File: | clang/lib/AST/ASTContext.cpp |
Warning: | line 8254, column 31 Called C++ object pointer is null |
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1 | //===- ASTContext.cpp - Context to hold long-lived AST nodes --------------===// | |||
2 | // | |||
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |||
4 | // See https://llvm.org/LICENSE.txt for license information. | |||
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |||
6 | // | |||
7 | //===----------------------------------------------------------------------===// | |||
8 | // | |||
9 | // This file implements the ASTContext interface. | |||
10 | // | |||
11 | //===----------------------------------------------------------------------===// | |||
12 | ||||
13 | #include "clang/AST/ASTContext.h" | |||
14 | #include "CXXABI.h" | |||
15 | #include "Interp/Context.h" | |||
16 | #include "clang/AST/APValue.h" | |||
17 | #include "clang/AST/ASTConcept.h" | |||
18 | #include "clang/AST/ASTMutationListener.h" | |||
19 | #include "clang/AST/ASTTypeTraits.h" | |||
20 | #include "clang/AST/Attr.h" | |||
21 | #include "clang/AST/AttrIterator.h" | |||
22 | #include "clang/AST/CharUnits.h" | |||
23 | #include "clang/AST/Comment.h" | |||
24 | #include "clang/AST/Decl.h" | |||
25 | #include "clang/AST/DeclBase.h" | |||
26 | #include "clang/AST/DeclCXX.h" | |||
27 | #include "clang/AST/DeclContextInternals.h" | |||
28 | #include "clang/AST/DeclObjC.h" | |||
29 | #include "clang/AST/DeclOpenMP.h" | |||
30 | #include "clang/AST/DeclTemplate.h" | |||
31 | #include "clang/AST/DeclarationName.h" | |||
32 | #include "clang/AST/Expr.h" | |||
33 | #include "clang/AST/ExprCXX.h" | |||
34 | #include "clang/AST/ExprConcepts.h" | |||
35 | #include "clang/AST/ExternalASTSource.h" | |||
36 | #include "clang/AST/Mangle.h" | |||
37 | #include "clang/AST/MangleNumberingContext.h" | |||
38 | #include "clang/AST/NestedNameSpecifier.h" | |||
39 | #include "clang/AST/ParentMapContext.h" | |||
40 | #include "clang/AST/RawCommentList.h" | |||
41 | #include "clang/AST/RecordLayout.h" | |||
42 | #include "clang/AST/Stmt.h" | |||
43 | #include "clang/AST/TemplateBase.h" | |||
44 | #include "clang/AST/TemplateName.h" | |||
45 | #include "clang/AST/Type.h" | |||
46 | #include "clang/AST/TypeLoc.h" | |||
47 | #include "clang/AST/UnresolvedSet.h" | |||
48 | #include "clang/AST/VTableBuilder.h" | |||
49 | #include "clang/Basic/AddressSpaces.h" | |||
50 | #include "clang/Basic/Builtins.h" | |||
51 | #include "clang/Basic/CommentOptions.h" | |||
52 | #include "clang/Basic/ExceptionSpecificationType.h" | |||
53 | #include "clang/Basic/FixedPoint.h" | |||
54 | #include "clang/Basic/IdentifierTable.h" | |||
55 | #include "clang/Basic/LLVM.h" | |||
56 | #include "clang/Basic/LangOptions.h" | |||
57 | #include "clang/Basic/Linkage.h" | |||
58 | #include "clang/Basic/ObjCRuntime.h" | |||
59 | #include "clang/Basic/SanitizerBlacklist.h" | |||
60 | #include "clang/Basic/SourceLocation.h" | |||
61 | #include "clang/Basic/SourceManager.h" | |||
62 | #include "clang/Basic/Specifiers.h" | |||
63 | #include "clang/Basic/TargetCXXABI.h" | |||
64 | #include "clang/Basic/TargetInfo.h" | |||
65 | #include "clang/Basic/XRayLists.h" | |||
66 | #include "llvm/ADT/APInt.h" | |||
67 | #include "llvm/ADT/APSInt.h" | |||
68 | #include "llvm/ADT/ArrayRef.h" | |||
69 | #include "llvm/ADT/DenseMap.h" | |||
70 | #include "llvm/ADT/DenseSet.h" | |||
71 | #include "llvm/ADT/FoldingSet.h" | |||
72 | #include "llvm/ADT/None.h" | |||
73 | #include "llvm/ADT/Optional.h" | |||
74 | #include "llvm/ADT/PointerUnion.h" | |||
75 | #include "llvm/ADT/STLExtras.h" | |||
76 | #include "llvm/ADT/SmallPtrSet.h" | |||
77 | #include "llvm/ADT/SmallVector.h" | |||
78 | #include "llvm/ADT/StringExtras.h" | |||
79 | #include "llvm/ADT/StringRef.h" | |||
80 | #include "llvm/ADT/Triple.h" | |||
81 | #include "llvm/Support/Capacity.h" | |||
82 | #include "llvm/Support/Casting.h" | |||
83 | #include "llvm/Support/Compiler.h" | |||
84 | #include "llvm/Support/ErrorHandling.h" | |||
85 | #include "llvm/Support/MathExtras.h" | |||
86 | #include "llvm/Support/raw_ostream.h" | |||
87 | #include <algorithm> | |||
88 | #include <cassert> | |||
89 | #include <cstddef> | |||
90 | #include <cstdint> | |||
91 | #include <cstdlib> | |||
92 | #include <map> | |||
93 | #include <memory> | |||
94 | #include <string> | |||
95 | #include <tuple> | |||
96 | #include <utility> | |||
97 | ||||
98 | using namespace clang; | |||
99 | ||||
100 | enum FloatingRank { | |||
101 | Float16Rank, HalfRank, FloatRank, DoubleRank, LongDoubleRank, Float128Rank | |||
102 | }; | |||
103 | ||||
104 | /// \returns location that is relevant when searching for Doc comments related | |||
105 | /// to \p D. | |||
106 | static SourceLocation getDeclLocForCommentSearch(const Decl *D, | |||
107 | SourceManager &SourceMgr) { | |||
108 | assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 108, __PRETTY_FUNCTION__)); | |||
109 | ||||
110 | // User can not attach documentation to implicit declarations. | |||
111 | if (D->isImplicit()) | |||
112 | return {}; | |||
113 | ||||
114 | // User can not attach documentation to implicit instantiations. | |||
115 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
116 | if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
117 | return {}; | |||
118 | } | |||
119 | ||||
120 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
121 | if (VD->isStaticDataMember() && | |||
122 | VD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
123 | return {}; | |||
124 | } | |||
125 | ||||
126 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(D)) { | |||
127 | if (CRD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
128 | return {}; | |||
129 | } | |||
130 | ||||
131 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D)) { | |||
132 | TemplateSpecializationKind TSK = CTSD->getSpecializationKind(); | |||
133 | if (TSK == TSK_ImplicitInstantiation || | |||
134 | TSK == TSK_Undeclared) | |||
135 | return {}; | |||
136 | } | |||
137 | ||||
138 | if (const auto *ED = dyn_cast<EnumDecl>(D)) { | |||
139 | if (ED->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
140 | return {}; | |||
141 | } | |||
142 | if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
143 | // When tag declaration (but not definition!) is part of the | |||
144 | // decl-specifier-seq of some other declaration, it doesn't get comment | |||
145 | if (TD->isEmbeddedInDeclarator() && !TD->isCompleteDefinition()) | |||
146 | return {}; | |||
147 | } | |||
148 | // TODO: handle comments for function parameters properly. | |||
149 | if (isa<ParmVarDecl>(D)) | |||
150 | return {}; | |||
151 | ||||
152 | // TODO: we could look up template parameter documentation in the template | |||
153 | // documentation. | |||
154 | if (isa<TemplateTypeParmDecl>(D) || | |||
155 | isa<NonTypeTemplateParmDecl>(D) || | |||
156 | isa<TemplateTemplateParmDecl>(D)) | |||
157 | return {}; | |||
158 | ||||
159 | // Find declaration location. | |||
160 | // For Objective-C declarations we generally don't expect to have multiple | |||
161 | // declarators, thus use declaration starting location as the "declaration | |||
162 | // location". | |||
163 | // For all other declarations multiple declarators are used quite frequently, | |||
164 | // so we use the location of the identifier as the "declaration location". | |||
165 | if (isa<ObjCMethodDecl>(D) || isa<ObjCContainerDecl>(D) || | |||
166 | isa<ObjCPropertyDecl>(D) || | |||
167 | isa<RedeclarableTemplateDecl>(D) || | |||
168 | isa<ClassTemplateSpecializationDecl>(D) || | |||
169 | // Allow association with Y across {} in `typedef struct X {} Y`. | |||
170 | isa<TypedefDecl>(D)) | |||
171 | return D->getBeginLoc(); | |||
172 | else { | |||
173 | const SourceLocation DeclLoc = D->getLocation(); | |||
174 | if (DeclLoc.isMacroID()) { | |||
175 | if (isa<TypedefDecl>(D)) { | |||
176 | // If location of the typedef name is in a macro, it is because being | |||
177 | // declared via a macro. Try using declaration's starting location as | |||
178 | // the "declaration location". | |||
179 | return D->getBeginLoc(); | |||
180 | } else if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
181 | // If location of the tag decl is inside a macro, but the spelling of | |||
182 | // the tag name comes from a macro argument, it looks like a special | |||
183 | // macro like NS_ENUM is being used to define the tag decl. In that | |||
184 | // case, adjust the source location to the expansion loc so that we can | |||
185 | // attach the comment to the tag decl. | |||
186 | if (SourceMgr.isMacroArgExpansion(DeclLoc) && | |||
187 | TD->isCompleteDefinition()) | |||
188 | return SourceMgr.getExpansionLoc(DeclLoc); | |||
189 | } | |||
190 | } | |||
191 | return DeclLoc; | |||
192 | } | |||
193 | ||||
194 | return {}; | |||
195 | } | |||
196 | ||||
197 | RawComment *ASTContext::getRawCommentForDeclNoCacheImpl( | |||
198 | const Decl *D, const SourceLocation RepresentativeLocForDecl, | |||
199 | const std::map<unsigned, RawComment *> &CommentsInTheFile) const { | |||
200 | // If the declaration doesn't map directly to a location in a file, we | |||
201 | // can't find the comment. | |||
202 | if (RepresentativeLocForDecl.isInvalid() || | |||
203 | !RepresentativeLocForDecl.isFileID()) | |||
204 | return nullptr; | |||
205 | ||||
206 | // If there are no comments anywhere, we won't find anything. | |||
207 | if (CommentsInTheFile.empty()) | |||
208 | return nullptr; | |||
209 | ||||
210 | // Decompose the location for the declaration and find the beginning of the | |||
211 | // file buffer. | |||
212 | const std::pair<FileID, unsigned> DeclLocDecomp = | |||
213 | SourceMgr.getDecomposedLoc(RepresentativeLocForDecl); | |||
214 | ||||
215 | // Slow path. | |||
216 | auto OffsetCommentBehindDecl = | |||
217 | CommentsInTheFile.lower_bound(DeclLocDecomp.second); | |||
218 | ||||
219 | // First check whether we have a trailing comment. | |||
220 | if (OffsetCommentBehindDecl != CommentsInTheFile.end()) { | |||
221 | RawComment *CommentBehindDecl = OffsetCommentBehindDecl->second; | |||
222 | if ((CommentBehindDecl->isDocumentation() || | |||
223 | LangOpts.CommentOpts.ParseAllComments) && | |||
224 | CommentBehindDecl->isTrailingComment() && | |||
225 | (isa<FieldDecl>(D) || isa<EnumConstantDecl>(D) || isa<VarDecl>(D) || | |||
226 | isa<ObjCMethodDecl>(D) || isa<ObjCPropertyDecl>(D))) { | |||
227 | ||||
228 | // Check that Doxygen trailing comment comes after the declaration, starts | |||
229 | // on the same line and in the same file as the declaration. | |||
230 | if (SourceMgr.getLineNumber(DeclLocDecomp.first, DeclLocDecomp.second) == | |||
231 | Comments.getCommentBeginLine(CommentBehindDecl, DeclLocDecomp.first, | |||
232 | OffsetCommentBehindDecl->first)) { | |||
233 | return CommentBehindDecl; | |||
234 | } | |||
235 | } | |||
236 | } | |||
237 | ||||
238 | // The comment just after the declaration was not a trailing comment. | |||
239 | // Let's look at the previous comment. | |||
240 | if (OffsetCommentBehindDecl == CommentsInTheFile.begin()) | |||
241 | return nullptr; | |||
242 | ||||
243 | auto OffsetCommentBeforeDecl = --OffsetCommentBehindDecl; | |||
244 | RawComment *CommentBeforeDecl = OffsetCommentBeforeDecl->second; | |||
245 | ||||
246 | // Check that we actually have a non-member Doxygen comment. | |||
247 | if (!(CommentBeforeDecl->isDocumentation() || | |||
248 | LangOpts.CommentOpts.ParseAllComments) || | |||
249 | CommentBeforeDecl->isTrailingComment()) | |||
250 | return nullptr; | |||
251 | ||||
252 | // Decompose the end of the comment. | |||
253 | const unsigned CommentEndOffset = | |||
254 | Comments.getCommentEndOffset(CommentBeforeDecl); | |||
255 | ||||
256 | // Get the corresponding buffer. | |||
257 | bool Invalid = false; | |||
258 | const char *Buffer = SourceMgr.getBufferData(DeclLocDecomp.first, | |||
259 | &Invalid).data(); | |||
260 | if (Invalid) | |||
261 | return nullptr; | |||
262 | ||||
263 | // Extract text between the comment and declaration. | |||
264 | StringRef Text(Buffer + CommentEndOffset, | |||
265 | DeclLocDecomp.second - CommentEndOffset); | |||
266 | ||||
267 | // There should be no other declarations or preprocessor directives between | |||
268 | // comment and declaration. | |||
269 | if (Text.find_first_of(";{}#@") != StringRef::npos) | |||
270 | return nullptr; | |||
271 | ||||
272 | return CommentBeforeDecl; | |||
273 | } | |||
274 | ||||
275 | RawComment *ASTContext::getRawCommentForDeclNoCache(const Decl *D) const { | |||
276 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
277 | ||||
278 | // If the declaration doesn't map directly to a location in a file, we | |||
279 | // can't find the comment. | |||
280 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
281 | return nullptr; | |||
282 | ||||
283 | if (ExternalSource && !CommentsLoaded) { | |||
284 | ExternalSource->ReadComments(); | |||
285 | CommentsLoaded = true; | |||
286 | } | |||
287 | ||||
288 | if (Comments.empty()) | |||
289 | return nullptr; | |||
290 | ||||
291 | const FileID File = SourceMgr.getDecomposedLoc(DeclLoc).first; | |||
292 | const auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
293 | if (!CommentsInThisFile || CommentsInThisFile->empty()) | |||
294 | return nullptr; | |||
295 | ||||
296 | return getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile); | |||
297 | } | |||
298 | ||||
299 | void ASTContext::addComment(const RawComment &RC) { | |||
300 | assert(LangOpts.RetainCommentsFromSystemHeaders ||((LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader (RC.getSourceRange().getBegin())) ? static_cast<void> ( 0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 301, __PRETTY_FUNCTION__)) | |||
301 | !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()))((LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader (RC.getSourceRange().getBegin())) ? static_cast<void> ( 0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 301, __PRETTY_FUNCTION__)); | |||
302 | Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc); | |||
303 | } | |||
304 | ||||
305 | /// If we have a 'templated' declaration for a template, adjust 'D' to | |||
306 | /// refer to the actual template. | |||
307 | /// If we have an implicit instantiation, adjust 'D' to refer to template. | |||
308 | static const Decl &adjustDeclToTemplate(const Decl &D) { | |||
309 | if (const auto *FD = dyn_cast<FunctionDecl>(&D)) { | |||
310 | // Is this function declaration part of a function template? | |||
311 | if (const FunctionTemplateDecl *FTD = FD->getDescribedFunctionTemplate()) | |||
312 | return *FTD; | |||
313 | ||||
314 | // Nothing to do if function is not an implicit instantiation. | |||
315 | if (FD->getTemplateSpecializationKind() != TSK_ImplicitInstantiation) | |||
316 | return D; | |||
317 | ||||
318 | // Function is an implicit instantiation of a function template? | |||
319 | if (const FunctionTemplateDecl *FTD = FD->getPrimaryTemplate()) | |||
320 | return *FTD; | |||
321 | ||||
322 | // Function is instantiated from a member definition of a class template? | |||
323 | if (const FunctionDecl *MemberDecl = | |||
324 | FD->getInstantiatedFromMemberFunction()) | |||
325 | return *MemberDecl; | |||
326 | ||||
327 | return D; | |||
328 | } | |||
329 | if (const auto *VD = dyn_cast<VarDecl>(&D)) { | |||
330 | // Static data member is instantiated from a member definition of a class | |||
331 | // template? | |||
332 | if (VD->isStaticDataMember()) | |||
333 | if (const VarDecl *MemberDecl = VD->getInstantiatedFromStaticDataMember()) | |||
334 | return *MemberDecl; | |||
335 | ||||
336 | return D; | |||
337 | } | |||
338 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(&D)) { | |||
339 | // Is this class declaration part of a class template? | |||
340 | if (const ClassTemplateDecl *CTD = CRD->getDescribedClassTemplate()) | |||
341 | return *CTD; | |||
342 | ||||
343 | // Class is an implicit instantiation of a class template or partial | |||
344 | // specialization? | |||
345 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(CRD)) { | |||
346 | if (CTSD->getSpecializationKind() != TSK_ImplicitInstantiation) | |||
347 | return D; | |||
348 | llvm::PointerUnion<ClassTemplateDecl *, | |||
349 | ClassTemplatePartialSpecializationDecl *> | |||
350 | PU = CTSD->getSpecializedTemplateOrPartial(); | |||
351 | return PU.is<ClassTemplateDecl *>() | |||
352 | ? *static_cast<const Decl *>(PU.get<ClassTemplateDecl *>()) | |||
353 | : *static_cast<const Decl *>( | |||
354 | PU.get<ClassTemplatePartialSpecializationDecl *>()); | |||
355 | } | |||
356 | ||||
357 | // Class is instantiated from a member definition of a class template? | |||
358 | if (const MemberSpecializationInfo *Info = | |||
359 | CRD->getMemberSpecializationInfo()) | |||
360 | return *Info->getInstantiatedFrom(); | |||
361 | ||||
362 | return D; | |||
363 | } | |||
364 | if (const auto *ED = dyn_cast<EnumDecl>(&D)) { | |||
365 | // Enum is instantiated from a member definition of a class template? | |||
366 | if (const EnumDecl *MemberDecl = ED->getInstantiatedFromMemberEnum()) | |||
367 | return *MemberDecl; | |||
368 | ||||
369 | return D; | |||
370 | } | |||
371 | // FIXME: Adjust alias templates? | |||
372 | return D; | |||
373 | } | |||
374 | ||||
375 | const RawComment *ASTContext::getRawCommentForAnyRedecl( | |||
376 | const Decl *D, | |||
377 | const Decl **OriginalDecl) const { | |||
378 | if (!D) { | |||
379 | if (OriginalDecl) | |||
380 | OriginalDecl = nullptr; | |||
381 | return nullptr; | |||
382 | } | |||
383 | ||||
384 | D = &adjustDeclToTemplate(*D); | |||
385 | ||||
386 | // Any comment directly attached to D? | |||
387 | { | |||
388 | auto DeclComment = DeclRawComments.find(D); | |||
389 | if (DeclComment != DeclRawComments.end()) { | |||
390 | if (OriginalDecl) | |||
391 | *OriginalDecl = D; | |||
392 | return DeclComment->second; | |||
393 | } | |||
394 | } | |||
395 | ||||
396 | // Any comment attached to any redeclaration of D? | |||
397 | const Decl *CanonicalD = D->getCanonicalDecl(); | |||
398 | if (!CanonicalD) | |||
399 | return nullptr; | |||
400 | ||||
401 | { | |||
402 | auto RedeclComment = RedeclChainComments.find(CanonicalD); | |||
403 | if (RedeclComment != RedeclChainComments.end()) { | |||
404 | if (OriginalDecl) | |||
405 | *OriginalDecl = RedeclComment->second; | |||
406 | auto CommentAtRedecl = DeclRawComments.find(RedeclComment->second); | |||
407 | assert(CommentAtRedecl != DeclRawComments.end() &&((CommentAtRedecl != DeclRawComments.end() && "This decl is supposed to have comment attached." ) ? static_cast<void> (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 408, __PRETTY_FUNCTION__)) | |||
408 | "This decl is supposed to have comment attached.")((CommentAtRedecl != DeclRawComments.end() && "This decl is supposed to have comment attached." ) ? static_cast<void> (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 408, __PRETTY_FUNCTION__)); | |||
409 | return CommentAtRedecl->second; | |||
410 | } | |||
411 | } | |||
412 | ||||
413 | // Any redeclarations of D that we haven't checked for comments yet? | |||
414 | // We can't use DenseMap::iterator directly since it'd get invalid. | |||
415 | auto LastCheckedRedecl = [this, CanonicalD]() -> const Decl * { | |||
416 | auto LookupRes = CommentlessRedeclChains.find(CanonicalD); | |||
417 | if (LookupRes != CommentlessRedeclChains.end()) | |||
418 | return LookupRes->second; | |||
419 | return nullptr; | |||
420 | }(); | |||
421 | ||||
422 | for (const auto Redecl : D->redecls()) { | |||
423 | assert(Redecl)((Redecl) ? static_cast<void> (0) : __assert_fail ("Redecl" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 423, __PRETTY_FUNCTION__)); | |||
424 | // Skip all redeclarations that have been checked previously. | |||
425 | if (LastCheckedRedecl) { | |||
426 | if (LastCheckedRedecl == Redecl) { | |||
427 | LastCheckedRedecl = nullptr; | |||
428 | } | |||
429 | continue; | |||
430 | } | |||
431 | const RawComment *RedeclComment = getRawCommentForDeclNoCache(Redecl); | |||
432 | if (RedeclComment) { | |||
433 | cacheRawCommentForDecl(*Redecl, *RedeclComment); | |||
434 | if (OriginalDecl) | |||
435 | *OriginalDecl = Redecl; | |||
436 | return RedeclComment; | |||
437 | } | |||
438 | CommentlessRedeclChains[CanonicalD] = Redecl; | |||
439 | } | |||
440 | ||||
441 | if (OriginalDecl) | |||
442 | *OriginalDecl = nullptr; | |||
443 | return nullptr; | |||
444 | } | |||
445 | ||||
446 | void ASTContext::cacheRawCommentForDecl(const Decl &OriginalD, | |||
447 | const RawComment &Comment) const { | |||
448 | assert(Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments)((Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments ) ? static_cast<void> (0) : __assert_fail ("Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 448, __PRETTY_FUNCTION__)); | |||
449 | DeclRawComments.try_emplace(&OriginalD, &Comment); | |||
450 | const Decl *const CanonicalDecl = OriginalD.getCanonicalDecl(); | |||
451 | RedeclChainComments.try_emplace(CanonicalDecl, &OriginalD); | |||
452 | CommentlessRedeclChains.erase(CanonicalDecl); | |||
453 | } | |||
454 | ||||
455 | static void addRedeclaredMethods(const ObjCMethodDecl *ObjCMethod, | |||
456 | SmallVectorImpl<const NamedDecl *> &Redeclared) { | |||
457 | const DeclContext *DC = ObjCMethod->getDeclContext(); | |||
458 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(DC)) { | |||
459 | const ObjCInterfaceDecl *ID = IMD->getClassInterface(); | |||
460 | if (!ID) | |||
461 | return; | |||
462 | // Add redeclared method here. | |||
463 | for (const auto *Ext : ID->known_extensions()) { | |||
464 | if (ObjCMethodDecl *RedeclaredMethod = | |||
465 | Ext->getMethod(ObjCMethod->getSelector(), | |||
466 | ObjCMethod->isInstanceMethod())) | |||
467 | Redeclared.push_back(RedeclaredMethod); | |||
468 | } | |||
469 | } | |||
470 | } | |||
471 | ||||
472 | void ASTContext::attachCommentsToJustParsedDecls(ArrayRef<Decl *> Decls, | |||
473 | const Preprocessor *PP) { | |||
474 | if (Comments.empty() || Decls.empty()) | |||
475 | return; | |||
476 | ||||
477 | FileID File; | |||
478 | for (Decl *D : Decls) { | |||
479 | SourceLocation Loc = D->getLocation(); | |||
480 | if (Loc.isValid()) { | |||
481 | // See if there are any new comments that are not attached to a decl. | |||
482 | // The location doesn't have to be precise - we care only about the file. | |||
483 | File = SourceMgr.getDecomposedLoc(Loc).first; | |||
484 | break; | |||
485 | } | |||
486 | } | |||
487 | ||||
488 | if (File.isInvalid()) | |||
489 | return; | |||
490 | ||||
491 | auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
492 | if (!CommentsInThisFile || CommentsInThisFile->empty() || | |||
493 | CommentsInThisFile->rbegin()->second->isAttached()) | |||
494 | return; | |||
495 | ||||
496 | // There is at least one comment not attached to a decl. | |||
497 | // Maybe it should be attached to one of Decls? | |||
498 | // | |||
499 | // Note that this way we pick up not only comments that precede the | |||
500 | // declaration, but also comments that *follow* the declaration -- thanks to | |||
501 | // the lookahead in the lexer: we've consumed the semicolon and looked | |||
502 | // ahead through comments. | |||
503 | ||||
