1356 | ||||
1357 | public: | |||
1358 | static AvailabilityAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * Platform, VersionTuple Introduced, VersionTuple Deprecated, VersionTuple Obsoleted, bool Unavailable, llvm::StringRef Message, bool Strict, llvm::StringRef Replacement, SourceRange Loc = SourceRange()) { | |||
1359 | auto *A = new (Ctx) AvailabilityAttr(Loc, Ctx, Platform, Introduced, Deprecated, Obsoleted, Unavailable, Message, Strict, Replacement, 0); | |||
1360 | A->setImplicit(true); | |||
1361 | return A; | |||
1362 | } | |||
1363 | ||||
1364 | AvailabilityAttr(SourceRange R, ASTContext &Ctx | |||
1365 | , IdentifierInfo * Platform | |||
1366 | , VersionTuple Introduced | |||
1367 | , VersionTuple Deprecated | |||
1368 | , VersionTuple Obsoleted | |||
1369 | , bool Unavailable | |||
1370 | , llvm::StringRef Message | |||
1371 | , bool Strict | |||
1372 | , llvm::StringRef Replacement | |||
1373 | , unsigned SI | |||
1374 | ) | |||
1375 | : InheritableAttr(attr::Availability, R, SI, false, true) | |||
1376 | , platform(Platform) | |||
1377 | , introduced(Introduced) | |||
1378 | , deprecated(Deprecated) | |||
1379 | , obsoleted(Obsoleted) | |||
1380 | , unavailable(Unavailable) | |||
1381 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
1382 | , strict(Strict) | |||
1383 | , replacementLength(Replacement.size()),replacement(new (Ctx, 1) char[replacementLength]) | |||
1384 | { | |||
1385 | if (!Message.empty()) | |||
1386 | std::memcpy(message, Message.data(), messageLength); | |||
1387 | if (!Replacement.empty()) | |||
1388 | std::memcpy(replacement, Replacement.data(), replacementLength); | |||
1389 | } | |||
1390 | ||||
1391 | AvailabilityAttr *clone(ASTContext &C) const; | |||
1392 | void printPretty(raw_ostream &OS, | |||
1393 | const PrintingPolicy &Policy) const; | |||
1394 | const char *getSpelling() const; | |||
1395 | IdentifierInfo * getPlatform() const { | |||
1396 | return platform; | |||
1397 | } | |||
1398 | ||||
1399 | VersionTuple getIntroduced() const { | |||
1400 | return introduced; | |||
1401 | } | |||
1402 | void setIntroduced(ASTContext &C, VersionTuple V) { | |||
1403 | introduced = V; | |||
1404 | } | |||
1405 | ||||
1406 | VersionTuple getDeprecated() const { | |||
1407 | return deprecated; | |||
1408 | } | |||
1409 | void setDeprecated(ASTContext &C, VersionTuple V) { | |||
1410 | deprecated = V; | |||
1411 | } | |||
1412 | ||||
1413 | VersionTuple getObsoleted() const { | |||
1414 | return obsoleted; | |||
1415 | } | |||
1416 | void setObsoleted(ASTContext &C, VersionTuple V) { | |||
1417 | obsoleted = V; | |||
1418 | } | |||
1419 | ||||
1420 | bool getUnavailable() const { | |||
1421 | return unavailable; | |||
1422 | } | |||
1423 | ||||
1424 | llvm::StringRef getMessage() const { | |||
1425 | return llvm::StringRef(message, messageLength); | |||
1426 | } | |||
1427 | unsigned getMessageLength() const { | |||
1428 | return messageLength; | |||
1429 | } | |||
1430 | void setMessage(ASTContext &C, llvm::StringRef S) { | |||
1431 | messageLength = S.size(); | |||
1432 | this->message = new (C, 1) char [messageLength]; | |||
1433 | if (!S.empty()) | |||
1434 | std::memcpy(this->message, S.data(), messageLength); | |||
1435 | } | |||
1436 | ||||
1437 | bool getStrict() const { | |||
1438 | return strict; | |||
1439 | } | |||
1440 | ||||
1441 | llvm::StringRef getReplacement() const { | |||
1442 | return llvm::StringRef(replacement, replacementLength); | |||
1443 | } | |||
1444 | unsigned getReplacementLength() const { | |||
1445 | return replacementLength; | |||
1446 | } | |||
1447 | void setReplacement(ASTContext &C, llvm::StringRef S) { | |||
1448 | replacementLength = S.size(); | |||
1449 | this->replacement = new (C, 1) char [replacementLength]; | |||
1450 | if (!S.empty()) | |||
1451 | std::memcpy(this->replacement, S.data(), replacementLength); | |||
1452 | } | |||
1453 | ||||
1454 | static llvm::StringRef getPrettyPlatformName(llvm::StringRef Platform) { | |||
1455 | return llvm::StringSwitch<llvm::StringRef>(Platform) | |||
1456 | .Case("android", "Android") | |||
1457 | .Case("ios", "iOS") | |||
1458 | .Case("macos", "macOS") | |||
1459 | .Case("tvos", "tvOS") | |||
1460 | .Case("watchos", "watchOS") | |||
1461 | .Case("ios_app_extension", "iOS (App Extension)") | |||
1462 | .Case("macos_app_extension", "macOS (App Extension)") | |||
1463 | .Case("tvos_app_extension", "tvOS (App Extension)") | |||
1464 | .Case("watchos_app_extension", "watchOS (App Extension)") | |||
1465 | .Default(llvm::StringRef()); | |||
1466 | } | |||
1467 | static llvm::StringRef getPlatformNameSourceSpelling(llvm::StringRef Platform) { | |||
1468 | return llvm::StringSwitch<llvm::StringRef>(Platform) | |||
1469 | .Case("ios", "iOS") | |||
1470 | .Case("macos", "macOS") | |||
1471 | .Case("tvos", "tvOS") | |||
1472 | .Case("watchos", "watchOS") | |||
1473 | .Case("ios_app_extension", "iOSApplicationExtension") | |||
1474 | .Case("macos_app_extension", "macOSApplicationExtension") | |||
1475 | .Case("tvos_app_extension", "tvOSApplicationExtension") | |||
1476 | .Case("watchos_app_extension", "watchOSApplicationExtension") | |||
1477 | .Default(Platform); | |||
1478 | } | |||
1479 | static llvm::StringRef canonicalizePlatformName(llvm::StringRef Platform) { | |||
1480 | return llvm::StringSwitch<llvm::StringRef>(Platform) | |||
1481 | .Case("iOS", "ios") | |||
1482 | .Case("macOS", "macos") | |||
1483 | .Case("tvOS", "tvos") | |||
1484 | .Case("watchOS", "watchos") | |||
1485 | .Case("iOSApplicationExtension", "ios_app_extension") | |||
1486 | .Case("macOSApplicationExtension", "macos_app_extension") | |||
1487 | .Case("tvOSApplicationExtension", "tvos_app_extension") | |||
1488 | .Case("watchOSApplicationExtension", "watchos_app_extension") | |||
1489 | .Default(Platform); | |||
1490 | } | |||
1491 | ||||
1492 | static bool classof(const Attr *A) { return A->getKind() == attr::Availability; } | |||
1493 | }; | |||
1494 | ||||
1495 | class BlocksAttr : public InheritableAttr { | |||
1496 | public: | |||
1497 | enum BlockType { | |||
1498 | ByRef | |||
1499 | }; | |||
1500 | private: | |||
1501 | BlockType type; | |||
1502 | ||||
1503 | public: | |||
1504 | static BlocksAttr *CreateImplicit(ASTContext &Ctx, BlockType Type, SourceRange Loc = SourceRange()) { | |||
1505 | auto *A = new (Ctx) BlocksAttr(Loc, Ctx, Type, 0); | |||
1506 | A->setImplicit(true); | |||
1507 | return A; | |||
1508 | } | |||
1509 | ||||
1510 | BlocksAttr(SourceRange R, ASTContext &Ctx | |||
1511 | , BlockType Type | |||
1512 | , unsigned SI | |||
1513 | ) | |||
1514 | : InheritableAttr(attr::Blocks, R, SI, false, false) | |||
1515 | , type(Type) | |||
1516 | { | |||
1517 | } | |||
1518 | ||||
1519 | BlocksAttr *clone(ASTContext &C) const; | |||
1520 | void printPretty(raw_ostream &OS, | |||
1521 | const PrintingPolicy &Policy) const; | |||
1522 | const char *getSpelling() const; | |||
1523 | BlockType getType() const { | |||
1524 | return type; | |||
1525 | } | |||
1526 | ||||
1527 | static bool ConvertStrToBlockType(StringRef Val, BlockType &Out) { | |||
1528 | Optional<BlockType> R = llvm::StringSwitch<Optional<BlockType>>(Val) | |||
1529 | .Case("byref", BlocksAttr::ByRef) | |||
1530 | .Default(Optional<BlockType>()); | |||
1531 | if (R) { | |||
1532 | Out = *R; | |||
1533 | return true; | |||
1534 | } | |||
1535 | return false; | |||
1536 | } | |||
1537 | ||||
1538 | static const char *ConvertBlockTypeToStr(BlockType Val) { | |||
1539 | switch(Val) { | |||
1540 | case BlocksAttr::ByRef: return "byref"; | |||
1541 | } | |||
1542 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 1542); | |||
1543 | } | |||
1544 | ||||
1545 | ||||
1546 | static bool classof(const Attr *A) { return A->getKind() == attr::Blocks; } | |||
1547 | }; | |||
1548 | ||||
1549 | class C11NoReturnAttr : public InheritableAttr { | |||
1550 | public: | |||
1551 | static C11NoReturnAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1552 | auto *A = new (Ctx) C11NoReturnAttr(Loc, Ctx, 0); | |||
1553 | A->setImplicit(true); | |||
1554 | return A; | |||
1555 | } | |||
1556 | ||||
1557 | C11NoReturnAttr(SourceRange R, ASTContext &Ctx | |||
1558 | , unsigned SI | |||
1559 | ) | |||
1560 | : InheritableAttr(attr::C11NoReturn, R, SI, false, false) | |||
1561 | { | |||
1562 | } | |||
1563 | ||||
1564 | C11NoReturnAttr *clone(ASTContext &C) const; | |||
1565 | void printPretty(raw_ostream &OS, | |||
1566 | const PrintingPolicy &Policy) const; | |||
1567 | const char *getSpelling() const; | |||
1568 | ||||
1569 | ||||
1570 | static bool classof(const Attr *A) { return A->getKind() == attr::C11NoReturn; } | |||
1571 | }; | |||
1572 | ||||
1573 | class CDeclAttr : public InheritableAttr { | |||
1574 | public: | |||
1575 | static CDeclAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1576 | auto *A = new (Ctx) CDeclAttr(Loc, Ctx, 0); | |||
1577 | A->setImplicit(true); | |||
1578 | return A; | |||
1579 | } | |||
1580 | ||||
1581 | CDeclAttr(SourceRange R, ASTContext &Ctx | |||
1582 | , unsigned SI | |||
1583 | ) | |||
1584 | : InheritableAttr(attr::CDecl, R, SI, false, false) | |||
1585 | { | |||
1586 | } | |||
1587 | ||||
1588 | CDeclAttr *clone(ASTContext &C) const; | |||
1589 | void printPretty(raw_ostream &OS, | |||
1590 | const PrintingPolicy &Policy) const; | |||
1591 | const char *getSpelling() const; | |||
1592 | ||||
1593 | ||||
1594 | static bool classof(const Attr *A) { return A->getKind() == attr::CDecl; } | |||
1595 | }; | |||
1596 | ||||
1597 | class CFAuditedTransferAttr : public InheritableAttr { | |||
1598 | public: | |||
1599 | static CFAuditedTransferAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1600 | auto *A = new (Ctx) CFAuditedTransferAttr(Loc, Ctx, 0); | |||
1601 | A->setImplicit(true); | |||
1602 | return A; | |||
1603 | } | |||
1604 | ||||
1605 | CFAuditedTransferAttr(SourceRange R, ASTContext &Ctx | |||
1606 | , unsigned SI | |||
1607 | ) | |||
1608 | : InheritableAttr(attr::CFAuditedTransfer, R, SI, false, false) | |||
1609 | { | |||
1610 | } | |||
1611 | ||||
1612 | CFAuditedTransferAttr *clone(ASTContext &C) const; | |||
1613 | void printPretty(raw_ostream &OS, | |||
1614 | const PrintingPolicy &Policy) const; | |||
1615 | const char *getSpelling() const; | |||
1616 | ||||
1617 | ||||
1618 | static bool classof(const Attr *A) { return A->getKind() == attr::CFAuditedTransfer; } | |||
1619 | }; | |||
1620 | ||||
1621 | class CFConsumedAttr : public InheritableParamAttr { | |||
1622 | public: | |||
1623 | static CFConsumedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1624 | auto *A = new (Ctx) CFConsumedAttr(Loc, Ctx, 0); | |||
1625 | A->setImplicit(true); | |||
1626 | return A; | |||
1627 | } | |||
1628 | ||||
1629 | CFConsumedAttr(SourceRange R, ASTContext &Ctx | |||
1630 | , unsigned SI | |||
1631 | ) | |||
1632 | : InheritableParamAttr(attr::CFConsumed, R, SI, false, false) | |||
1633 | { | |||
1634 | } | |||
1635 | ||||
1636 | CFConsumedAttr *clone(ASTContext &C) const; | |||
1637 | void printPretty(raw_ostream &OS, | |||
1638 | const PrintingPolicy &Policy) const; | |||
1639 | const char *getSpelling() const; | |||
1640 | ||||
1641 | ||||
1642 | static bool classof(const Attr *A) { return A->getKind() == attr::CFConsumed; } | |||
1643 | }; | |||
1644 | ||||
1645 | class CFReturnsNotRetainedAttr : public InheritableAttr { | |||
1646 | public: | |||
1647 | static CFReturnsNotRetainedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1648 | auto *A = new (Ctx) CFReturnsNotRetainedAttr(Loc, Ctx, 0); | |||
1649 | A->setImplicit(true); | |||
1650 | return A; | |||
1651 | } | |||
1652 | ||||
1653 | CFReturnsNotRetainedAttr(SourceRange R, ASTContext &Ctx | |||
1654 | , unsigned SI | |||
1655 | ) | |||
1656 | : InheritableAttr(attr::CFReturnsNotRetained, R, SI, false, false) | |||
1657 | { | |||
1658 | } | |||
1659 | ||||
1660 | CFReturnsNotRetainedAttr *clone(ASTContext &C) const; | |||
1661 | void printPretty(raw_ostream &OS, | |||
1662 | const PrintingPolicy &Policy) const; | |||
1663 | const char *getSpelling() const; | |||
1664 | ||||
1665 | ||||
1666 | static bool classof(const Attr *A) { return A->getKind() == attr::CFReturnsNotRetained; } | |||
1667 | }; | |||
1668 | ||||
1669 | class CFReturnsRetainedAttr : public InheritableAttr { | |||
1670 | public: | |||
1671 | static CFReturnsRetainedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1672 | auto *A = new (Ctx) CFReturnsRetainedAttr(Loc, Ctx, 0); | |||
1673 | A->setImplicit(true); | |||
1674 | return A; | |||
1675 | } | |||
1676 | ||||
1677 | CFReturnsRetainedAttr(SourceRange R, ASTContext &Ctx | |||
1678 | , unsigned SI | |||
1679 | ) | |||
1680 | : InheritableAttr(attr::CFReturnsRetained, R, SI, false, false) | |||
1681 | { | |||
1682 | } | |||
1683 | ||||
1684 | CFReturnsRetainedAttr *clone(ASTContext &C) const; | |||
1685 | void printPretty(raw_ostream &OS, | |||
1686 | const PrintingPolicy &Policy) const; | |||
1687 | const char *getSpelling() const; | |||
1688 | ||||
1689 | ||||
1690 | static bool classof(const Attr *A) { return A->getKind() == attr::CFReturnsRetained; } | |||
1691 | }; | |||
1692 | ||||
1693 | class CFUnknownTransferAttr : public InheritableAttr { | |||
1694 | public: | |||
1695 | static CFUnknownTransferAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1696 | auto *A = new (Ctx) CFUnknownTransferAttr(Loc, Ctx, 0); | |||
1697 | A->setImplicit(true); | |||
1698 | return A; | |||
1699 | } | |||
1700 | ||||
1701 | CFUnknownTransferAttr(SourceRange R, ASTContext &Ctx | |||
1702 | , unsigned SI | |||
1703 | ) | |||
1704 | : InheritableAttr(attr::CFUnknownTransfer, R, SI, false, false) | |||
1705 | { | |||
1706 | } | |||
1707 | ||||
1708 | CFUnknownTransferAttr *clone(ASTContext &C) const; | |||
1709 | void printPretty(raw_ostream &OS, | |||
1710 | const PrintingPolicy &Policy) const; | |||
1711 | const char *getSpelling() const; | |||
1712 | ||||
1713 | ||||
1714 | static bool classof(const Attr *A) { return A->getKind() == attr::CFUnknownTransfer; } | |||
1715 | }; | |||
1716 | ||||
1717 | class CUDAConstantAttr : public InheritableAttr { | |||
1718 | public: | |||
1719 | static CUDAConstantAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1720 | auto *A = new (Ctx) CUDAConstantAttr(Loc, Ctx, 0); | |||
1721 | A->setImplicit(true); | |||
1722 | return A; | |||
1723 | } | |||
1724 | ||||
1725 | CUDAConstantAttr(SourceRange R, ASTContext &Ctx | |||
1726 | , unsigned SI | |||
1727 | ) | |||
1728 | : InheritableAttr(attr::CUDAConstant, R, SI, false, false) | |||
1729 | { | |||
1730 | } | |||
1731 | ||||
1732 | CUDAConstantAttr *clone(ASTContext &C) const; | |||
1733 | void printPretty(raw_ostream &OS, | |||
1734 | const PrintingPolicy &Policy) const; | |||
1735 | const char *getSpelling() const; | |||
1736 | ||||
1737 | ||||
1738 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDAConstant; } | |||
1739 | }; | |||
1740 | ||||
1741 | class CUDADeviceAttr : public InheritableAttr { | |||
1742 | public: | |||
1743 | static CUDADeviceAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1744 | auto *A = new (Ctx) CUDADeviceAttr(Loc, Ctx, 0); | |||
1745 | A->setImplicit(true); | |||
1746 | return A; | |||
1747 | } | |||
1748 | ||||
1749 | CUDADeviceAttr(SourceRange R, ASTContext &Ctx | |||
1750 | , unsigned SI | |||
1751 | ) | |||
1752 | : InheritableAttr(attr::CUDADevice, R, SI, false, false) | |||
1753 | { | |||
1754 | } | |||
1755 | ||||
1756 | CUDADeviceAttr *clone(ASTContext &C) const; | |||
1757 | void printPretty(raw_ostream &OS, | |||
1758 | const PrintingPolicy &Policy) const; | |||
1759 | const char *getSpelling() const; | |||
1760 | ||||
1761 | ||||
1762 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDADevice; } | |||
1763 | }; | |||
1764 | ||||
1765 | class CUDAGlobalAttr : public InheritableAttr { | |||
1766 | public: | |||
1767 | static CUDAGlobalAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1768 | auto *A = new (Ctx) CUDAGlobalAttr(Loc, Ctx, 0); | |||
1769 | A->setImplicit(true); | |||
1770 | return A; | |||
1771 | } | |||
1772 | ||||
1773 | CUDAGlobalAttr(SourceRange R, ASTContext &Ctx | |||
1774 | , unsigned SI | |||
1775 | ) | |||
1776 | : InheritableAttr(attr::CUDAGlobal, R, SI, false, false) | |||
1777 | { | |||
1778 | } | |||
1779 | ||||
1780 | CUDAGlobalAttr *clone(ASTContext &C) const; | |||
1781 | void printPretty(raw_ostream &OS, | |||
1782 | const PrintingPolicy &Policy) const; | |||
1783 | const char *getSpelling() const; | |||
1784 | ||||
1785 | ||||
1786 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDAGlobal; } | |||
1787 | }; | |||
1788 | ||||
1789 | class CUDAHostAttr : public InheritableAttr { | |||
1790 | public: | |||
1791 | static CUDAHostAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1792 | auto *A = new (Ctx) CUDAHostAttr(Loc, Ctx, 0); | |||
1793 | A->setImplicit(true); | |||
1794 | return A; | |||
1795 | } | |||
1796 | ||||
1797 | CUDAHostAttr(SourceRange R, ASTContext &Ctx | |||
1798 | , unsigned SI | |||
1799 | ) | |||
1800 | : InheritableAttr(attr::CUDAHost, R, SI, false, false) | |||
1801 | { | |||
1802 | } | |||
1803 | ||||
1804 | CUDAHostAttr *clone(ASTContext &C) const; | |||
1805 | void printPretty(raw_ostream &OS, | |||
1806 | const PrintingPolicy &Policy) const; | |||
1807 | const char *getSpelling() const; | |||
1808 | ||||
1809 | ||||
1810 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDAHost; } | |||
1811 | }; | |||
1812 | ||||
1813 | class CUDAInvalidTargetAttr : public InheritableAttr { | |||
1814 | public: | |||
1815 | static CUDAInvalidTargetAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1816 | auto *A = new (Ctx) CUDAInvalidTargetAttr(Loc, Ctx, 0); | |||
1817 | A->setImplicit(true); | |||
1818 | return A; | |||
1819 | } | |||
1820 | ||||
1821 | CUDAInvalidTargetAttr(SourceRange R, ASTContext &Ctx | |||
1822 | , unsigned SI | |||
1823 | ) | |||
1824 | : InheritableAttr(attr::CUDAInvalidTarget, R, SI, false, false) | |||
1825 | { | |||
1826 | } | |||
1827 | ||||
1828 | CUDAInvalidTargetAttr *clone(ASTContext &C) const; | |||
1829 | void printPretty(raw_ostream &OS, | |||
1830 | const PrintingPolicy &Policy) const; | |||
1831 | const char *getSpelling() const; | |||
1832 | ||||
1833 | ||||
1834 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDAInvalidTarget; } | |||
1835 | }; | |||
1836 | ||||
1837 | class CUDALaunchBoundsAttr : public InheritableAttr { | |||
1838 | Expr * maxThreads; | |||
1839 | ||||
1840 | Expr * minBlocks; | |||
1841 | ||||
1842 | public: | |||
1843 | static CUDALaunchBoundsAttr *CreateImplicit(ASTContext &Ctx, Expr * MaxThreads, Expr * MinBlocks, SourceRange Loc = SourceRange()) { | |||
1844 | auto *A = new (Ctx) CUDALaunchBoundsAttr(Loc, Ctx, MaxThreads, MinBlocks, 0); | |||
1845 | A->setImplicit(true); | |||
1846 | return A; | |||
1847 | } | |||
1848 | ||||
1849 | CUDALaunchBoundsAttr(SourceRange R, ASTContext &Ctx | |||
1850 | , Expr * MaxThreads | |||
1851 | , Expr * MinBlocks | |||
1852 | , unsigned SI | |||
1853 | ) | |||
1854 | : InheritableAttr(attr::CUDALaunchBounds, R, SI, false, false) | |||
1855 | , maxThreads(MaxThreads) | |||
1856 | , minBlocks(MinBlocks) | |||
1857 | { | |||
1858 | } | |||
1859 | ||||
1860 | CUDALaunchBoundsAttr(SourceRange R, ASTContext &Ctx | |||
1861 | , Expr * MaxThreads | |||
1862 | , unsigned SI | |||
1863 | ) | |||
1864 | : InheritableAttr(attr::CUDALaunchBounds, R, SI, false, false) | |||
1865 | , maxThreads(MaxThreads) | |||
1866 | , minBlocks() | |||
1867 | { | |||
1868 | } | |||
1869 | ||||
1870 | CUDALaunchBoundsAttr *clone(ASTContext &C) const; | |||
1871 | void printPretty(raw_ostream &OS, | |||
1872 | const PrintingPolicy &Policy) const; | |||
1873 | const char *getSpelling() const; | |||
1874 | Expr * getMaxThreads() const { | |||
1875 | return maxThreads; | |||
1876 | } | |||
1877 | ||||
1878 | Expr * getMinBlocks() const { | |||
1879 | return minBlocks; | |||
1880 | } | |||
1881 | ||||
1882 | ||||
1883 | ||||
1884 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDALaunchBounds; } | |||
1885 | }; | |||
1886 | ||||
1887 | class CUDASharedAttr : public InheritableAttr { | |||
1888 | public: | |||
1889 | static CUDASharedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1890 | auto *A = new (Ctx) CUDASharedAttr(Loc, Ctx, 0); | |||
1891 | A->setImplicit(true); | |||
1892 | return A; | |||
1893 | } | |||
1894 | ||||
1895 | CUDASharedAttr(SourceRange R, ASTContext &Ctx | |||
1896 | , unsigned SI | |||
1897 | ) | |||
1898 | : InheritableAttr(attr::CUDAShared, R, SI, false, false) | |||
1899 | { | |||
1900 | } | |||
1901 | ||||
1902 | CUDASharedAttr *clone(ASTContext &C) const; | |||
1903 | void printPretty(raw_ostream &OS, | |||
1904 | const PrintingPolicy &Policy) const; | |||
1905 | const char *getSpelling() const; | |||
1906 | ||||
1907 | ||||
1908 | static bool classof(const Attr *A) { return A->getKind() == attr::CUDAShared; } | |||
1909 | }; | |||
1910 | ||||
1911 | class CXX11NoReturnAttr : public InheritableAttr { | |||
1912 | public: | |||
1913 | static CXX11NoReturnAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
1914 | auto *A = new (Ctx) CXX11NoReturnAttr(Loc, Ctx, 0); | |||
1915 | A->setImplicit(true); | |||
1916 | return A; | |||
1917 | } | |||
1918 | ||||
1919 | CXX11NoReturnAttr(SourceRange R, ASTContext &Ctx | |||
1920 | , unsigned SI | |||
1921 | ) | |||
1922 | : InheritableAttr(attr::CXX11NoReturn, R, SI, false, false) | |||
1923 | { | |||
1924 | } | |||
1925 | ||||
1926 | CXX11NoReturnAttr *clone(ASTContext &C) const; | |||
1927 | void printPretty(raw_ostream &OS, | |||
1928 | const PrintingPolicy &Policy) const; | |||
1929 | const char *getSpelling() const; | |||
1930 | ||||
1931 | ||||
1932 | static bool classof(const Attr *A) { return A->getKind() == attr::CXX11NoReturn; } | |||
1933 | }; | |||
1934 | ||||
1935 | class CallableWhenAttr : public InheritableAttr { | |||
1936 | public: | |||
1937 | enum ConsumedState { | |||
1938 | Unknown, | |||
1939 | Consumed, | |||
1940 | Unconsumed | |||
1941 | }; | |||
1942 | private: | |||
1943 | unsigned callableStates_Size; | |||
1944 | ConsumedState *callableStates_; | |||
1945 | ||||
1946 | public: | |||
1947 | static CallableWhenAttr *CreateImplicit(ASTContext &Ctx, ConsumedState *CallableStates, unsigned CallableStatesSize, SourceRange Loc = SourceRange()) { | |||
1948 | auto *A = new (Ctx) CallableWhenAttr(Loc, Ctx, CallableStates, CallableStatesSize, 0); | |||
1949 | A->setImplicit(true); | |||
1950 | return A; | |||
1951 | } | |||
1952 | ||||
1953 | CallableWhenAttr(SourceRange R, ASTContext &Ctx | |||
1954 | , ConsumedState *CallableStates, unsigned CallableStatesSize | |||
1955 | , unsigned SI | |||
1956 | ) | |||
1957 | : InheritableAttr(attr::CallableWhen, R, SI, false, false) | |||
1958 | , callableStates_Size(CallableStatesSize), callableStates_(new (Ctx, 16) ConsumedState[callableStates_Size]) | |||
1959 | { | |||
1960 | std::copy(CallableStates, CallableStates + callableStates_Size, callableStates_); | |||
1961 | } | |||
1962 | ||||
1963 | CallableWhenAttr(SourceRange R, ASTContext &Ctx | |||
1964 | , unsigned SI | |||
1965 | ) | |||
1966 | : InheritableAttr(attr::CallableWhen, R, SI, false, false) | |||
1967 | , callableStates_Size(0), callableStates_(nullptr) | |||
1968 | { | |||
1969 | } | |||
1970 | ||||
1971 | CallableWhenAttr *clone(ASTContext &C) const; | |||
1972 | void printPretty(raw_ostream &OS, | |||
1973 | const PrintingPolicy &Policy) const; | |||
1974 | const char *getSpelling() const; | |||
1975 | typedef ConsumedState* callableStates_iterator; | |||
1976 | callableStates_iterator callableStates_begin() const { return callableStates_; } | |||
1977 | callableStates_iterator callableStates_end() const { return callableStates_ + callableStates_Size; } | |||
1978 | unsigned callableStates_size() const { return callableStates_Size; } | |||
1979 | llvm::iterator_range<callableStates_iterator> callableStates() const { return llvm::make_range(callableStates_begin(), callableStates_end()); } | |||
1980 | ||||
1981 | ||||
1982 | static bool ConvertStrToConsumedState(StringRef Val, ConsumedState &Out) { | |||
1983 | Optional<ConsumedState> R = llvm::StringSwitch<Optional<ConsumedState>>(Val) | |||
1984 | .Case("unknown", CallableWhenAttr::Unknown) | |||
1985 | .Case("consumed", CallableWhenAttr::Consumed) | |||
1986 | .Case("unconsumed", CallableWhenAttr::Unconsumed) | |||
1987 | .Default(Optional<ConsumedState>()); | |||
1988 | if (R) { | |||
1989 | Out = *R; | |||
1990 | return true; | |||
1991 | } | |||
1992 | return false; | |||
1993 | } | |||
1994 | ||||
1995 | static const char *ConvertConsumedStateToStr(ConsumedState Val) { | |||
1996 | switch(Val) { | |||
1997 | case CallableWhenAttr::Unknown: return "unknown"; | |||
1998 | case CallableWhenAttr::Consumed: return "consumed"; | |||
1999 | case CallableWhenAttr::Unconsumed: return "unconsumed"; | |||
2000 | } | |||
2001 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 2001); | |||
2002 | } | |||
2003 | ||||
2004 | ||||
2005 | static bool classof(const Attr *A) { return A->getKind() == attr::CallableWhen; } | |||
2006 | }; | |||
2007 | ||||
2008 | class CapabilityAttr : public InheritableAttr { | |||
2009 | unsigned nameLength; | |||
2010 | char *name; | |||
2011 | ||||
2012 | public: | |||
2013 | enum Spelling { | |||
2014 | GNU_capability = 0, | |||
2015 | CXX11_clang_capability = 1, | |||
2016 | GNU_shared_capability = 2, | |||
2017 | CXX11_clang_shared_capability = 3 | |||
2018 | }; | |||
2019 | ||||
2020 | static CapabilityAttr *CreateImplicit(ASTContext &Ctx, Spelling S, llvm::StringRef Name, SourceRange Loc = SourceRange()) { | |||
2021 | auto *A = new (Ctx) CapabilityAttr(Loc, Ctx, Name, S); | |||
2022 | A->setImplicit(true); | |||
2023 | return A; | |||
2024 | } | |||
2025 | ||||
2026 | CapabilityAttr(SourceRange R, ASTContext &Ctx | |||
2027 | , llvm::StringRef Name | |||
2028 | , unsigned SI | |||
2029 | ) | |||
2030 | : InheritableAttr(attr::Capability, R, SI, false, false) | |||
2031 | , nameLength(Name.size()),name(new (Ctx, 1) char[nameLength]) | |||
2032 | { | |||
2033 | if (!Name.empty()) | |||
2034 | std::memcpy(name, Name.data(), nameLength); | |||
2035 | } | |||
2036 | ||||
2037 | CapabilityAttr *clone(ASTContext &C) const; | |||
2038 | void printPretty(raw_ostream &OS, | |||
2039 | const PrintingPolicy &Policy) const; | |||
2040 | const char *getSpelling() const; | |||
2041 | Spelling getSemanticSpelling() const { | |||
2042 | switch (SpellingListIndex) { | |||
2043 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 2043); | |||
2044 | case 0: return GNU_capability; | |||
2045 | case 1: return CXX11_clang_capability; | |||
2046 | case 2: return GNU_shared_capability; | |||
2047 | case 3: return CXX11_clang_shared_capability; | |||
2048 | } | |||
2049 | } | |||
2050 | bool isShared() const { return SpellingListIndex == 2 || | |||
2051 | SpellingListIndex == 3; } | |||
2052 | llvm::StringRef getName() const { | |||
2053 | return llvm::StringRef(name, nameLength); | |||
2054 | } | |||
2055 | unsigned getNameLength() const { | |||
2056 | return nameLength; | |||
2057 | } | |||
2058 | void setName(ASTContext &C, llvm::StringRef S) { | |||
2059 | nameLength = S.size(); | |||
2060 | this->name = new (C, 1) char [nameLength]; | |||
2061 | if (!S.empty()) | |||
2062 | std::memcpy(this->name, S.data(), nameLength); | |||
2063 | } | |||
2064 | ||||
2065 | ||||
2066 | bool isMutex() const { return getName().equals_lower("mutex"); } | |||
2067 | bool isRole() const { return getName().equals_lower("role"); } | |||
2068 | ||||
2069 | ||||
2070 | static bool classof(const Attr *A) { return A->getKind() == attr::Capability; } | |||
2071 | }; | |||
2072 | ||||
2073 | class CapturedRecordAttr : public InheritableAttr { | |||
2074 | public: | |||
2075 | static CapturedRecordAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2076 | auto *A = new (Ctx) CapturedRecordAttr(Loc, Ctx, 0); | |||
2077 | A->setImplicit(true); | |||
2078 | return A; | |||
2079 | } | |||
2080 | ||||
2081 | CapturedRecordAttr(SourceRange R, ASTContext &Ctx | |||
2082 | , unsigned SI | |||
2083 | ) | |||
2084 | : InheritableAttr(attr::CapturedRecord, R, SI, false, false) | |||
2085 | { | |||
2086 | } | |||
2087 | ||||
2088 | CapturedRecordAttr *clone(ASTContext &C) const; | |||
2089 | void printPretty(raw_ostream &OS, | |||
2090 | const PrintingPolicy &Policy) const; | |||
2091 | const char *getSpelling() const; | |||
2092 | ||||
2093 | ||||
2094 | static bool classof(const Attr *A) { return A->getKind() == attr::CapturedRecord; } | |||
2095 | }; | |||
2096 | ||||
2097 | class CarriesDependencyAttr : public InheritableParamAttr { | |||
2098 | public: | |||
2099 | static CarriesDependencyAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2100 | auto *A = new (Ctx) CarriesDependencyAttr(Loc, Ctx, 0); | |||
2101 | A->setImplicit(true); | |||
2102 | return A; | |||
2103 | } | |||
2104 | ||||
2105 | CarriesDependencyAttr(SourceRange R, ASTContext &Ctx | |||
2106 | , unsigned SI | |||
2107 | ) | |||
2108 | : InheritableParamAttr(attr::CarriesDependency, R, SI, false, false) | |||
2109 | { | |||
2110 | } | |||
2111 | ||||
2112 | CarriesDependencyAttr *clone(ASTContext &C) const; | |||
2113 | void printPretty(raw_ostream &OS, | |||
2114 | const PrintingPolicy &Policy) const; | |||
2115 | const char *getSpelling() const; | |||
2116 | ||||
2117 | ||||
2118 | static bool classof(const Attr *A) { return A->getKind() == attr::CarriesDependency; } | |||
2119 | }; | |||
2120 | ||||
2121 | class CleanupAttr : public InheritableAttr { | |||
2122 | FunctionDecl * functionDecl; | |||
2123 | ||||
2124 | public: | |||
2125 | static CleanupAttr *CreateImplicit(ASTContext &Ctx, FunctionDecl * FunctionDecl, SourceRange Loc = SourceRange()) { | |||
2126 | auto *A = new (Ctx) CleanupAttr(Loc, Ctx, FunctionDecl, 0); | |||
2127 | A->setImplicit(true); | |||
2128 | return A; | |||
2129 | } | |||
2130 | ||||
2131 | CleanupAttr(SourceRange R, ASTContext &Ctx | |||
2132 | , FunctionDecl * FunctionDecl | |||
2133 | , unsigned SI | |||
2134 | ) | |||
2135 | : InheritableAttr(attr::Cleanup, R, SI, false, false) | |||
2136 | , functionDecl(FunctionDecl) | |||
2137 | { | |||
2138 | } | |||
2139 | ||||
2140 | CleanupAttr *clone(ASTContext &C) const; | |||
2141 | void printPretty(raw_ostream &OS, | |||
2142 | const PrintingPolicy &Policy) const; | |||
2143 | const char *getSpelling() const; | |||
2144 | FunctionDecl * getFunctionDecl() const { | |||
2145 | return functionDecl; | |||
2146 | } | |||
2147 | ||||
2148 | ||||
2149 | ||||
2150 | static bool classof(const Attr *A) { return A->getKind() == attr::Cleanup; } | |||
2151 | }; | |||
2152 | ||||
2153 | class ColdAttr : public InheritableAttr { | |||
2154 | public: | |||
2155 | static ColdAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2156 | auto *A = new (Ctx) ColdAttr(Loc, Ctx, 0); | |||
2157 | A->setImplicit(true); | |||
2158 | return A; | |||
2159 | } | |||
2160 | ||||
2161 | ColdAttr(SourceRange R, ASTContext &Ctx | |||
2162 | , unsigned SI | |||
2163 | ) | |||
2164 | : InheritableAttr(attr::Cold, R, SI, false, false) | |||
2165 | { | |||
2166 | } | |||
2167 | ||||
2168 | ColdAttr *clone(ASTContext &C) const; | |||
2169 | void printPretty(raw_ostream &OS, | |||
2170 | const PrintingPolicy &Policy) const; | |||
2171 | const char *getSpelling() const; | |||
2172 | ||||
2173 | ||||
2174 | static bool classof(const Attr *A) { return A->getKind() == attr::Cold; } | |||
2175 | }; | |||
2176 | ||||
2177 | class CommonAttr : public InheritableAttr { | |||
2178 | public: | |||
2179 | static CommonAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2180 | auto *A = new (Ctx) CommonAttr(Loc, Ctx, 0); | |||
2181 | A->setImplicit(true); | |||
2182 | return A; | |||
2183 | } | |||
2184 | ||||
2185 | CommonAttr(SourceRange R, ASTContext &Ctx | |||
2186 | , unsigned SI | |||
2187 | ) | |||
2188 | : InheritableAttr(attr::Common, R, SI, false, false) | |||
2189 | { | |||
2190 | } | |||
2191 | ||||
2192 | CommonAttr *clone(ASTContext &C) const; | |||
2193 | void printPretty(raw_ostream &OS, | |||
2194 | const PrintingPolicy &Policy) const; | |||
2195 | const char *getSpelling() const; | |||
2196 | ||||
2197 | ||||
2198 | static bool classof(const Attr *A) { return A->getKind() == attr::Common; } | |||
2199 | }; | |||
2200 | ||||
2201 | class ConstAttr : public InheritableAttr { | |||
2202 | public: | |||
2203 | static ConstAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2204 | auto *A = new (Ctx) ConstAttr(Loc, Ctx, 0); | |||
2205 | A->setImplicit(true); | |||
2206 | return A; | |||
2207 | } | |||
2208 | ||||
2209 | ConstAttr(SourceRange R, ASTContext &Ctx | |||
2210 | , unsigned SI | |||
2211 | ) | |||
2212 | : InheritableAttr(attr::Const, R, SI, false, false) | |||
2213 | { | |||
2214 | } | |||
2215 | ||||
2216 | ConstAttr *clone(ASTContext &C) const; | |||
2217 | void printPretty(raw_ostream &OS, | |||
2218 | const PrintingPolicy &Policy) const; | |||
2219 | const char *getSpelling() const; | |||
2220 | ||||
2221 | ||||
2222 | static bool classof(const Attr *A) { return A->getKind() == attr::Const; } | |||
2223 | }; | |||
2224 | ||||
2225 | class ConstructorAttr : public InheritableAttr { | |||
2226 | int priority; | |||
2227 | ||||
2228 | public: | |||
2229 | static ConstructorAttr *CreateImplicit(ASTContext &Ctx, int Priority, SourceRange Loc = SourceRange()) { | |||
2230 | auto *A = new (Ctx) ConstructorAttr(Loc, Ctx, Priority, 0); | |||
2231 | A->setImplicit(true); | |||
2232 | return A; | |||
2233 | } | |||
2234 | ||||
2235 | ConstructorAttr(SourceRange R, ASTContext &Ctx | |||
2236 | , int Priority | |||
2237 | , unsigned SI | |||
2238 | ) | |||
2239 | : InheritableAttr(attr::Constructor, R, SI, false, false) | |||
2240 | , priority(Priority) | |||
2241 | { | |||
2242 | } | |||
2243 | ||||
2244 | ConstructorAttr(SourceRange R, ASTContext &Ctx | |||
2245 | , unsigned SI | |||
2246 | ) | |||
2247 | : InheritableAttr(attr::Constructor, R, SI, false, false) | |||
2248 | , priority() | |||
2249 | { | |||
2250 | } | |||
2251 | ||||
2252 | ConstructorAttr *clone(ASTContext &C) const; | |||
2253 | void printPretty(raw_ostream &OS, | |||
2254 | const PrintingPolicy &Policy) const; | |||
2255 | const char *getSpelling() const; | |||
2256 | int getPriority() const { | |||
2257 | return priority; | |||
2258 | } | |||
2259 | ||||
2260 | static const int DefaultPriority = 65535; | |||
2261 | ||||
2262 | ||||
2263 | ||||
2264 | static bool classof(const Attr *A) { return A->getKind() == attr::Constructor; } | |||
2265 | }; | |||
2266 | ||||
2267 | class ConsumableAttr : public InheritableAttr { | |||
2268 | public: | |||
2269 | enum ConsumedState { | |||
2270 | Unknown, | |||
2271 | Consumed, | |||
2272 | Unconsumed | |||
2273 | }; | |||
2274 | private: | |||
2275 | ConsumedState defaultState; | |||
2276 | ||||
2277 | public: | |||
2278 | static ConsumableAttr *CreateImplicit(ASTContext &Ctx, ConsumedState DefaultState, SourceRange Loc = SourceRange()) { | |||
2279 | auto *A = new (Ctx) ConsumableAttr(Loc, Ctx, DefaultState, 0); | |||
2280 | A->setImplicit(true); | |||
2281 | return A; | |||
2282 | } | |||
2283 | ||||
2284 | ConsumableAttr(SourceRange R, ASTContext &Ctx | |||
2285 | , ConsumedState DefaultState | |||
2286 | , unsigned SI | |||
2287 | ) | |||
2288 | : InheritableAttr(attr::Consumable, R, SI, false, false) | |||