504 | for (const Decl *D : Decls) { | |||
505 | assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 505, __PRETTY_FUNCTION__)); | |||
506 | if (D->isInvalidDecl()) | |||
507 | continue; | |||
508 | ||||
509 | D = &adjustDeclToTemplate(*D); | |||
510 | ||||
511 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
512 | ||||
513 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
514 | continue; | |||
515 | ||||
516 | if (DeclRawComments.count(D) > 0) | |||
517 | continue; | |||
518 | ||||
519 | if (RawComment *const DocComment = | |||
520 | getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile)) { | |||
521 | cacheRawCommentForDecl(*D, *DocComment); | |||
522 | comments::FullComment *FC = DocComment->parse(*this, PP, D); | |||
523 | ParsedComments[D->getCanonicalDecl()] = FC; | |||
524 | } | |||
525 | } | |||
526 | } | |||
527 | ||||
528 | comments::FullComment *ASTContext::cloneFullComment(comments::FullComment *FC, | |||
529 | const Decl *D) const { | |||
530 | auto *ThisDeclInfo = new (*this) comments::DeclInfo; | |||
531 | ThisDeclInfo->CommentDecl = D; | |||
532 | ThisDeclInfo->IsFilled = false; | |||
533 | ThisDeclInfo->fill(); | |||
534 | ThisDeclInfo->CommentDecl = FC->getDecl(); | |||
535 | if (!ThisDeclInfo->TemplateParameters) | |||
536 | ThisDeclInfo->TemplateParameters = FC->getDeclInfo()->TemplateParameters; | |||
537 | comments::FullComment *CFC = | |||
538 | new (*this) comments::FullComment(FC->getBlocks(), | |||
539 | ThisDeclInfo); | |||
540 | return CFC; | |||
541 | } | |||
542 | ||||
543 | comments::FullComment *ASTContext::getLocalCommentForDeclUncached(const Decl *D) const { | |||
544 | const RawComment *RC = getRawCommentForDeclNoCache(D); | |||
545 | return RC ? RC->parse(*this, nullptr, D) : nullptr; | |||
546 | } | |||
547 | ||||
548 | comments::FullComment *ASTContext::getCommentForDecl( | |||
549 | const Decl *D, | |||
550 | const Preprocessor *PP) const { | |||
551 | if (!D || D->isInvalidDecl()) | |||
552 | return nullptr; | |||
553 | D = &adjustDeclToTemplate(*D); | |||
554 | ||||
555 | const Decl *Canonical = D->getCanonicalDecl(); | |||
556 | llvm::DenseMap<const Decl *, comments::FullComment *>::iterator Pos = | |||
557 | ParsedComments.find(Canonical); | |||
558 | ||||
559 | if (Pos != ParsedComments.end()) { | |||
560 | if (Canonical != D) { | |||
561 | comments::FullComment *FC = Pos->second; | |||
562 | comments::FullComment *CFC = cloneFullComment(FC, D); | |||
563 | return CFC; | |||
564 | } | |||
565 | return Pos->second; | |||
566 | } | |||
567 | ||||
568 | const Decl *OriginalDecl = nullptr; | |||
569 | ||||
570 | const RawComment *RC = getRawCommentForAnyRedecl(D, &OriginalDecl); | |||
571 | if (!RC) { | |||
572 | if (isa<ObjCMethodDecl>(D) || isa<FunctionDecl>(D)) { | |||
573 | SmallVector<const NamedDecl*, 8> Overridden; | |||
574 | const auto *OMD = dyn_cast<ObjCMethodDecl>(D); | |||
575 | if (OMD && OMD->isPropertyAccessor()) | |||
576 | if (const ObjCPropertyDecl *PDecl = OMD->findPropertyDecl()) | |||
577 | if (comments::FullComment *FC = getCommentForDecl(PDecl, PP)) | |||
578 | return cloneFullComment(FC, D); | |||
579 | if (OMD) | |||
580 | addRedeclaredMethods(OMD, Overridden); | |||
581 | getOverriddenMethods(dyn_cast<NamedDecl>(D), Overridden); | |||
582 | for (unsigned i = 0, e = Overridden.size(); i < e; i++) | |||
583 | if (comments::FullComment *FC = getCommentForDecl(Overridden[i], PP)) | |||
584 | return cloneFullComment(FC, D); | |||
585 | } | |||
586 | else if (const auto *TD = dyn_cast<TypedefNameDecl>(D)) { | |||
587 | // Attach any tag type's documentation to its typedef if latter | |||
588 | // does not have one of its own. | |||
589 | QualType QT = TD->getUnderlyingType(); | |||
590 | if (const auto *TT = QT->getAs<TagType>()) | |||
591 | if (const Decl *TD = TT->getDecl()) | |||
592 | if (comments::FullComment *FC = getCommentForDecl(TD, PP)) | |||
593 | return cloneFullComment(FC, D); | |||
594 | } | |||
595 | else if (const auto *IC = dyn_cast<ObjCInterfaceDecl>(D)) { | |||
596 | while (IC->getSuperClass()) { | |||
597 | IC = IC->getSuperClass(); | |||
598 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
599 | return cloneFullComment(FC, D); | |||
600 | } | |||
601 | } | |||
602 | else if (const auto *CD = dyn_cast<ObjCCategoryDecl>(D)) { | |||
603 | if (const ObjCInterfaceDecl *IC = CD->getClassInterface()) | |||
604 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
605 | return cloneFullComment(FC, D); | |||
606 | } | |||
607 | else if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) { | |||
608 | if (!(RD = RD->getDefinition())) | |||
609 | return nullptr; | |||
610 | // Check non-virtual bases. | |||
611 | for (const auto &I : RD->bases()) { | |||
612 | if (I.isVirtual() || (I.getAccessSpecifier() != AS_public)) | |||
613 | continue; | |||
614 | QualType Ty = I.getType(); | |||
615 | if (Ty.isNull()) | |||
616 | continue; | |||
617 | if (const CXXRecordDecl *NonVirtualBase = Ty->getAsCXXRecordDecl()) { | |||
618 | if (!(NonVirtualBase= NonVirtualBase->getDefinition())) | |||
619 | continue; | |||
620 | ||||
621 | if (comments::FullComment *FC = getCommentForDecl((NonVirtualBase), PP)) | |||
622 | return cloneFullComment(FC, D); | |||
623 | } | |||
624 | } | |||
625 | // Check virtual bases. | |||
626 | for (const auto &I : RD->vbases()) { | |||
627 | if (I.getAccessSpecifier() != AS_public) | |||
628 | continue; | |||
629 | QualType Ty = I.getType(); | |||
630 | if (Ty.isNull()) | |||
631 | continue; | |||
632 | if (const CXXRecordDecl *VirtualBase = Ty->getAsCXXRecordDecl()) { | |||
633 | if (!(VirtualBase= VirtualBase->getDefinition())) | |||
634 | continue; | |||
635 | if (comments::FullComment *FC = getCommentForDecl((VirtualBase), PP)) | |||
636 | return cloneFullComment(FC, D); | |||
637 | } | |||
638 | } | |||
639 | } | |||
640 | return nullptr; | |||
641 | } | |||
642 | ||||
643 | // If the RawComment was attached to other redeclaration of this Decl, we | |||
644 | // should parse the comment in context of that other Decl. This is important | |||
645 | // because comments can contain references to parameter names which can be | |||
646 | // different across redeclarations. | |||
647 | if (D != OriginalDecl && OriginalDecl) | |||
648 | return getCommentForDecl(OriginalDecl, PP); | |||
649 | ||||
650 | comments::FullComment *FC = RC->parse(*this, PP, D); | |||
651 | ParsedComments[Canonical] = FC; | |||
652 | return FC; | |||
653 | } | |||
654 | ||||
655 | void | |||
656 | ASTContext::CanonicalTemplateTemplateParm::Profile(llvm::FoldingSetNodeID &ID, | |||
657 | const ASTContext &C, | |||
658 | TemplateTemplateParmDecl *Parm) { | |||
659 | ID.AddInteger(Parm->getDepth()); | |||
660 | ID.AddInteger(Parm->getPosition()); | |||
661 | ID.AddBoolean(Parm->isParameterPack()); | |||
662 | ||||
663 | TemplateParameterList *Params = Parm->getTemplateParameters(); | |||
664 | ID.AddInteger(Params->size()); | |||
665 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
666 | PEnd = Params->end(); | |||
667 | P != PEnd; ++P) { | |||
668 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
669 | ID.AddInteger(0); | |||
670 | ID.AddBoolean(TTP->isParameterPack()); | |||
671 | const TypeConstraint *TC = TTP->getTypeConstraint(); | |||
672 | ID.AddBoolean(TC != nullptr); | |||
673 | if (TC) | |||
674 | TC->getImmediatelyDeclaredConstraint()->Profile(ID, C, | |||
675 | /*Canonical=*/true); | |||
676 | if (TTP->isExpandedParameterPack()) { | |||
677 | ID.AddBoolean(true); | |||
678 | ID.AddInteger(TTP->getNumExpansionParameters()); | |||
679 | } else | |||
680 | ID.AddBoolean(false); | |||
681 | continue; | |||
682 | } | |||
683 | ||||
684 | if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
685 | ID.AddInteger(1); | |||
686 | ID.AddBoolean(NTTP->isParameterPack()); | |||
687 | ID.AddPointer(NTTP->getType().getCanonicalType().getAsOpaquePtr()); | |||
688 | if (NTTP->isExpandedParameterPack()) { | |||
689 | ID.AddBoolean(true); | |||
690 | ID.AddInteger(NTTP->getNumExpansionTypes()); | |||
691 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
692 | QualType T = NTTP->getExpansionType(I); | |||
693 | ID.AddPointer(T.getCanonicalType().getAsOpaquePtr()); | |||
694 | } | |||
695 | } else | |||
696 | ID.AddBoolean(false); | |||
697 | continue; | |||
698 | } | |||
699 | ||||
700 | auto *TTP = cast<TemplateTemplateParmDecl>(*P); | |||
701 | ID.AddInteger(2); | |||
702 | Profile(ID, C, TTP); | |||
703 | } | |||
704 | Expr *RequiresClause = Parm->getTemplateParameters()->getRequiresClause(); | |||
705 | ID.AddBoolean(RequiresClause != nullptr); | |||
706 | if (RequiresClause) | |||
707 | RequiresClause->Profile(ID, C, /*Canonical=*/true); | |||
708 | } | |||
709 | ||||
710 | static Expr * | |||
711 | canonicalizeImmediatelyDeclaredConstraint(const ASTContext &C, Expr *IDC, | |||
712 | QualType ConstrainedType) { | |||
713 | // This is a bit ugly - we need to form a new immediately-declared | |||
714 | // constraint that references the new parameter; this would ideally | |||
715 | // require semantic analysis (e.g. template<C T> struct S {}; - the | |||
716 | // converted arguments of C<T> could be an argument pack if C is | |||
717 | // declared as template<typename... T> concept C = ...). | |||
718 | // We don't have semantic analysis here so we dig deep into the | |||
719 | // ready-made constraint expr and change the thing manually. | |||
720 | ConceptSpecializationExpr *CSE; | |||
721 | if (const auto *Fold = dyn_cast<CXXFoldExpr>(IDC)) | |||
722 | CSE = cast<ConceptSpecializationExpr>(Fold->getLHS()); | |||
723 | else | |||
724 | CSE = cast<ConceptSpecializationExpr>(IDC); | |||
725 | ArrayRef<TemplateArgument> OldConverted = CSE->getTemplateArguments(); | |||
726 | SmallVector<TemplateArgument, 3> NewConverted; | |||
727 | NewConverted.reserve(OldConverted.size()); | |||
728 | if (OldConverted.front().getKind() == TemplateArgument::Pack) { | |||
729 | // The case: | |||
730 | // template<typename... T> concept C = true; | |||
731 | // template<C<int> T> struct S; -> constraint is C<{T, int}> | |||
732 | NewConverted.push_back(ConstrainedType); | |||
733 | for (auto &Arg : OldConverted.front().pack_elements().drop_front(1)) | |||
734 | NewConverted.push_back(Arg); | |||
735 | TemplateArgument NewPack(NewConverted); | |||
736 | ||||
737 | NewConverted.clear(); | |||
738 | NewConverted.push_back(NewPack); | |||
739 | assert(OldConverted.size() == 1 &&((OldConverted.size() == 1 && "Template parameter pack should be the last parameter" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.size() == 1 && \"Template parameter pack should be the last parameter\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 740, __PRETTY_FUNCTION__)) | |||
740 | "Template parameter pack should be the last parameter")((OldConverted.size() == 1 && "Template parameter pack should be the last parameter" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.size() == 1 && \"Template parameter pack should be the last parameter\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 740, __PRETTY_FUNCTION__)); | |||
741 | } else { | |||
742 | assert(OldConverted.front().getKind() == TemplateArgument::Type &&((OldConverted.front().getKind() == TemplateArgument::Type && "Unexpected first argument kind for immediately-declared " "constraint" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 744, __PRETTY_FUNCTION__)) | |||
743 | "Unexpected first argument kind for immediately-declared "((OldConverted.front().getKind() == TemplateArgument::Type && "Unexpected first argument kind for immediately-declared " "constraint" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 744, __PRETTY_FUNCTION__)) | |||
744 | "constraint")((OldConverted.front().getKind() == TemplateArgument::Type && "Unexpected first argument kind for immediately-declared " "constraint" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 744, __PRETTY_FUNCTION__)); | |||
745 | NewConverted.push_back(ConstrainedType); | |||
746 | for (auto &Arg : OldConverted.drop_front(1)) | |||
747 | NewConverted.push_back(Arg); | |||
748 | } | |||
749 | Expr *NewIDC = ConceptSpecializationExpr::Create( | |||
750 | C, CSE->getNamedConcept(), NewConverted, nullptr, | |||
751 | CSE->isInstantiationDependent(), CSE->containsUnexpandedParameterPack()); | |||
752 | ||||
753 | if (auto *OrigFold = dyn_cast<CXXFoldExpr>(IDC)) | |||
754 | NewIDC = new (C) CXXFoldExpr(OrigFold->getType(), SourceLocation(), NewIDC, | |||
755 | BinaryOperatorKind::BO_LAnd, | |||
756 | SourceLocation(), /*RHS=*/nullptr, | |||
757 | SourceLocation(), /*NumExpansions=*/None); | |||
758 | return NewIDC; | |||
759 | } | |||
760 | ||||
761 | TemplateTemplateParmDecl * | |||
762 | ASTContext::getCanonicalTemplateTemplateParmDecl( | |||
763 | TemplateTemplateParmDecl *TTP) const { | |||
764 | // Check if we already have a canonical template template parameter. | |||
765 | llvm::FoldingSetNodeID ID; | |||
766 | CanonicalTemplateTemplateParm::Profile(ID, *this, TTP); | |||
767 | void *InsertPos = nullptr; | |||
768 | CanonicalTemplateTemplateParm *Canonical | |||
769 | = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
770 | if (Canonical) | |||
771 | return Canonical->getParam(); | |||
772 | ||||
773 | // Build a canonical template parameter list. | |||
774 | TemplateParameterList *Params = TTP->getTemplateParameters(); | |||
775 | SmallVector<NamedDecl *, 4> CanonParams; | |||
776 | CanonParams.reserve(Params->size()); | |||
777 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
778 | PEnd = Params->end(); | |||
779 | P != PEnd; ++P) { | |||
780 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
781 | TemplateTypeParmDecl *NewTTP = TemplateTypeParmDecl::Create(*this, | |||
782 | getTranslationUnitDecl(), SourceLocation(), SourceLocation(), | |||
783 | TTP->getDepth(), TTP->getIndex(), nullptr, false, | |||
784 | TTP->isParameterPack(), TTP->hasTypeConstraint(), | |||
785 | TTP->isExpandedParameterPack() ? | |||
786 | llvm::Optional<unsigned>(TTP->getNumExpansionParameters()) : None); | |||
787 | if (const auto *TC = TTP->getTypeConstraint()) { | |||
788 | QualType ParamAsArgument(NewTTP->getTypeForDecl(), 0); | |||
789 | Expr *NewIDC = canonicalizeImmediatelyDeclaredConstraint( | |||
790 | *this, TC->getImmediatelyDeclaredConstraint(), | |||
791 | ParamAsArgument); | |||
792 | TemplateArgumentListInfo CanonArgsAsWritten; | |||
793 | if (auto *Args = TC->getTemplateArgsAsWritten()) | |||
794 | for (const auto &ArgLoc : Args->arguments()) | |||
795 | CanonArgsAsWritten.addArgument( | |||
796 | TemplateArgumentLoc(ArgLoc.getArgument(), | |||
797 | TemplateArgumentLocInfo())); | |||
798 | NewTTP->setTypeConstraint( | |||
799 | NestedNameSpecifierLoc(), | |||
800 | DeclarationNameInfo(TC->getNamedConcept()->getDeclName(), | |||
801 | SourceLocation()), /*FoundDecl=*/nullptr, | |||
802 | // Actually canonicalizing a TemplateArgumentLoc is difficult so we | |||
803 | // simply omit the ArgsAsWritten | |||
804 | TC->getNamedConcept(), /*ArgsAsWritten=*/nullptr, NewIDC); | |||
805 | } | |||
806 | CanonParams.push_back(NewTTP); | |||
807 | } else if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
808 | QualType T = getCanonicalType(NTTP->getType()); | |||
809 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
810 | NonTypeTemplateParmDecl *Param; | |||
811 | if (NTTP->isExpandedParameterPack()) { | |||
812 | SmallVector<QualType, 2> ExpandedTypes; | |||
813 | SmallVector<TypeSourceInfo *, 2> ExpandedTInfos; | |||
814 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
815 | ExpandedTypes.push_back(getCanonicalType(NTTP->getExpansionType(I))); | |||
816 | ExpandedTInfos.push_back( | |||
817 | getTrivialTypeSourceInfo(ExpandedTypes.back())); | |||
818 | } | |||
819 | ||||
820 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
821 | SourceLocation(), | |||
822 | SourceLocation(), | |||
823 | NTTP->getDepth(), | |||
824 | NTTP->getPosition(), nullptr, | |||
825 | T, | |||
826 | TInfo, | |||
827 | ExpandedTypes, | |||
828 | ExpandedTInfos); | |||
829 | } else { | |||
830 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
831 | SourceLocation(), | |||
832 | SourceLocation(), | |||
833 | NTTP->getDepth(), | |||
834 | NTTP->getPosition(), nullptr, | |||
835 | T, | |||
836 | NTTP->isParameterPack(), | |||
837 | TInfo); | |||
838 | } | |||
839 | if (AutoType *AT = T->getContainedAutoType()) { | |||
840 | if (AT->isConstrained()) { | |||
841 | Param->setPlaceholderTypeConstraint( | |||
842 | canonicalizeImmediatelyDeclaredConstraint( | |||
843 | *this, NTTP->getPlaceholderTypeConstraint(), T)); | |||
844 | } | |||
845 | } | |||
846 | CanonParams.push_back(Param); | |||
847 | ||||
848 | } else | |||
849 | CanonParams.push_back(getCanonicalTemplateTemplateParmDecl( | |||
850 | cast<TemplateTemplateParmDecl>(*P))); | |||
851 | } | |||
852 | ||||
853 | Expr *CanonRequiresClause = nullptr; | |||
854 | if (Expr *RequiresClause = TTP->getTemplateParameters()->getRequiresClause()) | |||
855 | CanonRequiresClause = RequiresClause; | |||
856 | ||||
857 | TemplateTemplateParmDecl *CanonTTP | |||
858 | = TemplateTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
859 | SourceLocation(), TTP->getDepth(), | |||
860 | TTP->getPosition(), | |||
861 | TTP->isParameterPack(), | |||
862 | nullptr, | |||
863 | TemplateParameterList::Create(*this, SourceLocation(), | |||
864 | SourceLocation(), | |||
865 | CanonParams, | |||
866 | SourceLocation(), | |||
867 | CanonRequiresClause)); | |||
868 | ||||
869 | // Get the new insert position for the node we care about. | |||
870 | Canonical = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
871 | assert(!Canonical && "Shouldn't be in the map!")((!Canonical && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!Canonical && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 871, __PRETTY_FUNCTION__)); | |||
872 | (void)Canonical; | |||
873 | ||||
874 | // Create the canonical template template parameter entry. | |||
875 | Canonical = new (*this) CanonicalTemplateTemplateParm(CanonTTP); | |||
876 | CanonTemplateTemplateParms.InsertNode(Canonical, InsertPos); | |||
877 | return CanonTTP; | |||
878 | } | |||
879 | ||||
880 | CXXABI *ASTContext::createCXXABI(const TargetInfo &T) { | |||
881 | if (!LangOpts.CPlusPlus) return nullptr; | |||
882 | ||||
883 | switch (T.getCXXABI().getKind()) { | |||
884 | case TargetCXXABI::Fuchsia: | |||
885 | case TargetCXXABI::GenericARM: // Same as Itanium at this level | |||
886 | case TargetCXXABI::iOS: | |||
887 | case TargetCXXABI::iOS64: | |||
888 | case TargetCXXABI::WatchOS: | |||
889 | case TargetCXXABI::GenericAArch64: | |||
890 | case TargetCXXABI::GenericMIPS: | |||
891 | case TargetCXXABI::GenericItanium: | |||
892 | case TargetCXXABI::WebAssembly: | |||
893 | case TargetCXXABI::XL: | |||
894 | return CreateItaniumCXXABI(*this); | |||
895 | case TargetCXXABI::Microsoft: | |||
896 | return CreateMicrosoftCXXABI(*this); | |||
897 | } | |||
898 | llvm_unreachable("Invalid CXXABI type!")::llvm::llvm_unreachable_internal("Invalid CXXABI type!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 898); | |||
899 | } | |||
900 | ||||
901 | interp::Context &ASTContext::getInterpContext() { | |||
902 | if (!InterpContext) { | |||
903 | InterpContext.reset(new interp::Context(*this)); | |||
904 | } | |||
905 | return *InterpContext.get(); | |||
906 | } | |||
907 | ||||
908 | ParentMapContext &ASTContext::getParentMapContext() { | |||
909 | if (!ParentMapCtx) | |||
910 | ParentMapCtx.reset(new ParentMapContext(*this)); | |||
911 | return *ParentMapCtx.get(); | |||
912 | } | |||
913 | ||||
914 | static const LangASMap *getAddressSpaceMap(const TargetInfo &T, | |||
915 | const LangOptions &LOpts) { | |||
916 | if (LOpts.FakeAddressSpaceMap) { | |||
917 | // The fake address space map must have a distinct entry for each | |||
918 | // language-specific address space. | |||
919 | static const unsigned FakeAddrSpaceMap[] = { | |||
920 | 0, // Default | |||
921 | 1, // opencl_global | |||
922 | 3, // opencl_local | |||
923 | 2, // opencl_constant | |||
924 | 0, // opencl_private | |||
925 | 4, // opencl_generic | |||
926 | 5, // cuda_device | |||
927 | 6, // cuda_constant | |||
928 | 7, // cuda_shared | |||
929 | 8, // ptr32_sptr | |||
930 | 9, // ptr32_uptr | |||
931 | 10 // ptr64 | |||
932 | }; | |||
933 | return &FakeAddrSpaceMap; | |||
934 | } else { | |||
935 | return &T.getAddressSpaceMap(); | |||
936 | } | |||
937 | } | |||
938 | ||||
939 | static bool isAddrSpaceMapManglingEnabled(const TargetInfo &TI, | |||
940 | const LangOptions &LangOpts) { | |||
941 | switch (LangOpts.getAddressSpaceMapMangling()) { | |||
942 | case LangOptions::ASMM_Target: | |||
943 | return TI.useAddressSpaceMapMangling(); | |||
944 | case LangOptions::ASMM_On: | |||
945 | return true; | |||
946 | case LangOptions::ASMM_Off: | |||
947 | return false; | |||
948 | } | |||
949 | llvm_unreachable("getAddressSpaceMapMangling() doesn't cover anything.")::llvm::llvm_unreachable_internal("getAddressSpaceMapMangling() doesn't cover anything." , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 949); | |||
950 | } | |||
951 | ||||
952 | ASTContext::ASTContext(LangOptions &LOpts, SourceManager &SM, | |||
953 | IdentifierTable &idents, SelectorTable &sels, | |||
954 | Builtin::Context &builtins) | |||
955 | : ConstantArrayTypes(this_()), FunctionProtoTypes(this_()), | |||
956 | TemplateSpecializationTypes(this_()), | |||
957 | DependentTemplateSpecializationTypes(this_()), AutoTypes(this_()), | |||
958 | SubstTemplateTemplateParmPacks(this_()), | |||
959 | CanonTemplateTemplateParms(this_()), SourceMgr(SM), LangOpts(LOpts), | |||
960 | SanitizerBL(new SanitizerBlacklist(LangOpts.SanitizerBlacklistFiles, SM)), | |||
961 | XRayFilter(new XRayFunctionFilter(LangOpts.XRayAlwaysInstrumentFiles, | |||
962 | LangOpts.XRayNeverInstrumentFiles, | |||
963 | LangOpts.XRayAttrListFiles, SM)), | |||
964 | PrintingPolicy(LOpts), Idents(idents), Selectors(sels), | |||
965 | BuiltinInfo(builtins), DeclarationNames(*this), Comments(SM), | |||
966 | CommentCommandTraits(BumpAlloc, LOpts.CommentOpts), | |||
967 | CompCategories(this_()), LastSDM(nullptr, 0) { | |||
968 | TUDecl = TranslationUnitDecl::Create(*this); | |||
969 | TraversalScope = {TUDecl}; | |||
970 | } | |||
971 | ||||
972 | ASTContext::~ASTContext() { | |||
973 | // Release the DenseMaps associated with DeclContext objects. | |||
974 | // FIXME: Is this the ideal solution? | |||
975 | ReleaseDeclContextMaps(); | |||
976 | ||||
977 | // Call all of the deallocation functions on all of their targets. | |||
978 | for (auto &Pair : Deallocations) | |||
979 | (Pair.first)(Pair.second); | |||
980 | ||||
981 | // ASTRecordLayout objects in ASTRecordLayouts must always be destroyed | |||
982 | // because they can contain DenseMaps. | |||
983 | for (llvm::DenseMap<const ObjCContainerDecl*, | |||
984 | const ASTRecordLayout*>::iterator | |||
985 | I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) | |||
986 | // Increment in loop to prevent using deallocated memory. | |||
987 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
988 | R->Destroy(*this); | |||
989 | ||||
990 | for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator | |||
991 | I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { | |||
992 | // Increment in loop to prevent using deallocated memory. | |||
993 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
994 | R->Destroy(*this); | |||
995 | } | |||
996 | ||||
997 | for (llvm::DenseMap<const Decl*, AttrVec*>::iterator A = DeclAttrs.begin(), | |||
998 | AEnd = DeclAttrs.end(); | |||
999 | A != AEnd; ++A) | |||
1000 | A->second->~AttrVec(); | |||
1001 | ||||
1002 | for (const auto &Value : ModuleInitializers) | |||
1003 | Value.second->~PerModuleInitializers(); | |||
1004 | ||||
1005 | for (APValue *Value : APValueCleanups) | |||
1006 | Value->~APValue(); | |||
1007 | } | |||
1008 | ||||
1009 | void ASTContext::setTraversalScope(const std::vector<Decl *> &TopLevelDecls) { | |||
1010 | TraversalScope = TopLevelDecls; | |||
1011 | getParentMapContext().clear(); | |||
1012 | } | |||
1013 | ||||
1014 | void ASTContext::AddDeallocation(void (*Callback)(void *), void *Data) const { | |||
1015 | Deallocations.push_back({Callback, Data}); | |||
1016 | } | |||
1017 | ||||
1018 | void | |||
1019 | ASTContext::setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source) { | |||
1020 | ExternalSource = std::move(Source); | |||
1021 | } | |||
1022 | ||||
1023 | void ASTContext::PrintStats() const { | |||
1024 | llvm::errs() << "\n*** AST Context Stats:\n"; | |||
1025 | llvm::errs() << " " << Types.size() << " types total.\n"; | |||
1026 | ||||
1027 | unsigned counts[] = { | |||
1028 | #define TYPE(Name, Parent) 0, | |||
1029 | #define ABSTRACT_TYPE(Name, Parent) | |||
1030 | #include "clang/AST/TypeNodes.inc" | |||
1031 | 0 // Extra | |||
1032 | }; | |||
1033 | ||||
1034 | for (unsigned i = 0, e = Types.size(); i != e; ++i) { | |||
1035 | Type *T = Types[i]; | |||
1036 | counts[(unsigned)T->getTypeClass()]++; | |||
1037 | } | |||
1038 | ||||
1039 | unsigned Idx = 0; | |||
1040 | unsigned TotalBytes = 0; | |||
1041 | #define TYPE(Name, Parent) \ | |||
1042 | if (counts[Idx]) \ | |||
1043 | llvm::errs() << " " << counts[Idx] << " " << #Name \ | |||
1044 | << " types, " << sizeof(Name##Type) << " each " \ | |||
1045 | << "(" << counts[Idx] * sizeof(Name##Type) \ | |||
1046 | << " bytes)\n"; \ | |||
1047 | TotalBytes += counts[Idx] * sizeof(Name##Type); \ | |||
1048 | ++Idx; | |||
1049 | #define ABSTRACT_TYPE(Name, Parent) | |||
1050 | #include "clang/AST/TypeNodes.inc" | |||
1051 | ||||
1052 | llvm::errs() << "Total bytes = " << TotalBytes << "\n"; | |||
1053 | ||||
1054 | // Implicit special member functions. | |||
1055 | llvm::errs() << NumImplicitDefaultConstructorsDeclared << "/" | |||
1056 | << NumImplicitDefaultConstructors | |||
1057 | << " implicit default constructors created\n"; | |||
1058 | llvm::errs() << NumImplicitCopyConstructorsDeclared << "/" | |||
1059 | << NumImplicitCopyConstructors | |||
1060 | << " implicit copy constructors created\n"; | |||
1061 | if (getLangOpts().CPlusPlus) | |||
1062 | llvm::errs() << NumImplicitMoveConstructorsDeclared << "/" | |||
1063 | << NumImplicitMoveConstructors | |||
1064 | << " implicit move constructors created\n"; | |||
1065 | llvm::errs() << NumImplicitCopyAssignmentOperatorsDeclared << "/" | |||
1066 | << NumImplicitCopyAssignmentOperators | |||
1067 | << " implicit copy assignment operators created\n"; | |||
1068 | if (getLangOpts().CPlusPlus) | |||
1069 | llvm::errs() << NumImplicitMoveAssignmentOperatorsDeclared << "/" | |||
1070 | << NumImplicitMoveAssignmentOperators | |||
1071 | << " implicit move assignment operators created\n"; | |||
1072 | llvm::errs() << NumImplicitDestructorsDeclared << "/" | |||
1073 | << NumImplicitDestructors | |||
1074 | << " implicit destructors created\n"; | |||
1075 | ||||
1076 | if (ExternalSource) { | |||
1077 | llvm::errs() << "\n"; | |||
1078 | ExternalSource->PrintStats(); | |||
1079 | } | |||
1080 | ||||
1081 | BumpAlloc.PrintStats(); | |||
1082 | } | |||
1083 | ||||
1084 | void ASTContext::mergeDefinitionIntoModule(NamedDecl *ND, Module *M, | |||
1085 | bool NotifyListeners) { | |||
1086 | if (NotifyListeners) | |||
1087 | if (auto *Listener = getASTMutationListener()) | |||
1088 | Listener->RedefinedHiddenDefinition(ND, M); | |||
1089 | ||||
1090 | MergedDefModules[cast<NamedDecl>(ND->getCanonicalDecl())].push_back(M); | |||
1091 | } | |||
1092 | ||||
1093 | void ASTContext::deduplicateMergedDefinitonsFor(NamedDecl *ND) { | |||
1094 | auto It = MergedDefModules.find(cast<NamedDecl>(ND->getCanonicalDecl())); | |||
1095 | if (It == MergedDefModules.end()) | |||
1096 | return; | |||
1097 | ||||
1098 | auto &Merged = It->second; | |||
1099 | llvm::DenseSet<Module*> Found; | |||
1100 | for (Module *&M : Merged) | |||
1101 | if (!Found.insert(M).second) | |||
1102 | M = nullptr; | |||
1103 | Merged.erase(std::remove(Merged.begin(), Merged.end(), nullptr), Merged.end()); | |||
1104 | } | |||
1105 | ||||
1106 | void ASTContext::PerModuleInitializers::resolve(ASTContext &Ctx) { | |||
1107 | if (LazyInitializers.empty()) | |||
1108 | return; | |||
1109 | ||||
1110 | auto *Source = Ctx.getExternalSource(); | |||
1111 | assert(Source && "lazy initializers but no external source")((Source && "lazy initializers but no external source" ) ? static_cast<void> (0) : __assert_fail ("Source && \"lazy initializers but no external source\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1111, __PRETTY_FUNCTION__)); | |||
1112 | ||||
1113 | auto LazyInits = std::move(LazyInitializers); | |||
1114 | LazyInitializers.clear(); | |||
1115 | ||||
1116 | for (auto ID : LazyInits) | |||
1117 | Initializers.push_back(Source->GetExternalDecl(ID)); | |||
1118 | ||||
1119 | assert(LazyInitializers.empty() &&((LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? static_cast<void> (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1120, __PRETTY_FUNCTION__)) | |||
1120 | "GetExternalDecl for lazy module initializer added more inits")((LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? static_cast<void> (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1120, __PRETTY_FUNCTION__)); | |||
1121 | } | |||
1122 | ||||
1123 | void ASTContext::addModuleInitializer(Module *M, Decl *D) { | |||
1124 | // One special case: if we add a module initializer that imports another | |||
1125 | // module, and that module's only initializer is an ImportDecl, simplify. | |||
1126 | if (const auto *ID = dyn_cast<ImportDecl>(D)) { | |||
1127 | auto It = ModuleInitializers.find(ID->getImportedModule()); | |||
1128 | ||||
1129 | // Maybe the ImportDecl does nothing at all. (Common case.) | |||
1130 | if (It == ModuleInitializers.end()) | |||
1131 | return; | |||
1132 | ||||
1133 | // Maybe the ImportDecl only imports another ImportDecl. | |||
1134 | auto &Imported = *It->second; | |||
1135 | if (Imported.Initializers.size() + Imported.LazyInitializers.size() == 1) { | |||
1136 | Imported.resolve(*this); | |||
1137 | auto *OnlyDecl = Imported.Initializers.front(); | |||
1138 | if (isa<ImportDecl>(OnlyDecl)) | |||
1139 | D = OnlyDecl; | |||
1140 | } | |||
1141 | } | |||
1142 | ||||
1143 | auto *&Inits = ModuleInitializers[M]; | |||
1144 | if (!Inits) | |||
1145 | Inits = new (*this) PerModuleInitializers; | |||
1146 | Inits->Initializers.push_back(D); | |||
1147 | } | |||
1148 | ||||
1149 | void ASTContext::addLazyModuleInitializers(Module *M, ArrayRef<uint32_t> IDs) { | |||
1150 | auto *&Inits = ModuleInitializers[M]; | |||
1151 | if (!Inits) | |||
1152 | Inits = new (*this) PerModuleInitializers; | |||
1153 | Inits->LazyInitializers.insert(Inits->LazyInitializers.end(), | |||
1154 | IDs.begin(), IDs.end()); | |||
1155 | } | |||
1156 | ||||
1157 | ArrayRef<Decl *> ASTContext::getModuleInitializers(Module *M) { | |||
1158 | auto It = ModuleInitializers.find(M); | |||
1159 | if (It == ModuleInitializers.end()) | |||
1160 | return None; | |||
1161 | ||||
1162 | auto *Inits = It->second; | |||
1163 | Inits->resolve(*this); | |||
1164 | return Inits->Initializers; | |||
1165 | } | |||
1166 | ||||
1167 | ExternCContextDecl *ASTContext::getExternCContextDecl() const { | |||
1168 | if (!ExternCContext) | |||
1169 | ExternCContext = ExternCContextDecl::Create(*this, getTranslationUnitDecl()); | |||
1170 | ||||
1171 | return ExternCContext; | |||
1172 | } | |||
1173 | ||||
1174 | BuiltinTemplateDecl * | |||
1175 | ASTContext::buildBuiltinTemplateDecl(BuiltinTemplateKind BTK, | |||
1176 | const IdentifierInfo *II) const { | |||
1177 | auto *BuiltinTemplate = BuiltinTemplateDecl::Create(*this, TUDecl, II, BTK); | |||
1178 | BuiltinTemplate->setImplicit(); | |||
1179 | TUDecl->addDecl(BuiltinTemplate); | |||
1180 | ||||
1181 | return BuiltinTemplate; | |||
1182 | } | |||
1183 | ||||
1184 | BuiltinTemplateDecl * | |||
1185 | ASTContext::getMakeIntegerSeqDecl() const { | |||
1186 | if (!MakeIntegerSeqDecl) | |||
1187 | MakeIntegerSeqDecl = buildBuiltinTemplateDecl(BTK__make_integer_seq, | |||
1188 | getMakeIntegerSeqName()); | |||
1189 | return MakeIntegerSeqDecl; | |||
1190 | } | |||
1191 | ||||
1192 | BuiltinTemplateDecl * | |||
1193 | ASTContext::getTypePackElementDecl() const { | |||
1194 | if (!TypePackElementDecl) | |||
1195 | TypePackElementDecl = buildBuiltinTemplateDecl(BTK__type_pack_element, | |||
1196 | getTypePackElementName()); | |||
1197 | return TypePackElementDecl; | |||
1198 | } | |||
1199 | ||||
1200 | RecordDecl *ASTContext::buildImplicitRecord(StringRef Name, | |||
1201 | RecordDecl::TagKind TK) const { | |||
1202 | SourceLocation Loc; | |||
1203 | RecordDecl *NewDecl; | |||
1204 | if (getLangOpts().CPlusPlus) | |||
1205 | NewDecl = CXXRecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, | |||
1206 | Loc, &Idents.get(Name)); | |||
1207 | else | |||
1208 | NewDecl = RecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, Loc, | |||
1209 | &Idents.get(Name)); | |||
1210 | NewDecl->setImplicit(); | |||
1211 | NewDecl->addAttr(TypeVisibilityAttr::CreateImplicit( | |||
1212 | const_cast<ASTContext &>(*this), TypeVisibilityAttr::Default)); | |||
1213 | return NewDecl; | |||
1214 | } | |||
1215 | ||||
1216 | TypedefDecl *ASTContext::buildImplicitTypedef(QualType T, | |||
1217 | StringRef Name) const { | |||
1218 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
1219 | TypedefDecl *NewDecl = TypedefDecl::Create( | |||
1220 | const_cast<ASTContext &>(*this), getTranslationUnitDecl(), | |||
1221 | SourceLocation(), SourceLocation(), &Idents.get(Name), TInfo); | |||
1222 | NewDecl->setImplicit(); | |||
1223 | return NewDecl; | |||
1224 | } | |||
1225 | ||||
1226 | TypedefDecl *ASTContext::getInt128Decl() const { | |||
1227 | if (!Int128Decl) | |||
1228 | Int128Decl = buildImplicitTypedef(Int128Ty, "__int128_t"); | |||
1229 | return Int128Decl; | |||
1230 | } | |||
1231 | ||||
1232 | TypedefDecl *ASTContext::getUInt128Decl() const { | |||
1233 | if (!UInt128Decl) | |||
1234 | UInt128Decl = buildImplicitTypedef(UnsignedInt128Ty, "__uint128_t"); | |||
1235 | return UInt128Decl; | |||
1236 | } | |||
1237 | ||||
1238 | void ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { | |||
1239 | auto *Ty = new (*this, TypeAlignment) BuiltinType(K); | |||
1240 | R = CanQualType::CreateUnsafe(QualType(Ty, 0)); | |||
1241 | Types.push_back(Ty); | |||
1242 | } | |||
1243 | ||||
1244 | void ASTContext::InitBuiltinTypes(const TargetInfo &Target, | |||
1245 | const TargetInfo *AuxTarget) { | |||
1246 | assert((!this->Target || this->Target == &Target) &&(((!this->Target || this->Target == &Target) && "Incorrect target reinitialization") ? static_cast<void> (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1247, __PRETTY_FUNCTION__)) | |||
1247 | "Incorrect target reinitialization")(((!this->Target || this->Target == &Target) && "Incorrect target reinitialization") ? static_cast<void> (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1247, __PRETTY_FUNCTION__)); | |||
1248 | assert(VoidTy.isNull() && "Context reinitialized?")((VoidTy.isNull() && "Context reinitialized?") ? static_cast <void> (0) : __assert_fail ("VoidTy.isNull() && \"Context reinitialized?\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1248, __PRETTY_FUNCTION__)); | |||
1249 | ||||
1250 | this->Target = &Target; | |||
1251 | this->AuxTarget = AuxTarget; | |||
1252 | ||||
1253 | ABI.reset(createCXXABI(Target)); | |||
1254 | AddrSpaceMap = getAddressSpaceMap(Target, LangOpts); | |||
1255 | AddrSpaceMapMangling = isAddrSpaceMapManglingEnabled(Target, LangOpts); | |||
1256 | ||||
1257 | // C99 6.2.5p19. | |||
1258 | InitBuiltinType(VoidTy, BuiltinType::Void); | |||
1259 | ||||
1260 | // C99 6.2.5p2. | |||
1261 | InitBuiltinType(BoolTy, BuiltinType::Bool); | |||
1262 | // C99 6.2.5p3. | |||
1263 | if (LangOpts.CharIsSigned) | |||
1264 | InitBuiltinType(CharTy, BuiltinType::Char_S); | |||
1265 | else | |||
1266 | InitBuiltinType(CharTy, BuiltinType::Char_U); | |||
1267 | // C99 6.2.5p4. | |||
1268 | InitBuiltinType(SignedCharTy, BuiltinType::SChar); | |||
1269 | InitBuiltinType(ShortTy, BuiltinType::Short); | |||
1270 | InitBuiltinType(IntTy, BuiltinType::Int); | |||
1271 | InitBuiltinType(LongTy, BuiltinType::Long); | |||
1272 | InitBuiltinType(LongLongTy, BuiltinType::LongLong); | |||
1273 | ||||
1274 | // C99 6.2.5p6. | |||
1275 | InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); | |||
1276 | InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); | |||
1277 | InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); | |||
1278 | InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); | |||
1279 | InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); | |||
1280 | ||||
1281 | // C99 6.2.5p10. | |||
1282 | InitBuiltinType(FloatTy, BuiltinType::Float); | |||
1283 | InitBuiltinType(DoubleTy, BuiltinType::Double); | |||
1284 | InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); | |||
1285 | ||||
1286 | // GNU extension, __float128 for IEEE quadruple precision | |||
1287 | InitBuiltinType(Float128Ty, BuiltinType::Float128); | |||
1288 | ||||
1289 | // C11 extension ISO/IEC TS 18661-3 | |||
1290 | InitBuiltinType(Float16Ty, BuiltinType::Float16); | |||
1291 | ||||
1292 | // ISO/IEC JTC1 SC22 WG14 N1169 Extension | |||
1293 | InitBuiltinType(ShortAccumTy, BuiltinType::ShortAccum); | |||
1294 | InitBuiltinType(AccumTy, BuiltinType::Accum); | |||
1295 | InitBuiltinType(LongAccumTy, BuiltinType::LongAccum); | |||
1296 | InitBuiltinType(UnsignedShortAccumTy, BuiltinType::UShortAccum); | |||
1297 | InitBuiltinType(UnsignedAccumTy, BuiltinType::UAccum); | |||
1298 | InitBuiltinType(UnsignedLongAccumTy, BuiltinType::ULongAccum); | |||
1299 | InitBuiltinType(ShortFractTy, BuiltinType::ShortFract); | |||
1300 | InitBuiltinType(FractTy, BuiltinType::Fract); | |||
1301 | InitBuiltinType(LongFractTy, BuiltinType::LongFract); | |||
1302 | InitBuiltinType(UnsignedShortFractTy, BuiltinType::UShortFract); | |||
1303 | InitBuiltinType(UnsignedFractTy, BuiltinType::UFract); | |||
1304 | InitBuiltinType(UnsignedLongFractTy, BuiltinType::ULongFract); | |||
1305 | InitBuiltinType(SatShortAccumTy, BuiltinType::SatShortAccum); | |||
1306 | InitBuiltinType(SatAccumTy, BuiltinType::SatAccum); | |||
1307 | InitBuiltinType(SatLongAccumTy, BuiltinType::SatLongAccum); | |||
1308 | InitBuiltinType(SatUnsignedShortAccumTy, BuiltinType::SatUShortAccum); | |||
1309 | InitBuiltinType(SatUnsignedAccumTy, BuiltinType::SatUAccum); | |||
1310 | InitBuiltinType(SatUnsignedLongAccumTy, BuiltinType::SatULongAccum); | |||
1311 | InitBuiltinType(SatShortFractTy, BuiltinType::SatShortFract); | |||
1312 | InitBuiltinType(SatFractTy, BuiltinType::SatFract); | |||
1313 | InitBuiltinType(SatLongFractTy, BuiltinType::SatLongFract); | |||
1314 | InitBuiltinType(SatUnsignedShortFractTy, BuiltinType::SatUShortFract); | |||
1315 | InitBuiltinType(SatUnsignedFractTy, BuiltinType::SatUFract); | |||
1316 | InitBuiltinType(SatUnsignedLongFractTy, BuiltinType::SatULongFract); | |||
1317 | ||||
1318 | // GNU extension, 128-bit integers. | |||
1319 | InitBuiltinType(Int128Ty, BuiltinType::Int128); | |||
1320 | InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); | |||
1321 | ||||
1322 | // C++ 3.9.1p5 | |||
1323 | if (TargetInfo::isTypeSigned(Target.getWCharType())) | |||
1324 | InitBuiltinType(WCharTy, BuiltinType::WChar_S); | |||
1325 | else // -fshort-wchar makes wchar_t be unsigned. | |||
1326 | InitBuiltinType(WCharTy, BuiltinType::WChar_U); | |||
1327 | if (LangOpts.CPlusPlus && LangOpts.WChar) | |||
1328 | WideCharTy = WCharTy; | |||
1329 | else { | |||
1330 | // C99 (or C++ using -fno-wchar). | |||
1331 | WideCharTy = getFromTargetType(Target.getWCharType()); | |||
1332 | } | |||
1333 | ||||
1334 | WIntTy = getFromTargetType(Target.getWIntType()); | |||
1335 | ||||
1336 | // C++20 (proposed) | |||
1337 | InitBuiltinType(Char8Ty, BuiltinType::Char8); | |||
1338 | ||||
1339 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
1340 | InitBuiltinType(Char16Ty, BuiltinType::Char16); | |||
1341 | else // C99 | |||
1342 | Char16Ty = getFromTargetType(Target.getChar16Type()); | |||
1343 | ||||
1344 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
1345 | InitBuiltinType(Char32Ty, BuiltinType::Char32); | |||
1346 | else // C99 | |||
1347 | Char32Ty = getFromTargetType(Target.getChar32Type()); | |||
1348 | ||||
1349 | // Placeholder type for type-dependent expressions whose type is | |||
1350 | // completely unknown. No code should ever check a type against | |||
1351 | // DependentTy and users should never see it; however, it is here to | |||
1352 | // help diagnose failures to properly check for type-dependent | |||
1353 | // expressions. | |||
1354 | InitBuiltinType(DependentTy, BuiltinType::Dependent); | |||
1355 | ||||
1356 | // Placeholder type for functions. | |||
1357 | InitBuiltinType(OverloadTy, BuiltinType::Overload); | |||
1358 | ||||
1359 | // Placeholder type for bound members. | |||
1360 | InitBuiltinType(BoundMemberTy, BuiltinType::BoundMember); | |||
1361 | ||||
1362 | // Placeholder type for pseudo-objects. | |||
1363 | InitBuiltinType(PseudoObjectTy, BuiltinType::PseudoObject); | |||
1364 | ||||
1365 | // "any" type; useful for debugger-like clients. | |||
1366 | InitBuiltinType(UnknownAnyTy, BuiltinType::UnknownAny); | |||
1367 | ||||
1368 | // Placeholder type for unbridged ARC casts. | |||
1369 | InitBuiltinType(ARCUnbridgedCastTy, BuiltinType::ARCUnbridgedCast); | |||
1370 | ||||
1371 | // Placeholder type for builtin functions. | |||
1372 | InitBuiltinType(BuiltinFnTy, BuiltinType::BuiltinFn); | |||
1373 | ||||
1374 | // Placeholder type for OMP array sections. | |||
1375 | if (LangOpts.OpenMP) | |||
1376 | InitBuiltinType(OMPArraySectionTy, BuiltinType::OMPArraySection); | |||
1377 | ||||
1378 | // C99 6.2.5p11. | |||
1379 | FloatComplexTy = getComplexType(FloatTy); | |||
1380 | DoubleComplexTy = getComplexType(DoubleTy); | |||
1381 | LongDoubleComplexTy = getComplexType(LongDoubleTy); | |||
1382 | Float128ComplexTy = getComplexType(Float128Ty); | |||
1383 | ||||
1384 | // Builtin types for 'id', 'Class', and 'SEL'. | |||
1385 | InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); | |||
1386 | InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); | |||
1387 | InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); | |||
1388 | ||||
1389 | if (LangOpts.OpenCL) { | |||
1390 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
1391 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1392 | #include "clang/Basic/OpenCLImageTypes.def" | |||
1393 | ||||
1394 | InitBuiltinType(OCLSamplerTy, BuiltinType::OCLSampler); | |||
1395 | InitBuiltinType(OCLEventTy, BuiltinType::OCLEvent); | |||
1396 | InitBuiltinType(OCLClkEventTy, BuiltinType::OCLClkEvent); | |||
1397 | InitBuiltinType(OCLQueueTy, BuiltinType::OCLQueue); | |||
1398 | InitBuiltinType(OCLReserveIDTy, BuiltinType::OCLReserveID); | |||
1399 | ||||
1400 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
1401 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1402 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
1403 | } | |||
1404 | ||||
1405 | if (Target.hasAArch64SVETypes()) { | |||
1406 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
1407 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1408 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
1409 | } | |||
1410 | ||||
1411 | // Builtin type for __objc_yes and __objc_no | |||
1412 | ObjCBuiltinBoolTy = (Target.useSignedCharForObjCBool() ? | |||
1413 | SignedCharTy : BoolTy); | |||
1414 | ||||
1415 | ObjCConstantStringType = QualType(); | |||
1416 | ||||
1417 | ObjCSuperType = QualType(); | |||
1418 | ||||
1419 | // void * type | |||
1420 | if (LangOpts.OpenCLVersion >= 200) { | |||
1421 | auto Q = VoidTy.getQualifiers(); | |||
1422 | Q.setAddressSpace(LangAS::opencl_generic); | |||
1423 | VoidPtrTy = getPointerType(getCanonicalType( | |||
1424 | getQualifiedType(VoidTy.getUnqualifiedType(), Q))); | |||
1425 | } else { | |||
1426 | VoidPtrTy = getPointerType(VoidTy); | |||
1427 | } | |||
1428 | ||||
1429 | // nullptr type (C++0x 2.14.7) | |||
1430 | InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); | |||
1431 | ||||
1432 | // half type (OpenCL 6.1.1.1) / ARM NEON __fp16 | |||
1433 | InitBuiltinType(HalfTy, BuiltinType::Half); | |||
1434 | ||||
1435 | // Builtin type used to help define __builtin_va_list. | |||
1436 | VaListTagDecl = nullptr; | |||
1437 | } | |||
1438 | ||||
1439 | DiagnosticsEngine &ASTContext::getDiagnostics() const { | |||
1440 | return SourceMgr.getDiagnostics(); | |||
1441 | } | |||
1442 | ||||
1443 | AttrVec& ASTContext::getDeclAttrs(const Decl *D) { | |||
1444 | AttrVec *&Result = DeclAttrs[D]; | |||
1445 | if (!Result) { | |||
1446 | void *Mem = Allocate(sizeof(AttrVec)); | |||
1447 | Result = new (Mem) AttrVec; | |||
1448 | } | |||
1449 | ||||
1450 | return *Result; | |||
1451 | } | |||
1452 | ||||
1453 | /// Erase the attributes corresponding to the given declaration. | |||
1454 | void ASTContext::eraseDeclAttrs(const Decl *D) { | |||
1455 | llvm::DenseMap<const Decl*, AttrVec*>::iterator Pos = DeclAttrs.find(D); | |||
1456 | if (Pos != DeclAttrs.end()) { | |||
1457 | Pos->second->~AttrVec(); | |||
1458 | DeclAttrs.erase(Pos); | |||
1459 | } | |||
1460 | } | |||
1461 | ||||
1462 | // FIXME: Remove ? | |||
1463 | MemberSpecializationInfo * | |||
1464 | ASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { | |||
1465 | assert(Var->isStaticDataMember() && "Not a static data member")((Var->isStaticDataMember() && "Not a static data member" ) ? static_cast<void> (0) : __assert_fail ("Var->isStaticDataMember() && \"Not a static data member\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1465, __PRETTY_FUNCTION__)); | |||
1466 | return getTemplateOrSpecializationInfo(Var) | |||
1467 | .dyn_cast<MemberSpecializationInfo *>(); | |||
1468 | } | |||
1469 | ||||
1470 | ASTContext::TemplateOrSpecializationInfo | |||
1471 | ASTContext::getTemplateOrSpecializationInfo(const VarDecl *Var) { | |||
1472 | llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>::iterator Pos = | |||
1473 | TemplateOrInstantiation.find(Var); | |||
1474 | if (Pos == TemplateOrInstantiation.end()) | |||
1475 | return {}; | |||
1476 | ||||
1477 | return Pos->second; | |||
1478 | } | |||
1479 | ||||
1480 | void | |||
1481 | ASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, | |||
1482 | TemplateSpecializationKind TSK, | |||
1483 | SourceLocation PointOfInstantiation) { | |||