2289 | , defaultState(DefaultState) | |||
2290 | { | |||
2291 | } | |||
2292 | ||||
2293 | ConsumableAttr *clone(ASTContext &C) const; | |||
2294 | void printPretty(raw_ostream &OS, | |||
2295 | const PrintingPolicy &Policy) const; | |||
2296 | const char *getSpelling() const; | |||
2297 | ConsumedState getDefaultState() const { | |||
2298 | return defaultState; | |||
2299 | } | |||
2300 | ||||
2301 | static bool ConvertStrToConsumedState(StringRef Val, ConsumedState &Out) { | |||
2302 | Optional<ConsumedState> R = llvm::StringSwitch<Optional<ConsumedState>>(Val) | |||
2303 | .Case("unknown", ConsumableAttr::Unknown) | |||
2304 | .Case("consumed", ConsumableAttr::Consumed) | |||
2305 | .Case("unconsumed", ConsumableAttr::Unconsumed) | |||
2306 | .Default(Optional<ConsumedState>()); | |||
2307 | if (R) { | |||
2308 | Out = *R; | |||
2309 | return true; | |||
2310 | } | |||
2311 | return false; | |||
2312 | } | |||
2313 | ||||
2314 | static const char *ConvertConsumedStateToStr(ConsumedState Val) { | |||
2315 | switch(Val) { | |||
2316 | case ConsumableAttr::Unknown: return "unknown"; | |||
2317 | case ConsumableAttr::Consumed: return "consumed"; | |||
2318 | case ConsumableAttr::Unconsumed: return "unconsumed"; | |||
2319 | } | |||
2320 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 2320); | |||
2321 | } | |||
2322 | ||||
2323 | ||||
2324 | static bool classof(const Attr *A) { return A->getKind() == attr::Consumable; } | |||
2325 | }; | |||
2326 | ||||
2327 | class ConsumableAutoCastAttr : public InheritableAttr { | |||
2328 | public: | |||
2329 | static ConsumableAutoCastAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2330 | auto *A = new (Ctx) ConsumableAutoCastAttr(Loc, Ctx, 0); | |||
2331 | A->setImplicit(true); | |||
2332 | return A; | |||
2333 | } | |||
2334 | ||||
2335 | ConsumableAutoCastAttr(SourceRange R, ASTContext &Ctx | |||
2336 | , unsigned SI | |||
2337 | ) | |||
2338 | : InheritableAttr(attr::ConsumableAutoCast, R, SI, false, false) | |||
2339 | { | |||
2340 | } | |||
2341 | ||||
2342 | ConsumableAutoCastAttr *clone(ASTContext &C) const; | |||
2343 | void printPretty(raw_ostream &OS, | |||
2344 | const PrintingPolicy &Policy) const; | |||
2345 | const char *getSpelling() const; | |||
2346 | ||||
2347 | ||||
2348 | static bool classof(const Attr *A) { return A->getKind() == attr::ConsumableAutoCast; } | |||
2349 | }; | |||
2350 | ||||
2351 | class ConsumableSetOnReadAttr : public InheritableAttr { | |||
2352 | public: | |||
2353 | static ConsumableSetOnReadAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2354 | auto *A = new (Ctx) ConsumableSetOnReadAttr(Loc, Ctx, 0); | |||
2355 | A->setImplicit(true); | |||
2356 | return A; | |||
2357 | } | |||
2358 | ||||
2359 | ConsumableSetOnReadAttr(SourceRange R, ASTContext &Ctx | |||
2360 | , unsigned SI | |||
2361 | ) | |||
2362 | : InheritableAttr(attr::ConsumableSetOnRead, R, SI, false, false) | |||
2363 | { | |||
2364 | } | |||
2365 | ||||
2366 | ConsumableSetOnReadAttr *clone(ASTContext &C) const; | |||
2367 | void printPretty(raw_ostream &OS, | |||
2368 | const PrintingPolicy &Policy) const; | |||
2369 | const char *getSpelling() const; | |||
2370 | ||||
2371 | ||||
2372 | static bool classof(const Attr *A) { return A->getKind() == attr::ConsumableSetOnRead; } | |||
2373 | }; | |||
2374 | ||||
2375 | class ConvergentAttr : public InheritableAttr { | |||
2376 | public: | |||
2377 | static ConvergentAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2378 | auto *A = new (Ctx) ConvergentAttr(Loc, Ctx, 0); | |||
2379 | A->setImplicit(true); | |||
2380 | return A; | |||
2381 | } | |||
2382 | ||||
2383 | ConvergentAttr(SourceRange R, ASTContext &Ctx | |||
2384 | , unsigned SI | |||
2385 | ) | |||
2386 | : InheritableAttr(attr::Convergent, R, SI, false, false) | |||
2387 | { | |||
2388 | } | |||
2389 | ||||
2390 | ConvergentAttr *clone(ASTContext &C) const; | |||
2391 | void printPretty(raw_ostream &OS, | |||
2392 | const PrintingPolicy &Policy) const; | |||
2393 | const char *getSpelling() const; | |||
2394 | ||||
2395 | ||||
2396 | static bool classof(const Attr *A) { return A->getKind() == attr::Convergent; } | |||
2397 | }; | |||
2398 | ||||
2399 | class DLLExportAttr : public InheritableAttr { | |||
2400 | public: | |||
2401 | static DLLExportAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2402 | auto *A = new (Ctx) DLLExportAttr(Loc, Ctx, 0); | |||
2403 | A->setImplicit(true); | |||
2404 | return A; | |||
2405 | } | |||
2406 | ||||
2407 | DLLExportAttr(SourceRange R, ASTContext &Ctx | |||
2408 | , unsigned SI | |||
2409 | ) | |||
2410 | : InheritableAttr(attr::DLLExport, R, SI, false, false) | |||
2411 | { | |||
2412 | } | |||
2413 | ||||
2414 | DLLExportAttr *clone(ASTContext &C) const; | |||
2415 | void printPretty(raw_ostream &OS, | |||
2416 | const PrintingPolicy &Policy) const; | |||
2417 | const char *getSpelling() const; | |||
2418 | ||||
2419 | ||||
2420 | static bool classof(const Attr *A) { return A->getKind() == attr::DLLExport; } | |||
2421 | }; | |||
2422 | ||||
2423 | class DLLImportAttr : public InheritableAttr { | |||
2424 | public: | |||
2425 | static DLLImportAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2426 | auto *A = new (Ctx) DLLImportAttr(Loc, Ctx, 0); | |||
2427 | A->setImplicit(true); | |||
2428 | return A; | |||
2429 | } | |||
2430 | ||||
2431 | DLLImportAttr(SourceRange R, ASTContext &Ctx | |||
2432 | , unsigned SI | |||
2433 | ) | |||
2434 | : InheritableAttr(attr::DLLImport, R, SI, false, false) | |||
2435 | { | |||
2436 | } | |||
2437 | ||||
2438 | DLLImportAttr *clone(ASTContext &C) const; | |||
2439 | void printPretty(raw_ostream &OS, | |||
2440 | const PrintingPolicy &Policy) const; | |||
2441 | const char *getSpelling() const; | |||
2442 | ||||
2443 | ||||
2444 | static bool classof(const Attr *A) { return A->getKind() == attr::DLLImport; } | |||
2445 | }; | |||
2446 | ||||
2447 | class DeprecatedAttr : public InheritableAttr { | |||
2448 | unsigned messageLength; | |||
2449 | char *message; | |||
2450 | ||||
2451 | unsigned replacementLength; | |||
2452 | char *replacement; | |||
2453 | ||||
2454 | public: | |||
2455 | static DeprecatedAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Message, llvm::StringRef Replacement, SourceRange Loc = SourceRange()) { | |||
2456 | auto *A = new (Ctx) DeprecatedAttr(Loc, Ctx, Message, Replacement, 0); | |||
2457 | A->setImplicit(true); | |||
2458 | return A; | |||
2459 | } | |||
2460 | ||||
2461 | DeprecatedAttr(SourceRange R, ASTContext &Ctx | |||
2462 | , llvm::StringRef Message | |||
2463 | , llvm::StringRef Replacement | |||
2464 | , unsigned SI | |||
2465 | ) | |||
2466 | : InheritableAttr(attr::Deprecated, R, SI, false, false) | |||
2467 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
2468 | , replacementLength(Replacement.size()),replacement(new (Ctx, 1) char[replacementLength]) | |||
2469 | { | |||
2470 | if (!Message.empty()) | |||
2471 | std::memcpy(message, Message.data(), messageLength); | |||
2472 | if (!Replacement.empty()) | |||
2473 | std::memcpy(replacement, Replacement.data(), replacementLength); | |||
2474 | } | |||
2475 | ||||
2476 | DeprecatedAttr(SourceRange R, ASTContext &Ctx | |||
2477 | , unsigned SI | |||
2478 | ) | |||
2479 | : InheritableAttr(attr::Deprecated, R, SI, false, false) | |||
2480 | , messageLength(0),message(nullptr) | |||
2481 | , replacementLength(0),replacement(nullptr) | |||
2482 | { | |||
2483 | } | |||
2484 | ||||
2485 | DeprecatedAttr *clone(ASTContext &C) const; | |||
2486 | void printPretty(raw_ostream &OS, | |||
2487 | const PrintingPolicy &Policy) const; | |||
2488 | const char *getSpelling() const; | |||
2489 | llvm::StringRef getMessage() const { | |||
2490 | return llvm::StringRef(message, messageLength); | |||
2491 | } | |||
2492 | unsigned getMessageLength() const { | |||
2493 | return messageLength; | |||
2494 | } | |||
2495 | void setMessage(ASTContext &C, llvm::StringRef S) { | |||
2496 | messageLength = S.size(); | |||
2497 | this->message = new (C, 1) char [messageLength]; | |||
2498 | if (!S.empty()) | |||
2499 | std::memcpy(this->message, S.data(), messageLength); | |||
2500 | } | |||
2501 | ||||
2502 | llvm::StringRef getReplacement() const { | |||
2503 | return llvm::StringRef(replacement, replacementLength); | |||
2504 | } | |||
2505 | unsigned getReplacementLength() const { | |||
2506 | return replacementLength; | |||
2507 | } | |||
2508 | void setReplacement(ASTContext &C, llvm::StringRef S) { | |||
2509 | replacementLength = S.size(); | |||
2510 | this->replacement = new (C, 1) char [replacementLength]; | |||
2511 | if (!S.empty()) | |||
2512 | std::memcpy(this->replacement, S.data(), replacementLength); | |||
2513 | } | |||
2514 | ||||
2515 | ||||
2516 | ||||
2517 | static bool classof(const Attr *A) { return A->getKind() == attr::Deprecated; } | |||
2518 | }; | |||
2519 | ||||
2520 | class DestructorAttr : public InheritableAttr { | |||
2521 | int priority; | |||
2522 | ||||
2523 | public: | |||
2524 | static DestructorAttr *CreateImplicit(ASTContext &Ctx, int Priority, SourceRange Loc = SourceRange()) { | |||
2525 | auto *A = new (Ctx) DestructorAttr(Loc, Ctx, Priority, 0); | |||
2526 | A->setImplicit(true); | |||
2527 | return A; | |||
2528 | } | |||
2529 | ||||
2530 | DestructorAttr(SourceRange R, ASTContext &Ctx | |||
2531 | , int Priority | |||
2532 | , unsigned SI | |||
2533 | ) | |||
2534 | : InheritableAttr(attr::Destructor, R, SI, false, false) | |||
2535 | , priority(Priority) | |||
2536 | { | |||
2537 | } | |||
2538 | ||||
2539 | DestructorAttr(SourceRange R, ASTContext &Ctx | |||
2540 | , unsigned SI | |||
2541 | ) | |||
2542 | : InheritableAttr(attr::Destructor, R, SI, false, false) | |||
2543 | , priority() | |||
2544 | { | |||
2545 | } | |||
2546 | ||||
2547 | DestructorAttr *clone(ASTContext &C) const; | |||
2548 | void printPretty(raw_ostream &OS, | |||
2549 | const PrintingPolicy &Policy) const; | |||
2550 | const char *getSpelling() const; | |||
2551 | int getPriority() const { | |||
2552 | return priority; | |||
2553 | } | |||
2554 | ||||
2555 | static const int DefaultPriority = 65535; | |||
2556 | ||||
2557 | ||||
2558 | ||||
2559 | static bool classof(const Attr *A) { return A->getKind() == attr::Destructor; } | |||
2560 | }; | |||
2561 | ||||
2562 | class DiagnoseIfAttr : public InheritableAttr { | |||
2563 | Expr * cond; | |||
2564 | ||||
2565 | unsigned messageLength; | |||
2566 | char *message; | |||
2567 | ||||
2568 | public: | |||
2569 | enum DiagnosticType { | |||
2570 | DT_Error, | |||
2571 | DT_Warning | |||
2572 | }; | |||
2573 | private: | |||
2574 | DiagnosticType diagnosticType; | |||
2575 | ||||
2576 | bool argDependent; | |||
2577 | ||||
2578 | NamedDecl * parent; | |||
2579 | ||||
2580 | public: | |||
2581 | static DiagnoseIfAttr *CreateImplicit(ASTContext &Ctx, Expr * Cond, llvm::StringRef Message, DiagnosticType DiagnosticType, bool ArgDependent, NamedDecl * Parent, SourceRange Loc = SourceRange()) { | |||
2582 | auto *A = new (Ctx) DiagnoseIfAttr(Loc, Ctx, Cond, Message, DiagnosticType, ArgDependent, Parent, 0); | |||
2583 | A->setImplicit(true); | |||
2584 | return A; | |||
2585 | } | |||
2586 | ||||
2587 | static DiagnoseIfAttr *CreateImplicit(ASTContext &Ctx, Expr * Cond, llvm::StringRef Message, DiagnosticType DiagnosticType, SourceRange Loc = SourceRange()) { | |||
2588 | auto *A = new (Ctx) DiagnoseIfAttr(Loc, Ctx, Cond, Message, DiagnosticType, 0); | |||
2589 | A->setImplicit(true); | |||
2590 | return A; | |||
2591 | } | |||
2592 | ||||
2593 | DiagnoseIfAttr(SourceRange R, ASTContext &Ctx | |||
2594 | , Expr * Cond | |||
2595 | , llvm::StringRef Message | |||
2596 | , DiagnosticType DiagnosticType | |||
2597 | , bool ArgDependent | |||
2598 | , NamedDecl * Parent | |||
2599 | , unsigned SI | |||
2600 | ) | |||
2601 | : InheritableAttr(attr::DiagnoseIf, R, SI, true, true) | |||
2602 | , cond(Cond) | |||
2603 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
2604 | , diagnosticType(DiagnosticType) | |||
2605 | , argDependent(ArgDependent) | |||
2606 | , parent(Parent) | |||
2607 | { | |||
2608 | if (!Message.empty()) | |||
2609 | std::memcpy(message, Message.data(), messageLength); | |||
2610 | } | |||
2611 | ||||
2612 | DiagnoseIfAttr(SourceRange R, ASTContext &Ctx | |||
2613 | , Expr * Cond | |||
2614 | , llvm::StringRef Message | |||
2615 | , DiagnosticType DiagnosticType | |||
2616 | , unsigned SI | |||
2617 | ) | |||
2618 | : InheritableAttr(attr::DiagnoseIf, R, SI, true, true) | |||
2619 | , cond(Cond) | |||
2620 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
2621 | , diagnosticType(DiagnosticType) | |||
2622 | , argDependent() | |||
2623 | , parent() | |||
2624 | { | |||
2625 | if (!Message.empty()) | |||
2626 | std::memcpy(message, Message.data(), messageLength); | |||
2627 | } | |||
2628 | ||||
2629 | DiagnoseIfAttr *clone(ASTContext &C) const; | |||
2630 | void printPretty(raw_ostream &OS, | |||
2631 | const PrintingPolicy &Policy) const; | |||
2632 | const char *getSpelling() const; | |||
2633 | Expr * getCond() const { | |||
2634 | return cond; | |||
2635 | } | |||
2636 | ||||
2637 | llvm::StringRef getMessage() const { | |||
2638 | return llvm::StringRef(message, messageLength); | |||
2639 | } | |||
2640 | unsigned getMessageLength() const { | |||
2641 | return messageLength; | |||
2642 | } | |||
2643 | void setMessage(ASTContext &C, llvm::StringRef S) { | |||
2644 | messageLength = S.size(); | |||
2645 | this->message = new (C, 1) char [messageLength]; | |||
2646 | if (!S.empty()) | |||
2647 | std::memcpy(this->message, S.data(), messageLength); | |||
2648 | } | |||
2649 | ||||
2650 | DiagnosticType getDiagnosticType() const { | |||
2651 | return diagnosticType; | |||
2652 | } | |||
2653 | ||||
2654 | static bool ConvertStrToDiagnosticType(StringRef Val, DiagnosticType &Out) { | |||
2655 | Optional<DiagnosticType> R = llvm::StringSwitch<Optional<DiagnosticType>>(Val) | |||
2656 | .Case("error", DiagnoseIfAttr::DT_Error) | |||
2657 | .Case("warning", DiagnoseIfAttr::DT_Warning) | |||
2658 | .Default(Optional<DiagnosticType>()); | |||
2659 | if (R) { | |||
2660 | Out = *R; | |||
2661 | return true; | |||
2662 | } | |||
2663 | return false; | |||
2664 | } | |||
2665 | ||||
2666 | static const char *ConvertDiagnosticTypeToStr(DiagnosticType Val) { | |||
2667 | switch(Val) { | |||
2668 | case DiagnoseIfAttr::DT_Error: return "error"; | |||
2669 | case DiagnoseIfAttr::DT_Warning: return "warning"; | |||
2670 | } | |||
2671 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 2671); | |||
2672 | } | |||
2673 | bool getArgDependent() const { | |||
2674 | return argDependent; | |||
2675 | } | |||
2676 | ||||
2677 | NamedDecl * getParent() const { | |||
2678 | return parent; | |||
2679 | } | |||
2680 | ||||
2681 | ||||
2682 | bool isError() const { return diagnosticType == DT_Error; } | |||
2683 | bool isWarning() const { return diagnosticType == DT_Warning; } | |||
2684 | ||||
2685 | ||||
2686 | static bool classof(const Attr *A) { return A->getKind() == attr::DiagnoseIf; } | |||
2687 | }; | |||
2688 | ||||
2689 | class DisableTailCallsAttr : public InheritableAttr { | |||
2690 | public: | |||
2691 | static DisableTailCallsAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2692 | auto *A = new (Ctx) DisableTailCallsAttr(Loc, Ctx, 0); | |||
2693 | A->setImplicit(true); | |||
2694 | return A; | |||
2695 | } | |||
2696 | ||||
2697 | DisableTailCallsAttr(SourceRange R, ASTContext &Ctx | |||
2698 | , unsigned SI | |||
2699 | ) | |||
2700 | : InheritableAttr(attr::DisableTailCalls, R, SI, false, false) | |||
2701 | { | |||
2702 | } | |||
2703 | ||||
2704 | DisableTailCallsAttr *clone(ASTContext &C) const; | |||
2705 | void printPretty(raw_ostream &OS, | |||
2706 | const PrintingPolicy &Policy) const; | |||
2707 | const char *getSpelling() const; | |||
2708 | ||||
2709 | ||||
2710 | static bool classof(const Attr *A) { return A->getKind() == attr::DisableTailCalls; } | |||
2711 | }; | |||
2712 | ||||
2713 | class EmptyBasesAttr : public InheritableAttr { | |||
2714 | public: | |||
2715 | static EmptyBasesAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2716 | auto *A = new (Ctx) EmptyBasesAttr(Loc, Ctx, 0); | |||
2717 | A->setImplicit(true); | |||
2718 | return A; | |||
2719 | } | |||
2720 | ||||
2721 | EmptyBasesAttr(SourceRange R, ASTContext &Ctx | |||
2722 | , unsigned SI | |||
2723 | ) | |||
2724 | : InheritableAttr(attr::EmptyBases, R, SI, false, false) | |||
2725 | { | |||
2726 | } | |||
2727 | ||||
2728 | EmptyBasesAttr *clone(ASTContext &C) const; | |||
2729 | void printPretty(raw_ostream &OS, | |||
2730 | const PrintingPolicy &Policy) const; | |||
2731 | const char *getSpelling() const; | |||
2732 | ||||
2733 | ||||
2734 | static bool classof(const Attr *A) { return A->getKind() == attr::EmptyBases; } | |||
2735 | }; | |||
2736 | ||||
2737 | class EnableIfAttr : public InheritableAttr { | |||
2738 | Expr * cond; | |||
2739 | ||||
2740 | unsigned messageLength; | |||
2741 | char *message; | |||
2742 | ||||
2743 | public: | |||
2744 | static EnableIfAttr *CreateImplicit(ASTContext &Ctx, Expr * Cond, llvm::StringRef Message, SourceRange Loc = SourceRange()) { | |||
2745 | auto *A = new (Ctx) EnableIfAttr(Loc, Ctx, Cond, Message, 0); | |||
2746 | A->setImplicit(true); | |||
2747 | return A; | |||
2748 | } | |||
2749 | ||||
2750 | EnableIfAttr(SourceRange R, ASTContext &Ctx | |||
2751 | , Expr * Cond | |||
2752 | , llvm::StringRef Message | |||
2753 | , unsigned SI | |||
2754 | ) | |||
2755 | : InheritableAttr(attr::EnableIf, R, SI, false, false) | |||
2756 | , cond(Cond) | |||
2757 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
2758 | { | |||
2759 | if (!Message.empty()) | |||
2760 | std::memcpy(message, Message.data(), messageLength); | |||
2761 | } | |||
2762 | ||||
2763 | EnableIfAttr *clone(ASTContext &C) const; | |||
2764 | void printPretty(raw_ostream &OS, | |||
2765 | const PrintingPolicy &Policy) const; | |||
2766 | const char *getSpelling() const; | |||
2767 | Expr * getCond() const { | |||
2768 | return cond; | |||
2769 | } | |||
2770 | ||||
2771 | llvm::StringRef getMessage() const { | |||
2772 | return llvm::StringRef(message, messageLength); | |||
2773 | } | |||
2774 | unsigned getMessageLength() const { | |||
2775 | return messageLength; | |||
2776 | } | |||
2777 | void setMessage(ASTContext &C, llvm::StringRef S) { | |||
2778 | messageLength = S.size(); | |||
2779 | this->message = new (C, 1) char [messageLength]; | |||
2780 | if (!S.empty()) | |||
2781 | std::memcpy(this->message, S.data(), messageLength); | |||
2782 | } | |||
2783 | ||||
2784 | ||||
2785 | ||||
2786 | static bool classof(const Attr *A) { return A->getKind() == attr::EnableIf; } | |||
2787 | }; | |||
2788 | ||||
2789 | class EnumExtensibilityAttr : public InheritableAttr { | |||
2790 | public: | |||
2791 | enum Kind { | |||
2792 | Closed, | |||
2793 | Open | |||
2794 | }; | |||
2795 | private: | |||
2796 | Kind extensibility; | |||
2797 | ||||
2798 | public: | |||
2799 | static EnumExtensibilityAttr *CreateImplicit(ASTContext &Ctx, Kind Extensibility, SourceRange Loc = SourceRange()) { | |||
2800 | auto *A = new (Ctx) EnumExtensibilityAttr(Loc, Ctx, Extensibility, 0); | |||
2801 | A->setImplicit(true); | |||
2802 | return A; | |||
2803 | } | |||
2804 | ||||
2805 | EnumExtensibilityAttr(SourceRange R, ASTContext &Ctx | |||
2806 | , Kind Extensibility | |||
2807 | , unsigned SI | |||
2808 | ) | |||
2809 | : InheritableAttr(attr::EnumExtensibility, R, SI, false, false) | |||
2810 | , extensibility(Extensibility) | |||
2811 | { | |||
2812 | } | |||
2813 | ||||
2814 | EnumExtensibilityAttr *clone(ASTContext &C) const; | |||
2815 | void printPretty(raw_ostream &OS, | |||
2816 | const PrintingPolicy &Policy) const; | |||
2817 | const char *getSpelling() const; | |||
2818 | Kind getExtensibility() const { | |||
2819 | return extensibility; | |||
2820 | } | |||
2821 | ||||
2822 | static bool ConvertStrToKind(StringRef Val, Kind &Out) { | |||
2823 | Optional<Kind> R = llvm::StringSwitch<Optional<Kind>>(Val) | |||
2824 | .Case("closed", EnumExtensibilityAttr::Closed) | |||
2825 | .Case("open", EnumExtensibilityAttr::Open) | |||
2826 | .Default(Optional<Kind>()); | |||
2827 | if (R) { | |||
2828 | Out = *R; | |||
2829 | return true; | |||
2830 | } | |||
2831 | return false; | |||
2832 | } | |||
2833 | ||||
2834 | static const char *ConvertKindToStr(Kind Val) { | |||
2835 | switch(Val) { | |||
2836 | case EnumExtensibilityAttr::Closed: return "closed"; | |||
2837 | case EnumExtensibilityAttr::Open: return "open"; | |||
2838 | } | |||
2839 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 2839); | |||
2840 | } | |||
2841 | ||||
2842 | ||||
2843 | static bool classof(const Attr *A) { return A->getKind() == attr::EnumExtensibility; } | |||
2844 | }; | |||
2845 | ||||
2846 | class ExclusiveTrylockFunctionAttr : public InheritableAttr { | |||
2847 | Expr * successValue; | |||
2848 | ||||
2849 | unsigned args_Size; | |||
2850 | Expr * *args_; | |||
2851 | ||||
2852 | public: | |||
2853 | static ExclusiveTrylockFunctionAttr *CreateImplicit(ASTContext &Ctx, Expr * SuccessValue, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
2854 | auto *A = new (Ctx) ExclusiveTrylockFunctionAttr(Loc, Ctx, SuccessValue, Args, ArgsSize, 0); | |||
2855 | A->setImplicit(true); | |||
2856 | return A; | |||
2857 | } | |||
2858 | ||||
2859 | ExclusiveTrylockFunctionAttr(SourceRange R, ASTContext &Ctx | |||
2860 | , Expr * SuccessValue | |||
2861 | , Expr * *Args, unsigned ArgsSize | |||
2862 | , unsigned SI | |||
2863 | ) | |||
2864 | : InheritableAttr(attr::ExclusiveTrylockFunction, R, SI, true, true) | |||
2865 | , successValue(SuccessValue) | |||
2866 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
2867 | { | |||
2868 | std::copy(Args, Args + args_Size, args_); | |||
2869 | } | |||
2870 | ||||
2871 | ExclusiveTrylockFunctionAttr(SourceRange R, ASTContext &Ctx | |||
2872 | , Expr * SuccessValue | |||
2873 | , unsigned SI | |||
2874 | ) | |||
2875 | : InheritableAttr(attr::ExclusiveTrylockFunction, R, SI, true, true) | |||
2876 | , successValue(SuccessValue) | |||
2877 | , args_Size(0), args_(nullptr) | |||
2878 | { | |||
2879 | } | |||
2880 | ||||
2881 | ExclusiveTrylockFunctionAttr *clone(ASTContext &C) const; | |||
2882 | void printPretty(raw_ostream &OS, | |||
2883 | const PrintingPolicy &Policy) const; | |||
2884 | const char *getSpelling() const; | |||
2885 | Expr * getSuccessValue() const { | |||
2886 | return successValue; | |||
2887 | } | |||
2888 | ||||
2889 | typedef Expr ** args_iterator; | |||
2890 | args_iterator args_begin() const { return args_; } | |||
2891 | args_iterator args_end() const { return args_ + args_Size; } | |||
2892 | unsigned args_size() const { return args_Size; } | |||
2893 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
2894 | ||||
2895 | ||||
2896 | ||||
2897 | ||||
2898 | static bool classof(const Attr *A) { return A->getKind() == attr::ExclusiveTrylockFunction; } | |||
2899 | }; | |||
2900 | ||||
2901 | class ExternalSourceSymbolAttr : public InheritableAttr { | |||
2902 | unsigned languageLength; | |||
2903 | char *language; | |||
2904 | ||||
2905 | unsigned definedInLength; | |||
2906 | char *definedIn; | |||
2907 | ||||
2908 | bool generatedDeclaration; | |||
2909 | ||||
2910 | public: | |||
2911 | static ExternalSourceSymbolAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Language, llvm::StringRef DefinedIn, bool GeneratedDeclaration, SourceRange Loc = SourceRange()) { | |||
2912 | auto *A = new (Ctx) ExternalSourceSymbolAttr(Loc, Ctx, Language, DefinedIn, GeneratedDeclaration, 0); | |||
2913 | A->setImplicit(true); | |||
2914 | return A; | |||
2915 | } | |||
2916 | ||||
2917 | ExternalSourceSymbolAttr(SourceRange R, ASTContext &Ctx | |||
2918 | , llvm::StringRef Language | |||
2919 | , llvm::StringRef DefinedIn | |||
2920 | , bool GeneratedDeclaration | |||
2921 | , unsigned SI | |||
2922 | ) | |||
2923 | : InheritableAttr(attr::ExternalSourceSymbol, R, SI, false, false) | |||
2924 | , languageLength(Language.size()),language(new (Ctx, 1) char[languageLength]) | |||
2925 | , definedInLength(DefinedIn.size()),definedIn(new (Ctx, 1) char[definedInLength]) | |||
2926 | , generatedDeclaration(GeneratedDeclaration) | |||
2927 | { | |||
2928 | if (!Language.empty()) | |||
2929 | std::memcpy(language, Language.data(), languageLength); | |||
2930 | if (!DefinedIn.empty()) | |||
2931 | std::memcpy(definedIn, DefinedIn.data(), definedInLength); | |||
2932 | } | |||
2933 | ||||
2934 | ExternalSourceSymbolAttr(SourceRange R, ASTContext &Ctx | |||
2935 | , unsigned SI | |||
2936 | ) | |||
2937 | : InheritableAttr(attr::ExternalSourceSymbol, R, SI, false, false) | |||
2938 | , languageLength(0),language(nullptr) | |||
2939 | , definedInLength(0),definedIn(nullptr) | |||
2940 | , generatedDeclaration() | |||
2941 | { | |||
2942 | } | |||
2943 | ||||
2944 | ExternalSourceSymbolAttr *clone(ASTContext &C) const; | |||
2945 | void printPretty(raw_ostream &OS, | |||
2946 | const PrintingPolicy &Policy) const; | |||
2947 | const char *getSpelling() const; | |||
2948 | llvm::StringRef getLanguage() const { | |||
2949 | return llvm::StringRef(language, languageLength); | |||
2950 | } | |||
2951 | unsigned getLanguageLength() const { | |||
2952 | return languageLength; | |||
2953 | } | |||
2954 | void setLanguage(ASTContext &C, llvm::StringRef S) { | |||
2955 | languageLength = S.size(); | |||
2956 | this->language = new (C, 1) char [languageLength]; | |||
2957 | if (!S.empty()) | |||
2958 | std::memcpy(this->language, S.data(), languageLength); | |||
2959 | } | |||
2960 | ||||
2961 | llvm::StringRef getDefinedIn() const { | |||
2962 | return llvm::StringRef(definedIn, definedInLength); | |||
2963 | } | |||
2964 | unsigned getDefinedInLength() const { | |||
2965 | return definedInLength; | |||
2966 | } | |||
2967 | void setDefinedIn(ASTContext &C, llvm::StringRef S) { | |||
2968 | definedInLength = S.size(); | |||
2969 | this->definedIn = new (C, 1) char [definedInLength]; | |||
2970 | if (!S.empty()) | |||
2971 | std::memcpy(this->definedIn, S.data(), definedInLength); | |||
2972 | } | |||
2973 | ||||
2974 | bool getGeneratedDeclaration() const { | |||
2975 | return generatedDeclaration; | |||
2976 | } | |||
2977 | ||||
2978 | ||||
2979 | ||||
2980 | static bool classof(const Attr *A) { return A->getKind() == attr::ExternalSourceSymbol; } | |||
2981 | }; | |||
2982 | ||||
2983 | class FallThroughAttr : public StmtAttr { | |||
2984 | public: | |||
2985 | static FallThroughAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
2986 | auto *A = new (Ctx) FallThroughAttr(Loc, Ctx, 0); | |||
2987 | A->setImplicit(true); | |||
2988 | return A; | |||
2989 | } | |||
2990 | ||||
2991 | FallThroughAttr(SourceRange R, ASTContext &Ctx | |||
2992 | , unsigned SI | |||
2993 | ) | |||
2994 | : StmtAttr(attr::FallThrough, R, SI, false) | |||
2995 | { | |||
2996 | } | |||
2997 | ||||
2998 | FallThroughAttr *clone(ASTContext &C) const; | |||
2999 | void printPretty(raw_ostream &OS, | |||
3000 | const PrintingPolicy &Policy) const; | |||
3001 | const char *getSpelling() const; | |||
3002 | ||||
3003 | ||||
3004 | static bool classof(const Attr *A) { return A->getKind() == attr::FallThrough; } | |||
3005 | }; | |||
3006 | ||||
3007 | class FastCallAttr : public InheritableAttr { | |||
3008 | public: | |||
3009 | static FastCallAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3010 | auto *A = new (Ctx) FastCallAttr(Loc, Ctx, 0); | |||
3011 | A->setImplicit(true); | |||
3012 | return A; | |||
3013 | } | |||
3014 | ||||
3015 | FastCallAttr(SourceRange R, ASTContext &Ctx | |||
3016 | , unsigned SI | |||
3017 | ) | |||
3018 | : InheritableAttr(attr::FastCall, R, SI, false, false) | |||
3019 | { | |||
3020 | } | |||
3021 | ||||
3022 | FastCallAttr *clone(ASTContext &C) const; | |||
3023 | void printPretty(raw_ostream &OS, | |||
3024 | const PrintingPolicy &Policy) const; | |||
3025 | const char *getSpelling() const; | |||
3026 | ||||
3027 | ||||
3028 | static bool classof(const Attr *A) { return A->getKind() == attr::FastCall; } | |||
3029 | }; | |||
3030 | ||||
3031 | class FinalAttr : public InheritableAttr { | |||
3032 | public: | |||
3033 | enum Spelling { | |||
3034 | Keyword_final = 0, | |||
3035 | Keyword_sealed = 1 | |||
3036 | }; | |||
3037 | ||||
3038 | static FinalAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
3039 | auto *A = new (Ctx) FinalAttr(Loc, Ctx, S); | |||
3040 | A->setImplicit(true); | |||
3041 | return A; | |||
3042 | } | |||
3043 | ||||
3044 | FinalAttr(SourceRange R, ASTContext &Ctx | |||
3045 | , unsigned SI | |||
3046 | ) | |||
3047 | : InheritableAttr(attr::Final, R, SI, false, false) | |||
3048 | { | |||
3049 | } | |||
3050 | ||||
3051 | FinalAttr *clone(ASTContext &C) const; | |||
3052 | void printPretty(raw_ostream &OS, | |||
3053 | const PrintingPolicy &Policy) const; | |||
3054 | const char *getSpelling() const; | |||
3055 | Spelling getSemanticSpelling() const { | |||
3056 | switch (SpellingListIndex) { | |||
3057 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3057); | |||
3058 | case 0: return Keyword_final; | |||
3059 | case 1: return Keyword_sealed; | |||
3060 | } | |||
3061 | } | |||
3062 | bool isSpelledAsSealed() const { return SpellingListIndex == 1; } | |||
3063 | ||||
3064 | ||||
3065 | static bool classof(const Attr *A) { return A->getKind() == attr::Final; } | |||
3066 | }; | |||
3067 | ||||
3068 | class FlagEnumAttr : public InheritableAttr { | |||
3069 | public: | |||
3070 | static FlagEnumAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3071 | auto *A = new (Ctx) FlagEnumAttr(Loc, Ctx, 0); | |||
3072 | A->setImplicit(true); | |||
3073 | return A; | |||
3074 | } | |||
3075 | ||||
3076 | FlagEnumAttr(SourceRange R, ASTContext &Ctx | |||
3077 | , unsigned SI | |||
3078 | ) | |||
3079 | : InheritableAttr(attr::FlagEnum, R, SI, false, false) | |||
3080 | { | |||
3081 | } | |||
3082 | ||||
3083 | FlagEnumAttr *clone(ASTContext &C) const; | |||
3084 | void printPretty(raw_ostream &OS, | |||
3085 | const PrintingPolicy &Policy) const; | |||
3086 | const char *getSpelling() const; | |||
3087 | ||||
3088 | ||||
3089 | static bool classof(const Attr *A) { return A->getKind() == attr::FlagEnum; } | |||
3090 | }; | |||
3091 | ||||
3092 | class FlattenAttr : public InheritableAttr { | |||
3093 | public: | |||
3094 | static FlattenAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3095 | auto *A = new (Ctx) FlattenAttr(Loc, Ctx, 0); | |||
3096 | A->setImplicit(true); | |||
3097 | return A; | |||
3098 | } | |||
3099 | ||||
3100 | FlattenAttr(SourceRange R, ASTContext &Ctx | |||
3101 | , unsigned SI | |||
3102 | ) | |||
3103 | : InheritableAttr(attr::Flatten, R, SI, false, false) | |||
3104 | { | |||
3105 | } | |||
3106 | ||||
3107 | FlattenAttr *clone(ASTContext &C) const; | |||
3108 | void printPretty(raw_ostream &OS, | |||
3109 | const PrintingPolicy &Policy) const; | |||
3110 | const char *getSpelling() const; | |||
3111 | ||||
3112 | ||||
3113 | static bool classof(const Attr *A) { return A->getKind() == attr::Flatten; } | |||
3114 | }; | |||
3115 | ||||
3116 | class FormatAttr : public InheritableAttr { | |||
3117 | IdentifierInfo * type; | |||
3118 | ||||
3119 | int formatIdx; | |||
3120 | ||||
3121 | int firstArg; | |||
3122 | ||||
3123 | public: | |||
3124 | static FormatAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * Type, int FormatIdx, int FirstArg, SourceRange Loc = SourceRange()) { | |||
3125 | auto *A = new (Ctx) FormatAttr(Loc, Ctx, Type, FormatIdx, FirstArg, 0); | |||
3126 | A->setImplicit(true); | |||
3127 | return A; | |||
3128 | } | |||
3129 | ||||
3130 | FormatAttr(SourceRange R, ASTContext &Ctx | |||
3131 | , IdentifierInfo * Type | |||
3132 | , int FormatIdx | |||
3133 | , int FirstArg | |||
3134 | , unsigned SI | |||
3135 | ) | |||
3136 | : InheritableAttr(attr::Format, R, SI, false, false) | |||
3137 | , type(Type) | |||
3138 | , formatIdx(FormatIdx) | |||
3139 | , firstArg(FirstArg) | |||
3140 | { | |||
3141 | } | |||
3142 | ||||
3143 | FormatAttr *clone(ASTContext &C) const; | |||
3144 | void printPretty(raw_ostream &OS, | |||
3145 | const PrintingPolicy &Policy) const; | |||
3146 | const char *getSpelling() const; | |||
3147 | IdentifierInfo * getType() const { | |||
3148 | return type; | |||
3149 | } | |||
3150 | ||||
3151 | int getFormatIdx() const { | |||
3152 | return formatIdx; | |||
3153 | } | |||
3154 | ||||
3155 | int getFirstArg() const { | |||
3156 | return firstArg; | |||
3157 | } | |||
3158 | ||||
3159 | ||||
3160 | ||||
3161 | static bool classof(const Attr *A) { return A->getKind() == attr::Format; } | |||
3162 | }; | |||
3163 | ||||
3164 | class FormatArgAttr : public InheritableAttr { | |||
3165 | ParamIdx formatIdx; | |||
3166 | ||||
3167 | public: | |||
3168 | static FormatArgAttr *CreateImplicit(ASTContext &Ctx, ParamIdx FormatIdx, SourceRange Loc = SourceRange()) { | |||
3169 | auto *A = new (Ctx) FormatArgAttr(Loc, Ctx, FormatIdx, 0); | |||
3170 | A->setImplicit(true); | |||
3171 | return A; | |||
3172 | } | |||
3173 | ||||
3174 | FormatArgAttr(SourceRange R, ASTContext &Ctx | |||
3175 | , ParamIdx FormatIdx | |||
3176 | , unsigned SI | |||
3177 | ) | |||
3178 | : InheritableAttr(attr::FormatArg, R, SI, false, false) | |||
3179 | , formatIdx(FormatIdx) | |||
3180 | { | |||
3181 | } | |||
3182 | ||||
3183 | FormatArgAttr *clone(ASTContext &C) const; | |||
3184 | void printPretty(raw_ostream &OS, | |||
3185 | const PrintingPolicy &Policy) const; | |||
3186 | const char *getSpelling() const; | |||
3187 | ParamIdx getFormatIdx() const { | |||
3188 | return formatIdx; | |||
3189 | } | |||
3190 | ||||
3191 | ||||
3192 | ||||
3193 | static bool classof(const Attr *A) { return A->getKind() == attr::FormatArg; } | |||
3194 | }; | |||
3195 | ||||
3196 | class GNUInlineAttr : public InheritableAttr { | |||
3197 | public: | |||
3198 | static GNUInlineAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3199 | auto *A = new (Ctx) GNUInlineAttr(Loc, Ctx, 0); | |||
3200 | A->setImplicit(true); | |||
3201 | return A; | |||
3202 | } | |||
3203 | ||||
3204 | GNUInlineAttr(SourceRange R, ASTContext &Ctx | |||
3205 | , unsigned SI | |||
3206 | ) | |||
3207 | : InheritableAttr(attr::GNUInline, R, SI, false, false) | |||
3208 | { | |||
3209 | } | |||
3210 | ||||
3211 | GNUInlineAttr *clone(ASTContext &C) const; | |||
3212 | void printPretty(raw_ostream &OS, | |||
3213 | const PrintingPolicy &Policy) const; | |||
3214 | const char *getSpelling() const; | |||
3215 | ||||
3216 | ||||
3217 | static bool classof(const Attr *A) { return A->getKind() == attr::GNUInline; } | |||
3218 | }; | |||
3219 | ||||
3220 | class GuardedByAttr : public InheritableAttr { | |||
3221 | Expr * arg; | |||
3222 | ||||
3223 | public: | |||
3224 | static GuardedByAttr *CreateImplicit(ASTContext &Ctx, Expr * Arg, SourceRange Loc = SourceRange()) { | |||
3225 | auto *A = new (Ctx) GuardedByAttr(Loc, Ctx, Arg, 0); | |||
3226 | A->setImplicit(true); | |||
3227 | return A; | |||
3228 | } | |||
3229 | ||||
3230 | GuardedByAttr(SourceRange R, ASTContext &Ctx | |||
3231 | , Expr * Arg | |||
3232 | , unsigned SI | |||
3233 | ) | |||
3234 | : InheritableAttr(attr::GuardedBy, R, SI, true, true) | |||
3235 | , arg(Arg) | |||
3236 | { | |||
3237 | } | |||
3238 | ||||