1484 | assert(Inst->isStaticDataMember() && "Not a static data member")((Inst->isStaticDataMember() && "Not a static data member" ) ? static_cast<void> (0) : __assert_fail ("Inst->isStaticDataMember() && \"Not a static data member\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1484, __PRETTY_FUNCTION__)); | |||
1485 | assert(Tmpl->isStaticDataMember() && "Not a static data member")((Tmpl->isStaticDataMember() && "Not a static data member" ) ? static_cast<void> (0) : __assert_fail ("Tmpl->isStaticDataMember() && \"Not a static data member\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1485, __PRETTY_FUNCTION__)); | |||
1486 | setTemplateOrSpecializationInfo(Inst, new (*this) MemberSpecializationInfo( | |||
1487 | Tmpl, TSK, PointOfInstantiation)); | |||
1488 | } | |||
1489 | ||||
1490 | void | |||
1491 | ASTContext::setTemplateOrSpecializationInfo(VarDecl *Inst, | |||
1492 | TemplateOrSpecializationInfo TSI) { | |||
1493 | assert(!TemplateOrInstantiation[Inst] &&((!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1494, __PRETTY_FUNCTION__)) | |||
1494 | "Already noted what the variable was instantiated from")((!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1494, __PRETTY_FUNCTION__)); | |||
1495 | TemplateOrInstantiation[Inst] = TSI; | |||
1496 | } | |||
1497 | ||||
1498 | NamedDecl * | |||
1499 | ASTContext::getInstantiatedFromUsingDecl(NamedDecl *UUD) { | |||
1500 | auto Pos = InstantiatedFromUsingDecl.find(UUD); | |||
1501 | if (Pos == InstantiatedFromUsingDecl.end()) | |||
1502 | return nullptr; | |||
1503 | ||||
1504 | return Pos->second; | |||
1505 | } | |||
1506 | ||||
1507 | void | |||
1508 | ASTContext::setInstantiatedFromUsingDecl(NamedDecl *Inst, NamedDecl *Pattern) { | |||
1509 | assert((isa<UsingDecl>(Pattern) ||(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1512, __PRETTY_FUNCTION__)) | |||
1510 | isa<UnresolvedUsingValueDecl>(Pattern) ||(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1512, __PRETTY_FUNCTION__)) | |||
1511 | isa<UnresolvedUsingTypenameDecl>(Pattern)) &&(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1512, __PRETTY_FUNCTION__)) | |||
1512 | "pattern decl is not a using decl")(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1512, __PRETTY_FUNCTION__)); | |||
1513 | assert((isa<UsingDecl>(Inst) ||(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1516, __PRETTY_FUNCTION__)) | |||
1514 | isa<UnresolvedUsingValueDecl>(Inst) ||(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1516, __PRETTY_FUNCTION__)) | |||
1515 | isa<UnresolvedUsingTypenameDecl>(Inst)) &&(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1516, __PRETTY_FUNCTION__)) | |||
1516 | "instantiation did not produce a using decl")(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1516, __PRETTY_FUNCTION__)); | |||
1517 | assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists")((!InstantiatedFromUsingDecl[Inst] && "pattern already exists" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUsingDecl[Inst] && \"pattern already exists\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1517, __PRETTY_FUNCTION__)); | |||
1518 | InstantiatedFromUsingDecl[Inst] = Pattern; | |||
1519 | } | |||
1520 | ||||
1521 | UsingShadowDecl * | |||
1522 | ASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { | |||
1523 | llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos | |||
1524 | = InstantiatedFromUsingShadowDecl.find(Inst); | |||
1525 | if (Pos == InstantiatedFromUsingShadowDecl.end()) | |||
1526 | return nullptr; | |||
1527 | ||||
1528 | return Pos->second; | |||
1529 | } | |||
1530 | ||||
1531 | void | |||
1532 | ASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, | |||
1533 | UsingShadowDecl *Pattern) { | |||
1534 | assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists")((!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUsingShadowDecl[Inst] && \"pattern already exists\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1534, __PRETTY_FUNCTION__)); | |||
1535 | InstantiatedFromUsingShadowDecl[Inst] = Pattern; | |||
1536 | } | |||
1537 | ||||
1538 | FieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { | |||
1539 | llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos | |||
1540 | = InstantiatedFromUnnamedFieldDecl.find(Field); | |||
1541 | if (Pos == InstantiatedFromUnnamedFieldDecl.end()) | |||
1542 | return nullptr; | |||
1543 | ||||
1544 | return Pos->second; | |||
1545 | } | |||
1546 | ||||
1547 | void ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, | |||
1548 | FieldDecl *Tmpl) { | |||
1549 | assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed")((!Inst->getDeclName() && "Instantiated field decl is not unnamed" ) ? static_cast<void> (0) : __assert_fail ("!Inst->getDeclName() && \"Instantiated field decl is not unnamed\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1549, __PRETTY_FUNCTION__)); | |||
1550 | assert(!Tmpl->getDeclName() && "Template field decl is not unnamed")((!Tmpl->getDeclName() && "Template field decl is not unnamed" ) ? static_cast<void> (0) : __assert_fail ("!Tmpl->getDeclName() && \"Template field decl is not unnamed\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1550, __PRETTY_FUNCTION__)); | |||
1551 | assert(!InstantiatedFromUnnamedFieldDecl[Inst] &&((!InstantiatedFromUnnamedFieldDecl[Inst] && "Already noted what unnamed field was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1552, __PRETTY_FUNCTION__)) | |||
1552 | "Already noted what unnamed field was instantiated from")((!InstantiatedFromUnnamedFieldDecl[Inst] && "Already noted what unnamed field was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1552, __PRETTY_FUNCTION__)); | |||
1553 | ||||
1554 | InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; | |||
1555 | } | |||
1556 | ||||
1557 | ASTContext::overridden_cxx_method_iterator | |||
1558 | ASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { | |||
1559 | return overridden_methods(Method).begin(); | |||
1560 | } | |||
1561 | ||||
1562 | ASTContext::overridden_cxx_method_iterator | |||
1563 | ASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { | |||
1564 | return overridden_methods(Method).end(); | |||
1565 | } | |||
1566 | ||||
1567 | unsigned | |||
1568 | ASTContext::overridden_methods_size(const CXXMethodDecl *Method) const { | |||
1569 | auto Range = overridden_methods(Method); | |||
1570 | return Range.end() - Range.begin(); | |||
1571 | } | |||
1572 | ||||
1573 | ASTContext::overridden_method_range | |||
1574 | ASTContext::overridden_methods(const CXXMethodDecl *Method) const { | |||
1575 | llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos = | |||
1576 | OverriddenMethods.find(Method->getCanonicalDecl()); | |||
1577 | if (Pos == OverriddenMethods.end()) | |||
1578 | return overridden_method_range(nullptr, nullptr); | |||
1579 | return overridden_method_range(Pos->second.begin(), Pos->second.end()); | |||
1580 | } | |||
1581 | ||||
1582 | void ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, | |||
1583 | const CXXMethodDecl *Overridden) { | |||
1584 | assert(Method->isCanonicalDecl() && Overridden->isCanonicalDecl())((Method->isCanonicalDecl() && Overridden->isCanonicalDecl ()) ? static_cast<void> (0) : __assert_fail ("Method->isCanonicalDecl() && Overridden->isCanonicalDecl()" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1584, __PRETTY_FUNCTION__)); | |||
1585 | OverriddenMethods[Method].push_back(Overridden); | |||
1586 | } | |||
1587 | ||||
1588 | void ASTContext::getOverriddenMethods( | |||
1589 | const NamedDecl *D, | |||
1590 | SmallVectorImpl<const NamedDecl *> &Overridden) const { | |||
1591 | assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1591, __PRETTY_FUNCTION__)); | |||
1592 | ||||
1593 | if (const auto *CXXMethod = dyn_cast<CXXMethodDecl>(D)) { | |||
1594 | Overridden.append(overridden_methods_begin(CXXMethod), | |||
1595 | overridden_methods_end(CXXMethod)); | |||
1596 | return; | |||
1597 | } | |||
1598 | ||||
1599 | const auto *Method = dyn_cast<ObjCMethodDecl>(D); | |||
1600 | if (!Method) | |||
1601 | return; | |||
1602 | ||||
1603 | SmallVector<const ObjCMethodDecl *, 8> OverDecls; | |||
1604 | Method->getOverriddenMethods(OverDecls); | |||
1605 | Overridden.append(OverDecls.begin(), OverDecls.end()); | |||
1606 | } | |||
1607 | ||||
1608 | void ASTContext::addedLocalImportDecl(ImportDecl *Import) { | |||
1609 | assert(!Import->NextLocalImport && "Import declaration already in the chain")((!Import->NextLocalImport && "Import declaration already in the chain" ) ? static_cast<void> (0) : __assert_fail ("!Import->NextLocalImport && \"Import declaration already in the chain\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1609, __PRETTY_FUNCTION__)); | |||
1610 | assert(!Import->isFromASTFile() && "Non-local import declaration")((!Import->isFromASTFile() && "Non-local import declaration" ) ? static_cast<void> (0) : __assert_fail ("!Import->isFromASTFile() && \"Non-local import declaration\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1610, __PRETTY_FUNCTION__)); | |||
1611 | if (!FirstLocalImport) { | |||
1612 | FirstLocalImport = Import; | |||
1613 | LastLocalImport = Import; | |||
1614 | return; | |||
1615 | } | |||
1616 | ||||
1617 | LastLocalImport->NextLocalImport = Import; | |||
1618 | LastLocalImport = Import; | |||
1619 | } | |||
1620 | ||||
1621 | //===----------------------------------------------------------------------===// | |||
1622 | // Type Sizing and Analysis | |||
1623 | //===----------------------------------------------------------------------===// | |||
1624 | ||||
1625 | /// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified | |||
1626 | /// scalar floating point type. | |||
1627 | const llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { | |||
1628 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
1629 | default: | |||
1630 | llvm_unreachable("Not a floating point type!")::llvm::llvm_unreachable_internal("Not a floating point type!" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1630); | |||
1631 | case BuiltinType::Float16: | |||
1632 | case BuiltinType::Half: | |||
1633 | return Target->getHalfFormat(); | |||
1634 | case BuiltinType::Float: return Target->getFloatFormat(); | |||
1635 | case BuiltinType::Double: return Target->getDoubleFormat(); | |||
1636 | case BuiltinType::LongDouble: | |||
1637 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
1638 | return AuxTarget->getLongDoubleFormat(); | |||
1639 | return Target->getLongDoubleFormat(); | |||
1640 | case BuiltinType::Float128: | |||
1641 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
1642 | return AuxTarget->getFloat128Format(); | |||
1643 | return Target->getFloat128Format(); | |||
1644 | } | |||
1645 | } | |||
1646 | ||||
1647 | CharUnits ASTContext::getDeclAlign(const Decl *D, bool ForAlignof) const { | |||
1648 | unsigned Align = Target->getCharWidth(); | |||
1649 | ||||
1650 | bool UseAlignAttrOnly = false; | |||
1651 | if (unsigned AlignFromAttr = D->getMaxAlignment()) { | |||
1652 | Align = AlignFromAttr; | |||
1653 | ||||
1654 | // __attribute__((aligned)) can increase or decrease alignment | |||
1655 | // *except* on a struct or struct member, where it only increases | |||
1656 | // alignment unless 'packed' is also specified. | |||
1657 | // | |||
1658 | // It is an error for alignas to decrease alignment, so we can | |||
1659 | // ignore that possibility; Sema should diagnose it. | |||
1660 | if (isa<FieldDecl>(D)) { | |||
1661 | UseAlignAttrOnly = D->hasAttr<PackedAttr>() || | |||
1662 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
1663 | } else { | |||
1664 | UseAlignAttrOnly = true; | |||
1665 | } | |||
1666 | } | |||
1667 | else if (isa<FieldDecl>(D)) | |||
1668 | UseAlignAttrOnly = | |||
1669 | D->hasAttr<PackedAttr>() || | |||
1670 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
1671 | ||||
1672 | // If we're using the align attribute only, just ignore everything | |||
1673 | // else about the declaration and its type. | |||
1674 | if (UseAlignAttrOnly) { | |||
1675 | // do nothing | |||
1676 | } else if (const auto *VD = dyn_cast<ValueDecl>(D)) { | |||
1677 | QualType T = VD->getType(); | |||
1678 | if (const auto *RT = T->getAs<ReferenceType>()) { | |||
1679 | if (ForAlignof) | |||
1680 | T = RT->getPointeeType(); | |||
1681 | else | |||
1682 | T = getPointerType(RT->getPointeeType()); | |||
1683 | } | |||
1684 | QualType BaseT = getBaseElementType(T); | |||
1685 | if (T->isFunctionType()) | |||
1686 | Align = getTypeInfoImpl(T.getTypePtr()).Align; | |||
1687 | else if (!BaseT->isIncompleteType()) { | |||
1688 | // Adjust alignments of declarations with array type by the | |||
1689 | // large-array alignment on the target. | |||
1690 | if (const ArrayType *arrayType = getAsArrayType(T)) { | |||
1691 | unsigned MinWidth = Target->getLargeArrayMinWidth(); | |||
1692 | if (!ForAlignof && MinWidth) { | |||
1693 | if (isa<VariableArrayType>(arrayType)) | |||
1694 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
1695 | else if (isa<ConstantArrayType>(arrayType) && | |||
1696 | MinWidth <= getTypeSize(cast<ConstantArrayType>(arrayType))) | |||
1697 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
1698 | } | |||
1699 | } | |||
1700 | Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); | |||
1701 | if (BaseT.getQualifiers().hasUnaligned()) | |||
1702 | Align = Target->getCharWidth(); | |||
1703 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
1704 | if (VD->hasGlobalStorage() && !ForAlignof) { | |||
1705 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
1706 | Align = std::max(Align, getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
1707 | } | |||
1708 | } | |||
1709 | } | |||
1710 | ||||
1711 | // Fields can be subject to extra alignment constraints, like if | |||
1712 | // the field is packed, the struct is packed, or the struct has a | |||
1713 | // a max-field-alignment constraint (#pragma pack). So calculate | |||
1714 | // the actual alignment of the field within the struct, and then | |||
1715 | // (as we're expected to) constrain that by the alignment of the type. | |||
1716 | if (const auto *Field = dyn_cast<FieldDecl>(VD)) { | |||
1717 | const RecordDecl *Parent = Field->getParent(); | |||
1718 | // We can only produce a sensible answer if the record is valid. | |||
1719 | if (!Parent->isInvalidDecl()) { | |||
1720 | const ASTRecordLayout &Layout = getASTRecordLayout(Parent); | |||
1721 | ||||
1722 | // Start with the record's overall alignment. | |||
1723 | unsigned FieldAlign = toBits(Layout.getAlignment()); | |||
1724 | ||||
1725 | // Use the GCD of that and the offset within the record. | |||
1726 | uint64_t Offset = Layout.getFieldOffset(Field->getFieldIndex()); | |||
1727 | if (Offset > 0) { | |||
1728 | // Alignment is always a power of 2, so the GCD will be a power of 2, | |||
1729 | // which means we get to do this crazy thing instead of Euclid's. | |||
1730 | uint64_t LowBitOfOffset = Offset & (~Offset + 1); | |||
1731 | if (LowBitOfOffset < FieldAlign) | |||
1732 | FieldAlign = static_cast<unsigned>(LowBitOfOffset); | |||
1733 | } | |||
1734 | ||||
1735 | Align = std::min(Align, FieldAlign); | |||
1736 | } | |||
1737 | } | |||
1738 | } | |||
1739 | ||||
1740 | return toCharUnitsFromBits(Align); | |||
1741 | } | |||
1742 | ||||
1743 | CharUnits ASTContext::getExnObjectAlignment() const { | |||
1744 | return toCharUnitsFromBits(Target->getExnObjectAlignment()); | |||
1745 | } | |||
1746 | ||||
1747 | // getTypeInfoDataSizeInChars - Return the size of a type, in | |||
1748 | // chars. If the type is a record, its data size is returned. This is | |||
1749 | // the size of the memcpy that's performed when assigning this type | |||
1750 | // using a trivial copy/move assignment operator. | |||
1751 | std::pair<CharUnits, CharUnits> | |||
1752 | ASTContext::getTypeInfoDataSizeInChars(QualType T) const { | |||
1753 | std::pair<CharUnits, CharUnits> sizeAndAlign = getTypeInfoInChars(T); | |||
1754 | ||||
1755 | // In C++, objects can sometimes be allocated into the tail padding | |||
1756 | // of a base-class subobject. We decide whether that's possible | |||
1757 | // during class layout, so here we can just trust the layout results. | |||
1758 | if (getLangOpts().CPlusPlus) { | |||
1759 | if (const auto *RT = T->getAs<RecordType>()) { | |||
1760 | const ASTRecordLayout &layout = getASTRecordLayout(RT->getDecl()); | |||
1761 | sizeAndAlign.first = layout.getDataSize(); | |||
1762 | } | |||
1763 | } | |||
1764 | ||||
1765 | return sizeAndAlign; | |||
1766 | } | |||
1767 | ||||
1768 | /// getConstantArrayInfoInChars - Performing the computation in CharUnits | |||
1769 | /// instead of in bits prevents overflowing the uint64_t for some large arrays. | |||
1770 | std::pair<CharUnits, CharUnits> | |||
1771 | static getConstantArrayInfoInChars(const ASTContext &Context, | |||
1772 | const ConstantArrayType *CAT) { | |||
1773 | std::pair<CharUnits, CharUnits> EltInfo = | |||
1774 | Context.getTypeInfoInChars(CAT->getElementType()); | |||
1775 | uint64_t Size = CAT->getSize().getZExtValue(); | |||
1776 | assert((Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity()) <=(((Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity ()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation" ) ? static_cast<void> (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1778, __PRETTY_FUNCTION__)) | |||
1777 | (uint64_t)(-1)/Size) &&(((Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity ()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation" ) ? static_cast<void> (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1778, __PRETTY_FUNCTION__)) | |||
1778 | "Overflow in array type char size evaluation")(((Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity ()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation" ) ? static_cast<void> (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.first.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1778, __PRETTY_FUNCTION__)); | |||
1779 | uint64_t Width = EltInfo.first.getQuantity() * Size; | |||
1780 | unsigned Align = EltInfo.second.getQuantity(); | |||
1781 | if (!Context.getTargetInfo().getCXXABI().isMicrosoft() || | |||
1782 | Context.getTargetInfo().getPointerWidth(0) == 64) | |||
1783 | Width = llvm::alignTo(Width, Align); | |||
1784 | return std::make_pair(CharUnits::fromQuantity(Width), | |||
1785 | CharUnits::fromQuantity(Align)); | |||
1786 | } | |||
1787 | ||||
1788 | std::pair<CharUnits, CharUnits> | |||
1789 | ASTContext::getTypeInfoInChars(const Type *T) const { | |||
1790 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
1791 | return getConstantArrayInfoInChars(*this, CAT); | |||
1792 | TypeInfo Info = getTypeInfo(T); | |||
1793 | return std::make_pair(toCharUnitsFromBits(Info.Width), | |||
1794 | toCharUnitsFromBits(Info.Align)); | |||
1795 | } | |||
1796 | ||||
1797 | std::pair<CharUnits, CharUnits> | |||
1798 | ASTContext::getTypeInfoInChars(QualType T) const { | |||
1799 | return getTypeInfoInChars(T.getTypePtr()); | |||
1800 | } | |||
1801 | ||||
1802 | bool ASTContext::isAlignmentRequired(const Type *T) const { | |||
1803 | return getTypeInfo(T).AlignIsRequired; | |||
1804 | } | |||
1805 | ||||
1806 | bool ASTContext::isAlignmentRequired(QualType T) const { | |||
1807 | return isAlignmentRequired(T.getTypePtr()); | |||
1808 | } | |||
1809 | ||||
1810 | unsigned ASTContext::getTypeAlignIfKnown(QualType T) const { | |||
1811 | // An alignment on a typedef overrides anything else. | |||
1812 | if (const auto *TT = T->getAs<TypedefType>()) | |||
1813 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
1814 | return Align; | |||
1815 | ||||
1816 | // If we have an (array of) complete type, we're done. | |||
1817 | T = getBaseElementType(T); | |||
1818 | if (!T->isIncompleteType()) | |||
1819 | return getTypeAlign(T); | |||
1820 | ||||
1821 | // If we had an array type, its element type might be a typedef | |||
1822 | // type with an alignment attribute. | |||
1823 | if (const auto *TT = T->getAs<TypedefType>()) | |||
1824 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
1825 | return Align; | |||
1826 | ||||
1827 | // Otherwise, see if the declaration of the type had an attribute. | |||
1828 | if (const auto *TT = T->getAs<TagType>()) | |||
1829 | return TT->getDecl()->getMaxAlignment(); | |||
1830 | ||||
1831 | return 0; | |||
1832 | } | |||
1833 | ||||
1834 | TypeInfo ASTContext::getTypeInfo(const Type *T) const { | |||
1835 | TypeInfoMap::iterator I = MemoizedTypeInfo.find(T); | |||
1836 | if (I != MemoizedTypeInfo.end()) | |||
1837 | return I->second; | |||
1838 | ||||
1839 | // This call can invalidate MemoizedTypeInfo[T], so we need a second lookup. | |||
1840 | TypeInfo TI = getTypeInfoImpl(T); | |||
1841 | MemoizedTypeInfo[T] = TI; | |||
1842 | return TI; | |||
1843 | } | |||
1844 | ||||
1845 | /// getTypeInfoImpl - Return the size of the specified type, in bits. This | |||
1846 | /// method does not work on incomplete types. | |||
1847 | /// | |||
1848 | /// FIXME: Pointers into different addr spaces could have different sizes and | |||
1849 | /// alignment requirements: getPointerInfo should take an AddrSpace, this | |||
1850 | /// should take a QualType, &c. | |||
1851 | TypeInfo ASTContext::getTypeInfoImpl(const Type *T) const { | |||
1852 | uint64_t Width = 0; | |||
1853 | unsigned Align = 8; | |||
1854 | bool AlignIsRequired = false; | |||
1855 | unsigned AS = 0; | |||
1856 | switch (T->getTypeClass()) { | |||
1857 | #define TYPE(Class, Base) | |||
1858 | #define ABSTRACT_TYPE(Class, Base) | |||
1859 | #define NON_CANONICAL_TYPE(Class, Base) | |||
1860 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
1861 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) \ | |||
1862 | case Type::Class: \ | |||
1863 | assert(!T->isDependentType() && "should not see dependent types here")((!T->isDependentType() && "should not see dependent types here" ) ? static_cast<void> (0) : __assert_fail ("!T->isDependentType() && \"should not see dependent types here\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1863, __PRETTY_FUNCTION__)); \ | |||
1864 | return getTypeInfo(cast<Class##Type>(T)->desugar().getTypePtr()); | |||
1865 | #include "clang/AST/TypeNodes.inc" | |||
1866 | llvm_unreachable("Should not see dependent types")::llvm::llvm_unreachable_internal("Should not see dependent types" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1866); | |||
1867 | ||||
1868 | case Type::FunctionNoProto: | |||
1869 | case Type::FunctionProto: | |||
1870 | // GCC extension: alignof(function) = 32 bits | |||
1871 | Width = 0; | |||
1872 | Align = 32; | |||
1873 | break; | |||
1874 | ||||
1875 | case Type::IncompleteArray: | |||
1876 | case Type::VariableArray: | |||
1877 | Width = 0; | |||
1878 | Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); | |||
1879 | break; | |||
1880 | ||||
1881 | case Type::ConstantArray: { | |||
1882 | const auto *CAT = cast<ConstantArrayType>(T); | |||
1883 | ||||
1884 | TypeInfo EltInfo = getTypeInfo(CAT->getElementType()); | |||
1885 | uint64_t Size = CAT->getSize().getZExtValue(); | |||
1886 | assert((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) &&(((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation") ? static_cast< void> (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1887, __PRETTY_FUNCTION__)) | |||
1887 | "Overflow in array type bit size evaluation")(((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation") ? static_cast< void> (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1887, __PRETTY_FUNCTION__)); | |||
1888 | Width = EltInfo.Width * Size; | |||
1889 | Align = EltInfo.Align; | |||
1890 | if (!getTargetInfo().getCXXABI().isMicrosoft() || | |||
1891 | getTargetInfo().getPointerWidth(0) == 64) | |||
1892 | Width = llvm::alignTo(Width, Align); | |||
1893 | break; | |||
1894 | } | |||
1895 | case Type::ExtVector: | |||
1896 | case Type::Vector: { | |||
1897 | const auto *VT = cast<VectorType>(T); | |||
1898 | TypeInfo EltInfo = getTypeInfo(VT->getElementType()); | |||
1899 | Width = EltInfo.Width * VT->getNumElements(); | |||
1900 | Align = Width; | |||
1901 | // If the alignment is not a power of 2, round up to the next power of 2. | |||
1902 | // This happens for non-power-of-2 length vectors. | |||
1903 | if (Align & (Align-1)) { | |||
1904 | Align = llvm::NextPowerOf2(Align); | |||
1905 | Width = llvm::alignTo(Width, Align); | |||
1906 | } | |||
1907 | // Adjust the alignment based on the target max. | |||
1908 | uint64_t TargetVectorAlign = Target->getMaxVectorAlign(); | |||
1909 | if (TargetVectorAlign && TargetVectorAlign < Align) | |||
1910 | Align = TargetVectorAlign; | |||
1911 | break; | |||
1912 | } | |||
1913 | ||||
1914 | case Type::Builtin: | |||
1915 | switch (cast<BuiltinType>(T)->getKind()) { | |||
1916 | default: llvm_unreachable("Unknown builtin type!")::llvm::llvm_unreachable_internal("Unknown builtin type!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 1916); | |||
1917 | case BuiltinType::Void: | |||
1918 | // GCC extension: alignof(void) = 8 bits. | |||
1919 | Width = 0; | |||
1920 | Align = 8; | |||
1921 | break; | |||
1922 | case BuiltinType::Bool: | |||
1923 | Width = Target->getBoolWidth(); | |||
1924 | Align = Target->getBoolAlign(); | |||
1925 | break; | |||
1926 | case BuiltinType::Char_S: | |||
1927 | case BuiltinType::Char_U: | |||
1928 | case BuiltinType::UChar: | |||
1929 | case BuiltinType::SChar: | |||
1930 | case BuiltinType::Char8: | |||
1931 | Width = Target->getCharWidth(); | |||
1932 | Align = Target->getCharAlign(); | |||
1933 | break; | |||
1934 | case BuiltinType::WChar_S: | |||
1935 | case BuiltinType::WChar_U: | |||
1936 | Width = Target->getWCharWidth(); | |||
1937 | Align = Target->getWCharAlign(); | |||
1938 | break; | |||
1939 | case BuiltinType::Char16: | |||
1940 | Width = Target->getChar16Width(); | |||
1941 | Align = Target->getChar16Align(); | |||
1942 | break; | |||
1943 | case BuiltinType::Char32: | |||
1944 | Width = Target->getChar32Width(); | |||
1945 | Align = Target->getChar32Align(); | |||
1946 | break; | |||
1947 | case BuiltinType::UShort: | |||
1948 | case BuiltinType::Short: | |||
1949 | Width = Target->getShortWidth(); | |||
1950 | Align = Target->getShortAlign(); | |||
1951 | break; | |||
1952 | case BuiltinType::UInt: | |||
1953 | case BuiltinType::Int: | |||
1954 | Width = Target->getIntWidth(); | |||
1955 | Align = Target->getIntAlign(); | |||
1956 | break; | |||
1957 | case BuiltinType::ULong: | |||
1958 | case BuiltinType::Long: | |||
1959 | Width = Target->getLongWidth(); | |||
1960 | Align = Target->getLongAlign(); | |||
1961 | break; | |||
1962 | case BuiltinType::ULongLong: | |||
1963 | case BuiltinType::LongLong: | |||
1964 | Width = Target->getLongLongWidth(); | |||
1965 | Align = Target->getLongLongAlign(); | |||
1966 | break; | |||
1967 | case BuiltinType::Int128: | |||
1968 | case BuiltinType::UInt128: | |||
1969 | Width = 128; | |||
1970 | Align = 128; // int128_t is 128-bit aligned on all targets. | |||
1971 | break; | |||
1972 | case BuiltinType::ShortAccum: | |||
1973 | case BuiltinType::UShortAccum: | |||
1974 | case BuiltinType::SatShortAccum: | |||
1975 | case BuiltinType::SatUShortAccum: | |||
1976 | Width = Target->getShortAccumWidth(); | |||
1977 | Align = Target->getShortAccumAlign(); | |||
1978 | break; | |||
1979 | case BuiltinType::Accum: | |||
1980 | case BuiltinType::UAccum: | |||
1981 | case BuiltinType::SatAccum: | |||
1982 | case BuiltinType::SatUAccum: | |||
1983 | Width = Target->getAccumWidth(); | |||
1984 | Align = Target->getAccumAlign(); | |||
1985 | break; | |||
1986 | case BuiltinType::LongAccum: | |||
1987 | case BuiltinType::ULongAccum: | |||
1988 | case BuiltinType::SatLongAccum: | |||
1989 | case BuiltinType::SatULongAccum: | |||
1990 | Width = Target->getLongAccumWidth(); | |||
1991 | Align = Target->getLongAccumAlign(); | |||
1992 | break; | |||
1993 | case BuiltinType::ShortFract: | |||
1994 | case BuiltinType::UShortFract: | |||
1995 | case BuiltinType::SatShortFract: | |||
1996 | case BuiltinType::SatUShortFract: | |||
1997 | Width = Target->getShortFractWidth(); | |||
1998 | Align = Target->getShortFractAlign(); | |||
1999 | break; | |||
2000 | case BuiltinType::Fract: | |||
2001 | case BuiltinType::UFract: | |||
2002 | case BuiltinType::SatFract: | |||
2003 | case BuiltinType::SatUFract: | |||
2004 | Width = Target->getFractWidth(); | |||
2005 | Align = Target->getFractAlign(); | |||
2006 | break; | |||
2007 | case BuiltinType::LongFract: | |||
2008 | case BuiltinType::ULongFract: | |||
2009 | case BuiltinType::SatLongFract: | |||
2010 | case BuiltinType::SatULongFract: | |||
2011 | Width = Target->getLongFractWidth(); | |||
2012 | Align = Target->getLongFractAlign(); | |||
2013 | break; | |||
2014 | case BuiltinType::Float16: | |||
2015 | case BuiltinType::Half: | |||
2016 | if (Target->hasFloat16Type() || !getLangOpts().OpenMP || | |||
2017 | !getLangOpts().OpenMPIsDevice) { | |||
2018 | Width = Target->getHalfWidth(); | |||
2019 | Align = Target->getHalfAlign(); | |||
2020 | } else { | |||
2021 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2022, __PRETTY_FUNCTION__)) | |||
2022 | "Expected OpenMP device compilation.")((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2022, __PRETTY_FUNCTION__)); | |||
2023 | Width = AuxTarget->getHalfWidth(); | |||
2024 | Align = AuxTarget->getHalfAlign(); | |||
2025 | } | |||
2026 | break; | |||
2027 | case BuiltinType::Float: | |||
2028 | Width = Target->getFloatWidth(); | |||
2029 | Align = Target->getFloatAlign(); | |||
2030 | break; | |||
2031 | case BuiltinType::Double: | |||
2032 | Width = Target->getDoubleWidth(); | |||
2033 | Align = Target->getDoubleAlign(); | |||
2034 | break; | |||
2035 | case BuiltinType::LongDouble: | |||
2036 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && | |||
2037 | (Target->getLongDoubleWidth() != AuxTarget->getLongDoubleWidth() || | |||
2038 | Target->getLongDoubleAlign() != AuxTarget->getLongDoubleAlign())) { | |||
2039 | Width = AuxTarget->getLongDoubleWidth(); | |||
2040 | Align = AuxTarget->getLongDoubleAlign(); | |||
2041 | } else { | |||
2042 | Width = Target->getLongDoubleWidth(); | |||
2043 | Align = Target->getLongDoubleAlign(); | |||
2044 | } | |||
2045 | break; | |||
2046 | case BuiltinType::Float128: | |||
2047 | if (Target->hasFloat128Type() || !getLangOpts().OpenMP || | |||
2048 | !getLangOpts().OpenMPIsDevice) { | |||
2049 | Width = Target->getFloat128Width(); | |||
2050 | Align = Target->getFloat128Align(); | |||
2051 | } else { | |||
2052 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2053, __PRETTY_FUNCTION__)) | |||
2053 | "Expected OpenMP device compilation.")((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2053, __PRETTY_FUNCTION__)); | |||
2054 | Width = AuxTarget->getFloat128Width(); | |||
2055 | Align = AuxTarget->getFloat128Align(); | |||
2056 | } | |||
2057 | break; | |||
2058 | case BuiltinType::NullPtr: | |||
2059 | Width = Target->getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) | |||
2060 | Align = Target->getPointerAlign(0); // == sizeof(void*) | |||
2061 | break; | |||
2062 | case BuiltinType::ObjCId: | |||
2063 | case BuiltinType::ObjCClass: | |||
2064 | case BuiltinType::ObjCSel: | |||
2065 | Width = Target->getPointerWidth(0); | |||
2066 | Align = Target->getPointerAlign(0); | |||
2067 | break; | |||
2068 | case BuiltinType::OCLSampler: | |||
2069 | case BuiltinType::OCLEvent: | |||
2070 | case BuiltinType::OCLClkEvent: | |||
2071 | case BuiltinType::OCLQueue: | |||
2072 | case BuiltinType::OCLReserveID: | |||
2073 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
2074 | case BuiltinType::Id: | |||
2075 | #include "clang/Basic/OpenCLImageTypes.def" | |||
2076 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
2077 | case BuiltinType::Id: | |||
2078 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
2079 | AS = getTargetAddressSpace( | |||
2080 | Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T))); | |||
2081 | Width = Target->getPointerWidth(AS); | |||
2082 | Align = Target->getPointerAlign(AS); | |||
2083 | break; | |||
2084 | // The SVE types are effectively target-specific. The length of an | |||
2085 | // SVE_VECTOR_TYPE is only known at runtime, but it is always a multiple | |||
2086 | // of 128 bits. There is one predicate bit for each vector byte, so the | |||
2087 | // length of an SVE_PREDICATE_TYPE is always a multiple of 16 bits. | |||
2088 | // | |||
2089 | // Because the length is only known at runtime, we use a dummy value | |||
2090 | // of 0 for the static length. The alignment values are those defined | |||
2091 | // by the Procedure Call Standard for the Arm Architecture. | |||
2092 | #define SVE_VECTOR_TYPE(Name, Id, SingletonId, ElKind, ElBits, IsSigned, IsFP)\ | |||
2093 | case BuiltinType::Id: \ | |||
2094 | Width = 0; \ | |||
2095 | Align = 128; \ | |||
2096 | break; | |||
2097 | #define SVE_PREDICATE_TYPE(Name, Id, SingletonId, ElKind) \ | |||
2098 | case BuiltinType::Id: \ | |||
2099 | Width = 0; \ | |||
2100 | Align = 16; \ | |||
2101 | break; | |||
2102 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
2103 | } | |||
2104 | break; | |||
2105 | case Type::ObjCObjectPointer: | |||
2106 | Width = Target->getPointerWidth(0); | |||
2107 | Align = Target->getPointerAlign(0); | |||
2108 | break; | |||
2109 | case Type::BlockPointer: | |||
2110 | AS = getTargetAddressSpace(cast<BlockPointerType>(T)->getPointeeType()); | |||
2111 | Width = Target->getPointerWidth(AS); | |||
2112 | Align = Target->getPointerAlign(AS); | |||
2113 | break; | |||
2114 | case Type::LValueReference: | |||
2115 | case Type::RValueReference: | |||
2116 | // alignof and sizeof should never enter this code path here, so we go | |||
2117 | // the pointer route. | |||
2118 | AS = getTargetAddressSpace(cast<ReferenceType>(T)->getPointeeType()); | |||
2119 | Width = Target->getPointerWidth(AS); | |||
2120 | Align = Target->getPointerAlign(AS); | |||
2121 | break; | |||
2122 | case Type::Pointer: | |||
2123 | AS = getTargetAddressSpace(cast<PointerType>(T)->getPointeeType()); | |||
2124 | Width = Target->getPointerWidth(AS); | |||
2125 | Align = Target->getPointerAlign(AS); | |||
2126 | break; | |||
2127 | case Type::MemberPointer: { | |||
2128 | const auto *MPT = cast<MemberPointerType>(T); | |||
2129 | CXXABI::MemberPointerInfo MPI = ABI->getMemberPointerInfo(MPT); | |||
2130 | Width = MPI.Width; | |||
2131 | Align = MPI.Align; | |||
2132 | break; | |||
2133 | } | |||
2134 | case Type::Complex: { | |||
2135 | // Complex types have the same alignment as their elements, but twice the | |||
2136 | // size. | |||
2137 | TypeInfo EltInfo = getTypeInfo(cast<ComplexType>(T)->getElementType()); | |||
2138 | Width = EltInfo.Width * 2; | |||
2139 | Align = EltInfo.Align; | |||
2140 | break; | |||
2141 | } | |||
2142 | case Type::ObjCObject: | |||
2143 | return getTypeInfo(cast<ObjCObjectType>(T)->getBaseType().getTypePtr()); | |||
2144 | case Type::Adjusted: | |||
2145 | case Type::Decayed: | |||
2146 | return getTypeInfo(cast<AdjustedType>(T)->getAdjustedType().getTypePtr()); | |||
2147 | case Type::ObjCInterface: { | |||
2148 | const auto *ObjCI = cast<ObjCInterfaceType>(T); | |||
2149 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
2150 | Width = toBits(Layout.getSize()); | |||
2151 | Align = toBits(Layout.getAlignment()); | |||
2152 | break; | |||
2153 | } | |||
2154 | case Type::Record: | |||
2155 | case Type::Enum: { | |||
2156 | const auto *TT = cast<TagType>(T); | |||
2157 | ||||
2158 | if (TT->getDecl()->isInvalidDecl()) { | |||
2159 | Width = 8; | |||
2160 | Align = 8; | |||
2161 | break; | |||
2162 | } | |||
2163 | ||||
2164 | if (const auto *ET = dyn_cast<EnumType>(TT)) { | |||
2165 | const EnumDecl *ED = ET->getDecl(); | |||
2166 | TypeInfo Info = | |||
2167 | getTypeInfo(ED->getIntegerType()->getUnqualifiedDesugaredType()); | |||
2168 | if (unsigned AttrAlign = ED->getMaxAlignment()) { | |||
2169 | Info.Align = AttrAlign; | |||
2170 | Info.AlignIsRequired = true; | |||
2171 | } | |||
2172 | return Info; | |||
2173 | } | |||
2174 | ||||
2175 | const auto *RT = cast<RecordType>(TT); | |||
2176 | const RecordDecl *RD = RT->getDecl(); | |||
2177 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
2178 | Width = toBits(Layout.getSize()); | |||
2179 | Align = toBits(Layout.getAlignment()); | |||
2180 | AlignIsRequired = RD->hasAttr<AlignedAttr>(); | |||
2181 | break; | |||
2182 | } | |||
2183 | ||||
2184 | case Type::SubstTemplateTypeParm: | |||
2185 | return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> | |||
2186 | getReplacementType().getTypePtr()); | |||
2187 | ||||
2188 | case Type::Auto: | |||
2189 | case Type::DeducedTemplateSpecialization: { | |||
2190 | const auto *A = cast<DeducedType>(T); | |||
2191 | assert(!A->getDeducedType().isNull() &&((!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? static_cast<void> (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2192, __PRETTY_FUNCTION__)) | |||
2192 | "cannot request the size of an undeduced or dependent auto type")((!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? static_cast<void> (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2192, __PRETTY_FUNCTION__)); | |||
2193 | return getTypeInfo(A->getDeducedType().getTypePtr()); | |||
2194 | } | |||
2195 | ||||
2196 | case Type::Paren: | |||
2197 | return getTypeInfo(cast<ParenType>(T)->getInnerType().getTypePtr()); | |||
2198 | ||||
2199 | case Type::MacroQualified: | |||
2200 | return getTypeInfo( | |||
2201 | cast<MacroQualifiedType>(T)->getUnderlyingType().getTypePtr()); | |||
2202 | ||||
2203 | case Type::ObjCTypeParam: | |||
2204 | return getTypeInfo(cast<ObjCTypeParamType>(T)->desugar().getTypePtr()); | |||
2205 | ||||
2206 | case Type::Typedef: { | |||
2207 | const TypedefNameDecl *Typedef = cast<TypedefType>(T)->getDecl(); | |||
2208 | TypeInfo Info = getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); | |||
2209 | // If the typedef has an aligned attribute on it, it overrides any computed | |||
2210 | // alignment we have. This violates the GCC documentation (which says that | |||
2211 | // attribute(aligned) can only round up) but matches its implementation. | |||
2212 | if (unsigned AttrAlign = Typedef->getMaxAlignment()) { | |||
2213 | Align = AttrAlign; | |||
2214 | AlignIsRequired = true; | |||
2215 | } else { | |||
2216 | Align = Info.Align; | |||
2217 | AlignIsRequired = Info.AlignIsRequired; | |||
2218 | } | |||
2219 | Width = Info.Width; | |||
2220 | break; | |||
2221 | } | |||
2222 | ||||
2223 | case Type::Elaborated: | |||
2224 | return getTypeInfo(cast<ElaboratedType>(T)->getNamedType().getTypePtr()); | |||
2225 | ||||
2226 | case Type::Attributed: | |||
2227 | return getTypeInfo( | |||
2228 | cast<AttributedType>(T)->getEquivalentType().getTypePtr()); | |||
2229 | ||||
2230 | case Type::Atomic: { | |||
2231 | // Start with the base type information. | |||
2232 | TypeInfo Info = getTypeInfo(cast<AtomicType>(T)->getValueType()); | |||
2233 | Width = Info.Width; | |||
2234 | Align = Info.Align; | |||
2235 | ||||
2236 | if (!Width) { | |||
2237 | // An otherwise zero-sized type should still generate an | |||
2238 | // atomic operation. | |||
2239 | Width = Target->getCharWidth(); | |||
2240 | assert(Align)((Align) ? static_cast<void> (0) : __assert_fail ("Align" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2240, __PRETTY_FUNCTION__)); | |||
2241 | } else if (Width <= Target->getMaxAtomicPromoteWidth()) { | |||
2242 | // If the size of the type doesn't exceed the platform's max | |||
2243 | // atomic promotion width, make the size and alignment more | |||
2244 | // favorable to atomic operations: | |||
2245 | ||||
2246 | // Round the size up to a power of 2. | |||
2247 | if (!llvm::isPowerOf2_64(Width)) | |||
2248 | Width = llvm::NextPowerOf2(Width); | |||
2249 | ||||
2250 | // Set the alignment equal to the size. | |||
2251 | Align = static_cast<unsigned>(Width); | |||
2252 | } | |||
2253 | } | |||
2254 | break; | |||
2255 | ||||
2256 | case Type::Pipe: | |||
2257 | Width = Target->getPointerWidth(getTargetAddressSpace(LangAS::opencl_global)); | |||
2258 | Align = Target->getPointerAlign(getTargetAddressSpace(LangAS::opencl_global)); | |||
2259 | break; | |||
2260 | } | |||
2261 | ||||
2262 | assert(llvm::isPowerOf2_32(Align) && "Alignment must be power of 2")((llvm::isPowerOf2_32(Align) && "Alignment must be power of 2" ) ? static_cast<void> (0) : __assert_fail ("llvm::isPowerOf2_32(Align) && \"Alignment must be power of 2\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2262, __PRETTY_FUNCTION__)); | |||
2263 | return TypeInfo(Width, Align, AlignIsRequired); | |||
2264 | } | |||
2265 | ||||
2266 | unsigned ASTContext::getTypeUnadjustedAlign(const Type *T) const { | |||
2267 | UnadjustedAlignMap::iterator I = MemoizedUnadjustedAlign.find(T); | |||
2268 | if (I != MemoizedUnadjustedAlign.end()) | |||
2269 | return I->second; | |||
2270 | ||||
2271 | unsigned UnadjustedAlign; | |||
2272 | if (const auto *RT = T->getAs<RecordType>()) { | |||
2273 | const RecordDecl *RD = RT->getDecl(); | |||
2274 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
2275 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
2276 | } else if (const auto *ObjCI = T->getAs<ObjCInterfaceType>()) { | |||
2277 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
2278 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
2279 | } else { | |||
2280 | UnadjustedAlign = getTypeAlign(T->getUnqualifiedDesugaredType()); | |||
2281 | } | |||
2282 | ||||
2283 | MemoizedUnadjustedAlign[T] = UnadjustedAlign; | |||
2284 | return UnadjustedAlign; | |||
2285 | } | |||
2286 | ||||
2287 | unsigned ASTContext::getOpenMPDefaultSimdAlign(QualType T) const { | |||
2288 | unsigned SimdAlign = getTargetInfo().getSimdDefaultAlign(); | |||
2289 | // Target ppc64 with QPX: simd default alignment for pointer to double is 32. | |||
2290 | if ((getTargetInfo().getTriple().getArch() == llvm::Triple::ppc64 || | |||
2291 | getTargetInfo().getTriple().getArch() == llvm::Triple::ppc64le) && | |||
2292 | getTargetInfo().getABI() == "elfv1-qpx" && | |||
2293 | T->isSpecificBuiltinType(BuiltinType::Double)) | |||
2294 | SimdAlign = 256; | |||
2295 | return SimdAlign; | |||
2296 | } | |||
2297 | ||||
2298 | /// toCharUnitsFromBits - Convert a size in bits to a size in characters. | |||
2299 | CharUnits ASTContext::toCharUnitsFromBits(int64_t BitSize) const { | |||
2300 | return CharUnits::fromQuantity(BitSize / getCharWidth()); | |||
2301 | } | |||
2302 | ||||
2303 | /// toBits - Convert a size in characters to a size in characters. | |||
2304 | int64_t ASTContext::toBits(CharUnits CharSize) const { | |||
2305 | return CharSize.getQuantity() * getCharWidth(); | |||
2306 | } | |||
2307 | ||||
2308 | /// getTypeSizeInChars - Return the size of the specified type, in characters. | |||
2309 | /// This method does not work on incomplete types. | |||
2310 | CharUnits ASTContext::getTypeSizeInChars(QualType T) const { | |||
2311 | return getTypeInfoInChars(T).first; | |||
2312 | } | |||
2313 | CharUnits ASTContext::getTypeSizeInChars(const Type *T) const { | |||
2314 | return getTypeInfoInChars(T).first; | |||
2315 | } | |||
2316 | ||||
2317 | /// getTypeAlignInChars - Return the ABI-specified alignment of a type, in | |||
2318 | /// characters. This method does not work on incomplete types. | |||
2319 | CharUnits ASTContext::getTypeAlignInChars(QualType T) const { | |||
2320 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
2321 | } | |||
2322 | CharUnits ASTContext::getTypeAlignInChars(const Type *T) const { | |||
2323 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
2324 | } | |||
2325 | ||||
2326 | /// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a | |||
2327 | /// type, in characters, before alignment adustments. This method does | |||
2328 | /// not work on incomplete types. | |||
2329 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(QualType T) const { | |||
2330 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
2331 | } | |||
2332 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(const Type *T) const { | |||
2333 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
2334 | } | |||
2335 | ||||
2336 | /// getPreferredTypeAlign - Return the "preferred" alignment of the specified | |||
2337 | /// type for the current target in bits. This can be different than the ABI | |||
2338 | /// alignment in cases where it is beneficial for performance to overalign | |||
2339 | /// a data type. | |||
2340 | unsigned ASTContext::getPreferredTypeAlign(const Type *T) const { | |||
2341 | TypeInfo TI = getTypeInfo(T); | |||
2342 | unsigned ABIAlign = TI.Align; | |||
2343 | ||||
2344 | T = T->getBaseElementTypeUnsafe(); | |||
2345 | ||||
2346 | // The preferred alignment of member pointers is that of a pointer. | |||
2347 | if (T->isMemberPointerType()) | |||
2348 | return getPreferredTypeAlign(getPointerDiffType().getTypePtr()); | |||
2349 | ||||
2350 | if (!Target->allowsLargerPreferedTypeAlignment()) | |||
2351 | return ABIAlign; | |||
2352 | ||||
2353 | // Double and long long should be naturally aligned if possible. | |||
2354 | if (const auto *CT = T->getAs<ComplexType>()) | |||
2355 | T = CT->getElementType().getTypePtr(); | |||
2356 | if (const auto *ET = T->getAs<EnumType>()) | |||
2357 | T = ET->getDecl()->getIntegerType().getTypePtr(); | |||
2358 | if (T->isSpecificBuiltinType(BuiltinType::Double) || | |||
2359 | T->isSpecificBuiltinType(BuiltinType::LongLong) || | |||
2360 | T->isSpecificBuiltinType(BuiltinType::ULongLong)) | |||
2361 | // Don't increase the alignment if an alignment attribute was specified on a | |||
2362 | // typedef declaration. | |||
2363 | if (!TI.AlignIsRequired) | |||
2364 | return std::max(ABIAlign, (unsigned)getTypeSize(T)); | |||
2365 | ||||
2366 | return ABIAlign; | |||
2367 | } | |||
2368 | ||||
2369 | /// getTargetDefaultAlignForAttributeAligned - Return the default alignment | |||
2370 | /// for __attribute__((aligned)) on this target, to be used if no alignment | |||
2371 | /// value is specified. | |||
2372 | unsigned ASTContext::getTargetDefaultAlignForAttributeAligned() const { | |||
2373 | return getTargetInfo().getDefaultAlignForAttributeAligned(); | |||
2374 | } | |||
2375 | ||||
2376 | /// getAlignOfGlobalVar - Return the alignment in bits that should be given | |||
2377 | /// to a global variable of the specified type. | |||
2378 | unsigned ASTContext::getAlignOfGlobalVar(QualType T) const { | |||
2379 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