3239 | GuardedByAttr *clone(ASTContext &C) const; | |||
3240 | void printPretty(raw_ostream &OS, | |||
3241 | const PrintingPolicy &Policy) const; | |||
3242 | const char *getSpelling() const; | |||
3243 | Expr * getArg() const { | |||
3244 | return arg; | |||
3245 | } | |||
3246 | ||||
3247 | ||||
3248 | ||||
3249 | static bool classof(const Attr *A) { return A->getKind() == attr::GuardedBy; } | |||
3250 | }; | |||
3251 | ||||
3252 | class GuardedVarAttr : public InheritableAttr { | |||
3253 | public: | |||
3254 | static GuardedVarAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3255 | auto *A = new (Ctx) GuardedVarAttr(Loc, Ctx, 0); | |||
3256 | A->setImplicit(true); | |||
3257 | return A; | |||
3258 | } | |||
3259 | ||||
3260 | GuardedVarAttr(SourceRange R, ASTContext &Ctx | |||
3261 | , unsigned SI | |||
3262 | ) | |||
3263 | : InheritableAttr(attr::GuardedVar, R, SI, false, false) | |||
3264 | { | |||
3265 | } | |||
3266 | ||||
3267 | GuardedVarAttr *clone(ASTContext &C) const; | |||
3268 | void printPretty(raw_ostream &OS, | |||
3269 | const PrintingPolicy &Policy) const; | |||
3270 | const char *getSpelling() const; | |||
3271 | ||||
3272 | ||||
3273 | static bool classof(const Attr *A) { return A->getKind() == attr::GuardedVar; } | |||
3274 | }; | |||
3275 | ||||
3276 | class HotAttr : public InheritableAttr { | |||
3277 | public: | |||
3278 | static HotAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3279 | auto *A = new (Ctx) HotAttr(Loc, Ctx, 0); | |||
3280 | A->setImplicit(true); | |||
3281 | return A; | |||
3282 | } | |||
3283 | ||||
3284 | HotAttr(SourceRange R, ASTContext &Ctx | |||
3285 | , unsigned SI | |||
3286 | ) | |||
3287 | : InheritableAttr(attr::Hot, R, SI, false, false) | |||
3288 | { | |||
3289 | } | |||
3290 | ||||
3291 | HotAttr *clone(ASTContext &C) const; | |||
3292 | void printPretty(raw_ostream &OS, | |||
3293 | const PrintingPolicy &Policy) const; | |||
3294 | const char *getSpelling() const; | |||
3295 | ||||
3296 | ||||
3297 | static bool classof(const Attr *A) { return A->getKind() == attr::Hot; } | |||
3298 | }; | |||
3299 | ||||
3300 | class IBActionAttr : public InheritableAttr { | |||
3301 | public: | |||
3302 | static IBActionAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3303 | auto *A = new (Ctx) IBActionAttr(Loc, Ctx, 0); | |||
3304 | A->setImplicit(true); | |||
3305 | return A; | |||
3306 | } | |||
3307 | ||||
3308 | IBActionAttr(SourceRange R, ASTContext &Ctx | |||
3309 | , unsigned SI | |||
3310 | ) | |||
3311 | : InheritableAttr(attr::IBAction, R, SI, false, false) | |||
3312 | { | |||
3313 | } | |||
3314 | ||||
3315 | IBActionAttr *clone(ASTContext &C) const; | |||
3316 | void printPretty(raw_ostream &OS, | |||
3317 | const PrintingPolicy &Policy) const; | |||
3318 | const char *getSpelling() const; | |||
3319 | ||||
3320 | ||||
3321 | static bool classof(const Attr *A) { return A->getKind() == attr::IBAction; } | |||
3322 | }; | |||
3323 | ||||
3324 | class IBOutletAttr : public InheritableAttr { | |||
3325 | public: | |||
3326 | static IBOutletAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3327 | auto *A = new (Ctx) IBOutletAttr(Loc, Ctx, 0); | |||
3328 | A->setImplicit(true); | |||
3329 | return A; | |||
3330 | } | |||
3331 | ||||
3332 | IBOutletAttr(SourceRange R, ASTContext &Ctx | |||
3333 | , unsigned SI | |||
3334 | ) | |||
3335 | : InheritableAttr(attr::IBOutlet, R, SI, false, false) | |||
3336 | { | |||
3337 | } | |||
3338 | ||||
3339 | IBOutletAttr *clone(ASTContext &C) const; | |||
3340 | void printPretty(raw_ostream &OS, | |||
3341 | const PrintingPolicy &Policy) const; | |||
3342 | const char *getSpelling() const; | |||
3343 | ||||
3344 | ||||
3345 | static bool classof(const Attr *A) { return A->getKind() == attr::IBOutlet; } | |||
3346 | }; | |||
3347 | ||||
3348 | class IBOutletCollectionAttr : public InheritableAttr { | |||
3349 | TypeSourceInfo * interface_; | |||
3350 | ||||
3351 | public: | |||
3352 | static IBOutletCollectionAttr *CreateImplicit(ASTContext &Ctx, TypeSourceInfo * Interface, SourceRange Loc = SourceRange()) { | |||
3353 | auto *A = new (Ctx) IBOutletCollectionAttr(Loc, Ctx, Interface, 0); | |||
3354 | A->setImplicit(true); | |||
3355 | return A; | |||
3356 | } | |||
3357 | ||||
3358 | IBOutletCollectionAttr(SourceRange R, ASTContext &Ctx | |||
3359 | , TypeSourceInfo * Interface | |||
3360 | , unsigned SI | |||
3361 | ) | |||
3362 | : InheritableAttr(attr::IBOutletCollection, R, SI, false, false) | |||
3363 | , interface_(Interface) | |||
3364 | { | |||
3365 | } | |||
3366 | ||||
3367 | IBOutletCollectionAttr(SourceRange R, ASTContext &Ctx | |||
3368 | , unsigned SI | |||
3369 | ) | |||
3370 | : InheritableAttr(attr::IBOutletCollection, R, SI, false, false) | |||
3371 | , interface_() | |||
3372 | { | |||
3373 | } | |||
3374 | ||||
3375 | IBOutletCollectionAttr *clone(ASTContext &C) const; | |||
3376 | void printPretty(raw_ostream &OS, | |||
3377 | const PrintingPolicy &Policy) const; | |||
3378 | const char *getSpelling() const; | |||
3379 | QualType getInterface() const { | |||
3380 | return interface_->getType(); | |||
3381 | } TypeSourceInfo * getInterfaceLoc() const { | |||
3382 | return interface_; | |||
3383 | } | |||
3384 | ||||
3385 | ||||
3386 | ||||
3387 | static bool classof(const Attr *A) { return A->getKind() == attr::IBOutletCollection; } | |||
3388 | }; | |||
3389 | ||||
3390 | class IFuncAttr : public Attr { | |||
3391 | unsigned resolverLength; | |||
3392 | char *resolver; | |||
3393 | ||||
3394 | public: | |||
3395 | static IFuncAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Resolver, SourceRange Loc = SourceRange()) { | |||
3396 | auto *A = new (Ctx) IFuncAttr(Loc, Ctx, Resolver, 0); | |||
3397 | A->setImplicit(true); | |||
3398 | return A; | |||
3399 | } | |||
3400 | ||||
3401 | IFuncAttr(SourceRange R, ASTContext &Ctx | |||
3402 | , llvm::StringRef Resolver | |||
3403 | , unsigned SI | |||
3404 | ) | |||
3405 | : Attr(attr::IFunc, R, SI, false) | |||
3406 | , resolverLength(Resolver.size()),resolver(new (Ctx, 1) char[resolverLength]) | |||
3407 | { | |||
3408 | if (!Resolver.empty()) | |||
3409 | std::memcpy(resolver, Resolver.data(), resolverLength); | |||
3410 | } | |||
3411 | ||||
3412 | IFuncAttr *clone(ASTContext &C) const; | |||
3413 | void printPretty(raw_ostream &OS, | |||
3414 | const PrintingPolicy &Policy) const; | |||
3415 | const char *getSpelling() const; | |||
3416 | llvm::StringRef getResolver() const { | |||
3417 | return llvm::StringRef(resolver, resolverLength); | |||
3418 | } | |||
3419 | unsigned getResolverLength() const { | |||
3420 | return resolverLength; | |||
3421 | } | |||
3422 | void setResolver(ASTContext &C, llvm::StringRef S) { | |||
3423 | resolverLength = S.size(); | |||
3424 | this->resolver = new (C, 1) char [resolverLength]; | |||
3425 | if (!S.empty()) | |||
3426 | std::memcpy(this->resolver, S.data(), resolverLength); | |||
3427 | } | |||
3428 | ||||
3429 | ||||
3430 | ||||
3431 | static bool classof(const Attr *A) { return A->getKind() == attr::IFunc; } | |||
3432 | }; | |||
3433 | ||||
3434 | class InitPriorityAttr : public InheritableAttr { | |||
3435 | unsigned priority; | |||
3436 | ||||
3437 | public: | |||
3438 | static InitPriorityAttr *CreateImplicit(ASTContext &Ctx, unsigned Priority, SourceRange Loc = SourceRange()) { | |||
3439 | auto *A = new (Ctx) InitPriorityAttr(Loc, Ctx, Priority, 0); | |||
3440 | A->setImplicit(true); | |||
3441 | return A; | |||
3442 | } | |||
3443 | ||||
3444 | InitPriorityAttr(SourceRange R, ASTContext &Ctx | |||
3445 | , unsigned Priority | |||
3446 | , unsigned SI | |||
3447 | ) | |||
3448 | : InheritableAttr(attr::InitPriority, R, SI, false, false) | |||
3449 | , priority(Priority) | |||
3450 | { | |||
3451 | } | |||
3452 | ||||
3453 | InitPriorityAttr *clone(ASTContext &C) const; | |||
3454 | void printPretty(raw_ostream &OS, | |||
3455 | const PrintingPolicy &Policy) const; | |||
3456 | const char *getSpelling() const; | |||
3457 | unsigned getPriority() const { | |||
3458 | return priority; | |||
3459 | } | |||
3460 | ||||
3461 | ||||
3462 | ||||
3463 | static bool classof(const Attr *A) { return A->getKind() == attr::InitPriority; } | |||
3464 | }; | |||
3465 | ||||
3466 | class InitSegAttr : public Attr { | |||
3467 | unsigned sectionLength; | |||
3468 | char *section; | |||
3469 | ||||
3470 | public: | |||
3471 | static InitSegAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Section, SourceRange Loc = SourceRange()) { | |||
3472 | auto *A = new (Ctx) InitSegAttr(Loc, Ctx, Section, 0); | |||
3473 | A->setImplicit(true); | |||
3474 | return A; | |||
3475 | } | |||
3476 | ||||
3477 | InitSegAttr(SourceRange R, ASTContext &Ctx | |||
3478 | , llvm::StringRef Section | |||
3479 | , unsigned SI | |||
3480 | ) | |||
3481 | : Attr(attr::InitSeg, R, SI, false) | |||
3482 | , sectionLength(Section.size()),section(new (Ctx, 1) char[sectionLength]) | |||
3483 | { | |||
3484 | if (!Section.empty()) | |||
3485 | std::memcpy(section, Section.data(), sectionLength); | |||
3486 | } | |||
3487 | ||||
3488 | InitSegAttr *clone(ASTContext &C) const; | |||
3489 | void printPretty(raw_ostream &OS, | |||
3490 | const PrintingPolicy &Policy) const; | |||
3491 | const char *getSpelling() const; | |||
3492 | llvm::StringRef getSection() const { | |||
3493 | return llvm::StringRef(section, sectionLength); | |||
3494 | } | |||
3495 | unsigned getSectionLength() const { | |||
3496 | return sectionLength; | |||
3497 | } | |||
3498 | void setSection(ASTContext &C, llvm::StringRef S) { | |||
3499 | sectionLength = S.size(); | |||
3500 | this->section = new (C, 1) char [sectionLength]; | |||
3501 | if (!S.empty()) | |||
3502 | std::memcpy(this->section, S.data(), sectionLength); | |||
3503 | } | |||
3504 | ||||
3505 | ||||
3506 | void printPrettyPragma(raw_ostream &OS, const PrintingPolicy &Policy) const { | |||
3507 | OS << " (" << getSection() << ')'; | |||
3508 | } | |||
3509 | ||||
3510 | ||||
3511 | static bool classof(const Attr *A) { return A->getKind() == attr::InitSeg; } | |||
3512 | }; | |||
3513 | ||||
3514 | class IntelOclBiccAttr : public InheritableAttr { | |||
3515 | public: | |||
3516 | static IntelOclBiccAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3517 | auto *A = new (Ctx) IntelOclBiccAttr(Loc, Ctx, 0); | |||
3518 | A->setImplicit(true); | |||
3519 | return A; | |||
3520 | } | |||
3521 | ||||
3522 | IntelOclBiccAttr(SourceRange R, ASTContext &Ctx | |||
3523 | , unsigned SI | |||
3524 | ) | |||
3525 | : InheritableAttr(attr::IntelOclBicc, R, SI, false, false) | |||
3526 | { | |||
3527 | } | |||
3528 | ||||
3529 | IntelOclBiccAttr *clone(ASTContext &C) const; | |||
3530 | void printPretty(raw_ostream &OS, | |||
3531 | const PrintingPolicy &Policy) const; | |||
3532 | const char *getSpelling() const; | |||
3533 | ||||
3534 | ||||
3535 | static bool classof(const Attr *A) { return A->getKind() == attr::IntelOclBicc; } | |||
3536 | }; | |||
3537 | ||||
3538 | class InternalLinkageAttr : public InheritableAttr { | |||
3539 | public: | |||
3540 | static InternalLinkageAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3541 | auto *A = new (Ctx) InternalLinkageAttr(Loc, Ctx, 0); | |||
3542 | A->setImplicit(true); | |||
3543 | return A; | |||
3544 | } | |||
3545 | ||||
3546 | InternalLinkageAttr(SourceRange R, ASTContext &Ctx | |||
3547 | , unsigned SI | |||
3548 | ) | |||
3549 | : InheritableAttr(attr::InternalLinkage, R, SI, false, false) | |||
3550 | { | |||
3551 | } | |||
3552 | ||||
3553 | InternalLinkageAttr *clone(ASTContext &C) const; | |||
3554 | void printPretty(raw_ostream &OS, | |||
3555 | const PrintingPolicy &Policy) const; | |||
3556 | const char *getSpelling() const; | |||
3557 | ||||
3558 | ||||
3559 | static bool classof(const Attr *A) { return A->getKind() == attr::InternalLinkage; } | |||
3560 | }; | |||
3561 | ||||
3562 | class LTOVisibilityPublicAttr : public InheritableAttr { | |||
3563 | public: | |||
3564 | static LTOVisibilityPublicAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3565 | auto *A = new (Ctx) LTOVisibilityPublicAttr(Loc, Ctx, 0); | |||
3566 | A->setImplicit(true); | |||
3567 | return A; | |||
3568 | } | |||
3569 | ||||
3570 | LTOVisibilityPublicAttr(SourceRange R, ASTContext &Ctx | |||
3571 | , unsigned SI | |||
3572 | ) | |||
3573 | : InheritableAttr(attr::LTOVisibilityPublic, R, SI, false, false) | |||
3574 | { | |||
3575 | } | |||
3576 | ||||
3577 | LTOVisibilityPublicAttr *clone(ASTContext &C) const; | |||
3578 | void printPretty(raw_ostream &OS, | |||
3579 | const PrintingPolicy &Policy) const; | |||
3580 | const char *getSpelling() const; | |||
3581 | ||||
3582 | ||||
3583 | static bool classof(const Attr *A) { return A->getKind() == attr::LTOVisibilityPublic; } | |||
3584 | }; | |||
3585 | ||||
3586 | class LayoutVersionAttr : public InheritableAttr { | |||
3587 | unsigned version; | |||
3588 | ||||
3589 | public: | |||
3590 | static LayoutVersionAttr *CreateImplicit(ASTContext &Ctx, unsigned Version, SourceRange Loc = SourceRange()) { | |||
3591 | auto *A = new (Ctx) LayoutVersionAttr(Loc, Ctx, Version, 0); | |||
3592 | A->setImplicit(true); | |||
3593 | return A; | |||
3594 | } | |||
3595 | ||||
3596 | LayoutVersionAttr(SourceRange R, ASTContext &Ctx | |||
3597 | , unsigned Version | |||
3598 | , unsigned SI | |||
3599 | ) | |||
3600 | : InheritableAttr(attr::LayoutVersion, R, SI, false, false) | |||
3601 | , version(Version) | |||
3602 | { | |||
3603 | } | |||
3604 | ||||
3605 | LayoutVersionAttr *clone(ASTContext &C) const; | |||
3606 | void printPretty(raw_ostream &OS, | |||
3607 | const PrintingPolicy &Policy) const; | |||
3608 | const char *getSpelling() const; | |||
3609 | unsigned getVersion() const { | |||
3610 | return version; | |||
3611 | } | |||
3612 | ||||
3613 | ||||
3614 | ||||
3615 | static bool classof(const Attr *A) { return A->getKind() == attr::LayoutVersion; } | |||
3616 | }; | |||
3617 | ||||
3618 | class LockReturnedAttr : public InheritableAttr { | |||
3619 | Expr * arg; | |||
3620 | ||||
3621 | public: | |||
3622 | static LockReturnedAttr *CreateImplicit(ASTContext &Ctx, Expr * Arg, SourceRange Loc = SourceRange()) { | |||
3623 | auto *A = new (Ctx) LockReturnedAttr(Loc, Ctx, Arg, 0); | |||
3624 | A->setImplicit(true); | |||
3625 | return A; | |||
3626 | } | |||
3627 | ||||
3628 | LockReturnedAttr(SourceRange R, ASTContext &Ctx | |||
3629 | , Expr * Arg | |||
3630 | , unsigned SI | |||
3631 | ) | |||
3632 | : InheritableAttr(attr::LockReturned, R, SI, true, false) | |||
3633 | , arg(Arg) | |||
3634 | { | |||
3635 | } | |||
3636 | ||||
3637 | LockReturnedAttr *clone(ASTContext &C) const; | |||
3638 | void printPretty(raw_ostream &OS, | |||
3639 | const PrintingPolicy &Policy) const; | |||
3640 | const char *getSpelling() const; | |||
3641 | Expr * getArg() const { | |||
3642 | return arg; | |||
3643 | } | |||
3644 | ||||
3645 | ||||
3646 | ||||
3647 | static bool classof(const Attr *A) { return A->getKind() == attr::LockReturned; } | |||
3648 | }; | |||
3649 | ||||
3650 | class LocksExcludedAttr : public InheritableAttr { | |||
3651 | unsigned args_Size; | |||
3652 | Expr * *args_; | |||
3653 | ||||
3654 | public: | |||
3655 | static LocksExcludedAttr *CreateImplicit(ASTContext &Ctx, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
3656 | auto *A = new (Ctx) LocksExcludedAttr(Loc, Ctx, Args, ArgsSize, 0); | |||
3657 | A->setImplicit(true); | |||
3658 | return A; | |||
3659 | } | |||
3660 | ||||
3661 | LocksExcludedAttr(SourceRange R, ASTContext &Ctx | |||
3662 | , Expr * *Args, unsigned ArgsSize | |||
3663 | , unsigned SI | |||
3664 | ) | |||
3665 | : InheritableAttr(attr::LocksExcluded, R, SI, true, true) | |||
3666 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
3667 | { | |||
3668 | std::copy(Args, Args + args_Size, args_); | |||
3669 | } | |||
3670 | ||||
3671 | LocksExcludedAttr(SourceRange R, ASTContext &Ctx | |||
3672 | , unsigned SI | |||
3673 | ) | |||
3674 | : InheritableAttr(attr::LocksExcluded, R, SI, true, true) | |||
3675 | , args_Size(0), args_(nullptr) | |||
3676 | { | |||
3677 | } | |||
3678 | ||||
3679 | LocksExcludedAttr *clone(ASTContext &C) const; | |||
3680 | void printPretty(raw_ostream &OS, | |||
3681 | const PrintingPolicy &Policy) const; | |||
3682 | const char *getSpelling() const; | |||
3683 | typedef Expr ** args_iterator; | |||
3684 | args_iterator args_begin() const { return args_; } | |||
3685 | args_iterator args_end() const { return args_ + args_Size; } | |||
3686 | unsigned args_size() const { return args_Size; } | |||
3687 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
3688 | ||||
3689 | ||||
3690 | ||||
3691 | ||||
3692 | static bool classof(const Attr *A) { return A->getKind() == attr::LocksExcluded; } | |||
3693 | }; | |||
3694 | ||||
3695 | class LoopHintAttr : public Attr { | |||
3696 | public: | |||
3697 | enum OptionType { | |||
3698 | Vectorize, | |||
3699 | VectorizeWidth, | |||
3700 | Interleave, | |||
3701 | InterleaveCount, | |||
3702 | Unroll, | |||
3703 | UnrollCount, | |||
3704 | Distribute | |||
3705 | }; | |||
3706 | private: | |||
3707 | OptionType option; | |||
3708 | ||||
3709 | public: | |||
3710 | enum LoopHintState { | |||
3711 | Enable, | |||
3712 | Disable, | |||
3713 | Numeric, | |||
3714 | AssumeSafety, | |||
3715 | Full | |||
3716 | }; | |||
3717 | private: | |||
3718 | LoopHintState state; | |||
3719 | ||||
3720 | Expr * value; | |||
3721 | ||||
3722 | public: | |||
3723 | enum Spelling { | |||
3724 | Pragma_clang_loop = 0, | |||
3725 | Pragma_unroll = 1, | |||
3726 | Pragma_nounroll = 2 | |||
3727 | }; | |||
3728 | ||||
3729 | static LoopHintAttr *CreateImplicit(ASTContext &Ctx, Spelling S, OptionType Option, LoopHintState State, Expr * Value, SourceRange Loc = SourceRange()) { | |||
3730 | auto *A = new (Ctx) LoopHintAttr(Loc, Ctx, Option, State, Value, S); | |||
3731 | A->setImplicit(true); | |||
3732 | return A; | |||
3733 | } | |||
3734 | ||||
3735 | LoopHintAttr(SourceRange R, ASTContext &Ctx | |||
3736 | , OptionType Option | |||
3737 | , LoopHintState State | |||
3738 | , Expr * Value | |||
3739 | , unsigned SI | |||
3740 | ) | |||
3741 | : Attr(attr::LoopHint, R, SI, false) | |||
3742 | , option(Option) | |||
3743 | , state(State) | |||
3744 | , value(Value) | |||
3745 | { | |||
3746 | } | |||
3747 | ||||
3748 | LoopHintAttr *clone(ASTContext &C) const; | |||
3749 | void printPretty(raw_ostream &OS, | |||
3750 | const PrintingPolicy &Policy) const; | |||
3751 | const char *getSpelling() const; | |||
3752 | Spelling getSemanticSpelling() const { | |||
3753 | switch (SpellingListIndex) { | |||
3754 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3754); | |||
3755 | case 0: return Pragma_clang_loop; | |||
3756 | case 1: return Pragma_unroll; | |||
3757 | case 2: return Pragma_nounroll; | |||
3758 | } | |||
3759 | } | |||
3760 | OptionType getOption() const { | |||
3761 | return option; | |||
3762 | } | |||
3763 | ||||
3764 | static bool ConvertStrToOptionType(StringRef Val, OptionType &Out) { | |||
3765 | Optional<OptionType> R = llvm::StringSwitch<Optional<OptionType>>(Val) | |||
3766 | .Case("vectorize", LoopHintAttr::Vectorize) | |||
3767 | .Case("vectorize_width", LoopHintAttr::VectorizeWidth) | |||
3768 | .Case("interleave", LoopHintAttr::Interleave) | |||
3769 | .Case("interleave_count", LoopHintAttr::InterleaveCount) | |||
3770 | .Case("unroll", LoopHintAttr::Unroll) | |||
3771 | .Case("unroll_count", LoopHintAttr::UnrollCount) | |||
3772 | .Case("distribute", LoopHintAttr::Distribute) | |||
3773 | .Default(Optional<OptionType>()); | |||
3774 | if (R) { | |||
3775 | Out = *R; | |||
3776 | return true; | |||
3777 | } | |||
3778 | return false; | |||
3779 | } | |||
3780 | ||||
3781 | static const char *ConvertOptionTypeToStr(OptionType Val) { | |||
3782 | switch(Val) { | |||
3783 | case LoopHintAttr::Vectorize: return "vectorize"; | |||
3784 | case LoopHintAttr::VectorizeWidth: return "vectorize_width"; | |||
3785 | case LoopHintAttr::Interleave: return "interleave"; | |||
3786 | case LoopHintAttr::InterleaveCount: return "interleave_count"; | |||
3787 | case LoopHintAttr::Unroll: return "unroll"; | |||
3788 | case LoopHintAttr::UnrollCount: return "unroll_count"; | |||
3789 | case LoopHintAttr::Distribute: return "distribute"; | |||
3790 | } | |||
3791 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3791); | |||
3792 | } | |||
3793 | LoopHintState getState() const { | |||
3794 | return state; | |||
3795 | } | |||
3796 | ||||
3797 | static bool ConvertStrToLoopHintState(StringRef Val, LoopHintState &Out) { | |||
3798 | Optional<LoopHintState> R = llvm::StringSwitch<Optional<LoopHintState>>(Val) | |||
3799 | .Case("enable", LoopHintAttr::Enable) | |||
3800 | .Case("disable", LoopHintAttr::Disable) | |||
3801 | .Case("numeric", LoopHintAttr::Numeric) | |||
3802 | .Case("assume_safety", LoopHintAttr::AssumeSafety) | |||
3803 | .Case("full", LoopHintAttr::Full) | |||
3804 | .Default(Optional<LoopHintState>()); | |||
3805 | if (R) { | |||
3806 | Out = *R; | |||
3807 | return true; | |||
3808 | } | |||
3809 | return false; | |||
3810 | } | |||
3811 | ||||
3812 | static const char *ConvertLoopHintStateToStr(LoopHintState Val) { | |||
3813 | switch(Val) { | |||
3814 | case LoopHintAttr::Enable: return "enable"; | |||
3815 | case LoopHintAttr::Disable: return "disable"; | |||
3816 | case LoopHintAttr::Numeric: return "numeric"; | |||
3817 | case LoopHintAttr::AssumeSafety: return "assume_safety"; | |||
3818 | case LoopHintAttr::Full: return "full"; | |||
3819 | } | |||
3820 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3820); | |||
3821 | } | |||
3822 | Expr * getValue() const { | |||
3823 | return value; | |||
3824 | } | |||
3825 | ||||
3826 | ||||
3827 | static const char *getOptionName(int Option) { | |||
3828 | switch(Option) { | |||
3829 | case Vectorize: return "vectorize"; | |||
3830 | case VectorizeWidth: return "vectorize_width"; | |||
3831 | case Interleave: return "interleave"; | |||
3832 | case InterleaveCount: return "interleave_count"; | |||
3833 | case Unroll: return "unroll"; | |||
3834 | case UnrollCount: return "unroll_count"; | |||
3835 | case Distribute: return "distribute"; | |||
3836 | } | |||
3837 | llvm_unreachable("Unhandled LoopHint option.")::llvm::llvm_unreachable_internal("Unhandled LoopHint option." , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3837); | |||
3838 | } | |||
3839 | ||||
3840 | void printPrettyPragma(raw_ostream &OS, const PrintingPolicy &Policy) const { | |||
3841 | unsigned SpellingIndex = getSpellingListIndex(); | |||
3842 | // For "#pragma unroll" and "#pragma nounroll" the string "unroll" or | |||
3843 | // "nounroll" is already emitted as the pragma name. | |||
3844 | if (SpellingIndex == Pragma_nounroll) | |||
3845 | return; | |||
3846 | else if (SpellingIndex == Pragma_unroll) { | |||
3847 | OS << ' ' << getValueString(Policy); | |||
3848 | return; | |||
3849 | } | |||
3850 | ||||
3851 | assert(SpellingIndex == Pragma_clang_loop && "Unexpected spelling")(static_cast <bool> (SpellingIndex == Pragma_clang_loop && "Unexpected spelling") ? void (0) : __assert_fail ("SpellingIndex == Pragma_clang_loop && \"Unexpected spelling\"" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3851, __extension__ __PRETTY_FUNCTION__)); | |||
3852 | OS << ' ' << getOptionName(option) << getValueString(Policy); | |||
3853 | } | |||
3854 | ||||
3855 | // Return a string containing the loop hint argument including the | |||
3856 | // enclosing parentheses. | |||
3857 | std::string getValueString(const PrintingPolicy &Policy) const { | |||
3858 | std::string ValueName; | |||
3859 | llvm::raw_string_ostream OS(ValueName); | |||
3860 | OS << "("; | |||
3861 | if (state == Numeric) | |||
3862 | value->printPretty(OS, nullptr, Policy); | |||
3863 | else if (state == Enable) | |||
3864 | OS << "enable"; | |||
3865 | else if (state == Full) | |||
3866 | OS << "full"; | |||
3867 | else if (state == AssumeSafety) | |||
3868 | OS << "assume_safety"; | |||
3869 | else | |||
3870 | OS << "disable"; | |||
3871 | OS << ")"; | |||
3872 | return OS.str(); | |||
3873 | } | |||
3874 | ||||
3875 | // Return a string suitable for identifying this attribute in diagnostics. | |||
3876 | std::string getDiagnosticName(const PrintingPolicy &Policy) const { | |||
3877 | unsigned SpellingIndex = getSpellingListIndex(); | |||
3878 | if (SpellingIndex == Pragma_nounroll) | |||
3879 | return "#pragma nounroll"; | |||
3880 | else if (SpellingIndex == Pragma_unroll) | |||
3881 | return "#pragma unroll" + (option == UnrollCount ? getValueString(Policy) : ""); | |||
3882 | ||||
3883 | assert(SpellingIndex == Pragma_clang_loop && "Unexpected spelling")(static_cast <bool> (SpellingIndex == Pragma_clang_loop && "Unexpected spelling") ? void (0) : __assert_fail ("SpellingIndex == Pragma_clang_loop && \"Unexpected spelling\"" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3883, __extension__ __PRETTY_FUNCTION__)); | |||
3884 | return getOptionName(option) + getValueString(Policy); | |||
3885 | } | |||
3886 | ||||
3887 | ||||
3888 | static bool classof(const Attr *A) { return A->getKind() == attr::LoopHint; } | |||
3889 | }; | |||
3890 | ||||
3891 | class MSABIAttr : public InheritableAttr { | |||
3892 | public: | |||
3893 | static MSABIAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3894 | auto *A = new (Ctx) MSABIAttr(Loc, Ctx, 0); | |||
3895 | A->setImplicit(true); | |||
3896 | return A; | |||
3897 | } | |||
3898 | ||||
3899 | MSABIAttr(SourceRange R, ASTContext &Ctx | |||
3900 | , unsigned SI | |||
3901 | ) | |||
3902 | : InheritableAttr(attr::MSABI, R, SI, false, false) | |||
3903 | { | |||
3904 | } | |||
3905 | ||||
3906 | MSABIAttr *clone(ASTContext &C) const; | |||
3907 | void printPretty(raw_ostream &OS, | |||
3908 | const PrintingPolicy &Policy) const; | |||
3909 | const char *getSpelling() const; | |||
3910 | ||||
3911 | ||||
3912 | static bool classof(const Attr *A) { return A->getKind() == attr::MSABI; } | |||
3913 | }; | |||
3914 | ||||
3915 | class MSInheritanceAttr : public InheritableAttr { | |||
3916 | bool bestCase; | |||
3917 | ||||
3918 | public: | |||
3919 | enum Spelling { | |||
3920 | Keyword_single_inheritance = 0, | |||
3921 | Keyword_multiple_inheritance = 1, | |||
3922 | Keyword_virtual_inheritance = 2, | |||
3923 | Keyword_unspecified_inheritance = 3 | |||
3924 | }; | |||
3925 | ||||
3926 | static MSInheritanceAttr *CreateImplicit(ASTContext &Ctx, Spelling S, bool BestCase, SourceRange Loc = SourceRange()) { | |||
3927 | auto *A = new (Ctx) MSInheritanceAttr(Loc, Ctx, BestCase, S); | |||
3928 | A->setImplicit(true); | |||
3929 | return A; | |||
3930 | } | |||
3931 | ||||
3932 | MSInheritanceAttr(SourceRange R, ASTContext &Ctx | |||
3933 | , bool BestCase | |||
3934 | , unsigned SI | |||
3935 | ) | |||
3936 | : InheritableAttr(attr::MSInheritance, R, SI, false, false) | |||
3937 | , bestCase(BestCase) | |||
3938 | { | |||
3939 | } | |||
3940 | ||||
3941 | MSInheritanceAttr(SourceRange R, ASTContext &Ctx | |||
3942 | , unsigned SI | |||
3943 | ) | |||
3944 | : InheritableAttr(attr::MSInheritance, R, SI, false, false) | |||
3945 | , bestCase() | |||
3946 | { | |||
3947 | } | |||
3948 | ||||
3949 | MSInheritanceAttr *clone(ASTContext &C) const; | |||
3950 | void printPretty(raw_ostream &OS, | |||
3951 | const PrintingPolicy &Policy) const; | |||
3952 | const char *getSpelling() const; | |||
3953 | Spelling getSemanticSpelling() const { | |||
3954 | switch (SpellingListIndex) { | |||
3955 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 3955); | |||
3956 | case 0: return Keyword_single_inheritance; | |||
3957 | case 1: return Keyword_multiple_inheritance; | |||
3958 | case 2: return Keyword_virtual_inheritance; | |||
3959 | case 3: return Keyword_unspecified_inheritance; | |||
3960 | } | |||
3961 | } | |||
3962 | bool getBestCase() const { | |||
3963 | return bestCase; | |||
3964 | } | |||
3965 | ||||
3966 | static const bool DefaultBestCase = true; | |||
3967 | ||||
3968 | ||||
3969 | static bool hasVBPtrOffsetField(Spelling Inheritance) { | |||
3970 | return Inheritance == Keyword_unspecified_inheritance; | |||
3971 | } | |||
3972 | ||||
3973 | // Only member pointers to functions need a this adjustment, since it can be | |||
3974 | // combined with the field offset for data pointers. | |||
3975 | static bool hasNVOffsetField(bool IsMemberFunction, Spelling Inheritance) { | |||
3976 | return IsMemberFunction && Inheritance >= Keyword_multiple_inheritance; | |||
3977 | } | |||
3978 | ||||
3979 | static bool hasVBTableOffsetField(Spelling Inheritance) { | |||
3980 | return Inheritance >= Keyword_virtual_inheritance; | |||
3981 | } | |||
3982 | ||||
3983 | static bool hasOnlyOneField(bool IsMemberFunction, | |||
3984 | Spelling Inheritance) { | |||
3985 | if (IsMemberFunction) | |||
3986 | return Inheritance <= Keyword_single_inheritance; | |||
3987 | return Inheritance <= Keyword_multiple_inheritance; | |||
3988 | } | |||
3989 | ||||
3990 | ||||
3991 | static bool classof(const Attr *A) { return A->getKind() == attr::MSInheritance; } | |||
3992 | }; | |||
3993 | ||||
3994 | class MSNoVTableAttr : public InheritableAttr { | |||
3995 | public: | |||
3996 | static MSNoVTableAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
3997 | auto *A = new (Ctx) MSNoVTableAttr(Loc, Ctx, 0); | |||
3998 | A->setImplicit(true); | |||
3999 | return A; | |||
4000 | } | |||
4001 | ||||
4002 | MSNoVTableAttr(SourceRange R, ASTContext &Ctx | |||
4003 | , unsigned SI | |||
4004 | ) | |||
4005 | : InheritableAttr(attr::MSNoVTable, R, SI, false, false) | |||
4006 | { | |||
4007 | } | |||
4008 | ||||
4009 | MSNoVTableAttr *clone(ASTContext &C) const; | |||
4010 | void printPretty(raw_ostream &OS, | |||
4011 | const PrintingPolicy &Policy) const; | |||
4012 | const char *getSpelling() const; | |||
4013 | ||||
4014 | ||||
4015 | static bool classof(const Attr *A) { return A->getKind() == attr::MSNoVTable; } | |||
4016 | }; | |||
4017 | ||||
4018 | class MSP430InterruptAttr : public InheritableAttr { | |||
4019 | unsigned number; | |||
4020 | ||||
4021 | public: | |||
4022 | static MSP430InterruptAttr *CreateImplicit(ASTContext &Ctx, unsigned Number, SourceRange Loc = SourceRange()) { | |||
4023 | auto *A = new (Ctx) MSP430InterruptAttr(Loc, Ctx, Number, 0); | |||
4024 | A->setImplicit(true); | |||
4025 | return A; | |||
4026 | } | |||
4027 | ||||
4028 | MSP430InterruptAttr(SourceRange R, ASTContext &Ctx | |||
4029 | , unsigned Number | |||
4030 | , unsigned SI | |||
4031 | ) | |||
4032 | : InheritableAttr(attr::MSP430Interrupt, R, SI, false, false) | |||
4033 | , number(Number) | |||
4034 | { | |||
4035 | } | |||
4036 | ||||
4037 | MSP430InterruptAttr *clone(ASTContext &C) const; | |||
4038 | void printPretty(raw_ostream &OS, | |||
4039 | const PrintingPolicy &Policy) const; | |||
4040 | const char *getSpelling() const; | |||
4041 | unsigned getNumber() const { | |||
4042 | return number; | |||
4043 | } | |||
4044 | ||||
4045 | ||||
4046 | ||||
4047 | static bool classof(const Attr *A) { return A->getKind() == attr::MSP430Interrupt; } | |||
4048 | }; | |||
4049 | ||||
4050 | class MSStructAttr : public InheritableAttr { | |||
4051 | public: | |||
4052 | static MSStructAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4053 | auto *A = new (Ctx) MSStructAttr(Loc, Ctx, 0); | |||
4054 | A->setImplicit(true); | |||
4055 | return A; | |||
4056 | } | |||
4057 | ||||
4058 | MSStructAttr(SourceRange R, ASTContext &Ctx | |||
4059 | , unsigned SI | |||
4060 | ) | |||
4061 | : InheritableAttr(attr::MSStruct, R, SI, false, false) | |||
4062 | { | |||
4063 | } | |||
4064 | ||||
4065 | MSStructAttr *clone(ASTContext &C) const; | |||
4066 | void printPretty(raw_ostream &OS, | |||
4067 | const PrintingPolicy &Policy) const; | |||
4068 | const char *getSpelling() const; | |||
4069 | ||||
4070 | ||||
4071 | static bool classof(const Attr *A) { return A->getKind() == attr::MSStruct; } | |||
4072 | }; | |||
4073 | ||||
4074 | class MSVtorDispAttr : public InheritableAttr { | |||
4075 | unsigned vdm; | |||
4076 | ||||
4077 | public: | |||
4078 | static MSVtorDispAttr *CreateImplicit(ASTContext &Ctx, unsigned Vdm, SourceRange Loc = SourceRange()) { | |||
4079 | auto *A = new (Ctx) MSVtorDispAttr(Loc, Ctx, Vdm, 0); | |||
4080 | A->setImplicit(true); | |||
4081 | return A; | |||
4082 | } | |||
4083 | ||||
4084 | MSVtorDispAttr(SourceRange R, ASTContext &Ctx | |||
4085 | , unsigned Vdm | |||
4086 | , unsigned SI | |||
4087 | ) | |||
4088 | : InheritableAttr(attr::MSVtorDisp, R, SI, false, false) | |||
4089 | , vdm(Vdm) | |||
4090 | { | |||
4091 | } | |||
4092 | ||||
4093 | MSVtorDispAttr *clone(ASTContext &C) const; | |||
4094 | void printPretty(raw_ostream &OS, | |||
4095 | const PrintingPolicy &Policy) const; | |||
4096 | const char *getSpelling() const; | |||
4097 | unsigned getVdm() const { | |||
4098 | return vdm; | |||
4099 | } | |||
4100 | ||||
4101 | ||||
4102 | enum Mode { | |||
4103 | Never, | |||
4104 | ForVBaseOverride, | |||
4105 | ForVFTable | |||
4106 | }; | |||
4107 | ||||
4108 | Mode getVtorDispMode() const { return Mode(vdm); } | |||
4109 | ||||
4110 | ||||
4111 | static bool classof(const Attr *A) { return A->getKind() == attr::MSVtorDisp; } | |||
4112 | }; | |||
4113 | ||||
4114 | class MaxFieldAlignmentAttr : public InheritableAttr { | |||
4115 | unsigned alignment; | |||
4116 | ||||
4117 | public: | |||
4118 | static MaxFieldAlignmentAttr *CreateImplicit(ASTContext &Ctx, unsigned Alignment, SourceRange Loc = SourceRange()) { | |||
4119 | auto *A = new (Ctx) MaxFieldAlignmentAttr(Loc, Ctx, Alignment, 0); | |||
4120 | A->setImplicit(true); | |||
4121 | return A; | |||
4122 | } | |||
4123 | ||||
4124 | MaxFieldAlignmentAttr(SourceRange R, ASTContext &Ctx | |||
4125 | , unsigned Alignment | |||
4126 | , unsigned SI | |||
4127 | ) | |||
4128 | : InheritableAttr(attr::MaxFieldAlignment, R, SI, false, false) | |||
4129 | , alignment(Alignment) | |||
4130 | { | |||
4131 | } | |||
4132 | ||||
4133 | MaxFieldAlignmentAttr *clone(ASTContext &C) const; | |||
4134 | void printPretty(raw_ostream &OS, | |||
4135 | const PrintingPolicy &Policy) const; | |||
4136 | const char *getSpelling() const; | |||
4137 | unsigned getAlignment() const { | |||
4138 | return alignment; | |||
4139 | } | |||
4140 | ||||
4141 | ||||
4142 | ||||
4143 | static bool classof(const Attr *A) { return A->getKind() == attr::MaxFieldAlignment; } | |||
4144 | }; | |||
4145 | ||||
4146 | class MayAliasAttr : public InheritableAttr { | |||
4147 | public: | |||
4148 | static MayAliasAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4149 | auto *A = new (Ctx) MayAliasAttr(Loc, Ctx, 0); | |||
4150 | A->setImplicit(true); | |||
4151 | return A; | |||
4152 | } | |||
4153 | ||||
4154 | MayAliasAttr(SourceRange R, ASTContext &Ctx | |||
4155 | , unsigned SI | |||
4156 | ) | |||
4157 | : InheritableAttr(attr::MayAlias, R, SI, false, false) | |||
4158 | { | |||
4159 | } | |||
4160 | ||||
4161 | MayAliasAttr *clone(ASTContext &C) const; | |||
4162 | void printPretty(raw_ostream &OS, | |||
4163 | const PrintingPolicy &Policy) const; | |||
4164 | const char *getSpelling() const; | |||
4165 | ||||
4166 | ||||
4167 | static bool classof(const Attr *A) { return A->getKind() == attr::MayAlias; } | |||
4168 | }; | |||
4169 | ||||
4170 | class MicroMipsAttr : public InheritableAttr { | |||