2380 | return std::max(getTypeAlign(T), getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
2381 | } | |||
2382 | ||||
2383 | /// getAlignOfGlobalVarInChars - Return the alignment in characters that | |||
2384 | /// should be given to a global variable of the specified type. | |||
2385 | CharUnits ASTContext::getAlignOfGlobalVarInChars(QualType T) const { | |||
2386 | return toCharUnitsFromBits(getAlignOfGlobalVar(T)); | |||
2387 | } | |||
2388 | ||||
2389 | CharUnits ASTContext::getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const { | |||
2390 | CharUnits Offset = CharUnits::Zero(); | |||
2391 | const ASTRecordLayout *Layout = &getASTRecordLayout(RD); | |||
2392 | while (const CXXRecordDecl *Base = Layout->getBaseSharingVBPtr()) { | |||
2393 | Offset += Layout->getBaseClassOffset(Base); | |||
2394 | Layout = &getASTRecordLayout(Base); | |||
2395 | } | |||
2396 | return Offset; | |||
2397 | } | |||
2398 | ||||
2399 | /// DeepCollectObjCIvars - | |||
2400 | /// This routine first collects all declared, but not synthesized, ivars in | |||
2401 | /// super class and then collects all ivars, including those synthesized for | |||
2402 | /// current class. This routine is used for implementation of current class | |||
2403 | /// when all ivars, declared and synthesized are known. | |||
2404 | void ASTContext::DeepCollectObjCIvars(const ObjCInterfaceDecl *OI, | |||
2405 | bool leafClass, | |||
2406 | SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const { | |||
2407 | if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) | |||
2408 | DeepCollectObjCIvars(SuperClass, false, Ivars); | |||
2409 | if (!leafClass) { | |||
2410 | for (const auto *I : OI->ivars()) | |||
2411 | Ivars.push_back(I); | |||
2412 | } else { | |||
2413 | auto *IDecl = const_cast<ObjCInterfaceDecl *>(OI); | |||
2414 | for (const ObjCIvarDecl *Iv = IDecl->all_declared_ivar_begin(); Iv; | |||
2415 | Iv= Iv->getNextIvar()) | |||
2416 | Ivars.push_back(Iv); | |||
2417 | } | |||
2418 | } | |||
2419 | ||||
2420 | /// CollectInheritedProtocols - Collect all protocols in current class and | |||
2421 | /// those inherited by it. | |||
2422 | void ASTContext::CollectInheritedProtocols(const Decl *CDecl, | |||
2423 | llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { | |||
2424 | if (const auto *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { | |||
2425 | // We can use protocol_iterator here instead of | |||
2426 | // all_referenced_protocol_iterator since we are walking all categories. | |||
2427 | for (auto *Proto : OI->all_referenced_protocols()) { | |||
2428 | CollectInheritedProtocols(Proto, Protocols); | |||
2429 | } | |||
2430 | ||||
2431 | // Categories of this Interface. | |||
2432 | for (const auto *Cat : OI->visible_categories()) | |||
2433 | CollectInheritedProtocols(Cat, Protocols); | |||
2434 | ||||
2435 | if (ObjCInterfaceDecl *SD = OI->getSuperClass()) | |||
2436 | while (SD) { | |||
2437 | CollectInheritedProtocols(SD, Protocols); | |||
2438 | SD = SD->getSuperClass(); | |||
2439 | } | |||
2440 | } else if (const auto *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { | |||
2441 | for (auto *Proto : OC->protocols()) { | |||
2442 | CollectInheritedProtocols(Proto, Protocols); | |||
2443 | } | |||
2444 | } else if (const auto *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { | |||
2445 | // Insert the protocol. | |||
2446 | if (!Protocols.insert( | |||
2447 | const_cast<ObjCProtocolDecl *>(OP->getCanonicalDecl())).second) | |||
2448 | return; | |||
2449 | ||||
2450 | for (auto *Proto : OP->protocols()) | |||
2451 | CollectInheritedProtocols(Proto, Protocols); | |||
2452 | } | |||
2453 | } | |||
2454 | ||||
2455 | static bool unionHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2456 | const RecordDecl *RD) { | |||
2457 | assert(RD->isUnion() && "Must be union type")((RD->isUnion() && "Must be union type") ? static_cast <void> (0) : __assert_fail ("RD->isUnion() && \"Must be union type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2457, __PRETTY_FUNCTION__)); | |||
2458 | CharUnits UnionSize = Context.getTypeSizeInChars(RD->getTypeForDecl()); | |||
2459 | ||||
2460 | for (const auto *Field : RD->fields()) { | |||
2461 | if (!Context.hasUniqueObjectRepresentations(Field->getType())) | |||
2462 | return false; | |||
2463 | CharUnits FieldSize = Context.getTypeSizeInChars(Field->getType()); | |||
2464 | if (FieldSize != UnionSize) | |||
2465 | return false; | |||
2466 | } | |||
2467 | return !RD->field_empty(); | |||
2468 | } | |||
2469 | ||||
2470 | static bool isStructEmpty(QualType Ty) { | |||
2471 | const RecordDecl *RD = Ty->castAs<RecordType>()->getDecl(); | |||
2472 | ||||
2473 | if (!RD->field_empty()) | |||
2474 | return false; | |||
2475 | ||||
2476 | if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) | |||
2477 | return ClassDecl->isEmpty(); | |||
2478 | ||||
2479 | return true; | |||
2480 | } | |||
2481 | ||||
2482 | static llvm::Optional<int64_t> | |||
2483 | structHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2484 | const RecordDecl *RD) { | |||
2485 | assert(!RD->isUnion() && "Must be struct/class type")((!RD->isUnion() && "Must be struct/class type") ? static_cast<void> (0) : __assert_fail ("!RD->isUnion() && \"Must be struct/class type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2485, __PRETTY_FUNCTION__)); | |||
2486 | const auto &Layout = Context.getASTRecordLayout(RD); | |||
2487 | ||||
2488 | int64_t CurOffsetInBits = 0; | |||
2489 | if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) { | |||
2490 | if (ClassDecl->isDynamicClass()) | |||
2491 | return llvm::None; | |||
2492 | ||||
2493 | SmallVector<std::pair<QualType, int64_t>, 4> Bases; | |||
2494 | for (const auto &Base : ClassDecl->bases()) { | |||
2495 | // Empty types can be inherited from, and non-empty types can potentially | |||
2496 | // have tail padding, so just make sure there isn't an error. | |||
2497 | if (!isStructEmpty(Base.getType())) { | |||
2498 | llvm::Optional<int64_t> Size = structHasUniqueObjectRepresentations( | |||
2499 | Context, Base.getType()->castAs<RecordType>()->getDecl()); | |||
2500 | if (!Size) | |||
2501 | return llvm::None; | |||
2502 | Bases.emplace_back(Base.getType(), Size.getValue()); | |||
2503 | } | |||
2504 | } | |||
2505 | ||||
2506 | llvm::sort(Bases, [&](const std::pair<QualType, int64_t> &L, | |||
2507 | const std::pair<QualType, int64_t> &R) { | |||
2508 | return Layout.getBaseClassOffset(L.first->getAsCXXRecordDecl()) < | |||
2509 | Layout.getBaseClassOffset(R.first->getAsCXXRecordDecl()); | |||
2510 | }); | |||
2511 | ||||
2512 | for (const auto &Base : Bases) { | |||
2513 | int64_t BaseOffset = Context.toBits( | |||
2514 | Layout.getBaseClassOffset(Base.first->getAsCXXRecordDecl())); | |||
2515 | int64_t BaseSize = Base.second; | |||
2516 | if (BaseOffset != CurOffsetInBits) | |||
2517 | return llvm::None; | |||
2518 | CurOffsetInBits = BaseOffset + BaseSize; | |||
2519 | } | |||
2520 | } | |||
2521 | ||||
2522 | for (const auto *Field : RD->fields()) { | |||
2523 | if (!Field->getType()->isReferenceType() && | |||
2524 | !Context.hasUniqueObjectRepresentations(Field->getType())) | |||
2525 | return llvm::None; | |||
2526 | ||||
2527 | int64_t FieldSizeInBits = | |||
2528 | Context.toBits(Context.getTypeSizeInChars(Field->getType())); | |||
2529 | if (Field->isBitField()) { | |||
2530 | int64_t BitfieldSize = Field->getBitWidthValue(Context); | |||
2531 | ||||
2532 | if (BitfieldSize > FieldSizeInBits) | |||
2533 | return llvm::None; | |||
2534 | FieldSizeInBits = BitfieldSize; | |||
2535 | } | |||
2536 | ||||
2537 | int64_t FieldOffsetInBits = Context.getFieldOffset(Field); | |||
2538 | ||||
2539 | if (FieldOffsetInBits != CurOffsetInBits) | |||
2540 | return llvm::None; | |||
2541 | ||||
2542 | CurOffsetInBits = FieldSizeInBits + FieldOffsetInBits; | |||
2543 | } | |||
2544 | ||||
2545 | return CurOffsetInBits; | |||
2546 | } | |||
2547 | ||||
2548 | bool ASTContext::hasUniqueObjectRepresentations(QualType Ty) const { | |||
2549 | // C++17 [meta.unary.prop]: | |||
2550 | // The predicate condition for a template specialization | |||
2551 | // has_unique_object_representations<T> shall be | |||
2552 | // satisfied if and only if: | |||
2553 | // (9.1) - T is trivially copyable, and | |||
2554 | // (9.2) - any two objects of type T with the same value have the same | |||
2555 | // object representation, where two objects | |||
2556 | // of array or non-union class type are considered to have the same value | |||
2557 | // if their respective sequences of | |||
2558 | // direct subobjects have the same values, and two objects of union type | |||
2559 | // are considered to have the same | |||
2560 | // value if they have the same active member and the corresponding members | |||
2561 | // have the same value. | |||
2562 | // The set of scalar types for which this condition holds is | |||
2563 | // implementation-defined. [ Note: If a type has padding | |||
2564 | // bits, the condition does not hold; otherwise, the condition holds true | |||
2565 | // for unsigned integral types. -- end note ] | |||
2566 | assert(!Ty.isNull() && "Null QualType sent to unique object rep check")((!Ty.isNull() && "Null QualType sent to unique object rep check" ) ? static_cast<void> (0) : __assert_fail ("!Ty.isNull() && \"Null QualType sent to unique object rep check\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2566, __PRETTY_FUNCTION__)); | |||
2567 | ||||
2568 | // Arrays are unique only if their element type is unique. | |||
2569 | if (Ty->isArrayType()) | |||
2570 | return hasUniqueObjectRepresentations(getBaseElementType(Ty)); | |||
2571 | ||||
2572 | // (9.1) - T is trivially copyable... | |||
2573 | if (!Ty.isTriviallyCopyableType(*this)) | |||
2574 | return false; | |||
2575 | ||||
2576 | // All integrals and enums are unique. | |||
2577 | if (Ty->isIntegralOrEnumerationType()) | |||
2578 | return true; | |||
2579 | ||||
2580 | // All other pointers are unique. | |||
2581 | if (Ty->isPointerType()) | |||
2582 | return true; | |||
2583 | ||||
2584 | if (Ty->isMemberPointerType()) { | |||
2585 | const auto *MPT = Ty->getAs<MemberPointerType>(); | |||
2586 | return !ABI->getMemberPointerInfo(MPT).HasPadding; | |||
2587 | } | |||
2588 | ||||
2589 | if (Ty->isRecordType()) { | |||
2590 | const RecordDecl *Record = Ty->castAs<RecordType>()->getDecl(); | |||
2591 | ||||
2592 | if (Record->isInvalidDecl()) | |||
2593 | return false; | |||
2594 | ||||
2595 | if (Record->isUnion()) | |||
2596 | return unionHasUniqueObjectRepresentations(*this, Record); | |||
2597 | ||||
2598 | Optional<int64_t> StructSize = | |||
2599 | structHasUniqueObjectRepresentations(*this, Record); | |||
2600 | ||||
2601 | return StructSize && | |||
2602 | StructSize.getValue() == static_cast<int64_t>(getTypeSize(Ty)); | |||
2603 | } | |||
2604 | ||||
2605 | // FIXME: More cases to handle here (list by rsmith): | |||
2606 | // vectors (careful about, eg, vector of 3 foo) | |||
2607 | // _Complex int and friends | |||
2608 | // _Atomic T | |||
2609 | // Obj-C block pointers | |||
2610 | // Obj-C object pointers | |||
2611 | // and perhaps OpenCL's various builtin types (pipe, sampler_t, event_t, | |||
2612 | // clk_event_t, queue_t, reserve_id_t) | |||
2613 | // There're also Obj-C class types and the Obj-C selector type, but I think it | |||
2614 | // makes sense for those to return false here. | |||
2615 | ||||
2616 | return false; | |||
2617 | } | |||
2618 | ||||
2619 | unsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) const { | |||
2620 | unsigned count = 0; | |||
2621 | // Count ivars declared in class extension. | |||
2622 | for (const auto *Ext : OI->known_extensions()) | |||
2623 | count += Ext->ivar_size(); | |||
2624 | ||||
2625 | // Count ivar defined in this class's implementation. This | |||
2626 | // includes synthesized ivars. | |||
2627 | if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) | |||
2628 | count += ImplDecl->ivar_size(); | |||
2629 | ||||
2630 | return count; | |||
2631 | } | |||
2632 | ||||
2633 | bool ASTContext::isSentinelNullExpr(const Expr *E) { | |||
2634 | if (!E) | |||
2635 | return false; | |||
2636 | ||||
2637 | // nullptr_t is always treated as null. | |||
2638 | if (E->getType()->isNullPtrType()) return true; | |||
2639 | ||||
2640 | if (E->getType()->isAnyPointerType() && | |||
2641 | E->IgnoreParenCasts()->isNullPointerConstant(*this, | |||
2642 | Expr::NPC_ValueDependentIsNull)) | |||
2643 | return true; | |||
2644 | ||||
2645 | // Unfortunately, __null has type 'int'. | |||
2646 | if (isa<GNUNullExpr>(E)) return true; | |||
2647 | ||||
2648 | return false; | |||
2649 | } | |||
2650 | ||||
2651 | /// Get the implementation of ObjCInterfaceDecl, or nullptr if none | |||
2652 | /// exists. | |||
2653 | ObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { | |||
2654 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
2655 | I = ObjCImpls.find(D); | |||
2656 | if (I != ObjCImpls.end()) | |||
2657 | return cast<ObjCImplementationDecl>(I->second); | |||
2658 | return nullptr; | |||
2659 | } | |||
2660 | ||||
2661 | /// Get the implementation of ObjCCategoryDecl, or nullptr if none | |||
2662 | /// exists. | |||
2663 | ObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { | |||
2664 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
2665 | I = ObjCImpls.find(D); | |||
2666 | if (I != ObjCImpls.end()) | |||
2667 | return cast<ObjCCategoryImplDecl>(I->second); | |||
2668 | return nullptr; | |||
2669 | } | |||
2670 | ||||
2671 | /// Set the implementation of ObjCInterfaceDecl. | |||
2672 | void ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, | |||
2673 | ObjCImplementationDecl *ImplD) { | |||
2674 | assert(IFaceD && ImplD && "Passed null params")((IFaceD && ImplD && "Passed null params") ? static_cast <void> (0) : __assert_fail ("IFaceD && ImplD && \"Passed null params\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2674, __PRETTY_FUNCTION__)); | |||
2675 | ObjCImpls[IFaceD] = ImplD; | |||
2676 | } | |||
2677 | ||||
2678 | /// Set the implementation of ObjCCategoryDecl. | |||
2679 | void ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, | |||
2680 | ObjCCategoryImplDecl *ImplD) { | |||
2681 | assert(CatD && ImplD && "Passed null params")((CatD && ImplD && "Passed null params") ? static_cast <void> (0) : __assert_fail ("CatD && ImplD && \"Passed null params\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2681, __PRETTY_FUNCTION__)); | |||
2682 | ObjCImpls[CatD] = ImplD; | |||
2683 | } | |||
2684 | ||||
2685 | const ObjCMethodDecl * | |||
2686 | ASTContext::getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const { | |||
2687 | return ObjCMethodRedecls.lookup(MD); | |||
2688 | } | |||
2689 | ||||
2690 | void ASTContext::setObjCMethodRedeclaration(const ObjCMethodDecl *MD, | |||
2691 | const ObjCMethodDecl *Redecl) { | |||
2692 | assert(!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration")((!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration" ) ? static_cast<void> (0) : __assert_fail ("!getObjCMethodRedeclaration(MD) && \"MD already has a redeclaration\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2692, __PRETTY_FUNCTION__)); | |||
2693 | ObjCMethodRedecls[MD] = Redecl; | |||
2694 | } | |||
2695 | ||||
2696 | const ObjCInterfaceDecl *ASTContext::getObjContainingInterface( | |||
2697 | const NamedDecl *ND) const { | |||
2698 | if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND->getDeclContext())) | |||
2699 | return ID; | |||
2700 | if (const auto *CD = dyn_cast<ObjCCategoryDecl>(ND->getDeclContext())) | |||
2701 | return CD->getClassInterface(); | |||
2702 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(ND->getDeclContext())) | |||
2703 | return IMD->getClassInterface(); | |||
2704 | ||||
2705 | return nullptr; | |||
2706 | } | |||
2707 | ||||
2708 | /// Get the copy initialization expression of VarDecl, or nullptr if | |||
2709 | /// none exists. | |||
2710 | BlockVarCopyInit ASTContext::getBlockVarCopyInit(const VarDecl *VD) const { | |||
2711 | assert(VD && "Passed null params")((VD && "Passed null params") ? static_cast<void> (0) : __assert_fail ("VD && \"Passed null params\"", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2711, __PRETTY_FUNCTION__)); | |||
2712 | assert(VD->hasAttr<BlocksAttr>() &&((VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2713, __PRETTY_FUNCTION__)) | |||
2713 | "getBlockVarCopyInits - not __block var")((VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2713, __PRETTY_FUNCTION__)); | |||
2714 | auto I = BlockVarCopyInits.find(VD); | |||
2715 | if (I != BlockVarCopyInits.end()) | |||
2716 | return I->second; | |||
2717 | return {nullptr, false}; | |||
2718 | } | |||
2719 | ||||
2720 | /// Set the copy initialization expression of a block var decl. | |||
2721 | void ASTContext::setBlockVarCopyInit(const VarDecl*VD, Expr *CopyExpr, | |||
2722 | bool CanThrow) { | |||
2723 | assert(VD && CopyExpr && "Passed null params")((VD && CopyExpr && "Passed null params") ? static_cast <void> (0) : __assert_fail ("VD && CopyExpr && \"Passed null params\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2723, __PRETTY_FUNCTION__)); | |||
2724 | assert(VD->hasAttr<BlocksAttr>() &&((VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2725, __PRETTY_FUNCTION__)) | |||
2725 | "setBlockVarCopyInits - not __block var")((VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2725, __PRETTY_FUNCTION__)); | |||
2726 | BlockVarCopyInits[VD].setExprAndFlag(CopyExpr, CanThrow); | |||
2727 | } | |||
2728 | ||||
2729 | TypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, | |||
2730 | unsigned DataSize) const { | |||
2731 | if (!DataSize) | |||
2732 | DataSize = TypeLoc::getFullDataSizeForType(T); | |||
2733 | else | |||
2734 | assert(DataSize == TypeLoc::getFullDataSizeForType(T) &&((DataSize == TypeLoc::getFullDataSizeForType(T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? static_cast<void> (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2735, __PRETTY_FUNCTION__)) | |||
2735 | "incorrect data size provided to CreateTypeSourceInfo!")((DataSize == TypeLoc::getFullDataSizeForType(T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? static_cast<void> (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2735, __PRETTY_FUNCTION__)); | |||
2736 | ||||
2737 | auto *TInfo = | |||
2738 | (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); | |||
2739 | new (TInfo) TypeSourceInfo(T); | |||
2740 | return TInfo; | |||
2741 | } | |||
2742 | ||||
2743 | TypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, | |||
2744 | SourceLocation L) const { | |||
2745 | TypeSourceInfo *DI = CreateTypeSourceInfo(T); | |||
2746 | DI->getTypeLoc().initialize(const_cast<ASTContext &>(*this), L); | |||
2747 | return DI; | |||
2748 | } | |||
2749 | ||||
2750 | const ASTRecordLayout & | |||
2751 | ASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) const { | |||
2752 | return getObjCLayout(D, nullptr); | |||
2753 | } | |||
2754 | ||||
2755 | const ASTRecordLayout & | |||
2756 | ASTContext::getASTObjCImplementationLayout( | |||
2757 | const ObjCImplementationDecl *D) const { | |||
2758 | return getObjCLayout(D->getClassInterface(), D); | |||
2759 | } | |||
2760 | ||||
2761 | //===----------------------------------------------------------------------===// | |||
2762 | // Type creation/memoization methods | |||
2763 | //===----------------------------------------------------------------------===// | |||
2764 | ||||
2765 | QualType | |||
2766 | ASTContext::getExtQualType(const Type *baseType, Qualifiers quals) const { | |||
2767 | unsigned fastQuals = quals.getFastQualifiers(); | |||
2768 | quals.removeFastQualifiers(); | |||
2769 | ||||
2770 | // Check if we've already instantiated this type. | |||
2771 | llvm::FoldingSetNodeID ID; | |||
2772 | ExtQuals::Profile(ID, baseType, quals); | |||
2773 | void *insertPos = nullptr; | |||
2774 | if (ExtQuals *eq = ExtQualNodes.FindNodeOrInsertPos(ID, insertPos)) { | |||
2775 | assert(eq->getQualifiers() == quals)((eq->getQualifiers() == quals) ? static_cast<void> ( 0) : __assert_fail ("eq->getQualifiers() == quals", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2775, __PRETTY_FUNCTION__)); | |||
2776 | return QualType(eq, fastQuals); | |||
2777 | } | |||
2778 | ||||
2779 | // If the base type is not canonical, make the appropriate canonical type. | |||
2780 | QualType canon; | |||
2781 | if (!baseType->isCanonicalUnqualified()) { | |||
2782 | SplitQualType canonSplit = baseType->getCanonicalTypeInternal().split(); | |||
2783 | canonSplit.Quals.addConsistentQualifiers(quals); | |||
2784 | canon = getExtQualType(canonSplit.Ty, canonSplit.Quals); | |||
2785 | ||||
2786 | // Re-find the insert position. | |||
2787 | (void) ExtQualNodes.FindNodeOrInsertPos(ID, insertPos); | |||
2788 | } | |||
2789 | ||||
2790 | auto *eq = new (*this, TypeAlignment) ExtQuals(baseType, canon, quals); | |||
2791 | ExtQualNodes.InsertNode(eq, insertPos); | |||
2792 | return QualType(eq, fastQuals); | |||
2793 | } | |||
2794 | ||||
2795 | QualType ASTContext::getAddrSpaceQualType(QualType T, | |||
2796 | LangAS AddressSpace) const { | |||
2797 | QualType CanT = getCanonicalType(T); | |||
2798 | if (CanT.getAddressSpace() == AddressSpace) | |||
2799 | return T; | |||
2800 | ||||
2801 | // If we are composing extended qualifiers together, merge together | |||
2802 | // into one ExtQuals node. | |||
2803 | QualifierCollector Quals; | |||
2804 | const Type *TypeNode = Quals.strip(T); | |||
2805 | ||||
2806 | // If this type already has an address space specified, it cannot get | |||
2807 | // another one. | |||
2808 | assert(!Quals.hasAddressSpace() &&((!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2809, __PRETTY_FUNCTION__)) | |||
2809 | "Type cannot be in multiple addr spaces!")((!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2809, __PRETTY_FUNCTION__)); | |||
2810 | Quals.addAddressSpace(AddressSpace); | |||
2811 | ||||
2812 | return getExtQualType(TypeNode, Quals); | |||
2813 | } | |||
2814 | ||||
2815 | QualType ASTContext::removeAddrSpaceQualType(QualType T) const { | |||
2816 | // If we are composing extended qualifiers together, merge together | |||
2817 | // into one ExtQuals node. | |||
2818 | QualifierCollector Quals; | |||
2819 | const Type *TypeNode = Quals.strip(T); | |||
2820 | ||||
2821 | // If the qualifier doesn't have an address space just return it. | |||
2822 | if (!Quals.hasAddressSpace()) | |||
2823 | return T; | |||
2824 | ||||
2825 | Quals.removeAddressSpace(); | |||
2826 | ||||
2827 | // Removal of the address space can mean there are no longer any | |||
2828 | // non-fast qualifiers, so creating an ExtQualType isn't possible (asserts) | |||
2829 | // or required. | |||
2830 | if (Quals.hasNonFastQualifiers()) | |||
2831 | return getExtQualType(TypeNode, Quals); | |||
2832 | else | |||
2833 | return QualType(TypeNode, Quals.getFastQualifiers()); | |||
2834 | } | |||
2835 | ||||
2836 | QualType ASTContext::getObjCGCQualType(QualType T, | |||
2837 | Qualifiers::GC GCAttr) const { | |||
2838 | QualType CanT = getCanonicalType(T); | |||
2839 | if (CanT.getObjCGCAttr() == GCAttr) | |||
2840 | return T; | |||
2841 | ||||
2842 | if (const auto *ptr = T->getAs<PointerType>()) { | |||
2843 | QualType Pointee = ptr->getPointeeType(); | |||
2844 | if (Pointee->isAnyPointerType()) { | |||
2845 | QualType ResultType = getObjCGCQualType(Pointee, GCAttr); | |||
2846 | return getPointerType(ResultType); | |||
2847 | } | |||
2848 | } | |||
2849 | ||||
2850 | // If we are composing extended qualifiers together, merge together | |||
2851 | // into one ExtQuals node. | |||
2852 | QualifierCollector Quals; | |||
2853 | const Type *TypeNode = Quals.strip(T); | |||
2854 | ||||
2855 | // If this type already has an ObjCGC specified, it cannot get | |||
2856 | // another one. | |||
2857 | assert(!Quals.hasObjCGCAttr() &&((!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2858, __PRETTY_FUNCTION__)) | |||
2858 | "Type cannot have multiple ObjCGCs!")((!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2858, __PRETTY_FUNCTION__)); | |||
2859 | Quals.addObjCGCAttr(GCAttr); | |||
2860 | ||||
2861 | return getExtQualType(TypeNode, Quals); | |||
2862 | } | |||
2863 | ||||
2864 | QualType ASTContext::removePtrSizeAddrSpace(QualType T) const { | |||
2865 | if (const PointerType *Ptr = T->getAs<PointerType>()) { | |||
2866 | QualType Pointee = Ptr->getPointeeType(); | |||
2867 | if (isPtrSizeAddressSpace(Pointee.getAddressSpace())) { | |||
2868 | return getPointerType(removeAddrSpaceQualType(Pointee)); | |||
2869 | } | |||
2870 | } | |||
2871 | return T; | |||
2872 | } | |||
2873 | ||||
2874 | const FunctionType *ASTContext::adjustFunctionType(const FunctionType *T, | |||
2875 | FunctionType::ExtInfo Info) { | |||
2876 | if (T->getExtInfo() == Info) | |||
2877 | return T; | |||
2878 | ||||
2879 | QualType Result; | |||
2880 | if (const auto *FNPT = dyn_cast<FunctionNoProtoType>(T)) { | |||
2881 | Result = getFunctionNoProtoType(FNPT->getReturnType(), Info); | |||
2882 | } else { | |||
2883 | const auto *FPT = cast<FunctionProtoType>(T); | |||
2884 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
2885 | EPI.ExtInfo = Info; | |||
2886 | Result = getFunctionType(FPT->getReturnType(), FPT->getParamTypes(), EPI); | |||
2887 | } | |||
2888 | ||||
2889 | return cast<FunctionType>(Result.getTypePtr()); | |||
2890 | } | |||
2891 | ||||
2892 | void ASTContext::adjustDeducedFunctionResultType(FunctionDecl *FD, | |||
2893 | QualType ResultType) { | |||
2894 | FD = FD->getMostRecentDecl(); | |||
2895 | while (true) { | |||
2896 | const auto *FPT = FD->getType()->castAs<FunctionProtoType>(); | |||
2897 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
2898 | FD->setType(getFunctionType(ResultType, FPT->getParamTypes(), EPI)); | |||
2899 | if (FunctionDecl *Next = FD->getPreviousDecl()) | |||
2900 | FD = Next; | |||
2901 | else | |||
2902 | break; | |||
2903 | } | |||
2904 | if (ASTMutationListener *L = getASTMutationListener()) | |||
2905 | L->DeducedReturnType(FD, ResultType); | |||
2906 | } | |||
2907 | ||||
2908 | /// Get a function type and produce the equivalent function type with the | |||
2909 | /// specified exception specification. Type sugar that can be present on a | |||
2910 | /// declaration of a function with an exception specification is permitted | |||
2911 | /// and preserved. Other type sugar (for instance, typedefs) is not. | |||
2912 | QualType ASTContext::getFunctionTypeWithExceptionSpec( | |||
2913 | QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI) { | |||
2914 | // Might have some parens. | |||
2915 | if (const auto *PT = dyn_cast<ParenType>(Orig)) | |||
2916 | return getParenType( | |||
2917 | getFunctionTypeWithExceptionSpec(PT->getInnerType(), ESI)); | |||
2918 | ||||
2919 | // Might be wrapped in a macro qualified type. | |||
2920 | if (const auto *MQT = dyn_cast<MacroQualifiedType>(Orig)) | |||
2921 | return getMacroQualifiedType( | |||
2922 | getFunctionTypeWithExceptionSpec(MQT->getUnderlyingType(), ESI), | |||
2923 | MQT->getMacroIdentifier()); | |||
2924 | ||||
2925 | // Might have a calling-convention attribute. | |||
2926 | if (const auto *AT = dyn_cast<AttributedType>(Orig)) | |||
2927 | return getAttributedType( | |||
2928 | AT->getAttrKind(), | |||
2929 | getFunctionTypeWithExceptionSpec(AT->getModifiedType(), ESI), | |||
2930 | getFunctionTypeWithExceptionSpec(AT->getEquivalentType(), ESI)); | |||
2931 | ||||
2932 | // Anything else must be a function type. Rebuild it with the new exception | |||
2933 | // specification. | |||
2934 | const auto *Proto = Orig->castAs<FunctionProtoType>(); | |||
2935 | return getFunctionType( | |||
2936 | Proto->getReturnType(), Proto->getParamTypes(), | |||
2937 | Proto->getExtProtoInfo().withExceptionSpec(ESI)); | |||
2938 | } | |||
2939 | ||||
2940 | bool ASTContext::hasSameFunctionTypeIgnoringExceptionSpec(QualType T, | |||
2941 | QualType U) { | |||
2942 | return hasSameType(T, U) || | |||
2943 | (getLangOpts().CPlusPlus17 && | |||
2944 | hasSameType(getFunctionTypeWithExceptionSpec(T, EST_None), | |||
2945 | getFunctionTypeWithExceptionSpec(U, EST_None))); | |||
2946 | } | |||
2947 | ||||
2948 | QualType ASTContext::getFunctionTypeWithoutPtrSizes(QualType T) { | |||
2949 | if (const auto *Proto = T->getAs<FunctionProtoType>()) { | |||
2950 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
2951 | SmallVector<QualType, 16> Args(Proto->param_types()); | |||
2952 | for (unsigned i = 0, n = Args.size(); i != n; ++i) | |||
2953 | Args[i] = removePtrSizeAddrSpace(Args[i]); | |||
2954 | return getFunctionType(RetTy, Args, Proto->getExtProtoInfo()); | |||
2955 | } | |||
2956 | ||||
2957 | if (const FunctionNoProtoType *Proto = T->getAs<FunctionNoProtoType>()) { | |||
2958 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
2959 | return getFunctionNoProtoType(RetTy, Proto->getExtInfo()); | |||
2960 | } | |||
2961 | ||||
2962 | return T; | |||
2963 | } | |||
2964 | ||||
2965 | bool ASTContext::hasSameFunctionTypeIgnoringPtrSizes(QualType T, QualType U) { | |||
2966 | return hasSameType(T, U) || | |||
2967 | hasSameType(getFunctionTypeWithoutPtrSizes(T), | |||
2968 | getFunctionTypeWithoutPtrSizes(U)); | |||
2969 | } | |||
2970 | ||||
2971 | void ASTContext::adjustExceptionSpec( | |||
2972 | FunctionDecl *FD, const FunctionProtoType::ExceptionSpecInfo &ESI, | |||
2973 | bool AsWritten) { | |||
2974 | // Update the type. | |||
2975 | QualType Updated = | |||
2976 | getFunctionTypeWithExceptionSpec(FD->getType(), ESI); | |||
2977 | FD->setType(Updated); | |||
2978 | ||||
2979 | if (!AsWritten) | |||
2980 | return; | |||
2981 | ||||
2982 | // Update the type in the type source information too. | |||
2983 | if (TypeSourceInfo *TSInfo = FD->getTypeSourceInfo()) { | |||
2984 | // If the type and the type-as-written differ, we may need to update | |||
2985 | // the type-as-written too. | |||
2986 | if (TSInfo->getType() != FD->getType()) | |||
2987 | Updated = getFunctionTypeWithExceptionSpec(TSInfo->getType(), ESI); | |||
2988 | ||||
2989 | // FIXME: When we get proper type location information for exceptions, | |||
2990 | // we'll also have to rebuild the TypeSourceInfo. For now, we just patch | |||
2991 | // up the TypeSourceInfo; | |||
2992 | assert(TypeLoc::getFullDataSizeForType(Updated) ==((TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType (TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? static_cast<void> (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2994, __PRETTY_FUNCTION__)) | |||
2993 | TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&((TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType (TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? static_cast<void> (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2994, __PRETTY_FUNCTION__)) | |||
2994 | "TypeLoc size mismatch from updating exception specification")((TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType (TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? static_cast<void> (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 2994, __PRETTY_FUNCTION__)); | |||
2995 | TSInfo->overrideType(Updated); | |||
2996 | } | |||
2997 | } | |||
2998 | ||||
2999 | /// getComplexType - Return the uniqued reference to the type for a complex | |||
3000 | /// number with the specified element type. | |||
3001 | QualType ASTContext::getComplexType(QualType T) const { | |||
3002 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3003 | // structure. | |||
3004 | llvm::FoldingSetNodeID ID; | |||
3005 | ComplexType::Profile(ID, T); | |||
3006 | ||||
3007 | void *InsertPos = nullptr; | |||
3008 | if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3009 | return QualType(CT, 0); | |||
3010 | ||||
3011 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
3012 | // so fill in the canonical type field. | |||
3013 | QualType Canonical; | |||
3014 | if (!T.isCanonical()) { | |||
3015 | Canonical = getComplexType(getCanonicalType(T)); | |||
3016 | ||||
3017 | // Get the new insert position for the node we care about. | |||
3018 | ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3019 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3019, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3020 | } | |||
3021 | auto *New = new (*this, TypeAlignment) ComplexType(T, Canonical); | |||
3022 | Types.push_back(New); | |||
3023 | ComplexTypes.InsertNode(New, InsertPos); | |||
3024 | return QualType(New, 0); | |||
3025 | } | |||
3026 | ||||
3027 | /// getPointerType - Return the uniqued reference to the type for a pointer to | |||
3028 | /// the specified type. | |||
3029 | QualType ASTContext::getPointerType(QualType T) const { | |||
3030 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3031 | // structure. | |||
3032 | llvm::FoldingSetNodeID ID; | |||
3033 | PointerType::Profile(ID, T); | |||
3034 | ||||
3035 | void *InsertPos = nullptr; | |||
3036 | if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3037 | return QualType(PT, 0); | |||
3038 | ||||
3039 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
3040 | // so fill in the canonical type field. | |||
3041 | QualType Canonical; | |||
3042 | if (!T.isCanonical()) { | |||
3043 | Canonical = getPointerType(getCanonicalType(T)); | |||
3044 | ||||
3045 | // Get the new insert position for the node we care about. | |||
3046 | PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3047 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3047, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3048 | } | |||
3049 | auto *New = new (*this, TypeAlignment) PointerType(T, Canonical); | |||
3050 | Types.push_back(New); | |||
3051 | PointerTypes.InsertNode(New, InsertPos); | |||
3052 | return QualType(New, 0); | |||
3053 | } | |||
3054 | ||||
3055 | QualType ASTContext::getAdjustedType(QualType Orig, QualType New) const { | |||
3056 | llvm::FoldingSetNodeID ID; | |||
3057 | AdjustedType::Profile(ID, Orig, New); | |||
3058 | void *InsertPos = nullptr; | |||
3059 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3060 | if (AT) | |||
3061 | return QualType(AT, 0); | |||
3062 | ||||
3063 | QualType Canonical = getCanonicalType(New); | |||
3064 | ||||
3065 | // Get the new insert position for the node we care about. | |||
3066 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3067 | assert(!AT && "Shouldn't be in the map!")((!AT && "Shouldn't be in the map!") ? static_cast< void> (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3067, __PRETTY_FUNCTION__)); | |||
3068 | ||||
3069 | AT = new (*this, TypeAlignment) | |||
3070 | AdjustedType(Type::Adjusted, Orig, New, Canonical); | |||
3071 | Types.push_back(AT); | |||
3072 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
3073 | return QualType(AT, 0); | |||
3074 | } | |||
3075 | ||||
3076 | QualType ASTContext::getDecayedType(QualType T) const { | |||
3077 | assert((T->isArrayType() || T->isFunctionType()) && "T does not decay")(((T->isArrayType() || T->isFunctionType()) && "T does not decay" ) ? static_cast<void> (0) : __assert_fail ("(T->isArrayType() || T->isFunctionType()) && \"T does not decay\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3077, __PRETTY_FUNCTION__)); | |||
3078 | ||||
3079 | QualType Decayed; | |||
3080 | ||||
3081 | // C99 6.7.5.3p7: | |||
3082 | // A declaration of a parameter as "array of type" shall be | |||
3083 | // adjusted to "qualified pointer to type", where the type | |||
3084 | // qualifiers (if any) are those specified within the [ and ] of | |||
3085 | // the array type derivation. | |||
3086 | if (T->isArrayType()) | |||
3087 | Decayed = getArrayDecayedType(T); | |||
3088 | ||||
3089 | // C99 6.7.5.3p8: | |||
3090 | // A declaration of a parameter as "function returning type" | |||
3091 | // shall be adjusted to "pointer to function returning type", as | |||
3092 | // in 6.3.2.1. | |||
3093 | if (T->isFunctionType()) | |||
3094 | Decayed = getPointerType(T); | |||
3095 | ||||
3096 | llvm::FoldingSetNodeID ID; | |||
3097 | AdjustedType::Profile(ID, T, Decayed); | |||
3098 | void *InsertPos = nullptr; | |||
3099 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3100 | if (AT) | |||
3101 | return QualType(AT, 0); | |||
3102 | ||||
3103 | QualType Canonical = getCanonicalType(Decayed); | |||
3104 | ||||
3105 | // Get the new insert position for the node we care about. | |||
3106 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3107 | assert(!AT && "Shouldn't be in the map!")((!AT && "Shouldn't be in the map!") ? static_cast< void> (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3107, __PRETTY_FUNCTION__)); | |||
3108 | ||||
3109 | AT = new (*this, TypeAlignment) DecayedType(T, Decayed, Canonical); | |||
3110 | Types.push_back(AT); | |||
3111 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
3112 | return QualType(AT, 0); | |||
3113 | } | |||
3114 | ||||
3115 | /// getBlockPointerType - Return the uniqued reference to the type for | |||
3116 | /// a pointer to the specified block. | |||
3117 | QualType ASTContext::getBlockPointerType(QualType T) const { | |||
3118 | assert(T->isFunctionType() && "block of function types only")((T->isFunctionType() && "block of function types only" ) ? static_cast<void> (0) : __assert_fail ("T->isFunctionType() && \"block of function types only\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3118, __PRETTY_FUNCTION__)); | |||
3119 | // Unique pointers, to guarantee there is only one block of a particular | |||
3120 | // structure. | |||
3121 | llvm::FoldingSetNodeID ID; | |||
3122 | BlockPointerType::Profile(ID, T); | |||
3123 | ||||
3124 | void *InsertPos = nullptr; | |||
3125 | if (BlockPointerType *PT = | |||
3126 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3127 | return QualType(PT, 0); | |||
3128 | ||||
3129 | // If the block pointee type isn't canonical, this won't be a canonical | |||
3130 | // type either so fill in the canonical type field. | |||
3131 | QualType Canonical; | |||
3132 | if (!T.isCanonical()) { | |||
3133 | Canonical = getBlockPointerType(getCanonicalType(T)); | |||
3134 | ||||
3135 | // Get the new insert position for the node we care about. | |||
3136 | BlockPointerType *NewIP = | |||
3137 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3138 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3138, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3139 | } | |||
3140 | auto *New = new (*this, TypeAlignment) BlockPointerType(T, Canonical); | |||
3141 | Types.push_back(New); | |||
3142 | BlockPointerTypes.InsertNode(New, InsertPos); | |||
3143 | return QualType(New, 0); | |||
3144 | } | |||
3145 | ||||
3146 | /// getLValueReferenceType - Return the uniqued reference to the type for an | |||
3147 | /// lvalue reference to the specified type. | |||
3148 | QualType | |||
3149 | ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) const { | |||
3150 | assert(getCanonicalType(T) != OverloadTy &&((getCanonicalType(T) != OverloadTy && "Unresolved overloaded function type" ) ? static_cast<void> (0) : __assert_fail ("getCanonicalType(T) != OverloadTy && \"Unresolved overloaded function type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3151, __PRETTY_FUNCTION__)) | |||
3151 | "Unresolved overloaded function type")((getCanonicalType(T) != OverloadTy && "Unresolved overloaded function type" ) ? static_cast<void> (0) : __assert_fail ("getCanonicalType(T) != OverloadTy && \"Unresolved overloaded function type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3151, __PRETTY_FUNCTION__)); | |||
3152 | ||||
3153 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3154 | // structure. | |||
3155 | llvm::FoldingSetNodeID ID; | |||
3156 | ReferenceType::Profile(ID, T, SpelledAsLValue); | |||
3157 | ||||
3158 | void *InsertPos = nullptr; | |||
3159 | if (LValueReferenceType *RT = | |||
3160 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3161 | return QualType(RT, 0); | |||
3162 | ||||
3163 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
3164 | ||||
3165 | // If the referencee type isn't canonical, this won't be a canonical type | |||
3166 | // either, so fill in the canonical type field. | |||
3167 | QualType Canonical; | |||
3168 | if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { | |||
3169 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
3170 | Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); | |||
3171 | ||||
3172 | // Get the new insert position for the node we care about. | |||
3173 | LValueReferenceType *NewIP = | |||
3174 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3175 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3175, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3176 | } | |||
3177 | ||||
3178 | auto *New = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, | |||
3179 | SpelledAsLValue); | |||
3180 | Types.push_back(New); | |||
3181 | LValueReferenceTypes.InsertNode(New, InsertPos); | |||
3182 | ||||
3183 | return QualType(New, 0); | |||
3184 | } | |||
3185 | ||||
3186 | /// getRValueReferenceType - Return the uniqued reference to the type for an | |||
3187 | /// rvalue reference to the specified type. | |||
3188 | QualType ASTContext::getRValueReferenceType(QualType T) const { | |||
3189 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3190 | // structure. | |||
3191 | llvm::FoldingSetNodeID ID; | |||
3192 | ReferenceType::Profile(ID, T, false); | |||
3193 | ||||
3194 | void *InsertPos = nullptr; | |||
3195 | if (RValueReferenceType *RT = | |||
3196 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3197 | return QualType(RT, 0); | |||
3198 | ||||
3199 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
3200 | ||||
3201 | // If the referencee type isn't canonical, this won't be a canonical type | |||
3202 | // either, so fill in the canonical type field. | |||
3203 | QualType Canonical; | |||
3204 | if (InnerRef || !T.isCanonical()) { | |||
3205 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
3206 | Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); | |||
3207 | ||||
3208 | // Get the new insert position for the node we care about. | |||
3209 | RValueReferenceType *NewIP = | |||
3210 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3211 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3211, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3212 | } | |||
3213 | ||||
3214 | auto *New = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); | |||
3215 | Types.push_back(New); | |||
3216 | RValueReferenceTypes.InsertNode(New, InsertPos); | |||
3217 | return QualType(New, 0); | |||
3218 | } | |||
3219 | ||||
3220 | /// getMemberPointerType - Return the uniqued reference to the type for a | |||
3221 | /// member pointer to the specified type, in the specified class. | |||
3222 | QualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) const { | |||
3223 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3224 | // structure. | |||
3225 | llvm::FoldingSetNodeID ID; | |||
3226 | MemberPointerType::Profile(ID, T, Cls); | |||
3227 | ||||
3228 | void *InsertPos = nullptr; | |||
3229 | if (MemberPointerType *PT = | |||
3230 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3231 | return QualType(PT, 0); | |||
3232 | ||||
3233 | // If the pointee or class type isn't canonical, this won't be a canonical | |||
3234 | // type either, so fill in the canonical type field. | |||
3235 | QualType Canonical; | |||
3236 | if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { | |||
3237 | Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); | |||
3238 | ||||
3239 | // Get the new insert position for the node we care about. | |||
3240 | MemberPointerType *NewIP = | |||
3241 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3242 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3242, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3243 | } | |||
3244 | auto *New = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); | |||
3245 | Types.push_back(New); | |||
3246 | MemberPointerTypes.InsertNode(New, InsertPos); | |||
3247 | return QualType(New, 0); | |||
3248 | } | |||
3249 | ||||
3250 | /// getConstantArrayType - Return the unique reference to the type for an | |||
3251 | /// array of the specified element type. | |||
3252 | QualType ASTContext::getConstantArrayType(QualType EltTy, | |||
3253 | const llvm::APInt &ArySizeIn, | |||
3254 | const Expr *SizeExpr, | |||
3255 | ArrayType::ArraySizeModifier ASM, | |||
3256 | unsigned IndexTypeQuals) const { | |||
3257 | assert((EltTy->isDependentType() ||(((EltTy->isDependentType() || EltTy->isIncompleteType( ) || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!" ) ? static_cast<void> (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3259, __PRETTY_FUNCTION__)) | |||
3258 | EltTy->isIncompleteType() || EltTy->isConstantSizeType()) &&(((EltTy->isDependentType() || EltTy->isIncompleteType( ) || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!" ) ? static_cast<void> (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3259, __PRETTY_FUNCTION__)) | |||
3259 | "Constant array of VLAs is illegal!")(((EltTy->isDependentType() || EltTy->isIncompleteType( ) || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!" ) ? static_cast<void> (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3259, __PRETTY_FUNCTION__)); | |||
3260 | ||||
3261 | // We only need the size as part of the type if it's instantiation-dependent. | |||
3262 | if (SizeExpr && !SizeExpr->isInstantiationDependent()) | |||
3263 | SizeExpr = nullptr; | |||
3264 | ||||
3265 | // Convert the array size into a canonical width matching the pointer size for | |||
3266 | // the target. | |||
3267 | llvm::APInt ArySize(ArySizeIn); | |||
3268 | ArySize = ArySize.zextOrTrunc(Target->getMaxPointerWidth()); | |||
3269 | ||||
3270 | llvm::FoldingSetNodeID ID; | |||
3271 | ConstantArrayType::Profile(ID, *this, EltTy, ArySize, SizeExpr, ASM, | |||
3272 | IndexTypeQuals); | |||
3273 | ||||
3274 | void *InsertPos = nullptr; | |||
3275 | if (ConstantArrayType *ATP = | |||
3276 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3277 | return QualType(ATP, 0); | |||
3278 | ||||
3279 | // If the element type isn't canonical or has qualifiers, or the array bound | |||
3280 | // is instantiation-dependent, this won't be a canonical type either, so fill | |||
3281 | // in the canonical type field. | |||
3282 | QualType Canon; | |||
3283 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers() || SizeExpr) { | |||
3284 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