4171 | public: | |||
4172 | static MicroMipsAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4173 | auto *A = new (Ctx) MicroMipsAttr(Loc, Ctx, 0); | |||
4174 | A->setImplicit(true); | |||
4175 | return A; | |||
4176 | } | |||
4177 | ||||
4178 | MicroMipsAttr(SourceRange R, ASTContext &Ctx | |||
4179 | , unsigned SI | |||
4180 | ) | |||
4181 | : InheritableAttr(attr::MicroMips, R, SI, false, false) | |||
4182 | { | |||
4183 | } | |||
4184 | ||||
4185 | MicroMipsAttr *clone(ASTContext &C) const; | |||
4186 | void printPretty(raw_ostream &OS, | |||
4187 | const PrintingPolicy &Policy) const; | |||
4188 | const char *getSpelling() const; | |||
4189 | ||||
4190 | ||||
4191 | static bool classof(const Attr *A) { return A->getKind() == attr::MicroMips; } | |||
4192 | }; | |||
4193 | ||||
4194 | class MinSizeAttr : public InheritableAttr { | |||
4195 | public: | |||
4196 | static MinSizeAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4197 | auto *A = new (Ctx) MinSizeAttr(Loc, Ctx, 0); | |||
4198 | A->setImplicit(true); | |||
4199 | return A; | |||
4200 | } | |||
4201 | ||||
4202 | MinSizeAttr(SourceRange R, ASTContext &Ctx | |||
4203 | , unsigned SI | |||
4204 | ) | |||
4205 | : InheritableAttr(attr::MinSize, R, SI, false, false) | |||
4206 | { | |||
4207 | } | |||
4208 | ||||
4209 | MinSizeAttr *clone(ASTContext &C) const; | |||
4210 | void printPretty(raw_ostream &OS, | |||
4211 | const PrintingPolicy &Policy) const; | |||
4212 | const char *getSpelling() const; | |||
4213 | ||||
4214 | ||||
4215 | static bool classof(const Attr *A) { return A->getKind() == attr::MinSize; } | |||
4216 | }; | |||
4217 | ||||
4218 | class Mips16Attr : public InheritableAttr { | |||
4219 | public: | |||
4220 | static Mips16Attr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4221 | auto *A = new (Ctx) Mips16Attr(Loc, Ctx, 0); | |||
4222 | A->setImplicit(true); | |||
4223 | return A; | |||
4224 | } | |||
4225 | ||||
4226 | Mips16Attr(SourceRange R, ASTContext &Ctx | |||
4227 | , unsigned SI | |||
4228 | ) | |||
4229 | : InheritableAttr(attr::Mips16, R, SI, false, false) | |||
4230 | { | |||
4231 | } | |||
4232 | ||||
4233 | Mips16Attr *clone(ASTContext &C) const; | |||
4234 | void printPretty(raw_ostream &OS, | |||
4235 | const PrintingPolicy &Policy) const; | |||
4236 | const char *getSpelling() const; | |||
4237 | ||||
4238 | ||||
4239 | static bool classof(const Attr *A) { return A->getKind() == attr::Mips16; } | |||
4240 | }; | |||
4241 | ||||
4242 | class MipsInterruptAttr : public InheritableAttr { | |||
4243 | public: | |||
4244 | enum InterruptType { | |||
4245 | sw0, | |||
4246 | sw1, | |||
4247 | hw0, | |||
4248 | hw1, | |||
4249 | hw2, | |||
4250 | hw3, | |||
4251 | hw4, | |||
4252 | hw5, | |||
4253 | eic | |||
4254 | }; | |||
4255 | private: | |||
4256 | InterruptType interrupt; | |||
4257 | ||||
4258 | public: | |||
4259 | static MipsInterruptAttr *CreateImplicit(ASTContext &Ctx, InterruptType Interrupt, SourceRange Loc = SourceRange()) { | |||
4260 | auto *A = new (Ctx) MipsInterruptAttr(Loc, Ctx, Interrupt, 0); | |||
4261 | A->setImplicit(true); | |||
4262 | return A; | |||
4263 | } | |||
4264 | ||||
4265 | MipsInterruptAttr(SourceRange R, ASTContext &Ctx | |||
4266 | , InterruptType Interrupt | |||
4267 | , unsigned SI | |||
4268 | ) | |||
4269 | : InheritableAttr(attr::MipsInterrupt, R, SI, false, false) | |||
4270 | , interrupt(Interrupt) | |||
4271 | { | |||
4272 | } | |||
4273 | ||||
4274 | MipsInterruptAttr *clone(ASTContext &C) const; | |||
4275 | void printPretty(raw_ostream &OS, | |||
4276 | const PrintingPolicy &Policy) const; | |||
4277 | const char *getSpelling() const; | |||
4278 | InterruptType getInterrupt() const { | |||
4279 | return interrupt; | |||
4280 | } | |||
4281 | ||||
4282 | static bool ConvertStrToInterruptType(StringRef Val, InterruptType &Out) { | |||
4283 | Optional<InterruptType> R = llvm::StringSwitch<Optional<InterruptType>>(Val) | |||
4284 | .Case("vector=sw0", MipsInterruptAttr::sw0) | |||
4285 | .Case("vector=sw1", MipsInterruptAttr::sw1) | |||
4286 | .Case("vector=hw0", MipsInterruptAttr::hw0) | |||
4287 | .Case("vector=hw1", MipsInterruptAttr::hw1) | |||
4288 | .Case("vector=hw2", MipsInterruptAttr::hw2) | |||
4289 | .Case("vector=hw3", MipsInterruptAttr::hw3) | |||
4290 | .Case("vector=hw4", MipsInterruptAttr::hw4) | |||
4291 | .Case("vector=hw5", MipsInterruptAttr::hw5) | |||
4292 | .Case("eic", MipsInterruptAttr::eic) | |||
4293 | .Case("", MipsInterruptAttr::eic) | |||
4294 | .Default(Optional<InterruptType>()); | |||
4295 | if (R) { | |||
4296 | Out = *R; | |||
4297 | return true; | |||
4298 | } | |||
4299 | return false; | |||
4300 | } | |||
4301 | ||||
4302 | static const char *ConvertInterruptTypeToStr(InterruptType Val) { | |||
4303 | switch(Val) { | |||
4304 | case MipsInterruptAttr::sw0: return "vector=sw0"; | |||
4305 | case MipsInterruptAttr::sw1: return "vector=sw1"; | |||
4306 | case MipsInterruptAttr::hw0: return "vector=hw0"; | |||
4307 | case MipsInterruptAttr::hw1: return "vector=hw1"; | |||
4308 | case MipsInterruptAttr::hw2: return "vector=hw2"; | |||
4309 | case MipsInterruptAttr::hw3: return "vector=hw3"; | |||
4310 | case MipsInterruptAttr::hw4: return "vector=hw4"; | |||
4311 | case MipsInterruptAttr::hw5: return "vector=hw5"; | |||
4312 | case MipsInterruptAttr::eic: return "eic"; | |||
4313 | } | |||
4314 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 4314); | |||
4315 | } | |||
4316 | ||||
4317 | ||||
4318 | static bool classof(const Attr *A) { return A->getKind() == attr::MipsInterrupt; } | |||
4319 | }; | |||
4320 | ||||
4321 | class MipsLongCallAttr : public InheritableAttr { | |||
4322 | public: | |||
4323 | enum Spelling { | |||
4324 | GNU_long_call = 0, | |||
4325 | CXX11_gnu_long_call = 1, | |||
4326 | GNU_far = 2, | |||
4327 | CXX11_gnu_far = 3 | |||
4328 | }; | |||
4329 | ||||
4330 | static MipsLongCallAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
4331 | auto *A = new (Ctx) MipsLongCallAttr(Loc, Ctx, S); | |||
4332 | A->setImplicit(true); | |||
4333 | return A; | |||
4334 | } | |||
4335 | ||||
4336 | MipsLongCallAttr(SourceRange R, ASTContext &Ctx | |||
4337 | , unsigned SI | |||
4338 | ) | |||
4339 | : InheritableAttr(attr::MipsLongCall, R, SI, false, false) | |||
4340 | { | |||
4341 | } | |||
4342 | ||||
4343 | MipsLongCallAttr *clone(ASTContext &C) const; | |||
4344 | void printPretty(raw_ostream &OS, | |||
4345 | const PrintingPolicy &Policy) const; | |||
4346 | const char *getSpelling() const; | |||
4347 | Spelling getSemanticSpelling() const { | |||
4348 | switch (SpellingListIndex) { | |||
4349 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 4349); | |||
4350 | case 0: return GNU_long_call; | |||
4351 | case 1: return CXX11_gnu_long_call; | |||
4352 | case 2: return GNU_far; | |||
4353 | case 3: return CXX11_gnu_far; | |||
4354 | } | |||
4355 | } | |||
4356 | ||||
4357 | ||||
4358 | static bool classof(const Attr *A) { return A->getKind() == attr::MipsLongCall; } | |||
4359 | }; | |||
4360 | ||||
4361 | class MipsShortCallAttr : public InheritableAttr { | |||
4362 | public: | |||
4363 | enum Spelling { | |||
4364 | GNU_short_call = 0, | |||
4365 | CXX11_gnu_short_call = 1, | |||
4366 | GNU_near = 2, | |||
4367 | CXX11_gnu_near = 3 | |||
4368 | }; | |||
4369 | ||||
4370 | static MipsShortCallAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
4371 | auto *A = new (Ctx) MipsShortCallAttr(Loc, Ctx, S); | |||
4372 | A->setImplicit(true); | |||
4373 | return A; | |||
4374 | } | |||
4375 | ||||
4376 | MipsShortCallAttr(SourceRange R, ASTContext &Ctx | |||
4377 | , unsigned SI | |||
4378 | ) | |||
4379 | : InheritableAttr(attr::MipsShortCall, R, SI, false, false) | |||
4380 | { | |||
4381 | } | |||
4382 | ||||
4383 | MipsShortCallAttr *clone(ASTContext &C) const; | |||
4384 | void printPretty(raw_ostream &OS, | |||
4385 | const PrintingPolicy &Policy) const; | |||
4386 | const char *getSpelling() const; | |||
4387 | Spelling getSemanticSpelling() const { | |||
4388 | switch (SpellingListIndex) { | |||
4389 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 4389); | |||
4390 | case 0: return GNU_short_call; | |||
4391 | case 1: return CXX11_gnu_short_call; | |||
4392 | case 2: return GNU_near; | |||
4393 | case 3: return CXX11_gnu_near; | |||
4394 | } | |||
4395 | } | |||
4396 | ||||
4397 | ||||
4398 | static bool classof(const Attr *A) { return A->getKind() == attr::MipsShortCall; } | |||
4399 | }; | |||
4400 | ||||
4401 | class ModeAttr : public Attr { | |||
4402 | IdentifierInfo * mode; | |||
4403 | ||||
4404 | public: | |||
4405 | static ModeAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * Mode, SourceRange Loc = SourceRange()) { | |||
4406 | auto *A = new (Ctx) ModeAttr(Loc, Ctx, Mode, 0); | |||
4407 | A->setImplicit(true); | |||
4408 | return A; | |||
4409 | } | |||
4410 | ||||
4411 | ModeAttr(SourceRange R, ASTContext &Ctx | |||
4412 | , IdentifierInfo * Mode | |||
4413 | , unsigned SI | |||
4414 | ) | |||
4415 | : Attr(attr::Mode, R, SI, false) | |||
4416 | , mode(Mode) | |||
4417 | { | |||
4418 | } | |||
4419 | ||||
4420 | ModeAttr *clone(ASTContext &C) const; | |||
4421 | void printPretty(raw_ostream &OS, | |||
4422 | const PrintingPolicy &Policy) const; | |||
4423 | const char *getSpelling() const; | |||
4424 | IdentifierInfo * getMode() const { | |||
4425 | return mode; | |||
4426 | } | |||
4427 | ||||
4428 | ||||
4429 | ||||
4430 | static bool classof(const Attr *A) { return A->getKind() == attr::Mode; } | |||
4431 | }; | |||
4432 | ||||
4433 | class NSConsumedAttr : public InheritableParamAttr { | |||
4434 | public: | |||
4435 | static NSConsumedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4436 | auto *A = new (Ctx) NSConsumedAttr(Loc, Ctx, 0); | |||
4437 | A->setImplicit(true); | |||
4438 | return A; | |||
4439 | } | |||
4440 | ||||
4441 | NSConsumedAttr(SourceRange R, ASTContext &Ctx | |||
4442 | , unsigned SI | |||
4443 | ) | |||
4444 | : InheritableParamAttr(attr::NSConsumed, R, SI, false, false) | |||
4445 | { | |||
4446 | } | |||
4447 | ||||
4448 | NSConsumedAttr *clone(ASTContext &C) const; | |||
4449 | void printPretty(raw_ostream &OS, | |||
4450 | const PrintingPolicy &Policy) const; | |||
4451 | const char *getSpelling() const; | |||
4452 | ||||
4453 | ||||
4454 | static bool classof(const Attr *A) { return A->getKind() == attr::NSConsumed; } | |||
4455 | }; | |||
4456 | ||||
4457 | class NSConsumesSelfAttr : public InheritableAttr { | |||
4458 | public: | |||
4459 | static NSConsumesSelfAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4460 | auto *A = new (Ctx) NSConsumesSelfAttr(Loc, Ctx, 0); | |||
4461 | A->setImplicit(true); | |||
4462 | return A; | |||
4463 | } | |||
4464 | ||||
4465 | NSConsumesSelfAttr(SourceRange R, ASTContext &Ctx | |||
4466 | , unsigned SI | |||
4467 | ) | |||
4468 | : InheritableAttr(attr::NSConsumesSelf, R, SI, false, false) | |||
4469 | { | |||
4470 | } | |||
4471 | ||||
4472 | NSConsumesSelfAttr *clone(ASTContext &C) const; | |||
4473 | void printPretty(raw_ostream &OS, | |||
4474 | const PrintingPolicy &Policy) const; | |||
4475 | const char *getSpelling() const; | |||
4476 | ||||
4477 | ||||
4478 | static bool classof(const Attr *A) { return A->getKind() == attr::NSConsumesSelf; } | |||
4479 | }; | |||
4480 | ||||
4481 | class NSReturnsAutoreleasedAttr : public InheritableAttr { | |||
4482 | public: | |||
4483 | static NSReturnsAutoreleasedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4484 | auto *A = new (Ctx) NSReturnsAutoreleasedAttr(Loc, Ctx, 0); | |||
4485 | A->setImplicit(true); | |||
4486 | return A; | |||
4487 | } | |||
4488 | ||||
4489 | NSReturnsAutoreleasedAttr(SourceRange R, ASTContext &Ctx | |||
4490 | , unsigned SI | |||
4491 | ) | |||
4492 | : InheritableAttr(attr::NSReturnsAutoreleased, R, SI, false, false) | |||
4493 | { | |||
4494 | } | |||
4495 | ||||
4496 | NSReturnsAutoreleasedAttr *clone(ASTContext &C) const; | |||
4497 | void printPretty(raw_ostream &OS, | |||
4498 | const PrintingPolicy &Policy) const; | |||
4499 | const char *getSpelling() const; | |||
4500 | ||||
4501 | ||||
4502 | static bool classof(const Attr *A) { return A->getKind() == attr::NSReturnsAutoreleased; } | |||
4503 | }; | |||
4504 | ||||
4505 | class NSReturnsNotRetainedAttr : public InheritableAttr { | |||
4506 | public: | |||
4507 | static NSReturnsNotRetainedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4508 | auto *A = new (Ctx) NSReturnsNotRetainedAttr(Loc, Ctx, 0); | |||
4509 | A->setImplicit(true); | |||
4510 | return A; | |||
4511 | } | |||
4512 | ||||
4513 | NSReturnsNotRetainedAttr(SourceRange R, ASTContext &Ctx | |||
4514 | , unsigned SI | |||
4515 | ) | |||
4516 | : InheritableAttr(attr::NSReturnsNotRetained, R, SI, false, false) | |||
4517 | { | |||
4518 | } | |||
4519 | ||||
4520 | NSReturnsNotRetainedAttr *clone(ASTContext &C) const; | |||
4521 | void printPretty(raw_ostream &OS, | |||
4522 | const PrintingPolicy &Policy) const; | |||
4523 | const char *getSpelling() const; | |||
4524 | ||||
4525 | ||||
4526 | static bool classof(const Attr *A) { return A->getKind() == attr::NSReturnsNotRetained; } | |||
4527 | }; | |||
4528 | ||||
4529 | class NSReturnsRetainedAttr : public InheritableAttr { | |||
4530 | public: | |||
4531 | static NSReturnsRetainedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4532 | auto *A = new (Ctx) NSReturnsRetainedAttr(Loc, Ctx, 0); | |||
4533 | A->setImplicit(true); | |||
4534 | return A; | |||
4535 | } | |||
4536 | ||||
4537 | NSReturnsRetainedAttr(SourceRange R, ASTContext &Ctx | |||
4538 | , unsigned SI | |||
4539 | ) | |||
4540 | : InheritableAttr(attr::NSReturnsRetained, R, SI, false, false) | |||
4541 | { | |||
4542 | } | |||
4543 | ||||
4544 | NSReturnsRetainedAttr *clone(ASTContext &C) const; | |||
4545 | void printPretty(raw_ostream &OS, | |||
4546 | const PrintingPolicy &Policy) const; | |||
4547 | const char *getSpelling() const; | |||
4548 | ||||
4549 | ||||
4550 | static bool classof(const Attr *A) { return A->getKind() == attr::NSReturnsRetained; } | |||
4551 | }; | |||
4552 | ||||
4553 | class NakedAttr : public InheritableAttr { | |||
4554 | public: | |||
4555 | static NakedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4556 | auto *A = new (Ctx) NakedAttr(Loc, Ctx, 0); | |||
4557 | A->setImplicit(true); | |||
4558 | return A; | |||
4559 | } | |||
4560 | ||||
4561 | NakedAttr(SourceRange R, ASTContext &Ctx | |||
4562 | , unsigned SI | |||
4563 | ) | |||
4564 | : InheritableAttr(attr::Naked, R, SI, false, false) | |||
4565 | { | |||
4566 | } | |||
4567 | ||||
4568 | NakedAttr *clone(ASTContext &C) const; | |||
4569 | void printPretty(raw_ostream &OS, | |||
4570 | const PrintingPolicy &Policy) const; | |||
4571 | const char *getSpelling() const; | |||
4572 | ||||
4573 | ||||
4574 | static bool classof(const Attr *A) { return A->getKind() == attr::Naked; } | |||
4575 | }; | |||
4576 | ||||
4577 | class NoAliasAttr : public InheritableAttr { | |||
4578 | public: | |||
4579 | static NoAliasAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4580 | auto *A = new (Ctx) NoAliasAttr(Loc, Ctx, 0); | |||
4581 | A->setImplicit(true); | |||
4582 | return A; | |||
4583 | } | |||
4584 | ||||
4585 | NoAliasAttr(SourceRange R, ASTContext &Ctx | |||
4586 | , unsigned SI | |||
4587 | ) | |||
4588 | : InheritableAttr(attr::NoAlias, R, SI, false, false) | |||
4589 | { | |||
4590 | } | |||
4591 | ||||
4592 | NoAliasAttr *clone(ASTContext &C) const; | |||
4593 | void printPretty(raw_ostream &OS, | |||
4594 | const PrintingPolicy &Policy) const; | |||
4595 | const char *getSpelling() const; | |||
4596 | ||||
4597 | ||||
4598 | static bool classof(const Attr *A) { return A->getKind() == attr::NoAlias; } | |||
4599 | }; | |||
4600 | ||||
4601 | class NoCommonAttr : public InheritableAttr { | |||
4602 | public: | |||
4603 | static NoCommonAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4604 | auto *A = new (Ctx) NoCommonAttr(Loc, Ctx, 0); | |||
4605 | A->setImplicit(true); | |||
4606 | return A; | |||
4607 | } | |||
4608 | ||||
4609 | NoCommonAttr(SourceRange R, ASTContext &Ctx | |||
4610 | , unsigned SI | |||
4611 | ) | |||
4612 | : InheritableAttr(attr::NoCommon, R, SI, false, false) | |||
4613 | { | |||
4614 | } | |||
4615 | ||||
4616 | NoCommonAttr *clone(ASTContext &C) const; | |||
4617 | void printPretty(raw_ostream &OS, | |||
4618 | const PrintingPolicy &Policy) const; | |||
4619 | const char *getSpelling() const; | |||
4620 | ||||
4621 | ||||
4622 | static bool classof(const Attr *A) { return A->getKind() == attr::NoCommon; } | |||
4623 | }; | |||
4624 | ||||
4625 | class NoDebugAttr : public InheritableAttr { | |||
4626 | public: | |||
4627 | static NoDebugAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4628 | auto *A = new (Ctx) NoDebugAttr(Loc, Ctx, 0); | |||
4629 | A->setImplicit(true); | |||
4630 | return A; | |||
4631 | } | |||
4632 | ||||
4633 | NoDebugAttr(SourceRange R, ASTContext &Ctx | |||
4634 | , unsigned SI | |||
4635 | ) | |||
4636 | : InheritableAttr(attr::NoDebug, R, SI, false, false) | |||
4637 | { | |||
4638 | } | |||
4639 | ||||
4640 | NoDebugAttr *clone(ASTContext &C) const; | |||
4641 | void printPretty(raw_ostream &OS, | |||
4642 | const PrintingPolicy &Policy) const; | |||
4643 | const char *getSpelling() const; | |||
4644 | ||||
4645 | ||||
4646 | static bool classof(const Attr *A) { return A->getKind() == attr::NoDebug; } | |||
4647 | }; | |||
4648 | ||||
4649 | class NoDuplicateAttr : public InheritableAttr { | |||
4650 | public: | |||
4651 | static NoDuplicateAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4652 | auto *A = new (Ctx) NoDuplicateAttr(Loc, Ctx, 0); | |||
4653 | A->setImplicit(true); | |||
4654 | return A; | |||
4655 | } | |||
4656 | ||||
4657 | NoDuplicateAttr(SourceRange R, ASTContext &Ctx | |||
4658 | , unsigned SI | |||
4659 | ) | |||
4660 | : InheritableAttr(attr::NoDuplicate, R, SI, false, false) | |||
4661 | { | |||
4662 | } | |||
4663 | ||||
4664 | NoDuplicateAttr *clone(ASTContext &C) const; | |||
4665 | void printPretty(raw_ostream &OS, | |||
4666 | const PrintingPolicy &Policy) const; | |||
4667 | const char *getSpelling() const; | |||
4668 | ||||
4669 | ||||
4670 | static bool classof(const Attr *A) { return A->getKind() == attr::NoDuplicate; } | |||
4671 | }; | |||
4672 | ||||
4673 | class NoEscapeAttr : public Attr { | |||
4674 | public: | |||
4675 | static NoEscapeAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4676 | auto *A = new (Ctx) NoEscapeAttr(Loc, Ctx, 0); | |||
4677 | A->setImplicit(true); | |||
4678 | return A; | |||
4679 | } | |||
4680 | ||||
4681 | NoEscapeAttr(SourceRange R, ASTContext &Ctx | |||
4682 | , unsigned SI | |||
4683 | ) | |||
4684 | : Attr(attr::NoEscape, R, SI, false) | |||
4685 | { | |||
4686 | } | |||
4687 | ||||
4688 | NoEscapeAttr *clone(ASTContext &C) const; | |||
4689 | void printPretty(raw_ostream &OS, | |||
4690 | const PrintingPolicy &Policy) const; | |||
4691 | const char *getSpelling() const; | |||
4692 | ||||
4693 | ||||
4694 | static bool classof(const Attr *A) { return A->getKind() == attr::NoEscape; } | |||
4695 | }; | |||
4696 | ||||
4697 | class NoInlineAttr : public InheritableAttr { | |||
4698 | public: | |||
4699 | static NoInlineAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4700 | auto *A = new (Ctx) NoInlineAttr(Loc, Ctx, 0); | |||
4701 | A->setImplicit(true); | |||
4702 | return A; | |||
4703 | } | |||
4704 | ||||
4705 | NoInlineAttr(SourceRange R, ASTContext &Ctx | |||
4706 | , unsigned SI | |||
4707 | ) | |||
4708 | : InheritableAttr(attr::NoInline, R, SI, false, false) | |||
4709 | { | |||
4710 | } | |||
4711 | ||||
4712 | NoInlineAttr *clone(ASTContext &C) const; | |||
4713 | void printPretty(raw_ostream &OS, | |||
4714 | const PrintingPolicy &Policy) const; | |||
4715 | const char *getSpelling() const; | |||
4716 | ||||
4717 | ||||
4718 | static bool classof(const Attr *A) { return A->getKind() == attr::NoInline; } | |||
4719 | }; | |||
4720 | ||||
4721 | class NoInstrumentFunctionAttr : public InheritableAttr { | |||
4722 | public: | |||
4723 | static NoInstrumentFunctionAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4724 | auto *A = new (Ctx) NoInstrumentFunctionAttr(Loc, Ctx, 0); | |||
4725 | A->setImplicit(true); | |||
4726 | return A; | |||
4727 | } | |||
4728 | ||||
4729 | NoInstrumentFunctionAttr(SourceRange R, ASTContext &Ctx | |||
4730 | , unsigned SI | |||
4731 | ) | |||
4732 | : InheritableAttr(attr::NoInstrumentFunction, R, SI, false, false) | |||
4733 | { | |||
4734 | } | |||
4735 | ||||
4736 | NoInstrumentFunctionAttr *clone(ASTContext &C) const; | |||
4737 | void printPretty(raw_ostream &OS, | |||
4738 | const PrintingPolicy &Policy) const; | |||
4739 | const char *getSpelling() const; | |||
4740 | ||||
4741 | ||||
4742 | static bool classof(const Attr *A) { return A->getKind() == attr::NoInstrumentFunction; } | |||
4743 | }; | |||
4744 | ||||
4745 | class NoMicroMipsAttr : public InheritableAttr { | |||
4746 | public: | |||
4747 | static NoMicroMipsAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4748 | auto *A = new (Ctx) NoMicroMipsAttr(Loc, Ctx, 0); | |||
4749 | A->setImplicit(true); | |||
4750 | return A; | |||
4751 | } | |||
4752 | ||||
4753 | NoMicroMipsAttr(SourceRange R, ASTContext &Ctx | |||
4754 | , unsigned SI | |||
4755 | ) | |||
4756 | : InheritableAttr(attr::NoMicroMips, R, SI, false, false) | |||
4757 | { | |||
4758 | } | |||
4759 | ||||
4760 | NoMicroMipsAttr *clone(ASTContext &C) const; | |||
4761 | void printPretty(raw_ostream &OS, | |||
4762 | const PrintingPolicy &Policy) const; | |||
4763 | const char *getSpelling() const; | |||
4764 | ||||
4765 | ||||
4766 | static bool classof(const Attr *A) { return A->getKind() == attr::NoMicroMips; } | |||
4767 | }; | |||
4768 | ||||
4769 | class NoMips16Attr : public InheritableAttr { | |||
4770 | public: | |||
4771 | static NoMips16Attr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4772 | auto *A = new (Ctx) NoMips16Attr(Loc, Ctx, 0); | |||
4773 | A->setImplicit(true); | |||
4774 | return A; | |||
4775 | } | |||
4776 | ||||
4777 | NoMips16Attr(SourceRange R, ASTContext &Ctx | |||
4778 | , unsigned SI | |||
4779 | ) | |||
4780 | : InheritableAttr(attr::NoMips16, R, SI, false, false) | |||
4781 | { | |||
4782 | } | |||
4783 | ||||
4784 | NoMips16Attr *clone(ASTContext &C) const; | |||
4785 | void printPretty(raw_ostream &OS, | |||
4786 | const PrintingPolicy &Policy) const; | |||
4787 | const char *getSpelling() const; | |||
4788 | ||||
4789 | ||||
4790 | static bool classof(const Attr *A) { return A->getKind() == attr::NoMips16; } | |||
4791 | }; | |||
4792 | ||||
4793 | class NoReturnAttr : public InheritableAttr { | |||
4794 | public: | |||
4795 | static NoReturnAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4796 | auto *A = new (Ctx) NoReturnAttr(Loc, Ctx, 0); | |||
4797 | A->setImplicit(true); | |||
4798 | return A; | |||
4799 | } | |||
4800 | ||||
4801 | NoReturnAttr(SourceRange R, ASTContext &Ctx | |||
4802 | , unsigned SI | |||
4803 | ) | |||
4804 | : InheritableAttr(attr::NoReturn, R, SI, false, false) | |||
4805 | { | |||
4806 | } | |||
4807 | ||||
4808 | NoReturnAttr *clone(ASTContext &C) const; | |||
4809 | void printPretty(raw_ostream &OS, | |||
4810 | const PrintingPolicy &Policy) const; | |||
4811 | const char *getSpelling() const; | |||
4812 | ||||
4813 | ||||
4814 | static bool classof(const Attr *A) { return A->getKind() == attr::NoReturn; } | |||
4815 | }; | |||
4816 | ||||
4817 | class NoSanitizeAttr : public InheritableAttr { | |||
4818 | unsigned sanitizers_Size; | |||
4819 | StringRef *sanitizers_; | |||
4820 | ||||
4821 | public: | |||
4822 | static NoSanitizeAttr *CreateImplicit(ASTContext &Ctx, StringRef *Sanitizers, unsigned SanitizersSize, SourceRange Loc = SourceRange()) { | |||
4823 | auto *A = new (Ctx) NoSanitizeAttr(Loc, Ctx, Sanitizers, SanitizersSize, 0); | |||
4824 | A->setImplicit(true); | |||
4825 | return A; | |||
4826 | } | |||
4827 | ||||
4828 | NoSanitizeAttr(SourceRange R, ASTContext &Ctx | |||
4829 | , StringRef *Sanitizers, unsigned SanitizersSize | |||
4830 | , unsigned SI | |||
4831 | ) | |||
4832 | : InheritableAttr(attr::NoSanitize, R, SI, false, false) | |||
4833 | , sanitizers_Size(SanitizersSize), sanitizers_(new (Ctx, 16) StringRef[sanitizers_Size]) | |||
4834 | { | |||
4835 | for (size_t I = 0, E = sanitizers_Size; I != E; | |||
4836 | ++I) { | |||
4837 | StringRef Ref = Sanitizers[I]; | |||
4838 | if (!Ref.empty()) { | |||
4839 | char *Mem = new (Ctx, 1) char[Ref.size()]; | |||
4840 | std::memcpy(Mem, Ref.data(), Ref.size()); | |||
4841 | sanitizers_[I] = StringRef(Mem, Ref.size()); | |||
4842 | } | |||
4843 | } | |||
4844 | } | |||
4845 | ||||
4846 | NoSanitizeAttr(SourceRange R, ASTContext &Ctx | |||
4847 | , unsigned SI | |||
4848 | ) | |||
4849 | : InheritableAttr(attr::NoSanitize, R, SI, false, false) | |||
4850 | , sanitizers_Size(0), sanitizers_(nullptr) | |||
4851 | { | |||
4852 | } | |||
4853 | ||||
4854 | NoSanitizeAttr *clone(ASTContext &C) const; | |||
4855 | void printPretty(raw_ostream &OS, | |||
4856 | const PrintingPolicy &Policy) const; | |||
4857 | const char *getSpelling() const; | |||
4858 | typedef StringRef* sanitizers_iterator; | |||
4859 | sanitizers_iterator sanitizers_begin() const { return sanitizers_; } | |||
4860 | sanitizers_iterator sanitizers_end() const { return sanitizers_ + sanitizers_Size; } | |||
4861 | unsigned sanitizers_size() const { return sanitizers_Size; } | |||
4862 | llvm::iterator_range<sanitizers_iterator> sanitizers() const { return llvm::make_range(sanitizers_begin(), sanitizers_end()); } | |||
4863 | ||||
4864 | ||||
4865 | ||||
4866 | SanitizerMask getMask() const { | |||
4867 | SanitizerMask Mask = 0; | |||
4868 | for (auto SanitizerName : sanitizers()) { | |||
4869 | SanitizerMask ParsedMask = | |||
4870 | parseSanitizerValue(SanitizerName, /*AllowGroups=*/true); | |||
4871 | Mask |= expandSanitizerGroups(ParsedMask); | |||
4872 | } | |||
4873 | return Mask; | |||
4874 | } | |||
4875 | ||||
4876 | ||||
4877 | static bool classof(const Attr *A) { return A->getKind() == attr::NoSanitize; } | |||
4878 | }; | |||
4879 | ||||
4880 | class NoSplitStackAttr : public InheritableAttr { | |||
4881 | public: | |||
4882 | static NoSplitStackAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4883 | auto *A = new (Ctx) NoSplitStackAttr(Loc, Ctx, 0); | |||
4884 | A->setImplicit(true); | |||
4885 | return A; | |||
4886 | } | |||
4887 | ||||
4888 | NoSplitStackAttr(SourceRange R, ASTContext &Ctx | |||
4889 | , unsigned SI | |||
4890 | ) | |||
4891 | : InheritableAttr(attr::NoSplitStack, R, SI, false, false) | |||
4892 | { | |||
4893 | } | |||
4894 | ||||
4895 | NoSplitStackAttr *clone(ASTContext &C) const; | |||
4896 | void printPretty(raw_ostream &OS, | |||
4897 | const PrintingPolicy &Policy) const; | |||
4898 | const char *getSpelling() const; | |||
4899 | ||||
4900 | ||||
4901 | static bool classof(const Attr *A) { return A->getKind() == attr::NoSplitStack; } | |||
4902 | }; | |||
4903 | ||||
4904 | class NoThreadSafetyAnalysisAttr : public InheritableAttr { | |||
4905 | public: | |||
4906 | static NoThreadSafetyAnalysisAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4907 | auto *A = new (Ctx) NoThreadSafetyAnalysisAttr(Loc, Ctx, 0); | |||
4908 | A->setImplicit(true); | |||
4909 | return A; | |||
4910 | } | |||
4911 | ||||
4912 | NoThreadSafetyAnalysisAttr(SourceRange R, ASTContext &Ctx | |||
4913 | , unsigned SI | |||
4914 | ) | |||
4915 | : InheritableAttr(attr::NoThreadSafetyAnalysis, R, SI, false, false) | |||
4916 | { | |||
4917 | } | |||
4918 | ||||
4919 | NoThreadSafetyAnalysisAttr *clone(ASTContext &C) const; | |||
4920 | void printPretty(raw_ostream &OS, | |||
4921 | const PrintingPolicy &Policy) const; | |||
4922 | const char *getSpelling() const; | |||
4923 | ||||
4924 | ||||
4925 | static bool classof(const Attr *A) { return A->getKind() == attr::NoThreadSafetyAnalysis; } | |||
4926 | }; | |||
4927 | ||||
4928 | class NoThrowAttr : public InheritableAttr { | |||
4929 | public: | |||
4930 | static NoThrowAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
4931 | auto *A = new (Ctx) NoThrowAttr(Loc, Ctx, 0); | |||
4932 | A->setImplicit(true); | |||
4933 | return A; | |||
4934 | } | |||
4935 | ||||
4936 | NoThrowAttr(SourceRange R, ASTContext &Ctx | |||
4937 | , unsigned SI | |||
4938 | ) | |||
4939 | : InheritableAttr(attr::NoThrow, R, SI, false, false) | |||
4940 | { | |||
4941 | } | |||
4942 | ||||
4943 | NoThrowAttr *clone(ASTContext &C) const; | |||
4944 | void printPretty(raw_ostream &OS, | |||
4945 | const PrintingPolicy &Policy) const; | |||
4946 | const char *getSpelling() const; | |||
4947 | ||||
4948 | ||||
4949 | static bool classof(const Attr *A) { return A->getKind() == attr::NoThrow; } | |||
4950 | }; | |||
4951 | ||||
4952 | class NonNullAttr : public InheritableParamAttr { | |||
4953 | unsigned args_Size; | |||
4954 | ParamIdx *args_; | |||
4955 | ||||
4956 | public: | |||
4957 | static NonNullAttr *CreateImplicit(ASTContext &Ctx, ParamIdx *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
4958 | auto *A = new (Ctx) NonNullAttr(Loc, Ctx, Args, ArgsSize, 0); | |||
4959 | A->setImplicit(true); | |||
4960 | return A; | |||
4961 | } | |||
4962 | ||||
4963 | NonNullAttr(SourceRange R, ASTContext &Ctx | |||
4964 | , ParamIdx *Args, unsigned ArgsSize | |||
4965 | , unsigned SI | |||
4966 | ) | |||
4967 | : InheritableParamAttr(attr::NonNull, R, SI, false, true) | |||
4968 | , args_Size(ArgsSize), args_(new (Ctx, 16) ParamIdx[args_Size]) | |||
4969 | { | |||
4970 | std::copy(Args, Args + args_Size, args_); | |||
4971 | } | |||
4972 | ||||
4973 | NonNullAttr(SourceRange R, ASTContext &Ctx | |||
4974 | , unsigned SI | |||
4975 | ) | |||
4976 | : InheritableParamAttr(attr::NonNull, R, SI, false, true) | |||
4977 | , args_Size(0), args_(nullptr) | |||
4978 | { | |||
4979 | } | |||
4980 | ||||
4981 | NonNullAttr *clone(ASTContext &C) const; | |||
4982 | void printPretty(raw_ostream &OS, | |||
4983 | const PrintingPolicy &Policy) const; | |||
4984 | const char *getSpelling() const; | |||
4985 | typedef ParamIdx* args_iterator; | |||
4986 | args_iterator args_begin() const { return args_; } | |||
4987 | args_iterator args_end() const { return args_ + args_Size; } | |||
4988 | unsigned args_size() const { return args_Size; } | |||
4989 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
4990 | ||||
4991 | ||||
4992 | ||||
4993 | bool isNonNull(unsigned IdxAST) const { | |||
4994 | if (!args_size()) | |||
4995 | return true; | |||
4996 | return args_end() != std::find_if( | |||
4997 | args_begin(), args_end(), | |||
4998 | [=](const ParamIdx &Idx) { return Idx.getASTIndex() == IdxAST; }); | |||
4999 | } | |||
5000 | ||||
5001 | ||||
5002 | static bool classof(const Attr *A) { return A->getKind() == attr::NonNull; } | |||
5003 | }; | |||
5004 | ||||
5005 | class NotTailCalledAttr : public InheritableAttr { | |||
5006 | public: | |||
5007 | static NotTailCalledAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5008 | auto *A = new (Ctx) NotTailCalledAttr(Loc, Ctx, 0); | |||
5009 | A->setImplicit(true); | |||
5010 | return A; | |||
5011 | } | |||
5012 | ||||
5013 | NotTailCalledAttr(SourceRange R, ASTContext &Ctx | |||
5014 | , unsigned SI | |||
5015 | ) | |||
5016 | : InheritableAttr(attr::NotTailCalled, R, SI, false, false) | |||
5017 | { | |||
5018 | } | |||
5019 | ||||
5020 | NotTailCalledAttr *clone(ASTContext &C) const; | |||
5021 | void printPretty(raw_ostream &OS, | |||
5022 | const PrintingPolicy &Policy) const; | |||
5023 | const char *getSpelling() const; | |||
5024 | ||||
5025 | ||||
5026 | static bool classof(const Attr *A) { return A->getKind() == attr::NotTailCalled; } | |||
5027 | }; | |||
5028 | ||||
5029 | class OMPCaptureKindAttr : public Attr { | |||
5030 | unsigned captureKind; | |||
5031 | ||||
5032 | public: | |||
5033 | static OMPCaptureKindAttr *CreateImplicit(ASTContext &Ctx, unsigned CaptureKind, SourceRange Loc = SourceRange()) { | |||
5034 | auto *A = new (Ctx) OMPCaptureKindAttr(Loc, Ctx, CaptureKind, 0); | |||
5035 | A->setImplicit(true); | |||
5036 | return A; | |||
5037 | } | |||
5038 | ||||
5039 | OMPCaptureKindAttr(SourceRange R, ASTContext &Ctx | |||
5040 | , unsigned CaptureKind | |||
5041 | , unsigned SI | |||
5042 | ) | |||
5043 | : Attr(attr::OMPCaptureKind, R, SI, false) | |||
5044 | , captureKind(CaptureKind) | |||
5045 | { | |||
5046 | } | |||
5047 | ||||
5048 | OMPCaptureKindAttr *clone(ASTContext &C) const; | |||
5049 | void printPretty(raw_ostream &OS, | |||
5050 | const PrintingPolicy &Policy) const; | |||
5051 | const char *getSpelling() const; | |||
5052 | unsigned getCaptureKind() const { | |||
5053 | return captureKind; | |||
5054 | } | |||
5055 | ||||
5056 | ||||
5057 | ||||
5058 | static bool classof(const Attr *A) { return A->getKind() == attr::OMPCaptureKind; } | |||
5059 | }; | |||
5060 | ||||
5061 | class OMPCaptureNoInitAttr : public InheritableAttr { | |||
5062 | public: | |||
5063 | static OMPCaptureNoInitAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5064 | auto *A = new (Ctx) OMPCaptureNoInitAttr(Loc, Ctx, 0); | |||
5065 | A->setImplicit(true); | |||
5066 | return A; | |||
5067 | } | |||
5068 | ||||
5069 | OMPCaptureNoInitAttr(SourceRange R, ASTContext &Ctx | |||
5070 | , unsigned SI | |||
5071 | ) | |||
5072 | : InheritableAttr(attr::OMPCaptureNoInit, R, SI, false, false) | |||
5073 | { | |||
5074 | } | |||
5075 | ||||
5076 | OMPCaptureNoInitAttr *clone(ASTContext &C) const; | |||
5077 | void printPretty(raw_ostream &OS, | |||
5078 | const PrintingPolicy &Policy) const; | |||
5079 | const char *getSpelling() const; | |||
5080 | ||||
5081 | ||||
5082 | static bool classof(const Attr *A) { return A->getKind() == attr::OMPCaptureNoInit; } | |||
5083 | }; | |||
5084 | ||||
5085 | class OMPDeclareSimdDeclAttr : public Attr { | |||
5086 | public: | |||
5087 | enum BranchStateTy { | |||
5088 | BS_Undefined, | |||
5089 | BS_Inbranch, | |||
5090 | BS_Notinbranch | |||
5091 | }; | |||
5092 | private: | |||
5093 | BranchStateTy branchState; | |||
5094 | ||||
5095 | Expr * simdlen; | |||
5096 | ||||
5097 | unsigned uniforms_Size; | |||
5098 | Expr * *uniforms_; | |||
5099 | ||||
5100 | unsigned aligneds_Size; | |||
5101 | Expr * *aligneds_; | |||
5102 | ||||
5103 | unsigned alignments_Size; | |||
5104 | Expr * *alignments_; | |||
5105 | ||||
5106 | unsigned linears_Size; | |||
5107 | Expr * *linears_; | |||
5108 | ||||
5109 | unsigned modifiers_Size; | |||
5110 | unsigned *modifiers_; | |||
5111 | ||||
5112 | unsigned steps_Size; | |||
5113 | Expr * *steps_; | |||
5114 | ||||
5115 | public: | |||
5116 | static OMPDeclareSimdDeclAttr *CreateImplicit(ASTContext &Ctx, BranchStateTy BranchState, Expr * Simdlen, Expr * *Uniforms, unsigned UniformsSize, Expr * *Aligneds, unsigned AlignedsSize, Expr * *Alignments, unsigned AlignmentsSize, Expr * *Linears, unsigned LinearsSize, unsigned *Modifiers, unsigned ModifiersSize, Expr * *Steps, unsigned StepsSize, SourceRange Loc = SourceRange()) { | |||
5117 | auto *A = new (Ctx) OMPDeclareSimdDeclAttr(Loc, Ctx, BranchState, Simdlen, Uniforms, UniformsSize, Aligneds, AlignedsSize, Alignments, AlignmentsSize, Linears, LinearsSize, Modifiers, ModifiersSize, Steps, StepsSize, 0); | |||
5118 | A->setImplicit(true); | |||
5119 | return A; | |||
5120 | } | |||
5121 | ||||
5122 | OMPDeclareSimdDeclAttr(SourceRange R, ASTContext &Ctx | |||
5123 | , BranchStateTy BranchState | |||
5124 | , Expr * Simdlen | |||
5125 | , Expr * *Uniforms, unsigned UniformsSize | |||
5126 | , Expr * *Aligneds, unsigned AlignedsSize | |||
5127 | , Expr * *Alignments, unsigned AlignmentsSize | |||
5128 | , Expr * *Linears, unsigned LinearsSize | |||
5129 | , unsigned *Modifiers, unsigned ModifiersSize | |||
5130 | , Expr * *Steps, unsigned StepsSize | |||
5131 | , unsigned SI | |||
5132 | ) | |||
5133 | : Attr(attr::OMPDeclareSimdDecl, R, SI, false) | |||
5134 | , branchState(BranchState) | |||
5135 | , simdlen(Simdlen) | |||
5136 | , uniforms_Size(UniformsSize), uniforms_(new (Ctx, 16) Expr *[uniforms_Size]) | |||
5137 | , aligneds_Size(AlignedsSize), aligneds_(new (Ctx, 16) Expr *[aligneds_Size]) | |||
5138 | , alignments_Size(AlignmentsSize), alignments_(new (Ctx, 16) Expr *[alignments_Size]) | |||
5139 | , linears_Size(LinearsSize), linears_(new (Ctx, 16) Expr *[linears_Size]) | |||
5140 | , modifiers_Size(ModifiersSize), modifiers_(new (Ctx, 16) unsigned[modifiers_Size]) | |||
5141 | , steps_Size(StepsSize), steps_(new (Ctx, 16) Expr *[steps_Size]) | |||
5142 | { | |||
5143 | std::copy(Uniforms, Uniforms + uniforms_Size, uniforms_); | |||
5144 | std::copy(Aligneds, Aligneds + aligneds_Size, aligneds_); | |||
5145 | std::copy(Alignments, Alignments + alignments_Size, alignments_); | |||
5146 | std::copy(Linears, Linears + linears_Size, linears_); | |||
5147 | std::copy(Modifiers, Modifiers + modifiers_Size, modifiers_); | |||
5148 | std::copy(Steps, Steps + steps_Size, steps_); | |||
5149 | } | |||
5150 | ||||
5151 | OMPDeclareSimdDeclAttr(SourceRange R, ASTContext &Ctx | |||
5152 | , BranchStateTy BranchState | |||
5153 | , Expr * Simdlen | |||
5154 | , unsigned SI | |||
5155 | ) | |||
5156 | : Attr(attr::OMPDeclareSimdDecl, R, SI, false) | |||
5157 | , branchState(BranchState) | |||
5158 | , simdlen(Simdlen) | |||
5159 | , uniforms_Size(0), uniforms_(nullptr) | |||
5160 | , aligneds_Size(0), aligneds_(nullptr) | |||
5161 | , alignments_Size(0), alignments_(nullptr) | |||
5162 | , linears_Size(0), linears_(nullptr) | |||
5163 | , modifiers_Size(0), modifiers_(nullptr) | |||
5164 | , steps_Size(0), steps_(nullptr) | |||
5165 | { | |||
5166 | } | |||
5167 | ||||
5168 | OMPDeclareSimdDeclAttr *clone(ASTContext &C) const; | |||
5169 | void printPretty(raw_ostream &OS, | |||
5170 | const PrintingPolicy &Policy) const; | |||
5171 | const char *getSpelling() const; | |||
5172 | BranchStateTy getBranchState() const { | |||
5173 | return branchState; | |||
5174 | } | |||
5175 | ||||
5176 | static bool ConvertStrToBranchStateTy(StringRef Val, BranchStateTy &Out) { | |||
5177 | Optional<BranchStateTy> R = llvm::StringSwitch<Optional<BranchStateTy>>(Val) | |||
5178 | .Case("", OMPDeclareSimdDeclAttr::BS_Undefined) | |||
5179 | .Case("inbranch", OMPDeclareSimdDeclAttr::BS_Inbranch) | |||
5180 | .Case("notinbranch", OMPDeclareSimdDeclAttr::BS_Notinbranch) | |||
5181 | .Default(Optional<BranchStateTy>()); | |||
5182 | if (R) { | |||
5183 | Out = *R; | |||
5184 | return true; | |||
5185 | } | |||
5186 | return false; | |||
5187 | } | |||
5188 | ||||
5189 | static const char *ConvertBranchStateTyToStr(BranchStateTy Val) { | |||
5190 | switch(Val) { | |||
5191 | case OMPDeclareSimdDeclAttr::BS_Undefined: return ""; | |||
5192 | case OMPDeclareSimdDeclAttr::BS_Inbranch: return "inbranch"; | |||
5193 | case OMPDeclareSimdDeclAttr::BS_Notinbranch: return "notinbranch"; | |||
5194 | } | |||
5195 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 5195); | |||
5196 | } | |||
5197 | Expr * getSimdlen() const { | |||
5198 | return simdlen; | |||
5199 | } | |||
5200 | ||||
5201 | typedef Expr ** uniforms_iterator; | |||
5202 | uniforms_iterator uniforms_begin() const { return uniforms_; } | |||
5203 | uniforms_iterator uniforms_end() const { return uniforms_ + uniforms_Size; } | |||
5204 | unsigned uniforms_size() const { return uniforms_Size; } | |||
5205 | llvm::iterator_range<uniforms_iterator> uniforms() const { return llvm::make_range(uniforms_begin(), uniforms_end()); } | |||
5206 | ||||
5207 | ||||
5208 | typedef Expr ** aligneds_iterator; | |||
5209 | aligneds_iterator aligneds_begin() const { return aligneds_; } | |||
5210 | aligneds_iterator aligneds_end() const { return aligneds_ + aligneds_Size; } | |||
5211 | unsigned aligneds_size() const { return aligneds_Size; } | |||
5212 | llvm::iterator_range<aligneds_iterator> aligneds() const { return llvm::make_range(aligneds_begin(), aligneds_end()); } | |||
5213 | ||||
5214 | ||||
5215 | typedef Expr ** alignments_iterator; | |||
5216 | alignments_iterator alignments_begin() const { return alignments_; } | |||
5217 | alignments_iterator alignments_end() const { return alignments_ + alignments_Size; } | |||
5218 | unsigned alignments_size() const { return alignments_Size; } | |||
5219 | llvm::iterator_range<alignments_iterator> alignments() const { return llvm::make_range(alignments_begin(), alignments_end()); } | |||
5220 | ||||
5221 | ||||
5222 | typedef Expr ** linears_iterator; | |||
5223 | linears_iterator linears_begin() const { return linears_; } | |||
5224 | linears_iterator linears_end() const { return linears_ + linears_Size; } | |||
5225 | unsigned linears_size() const { return linears_Size; } | |||
5226 | llvm::iterator_range<linears_iterator> linears() const { return llvm::make_range(linears_begin(), linears_end()); } | |||
5227 | ||||
5228 | ||||
5229 | typedef unsigned* modifiers_iterator; | |||
5230 | modifiers_iterator modifiers_begin() const { return modifiers_; } | |||
5231 | modifiers_iterator modifiers_end() const { return modifiers_ + modifiers_Size; } | |||
5232 | unsigned modifiers_size() const { return modifiers_Size; } | |||
5233 | llvm::iterator_range<modifiers_iterator> modifiers() const { return llvm::make_range(modifiers_begin(), modifiers_end()); } | |||
5234 | ||||
5235 | ||||
5236 | typedef Expr ** steps_iterator; | |||
5237 | steps_iterator steps_begin() const { return steps_; } | |||
5238 | steps_iterator steps_end() const { return steps_ + steps_Size; } | |||
5239 | unsigned steps_size() const { return steps_Size; } | |||
5240 | llvm::iterator_range<steps_iterator> steps() const { return llvm::make_range(steps_begin(), steps_end()); } | |||
5241 | ||||
5242 | ||||
5243 | ||||
5244 | void printPrettyPragma(raw_ostream & OS, const PrintingPolicy &Policy) | |||
5245 | const { | |||
5246 | if (getBranchState() != BS_Undefined) | |||
5247 | OS << ' ' << ConvertBranchStateTyToStr(getBranchState()); | |||
5248 | if (auto *E = getSimdlen()) { | |||
5249 | OS << " simdlen("; | |||
5250 | E->printPretty(OS, nullptr, Policy); | |||
5251 | OS << ")"; | |||
5252 | } | |||
5253 | if (uniforms_size() > 0) { | |||
5254 | OS << " uniform"; | |||
5255 | StringRef Sep = "("; | |||
5256 | for (auto *E : uniforms()) { | |||
5257 | OS << Sep; | |||
5258 | E->printPretty(OS, nullptr, Policy); | |||
5259 | Sep = ", "; | |||
5260 | } | |||
5261 | OS << ")"; | |||
5262 | } | |||
5263 | alignments_iterator NI = alignments_begin(); | |||
5264 | for (auto *E : aligneds()) { | |||
5265 | OS << " aligned("; | |||
5266 | E->printPretty(OS, nullptr, Policy); | |||
5267 | if (*NI) { | |||
5268 | OS << ": "; | |||
5269 | (*NI)->printPretty(OS, nullptr, Policy); | |||
5270 | } | |||
5271 | OS << ")"; | |||
5272 | ++NI; | |||
5273 | } | |||
5274 | steps_iterator I = steps_begin(); | |||
5275 | modifiers_iterator MI = modifiers_begin(); | |||
5276 | for (auto *E : linears()) { | |||
5277 | OS << " linear("; | |||
5278 | if (*MI != OMPC_LINEAR_unknown) | |||
5279 | OS << getOpenMPSimpleClauseTypeName(OMPC_linear, *MI) << "("; | |||
5280 | E->printPretty(OS, nullptr, Policy); | |||
5281 | if (*MI != OMPC_LINEAR_unknown) | |||
5282 | OS << ")"; | |||
5283 | if (*I) { | |||
5284 | OS << ": "; | |||
5285 | (*I)->printPretty(OS, nullptr, Policy); | |||
5286 | } | |||
5287 | OS << ")"; | |||
5288 | ++I; | |||
5289 | ++MI; | |||
5290 | } | |||
5291 | } | |||
5292 | ||||
5293 | ||||
5294 | static bool classof(const Attr *A) { return A->getKind() == attr::OMPDeclareSimdDecl; } | |||
5295 | }; | |||
5296 | ||||
5297 | class OMPDeclareTargetDeclAttr : public Attr { | |||
5298 | public: | |||
5299 | enum MapTypeTy { | |||
5300 | MT_To, | |||
5301 | MT_Link | |||
5302 | }; | |||
5303 | private: | |||
5304 | MapTypeTy mapType; | |||
5305 | ||||
5306 | public: | |||
5307 | static OMPDeclareTargetDeclAttr *CreateImplicit(ASTContext &Ctx, MapTypeTy MapType, SourceRange Loc = SourceRange()) { | |||
5308 | auto *A = new (Ctx) OMPDeclareTargetDeclAttr(Loc, Ctx, MapType, 0); | |||
5309 | A->setImplicit(true); | |||
5310 | return A; | |||
5311 | } | |||
5312 | ||||
5313 | OMPDeclareTargetDeclAttr(SourceRange R, ASTContext &Ctx | |||
5314 | , MapTypeTy MapType | |||
5315 | , unsigned SI | |||
5316 | ) | |||
5317 | : Attr(attr::OMPDeclareTargetDecl, R, SI, false) | |||
5318 | , mapType(MapType) | |||
5319 | { | |||
5320 | } | |||
5321 | ||||
5322 | OMPDeclareTargetDeclAttr *clone(ASTContext &C) const; | |||
5323 | void printPretty(raw_ostream &OS, | |||
5324 | const PrintingPolicy &Policy) const; | |||
5325 | const char *getSpelling() const; | |||
5326 | MapTypeTy getMapType() const { | |||
5327 | return mapType; | |||
5328 | } | |||
5329 | ||||
5330 | static bool ConvertStrToMapTypeTy(StringRef Val, MapTypeTy &Out) { | |||
5331 | Optional<MapTypeTy> R = llvm::StringSwitch<Optional<MapTypeTy>>(Val) | |||
5332 | .Case("to", OMPDeclareTargetDeclAttr::MT_To) | |||
5333 | .Case("link", OMPDeclareTargetDeclAttr::MT_Link) | |||
5334 | .Default(Optional<MapTypeTy>()); | |||
5335 | if (R) { | |||
5336 | Out = *R; | |||
5337 | return true; | |||
5338 | } | |||
5339 | return false; | |||
5340 | } | |||
5341 | ||||
5342 | static const char *ConvertMapTypeTyToStr(MapTypeTy Val) { | |||
5343 | switch(Val) { | |||
5344 | case OMPDeclareTargetDeclAttr::MT_To: return "to"; | |||
5345 | case OMPDeclareTargetDeclAttr::MT_Link: return "link"; | |||
5346 | } | |||
5347 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 5347); | |||
5348 | } | |||
5349 | ||||
5350 | void printPrettyPragma(raw_ostream &OS, const PrintingPolicy &Policy) const { | |||
5351 | // Use fake syntax because it is for testing and debugging purpose only. | |||
5352 | if (getMapType() != MT_To) | |||
5353 | OS << ' ' << ConvertMapTypeTyToStr(getMapType()); | |||
5354 | } | |||
5355 | ||||
5356 | ||||
5357 | static bool classof(const Attr *A) { return A->getKind() == attr::OMPDeclareTargetDecl; } | |||
5358 | }; | |||
5359 | ||||
5360 | class OMPReferencedVarAttr : public Attr { | |||
5361 | Expr * ref; | |||
5362 | ||||
5363 | public: | |||
5364 | static OMPReferencedVarAttr *CreateImplicit(ASTContext &Ctx, Expr * Ref, SourceRange Loc = SourceRange()) { | |||
5365 | auto *A = new (Ctx) OMPReferencedVarAttr(Loc, Ctx, Ref, 0); | |||
5366 | A->setImplicit(true); | |||
5367 | return A; | |||
5368 | } | |||
5369 | ||||
5370 | OMPReferencedVarAttr(SourceRange R, ASTContext &Ctx | |||
5371 | , Expr * Ref | |||
5372 | , unsigned SI | |||
5373 | ) | |||
5374 | : Attr(attr::OMPReferencedVar, R, SI, false) | |||
5375 | , ref(Ref) | |||
5376 | { | |||
5377 | } | |||
5378 | ||||
5379 | OMPReferencedVarAttr *clone(ASTContext &C) const; | |||
5380 | void printPretty(raw_ostream &OS, | |||
5381 | const PrintingPolicy &Policy) const; | |||
5382 | const char *getSpelling() const; | |||
5383 | Expr * getRef() const { | |||
5384 | return ref; | |||
5385 | } | |||
5386 | ||||
5387 | ||||
5388 | ||||
5389 | static bool classof(const Attr *A) { return A->getKind() == attr::OMPReferencedVar; } | |||
5390 | }; | |||
5391 | ||||
5392 | class OMPThreadPrivateDeclAttr : public InheritableAttr { | |||
5393 | public: | |||
5394 | static OMPThreadPrivateDeclAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5395 | auto *A = new (Ctx) OMPThreadPrivateDeclAttr(Loc, Ctx, 0); | |||
5396 | A->setImplicit(true); | |||
5397 | return A; | |||
5398 | } | |||
5399 | ||||
5400 | OMPThreadPrivateDeclAttr(SourceRange R, ASTContext &Ctx | |||
5401 | , unsigned SI | |||
5402 | ) | |||
5403 | : InheritableAttr(attr::OMPThreadPrivateDecl, R, SI, false, false) | |||
5404 | { | |||
5405 | } | |||
5406 | ||||
5407 | OMPThreadPrivateDeclAttr *clone(ASTContext &C) const; | |||
5408 | void printPretty(raw_ostream &OS, | |||
5409 | const PrintingPolicy &Policy) const; | |||
5410 | const char *getSpelling() const; | |||
5411 | ||||
5412 | ||||
5413 | static bool classof(const Attr *A) { return A->getKind() == attr::OMPThreadPrivateDecl; } | |||
5414 | }; | |||
5415 | ||||
5416 | class ObjCBoxableAttr : public Attr { | |||
5417 | public: | |||
5418 | static ObjCBoxableAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5419 | auto *A = new (Ctx) ObjCBoxableAttr(Loc, Ctx, 0); | |||
5420 | A->setImplicit(true); | |||
5421 | return A; | |||
5422 | } | |||
5423 | ||||
5424 | ObjCBoxableAttr(SourceRange R, ASTContext &Ctx | |||
5425 | , unsigned SI | |||
5426 | ) | |||
5427 | : Attr(attr::ObjCBoxable, R, SI, false) | |||
5428 | { | |||
5429 | } | |||
5430 | ||||
5431 | ObjCBoxableAttr *clone(ASTContext &C) const; | |||
5432 | void printPretty(raw_ostream &OS, | |||
5433 | const PrintingPolicy &Policy) const; | |||
5434 | const char *getSpelling() const; | |||
5435 | ||||
5436 | ||||
5437 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCBoxable; } | |||
5438 | }; | |||
5439 | ||||
5440 | class ObjCBridgeAttr : public InheritableAttr { | |||
5441 | IdentifierInfo * bridgedType; | |||
5442 | ||||
5443 | public: | |||
5444 | static ObjCBridgeAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * BridgedType, SourceRange Loc = SourceRange()) { | |||
5445 | auto *A = new (Ctx) ObjCBridgeAttr(Loc, Ctx, BridgedType, 0); | |||
5446 | A->setImplicit(true); | |||
5447 | return A; | |||
5448 | } | |||
5449 | ||||
5450 | ObjCBridgeAttr(SourceRange R, ASTContext &Ctx | |||
5451 | , IdentifierInfo * BridgedType | |||
5452 | , unsigned SI | |||
5453 | ) | |||
5454 | : InheritableAttr(attr::ObjCBridge, R, SI, false, false) | |||
5455 | , bridgedType(BridgedType) | |||
5456 | { | |||
5457 | } | |||
5458 | ||||
5459 | ObjCBridgeAttr *clone(ASTContext &C) const; | |||
5460 | void printPretty(raw_ostream &OS, | |||
5461 | const PrintingPolicy &Policy) const; | |||
5462 | const char *getSpelling() const; | |||
5463 | IdentifierInfo * getBridgedType() const { | |||
5464 | return bridgedType; | |||
5465 | } | |||
5466 | ||||
5467 | ||||
5468 | ||||
5469 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCBridge; } | |||
5470 | }; | |||
5471 | ||||
5472 | class ObjCBridgeMutableAttr : public InheritableAttr { | |||
5473 | IdentifierInfo * bridgedType; | |||
5474 | ||||
5475 | public: | |||
5476 | static ObjCBridgeMutableAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * BridgedType, SourceRange Loc = SourceRange()) { | |||
5477 | auto *A = new (Ctx) ObjCBridgeMutableAttr(Loc, Ctx, BridgedType, 0); | |||
5478 | A->setImplicit(true); | |||
5479 | return A; | |||
5480 | } | |||
5481 | ||||
5482 | ObjCBridgeMutableAttr(SourceRange R, ASTContext &Ctx | |||
5483 | , IdentifierInfo * BridgedType | |||
5484 | , unsigned SI | |||
5485 | ) | |||
5486 | : InheritableAttr(attr::ObjCBridgeMutable, R, SI, false, false) | |||
5487 | , bridgedType(BridgedType) | |||
5488 | { | |||
5489 | } | |||
5490 | ||||
5491 | ObjCBridgeMutableAttr *clone(ASTContext &C) const; | |||
5492 | void printPretty(raw_ostream &OS, | |||
5493 | const PrintingPolicy &Policy) const; | |||
5494 | const char *getSpelling() const; | |||
5495 | IdentifierInfo * getBridgedType() const { | |||
5496 | return bridgedType; | |||
5497 | } | |||
5498 | ||||
5499 | ||||
5500 | ||||
5501 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCBridgeMutable; } | |||
5502 | }; | |||
5503 | ||||
5504 | class ObjCBridgeRelatedAttr : public InheritableAttr { | |||
5505 | IdentifierInfo * relatedClass; | |||
5506 | ||||
5507 | IdentifierInfo * classMethod; | |||
5508 | ||||
5509 | IdentifierInfo * instanceMethod; | |||
5510 | ||||
5511 | public: | |||
5512 | static ObjCBridgeRelatedAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * RelatedClass, IdentifierInfo * ClassMethod, IdentifierInfo * InstanceMethod, SourceRange Loc = SourceRange()) { | |||
5513 | auto *A = new (Ctx) ObjCBridgeRelatedAttr(Loc, Ctx, RelatedClass, ClassMethod, InstanceMethod, 0); | |||
5514 | A->setImplicit(true); | |||
5515 | return A; | |||
5516 | } | |||
5517 | ||||
5518 | ObjCBridgeRelatedAttr(SourceRange R, ASTContext &Ctx | |||
5519 | , IdentifierInfo * RelatedClass | |||
5520 | , IdentifierInfo * ClassMethod | |||
5521 | , IdentifierInfo * InstanceMethod | |||
5522 | , unsigned SI | |||
5523 | ) | |||
5524 | : InheritableAttr(attr::ObjCBridgeRelated, R, SI, false, false) | |||
5525 | , relatedClass(RelatedClass) | |||
5526 | , classMethod(ClassMethod) | |||
5527 | , instanceMethod(InstanceMethod) | |||
5528 | { | |||
5529 | } | |||
5530 | ||||
5531 | ObjCBridgeRelatedAttr *clone(ASTContext &C) const; | |||
5532 | void printPretty(raw_ostream &OS, | |||
5533 | const PrintingPolicy &Policy) const; | |||
5534 | const char *getSpelling() const; | |||
5535 | IdentifierInfo * getRelatedClass() const { | |||
5536 | return relatedClass; | |||
5537 | } | |||
5538 | ||||
5539 | IdentifierInfo * getClassMethod() const { | |||
5540 | return classMethod; | |||
5541 | } | |||
5542 | ||||
5543 | IdentifierInfo * getInstanceMethod() const { | |||
5544 | return instanceMethod; | |||
5545 | } | |||
5546 | ||||
5547 | ||||
5548 | ||||
5549 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCBridgeRelated; } | |||
5550 | }; | |||
5551 | ||||
5552 | class ObjCDesignatedInitializerAttr : public Attr { | |||
5553 | public: | |||
5554 | static ObjCDesignatedInitializerAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5555 | auto *A = new (Ctx) ObjCDesignatedInitializerAttr(Loc, Ctx, 0); | |||
5556 | A->setImplicit(true); | |||
5557 | return A; | |||
5558 | } | |||
5559 | ||||
5560 | ObjCDesignatedInitializerAttr(SourceRange R, ASTContext &Ctx | |||
5561 | , unsigned SI | |||
5562 | ) | |||
5563 | : Attr(attr::ObjCDesignatedInitializer, R, SI, false) | |||
5564 | { | |||
5565 | } | |||
5566 | ||||
5567 | ObjCDesignatedInitializerAttr *clone(ASTContext &C) const; | |||
5568 | void printPretty(raw_ostream &OS, | |||
5569 | const PrintingPolicy &Policy) const; | |||
5570 | const char *getSpelling() const; | |||
5571 | ||||
5572 | ||||
5573 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCDesignatedInitializer; } | |||
5574 | }; | |||
5575 | ||||
5576 | class ObjCExceptionAttr : public InheritableAttr { | |||
5577 | public: | |||
5578 | static ObjCExceptionAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5579 | auto *A = new (Ctx) ObjCExceptionAttr(Loc, Ctx, 0); | |||
5580 | A->setImplicit(true); | |||
5581 | return A; | |||
5582 | } | |||
5583 | ||||
5584 | ObjCExceptionAttr(SourceRange R, ASTContext &Ctx | |||
5585 | , unsigned SI | |||
5586 | ) | |||
5587 | : InheritableAttr(attr::ObjCException, R, SI, false, false) | |||
5588 | { | |||
5589 | } | |||
5590 | ||||
5591 | ObjCExceptionAttr *clone(ASTContext &C) const; | |||
5592 | void printPretty(raw_ostream &OS, | |||
5593 | const PrintingPolicy &Policy) const; | |||
5594 | const char *getSpelling() const; | |||
5595 | ||||
5596 | ||||
5597 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCException; } | |||
5598 | }; | |||
5599 | ||||
5600 | class ObjCExplicitProtocolImplAttr : public InheritableAttr { | |||
5601 | public: | |||
5602 | static ObjCExplicitProtocolImplAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5603 | auto *A = new (Ctx) ObjCExplicitProtocolImplAttr(Loc, Ctx, 0); | |||
5604 | A->setImplicit(true); | |||
5605 | return A; | |||
5606 | } | |||
5607 | ||||
5608 | ObjCExplicitProtocolImplAttr(SourceRange R, ASTContext &Ctx | |||
5609 | , unsigned SI | |||
5610 | ) | |||
5611 | : InheritableAttr(attr::ObjCExplicitProtocolImpl, R, SI, false, false) | |||
5612 | { | |||
5613 | } | |||
5614 | ||||
5615 | ObjCExplicitProtocolImplAttr *clone(ASTContext &C) const; | |||
5616 | void printPretty(raw_ostream &OS, | |||
5617 | const PrintingPolicy &Policy) const; | |||
5618 | const char *getSpelling() const; | |||
5619 | ||||
5620 | ||||
5621 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCExplicitProtocolImpl; } | |||
5622 | }; | |||
5623 | ||||
5624 | class ObjCIndependentClassAttr : public InheritableAttr { | |||
5625 | public: | |||
5626 | static ObjCIndependentClassAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5627 | auto *A = new (Ctx) ObjCIndependentClassAttr(Loc, Ctx, 0); | |||
5628 | A->setImplicit(true); | |||
5629 | return A; | |||
5630 | } | |||
5631 | ||||
5632 | ObjCIndependentClassAttr(SourceRange R, ASTContext &Ctx | |||
5633 | , unsigned SI | |||
5634 | ) | |||
5635 | : InheritableAttr(attr::ObjCIndependentClass, R, SI, false, false) | |||
5636 | { | |||
5637 | } | |||
5638 | ||||
5639 | ObjCIndependentClassAttr *clone(ASTContext &C) const; | |||
5640 | void printPretty(raw_ostream &OS, | |||
5641 | const PrintingPolicy &Policy) const; | |||
5642 | const char *getSpelling() const; | |||
5643 | ||||
5644 | ||||
5645 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCIndependentClass; } | |||
5646 | }; | |||
5647 | ||||
5648 | class ObjCMethodFamilyAttr : public InheritableAttr { | |||
5649 | public: | |||
5650 | enum FamilyKind { | |||
5651 | OMF_None, | |||
5652 | OMF_alloc, | |||
5653 | OMF_copy, | |||
5654 | OMF_init, | |||
5655 | OMF_mutableCopy, | |||
5656 | OMF_new | |||
5657 | }; | |||
5658 | private: | |||
5659 | FamilyKind family; | |||
5660 | ||||
5661 | public: | |||
5662 | static ObjCMethodFamilyAttr *CreateImplicit(ASTContext &Ctx, FamilyKind Family, SourceRange Loc = SourceRange()) { | |||
5663 | auto *A = new (Ctx) ObjCMethodFamilyAttr(Loc, Ctx, Family, 0); | |||
5664 | A->setImplicit(true); | |||
5665 | return A; | |||
5666 | } | |||
5667 | ||||
5668 | ObjCMethodFamilyAttr(SourceRange R, ASTContext &Ctx | |||
5669 | , FamilyKind Family | |||
5670 | , unsigned SI | |||
5671 | ) | |||
5672 | : InheritableAttr(attr::ObjCMethodFamily, R, SI, false, false) | |||
5673 | , family(Family) | |||
5674 | { | |||
5675 | } | |||
5676 | ||||
5677 | ObjCMethodFamilyAttr *clone(ASTContext &C) const; | |||
5678 | void printPretty(raw_ostream &OS, | |||
5679 | const PrintingPolicy &Policy) const; | |||
5680 | const char *getSpelling() const; | |||
5681 | FamilyKind getFamily() const { | |||
5682 | return family; | |||
5683 | } | |||
5684 | ||||
5685 | static bool ConvertStrToFamilyKind(StringRef Val, FamilyKind &Out) { | |||
5686 | Optional<FamilyKind> R = llvm::StringSwitch<Optional<FamilyKind>>(Val) | |||
5687 | .Case("none", ObjCMethodFamilyAttr::OMF_None) | |||
5688 | .Case("alloc", ObjCMethodFamilyAttr::OMF_alloc) | |||
5689 | .Case("copy", ObjCMethodFamilyAttr::OMF_copy) | |||
5690 | .Case("init", ObjCMethodFamilyAttr::OMF_init) | |||
5691 | .Case("mutableCopy", ObjCMethodFamilyAttr::OMF_mutableCopy) | |||
5692 | .Case("new", ObjCMethodFamilyAttr::OMF_new) | |||
5693 | .Default(Optional<FamilyKind>()); | |||
5694 | if (R) { | |||
5695 | Out = *R; | |||
5696 | return true; | |||
5697 | } | |||
5698 | return false; | |||
5699 | } | |||
5700 | ||||
5701 | static const char *ConvertFamilyKindToStr(FamilyKind Val) { | |||
5702 | switch(Val) { | |||
5703 | case ObjCMethodFamilyAttr::OMF_None: return "none"; | |||
5704 | case ObjCMethodFamilyAttr::OMF_alloc: return "alloc"; | |||
5705 | case ObjCMethodFamilyAttr::OMF_copy: return "copy"; | |||
5706 | case ObjCMethodFamilyAttr::OMF_init: return "init"; | |||
5707 | case ObjCMethodFamilyAttr::OMF_mutableCopy: return "mutableCopy"; | |||
5708 | case ObjCMethodFamilyAttr::OMF_new: return "new"; | |||
5709 | } | |||
5710 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 5710); | |||
5711 | } | |||
5712 | ||||
5713 | ||||
5714 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCMethodFamily; } | |||
5715 | }; | |||
5716 | ||||
5717 | class ObjCNSObjectAttr : public InheritableAttr { | |||
5718 | public: | |||
5719 | static ObjCNSObjectAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5720 | auto *A = new (Ctx) ObjCNSObjectAttr(Loc, Ctx, 0); | |||
5721 | A->setImplicit(true); | |||
5722 | return A; | |||
5723 | } | |||
5724 | ||||
5725 | ObjCNSObjectAttr(SourceRange R, ASTContext &Ctx | |||
5726 | , unsigned SI | |||
5727 | ) | |||
5728 | : InheritableAttr(attr::ObjCNSObject, R, SI, false, false) | |||
5729 | { | |||
5730 | } | |||
5731 | ||||
5732 | ObjCNSObjectAttr *clone(ASTContext &C) const; | |||
5733 | void printPretty(raw_ostream &OS, | |||
5734 | const PrintingPolicy &Policy) const; | |||
5735 | const char *getSpelling() const; | |||
5736 | ||||
5737 | ||||
5738 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCNSObject; } | |||
5739 | }; | |||
5740 | ||||
5741 | class ObjCPreciseLifetimeAttr : public InheritableAttr { | |||
5742 | public: | |||
5743 | static ObjCPreciseLifetimeAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5744 | auto *A = new (Ctx) ObjCPreciseLifetimeAttr(Loc, Ctx, 0); | |||
5745 | A->setImplicit(true); | |||
5746 | return A; | |||
5747 | } | |||
5748 | ||||
5749 | ObjCPreciseLifetimeAttr(SourceRange R, ASTContext &Ctx | |||
5750 | , unsigned SI | |||
5751 | ) | |||
5752 | : InheritableAttr(attr::ObjCPreciseLifetime, R, SI, false, false) | |||
5753 | { | |||
5754 | } | |||
5755 | ||||
5756 | ObjCPreciseLifetimeAttr *clone(ASTContext &C) const; | |||
5757 | void printPretty(raw_ostream &OS, | |||
5758 | const PrintingPolicy &Policy) const; | |||
5759 | const char *getSpelling() const; | |||
5760 | ||||
5761 | ||||
5762 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCPreciseLifetime; } | |||
5763 | }; | |||
5764 | ||||
5765 | class ObjCRequiresPropertyDefsAttr : public InheritableAttr { | |||
5766 | public: | |||
5767 | static ObjCRequiresPropertyDefsAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5768 | auto *A = new (Ctx) ObjCRequiresPropertyDefsAttr(Loc, Ctx, 0); | |||
5769 | A->setImplicit(true); | |||
5770 | return A; | |||
5771 | } | |||
5772 | ||||
5773 | ObjCRequiresPropertyDefsAttr(SourceRange R, ASTContext &Ctx | |||
5774 | , unsigned SI | |||
5775 | ) | |||
5776 | : InheritableAttr(attr::ObjCRequiresPropertyDefs, R, SI, false, false) | |||
5777 | { | |||
5778 | } | |||
5779 | ||||
5780 | ObjCRequiresPropertyDefsAttr *clone(ASTContext &C) const; | |||
5781 | void printPretty(raw_ostream &OS, | |||
5782 | const PrintingPolicy &Policy) const; | |||
5783 | const char *getSpelling() const; | |||
5784 | ||||
5785 | ||||
5786 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCRequiresPropertyDefs; } | |||
5787 | }; | |||
5788 | ||||
5789 | class ObjCRequiresSuperAttr : public InheritableAttr { | |||
5790 | public: | |||
5791 | static ObjCRequiresSuperAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5792 | auto *A = new (Ctx) ObjCRequiresSuperAttr(Loc, Ctx, 0); | |||
5793 | A->setImplicit(true); | |||
5794 | return A; | |||
5795 | } | |||
5796 | ||||
5797 | ObjCRequiresSuperAttr(SourceRange R, ASTContext &Ctx | |||
5798 | , unsigned SI | |||
5799 | ) | |||
5800 | : InheritableAttr(attr::ObjCRequiresSuper, R, SI, false, false) | |||
5801 | { | |||
5802 | } | |||
5803 | ||||
5804 | ObjCRequiresSuperAttr *clone(ASTContext &C) const; | |||
5805 | void printPretty(raw_ostream &OS, | |||
5806 | const PrintingPolicy &Policy) const; | |||
5807 | const char *getSpelling() const; | |||
5808 | ||||
5809 | ||||
5810 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCRequiresSuper; } | |||
5811 | }; | |||
5812 | ||||
5813 | class ObjCReturnsInnerPointerAttr : public InheritableAttr { | |||
5814 | public: | |||
5815 | static ObjCReturnsInnerPointerAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5816 | auto *A = new (Ctx) ObjCReturnsInnerPointerAttr(Loc, Ctx, 0); | |||
5817 | A->setImplicit(true); | |||
5818 | return A; | |||
5819 | } | |||
5820 | ||||
5821 | ObjCReturnsInnerPointerAttr(SourceRange R, ASTContext &Ctx | |||
5822 | , unsigned SI | |||
5823 | ) | |||
5824 | : InheritableAttr(attr::ObjCReturnsInnerPointer, R, SI, false, false) | |||
5825 | { | |||
5826 | } | |||
5827 | ||||
5828 | ObjCReturnsInnerPointerAttr *clone(ASTContext &C) const; | |||
5829 | void printPretty(raw_ostream &OS, | |||
5830 | const PrintingPolicy &Policy) const; | |||
5831 | const char *getSpelling() const; | |||
5832 | ||||
5833 | ||||
5834 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCReturnsInnerPointer; } | |||
5835 | }; | |||
5836 | ||||
5837 | class ObjCRootClassAttr : public InheritableAttr { | |||
5838 | public: | |||
5839 | static ObjCRootClassAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5840 | auto *A = new (Ctx) ObjCRootClassAttr(Loc, Ctx, 0); | |||
5841 | A->setImplicit(true); | |||
5842 | return A; | |||
5843 | } | |||
5844 | ||||
5845 | ObjCRootClassAttr(SourceRange R, ASTContext &Ctx | |||
5846 | , unsigned SI | |||
5847 | ) | |||
5848 | : InheritableAttr(attr::ObjCRootClass, R, SI, false, false) | |||
5849 | { | |||
5850 | } | |||
5851 | ||||
5852 | ObjCRootClassAttr *clone(ASTContext &C) const; | |||
5853 | void printPretty(raw_ostream &OS, | |||
5854 | const PrintingPolicy &Policy) const; | |||
5855 | const char *getSpelling() const; | |||
5856 | ||||
5857 | ||||
5858 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCRootClass; } | |||
5859 | }; | |||
5860 | ||||
5861 | class ObjCRuntimeNameAttr : public Attr { | |||
5862 | unsigned metadataNameLength; | |||
5863 | char *metadataName; | |||
5864 | ||||
5865 | public: | |||
5866 | static ObjCRuntimeNameAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef MetadataName, SourceRange Loc = SourceRange()) { | |||
5867 | auto *A = new (Ctx) ObjCRuntimeNameAttr(Loc, Ctx, MetadataName, 0); | |||
5868 | A->setImplicit(true); | |||
5869 | return A; | |||
5870 | } | |||
5871 | ||||
5872 | ObjCRuntimeNameAttr(SourceRange R, ASTContext &Ctx | |||
5873 | , llvm::StringRef MetadataName | |||
5874 | , unsigned SI | |||
5875 | ) | |||
5876 | : Attr(attr::ObjCRuntimeName, R, SI, false) | |||
5877 | , metadataNameLength(MetadataName.size()),metadataName(new (Ctx, 1) char[metadataNameLength]) | |||
5878 | { | |||
5879 | if (!MetadataName.empty()) | |||
5880 | std::memcpy(metadataName, MetadataName.data(), metadataNameLength); | |||
5881 | } | |||
5882 | ||||
5883 | ObjCRuntimeNameAttr *clone(ASTContext &C) const; | |||
5884 | void printPretty(raw_ostream &OS, | |||
5885 | const PrintingPolicy &Policy) const; | |||
5886 | const char *getSpelling() const; | |||
5887 | llvm::StringRef getMetadataName() const { | |||
5888 | return llvm::StringRef(metadataName, metadataNameLength); | |||
5889 | } | |||
5890 | unsigned getMetadataNameLength() const { | |||
5891 | return metadataNameLength; | |||
5892 | } | |||
5893 | void setMetadataName(ASTContext &C, llvm::StringRef S) { | |||
5894 | metadataNameLength = S.size(); | |||
5895 | this->metadataName = new (C, 1) char [metadataNameLength]; | |||
5896 | if (!S.empty()) | |||
5897 | std::memcpy(this->metadataName, S.data(), metadataNameLength); | |||
5898 | } | |||
5899 | ||||
5900 | ||||
5901 | ||||
5902 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCRuntimeName; } | |||
5903 | }; | |||
5904 | ||||
5905 | class ObjCRuntimeVisibleAttr : public Attr { | |||
5906 | public: | |||
5907 | static ObjCRuntimeVisibleAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5908 | auto *A = new (Ctx) ObjCRuntimeVisibleAttr(Loc, Ctx, 0); | |||
5909 | A->setImplicit(true); | |||
5910 | return A; | |||
5911 | } | |||
5912 | ||||
5913 | ObjCRuntimeVisibleAttr(SourceRange R, ASTContext &Ctx | |||
5914 | , unsigned SI | |||
5915 | ) | |||
5916 | : Attr(attr::ObjCRuntimeVisible, R, SI, false) | |||
5917 | { | |||
5918 | } | |||
5919 | ||||
5920 | ObjCRuntimeVisibleAttr *clone(ASTContext &C) const; | |||
5921 | void printPretty(raw_ostream &OS, | |||
5922 | const PrintingPolicy &Policy) const; | |||
5923 | const char *getSpelling() const; | |||
5924 | ||||
5925 | ||||
5926 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCRuntimeVisible; } | |||
5927 | }; | |||
5928 | ||||
5929 | class ObjCSubclassingRestrictedAttr : public InheritableAttr { | |||
5930 | public: | |||
5931 | static ObjCSubclassingRestrictedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
5932 | auto *A = new (Ctx) ObjCSubclassingRestrictedAttr(Loc, Ctx, 0); | |||
5933 | A->setImplicit(true); | |||
5934 | return A; | |||
5935 | } | |||
5936 | ||||
5937 | ObjCSubclassingRestrictedAttr(SourceRange R, ASTContext &Ctx | |||
5938 | , unsigned SI | |||
5939 | ) | |||
5940 | : InheritableAttr(attr::ObjCSubclassingRestricted, R, SI, false, false) | |||
5941 | { | |||
5942 | } | |||
5943 | ||||
5944 | ObjCSubclassingRestrictedAttr *clone(ASTContext &C) const; | |||
5945 | void printPretty(raw_ostream &OS, | |||
5946 | const PrintingPolicy &Policy) const; | |||
5947 | const char *getSpelling() const; | |||
5948 | ||||
5949 | ||||
5950 | static bool classof(const Attr *A) { return A->getKind() == attr::ObjCSubclassingRestricted; } | |||
5951 | }; | |||
5952 | ||||
5953 | class OpenCLAccessAttr : public Attr { | |||
5954 | public: | |||
5955 | enum Spelling { | |||
5956 | Keyword_read_only = 0, | |||
5957 | Keyword_write_only = 2, | |||
5958 | Keyword_read_write = 4 | |||
5959 | }; | |||
5960 | ||||
5961 | static OpenCLAccessAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
5962 | auto *A = new (Ctx) OpenCLAccessAttr(Loc, Ctx, S); | |||
5963 | A->setImplicit(true); | |||
5964 | return A; | |||
5965 | } | |||
5966 | ||||
5967 | OpenCLAccessAttr(SourceRange R, ASTContext &Ctx | |||
5968 | , unsigned SI | |||
5969 | ) | |||
5970 | : Attr(attr::OpenCLAccess, R, SI, false) | |||
5971 | { | |||
5972 | } | |||
5973 | ||||
5974 | OpenCLAccessAttr *clone(ASTContext &C) const; | |||
5975 | void printPretty(raw_ostream &OS, | |||
5976 | const PrintingPolicy &Policy) const; | |||
5977 | const char *getSpelling() const; | |||
5978 | Spelling getSemanticSpelling() const { | |||
5979 | switch (SpellingListIndex) { | |||
5980 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 5980); | |||
5981 | case 0: return Keyword_read_only; | |||
5982 | case 1: return Keyword_read_only; | |||
5983 | case 2: return Keyword_write_only; | |||
5984 | case 3: return Keyword_write_only; | |||
5985 | case 4: return Keyword_read_write; | |||
5986 | case 5: return Keyword_read_write; | |||
5987 | } | |||
5988 | } | |||
5989 | bool isReadOnly() const { return SpellingListIndex == 0 || | |||
5990 | SpellingListIndex == 1; } | |||
5991 | bool isReadWrite() const { return SpellingListIndex == 4 || | |||
5992 | SpellingListIndex == 5; } | |||
5993 | bool isWriteOnly() const { return SpellingListIndex == 2 || | |||
5994 | SpellingListIndex == 3; } | |||
5995 | ||||
5996 | ||||
5997 | static bool classof(const Attr *A) { return A->getKind() == attr::OpenCLAccess; } | |||
5998 | }; | |||
5999 | ||||
6000 | class OpenCLIntelReqdSubGroupSizeAttr : public InheritableAttr { | |||
6001 | unsigned subGroupSize; | |||
6002 | ||||
6003 | public: | |||
6004 | static OpenCLIntelReqdSubGroupSizeAttr *CreateImplicit(ASTContext &Ctx, unsigned SubGroupSize, SourceRange Loc = SourceRange()) { | |||
6005 | auto *A = new (Ctx) OpenCLIntelReqdSubGroupSizeAttr(Loc, Ctx, SubGroupSize, 0); | |||
6006 | A->setImplicit(true); | |||
6007 | return A; | |||
6008 | } | |||
6009 | ||||
6010 | OpenCLIntelReqdSubGroupSizeAttr(SourceRange R, ASTContext &Ctx | |||
6011 | , unsigned SubGroupSize | |||
6012 | , unsigned SI | |||
6013 | ) | |||
6014 | : InheritableAttr(attr::OpenCLIntelReqdSubGroupSize, R, SI, false, false) | |||
6015 | , subGroupSize(SubGroupSize) | |||
6016 | { | |||
6017 | } | |||
6018 | ||||
6019 | OpenCLIntelReqdSubGroupSizeAttr *clone(ASTContext &C) const; | |||
6020 | void printPretty(raw_ostream &OS, | |||
6021 | const PrintingPolicy &Policy) const; | |||
6022 | const char *getSpelling() const; | |||
6023 | unsigned getSubGroupSize() const { | |||
6024 | return subGroupSize; | |||
6025 | } | |||
6026 | ||||
6027 | ||||
6028 | ||||
6029 | static bool classof(const Attr *A) { return A->getKind() == attr::OpenCLIntelReqdSubGroupSize; } | |||
6030 | }; | |||
6031 | ||||
6032 | class OpenCLKernelAttr : public InheritableAttr { | |||
6033 | public: | |||
6034 | static OpenCLKernelAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6035 | auto *A = new (Ctx) OpenCLKernelAttr(Loc, Ctx, 0); | |||
6036 | A->setImplicit(true); | |||
6037 | return A; | |||
6038 | } | |||
6039 | ||||
6040 | OpenCLKernelAttr(SourceRange R, ASTContext &Ctx | |||
6041 | , unsigned SI | |||
6042 | ) | |||
6043 | : InheritableAttr(attr::OpenCLKernel, R, SI, false, false) | |||
6044 | { | |||
6045 | } | |||
6046 | ||||
6047 | OpenCLKernelAttr *clone(ASTContext &C) const; | |||
6048 | void printPretty(raw_ostream &OS, | |||
6049 | const PrintingPolicy &Policy) const; | |||
6050 | const char *getSpelling() const; | |||
6051 | ||||
6052 | ||||
6053 | static bool classof(const Attr *A) { return A->getKind() == attr::OpenCLKernel; } | |||
6054 | }; | |||
6055 | ||||
6056 | class OpenCLUnrollHintAttr : public InheritableAttr { | |||
6057 | unsigned unrollHint; | |||
6058 | ||||
6059 | public: | |||
6060 | static OpenCLUnrollHintAttr *CreateImplicit(ASTContext &Ctx, unsigned UnrollHint, SourceRange Loc = SourceRange()) { | |||
6061 | auto *A = new (Ctx) OpenCLUnrollHintAttr(Loc, Ctx, UnrollHint, 0); | |||
6062 | A->setImplicit(true); | |||
6063 | return A; | |||
6064 | } | |||
6065 | ||||
6066 | OpenCLUnrollHintAttr(SourceRange R, ASTContext &Ctx | |||
6067 | , unsigned UnrollHint | |||
6068 | , unsigned SI | |||
6069 | ) | |||
6070 | : InheritableAttr(attr::OpenCLUnrollHint, R, SI, false, false) | |||
6071 | , unrollHint(UnrollHint) | |||
6072 | { | |||
6073 | } | |||
6074 | ||||
6075 | OpenCLUnrollHintAttr *clone(ASTContext &C) const; | |||
6076 | void printPretty(raw_ostream &OS, | |||
6077 | const PrintingPolicy &Policy) const; | |||
6078 | const char *getSpelling() const; | |||
6079 | unsigned getUnrollHint() const { | |||
6080 | return unrollHint; | |||
6081 | } | |||
6082 | ||||
6083 | ||||
6084 | ||||
6085 | static bool classof(const Attr *A) { return A->getKind() == attr::OpenCLUnrollHint; } | |||
6086 | }; | |||
6087 | ||||
6088 | class OptimizeNoneAttr : public InheritableAttr { | |||
6089 | public: | |||
6090 | static OptimizeNoneAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6091 | auto *A = new (Ctx) OptimizeNoneAttr(Loc, Ctx, 0); | |||
6092 | A->setImplicit(true); | |||
6093 | return A; | |||
6094 | } | |||
6095 | ||||
6096 | OptimizeNoneAttr(SourceRange R, ASTContext &Ctx | |||
6097 | , unsigned SI | |||
6098 | ) | |||
6099 | : InheritableAttr(attr::OptimizeNone, R, SI, false, false) | |||
6100 | { | |||
6101 | } | |||
6102 | ||||
6103 | OptimizeNoneAttr *clone(ASTContext &C) const; | |||
6104 | void printPretty(raw_ostream &OS, | |||
6105 | const PrintingPolicy &Policy) const; | |||
6106 | const char *getSpelling() const; | |||
6107 | ||||
6108 | ||||
6109 | static bool classof(const Attr *A) { return A->getKind() == attr::OptimizeNone; } | |||
6110 | }; | |||
6111 | ||||
6112 | class OverloadableAttr : public Attr { | |||
6113 | public: | |||
6114 | static OverloadableAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6115 | auto *A = new (Ctx) OverloadableAttr(Loc, Ctx, 0); | |||
6116 | A->setImplicit(true); | |||
6117 | return A; | |||
6118 | } | |||
6119 | ||||
6120 | OverloadableAttr(SourceRange R, ASTContext &Ctx | |||
6121 | , unsigned SI | |||
6122 | ) | |||
6123 | : Attr(attr::Overloadable, R, SI, false) | |||
6124 | { | |||
6125 | } | |||
6126 | ||||
6127 | OverloadableAttr *clone(ASTContext &C) const; | |||
6128 | void printPretty(raw_ostream &OS, | |||
6129 | const PrintingPolicy &Policy) const; | |||
6130 | const char *getSpelling() const; | |||
6131 | ||||
6132 | ||||
6133 | static bool classof(const Attr *A) { return A->getKind() == attr::Overloadable; } | |||
6134 | }; | |||
6135 | ||||
6136 | class OverrideAttr : public InheritableAttr { | |||
6137 | public: | |||
6138 | static OverrideAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6139 | auto *A = new (Ctx) OverrideAttr(Loc, Ctx, 0); | |||
6140 | A->setImplicit(true); | |||
6141 | return A; | |||
6142 | } | |||
6143 | ||||
6144 | OverrideAttr(SourceRange R, ASTContext &Ctx | |||
6145 | , unsigned SI | |||
6146 | ) | |||
6147 | : InheritableAttr(attr::Override, R, SI, false, false) | |||
6148 | { | |||
6149 | } | |||
6150 | ||||
6151 | OverrideAttr *clone(ASTContext &C) const; | |||
6152 | void printPretty(raw_ostream &OS, | |||
6153 | const PrintingPolicy &Policy) const; | |||
6154 | const char *getSpelling() const; | |||
6155 | ||||
6156 | ||||
6157 | static bool classof(const Attr *A) { return A->getKind() == attr::Override; } | |||
6158 | }; | |||
6159 | ||||
6160 | class OwnershipAttr : public InheritableAttr { | |||
6161 | IdentifierInfo * module; | |||
6162 | ||||
6163 | unsigned args_Size; | |||
6164 | ParamIdx *args_; | |||
6165 | ||||
6166 | public: | |||
6167 | enum Spelling { | |||
6168 | GNU_ownership_holds = 0, | |||
6169 | CXX11_clang_ownership_holds = 1, | |||
6170 | C2x_clang_ownership_holds = 2, | |||
6171 | GNU_ownership_returns = 3, | |||
6172 | CXX11_clang_ownership_returns = 4, | |||
6173 | C2x_clang_ownership_returns = 5, | |||
6174 | GNU_ownership_takes = 6, | |||
6175 | CXX11_clang_ownership_takes = 7, | |||
6176 | C2x_clang_ownership_takes = 8 | |||
6177 | }; | |||
6178 | ||||
6179 | static OwnershipAttr *CreateImplicit(ASTContext &Ctx, Spelling S, IdentifierInfo * Module, ParamIdx *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
6180 | auto *A = new (Ctx) OwnershipAttr(Loc, Ctx, Module, Args, ArgsSize, S); | |||
6181 | A->setImplicit(true); | |||
6182 | return A; | |||
6183 | } | |||
6184 | ||||
6185 | OwnershipAttr(SourceRange R, ASTContext &Ctx | |||
6186 | , IdentifierInfo * Module | |||
6187 | , ParamIdx *Args, unsigned ArgsSize | |||
6188 | , unsigned SI | |||
6189 | ) | |||
6190 | : InheritableAttr(attr::Ownership, R, SI, false, false) | |||
6191 | , module(Module) | |||
6192 | , args_Size(ArgsSize), args_(new (Ctx, 16) ParamIdx[args_Size]) | |||
6193 | { | |||
6194 | std::copy(Args, Args + args_Size, args_); | |||
6195 | } | |||
6196 | ||||
6197 | OwnershipAttr(SourceRange R, ASTContext &Ctx | |||
6198 | , IdentifierInfo * Module | |||
6199 | , unsigned SI | |||
6200 | ) | |||
6201 | : InheritableAttr(attr::Ownership, R, SI, false, false) | |||
6202 | , module(Module) | |||
6203 | , args_Size(0), args_(nullptr) | |||
6204 | { | |||
6205 | } | |||
6206 | ||||
6207 | OwnershipAttr *clone(ASTContext &C) const; | |||
6208 | void printPretty(raw_ostream &OS, | |||
6209 | const PrintingPolicy &Policy) const; | |||
6210 | const char *getSpelling() const; | |||
6211 | Spelling getSemanticSpelling() const { | |||
6212 | switch (SpellingListIndex) { | |||
6213 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 6213); | |||
6214 | case 0: return GNU_ownership_holds; | |||
6215 | case 1: return CXX11_clang_ownership_holds; | |||
6216 | case 2: return C2x_clang_ownership_holds; | |||
6217 | case 3: return GNU_ownership_returns; | |||
6218 | case 4: return CXX11_clang_ownership_returns; | |||
6219 | case 5: return C2x_clang_ownership_returns; | |||
6220 | case 6: return GNU_ownership_takes; | |||
6221 | case 7: return CXX11_clang_ownership_takes; | |||
6222 | case 8: return C2x_clang_ownership_takes; | |||
6223 | } | |||
6224 | } | |||
6225 | bool isHolds() const { return SpellingListIndex == 0 || | |||
6226 | SpellingListIndex == 1 || | |||
6227 | SpellingListIndex == 2; } | |||
6228 | bool isReturns() const { return SpellingListIndex == 3 || | |||
6229 | SpellingListIndex == 4 || | |||
6230 | SpellingListIndex == 5; } | |||
6231 | bool isTakes() const { return SpellingListIndex == 6 || | |||
6232 | SpellingListIndex == 7 || | |||
6233 | SpellingListIndex == 8; } | |||
6234 | IdentifierInfo * getModule() const { | |||
6235 | return module; | |||
6236 | } | |||
6237 | ||||
6238 | typedef ParamIdx* args_iterator; | |||
6239 | args_iterator args_begin() const { return args_; } | |||
6240 | args_iterator args_end() const { return args_ + args_Size; } | |||
6241 | unsigned args_size() const { return args_Size; } | |||
6242 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
6243 | ||||
6244 | ||||
6245 | ||||
6246 | enum OwnershipKind { Holds, Returns, Takes }; | |||
6247 | OwnershipKind getOwnKind() const { | |||
6248 | return isHolds() ? Holds : | |||
6249 | isTakes() ? Takes : | |||
6250 | Returns; | |||
6251 | } | |||
6252 | ||||
6253 | ||||
6254 | static bool classof(const Attr *A) { return A->getKind() == attr::Ownership; } | |||
6255 | }; | |||
6256 | ||||
6257 | class PackedAttr : public InheritableAttr { | |||
6258 | public: | |||
6259 | static PackedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6260 | auto *A = new (Ctx) PackedAttr(Loc, Ctx, 0); | |||
6261 | A->setImplicit(true); | |||
6262 | return A; | |||
6263 | } | |||
6264 | ||||
6265 | PackedAttr(SourceRange R, ASTContext &Ctx | |||
6266 | , unsigned SI | |||
6267 | ) | |||
6268 | : InheritableAttr(attr::Packed, R, SI, false, false) | |||
6269 | { | |||
6270 | } | |||
6271 | ||||
6272 | PackedAttr *clone(ASTContext &C) const; | |||
6273 | void printPretty(raw_ostream &OS, | |||
6274 | const PrintingPolicy &Policy) const; | |||
6275 | const char *getSpelling() const; | |||
6276 | ||||
6277 | ||||
6278 | static bool classof(const Attr *A) { return A->getKind() == attr::Packed; } | |||
6279 | }; | |||
6280 | ||||
6281 | class ParamTypestateAttr : public InheritableAttr { | |||
6282 | public: | |||
6283 | enum ConsumedState { | |||
6284 | Unknown, | |||
6285 | Consumed, | |||
6286 | Unconsumed | |||
6287 | }; | |||
6288 | private: | |||
6289 | ConsumedState paramState; | |||
6290 | ||||
6291 | public: | |||
6292 | static ParamTypestateAttr *CreateImplicit(ASTContext &Ctx, ConsumedState ParamState, SourceRange Loc = SourceRange()) { | |||
6293 | auto *A = new (Ctx) ParamTypestateAttr(Loc, Ctx, ParamState, 0); | |||
6294 | A->setImplicit(true); | |||
6295 | return A; | |||
6296 | } | |||
6297 | ||||
6298 | ParamTypestateAttr(SourceRange R, ASTContext &Ctx | |||
6299 | , ConsumedState ParamState | |||
6300 | , unsigned SI | |||
6301 | ) | |||
6302 | : InheritableAttr(attr::ParamTypestate, R, SI, false, false) | |||
6303 | , paramState(ParamState) | |||
6304 | { | |||
6305 | } | |||
6306 | ||||
6307 | ParamTypestateAttr *clone(ASTContext &C) const; | |||
6308 | void printPretty(raw_ostream &OS, | |||
6309 | const PrintingPolicy &Policy) const; | |||
6310 | const char *getSpelling() const; | |||
6311 | ConsumedState getParamState() const { | |||
6312 | return paramState; | |||
6313 | } | |||
6314 | ||||
6315 | static bool ConvertStrToConsumedState(StringRef Val, ConsumedState &Out) { | |||
6316 | Optional<ConsumedState> R = llvm::StringSwitch<Optional<ConsumedState>>(Val) | |||
6317 | .Case("unknown", ParamTypestateAttr::Unknown) | |||
6318 | .Case("consumed", ParamTypestateAttr::Consumed) | |||
6319 | .Case("unconsumed", ParamTypestateAttr::Unconsumed) | |||
6320 | .Default(Optional<ConsumedState>()); | |||
6321 | if (R) { | |||
6322 | Out = *R; | |||
6323 | return true; | |||
6324 | } | |||
6325 | return false; | |||
6326 | } | |||
6327 | ||||
6328 | static const char *ConvertConsumedStateToStr(ConsumedState Val) { | |||
6329 | switch(Val) { | |||
6330 | case ParamTypestateAttr::Unknown: return "unknown"; | |||
6331 | case ParamTypestateAttr::Consumed: return "consumed"; | |||
6332 | case ParamTypestateAttr::Unconsumed: return "unconsumed"; | |||
6333 | } | |||
6334 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 6334); | |||
6335 | } | |||
6336 | ||||
6337 | ||||
6338 | static bool classof(const Attr *A) { return A->getKind() == attr::ParamTypestate; } | |||
6339 | }; | |||
6340 | ||||
6341 | class PascalAttr : public InheritableAttr { | |||
6342 | public: | |||
6343 | static PascalAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6344 | auto *A = new (Ctx) PascalAttr(Loc, Ctx, 0); | |||
6345 | A->setImplicit(true); | |||
6346 | return A; | |||
6347 | } | |||
6348 | ||||
6349 | PascalAttr(SourceRange R, ASTContext &Ctx | |||
6350 | , unsigned SI | |||
6351 | ) | |||
6352 | : InheritableAttr(attr::Pascal, R, SI, false, false) | |||
6353 | { | |||
6354 | } | |||
6355 | ||||
6356 | PascalAttr *clone(ASTContext &C) const; | |||
6357 | void printPretty(raw_ostream &OS, | |||
6358 | const PrintingPolicy &Policy) const; | |||
6359 | const char *getSpelling() const; | |||
6360 | ||||
6361 | ||||
6362 | static bool classof(const Attr *A) { return A->getKind() == attr::Pascal; } | |||
6363 | }; | |||
6364 | ||||
6365 | class PassObjectSizeAttr : public InheritableParamAttr { | |||
6366 | int type; | |||
6367 | ||||
6368 | public: | |||
6369 | static PassObjectSizeAttr *CreateImplicit(ASTContext &Ctx, int Type, SourceRange Loc = SourceRange()) { | |||
6370 | auto *A = new (Ctx) PassObjectSizeAttr(Loc, Ctx, Type, 0); | |||
6371 | A->setImplicit(true); | |||
6372 | return A; | |||
6373 | } | |||
6374 | ||||
6375 | PassObjectSizeAttr(SourceRange R, ASTContext &Ctx | |||
6376 | , int Type | |||
6377 | , unsigned SI | |||
6378 | ) | |||
6379 | : InheritableParamAttr(attr::PassObjectSize, R, SI, false, false) | |||
6380 | , type(Type) | |||
6381 | { | |||
6382 | } | |||
6383 | ||||
6384 | PassObjectSizeAttr *clone(ASTContext &C) const; | |||
6385 | void printPretty(raw_ostream &OS, | |||
6386 | const PrintingPolicy &Policy) const; | |||
6387 | const char *getSpelling() const; | |||
6388 | int getType() const { | |||
6389 | return type; | |||
6390 | } | |||
6391 | ||||
6392 | ||||
6393 | ||||
6394 | static bool classof(const Attr *A) { return A->getKind() == attr::PassObjectSize; } | |||
6395 | }; | |||
6396 | ||||
6397 | class PcsAttr : public InheritableAttr { | |||
6398 | public: | |||
6399 | enum PCSType { | |||
6400 | AAPCS, | |||
6401 | AAPCS_VFP | |||
6402 | }; | |||
6403 | private: | |||
6404 | PCSType pCS; | |||
6405 | ||||
6406 | public: | |||
6407 | static PcsAttr *CreateImplicit(ASTContext &Ctx, PCSType PCS, SourceRange Loc = SourceRange()) { | |||
6408 | auto *A = new (Ctx) PcsAttr(Loc, Ctx, PCS, 0); | |||
6409 | A->setImplicit(true); | |||
6410 | return A; | |||
6411 | } | |||
6412 | ||||
6413 | PcsAttr(SourceRange R, ASTContext &Ctx | |||
6414 | , PCSType PCS | |||
6415 | , unsigned SI | |||
6416 | ) | |||
6417 | : InheritableAttr(attr::Pcs, R, SI, false, false) | |||
6418 | , pCS(PCS) | |||
6419 | { | |||
6420 | } | |||
6421 | ||||
6422 | PcsAttr *clone(ASTContext &C) const; | |||
6423 | void printPretty(raw_ostream &OS, | |||
6424 | const PrintingPolicy &Policy) const; | |||
6425 | const char *getSpelling() const; | |||
6426 | PCSType getPCS() const { | |||
6427 | return pCS; | |||
6428 | } | |||
6429 | ||||
6430 | static bool ConvertStrToPCSType(StringRef Val, PCSType &Out) { | |||
6431 | Optional<PCSType> R = llvm::StringSwitch<Optional<PCSType>>(Val) | |||
6432 | .Case("aapcs", PcsAttr::AAPCS) | |||
6433 | .Case("aapcs-vfp", PcsAttr::AAPCS_VFP) | |||
6434 | .Default(Optional<PCSType>()); | |||
6435 | if (R) { | |||
6436 | Out = *R; | |||
6437 | return true; | |||
6438 | } | |||
6439 | return false; | |||
6440 | } | |||
6441 | ||||
6442 | static const char *ConvertPCSTypeToStr(PCSType Val) { | |||
6443 | switch(Val) { | |||
6444 | case PcsAttr::AAPCS: return "aapcs"; | |||
6445 | case PcsAttr::AAPCS_VFP: return "aapcs-vfp"; | |||
6446 | } | |||
6447 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 6447); | |||
6448 | } | |||
6449 | ||||
6450 | ||||
6451 | static bool classof(const Attr *A) { return A->getKind() == attr::Pcs; } | |||
6452 | }; | |||
6453 | ||||
6454 | class PragmaClangBSSSectionAttr : public InheritableAttr { | |||
6455 | unsigned nameLength; | |||
6456 | char *name; | |||
6457 | ||||
6458 | public: | |||
6459 | static PragmaClangBSSSectionAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Name, SourceRange Loc = SourceRange()) { | |||
6460 | auto *A = new (Ctx) PragmaClangBSSSectionAttr(Loc, Ctx, Name, 0); | |||
6461 | A->setImplicit(true); | |||
6462 | return A; | |||
6463 | } | |||
6464 | ||||
6465 | PragmaClangBSSSectionAttr(SourceRange R, ASTContext &Ctx | |||
6466 | , llvm::StringRef Name | |||
6467 | , unsigned SI | |||
6468 | ) | |||
6469 | : InheritableAttr(attr::PragmaClangBSSSection, R, SI, false, false) | |||
6470 | , nameLength(Name.size()),name(new (Ctx, 1) char[nameLength]) | |||
6471 | { | |||
6472 | if (!Name.empty()) | |||
6473 | std::memcpy(name, Name.data(), nameLength); | |||
6474 | } | |||
6475 | ||||
6476 | PragmaClangBSSSectionAttr *clone(ASTContext &C) const; | |||
6477 | void printPretty(raw_ostream &OS, | |||
6478 | const PrintingPolicy &Policy) const; | |||
6479 | const char *getSpelling() const; | |||
6480 | llvm::StringRef getName() const { | |||
6481 | return llvm::StringRef(name, nameLength); | |||
6482 | } | |||
6483 | unsigned getNameLength() const { | |||
6484 | return nameLength; | |||
6485 | } | |||
6486 | void setName(ASTContext &C, llvm::StringRef S) { | |||
6487 | nameLength = S.size(); | |||
6488 | this->name = new (C, 1) char [nameLength]; | |||
6489 | if (!S.empty()) | |||
6490 | std::memcpy(this->name, S.data(), nameLength); | |||
6491 | } | |||
6492 | ||||
6493 | ||||
6494 | ||||
6495 | static bool classof(const Attr *A) { return A->getKind() == attr::PragmaClangBSSSection; } | |||
6496 | }; | |||
6497 | ||||
6498 | class PragmaClangDataSectionAttr : public InheritableAttr { | |||
6499 | unsigned nameLength; | |||
6500 | char *name; | |||
6501 | ||||
6502 | public: | |||
6503 | static PragmaClangDataSectionAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Name, SourceRange Loc = SourceRange()) { | |||
6504 | auto *A = new (Ctx) PragmaClangDataSectionAttr(Loc, Ctx, Name, 0); | |||
6505 | A->setImplicit(true); | |||
6506 | return A; | |||
6507 | } | |||
6508 | ||||
6509 | PragmaClangDataSectionAttr(SourceRange R, ASTContext &Ctx | |||
6510 | , llvm::StringRef Name | |||
6511 | , unsigned SI | |||
6512 | ) | |||
6513 | : InheritableAttr(attr::PragmaClangDataSection, R, SI, false, false) | |||
6514 | , nameLength(Name.size()),name(new (Ctx, 1) char[nameLength]) | |||
6515 | { | |||
6516 | if (!Name.empty()) | |||
6517 | std::memcpy(name, Name.data(), nameLength); | |||
6518 | } | |||
6519 | ||||
6520 | PragmaClangDataSectionAttr *clone(ASTContext &C) const; | |||
6521 | void printPretty(raw_ostream &OS, | |||
6522 | const PrintingPolicy &Policy) const; | |||
6523 | const char *getSpelling() const; | |||
6524 | llvm::StringRef getName() const { | |||
6525 | return llvm::StringRef(name, nameLength); | |||
6526 | } | |||
6527 | unsigned getNameLength() const { | |||
6528 | return nameLength; | |||
6529 | } | |||
6530 | void setName(ASTContext &C, llvm::StringRef S) { | |||
6531 | nameLength = S.size(); | |||
6532 | this->name = new (C, 1) char [nameLength]; | |||
6533 | if (!S.empty()) | |||
6534 | std::memcpy(this->name, S.data(), nameLength); | |||
6535 | } | |||
6536 | ||||
6537 | ||||
6538 | ||||
6539 | static bool classof(const Attr *A) { return A->getKind() == attr::PragmaClangDataSection; } | |||
6540 | }; | |||
6541 | ||||
6542 | class PragmaClangRodataSectionAttr : public InheritableAttr { | |||
6543 | unsigned nameLength; | |||
6544 | char *name; | |||
6545 | ||||
6546 | public: | |||
6547 | static PragmaClangRodataSectionAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Name, SourceRange Loc = SourceRange()) { | |||
6548 | auto *A = new (Ctx) PragmaClangRodataSectionAttr(Loc, Ctx, Name, 0); | |||
6549 | A->setImplicit(true); | |||
6550 | return A; | |||
6551 | } | |||
6552 | ||||
6553 | PragmaClangRodataSectionAttr(SourceRange R, ASTContext &Ctx | |||
6554 | , llvm::StringRef Name | |||
6555 | , unsigned SI | |||
6556 | ) | |||
6557 | : InheritableAttr(attr::PragmaClangRodataSection, R, SI, false, false) | |||
6558 | , nameLength(Name.size()),name(new (Ctx, 1) char[nameLength]) | |||
6559 | { | |||
6560 | if (!Name.empty()) | |||
6561 | std::memcpy(name, Name.data(), nameLength); | |||
6562 | } | |||
6563 | ||||
6564 | PragmaClangRodataSectionAttr *clone(ASTContext &C) const; | |||
6565 | void printPretty(raw_ostream &OS, | |||
6566 | const PrintingPolicy &Policy) const; | |||
6567 | const char *getSpelling() const; | |||
6568 | llvm::StringRef getName() const { | |||
6569 | return llvm::StringRef(name, nameLength); | |||
6570 | } | |||
6571 | unsigned getNameLength() const { | |||
6572 | return nameLength; | |||
6573 | } | |||
6574 | void setName(ASTContext &C, llvm::StringRef S) { | |||
6575 | nameLength = S.size(); | |||
6576 | this->name = new (C, 1) char [nameLength]; | |||
6577 | if (!S.empty()) | |||
6578 | std::memcpy(this->name, S.data(), nameLength); | |||
6579 | } | |||
6580 | ||||
6581 | ||||
6582 | ||||
6583 | static bool classof(const Attr *A) { return A->getKind() == attr::PragmaClangRodataSection; } | |||
6584 | }; | |||
6585 | ||||
6586 | class PragmaClangTextSectionAttr : public InheritableAttr { | |||
6587 | unsigned nameLength; | |||
6588 | char *name; | |||
6589 | ||||
6590 | public: | |||
6591 | static PragmaClangTextSectionAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Name, SourceRange Loc = SourceRange()) { | |||
6592 | auto *A = new (Ctx) PragmaClangTextSectionAttr(Loc, Ctx, Name, 0); | |||
6593 | A->setImplicit(true); | |||
6594 | return A; | |||
6595 | } | |||
6596 | ||||
6597 | PragmaClangTextSectionAttr(SourceRange R, ASTContext &Ctx | |||
6598 | , llvm::StringRef Name | |||
6599 | , unsigned SI | |||
6600 | ) | |||
6601 | : InheritableAttr(attr::PragmaClangTextSection, R, SI, false, false) | |||
6602 | , nameLength(Name.size()),name(new (Ctx, 1) char[nameLength]) | |||
6603 | { | |||
6604 | if (!Name.empty()) | |||
6605 | std::memcpy(name, Name.data(), nameLength); | |||
6606 | } | |||
6607 | ||||
6608 | PragmaClangTextSectionAttr *clone(ASTContext &C) const; | |||
6609 | void printPretty(raw_ostream &OS, | |||
6610 | const PrintingPolicy &Policy) const; | |||
6611 | const char *getSpelling() const; | |||
6612 | llvm::StringRef getName() const { | |||
6613 | return llvm::StringRef(name, nameLength); | |||
6614 | } | |||
6615 | unsigned getNameLength() const { | |||
6616 | return nameLength; | |||
6617 | } | |||
6618 | void setName(ASTContext &C, llvm::StringRef S) { | |||
6619 | nameLength = S.size(); | |||
6620 | this->name = new (C, 1) char [nameLength]; | |||
6621 | if (!S.empty()) | |||
6622 | std::memcpy(this->name, S.data(), nameLength); | |||
6623 | } | |||
6624 | ||||
6625 | ||||
6626 | ||||
6627 | static bool classof(const Attr *A) { return A->getKind() == attr::PragmaClangTextSection; } | |||
6628 | }; | |||
6629 | ||||
6630 | class PreserveAllAttr : public InheritableAttr { | |||
6631 | public: | |||
6632 | static PreserveAllAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6633 | auto *A = new (Ctx) PreserveAllAttr(Loc, Ctx, 0); | |||
6634 | A->setImplicit(true); | |||
6635 | return A; | |||
6636 | } | |||
6637 | ||||
6638 | PreserveAllAttr(SourceRange R, ASTContext &Ctx | |||
6639 | , unsigned SI | |||
6640 | ) | |||
6641 | : InheritableAttr(attr::PreserveAll, R, SI, false, false) | |||
6642 | { | |||
6643 | } | |||
6644 | ||||
6645 | PreserveAllAttr *clone(ASTContext &C) const; | |||
6646 | void printPretty(raw_ostream &OS, | |||
6647 | const PrintingPolicy &Policy) const; | |||
6648 | const char *getSpelling() const; | |||
6649 | ||||
6650 | ||||
6651 | static bool classof(const Attr *A) { return A->getKind() == attr::PreserveAll; } | |||
6652 | }; | |||
6653 | ||||
6654 | class PreserveMostAttr : public InheritableAttr { | |||
6655 | public: | |||
6656 | static PreserveMostAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6657 | auto *A = new (Ctx) PreserveMostAttr(Loc, Ctx, 0); | |||
6658 | A->setImplicit(true); | |||
6659 | return A; | |||
6660 | } | |||
6661 | ||||
6662 | PreserveMostAttr(SourceRange R, ASTContext &Ctx | |||
6663 | , unsigned SI | |||
6664 | ) | |||
6665 | : InheritableAttr(attr::PreserveMost, R, SI, false, false) | |||
6666 | { | |||
6667 | } | |||
6668 | ||||
6669 | PreserveMostAttr *clone(ASTContext &C) const; | |||
6670 | void printPretty(raw_ostream &OS, | |||
6671 | const PrintingPolicy &Policy) const; | |||
6672 | const char *getSpelling() const; | |||
6673 | ||||
6674 | ||||
6675 | static bool classof(const Attr *A) { return A->getKind() == attr::PreserveMost; } | |||
6676 | }; | |||
6677 | ||||
6678 | class PtGuardedByAttr : public InheritableAttr { | |||
6679 | Expr * arg; | |||
6680 | ||||
6681 | public: | |||
6682 | static PtGuardedByAttr *CreateImplicit(ASTContext &Ctx, Expr * Arg, SourceRange Loc = SourceRange()) { | |||
6683 | auto *A = new (Ctx) PtGuardedByAttr(Loc, Ctx, Arg, 0); | |||
6684 | A->setImplicit(true); | |||
6685 | return A; | |||
6686 | } | |||
6687 | ||||
6688 | PtGuardedByAttr(SourceRange R, ASTContext &Ctx | |||
6689 | , Expr * Arg | |||
6690 | , unsigned SI | |||
6691 | ) | |||
6692 | : InheritableAttr(attr::PtGuardedBy, R, SI, true, true) | |||
6693 | , arg(Arg) | |||
6694 | { | |||
6695 | } | |||
6696 | ||||
6697 | PtGuardedByAttr *clone(ASTContext &C) const; | |||
6698 | void printPretty(raw_ostream &OS, | |||
6699 | const PrintingPolicy &Policy) const; | |||
6700 | const char *getSpelling() const; | |||
6701 | Expr * getArg() const { | |||
6702 | return arg; | |||
6703 | } | |||
6704 | ||||
6705 | ||||
6706 | ||||
6707 | static bool classof(const Attr *A) { return A->getKind() == attr::PtGuardedBy; } | |||
6708 | }; | |||
6709 | ||||
6710 | class PtGuardedVarAttr : public InheritableAttr { | |||
6711 | public: | |||
6712 | static PtGuardedVarAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6713 | auto *A = new (Ctx) PtGuardedVarAttr(Loc, Ctx, 0); | |||
6714 | A->setImplicit(true); | |||
6715 | return A; | |||
6716 | } | |||
6717 | ||||
6718 | PtGuardedVarAttr(SourceRange R, ASTContext &Ctx | |||
6719 | , unsigned SI | |||
6720 | ) | |||
6721 | : InheritableAttr(attr::PtGuardedVar, R, SI, false, false) | |||
6722 | { | |||
6723 | } | |||
6724 | ||||
6725 | PtGuardedVarAttr *clone(ASTContext &C) const; | |||
6726 | void printPretty(raw_ostream &OS, | |||
6727 | const PrintingPolicy &Policy) const; | |||
6728 | const char *getSpelling() const; | |||
6729 | ||||
6730 | ||||
6731 | static bool classof(const Attr *A) { return A->getKind() == attr::PtGuardedVar; } | |||
6732 | }; | |||
6733 | ||||
6734 | class PureAttr : public InheritableAttr { | |||
6735 | public: | |||
6736 | static PureAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6737 | auto *A = new (Ctx) PureAttr(Loc, Ctx, 0); | |||
6738 | A->setImplicit(true); | |||
6739 | return A; | |||
6740 | } | |||
6741 | ||||
6742 | PureAttr(SourceRange R, ASTContext &Ctx | |||
6743 | , unsigned SI | |||
6744 | ) | |||
6745 | : InheritableAttr(attr::Pure, R, SI, false, false) | |||
6746 | { | |||
6747 | } | |||
6748 | ||||
6749 | PureAttr *clone(ASTContext &C) const; | |||
6750 | void printPretty(raw_ostream &OS, | |||
6751 | const PrintingPolicy &Policy) const; | |||
6752 | const char *getSpelling() const; | |||
6753 | ||||
6754 | ||||
6755 | static bool classof(const Attr *A) { return A->getKind() == attr::Pure; } | |||
6756 | }; | |||
6757 | ||||
6758 | class RegCallAttr : public InheritableAttr { | |||
6759 | public: | |||
6760 | static RegCallAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6761 | auto *A = new (Ctx) RegCallAttr(Loc, Ctx, 0); | |||
6762 | A->setImplicit(true); | |||
6763 | return A; | |||
6764 | } | |||
6765 | ||||
6766 | RegCallAttr(SourceRange R, ASTContext &Ctx | |||
6767 | , unsigned SI | |||
6768 | ) | |||
6769 | : InheritableAttr(attr::RegCall, R, SI, false, false) | |||
6770 | { | |||
6771 | } | |||
6772 | ||||
6773 | RegCallAttr *clone(ASTContext &C) const; | |||
6774 | void printPretty(raw_ostream &OS, | |||
6775 | const PrintingPolicy &Policy) const; | |||
6776 | const char *getSpelling() const; | |||
6777 | ||||
6778 | ||||
6779 | static bool classof(const Attr *A) { return A->getKind() == attr::RegCall; } | |||
6780 | }; | |||
6781 | ||||
6782 | class ReleaseCapabilityAttr : public InheritableAttr { | |||
6783 | unsigned args_Size; | |||
6784 | Expr * *args_; | |||
6785 | ||||
6786 | public: | |||
6787 | enum Spelling { | |||
6788 | GNU_release_capability = 0, | |||
6789 | CXX11_clang_release_capability = 1, | |||
6790 | GNU_release_shared_capability = 2, | |||
6791 | CXX11_clang_release_shared_capability = 3, | |||
6792 | GNU_release_generic_capability = 4, | |||
6793 | CXX11_clang_release_generic_capability = 5, | |||
6794 | GNU_unlock_function = 6, | |||
6795 | CXX11_clang_unlock_function = 7 | |||
6796 | }; | |||
6797 | ||||
6798 | static ReleaseCapabilityAttr *CreateImplicit(ASTContext &Ctx, Spelling S, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
6799 | auto *A = new (Ctx) ReleaseCapabilityAttr(Loc, Ctx, Args, ArgsSize, S); | |||
6800 | A->setImplicit(true); | |||
6801 | return A; | |||
6802 | } | |||
6803 | ||||
6804 | ReleaseCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
6805 | , Expr * *Args, unsigned ArgsSize | |||
6806 | , unsigned SI | |||
6807 | ) | |||
6808 | : InheritableAttr(attr::ReleaseCapability, R, SI, true, true) | |||
6809 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
6810 | { | |||
6811 | std::copy(Args, Args + args_Size, args_); | |||
6812 | } | |||
6813 | ||||
6814 | ReleaseCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
6815 | , unsigned SI | |||
6816 | ) | |||
6817 | : InheritableAttr(attr::ReleaseCapability, R, SI, true, true) | |||
6818 | , args_Size(0), args_(nullptr) | |||
6819 | { | |||
6820 | } | |||
6821 | ||||
6822 | ReleaseCapabilityAttr *clone(ASTContext &C) const; | |||
6823 | void printPretty(raw_ostream &OS, | |||
6824 | const PrintingPolicy &Policy) const; | |||
6825 | const char *getSpelling() const; | |||
6826 | Spelling getSemanticSpelling() const { | |||
6827 | switch (SpellingListIndex) { | |||
6828 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 6828); | |||
6829 | case 0: return GNU_release_capability; | |||
6830 | case 1: return CXX11_clang_release_capability; | |||
6831 | case 2: return GNU_release_shared_capability; | |||
6832 | case 3: return CXX11_clang_release_shared_capability; | |||
6833 | case 4: return GNU_release_generic_capability; | |||
6834 | case 5: return CXX11_clang_release_generic_capability; | |||
6835 | case 6: return GNU_unlock_function; | |||
6836 | case 7: return CXX11_clang_unlock_function; | |||
6837 | } | |||
6838 | } | |||
6839 | bool isShared() const { return SpellingListIndex == 2 || | |||
6840 | SpellingListIndex == 3; } | |||
6841 | bool isGeneric() const { return SpellingListIndex == 4 || | |||
6842 | SpellingListIndex == 5 || | |||
6843 | SpellingListIndex == 6 || | |||
6844 | SpellingListIndex == 7; } | |||
6845 | typedef Expr ** args_iterator; | |||
6846 | args_iterator args_begin() const { return args_; } | |||
6847 | args_iterator args_end() const { return args_ + args_Size; } | |||
6848 | unsigned args_size() const { return args_Size; } | |||
6849 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
6850 | ||||
6851 | ||||
6852 | ||||
6853 | ||||
6854 | static bool classof(const Attr *A) { return A->getKind() == attr::ReleaseCapability; } | |||
6855 | }; | |||
6856 | ||||
6857 | class RenderScriptKernelAttr : public Attr { | |||
6858 | public: | |||
6859 | static RenderScriptKernelAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6860 | auto *A = new (Ctx) RenderScriptKernelAttr(Loc, Ctx, 0); | |||
6861 | A->setImplicit(true); | |||
6862 | return A; | |||
6863 | } | |||
6864 | ||||
6865 | RenderScriptKernelAttr(SourceRange R, ASTContext &Ctx | |||
6866 | , unsigned SI | |||
6867 | ) | |||
6868 | : Attr(attr::RenderScriptKernel, R, SI, false) | |||
6869 | { | |||
6870 | } | |||
6871 | ||||
6872 | RenderScriptKernelAttr *clone(ASTContext &C) const; | |||
6873 | void printPretty(raw_ostream &OS, | |||
6874 | const PrintingPolicy &Policy) const; | |||
6875 | const char *getSpelling() const; | |||
6876 | ||||
6877 | ||||
6878 | static bool classof(const Attr *A) { return A->getKind() == attr::RenderScriptKernel; } | |||
6879 | }; | |||
6880 | ||||
6881 | class ReqdWorkGroupSizeAttr : public InheritableAttr { | |||
6882 | unsigned xDim; | |||
6883 | ||||
6884 | unsigned yDim; | |||
6885 | ||||
6886 | unsigned zDim; | |||
6887 | ||||
6888 | public: | |||
6889 | static ReqdWorkGroupSizeAttr *CreateImplicit(ASTContext &Ctx, unsigned XDim, unsigned YDim, unsigned ZDim, SourceRange Loc = SourceRange()) { | |||
6890 | auto *A = new (Ctx) ReqdWorkGroupSizeAttr(Loc, Ctx, XDim, YDim, ZDim, 0); | |||
6891 | A->setImplicit(true); | |||
6892 | return A; | |||
6893 | } | |||
6894 | ||||
6895 | ReqdWorkGroupSizeAttr(SourceRange R, ASTContext &Ctx | |||
6896 | , unsigned XDim | |||
6897 | , unsigned YDim | |||
6898 | , unsigned ZDim | |||
6899 | , unsigned SI | |||
6900 | ) | |||
6901 | : InheritableAttr(attr::ReqdWorkGroupSize, R, SI, false, false) | |||
6902 | , xDim(XDim) | |||
6903 | , yDim(YDim) | |||
6904 | , zDim(ZDim) | |||
6905 | { | |||
6906 | } | |||
6907 | ||||
6908 | ReqdWorkGroupSizeAttr *clone(ASTContext &C) const; | |||
6909 | void printPretty(raw_ostream &OS, | |||
6910 | const PrintingPolicy &Policy) const; | |||
6911 | const char *getSpelling() const; | |||
6912 | unsigned getXDim() const { | |||
6913 | return xDim; | |||
6914 | } | |||
6915 | ||||
6916 | unsigned getYDim() const { | |||
6917 | return yDim; | |||
6918 | } | |||
6919 | ||||
6920 | unsigned getZDim() const { | |||
6921 | return zDim; | |||
6922 | } | |||
6923 | ||||
6924 | ||||
6925 | ||||
6926 | static bool classof(const Attr *A) { return A->getKind() == attr::ReqdWorkGroupSize; } | |||
6927 | }; | |||
6928 | ||||
6929 | class RequireConstantInitAttr : public InheritableAttr { | |||
6930 | public: | |||
6931 | static RequireConstantInitAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
6932 | auto *A = new (Ctx) RequireConstantInitAttr(Loc, Ctx, 0); | |||
6933 | A->setImplicit(true); | |||
6934 | return A; | |||
6935 | } | |||
6936 | ||||
6937 | RequireConstantInitAttr(SourceRange R, ASTContext &Ctx | |||
6938 | , unsigned SI | |||
6939 | ) | |||
6940 | : InheritableAttr(attr::RequireConstantInit, R, SI, false, false) | |||
6941 | { | |||
6942 | } | |||
6943 | ||||
6944 | RequireConstantInitAttr *clone(ASTContext &C) const; | |||
6945 | void printPretty(raw_ostream &OS, | |||
6946 | const PrintingPolicy &Policy) const; | |||
6947 | const char *getSpelling() const; | |||
6948 | ||||
6949 | ||||
6950 | static bool classof(const Attr *A) { return A->getKind() == attr::RequireConstantInit; } | |||
6951 | }; | |||
6952 | ||||
6953 | class RequiresCapabilityAttr : public InheritableAttr { | |||
6954 | unsigned args_Size; | |||
6955 | Expr * *args_; | |||
6956 | ||||
6957 | public: | |||
6958 | enum Spelling { | |||
6959 | GNU_requires_capability = 0, | |||
6960 | CXX11_clang_requires_capability = 1, | |||
6961 | GNU_exclusive_locks_required = 2, | |||
6962 | CXX11_clang_exclusive_locks_required = 3, | |||
6963 | GNU_requires_shared_capability = 4, | |||
6964 | CXX11_clang_requires_shared_capability = 5, | |||
6965 | GNU_shared_locks_required = 6, | |||
6966 | CXX11_clang_shared_locks_required = 7 | |||
6967 | }; | |||
6968 | ||||
6969 | static RequiresCapabilityAttr *CreateImplicit(ASTContext &Ctx, Spelling S, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
6970 | auto *A = new (Ctx) RequiresCapabilityAttr(Loc, Ctx, Args, ArgsSize, S); | |||
6971 | A->setImplicit(true); | |||
6972 | return A; | |||
6973 | } | |||
6974 | ||||
6975 | RequiresCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
6976 | , Expr * *Args, unsigned ArgsSize | |||
6977 | , unsigned SI | |||
6978 | ) | |||
6979 | : InheritableAttr(attr::RequiresCapability, R, SI, true, true) | |||
6980 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
6981 | { | |||
6982 | std::copy(Args, Args + args_Size, args_); | |||
6983 | } | |||
6984 | ||||
6985 | RequiresCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
6986 | , unsigned SI | |||
6987 | ) | |||
6988 | : InheritableAttr(attr::RequiresCapability, R, SI, true, true) | |||
6989 | , args_Size(0), args_(nullptr) | |||
6990 | { | |||
6991 | } | |||
6992 | ||||
6993 | RequiresCapabilityAttr *clone(ASTContext &C) const; | |||
6994 | void printPretty(raw_ostream &OS, | |||
6995 | const PrintingPolicy &Policy) const; | |||
6996 | const char *getSpelling() const; | |||
6997 | Spelling getSemanticSpelling() const { | |||
6998 | switch (SpellingListIndex) { | |||
6999 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 6999); | |||
7000 | case 0: return GNU_requires_capability; | |||
7001 | case 1: return CXX11_clang_requires_capability; | |||
7002 | case 2: return GNU_exclusive_locks_required; | |||
7003 | case 3: return CXX11_clang_exclusive_locks_required; | |||
7004 | case 4: return GNU_requires_shared_capability; | |||
7005 | case 5: return CXX11_clang_requires_shared_capability; | |||
7006 | case 6: return GNU_shared_locks_required; | |||
7007 | case 7: return CXX11_clang_shared_locks_required; | |||
7008 | } | |||
7009 | } | |||
7010 | bool isShared() const { return SpellingListIndex == 4 || | |||
7011 | SpellingListIndex == 5 || | |||
7012 | SpellingListIndex == 6 || | |||
7013 | SpellingListIndex == 7; } | |||
7014 | typedef Expr ** args_iterator; | |||
7015 | args_iterator args_begin() const { return args_; } | |||
7016 | args_iterator args_end() const { return args_ + args_Size; } | |||
7017 | unsigned args_size() const { return args_Size; } | |||
7018 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
7019 | ||||
7020 | ||||
7021 | ||||
7022 | ||||
7023 | static bool classof(const Attr *A) { return A->getKind() == attr::RequiresCapability; } | |||
7024 | }; | |||
7025 | ||||
7026 | class RestrictAttr : public InheritableAttr { | |||
7027 | public: | |||
7028 | enum Spelling { | |||
7029 | Declspec_restrict = 0, | |||
7030 | GNU_malloc = 1, | |||
7031 | CXX11_gnu_malloc = 2 | |||
7032 | }; | |||
7033 | ||||
7034 | static RestrictAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
7035 | auto *A = new (Ctx) RestrictAttr(Loc, Ctx, S); | |||
7036 | A->setImplicit(true); | |||
7037 | return A; | |||
7038 | } | |||
7039 | ||||
7040 | RestrictAttr(SourceRange R, ASTContext &Ctx | |||
7041 | , unsigned SI | |||
7042 | ) | |||
7043 | : InheritableAttr(attr::Restrict, R, SI, false, false) | |||
7044 | { | |||
7045 | } | |||
7046 | ||||
7047 | RestrictAttr *clone(ASTContext &C) const; | |||
7048 | void printPretty(raw_ostream &OS, | |||
7049 | const PrintingPolicy &Policy) const; | |||
7050 | const char *getSpelling() const; | |||
7051 | Spelling getSemanticSpelling() const { | |||
7052 | switch (SpellingListIndex) { | |||
7053 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 7053); | |||
7054 | case 0: return Declspec_restrict; | |||
7055 | case 1: return GNU_malloc; | |||
7056 | case 2: return CXX11_gnu_malloc; | |||
7057 | } | |||
7058 | } | |||
7059 | ||||
7060 | ||||
7061 | static bool classof(const Attr *A) { return A->getKind() == attr::Restrict; } | |||
7062 | }; | |||
7063 | ||||
7064 | class ReturnTypestateAttr : public InheritableAttr { | |||
7065 | public: | |||
7066 | enum ConsumedState { | |||
7067 | Unknown, | |||
7068 | Consumed, | |||
7069 | Unconsumed | |||
7070 | }; | |||
7071 | private: | |||
7072 | ConsumedState state; | |||
7073 | ||||
7074 | public: | |||
7075 | static ReturnTypestateAttr *CreateImplicit(ASTContext &Ctx, ConsumedState State, SourceRange Loc = SourceRange()) { | |||
7076 | auto *A = new (Ctx) ReturnTypestateAttr(Loc, Ctx, State, 0); | |||
7077 | A->setImplicit(true); | |||
7078 | return A; | |||
7079 | } | |||
7080 | ||||
7081 | ReturnTypestateAttr(SourceRange R, ASTContext &Ctx | |||
7082 | , ConsumedState State | |||
7083 | , unsigned SI | |||
7084 | ) | |||
7085 | : InheritableAttr(attr::ReturnTypestate, R, SI, false, false) | |||
7086 | , state(State) | |||
7087 | { | |||
7088 | } | |||
7089 | ||||
7090 | ReturnTypestateAttr *clone(ASTContext &C) const; | |||
7091 | void printPretty(raw_ostream &OS, | |||
7092 | const PrintingPolicy &Policy) const; | |||
7093 | const char *getSpelling() const; | |||
7094 | ConsumedState getState() const { | |||
7095 | return state; | |||
7096 | } | |||
7097 | ||||
7098 | static bool ConvertStrToConsumedState(StringRef Val, ConsumedState &Out) { | |||
7099 | Optional<ConsumedState> R = llvm::StringSwitch<Optional<ConsumedState>>(Val) | |||
7100 | .Case("unknown", ReturnTypestateAttr::Unknown) | |||
7101 | .Case("consumed", ReturnTypestateAttr::Consumed) | |||
7102 | .Case("unconsumed", ReturnTypestateAttr::Unconsumed) | |||
7103 | .Default(Optional<ConsumedState>()); | |||
7104 | if (R) { | |||
7105 | Out = *R; | |||
7106 | return true; | |||
7107 | } | |||
7108 | return false; | |||
7109 | } | |||
7110 | ||||
7111 | static const char *ConvertConsumedStateToStr(ConsumedState Val) { | |||
7112 | switch(Val) { | |||
7113 | case ReturnTypestateAttr::Unknown: return "unknown"; | |||
7114 | case ReturnTypestateAttr::Consumed: return "consumed"; | |||
7115 | case ReturnTypestateAttr::Unconsumed: return "unconsumed"; | |||
7116 | } | |||
7117 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 7117); | |||
7118 | } | |||
7119 | ||||
7120 | ||||
7121 | static bool classof(const Attr *A) { return A->getKind() == attr::ReturnTypestate; } | |||
7122 | }; | |||
7123 | ||||
7124 | class ReturnsNonNullAttr : public InheritableAttr { | |||
7125 | public: | |||
7126 | static ReturnsNonNullAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7127 | auto *A = new (Ctx) ReturnsNonNullAttr(Loc, Ctx, 0); | |||
7128 | A->setImplicit(true); | |||
7129 | return A; | |||
7130 | } | |||
7131 | ||||
7132 | ReturnsNonNullAttr(SourceRange R, ASTContext &Ctx | |||
7133 | , unsigned SI | |||
7134 | ) | |||
7135 | : InheritableAttr(attr::ReturnsNonNull, R, SI, false, false) | |||
7136 | { | |||
7137 | } | |||
7138 | ||||
7139 | ReturnsNonNullAttr *clone(ASTContext &C) const; | |||
7140 | void printPretty(raw_ostream &OS, | |||
7141 | const PrintingPolicy &Policy) const; | |||
7142 | const char *getSpelling() const; | |||
7143 | ||||
7144 | ||||
7145 | static bool classof(const Attr *A) { return A->getKind() == attr::ReturnsNonNull; } | |||
7146 | }; | |||
7147 | ||||
7148 | class ReturnsTwiceAttr : public InheritableAttr { | |||
7149 | public: | |||
7150 | static ReturnsTwiceAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7151 | auto *A = new (Ctx) ReturnsTwiceAttr(Loc, Ctx, 0); | |||
7152 | A->setImplicit(true); | |||
7153 | return A; | |||
7154 | } | |||
7155 | ||||
7156 | ReturnsTwiceAttr(SourceRange R, ASTContext &Ctx | |||
7157 | , unsigned SI | |||
7158 | ) | |||
7159 | : InheritableAttr(attr::ReturnsTwice, R, SI, false, false) | |||
7160 | { | |||
7161 | } | |||
7162 | ||||
7163 | ReturnsTwiceAttr *clone(ASTContext &C) const; | |||
7164 | void printPretty(raw_ostream &OS, | |||
7165 | const PrintingPolicy &Policy) const; | |||
7166 | const char *getSpelling() const; | |||
7167 | ||||
7168 | ||||
7169 | static bool classof(const Attr *A) { return A->getKind() == attr::ReturnsTwice; } | |||
7170 | }; | |||
7171 | ||||
7172 | class ScopedLockableAttr : public InheritableAttr { | |||
7173 | public: | |||
7174 | static ScopedLockableAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7175 | auto *A = new (Ctx) ScopedLockableAttr(Loc, Ctx, 0); | |||
7176 | A->setImplicit(true); | |||
7177 | return A; | |||
7178 | } | |||
7179 | ||||
7180 | ScopedLockableAttr(SourceRange R, ASTContext &Ctx | |||
7181 | , unsigned SI | |||
7182 | ) | |||
7183 | : InheritableAttr(attr::ScopedLockable, R, SI, false, false) | |||
7184 | { | |||
7185 | } | |||
7186 | ||||
7187 | ScopedLockableAttr *clone(ASTContext &C) const; | |||
7188 | void printPretty(raw_ostream &OS, | |||
7189 | const PrintingPolicy &Policy) const; | |||
7190 | const char *getSpelling() const; | |||
7191 | ||||
7192 | ||||
7193 | static bool classof(const Attr *A) { return A->getKind() == attr::ScopedLockable; } | |||
7194 | }; | |||
7195 | ||||
7196 | class SectionAttr : public InheritableAttr { | |||
7197 | unsigned nameLength; | |||
7198 | char *name; | |||
7199 | ||||
7200 | public: | |||
7201 | enum Spelling { | |||
7202 | GNU_section = 0, | |||
7203 | CXX11_gnu_section = 1, | |||
7204 | Declspec_allocate = 2 | |||
7205 | }; | |||
7206 | ||||
7207 | static SectionAttr *CreateImplicit(ASTContext &Ctx, Spelling S, llvm::StringRef Name, SourceRange Loc = SourceRange()) { | |||
7208 | auto *A = new (Ctx) SectionAttr(Loc, Ctx, Name, S); | |||
7209 | A->setImplicit(true); | |||
7210 | return A; | |||
7211 | } | |||
7212 | ||||
7213 | SectionAttr(SourceRange R, ASTContext &Ctx | |||
7214 | , llvm::StringRef Name | |||
7215 | , unsigned SI | |||
7216 | ) | |||
7217 | : InheritableAttr(attr::Section, R, SI, false, false) | |||
7218 | , nameLength(Name.size()),name(new (Ctx, 1) char[nameLength]) | |||
7219 | { | |||
7220 | if (!Name.empty()) | |||
7221 | std::memcpy(name, Name.data(), nameLength); | |||
7222 | } | |||
7223 | ||||
7224 | SectionAttr *clone(ASTContext &C) const; | |||
7225 | void printPretty(raw_ostream &OS, | |||
7226 | const PrintingPolicy &Policy) const; | |||
7227 | const char *getSpelling() const; | |||
7228 | Spelling getSemanticSpelling() const { | |||
7229 | switch (SpellingListIndex) { | |||
7230 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 7230); | |||
7231 | case 0: return GNU_section; | |||
7232 | case 1: return CXX11_gnu_section; | |||
7233 | case 2: return Declspec_allocate; | |||
7234 | } | |||
7235 | } | |||
7236 | llvm::StringRef getName() const { | |||
7237 | return llvm::StringRef(name, nameLength); | |||
7238 | } | |||
7239 | unsigned getNameLength() const { | |||
7240 | return nameLength; | |||
7241 | } | |||
7242 | void setName(ASTContext &C, llvm::StringRef S) { | |||
7243 | nameLength = S.size(); | |||
7244 | this->name = new (C, 1) char [nameLength]; | |||
7245 | if (!S.empty()) | |||
7246 | std::memcpy(this->name, S.data(), nameLength); | |||
7247 | } | |||
7248 | ||||
7249 | ||||
7250 | ||||
7251 | static bool classof(const Attr *A) { return A->getKind() == attr::Section; } | |||
7252 | }; | |||
7253 | ||||
7254 | class SelectAnyAttr : public InheritableAttr { | |||
7255 | public: | |||
7256 | static SelectAnyAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7257 | auto *A = new (Ctx) SelectAnyAttr(Loc, Ctx, 0); | |||
7258 | A->setImplicit(true); | |||
7259 | return A; | |||
7260 | } | |||
7261 | ||||
7262 | SelectAnyAttr(SourceRange R, ASTContext &Ctx | |||
7263 | , unsigned SI | |||
7264 | ) | |||
7265 | : InheritableAttr(attr::SelectAny, R, SI, false, false) | |||
7266 | { | |||
7267 | } | |||
7268 | ||||
7269 | SelectAnyAttr *clone(ASTContext &C) const; | |||
7270 | void printPretty(raw_ostream &OS, | |||
7271 | const PrintingPolicy &Policy) const; | |||
7272 | const char *getSpelling() const; | |||
7273 | ||||
7274 | ||||
7275 | static bool classof(const Attr *A) { return A->getKind() == attr::SelectAny; } | |||
7276 | }; | |||
7277 | ||||
7278 | class SentinelAttr : public InheritableAttr { | |||
7279 | int sentinel; | |||
7280 | ||||
7281 | int nullPos; | |||
7282 | ||||
7283 | public: | |||
7284 | static SentinelAttr *CreateImplicit(ASTContext &Ctx, int Sentinel, int NullPos, SourceRange Loc = SourceRange()) { | |||
7285 | auto *A = new (Ctx) SentinelAttr(Loc, Ctx, Sentinel, NullPos, 0); | |||
7286 | A->setImplicit(true); | |||
7287 | return A; | |||
7288 | } | |||
7289 | ||||
7290 | SentinelAttr(SourceRange R, ASTContext &Ctx | |||
7291 | , int Sentinel | |||
7292 | , int NullPos | |||
7293 | , unsigned SI | |||
7294 | ) | |||
7295 | : InheritableAttr(attr::Sentinel, R, SI, false, false) | |||
7296 | , sentinel(Sentinel) | |||
7297 | , nullPos(NullPos) | |||
7298 | { | |||
7299 | } | |||
7300 | ||||
7301 | SentinelAttr(SourceRange R, ASTContext &Ctx | |||
7302 | , unsigned SI | |||
7303 | ) | |||
7304 | : InheritableAttr(attr::Sentinel, R, SI, false, false) | |||
7305 | , sentinel() | |||
7306 | , nullPos() | |||
7307 | { | |||
7308 | } | |||
7309 | ||||
7310 | SentinelAttr *clone(ASTContext &C) const; | |||
7311 | void printPretty(raw_ostream &OS, | |||
7312 | const PrintingPolicy &Policy) const; | |||
7313 | const char *getSpelling() const; | |||
7314 | int getSentinel() const { | |||
7315 | return sentinel; | |||
7316 | } | |||
7317 | ||||
7318 | static const int DefaultSentinel = 0; | |||
7319 | ||||
7320 | int getNullPos() const { | |||
7321 | return nullPos; | |||
7322 | } | |||
7323 | ||||
7324 | static const int DefaultNullPos = 0; | |||
7325 | ||||
7326 | ||||
7327 | ||||
7328 | static bool classof(const Attr *A) { return A->getKind() == attr::Sentinel; } | |||
7329 | }; | |||
7330 | ||||
7331 | class SetTypestateAttr : public InheritableAttr { | |||
7332 | public: | |||
7333 | enum ConsumedState { | |||
7334 | Unknown, | |||
7335 | Consumed, | |||
7336 | Unconsumed | |||
7337 | }; | |||
7338 | private: | |||
7339 | ConsumedState newState; | |||
7340 | ||||
7341 | public: | |||
7342 | static SetTypestateAttr *CreateImplicit(ASTContext &Ctx, ConsumedState NewState, SourceRange Loc = SourceRange()) { | |||
7343 | auto *A = new (Ctx) SetTypestateAttr(Loc, Ctx, NewState, 0); | |||
7344 | A->setImplicit(true); | |||
7345 | return A; | |||
7346 | } | |||
7347 | ||||
7348 | SetTypestateAttr(SourceRange R, ASTContext &Ctx | |||
7349 | , ConsumedState NewState | |||
7350 | , unsigned SI | |||
7351 | ) | |||
7352 | : InheritableAttr(attr::SetTypestate, R, SI, false, false) | |||
7353 | , newState(NewState) | |||
7354 | { | |||
7355 | } | |||
7356 | ||||
7357 | SetTypestateAttr *clone(ASTContext &C) const; | |||
7358 | void printPretty(raw_ostream &OS, | |||
7359 | const PrintingPolicy &Policy) const; | |||
7360 | const char *getSpelling() const; | |||
7361 | ConsumedState getNewState() const { | |||
7362 | return newState; | |||
7363 | } | |||
7364 | ||||
7365 | static bool ConvertStrToConsumedState(StringRef Val, ConsumedState &Out) { | |||
7366 | Optional<ConsumedState> R = llvm::StringSwitch<Optional<ConsumedState>>(Val) | |||
7367 | .Case("unknown", SetTypestateAttr::Unknown) | |||
7368 | .Case("consumed", SetTypestateAttr::Consumed) | |||
7369 | .Case("unconsumed", SetTypestateAttr::Unconsumed) | |||
7370 | .Default(Optional<ConsumedState>()); | |||
7371 | if (R) { | |||
7372 | Out = *R; | |||
7373 | return true; | |||
7374 | } | |||
7375 | return false; | |||
7376 | } | |||
7377 | ||||
7378 | static const char *ConvertConsumedStateToStr(ConsumedState Val) { | |||
7379 | switch(Val) { | |||
7380 | case SetTypestateAttr::Unknown: return "unknown"; | |||
7381 | case SetTypestateAttr::Consumed: return "consumed"; | |||
7382 | case SetTypestateAttr::Unconsumed: return "unconsumed"; | |||
7383 | } | |||
7384 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 7384); | |||
7385 | } | |||
7386 | ||||
7387 | ||||
7388 | static bool classof(const Attr *A) { return A->getKind() == attr::SetTypestate; } | |||
7389 | }; | |||
7390 | ||||
7391 | class SharedTrylockFunctionAttr : public InheritableAttr { | |||
7392 | Expr * successValue; | |||
7393 | ||||
7394 | unsigned args_Size; | |||
7395 | Expr * *args_; | |||
7396 | ||||
7397 | public: | |||
7398 | static SharedTrylockFunctionAttr *CreateImplicit(ASTContext &Ctx, Expr * SuccessValue, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
7399 | auto *A = new (Ctx) SharedTrylockFunctionAttr(Loc, Ctx, SuccessValue, Args, ArgsSize, 0); | |||
7400 | A->setImplicit(true); | |||
7401 | return A; | |||
7402 | } | |||
7403 | ||||
7404 | SharedTrylockFunctionAttr(SourceRange R, ASTContext &Ctx | |||
7405 | , Expr * SuccessValue | |||
7406 | , Expr * *Args, unsigned ArgsSize | |||
7407 | , unsigned SI | |||
7408 | ) | |||
7409 | : InheritableAttr(attr::SharedTrylockFunction, R, SI, true, true) | |||
7410 | , successValue(SuccessValue) | |||
7411 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
7412 | { | |||
7413 | std::copy(Args, Args + args_Size, args_); | |||
7414 | } | |||
7415 | ||||
7416 | SharedTrylockFunctionAttr(SourceRange R, ASTContext &Ctx | |||
7417 | , Expr * SuccessValue | |||
7418 | , unsigned SI | |||
7419 | ) | |||
7420 | : InheritableAttr(attr::SharedTrylockFunction, R, SI, true, true) | |||
7421 | , successValue(SuccessValue) | |||
7422 | , args_Size(0), args_(nullptr) | |||
7423 | { | |||
7424 | } | |||
7425 | ||||
7426 | SharedTrylockFunctionAttr *clone(ASTContext &C) const; | |||
7427 | void printPretty(raw_ostream &OS, | |||
7428 | const PrintingPolicy &Policy) const; | |||
7429 | const char *getSpelling() const; | |||
7430 | Expr * getSuccessValue() const { | |||
7431 | return successValue; | |||
7432 | } | |||
7433 | ||||
7434 | typedef Expr ** args_iterator; | |||
7435 | args_iterator args_begin() const { return args_; } | |||
7436 | args_iterator args_end() const { return args_ + args_Size; } | |||
7437 | unsigned args_size() const { return args_Size; } | |||
7438 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
7439 | ||||
7440 | ||||
7441 | ||||
7442 | ||||
7443 | static bool classof(const Attr *A) { return A->getKind() == attr::SharedTrylockFunction; } | |||
7444 | }; | |||
7445 | ||||
7446 | class StdCallAttr : public InheritableAttr { | |||
7447 | public: | |||
7448 | static StdCallAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7449 | auto *A = new (Ctx) StdCallAttr(Loc, Ctx, 0); | |||
7450 | A->setImplicit(true); | |||
7451 | return A; | |||
7452 | } | |||
7453 | ||||
7454 | StdCallAttr(SourceRange R, ASTContext &Ctx | |||
7455 | , unsigned SI | |||
7456 | ) | |||
7457 | : InheritableAttr(attr::StdCall, R, SI, false, false) | |||
7458 | { | |||
7459 | } | |||
7460 | ||||
7461 | StdCallAttr *clone(ASTContext &C) const; | |||
7462 | void printPretty(raw_ostream &OS, | |||
7463 | const PrintingPolicy &Policy) const; | |||
7464 | const char *getSpelling() const; | |||
7465 | ||||
7466 | ||||
7467 | static bool classof(const Attr *A) { return A->getKind() == attr::StdCall; } | |||
7468 | }; | |||
7469 | ||||
7470 | class SuppressAttr : public StmtAttr { | |||
7471 | unsigned diagnosticIdentifiers_Size; | |||
7472 | StringRef *diagnosticIdentifiers_; | |||
7473 | ||||
7474 | public: | |||
7475 | static SuppressAttr *CreateImplicit(ASTContext &Ctx, StringRef *DiagnosticIdentifiers, unsigned DiagnosticIdentifiersSize, SourceRange Loc = SourceRange()) { | |||
7476 | auto *A = new (Ctx) SuppressAttr(Loc, Ctx, DiagnosticIdentifiers, DiagnosticIdentifiersSize, 0); | |||
7477 | A->setImplicit(true); | |||
7478 | return A; | |||
7479 | } | |||
7480 | ||||
7481 | SuppressAttr(SourceRange R, ASTContext &Ctx | |||
7482 | , StringRef *DiagnosticIdentifiers, unsigned DiagnosticIdentifiersSize | |||
7483 | , unsigned SI | |||
7484 | ) | |||
7485 | : StmtAttr(attr::Suppress, R, SI, false) | |||
7486 | , diagnosticIdentifiers_Size(DiagnosticIdentifiersSize), diagnosticIdentifiers_(new (Ctx, 16) StringRef[diagnosticIdentifiers_Size]) | |||
7487 | { | |||
7488 | for (size_t I = 0, E = diagnosticIdentifiers_Size; I != E; | |||
7489 | ++I) { | |||
7490 | StringRef Ref = DiagnosticIdentifiers[I]; | |||
7491 | if (!Ref.empty()) { | |||
7492 | char *Mem = new (Ctx, 1) char[Ref.size()]; | |||
7493 | std::memcpy(Mem, Ref.data(), Ref.size()); | |||
7494 | diagnosticIdentifiers_[I] = StringRef(Mem, Ref.size()); | |||
7495 | } | |||
7496 | } | |||
7497 | } | |||
7498 | ||||
7499 | SuppressAttr(SourceRange R, ASTContext &Ctx | |||
7500 | , unsigned SI | |||
7501 | ) | |||
7502 | : StmtAttr(attr::Suppress, R, SI, false) | |||
7503 | , diagnosticIdentifiers_Size(0), diagnosticIdentifiers_(nullptr) | |||
7504 | { | |||
7505 | } | |||
7506 | ||||
7507 | SuppressAttr *clone(ASTContext &C) const; | |||
7508 | void printPretty(raw_ostream &OS, | |||
7509 | const PrintingPolicy &Policy) const; | |||
7510 | const char *getSpelling() const; | |||
7511 | typedef StringRef* diagnosticIdentifiers_iterator; | |||
7512 | diagnosticIdentifiers_iterator diagnosticIdentifiers_begin() const { return diagnosticIdentifiers_; } | |||
7513 | diagnosticIdentifiers_iterator diagnosticIdentifiers_end() const { return diagnosticIdentifiers_ + diagnosticIdentifiers_Size; } | |||
7514 | unsigned diagnosticIdentifiers_size() const { return diagnosticIdentifiers_Size; } | |||
7515 | llvm::iterator_range<diagnosticIdentifiers_iterator> diagnosticIdentifiers() const { return llvm::make_range(diagnosticIdentifiers_begin(), diagnosticIdentifiers_end()); } | |||
7516 | ||||
7517 | ||||
7518 | ||||
7519 | ||||
7520 | static bool classof(const Attr *A) { return A->getKind() == attr::Suppress; } | |||
7521 | }; | |||
7522 | ||||
7523 | class SwiftCallAttr : public InheritableAttr { | |||
7524 | public: | |||
7525 | static SwiftCallAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7526 | auto *A = new (Ctx) SwiftCallAttr(Loc, Ctx, 0); | |||
7527 | A->setImplicit(true); | |||
7528 | return A; | |||
7529 | } | |||
7530 | ||||
7531 | SwiftCallAttr(SourceRange R, ASTContext &Ctx | |||
7532 | , unsigned SI | |||
7533 | ) | |||
7534 | : InheritableAttr(attr::SwiftCall, R, SI, false, false) | |||
7535 | { | |||
7536 | } | |||
7537 | ||||
7538 | SwiftCallAttr *clone(ASTContext &C) const; | |||
7539 | void printPretty(raw_ostream &OS, | |||
7540 | const PrintingPolicy &Policy) const; | |||
7541 | const char *getSpelling() const; | |||
7542 | ||||
7543 | ||||
7544 | static bool classof(const Attr *A) { return A->getKind() == attr::SwiftCall; } | |||
7545 | }; | |||
7546 | ||||
7547 | class SwiftContextAttr : public ParameterABIAttr { | |||
7548 | public: | |||
7549 | static SwiftContextAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7550 | auto *A = new (Ctx) SwiftContextAttr(Loc, Ctx, 0); | |||
7551 | A->setImplicit(true); | |||
7552 | return A; | |||
7553 | } | |||
7554 | ||||
7555 | SwiftContextAttr(SourceRange R, ASTContext &Ctx | |||
7556 | , unsigned SI | |||
7557 | ) | |||
7558 | : ParameterABIAttr(attr::SwiftContext, R, SI, false, false) | |||
7559 | { | |||
7560 | } | |||
7561 | ||||
7562 | SwiftContextAttr *clone(ASTContext &C) const; | |||
7563 | void printPretty(raw_ostream &OS, | |||
7564 | const PrintingPolicy &Policy) const; | |||
7565 | const char *getSpelling() const; | |||
7566 | ||||
7567 | ||||
7568 | static bool classof(const Attr *A) { return A->getKind() == attr::SwiftContext; } | |||
7569 | }; | |||
7570 | ||||
7571 | class SwiftErrorResultAttr : public ParameterABIAttr { | |||
7572 | public: | |||
7573 | static SwiftErrorResultAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7574 | auto *A = new (Ctx) SwiftErrorResultAttr(Loc, Ctx, 0); | |||
7575 | A->setImplicit(true); | |||
7576 | return A; | |||
7577 | } | |||
7578 | ||||
7579 | SwiftErrorResultAttr(SourceRange R, ASTContext &Ctx | |||
7580 | , unsigned SI | |||
7581 | ) | |||
7582 | : ParameterABIAttr(attr::SwiftErrorResult, R, SI, false, false) | |||
7583 | { | |||
7584 | } | |||
7585 | ||||
7586 | SwiftErrorResultAttr *clone(ASTContext &C) const; | |||
7587 | void printPretty(raw_ostream &OS, | |||
7588 | const PrintingPolicy &Policy) const; | |||
7589 | const char *getSpelling() const; | |||
7590 | ||||
7591 | ||||
7592 | static bool classof(const Attr *A) { return A->getKind() == attr::SwiftErrorResult; } | |||
7593 | }; | |||
7594 | ||||
7595 | class SwiftIndirectResultAttr : public ParameterABIAttr { | |||
7596 | public: | |||
7597 | static SwiftIndirectResultAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7598 | auto *A = new (Ctx) SwiftIndirectResultAttr(Loc, Ctx, 0); | |||
7599 | A->setImplicit(true); | |||
7600 | return A; | |||
7601 | } | |||
7602 | ||||
7603 | SwiftIndirectResultAttr(SourceRange R, ASTContext &Ctx | |||
7604 | , unsigned SI | |||
7605 | ) | |||
7606 | : ParameterABIAttr(attr::SwiftIndirectResult, R, SI, false, false) | |||
7607 | { | |||
7608 | } | |||
7609 | ||||
7610 | SwiftIndirectResultAttr *clone(ASTContext &C) const; | |||
7611 | void printPretty(raw_ostream &OS, | |||
7612 | const PrintingPolicy &Policy) const; | |||
7613 | const char *getSpelling() const; | |||
7614 | ||||
7615 | ||||
7616 | static bool classof(const Attr *A) { return A->getKind() == attr::SwiftIndirectResult; } | |||
7617 | }; | |||
7618 | ||||
7619 | class SysVABIAttr : public InheritableAttr { | |||
7620 | public: | |||
7621 | static SysVABIAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7622 | auto *A = new (Ctx) SysVABIAttr(Loc, Ctx, 0); | |||
7623 | A->setImplicit(true); | |||
7624 | return A; | |||
7625 | } | |||
7626 | ||||
7627 | SysVABIAttr(SourceRange R, ASTContext &Ctx | |||
7628 | , unsigned SI | |||
7629 | ) | |||
7630 | : InheritableAttr(attr::SysVABI, R, SI, false, false) | |||
7631 | { | |||
7632 | } | |||
7633 | ||||
7634 | SysVABIAttr *clone(ASTContext &C) const; | |||
7635 | void printPretty(raw_ostream &OS, | |||
7636 | const PrintingPolicy &Policy) const; | |||
7637 | const char *getSpelling() const; | |||
7638 | ||||
7639 | ||||
7640 | static bool classof(const Attr *A) { return A->getKind() == attr::SysVABI; } | |||
7641 | }; | |||
7642 | ||||
7643 | class TLSModelAttr : public InheritableAttr { | |||
7644 | unsigned modelLength; | |||
7645 | char *model; | |||
7646 | ||||
7647 | public: | |||
7648 | static TLSModelAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Model, SourceRange Loc = SourceRange()) { | |||
7649 | auto *A = new (Ctx) TLSModelAttr(Loc, Ctx, Model, 0); | |||
7650 | A->setImplicit(true); | |||
7651 | return A; | |||
7652 | } | |||
7653 | ||||
7654 | TLSModelAttr(SourceRange R, ASTContext &Ctx | |||
7655 | , llvm::StringRef Model | |||
7656 | , unsigned SI | |||
7657 | ) | |||
7658 | : InheritableAttr(attr::TLSModel, R, SI, false, false) | |||
7659 | , modelLength(Model.size()),model(new (Ctx, 1) char[modelLength]) | |||
7660 | { | |||
7661 | if (!Model.empty()) | |||
7662 | std::memcpy(model, Model.data(), modelLength); | |||
7663 | } | |||
7664 | ||||
7665 | TLSModelAttr *clone(ASTContext &C) const; | |||
7666 | void printPretty(raw_ostream &OS, | |||
7667 | const PrintingPolicy &Policy) const; | |||
7668 | const char *getSpelling() const; | |||
7669 | llvm::StringRef getModel() const { | |||
7670 | return llvm::StringRef(model, modelLength); | |||
7671 | } | |||
7672 | unsigned getModelLength() const { | |||
7673 | return modelLength; | |||
7674 | } | |||
7675 | void setModel(ASTContext &C, llvm::StringRef S) { | |||
7676 | modelLength = S.size(); | |||
7677 | this->model = new (C, 1) char [modelLength]; | |||
7678 | if (!S.empty()) | |||
7679 | std::memcpy(this->model, S.data(), modelLength); | |||
7680 | } | |||
7681 | ||||
7682 | ||||
7683 | ||||
7684 | static bool classof(const Attr *A) { return A->getKind() == attr::TLSModel; } | |||
7685 | }; | |||
7686 | ||||
7687 | class TargetAttr : public InheritableAttr { | |||
7688 | unsigned featuresStrLength; | |||
7689 | char *featuresStr; | |||
7690 | ||||
7691 | public: | |||
7692 | static TargetAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef FeaturesStr, SourceRange Loc = SourceRange()) { | |||
7693 | auto *A = new (Ctx) TargetAttr(Loc, Ctx, FeaturesStr, 0); | |||
7694 | A->setImplicit(true); | |||
7695 | return A; | |||
7696 | } | |||
7697 | ||||
7698 | TargetAttr(SourceRange R, ASTContext &Ctx | |||
7699 | , llvm::StringRef FeaturesStr | |||
7700 | , unsigned SI | |||
7701 | ) | |||
7702 | : InheritableAttr(attr::Target, R, SI, false, false) | |||
7703 | , featuresStrLength(FeaturesStr.size()),featuresStr(new (Ctx, 1) char[featuresStrLength]) | |||
7704 | { | |||
7705 | if (!FeaturesStr.empty()) | |||
7706 | std::memcpy(featuresStr, FeaturesStr.data(), featuresStrLength); | |||
7707 | } | |||
7708 | ||||
7709 | TargetAttr *clone(ASTContext &C) const; | |||
7710 | void printPretty(raw_ostream &OS, | |||
7711 | const PrintingPolicy &Policy) const; | |||
7712 | const char *getSpelling() const; | |||
7713 | llvm::StringRef getFeaturesStr() const { | |||
7714 | return llvm::StringRef(featuresStr, featuresStrLength); | |||
7715 | } | |||
7716 | unsigned getFeaturesStrLength() const { | |||
7717 | return featuresStrLength; | |||
7718 | } | |||
7719 | void setFeaturesStr(ASTContext &C, llvm::StringRef S) { | |||
7720 | featuresStrLength = S.size(); | |||
7721 | this->featuresStr = new (C, 1) char [featuresStrLength]; | |||
7722 | if (!S.empty()) | |||
7723 | std::memcpy(this->featuresStr, S.data(), featuresStrLength); | |||
7724 | } | |||
7725 | ||||
7726 | ||||
7727 | struct ParsedTargetAttr { | |||
7728 | std::vector<std::string> Features; | |||
7729 | StringRef Architecture; | |||
7730 | bool DuplicateArchitecture = false; | |||
7731 | bool operator ==(const ParsedTargetAttr &Other) const { | |||
7732 | return DuplicateArchitecture == Other.DuplicateArchitecture && | |||
7733 | Architecture == Other.Architecture && Features == Other.Features; | |||
7734 | } | |||
7735 | }; | |||
7736 | ParsedTargetAttr parse() const { | |||
7737 | return parse(getFeaturesStr()); | |||
7738 | } | |||
7739 | ||||
7740 | template<class Compare> | |||
7741 | ParsedTargetAttr parse(Compare cmp) const { | |||
7742 | ParsedTargetAttr Attrs = parse(); | |||
7743 | llvm::sort(std::begin(Attrs.Features), std::end(Attrs.Features), cmp); | |||
7744 | return Attrs; | |||
7745 | } | |||
7746 | ||||
7747 | bool isDefaultVersion() const { return getFeaturesStr() == "default"; } | |||
7748 | ||||
7749 | static ParsedTargetAttr parse(StringRef Features) { | |||
7750 | ParsedTargetAttr Ret; | |||
7751 | if (Features == "default") return Ret; | |||
7752 | SmallVector<StringRef, 1> AttrFeatures; | |||
7753 | Features.split(AttrFeatures, ","); | |||
7754 | ||||
7755 | // Grab the various features and prepend a "+" to turn on the feature to | |||
7756 | // the backend and add them to our existing set of features. | |||
7757 | for (auto &Feature : AttrFeatures) { | |||
7758 | // Go ahead and trim whitespace rather than either erroring or | |||
7759 | // accepting it weirdly. | |||
7760 | Feature = Feature.trim(); | |||
7761 | ||||
7762 | // We don't support cpu tuning this way currently. | |||
7763 | // TODO: Support the fpmath option. It will require checking | |||
7764 | // overall feature validity for the function with the rest of the | |||
7765 | // attributes on the function. | |||
7766 | if (Feature.startswith("fpmath=") || Feature.startswith("tune=")) | |||
7767 | continue; | |||
7768 | ||||
7769 | // While we're here iterating check for a different target cpu. | |||
7770 | if (Feature.startswith("arch=")) { | |||
7771 | if (!Ret.Architecture.empty()) | |||
7772 | Ret.DuplicateArchitecture = true; | |||
7773 | else | |||
7774 | Ret.Architecture = Feature.split("=").second.trim(); | |||
7775 | } else if (Feature.startswith("no-")) | |||
7776 | Ret.Features.push_back("-" + Feature.split("-").second.str()); | |||
7777 | else | |||
7778 | Ret.Features.push_back("+" + Feature.str()); | |||
7779 | } | |||
7780 | return Ret; | |||
7781 | } | |||
7782 | ||||
7783 | ||||
7784 | static bool classof(const Attr *A) { return A->getKind() == attr::Target; } | |||
7785 | }; | |||
7786 | ||||
7787 | class TestTypestateAttr : public InheritableAttr { | |||
7788 | public: | |||
7789 | enum ConsumedState { | |||
7790 | Consumed, | |||
7791 | Unconsumed | |||
7792 | }; | |||
7793 | private: | |||
7794 | ConsumedState testState; | |||
7795 | ||||
7796 | public: | |||
7797 | static TestTypestateAttr *CreateImplicit(ASTContext &Ctx, ConsumedState TestState, SourceRange Loc = SourceRange()) { | |||
7798 | auto *A = new (Ctx) TestTypestateAttr(Loc, Ctx, TestState, 0); | |||
7799 | A->setImplicit(true); | |||
7800 | return A; | |||
7801 | } | |||
7802 | ||||
7803 | TestTypestateAttr(SourceRange R, ASTContext &Ctx | |||
7804 | , ConsumedState TestState | |||
7805 | , unsigned SI | |||
7806 | ) | |||
7807 | : InheritableAttr(attr::TestTypestate, R, SI, false, false) | |||
7808 | , testState(TestState) | |||
7809 | { | |||
7810 | } | |||
7811 | ||||
7812 | TestTypestateAttr *clone(ASTContext &C) const; | |||
7813 | void printPretty(raw_ostream &OS, | |||
7814 | const PrintingPolicy &Policy) const; | |||
7815 | const char *getSpelling() const; | |||
7816 | ConsumedState getTestState() const { | |||
7817 | return testState; | |||
7818 | } | |||
7819 | ||||
7820 | static bool ConvertStrToConsumedState(StringRef Val, ConsumedState &Out) { | |||
7821 | Optional<ConsumedState> R = llvm::StringSwitch<Optional<ConsumedState>>(Val) | |||
7822 | .Case("consumed", TestTypestateAttr::Consumed) | |||
7823 | .Case("unconsumed", TestTypestateAttr::Unconsumed) | |||
7824 | .Default(Optional<ConsumedState>()); | |||
7825 | if (R) { | |||
7826 | Out = *R; | |||
7827 | return true; | |||
7828 | } | |||
7829 | return false; | |||
7830 | } | |||
7831 | ||||
7832 | static const char *ConvertConsumedStateToStr(ConsumedState Val) { | |||
7833 | switch(Val) { | |||
7834 | case TestTypestateAttr::Consumed: return "consumed"; | |||
7835 | case TestTypestateAttr::Unconsumed: return "unconsumed"; | |||
7836 | } | |||
7837 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 7837); | |||
7838 | } | |||
7839 | ||||
7840 | ||||
7841 | static bool classof(const Attr *A) { return A->getKind() == attr::TestTypestate; } | |||
7842 | }; | |||
7843 | ||||
7844 | class ThisCallAttr : public InheritableAttr { | |||
7845 | public: | |||
7846 | static ThisCallAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7847 | auto *A = new (Ctx) ThisCallAttr(Loc, Ctx, 0); | |||
7848 | A->setImplicit(true); | |||
7849 | return A; | |||
7850 | } | |||
7851 | ||||
7852 | ThisCallAttr(SourceRange R, ASTContext &Ctx | |||
7853 | , unsigned SI | |||
7854 | ) | |||
7855 | : InheritableAttr(attr::ThisCall, R, SI, false, false) | |||
7856 | { | |||
7857 | } | |||
7858 | ||||
7859 | ThisCallAttr *clone(ASTContext &C) const; | |||
7860 | void printPretty(raw_ostream &OS, | |||
7861 | const PrintingPolicy &Policy) const; | |||
7862 | const char *getSpelling() const; | |||
7863 | ||||
7864 | ||||
7865 | static bool classof(const Attr *A) { return A->getKind() == attr::ThisCall; } | |||
7866 | }; | |||
7867 | ||||
7868 | class ThreadAttr : public Attr { | |||
7869 | public: | |||
7870 | static ThreadAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7871 | auto *A = new (Ctx) ThreadAttr(Loc, Ctx, 0); | |||
7872 | A->setImplicit(true); | |||
7873 | return A; | |||
7874 | } | |||
7875 | ||||
7876 | ThreadAttr(SourceRange R, ASTContext &Ctx | |||
7877 | , unsigned SI | |||
7878 | ) | |||
7879 | : Attr(attr::Thread, R, SI, false) | |||
7880 | { | |||
7881 | } | |||
7882 | ||||
7883 | ThreadAttr *clone(ASTContext &C) const; | |||
7884 | void printPretty(raw_ostream &OS, | |||
7885 | const PrintingPolicy &Policy) const; | |||
7886 | const char *getSpelling() const; | |||
7887 | ||||
7888 | ||||
7889 | static bool classof(const Attr *A) { return A->getKind() == attr::Thread; } | |||
7890 | }; | |||
7891 | ||||
7892 | class TransparentUnionAttr : public InheritableAttr { | |||
7893 | public: | |||
7894 | static TransparentUnionAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7895 | auto *A = new (Ctx) TransparentUnionAttr(Loc, Ctx, 0); | |||
7896 | A->setImplicit(true); | |||
7897 | return A; | |||
7898 | } | |||
7899 | ||||
7900 | TransparentUnionAttr(SourceRange R, ASTContext &Ctx | |||
7901 | , unsigned SI | |||
7902 | ) | |||
7903 | : InheritableAttr(attr::TransparentUnion, R, SI, false, false) | |||
7904 | { | |||
7905 | } | |||
7906 | ||||
7907 | TransparentUnionAttr *clone(ASTContext &C) const; | |||
7908 | void printPretty(raw_ostream &OS, | |||
7909 | const PrintingPolicy &Policy) const; | |||
7910 | const char *getSpelling() const; | |||
7911 | ||||
7912 | ||||
7913 | static bool classof(const Attr *A) { return A->getKind() == attr::TransparentUnion; } | |||
7914 | }; | |||
7915 | ||||
7916 | class TrivialABIAttr : public InheritableAttr { | |||
7917 | public: | |||
7918 | static TrivialABIAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
7919 | auto *A = new (Ctx) TrivialABIAttr(Loc, Ctx, 0); | |||
7920 | A->setImplicit(true); | |||
7921 | return A; | |||
7922 | } | |||
7923 | ||||
7924 | TrivialABIAttr(SourceRange R, ASTContext &Ctx | |||
7925 | , unsigned SI | |||
7926 | ) | |||
7927 | : InheritableAttr(attr::TrivialABI, R, SI, false, false) | |||
7928 | { | |||
7929 | } | |||
7930 | ||||
7931 | TrivialABIAttr *clone(ASTContext &C) const; | |||
7932 | void printPretty(raw_ostream &OS, | |||
7933 | const PrintingPolicy &Policy) const; | |||
7934 | const char *getSpelling() const; | |||
7935 | ||||
7936 | ||||
7937 | static bool classof(const Attr *A) { return A->getKind() == attr::TrivialABI; } | |||
7938 | }; | |||
7939 | ||||
7940 | class TryAcquireCapabilityAttr : public InheritableAttr { | |||
7941 | Expr * successValue; | |||
7942 | ||||
7943 | unsigned args_Size; | |||
7944 | Expr * *args_; | |||
7945 | ||||
7946 | public: | |||
7947 | enum Spelling { | |||
7948 | GNU_try_acquire_capability = 0, | |||
7949 | CXX11_clang_try_acquire_capability = 1, | |||
7950 | GNU_try_acquire_shared_capability = 2, | |||
7951 | CXX11_clang_try_acquire_shared_capability = 3 | |||
7952 | }; | |||
7953 | ||||
7954 | static TryAcquireCapabilityAttr *CreateImplicit(ASTContext &Ctx, Spelling S, Expr * SuccessValue, Expr * *Args, unsigned ArgsSize, SourceRange Loc = SourceRange()) { | |||
7955 | auto *A = new (Ctx) TryAcquireCapabilityAttr(Loc, Ctx, SuccessValue, Args, ArgsSize, S); | |||
7956 | A->setImplicit(true); | |||
7957 | return A; | |||
7958 | } | |||
7959 | ||||
7960 | TryAcquireCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
7961 | , Expr * SuccessValue | |||
7962 | , Expr * *Args, unsigned ArgsSize | |||
7963 | , unsigned SI | |||
7964 | ) | |||
7965 | : InheritableAttr(attr::TryAcquireCapability, R, SI, true, true) | |||
7966 | , successValue(SuccessValue) | |||
7967 | , args_Size(ArgsSize), args_(new (Ctx, 16) Expr *[args_Size]) | |||
7968 | { | |||
7969 | std::copy(Args, Args + args_Size, args_); | |||
7970 | } | |||
7971 | ||||
7972 | TryAcquireCapabilityAttr(SourceRange R, ASTContext &Ctx | |||
7973 | , Expr * SuccessValue | |||
7974 | , unsigned SI | |||
7975 | ) | |||
7976 | : InheritableAttr(attr::TryAcquireCapability, R, SI, true, true) | |||
7977 | , successValue(SuccessValue) | |||
7978 | , args_Size(0), args_(nullptr) | |||
7979 | { | |||
7980 | } | |||
7981 | ||||
7982 | TryAcquireCapabilityAttr *clone(ASTContext &C) const; | |||
7983 | void printPretty(raw_ostream &OS, | |||
7984 | const PrintingPolicy &Policy) const; | |||
7985 | const char *getSpelling() const; | |||
7986 | Spelling getSemanticSpelling() const { | |||
7987 | switch (SpellingListIndex) { | |||
7988 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 7988); | |||
7989 | case 0: return GNU_try_acquire_capability; | |||
7990 | case 1: return CXX11_clang_try_acquire_capability; | |||
7991 | case 2: return GNU_try_acquire_shared_capability; | |||
7992 | case 3: return CXX11_clang_try_acquire_shared_capability; | |||
7993 | } | |||
7994 | } | |||
7995 | bool isShared() const { return SpellingListIndex == 2 || | |||
7996 | SpellingListIndex == 3; } | |||
7997 | Expr * getSuccessValue() const { | |||
7998 | return successValue; | |||
7999 | } | |||
8000 | ||||
8001 | typedef Expr ** args_iterator; | |||
8002 | args_iterator args_begin() const { return args_; } | |||
8003 | args_iterator args_end() const { return args_ + args_Size; } | |||
8004 | unsigned args_size() const { return args_Size; } | |||
8005 | llvm::iterator_range<args_iterator> args() const { return llvm::make_range(args_begin(), args_end()); } | |||
8006 | ||||
8007 | ||||
8008 | ||||
8009 | ||||
8010 | static bool classof(const Attr *A) { return A->getKind() == attr::TryAcquireCapability; } | |||
8011 | }; | |||
8012 | ||||
8013 | class TypeTagForDatatypeAttr : public InheritableAttr { | |||
8014 | IdentifierInfo * argumentKind; | |||
8015 | ||||
8016 | TypeSourceInfo * matchingCType; | |||
8017 | ||||
8018 | bool layoutCompatible; | |||
8019 | ||||
8020 | bool mustBeNull; | |||
8021 | ||||
8022 | public: | |||
8023 | static TypeTagForDatatypeAttr *CreateImplicit(ASTContext &Ctx, IdentifierInfo * ArgumentKind, TypeSourceInfo * MatchingCType, bool LayoutCompatible, bool MustBeNull, SourceRange Loc = SourceRange()) { | |||
8024 | auto *A = new (Ctx) TypeTagForDatatypeAttr(Loc, Ctx, ArgumentKind, MatchingCType, LayoutCompatible, MustBeNull, 0); | |||
8025 | A->setImplicit(true); | |||
8026 | return A; | |||
8027 | } | |||
8028 | ||||
8029 | TypeTagForDatatypeAttr(SourceRange R, ASTContext &Ctx | |||
8030 | , IdentifierInfo * ArgumentKind | |||
8031 | , TypeSourceInfo * MatchingCType | |||
8032 | , bool LayoutCompatible | |||
8033 | , bool MustBeNull | |||
8034 | , unsigned SI | |||
8035 | ) | |||
8036 | : InheritableAttr(attr::TypeTagForDatatype, R, SI, false, false) | |||
8037 | , argumentKind(ArgumentKind) | |||
8038 | , matchingCType(MatchingCType) | |||
8039 | , layoutCompatible(LayoutCompatible) | |||
8040 | , mustBeNull(MustBeNull) | |||
8041 | { | |||
8042 | } | |||
8043 | ||||
8044 | TypeTagForDatatypeAttr *clone(ASTContext &C) const; | |||
8045 | void printPretty(raw_ostream &OS, | |||
8046 | const PrintingPolicy &Policy) const; | |||
8047 | const char *getSpelling() const; | |||
8048 | IdentifierInfo * getArgumentKind() const { | |||
8049 | return argumentKind; | |||
8050 | } | |||
8051 | ||||
8052 | QualType getMatchingCType() const { | |||
8053 | return matchingCType->getType(); | |||
8054 | } TypeSourceInfo * getMatchingCTypeLoc() const { | |||
8055 | return matchingCType; | |||
8056 | } | |||
8057 | ||||
8058 | bool getLayoutCompatible() const { | |||
8059 | return layoutCompatible; | |||
8060 | } | |||
8061 | ||||
8062 | bool getMustBeNull() const { | |||
8063 | return mustBeNull; | |||
8064 | } | |||
8065 | ||||
8066 | ||||
8067 | ||||
8068 | static bool classof(const Attr *A) { return A->getKind() == attr::TypeTagForDatatype; } | |||
8069 | }; | |||
8070 | ||||
8071 | class TypeVisibilityAttr : public InheritableAttr { | |||
8072 | public: | |||
8073 | enum VisibilityType { | |||
8074 | Default, | |||
8075 | Hidden, | |||
8076 | Protected | |||
8077 | }; | |||
8078 | private: | |||
8079 | VisibilityType visibility; | |||
8080 | ||||
8081 | public: | |||
8082 | static TypeVisibilityAttr *CreateImplicit(ASTContext &Ctx, VisibilityType Visibility, SourceRange Loc = SourceRange()) { | |||
8083 | auto *A = new (Ctx) TypeVisibilityAttr(Loc, Ctx, Visibility, 0); | |||
8084 | A->setImplicit(true); | |||
8085 | return A; | |||
8086 | } | |||
8087 | ||||
8088 | TypeVisibilityAttr(SourceRange R, ASTContext &Ctx | |||
8089 | , VisibilityType Visibility | |||
8090 | , unsigned SI | |||
8091 | ) | |||
8092 | : InheritableAttr(attr::TypeVisibility, R, SI, false, false) | |||
8093 | , visibility(Visibility) | |||
8094 | { | |||
8095 | } | |||
8096 | ||||
8097 | TypeVisibilityAttr *clone(ASTContext &C) const; | |||
8098 | void printPretty(raw_ostream &OS, | |||
8099 | const PrintingPolicy &Policy) const; | |||
8100 | const char *getSpelling() const; | |||
8101 | VisibilityType getVisibility() const { | |||
8102 | return visibility; | |||
8103 | } | |||
8104 | ||||
8105 | static bool ConvertStrToVisibilityType(StringRef Val, VisibilityType &Out) { | |||
8106 | Optional<VisibilityType> R = llvm::StringSwitch<Optional<VisibilityType>>(Val) | |||
8107 | .Case("default", TypeVisibilityAttr::Default) | |||
8108 | .Case("hidden", TypeVisibilityAttr::Hidden) | |||
8109 | .Case("internal", TypeVisibilityAttr::Hidden) | |||
8110 | .Case("protected", TypeVisibilityAttr::Protected) | |||
8111 | .Default(Optional<VisibilityType>()); | |||
8112 | if (R) { | |||
8113 | Out = *R; | |||
8114 | return true; | |||
8115 | } | |||
8116 | return false; | |||
8117 | } | |||
8118 | ||||
8119 | static const char *ConvertVisibilityTypeToStr(VisibilityType Val) { | |||
8120 | switch(Val) { | |||
8121 | case TypeVisibilityAttr::Default: return "default"; | |||
8122 | case TypeVisibilityAttr::Hidden: return "hidden"; | |||
8123 | case TypeVisibilityAttr::Protected: return "protected"; | |||
8124 | } | |||
8125 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 8125); | |||
8126 | } | |||
8127 | ||||
8128 | ||||
8129 | static bool classof(const Attr *A) { return A->getKind() == attr::TypeVisibility; } | |||
8130 | }; | |||
8131 | ||||
8132 | class UnavailableAttr : public InheritableAttr { | |||
8133 | unsigned messageLength; | |||
8134 | char *message; | |||
8135 | ||||
8136 | public: | |||
8137 | enum ImplicitReason { | |||
8138 | IR_None, | |||
8139 | IR_ARCForbiddenType, | |||
8140 | IR_ForbiddenWeak, | |||
8141 | IR_ARCForbiddenConversion, | |||
8142 | IR_ARCInitReturnsUnrelated, | |||
8143 | IR_ARCFieldWithOwnership | |||
8144 | }; | |||
8145 | private: | |||
8146 | ImplicitReason implicitReason; | |||
8147 | ||||
8148 | public: | |||
8149 | static UnavailableAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Message, ImplicitReason ImplicitReason, SourceRange Loc = SourceRange()) { | |||
8150 | auto *A = new (Ctx) UnavailableAttr(Loc, Ctx, Message, ImplicitReason, 0); | |||
8151 | A->setImplicit(true); | |||
8152 | return A; | |||
8153 | } | |||
8154 | ||||
8155 | static UnavailableAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Message, SourceRange Loc = SourceRange()) { | |||
8156 | auto *A = new (Ctx) UnavailableAttr(Loc, Ctx, Message, 0); | |||
8157 | A->setImplicit(true); | |||
8158 | return A; | |||
8159 | } | |||
8160 | ||||
8161 | UnavailableAttr(SourceRange R, ASTContext &Ctx | |||
8162 | , llvm::StringRef Message | |||
8163 | , ImplicitReason ImplicitReason | |||
8164 | , unsigned SI | |||
8165 | ) | |||
8166 | : InheritableAttr(attr::Unavailable, R, SI, false, false) | |||
8167 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
8168 | , implicitReason(ImplicitReason) | |||
8169 | { | |||
8170 | if (!Message.empty()) | |||
8171 | std::memcpy(message, Message.data(), messageLength); | |||
8172 | } | |||
8173 | ||||
8174 | UnavailableAttr(SourceRange R, ASTContext &Ctx | |||
8175 | , llvm::StringRef Message | |||
8176 | , unsigned SI | |||
8177 | ) | |||
8178 | : InheritableAttr(attr::Unavailable, R, SI, false, false) | |||
8179 | , messageLength(Message.size()),message(new (Ctx, 1) char[messageLength]) | |||
8180 | , implicitReason(ImplicitReason(0)) | |||
8181 | { | |||
8182 | if (!Message.empty()) | |||
8183 | std::memcpy(message, Message.data(), messageLength); | |||
8184 | } | |||
8185 | ||||
8186 | UnavailableAttr(SourceRange R, ASTContext &Ctx | |||
8187 | , unsigned SI | |||
8188 | ) | |||
8189 | : InheritableAttr(attr::Unavailable, R, SI, false, false) | |||
8190 | , messageLength(0),message(nullptr) | |||
8191 | , implicitReason(ImplicitReason(0)) | |||
8192 | { | |||
8193 | } | |||
8194 | ||||
8195 | UnavailableAttr *clone(ASTContext &C) const; | |||
8196 | void printPretty(raw_ostream &OS, | |||
8197 | const PrintingPolicy &Policy) const; | |||
8198 | const char *getSpelling() const; | |||
8199 | llvm::StringRef getMessage() const { | |||
8200 | return llvm::StringRef(message, messageLength); | |||
8201 | } | |||
8202 | unsigned getMessageLength() const { | |||
8203 | return messageLength; | |||
8204 | } | |||
8205 | void setMessage(ASTContext &C, llvm::StringRef S) { | |||
8206 | messageLength = S.size(); | |||
8207 | this->message = new (C, 1) char [messageLength]; | |||
8208 | if (!S.empty()) | |||
8209 | std::memcpy(this->message, S.data(), messageLength); | |||
8210 | } | |||
8211 | ||||
8212 | ImplicitReason getImplicitReason() const { | |||
8213 | return implicitReason; | |||
8214 | } | |||
8215 | ||||
8216 | ||||
8217 | ||||
8218 | static bool classof(const Attr *A) { return A->getKind() == attr::Unavailable; } | |||
8219 | }; | |||
8220 | ||||
8221 | class UnusedAttr : public InheritableAttr { | |||
8222 | public: | |||
8223 | enum Spelling { | |||
8224 | CXX11_maybe_unused = 0, | |||
8225 | GNU_unused = 1, | |||
8226 | CXX11_gnu_unused = 2, | |||
8227 | C2x_maybe_unused = 3 | |||
8228 | }; | |||
8229 | ||||
8230 | static UnusedAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
8231 | auto *A = new (Ctx) UnusedAttr(Loc, Ctx, S); | |||
8232 | A->setImplicit(true); | |||
8233 | return A; | |||
8234 | } | |||
8235 | ||||
8236 | UnusedAttr(SourceRange R, ASTContext &Ctx | |||
8237 | , unsigned SI | |||
8238 | ) | |||
8239 | : InheritableAttr(attr::Unused, R, SI, false, false) | |||
8240 | { | |||
8241 | } | |||
8242 | ||||
8243 | UnusedAttr *clone(ASTContext &C) const; | |||
8244 | void printPretty(raw_ostream &OS, | |||
8245 | const PrintingPolicy &Policy) const; | |||
8246 | const char *getSpelling() const; | |||
8247 | Spelling getSemanticSpelling() const { | |||
8248 | switch (SpellingListIndex) { | |||
8249 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 8249); | |||
8250 | case 0: return CXX11_maybe_unused; | |||
8251 | case 1: return GNU_unused; | |||
8252 | case 2: return CXX11_gnu_unused; | |||
8253 | case 3: return C2x_maybe_unused; | |||
8254 | } | |||
8255 | } | |||
8256 | ||||
8257 | ||||
8258 | static bool classof(const Attr *A) { return A->getKind() == attr::Unused; } | |||
8259 | }; | |||
8260 | ||||
8261 | class UsedAttr : public InheritableAttr { | |||
8262 | public: | |||
8263 | static UsedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8264 | auto *A = new (Ctx) UsedAttr(Loc, Ctx, 0); | |||
8265 | A->setImplicit(true); | |||
8266 | return A; | |||
8267 | } | |||
8268 | ||||
8269 | UsedAttr(SourceRange R, ASTContext &Ctx | |||
8270 | , unsigned SI | |||
8271 | ) | |||
8272 | : InheritableAttr(attr::Used, R, SI, false, false) | |||
8273 | { | |||
8274 | } | |||
8275 | ||||
8276 | UsedAttr *clone(ASTContext &C) const; | |||
8277 | void printPretty(raw_ostream &OS, | |||
8278 | const PrintingPolicy &Policy) const; | |||
8279 | const char *getSpelling() const; | |||
8280 | ||||
8281 | ||||
8282 | static bool classof(const Attr *A) { return A->getKind() == attr::Used; } | |||
8283 | }; | |||
8284 | ||||
8285 | class UuidAttr : public InheritableAttr { | |||
8286 | unsigned guidLength; | |||
8287 | char *guid; | |||
8288 | ||||
8289 | public: | |||
8290 | static UuidAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Guid, SourceRange Loc = SourceRange()) { | |||
8291 | auto *A = new (Ctx) UuidAttr(Loc, Ctx, Guid, 0); | |||
8292 | A->setImplicit(true); | |||
8293 | return A; | |||
8294 | } | |||
8295 | ||||
8296 | UuidAttr(SourceRange R, ASTContext &Ctx | |||
8297 | , llvm::StringRef Guid | |||
8298 | , unsigned SI | |||
8299 | ) | |||
8300 | : InheritableAttr(attr::Uuid, R, SI, false, false) | |||
8301 | , guidLength(Guid.size()),guid(new (Ctx, 1) char[guidLength]) | |||
8302 | { | |||
8303 | if (!Guid.empty()) | |||
8304 | std::memcpy(guid, Guid.data(), guidLength); | |||
8305 | } | |||
8306 | ||||
8307 | UuidAttr *clone(ASTContext &C) const; | |||
8308 | void printPretty(raw_ostream &OS, | |||
8309 | const PrintingPolicy &Policy) const; | |||
8310 | const char *getSpelling() const; | |||
8311 | llvm::StringRef getGuid() const { | |||
8312 | return llvm::StringRef(guid, guidLength); | |||
8313 | } | |||
8314 | unsigned getGuidLength() const { | |||
8315 | return guidLength; | |||
8316 | } | |||
8317 | void setGuid(ASTContext &C, llvm::StringRef S) { | |||
8318 | guidLength = S.size(); | |||
8319 | this->guid = new (C, 1) char [guidLength]; | |||
8320 | if (!S.empty()) | |||
8321 | std::memcpy(this->guid, S.data(), guidLength); | |||
8322 | } | |||
8323 | ||||
8324 | ||||
8325 | ||||
8326 | static bool classof(const Attr *A) { return A->getKind() == attr::Uuid; } | |||
8327 | }; | |||
8328 | ||||
8329 | class VecReturnAttr : public InheritableAttr { | |||
8330 | public: | |||
8331 | static VecReturnAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8332 | auto *A = new (Ctx) VecReturnAttr(Loc, Ctx, 0); | |||
8333 | A->setImplicit(true); | |||
8334 | return A; | |||
8335 | } | |||
8336 | ||||
8337 | VecReturnAttr(SourceRange R, ASTContext &Ctx | |||
8338 | , unsigned SI | |||
8339 | ) | |||
8340 | : InheritableAttr(attr::VecReturn, R, SI, false, false) | |||
8341 | { | |||
8342 | } | |||
8343 | ||||
8344 | VecReturnAttr *clone(ASTContext &C) const; | |||
8345 | void printPretty(raw_ostream &OS, | |||
8346 | const PrintingPolicy &Policy) const; | |||
8347 | const char *getSpelling() const; | |||
8348 | ||||
8349 | ||||
8350 | static bool classof(const Attr *A) { return A->getKind() == attr::VecReturn; } | |||
8351 | }; | |||
8352 | ||||
8353 | class VecTypeHintAttr : public InheritableAttr { | |||
8354 | TypeSourceInfo * typeHint; | |||
8355 | ||||
8356 | public: | |||
8357 | static VecTypeHintAttr *CreateImplicit(ASTContext &Ctx, TypeSourceInfo * TypeHint, SourceRange Loc = SourceRange()) { | |||
8358 | auto *A = new (Ctx) VecTypeHintAttr(Loc, Ctx, TypeHint, 0); | |||
8359 | A->setImplicit(true); | |||
8360 | return A; | |||
8361 | } | |||
8362 | ||||
8363 | VecTypeHintAttr(SourceRange R, ASTContext &Ctx | |||
8364 | , TypeSourceInfo * TypeHint | |||
8365 | , unsigned SI | |||
8366 | ) | |||
8367 | : InheritableAttr(attr::VecTypeHint, R, SI, false, false) | |||
8368 | , typeHint(TypeHint) | |||
8369 | { | |||
8370 | } | |||
8371 | ||||
8372 | VecTypeHintAttr *clone(ASTContext &C) const; | |||
8373 | void printPretty(raw_ostream &OS, | |||
8374 | const PrintingPolicy &Policy) const; | |||
8375 | const char *getSpelling() const; | |||
8376 | QualType getTypeHint() const { | |||
8377 | return typeHint->getType(); | |||
8378 | } TypeSourceInfo * getTypeHintLoc() const { | |||
8379 | return typeHint; | |||
8380 | } | |||
8381 | ||||
8382 | ||||
8383 | ||||
8384 | static bool classof(const Attr *A) { return A->getKind() == attr::VecTypeHint; } | |||
8385 | }; | |||
8386 | ||||
8387 | class VectorCallAttr : public InheritableAttr { | |||
8388 | public: | |||
8389 | static VectorCallAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8390 | auto *A = new (Ctx) VectorCallAttr(Loc, Ctx, 0); | |||
8391 | A->setImplicit(true); | |||
8392 | return A; | |||
8393 | } | |||
8394 | ||||
8395 | VectorCallAttr(SourceRange R, ASTContext &Ctx | |||
8396 | , unsigned SI | |||
8397 | ) | |||
8398 | : InheritableAttr(attr::VectorCall, R, SI, false, false) | |||
8399 | { | |||
8400 | } | |||
8401 | ||||
8402 | VectorCallAttr *clone(ASTContext &C) const; | |||
8403 | void printPretty(raw_ostream &OS, | |||
8404 | const PrintingPolicy &Policy) const; | |||
8405 | const char *getSpelling() const; | |||
8406 | ||||
8407 | ||||
8408 | static bool classof(const Attr *A) { return A->getKind() == attr::VectorCall; } | |||
8409 | }; | |||
8410 | ||||
8411 | class VisibilityAttr : public InheritableAttr { | |||
8412 | public: | |||
8413 | enum VisibilityType { | |||
8414 | Default, | |||
8415 | Hidden, | |||
8416 | Protected | |||
8417 | }; | |||
8418 | private: | |||
8419 | VisibilityType visibility; | |||
8420 | ||||
8421 | public: | |||
8422 | static VisibilityAttr *CreateImplicit(ASTContext &Ctx, VisibilityType Visibility, SourceRange Loc = SourceRange()) { | |||
8423 | auto *A = new (Ctx) VisibilityAttr(Loc, Ctx, Visibility, 0); | |||
8424 | A->setImplicit(true); | |||
| ||||
8425 | return A; | |||
8426 | } | |||
8427 | ||||
8428 | VisibilityAttr(SourceRange R, ASTContext &Ctx | |||
8429 | , VisibilityType Visibility | |||
8430 | , unsigned SI | |||
8431 | ) | |||
8432 | : InheritableAttr(attr::Visibility, R, SI, false, false) | |||
8433 | , visibility(Visibility) | |||
8434 | { | |||
8435 | } | |||
8436 | ||||
8437 | VisibilityAttr *clone(ASTContext &C) const; | |||
8438 | void printPretty(raw_ostream &OS, | |||
8439 | const PrintingPolicy &Policy) const; | |||
8440 | const char *getSpelling() const; | |||
8441 | VisibilityType getVisibility() const { | |||
8442 | return visibility; | |||
8443 | } | |||
8444 | ||||
8445 | static bool ConvertStrToVisibilityType(StringRef Val, VisibilityType &Out) { | |||
8446 | Optional<VisibilityType> R = llvm::StringSwitch<Optional<VisibilityType>>(Val) | |||
8447 | .Case("default", VisibilityAttr::Default) | |||
8448 | .Case("hidden", VisibilityAttr::Hidden) | |||
8449 | .Case("internal", VisibilityAttr::Hidden) | |||
8450 | .Case("protected", VisibilityAttr::Protected) | |||
8451 | .Default(Optional<VisibilityType>()); | |||
8452 | if (R) { | |||
8453 | Out = *R; | |||
8454 | return true; | |||
8455 | } | |||
8456 | return false; | |||
8457 | } | |||
8458 | ||||
8459 | static const char *ConvertVisibilityTypeToStr(VisibilityType Val) { | |||
8460 | switch(Val) { | |||
8461 | case VisibilityAttr::Default: return "default"; | |||
8462 | case VisibilityAttr::Hidden: return "hidden"; | |||
8463 | case VisibilityAttr::Protected: return "protected"; | |||
8464 | } | |||
8465 | llvm_unreachable("No enumerator with that value")::llvm::llvm_unreachable_internal("No enumerator with that value" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 8465); | |||
8466 | } | |||
8467 | ||||
8468 | ||||
8469 | static bool classof(const Attr *A) { return A->getKind() == attr::Visibility; } | |||
8470 | }; | |||
8471 | ||||
8472 | class WarnUnusedAttr : public InheritableAttr { | |||
8473 | public: | |||
8474 | static WarnUnusedAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8475 | auto *A = new (Ctx) WarnUnusedAttr(Loc, Ctx, 0); | |||
8476 | A->setImplicit(true); | |||
8477 | return A; | |||
8478 | } | |||
8479 | ||||
8480 | WarnUnusedAttr(SourceRange R, ASTContext &Ctx | |||
8481 | , unsigned SI | |||
8482 | ) | |||
8483 | : InheritableAttr(attr::WarnUnused, R, SI, false, false) | |||
8484 | { | |||
8485 | } | |||
8486 | ||||
8487 | WarnUnusedAttr *clone(ASTContext &C) const; | |||
8488 | void printPretty(raw_ostream &OS, | |||
8489 | const PrintingPolicy &Policy) const; | |||
8490 | const char *getSpelling() const; | |||
8491 | ||||
8492 | ||||
8493 | static bool classof(const Attr *A) { return A->getKind() == attr::WarnUnused; } | |||
8494 | }; | |||
8495 | ||||
8496 | class WarnUnusedResultAttr : public InheritableAttr { | |||
8497 | public: | |||
8498 | enum Spelling { | |||
8499 | CXX11_nodiscard = 0, | |||
8500 | C2x_nodiscard = 1, | |||
8501 | CXX11_clang_warn_unused_result = 2, | |||
8502 | GNU_warn_unused_result = 3, | |||
8503 | CXX11_gnu_warn_unused_result = 4 | |||
8504 | }; | |||
8505 | ||||
8506 | static WarnUnusedResultAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
8507 | auto *A = new (Ctx) WarnUnusedResultAttr(Loc, Ctx, S); | |||
8508 | A->setImplicit(true); | |||
8509 | return A; | |||
8510 | } | |||
8511 | ||||
8512 | WarnUnusedResultAttr(SourceRange R, ASTContext &Ctx | |||
8513 | , unsigned SI | |||
8514 | ) | |||
8515 | : InheritableAttr(attr::WarnUnusedResult, R, SI, false, false) | |||
8516 | { | |||
8517 | } | |||
8518 | ||||
8519 | WarnUnusedResultAttr *clone(ASTContext &C) const; | |||
8520 | void printPretty(raw_ostream &OS, | |||
8521 | const PrintingPolicy &Policy) const; | |||
8522 | const char *getSpelling() const; | |||
8523 | Spelling getSemanticSpelling() const { | |||
8524 | switch (SpellingListIndex) { | |||
8525 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 8525); | |||
8526 | case 0: return CXX11_nodiscard; | |||
8527 | case 1: return C2x_nodiscard; | |||
8528 | case 2: return CXX11_clang_warn_unused_result; | |||
8529 | case 3: return GNU_warn_unused_result; | |||
8530 | case 4: return CXX11_gnu_warn_unused_result; | |||
8531 | } | |||
8532 | } | |||
8533 | ||||
8534 | ||||
8535 | static bool classof(const Attr *A) { return A->getKind() == attr::WarnUnusedResult; } | |||
8536 | }; | |||
8537 | ||||
8538 | class WeakAttr : public InheritableAttr { | |||
8539 | public: | |||
8540 | static WeakAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8541 | auto *A = new (Ctx) WeakAttr(Loc, Ctx, 0); | |||
8542 | A->setImplicit(true); | |||
8543 | return A; | |||
8544 | } | |||
8545 | ||||
8546 | WeakAttr(SourceRange R, ASTContext &Ctx | |||
8547 | , unsigned SI | |||
8548 | ) | |||
8549 | : InheritableAttr(attr::Weak, R, SI, false, false) | |||
8550 | { | |||
8551 | } | |||
8552 | ||||
8553 | WeakAttr *clone(ASTContext &C) const; | |||
8554 | void printPretty(raw_ostream &OS, | |||
8555 | const PrintingPolicy &Policy) const; | |||
8556 | const char *getSpelling() const; | |||
8557 | ||||
8558 | ||||
8559 | static bool classof(const Attr *A) { return A->getKind() == attr::Weak; } | |||
8560 | }; | |||
8561 | ||||
8562 | class WeakImportAttr : public InheritableAttr { | |||
8563 | public: | |||
8564 | static WeakImportAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8565 | auto *A = new (Ctx) WeakImportAttr(Loc, Ctx, 0); | |||
8566 | A->setImplicit(true); | |||
8567 | return A; | |||
8568 | } | |||
8569 | ||||
8570 | WeakImportAttr(SourceRange R, ASTContext &Ctx | |||
8571 | , unsigned SI | |||
8572 | ) | |||
8573 | : InheritableAttr(attr::WeakImport, R, SI, false, false) | |||
8574 | { | |||
8575 | } | |||
8576 | ||||
8577 | WeakImportAttr *clone(ASTContext &C) const; | |||
8578 | void printPretty(raw_ostream &OS, | |||
8579 | const PrintingPolicy &Policy) const; | |||
8580 | const char *getSpelling() const; | |||
8581 | ||||
8582 | ||||
8583 | static bool classof(const Attr *A) { return A->getKind() == attr::WeakImport; } | |||
8584 | }; | |||
8585 | ||||
8586 | class WeakRefAttr : public InheritableAttr { | |||
8587 | unsigned aliaseeLength; | |||
8588 | char *aliasee; | |||
8589 | ||||
8590 | public: | |||
8591 | static WeakRefAttr *CreateImplicit(ASTContext &Ctx, llvm::StringRef Aliasee, SourceRange Loc = SourceRange()) { | |||
8592 | auto *A = new (Ctx) WeakRefAttr(Loc, Ctx, Aliasee, 0); | |||
8593 | A->setImplicit(true); | |||
8594 | return A; | |||
8595 | } | |||
8596 | ||||
8597 | WeakRefAttr(SourceRange R, ASTContext &Ctx | |||
8598 | , llvm::StringRef Aliasee | |||
8599 | , unsigned SI | |||
8600 | ) | |||
8601 | : InheritableAttr(attr::WeakRef, R, SI, false, false) | |||
8602 | , aliaseeLength(Aliasee.size()),aliasee(new (Ctx, 1) char[aliaseeLength]) | |||
8603 | { | |||
8604 | if (!Aliasee.empty()) | |||
8605 | std::memcpy(aliasee, Aliasee.data(), aliaseeLength); | |||
8606 | } | |||
8607 | ||||
8608 | WeakRefAttr(SourceRange R, ASTContext &Ctx | |||
8609 | , unsigned SI | |||
8610 | ) | |||
8611 | : InheritableAttr(attr::WeakRef, R, SI, false, false) | |||
8612 | , aliaseeLength(0),aliasee(nullptr) | |||
8613 | { | |||
8614 | } | |||
8615 | ||||
8616 | WeakRefAttr *clone(ASTContext &C) const; | |||
8617 | void printPretty(raw_ostream &OS, | |||
8618 | const PrintingPolicy &Policy) const; | |||
8619 | const char *getSpelling() const; | |||
8620 | llvm::StringRef getAliasee() const { | |||
8621 | return llvm::StringRef(aliasee, aliaseeLength); | |||
8622 | } | |||
8623 | unsigned getAliaseeLength() const { | |||
8624 | return aliaseeLength; | |||
8625 | } | |||
8626 | void setAliasee(ASTContext &C, llvm::StringRef S) { | |||
8627 | aliaseeLength = S.size(); | |||
8628 | this->aliasee = new (C, 1) char [aliaseeLength]; | |||
8629 | if (!S.empty()) | |||
8630 | std::memcpy(this->aliasee, S.data(), aliaseeLength); | |||
8631 | } | |||
8632 | ||||
8633 | ||||
8634 | ||||
8635 | static bool classof(const Attr *A) { return A->getKind() == attr::WeakRef; } | |||
8636 | }; | |||
8637 | ||||
8638 | class WorkGroupSizeHintAttr : public InheritableAttr { | |||
8639 | unsigned xDim; | |||
8640 | ||||
8641 | unsigned yDim; | |||
8642 | ||||
8643 | unsigned zDim; | |||
8644 | ||||
8645 | public: | |||
8646 | static WorkGroupSizeHintAttr *CreateImplicit(ASTContext &Ctx, unsigned XDim, unsigned YDim, unsigned ZDim, SourceRange Loc = SourceRange()) { | |||
8647 | auto *A = new (Ctx) WorkGroupSizeHintAttr(Loc, Ctx, XDim, YDim, ZDim, 0); | |||
8648 | A->setImplicit(true); | |||
8649 | return A; | |||
8650 | } | |||
8651 | ||||
8652 | WorkGroupSizeHintAttr(SourceRange R, ASTContext &Ctx | |||
8653 | , unsigned XDim | |||
8654 | , unsigned YDim | |||
8655 | , unsigned ZDim | |||
8656 | , unsigned SI | |||
8657 | ) | |||
8658 | : InheritableAttr(attr::WorkGroupSizeHint, R, SI, false, false) | |||
8659 | , xDim(XDim) | |||
8660 | , yDim(YDim) | |||
8661 | , zDim(ZDim) | |||
8662 | { | |||
8663 | } | |||
8664 | ||||
8665 | WorkGroupSizeHintAttr *clone(ASTContext &C) const; | |||
8666 | void printPretty(raw_ostream &OS, | |||
8667 | const PrintingPolicy &Policy) const; | |||
8668 | const char *getSpelling() const; | |||
8669 | unsigned getXDim() const { | |||
8670 | return xDim; | |||
8671 | } | |||
8672 | ||||
8673 | unsigned getYDim() const { | |||
8674 | return yDim; | |||
8675 | } | |||
8676 | ||||
8677 | unsigned getZDim() const { | |||
8678 | return zDim; | |||
8679 | } | |||
8680 | ||||
8681 | ||||
8682 | ||||
8683 | static bool classof(const Attr *A) { return A->getKind() == attr::WorkGroupSizeHint; } | |||
8684 | }; | |||
8685 | ||||
8686 | class X86ForceAlignArgPointerAttr : public InheritableAttr { | |||
8687 | public: | |||
8688 | static X86ForceAlignArgPointerAttr *CreateImplicit(ASTContext &Ctx, SourceRange Loc = SourceRange()) { | |||
8689 | auto *A = new (Ctx) X86ForceAlignArgPointerAttr(Loc, Ctx, 0); | |||
8690 | A->setImplicit(true); | |||
8691 | return A; | |||
8692 | } | |||
8693 | ||||
8694 | X86ForceAlignArgPointerAttr(SourceRange R, ASTContext &Ctx | |||
8695 | , unsigned SI | |||
8696 | ) | |||
8697 | : InheritableAttr(attr::X86ForceAlignArgPointer, R, SI, false, false) | |||
8698 | { | |||
8699 | } | |||
8700 | ||||
8701 | X86ForceAlignArgPointerAttr *clone(ASTContext &C) const; | |||
8702 | void printPretty(raw_ostream &OS, | |||
8703 | const PrintingPolicy &Policy) const; | |||
8704 | const char *getSpelling() const; | |||
8705 | ||||
8706 | ||||
8707 | static bool classof(const Attr *A) { return A->getKind() == attr::X86ForceAlignArgPointer; } | |||
8708 | }; | |||
8709 | ||||
8710 | class XRayInstrumentAttr : public InheritableAttr { | |||
8711 | public: | |||
8712 | enum Spelling { | |||
8713 | GNU_xray_always_instrument = 0, | |||
8714 | CXX11_clang_xray_always_instrument = 1, | |||
8715 | C2x_clang_xray_always_instrument = 2, | |||
8716 | GNU_xray_never_instrument = 3, | |||
8717 | CXX11_clang_xray_never_instrument = 4, | |||
8718 | C2x_clang_xray_never_instrument = 5 | |||
8719 | }; | |||
8720 | ||||
8721 | static XRayInstrumentAttr *CreateImplicit(ASTContext &Ctx, Spelling S, SourceRange Loc = SourceRange()) { | |||
8722 | auto *A = new (Ctx) XRayInstrumentAttr(Loc, Ctx, S); | |||
8723 | A->setImplicit(true); | |||
8724 | return A; | |||
8725 | } | |||
8726 | ||||
8727 | XRayInstrumentAttr(SourceRange R, ASTContext &Ctx | |||
8728 | , unsigned SI | |||
8729 | ) | |||
8730 | : InheritableAttr(attr::XRayInstrument, R, SI, false, false) | |||
8731 | { | |||
8732 | } | |||
8733 | ||||
8734 | XRayInstrumentAttr *clone(ASTContext &C) const; | |||
8735 | void printPretty(raw_ostream &OS, | |||
8736 | const PrintingPolicy &Policy) const; | |||
8737 | const char *getSpelling() const; | |||
8738 | Spelling getSemanticSpelling() const { | |||
8739 | switch (SpellingListIndex) { | |||
8740 | default: llvm_unreachable("Unknown spelling list index")::llvm::llvm_unreachable_internal("Unknown spelling list index" , "/build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/clang/include/clang/AST/Attrs.inc" , 8740); | |||
8741 | case 0: return GNU_xray_always_instrument; | |||
8742 | case 1: return CXX11_clang_xray_always_instrument; | |||
8743 | case 2: return C2x_clang_xray_always_instrument; | |||
8744 | case 3: return GNU_xray_never_instrument; | |||
8745 | case 4: return CXX11_clang_xray_never_instrument; | |||
8746 | case 5: return C2x_clang_xray_never_instrument; | |||
8747 | } | |||
8748 | } | |||
8749 | bool alwaysXRayInstrument() const { return SpellingListIndex == 0 || | |||
8750 | SpellingListIndex == 1 || | |||
8751 | SpellingListIndex == 2; } | |||
8752 | bool neverXRayInstrument() const { return SpellingListIndex == 3 || | |||
8753 | SpellingListIndex == 4 || | |||
8754 | SpellingListIndex == 5; } | |||
8755 | ||||
8756 | ||||
8757 | static bool classof(const Attr *A) { return A->getKind() == attr::XRayInstrument; } | |||
8758 | }; | |||
8759 | ||||
8760 | class XRayLogArgsAttr : public InheritableAttr { | |||
8761 | unsigned argumentCount; | |||
8762 | ||||
8763 | public: | |||
8764 | static XRayLogArgsAttr *CreateImplicit(ASTContext &Ctx, unsigned ArgumentCount, SourceRange Loc = SourceRange()) { | |||
8765 | auto *A = new (Ctx) XRayLogArgsAttr(Loc, Ctx, ArgumentCount, 0); | |||
8766 | A->setImplicit(true); | |||
8767 | return A; | |||
8768 | } | |||
8769 | ||||
8770 | XRayLogArgsAttr(SourceRange R, ASTContext &Ctx | |||
8771 | , unsigned ArgumentCount | |||
8772 | , unsigned SI | |||
8773 | ) | |||
8774 | : InheritableAttr(attr::XRayLogArgs, R, SI, false, false) | |||
8775 | , argumentCount(ArgumentCount) | |||
8776 | { | |||
8777 | } | |||
8778 | ||||
8779 | XRayLogArgsAttr *clone(ASTContext &C) const; | |||
8780 | void printPretty(raw_ostream &OS, | |||
8781 | const PrintingPolicy &Policy) const; | |||
8782 | const char *getSpelling() const; | |||
8783 | unsigned getArgumentCount() const { | |||
8784 | return argumentCount; | |||
8785 | } | |||
8786 | ||||
8787 | ||||
8788 | ||||
8789 | static bool classof(const Attr *A) { return A->getKind() == attr::XRayLogArgs; } | |||
8790 | }; | |||
8791 | ||||
8792 | #endif // LLVM_CLANG_ATTR_CLASSES_INC |