3285 | Canon = getConstantArrayType(QualType(canonSplit.Ty, 0), ArySize, nullptr, | |||
3286 | ASM, IndexTypeQuals); | |||
3287 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
3288 | ||||
3289 | // Get the new insert position for the node we care about. | |||
3290 | ConstantArrayType *NewIP = | |||
3291 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3292 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3292, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3293 | } | |||
3294 | ||||
3295 | void *Mem = Allocate( | |||
3296 | ConstantArrayType::totalSizeToAlloc<const Expr *>(SizeExpr ? 1 : 0), | |||
3297 | TypeAlignment); | |||
3298 | auto *New = new (Mem) | |||
3299 | ConstantArrayType(EltTy, Canon, ArySize, SizeExpr, ASM, IndexTypeQuals); | |||
3300 | ConstantArrayTypes.InsertNode(New, InsertPos); | |||
3301 | Types.push_back(New); | |||
3302 | return QualType(New, 0); | |||
3303 | } | |||
3304 | ||||
3305 | /// getVariableArrayDecayedType - Turns the given type, which may be | |||
3306 | /// variably-modified, into the corresponding type with all the known | |||
3307 | /// sizes replaced with [*]. | |||
3308 | QualType ASTContext::getVariableArrayDecayedType(QualType type) const { | |||
3309 | // Vastly most common case. | |||
3310 | if (!type->isVariablyModifiedType()) return type; | |||
3311 | ||||
3312 | QualType result; | |||
3313 | ||||
3314 | SplitQualType split = type.getSplitDesugaredType(); | |||
3315 | const Type *ty = split.Ty; | |||
3316 | switch (ty->getTypeClass()) { | |||
3317 | #define TYPE(Class, Base) | |||
3318 | #define ABSTRACT_TYPE(Class, Base) | |||
3319 | #define NON_CANONICAL_TYPE(Class, Base) case Type::Class: | |||
3320 | #include "clang/AST/TypeNodes.inc" | |||
3321 | llvm_unreachable("didn't desugar past all non-canonical types?")::llvm::llvm_unreachable_internal("didn't desugar past all non-canonical types?" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3321); | |||
3322 | ||||
3323 | // These types should never be variably-modified. | |||
3324 | case Type::Builtin: | |||
3325 | case Type::Complex: | |||
3326 | case Type::Vector: | |||
3327 | case Type::DependentVector: | |||
3328 | case Type::ExtVector: | |||
3329 | case Type::DependentSizedExtVector: | |||
3330 | case Type::DependentAddressSpace: | |||
3331 | case Type::ObjCObject: | |||
3332 | case Type::ObjCInterface: | |||
3333 | case Type::ObjCObjectPointer: | |||
3334 | case Type::Record: | |||
3335 | case Type::Enum: | |||
3336 | case Type::UnresolvedUsing: | |||
3337 | case Type::TypeOfExpr: | |||
3338 | case Type::TypeOf: | |||
3339 | case Type::Decltype: | |||
3340 | case Type::UnaryTransform: | |||
3341 | case Type::DependentName: | |||
3342 | case Type::InjectedClassName: | |||
3343 | case Type::TemplateSpecialization: | |||
3344 | case Type::DependentTemplateSpecialization: | |||
3345 | case Type::TemplateTypeParm: | |||
3346 | case Type::SubstTemplateTypeParmPack: | |||
3347 | case Type::Auto: | |||
3348 | case Type::DeducedTemplateSpecialization: | |||
3349 | case Type::PackExpansion: | |||
3350 | llvm_unreachable("type should never be variably-modified")::llvm::llvm_unreachable_internal("type should never be variably-modified" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3350); | |||
3351 | ||||
3352 | // These types can be variably-modified but should never need to | |||
3353 | // further decay. | |||
3354 | case Type::FunctionNoProto: | |||
3355 | case Type::FunctionProto: | |||
3356 | case Type::BlockPointer: | |||
3357 | case Type::MemberPointer: | |||
3358 | case Type::Pipe: | |||
3359 | return type; | |||
3360 | ||||
3361 | // These types can be variably-modified. All these modifications | |||
3362 | // preserve structure except as noted by comments. | |||
3363 | // TODO: if we ever care about optimizing VLAs, there are no-op | |||
3364 | // optimizations available here. | |||
3365 | case Type::Pointer: | |||
3366 | result = getPointerType(getVariableArrayDecayedType( | |||
3367 | cast<PointerType>(ty)->getPointeeType())); | |||
3368 | break; | |||
3369 | ||||
3370 | case Type::LValueReference: { | |||
3371 | const auto *lv = cast<LValueReferenceType>(ty); | |||
3372 | result = getLValueReferenceType( | |||
3373 | getVariableArrayDecayedType(lv->getPointeeType()), | |||
3374 | lv->isSpelledAsLValue()); | |||
3375 | break; | |||
3376 | } | |||
3377 | ||||
3378 | case Type::RValueReference: { | |||
3379 | const auto *lv = cast<RValueReferenceType>(ty); | |||
3380 | result = getRValueReferenceType( | |||
3381 | getVariableArrayDecayedType(lv->getPointeeType())); | |||
3382 | break; | |||
3383 | } | |||
3384 | ||||
3385 | case Type::Atomic: { | |||
3386 | const auto *at = cast<AtomicType>(ty); | |||
3387 | result = getAtomicType(getVariableArrayDecayedType(at->getValueType())); | |||
3388 | break; | |||
3389 | } | |||
3390 | ||||
3391 | case Type::ConstantArray: { | |||
3392 | const auto *cat = cast<ConstantArrayType>(ty); | |||
3393 | result = getConstantArrayType( | |||
3394 | getVariableArrayDecayedType(cat->getElementType()), | |||
3395 | cat->getSize(), | |||
3396 | cat->getSizeExpr(), | |||
3397 | cat->getSizeModifier(), | |||
3398 | cat->getIndexTypeCVRQualifiers()); | |||
3399 | break; | |||
3400 | } | |||
3401 | ||||
3402 | case Type::DependentSizedArray: { | |||
3403 | const auto *dat = cast<DependentSizedArrayType>(ty); | |||
3404 | result = getDependentSizedArrayType( | |||
3405 | getVariableArrayDecayedType(dat->getElementType()), | |||
3406 | dat->getSizeExpr(), | |||
3407 | dat->getSizeModifier(), | |||
3408 | dat->getIndexTypeCVRQualifiers(), | |||
3409 | dat->getBracketsRange()); | |||
3410 | break; | |||
3411 | } | |||
3412 | ||||
3413 | // Turn incomplete types into [*] types. | |||
3414 | case Type::IncompleteArray: { | |||
3415 | const auto *iat = cast<IncompleteArrayType>(ty); | |||
3416 | result = getVariableArrayType( | |||
3417 | getVariableArrayDecayedType(iat->getElementType()), | |||
3418 | /*size*/ nullptr, | |||
3419 | ArrayType::Normal, | |||
3420 | iat->getIndexTypeCVRQualifiers(), | |||
3421 | SourceRange()); | |||
3422 | break; | |||
3423 | } | |||
3424 | ||||
3425 | // Turn VLA types into [*] types. | |||
3426 | case Type::VariableArray: { | |||
3427 | const auto *vat = cast<VariableArrayType>(ty); | |||
3428 | result = getVariableArrayType( | |||
3429 | getVariableArrayDecayedType(vat->getElementType()), | |||
3430 | /*size*/ nullptr, | |||
3431 | ArrayType::Star, | |||
3432 | vat->getIndexTypeCVRQualifiers(), | |||
3433 | vat->getBracketsRange()); | |||
3434 | break; | |||
3435 | } | |||
3436 | } | |||
3437 | ||||
3438 | // Apply the top-level qualifiers from the original. | |||
3439 | return getQualifiedType(result, split.Quals); | |||
3440 | } | |||
3441 | ||||
3442 | /// getVariableArrayType - Returns a non-unique reference to the type for a | |||
3443 | /// variable array of the specified element type. | |||
3444 | QualType ASTContext::getVariableArrayType(QualType EltTy, | |||
3445 | Expr *NumElts, | |||
3446 | ArrayType::ArraySizeModifier ASM, | |||
3447 | unsigned IndexTypeQuals, | |||
3448 | SourceRange Brackets) const { | |||
3449 | // Since we don't unique expressions, it isn't possible to unique VLA's | |||
3450 | // that have an expression provided for their size. | |||
3451 | QualType Canon; | |||
3452 | ||||
3453 | // Be sure to pull qualifiers off the element type. | |||
3454 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers()) { | |||
3455 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
3456 | Canon = getVariableArrayType(QualType(canonSplit.Ty, 0), NumElts, ASM, | |||
3457 | IndexTypeQuals, Brackets); | |||
3458 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
3459 | } | |||
3460 | ||||
3461 | auto *New = new (*this, TypeAlignment) | |||
3462 | VariableArrayType(EltTy, Canon, NumElts, ASM, IndexTypeQuals, Brackets); | |||
3463 | ||||
3464 | VariableArrayTypes.push_back(New); | |||
3465 | Types.push_back(New); | |||
3466 | return QualType(New, 0); | |||
3467 | } | |||
3468 | ||||
3469 | /// getDependentSizedArrayType - Returns a non-unique reference to | |||
3470 | /// the type for a dependently-sized array of the specified element | |||
3471 | /// type. | |||
3472 | QualType ASTContext::getDependentSizedArrayType(QualType elementType, | |||
3473 | Expr *numElements, | |||
3474 | ArrayType::ArraySizeModifier ASM, | |||
3475 | unsigned elementTypeQuals, | |||
3476 | SourceRange brackets) const { | |||
3477 | assert((!numElements || numElements->isTypeDependent() ||(((!numElements || numElements->isTypeDependent() || numElements ->isValueDependent()) && "Size must be type- or value-dependent!" ) ? static_cast<void> (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3479, __PRETTY_FUNCTION__)) | |||
3478 | numElements->isValueDependent()) &&(((!numElements || numElements->isTypeDependent() || numElements ->isValueDependent()) && "Size must be type- or value-dependent!" ) ? static_cast<void> (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3479, __PRETTY_FUNCTION__)) | |||
3479 | "Size must be type- or value-dependent!")(((!numElements || numElements->isTypeDependent() || numElements ->isValueDependent()) && "Size must be type- or value-dependent!" ) ? static_cast<void> (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3479, __PRETTY_FUNCTION__)); | |||
3480 | ||||
3481 | // Dependently-sized array types that do not have a specified number | |||
3482 | // of elements will have their sizes deduced from a dependent | |||
3483 | // initializer. We do no canonicalization here at all, which is okay | |||
3484 | // because they can't be used in most locations. | |||
3485 | if (!numElements) { | |||
3486 | auto *newType | |||
3487 | = new (*this, TypeAlignment) | |||
3488 | DependentSizedArrayType(*this, elementType, QualType(), | |||
3489 | numElements, ASM, elementTypeQuals, | |||
3490 | brackets); | |||
3491 | Types.push_back(newType); | |||
3492 | return QualType(newType, 0); | |||
3493 | } | |||
3494 | ||||
3495 | // Otherwise, we actually build a new type every time, but we | |||
3496 | // also build a canonical type. | |||
3497 | ||||
3498 | SplitQualType canonElementType = getCanonicalType(elementType).split(); | |||
3499 | ||||
3500 | void *insertPos = nullptr; | |||
3501 | llvm::FoldingSetNodeID ID; | |||
3502 | DependentSizedArrayType::Profile(ID, *this, | |||
3503 | QualType(canonElementType.Ty, 0), | |||
3504 | ASM, elementTypeQuals, numElements); | |||
3505 | ||||
3506 | // Look for an existing type with these properties. | |||
3507 | DependentSizedArrayType *canonTy = | |||
3508 | DependentSizedArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3509 | ||||
3510 | // If we don't have one, build one. | |||
3511 | if (!canonTy) { | |||
3512 | canonTy = new (*this, TypeAlignment) | |||
3513 | DependentSizedArrayType(*this, QualType(canonElementType.Ty, 0), | |||
3514 | QualType(), numElements, ASM, elementTypeQuals, | |||
3515 | brackets); | |||
3516 | DependentSizedArrayTypes.InsertNode(canonTy, insertPos); | |||
3517 | Types.push_back(canonTy); | |||
3518 | } | |||
3519 | ||||
3520 | // Apply qualifiers from the element type to the array. | |||
3521 | QualType canon = getQualifiedType(QualType(canonTy,0), | |||
3522 | canonElementType.Quals); | |||
3523 | ||||
3524 | // If we didn't need extra canonicalization for the element type or the size | |||
3525 | // expression, then just use that as our result. | |||
3526 | if (QualType(canonElementType.Ty, 0) == elementType && | |||
3527 | canonTy->getSizeExpr() == numElements) | |||
3528 | return canon; | |||
3529 | ||||
3530 | // Otherwise, we need to build a type which follows the spelling | |||
3531 | // of the element type. | |||
3532 | auto *sugaredType | |||
3533 | = new (*this, TypeAlignment) | |||
3534 | DependentSizedArrayType(*this, elementType, canon, numElements, | |||
3535 | ASM, elementTypeQuals, brackets); | |||
3536 | Types.push_back(sugaredType); | |||
3537 | return QualType(sugaredType, 0); | |||
3538 | } | |||
3539 | ||||
3540 | QualType ASTContext::getIncompleteArrayType(QualType elementType, | |||
3541 | ArrayType::ArraySizeModifier ASM, | |||
3542 | unsigned elementTypeQuals) const { | |||
3543 | llvm::FoldingSetNodeID ID; | |||
3544 | IncompleteArrayType::Profile(ID, elementType, ASM, elementTypeQuals); | |||
3545 | ||||
3546 | void *insertPos = nullptr; | |||
3547 | if (IncompleteArrayType *iat = | |||
3548 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos)) | |||
3549 | return QualType(iat, 0); | |||
3550 | ||||
3551 | // If the element type isn't canonical, this won't be a canonical type | |||
3552 | // either, so fill in the canonical type field. We also have to pull | |||
3553 | // qualifiers off the element type. | |||
3554 | QualType canon; | |||
3555 | ||||
3556 | if (!elementType.isCanonical() || elementType.hasLocalQualifiers()) { | |||
3557 | SplitQualType canonSplit = getCanonicalType(elementType).split(); | |||
3558 | canon = getIncompleteArrayType(QualType(canonSplit.Ty, 0), | |||
3559 | ASM, elementTypeQuals); | |||
3560 | canon = getQualifiedType(canon, canonSplit.Quals); | |||
3561 | ||||
3562 | // Get the new insert position for the node we care about. | |||
3563 | IncompleteArrayType *existing = | |||
3564 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3565 | assert(!existing && "Shouldn't be in the map!")((!existing && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!existing && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3565, __PRETTY_FUNCTION__)); (void) existing; | |||
3566 | } | |||
3567 | ||||
3568 | auto *newType = new (*this, TypeAlignment) | |||
3569 | IncompleteArrayType(elementType, canon, ASM, elementTypeQuals); | |||
3570 | ||||
3571 | IncompleteArrayTypes.InsertNode(newType, insertPos); | |||
3572 | Types.push_back(newType); | |||
3573 | return QualType(newType, 0); | |||
3574 | } | |||
3575 | ||||
3576 | /// getVectorType - Return the unique reference to a vector type of | |||
3577 | /// the specified element type and size. VectorType must be a built-in type. | |||
3578 | QualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, | |||
3579 | VectorType::VectorKind VecKind) const { | |||
3580 | assert(vecType->isBuiltinType())((vecType->isBuiltinType()) ? static_cast<void> (0) : __assert_fail ("vecType->isBuiltinType()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3580, __PRETTY_FUNCTION__)); | |||
3581 | ||||
3582 | // Check if we've already instantiated a vector of this type. | |||
3583 | llvm::FoldingSetNodeID ID; | |||
3584 | VectorType::Profile(ID, vecType, NumElts, Type::Vector, VecKind); | |||
3585 | ||||
3586 | void *InsertPos = nullptr; | |||
3587 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3588 | return QualType(VTP, 0); | |||
3589 | ||||
3590 | // If the element type isn't canonical, this won't be a canonical type either, | |||
3591 | // so fill in the canonical type field. | |||
3592 | QualType Canonical; | |||
3593 | if (!vecType.isCanonical()) { | |||
3594 | Canonical = getVectorType(getCanonicalType(vecType), NumElts, VecKind); | |||
3595 | ||||
3596 | // Get the new insert position for the node we care about. | |||
3597 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3598 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3598, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3599 | } | |||
3600 | auto *New = new (*this, TypeAlignment) | |||
3601 | VectorType(vecType, NumElts, Canonical, VecKind); | |||
3602 | VectorTypes.InsertNode(New, InsertPos); | |||
3603 | Types.push_back(New); | |||
3604 | return QualType(New, 0); | |||
3605 | } | |||
3606 | ||||
3607 | QualType | |||
3608 | ASTContext::getDependentVectorType(QualType VecType, Expr *SizeExpr, | |||
3609 | SourceLocation AttrLoc, | |||
3610 | VectorType::VectorKind VecKind) const { | |||
3611 | llvm::FoldingSetNodeID ID; | |||
3612 | DependentVectorType::Profile(ID, *this, getCanonicalType(VecType), SizeExpr, | |||
3613 | VecKind); | |||
3614 | void *InsertPos = nullptr; | |||
3615 | DependentVectorType *Canon = | |||
3616 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3617 | DependentVectorType *New; | |||
3618 | ||||
3619 | if (Canon) { | |||
3620 | New = new (*this, TypeAlignment) DependentVectorType( | |||
3621 | *this, VecType, QualType(Canon, 0), SizeExpr, AttrLoc, VecKind); | |||
3622 | } else { | |||
3623 | QualType CanonVecTy = getCanonicalType(VecType); | |||
3624 | if (CanonVecTy == VecType) { | |||
3625 | New = new (*this, TypeAlignment) DependentVectorType( | |||
3626 | *this, VecType, QualType(), SizeExpr, AttrLoc, VecKind); | |||
3627 | ||||
3628 | DependentVectorType *CanonCheck = | |||
3629 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3630 | assert(!CanonCheck &&((!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3631, __PRETTY_FUNCTION__)) | |||
3631 | "Dependent-sized vector_size canonical type broken")((!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3631, __PRETTY_FUNCTION__)); | |||
3632 | (void)CanonCheck; | |||
3633 | DependentVectorTypes.InsertNode(New, InsertPos); | |||
3634 | } else { | |||
3635 | QualType CanonExtTy = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, | |||
3636 | SourceLocation()); | |||
3637 | New = new (*this, TypeAlignment) DependentVectorType( | |||
3638 | *this, VecType, CanonExtTy, SizeExpr, AttrLoc, VecKind); | |||
3639 | } | |||
3640 | } | |||
3641 | ||||
3642 | Types.push_back(New); | |||
3643 | return QualType(New, 0); | |||
3644 | } | |||
3645 | ||||
3646 | /// getExtVectorType - Return the unique reference to an extended vector type of | |||
3647 | /// the specified element type and size. VectorType must be a built-in type. | |||
3648 | QualType | |||
3649 | ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) const { | |||
3650 | assert(vecType->isBuiltinType() || vecType->isDependentType())((vecType->isBuiltinType() || vecType->isDependentType( )) ? static_cast<void> (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType()" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3650, __PRETTY_FUNCTION__)); | |||
3651 | ||||
3652 | // Check if we've already instantiated a vector of this type. | |||
3653 | llvm::FoldingSetNodeID ID; | |||
3654 | VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, | |||
3655 | VectorType::GenericVector); | |||
3656 | void *InsertPos = nullptr; | |||
3657 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3658 | return QualType(VTP, 0); | |||
3659 | ||||
3660 | // If the element type isn't canonical, this won't be a canonical type either, | |||
3661 | // so fill in the canonical type field. | |||
3662 | QualType Canonical; | |||
3663 | if (!vecType.isCanonical()) { | |||
3664 | Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); | |||
3665 | ||||
3666 | // Get the new insert position for the node we care about. | |||
3667 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3668 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3668, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3669 | } | |||
3670 | auto *New = new (*this, TypeAlignment) | |||
3671 | ExtVectorType(vecType, NumElts, Canonical); | |||
3672 | VectorTypes.InsertNode(New, InsertPos); | |||
3673 | Types.push_back(New); | |||
3674 | return QualType(New, 0); | |||
3675 | } | |||
3676 | ||||
3677 | QualType | |||
3678 | ASTContext::getDependentSizedExtVectorType(QualType vecType, | |||
3679 | Expr *SizeExpr, | |||
3680 | SourceLocation AttrLoc) const { | |||
3681 | llvm::FoldingSetNodeID ID; | |||
3682 | DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), | |||
3683 | SizeExpr); | |||
3684 | ||||
3685 | void *InsertPos = nullptr; | |||
3686 | DependentSizedExtVectorType *Canon | |||
3687 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3688 | DependentSizedExtVectorType *New; | |||
3689 | if (Canon) { | |||
3690 | // We already have a canonical version of this array type; use it as | |||
3691 | // the canonical type for a newly-built type. | |||
3692 | New = new (*this, TypeAlignment) | |||
3693 | DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), | |||
3694 | SizeExpr, AttrLoc); | |||
3695 | } else { | |||
3696 | QualType CanonVecTy = getCanonicalType(vecType); | |||
3697 | if (CanonVecTy == vecType) { | |||
3698 | New = new (*this, TypeAlignment) | |||
3699 | DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, | |||
3700 | AttrLoc); | |||
3701 | ||||
3702 | DependentSizedExtVectorType *CanonCheck | |||
3703 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3704 | assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken")((!CanonCheck && "Dependent-sized ext_vector canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized ext_vector canonical type broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3704, __PRETTY_FUNCTION__)); | |||
3705 | (void)CanonCheck; | |||
3706 | DependentSizedExtVectorTypes.InsertNode(New, InsertPos); | |||
3707 | } else { | |||
3708 | QualType CanonExtTy = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, | |||
3709 | SourceLocation()); | |||
3710 | New = new (*this, TypeAlignment) DependentSizedExtVectorType( | |||
3711 | *this, vecType, CanonExtTy, SizeExpr, AttrLoc); | |||
3712 | } | |||
3713 | } | |||
3714 | ||||
3715 | Types.push_back(New); | |||
3716 | return QualType(New, 0); | |||
3717 | } | |||
3718 | ||||
3719 | QualType ASTContext::getDependentAddressSpaceType(QualType PointeeType, | |||
3720 | Expr *AddrSpaceExpr, | |||
3721 | SourceLocation AttrLoc) const { | |||
3722 | assert(AddrSpaceExpr->isInstantiationDependent())((AddrSpaceExpr->isInstantiationDependent()) ? static_cast <void> (0) : __assert_fail ("AddrSpaceExpr->isInstantiationDependent()" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3722, __PRETTY_FUNCTION__)); | |||
3723 | ||||
3724 | QualType canonPointeeType = getCanonicalType(PointeeType); | |||
3725 | ||||
3726 | void *insertPos = nullptr; | |||
3727 | llvm::FoldingSetNodeID ID; | |||
3728 | DependentAddressSpaceType::Profile(ID, *this, canonPointeeType, | |||
3729 | AddrSpaceExpr); | |||
3730 | ||||
3731 | DependentAddressSpaceType *canonTy = | |||
3732 | DependentAddressSpaceTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3733 | ||||
3734 | if (!canonTy) { | |||
3735 | canonTy = new (*this, TypeAlignment) | |||
3736 | DependentAddressSpaceType(*this, canonPointeeType, | |||
3737 | QualType(), AddrSpaceExpr, AttrLoc); | |||
3738 | DependentAddressSpaceTypes.InsertNode(canonTy, insertPos); | |||
3739 | Types.push_back(canonTy); | |||
3740 | } | |||
3741 | ||||
3742 | if (canonPointeeType == PointeeType && | |||
3743 | canonTy->getAddrSpaceExpr() == AddrSpaceExpr) | |||
3744 | return QualType(canonTy, 0); | |||
3745 | ||||
3746 | auto *sugaredType | |||
3747 | = new (*this, TypeAlignment) | |||
3748 | DependentAddressSpaceType(*this, PointeeType, QualType(canonTy, 0), | |||
3749 | AddrSpaceExpr, AttrLoc); | |||
3750 | Types.push_back(sugaredType); | |||
3751 | return QualType(sugaredType, 0); | |||
3752 | } | |||
3753 | ||||
3754 | /// Determine whether \p T is canonical as the result type of a function. | |||
3755 | static bool isCanonicalResultType(QualType T) { | |||
3756 | return T.isCanonical() && | |||
3757 | (T.getObjCLifetime() == Qualifiers::OCL_None || | |||
3758 | T.getObjCLifetime() == Qualifiers::OCL_ExplicitNone); | |||
3759 | } | |||
3760 | ||||
3761 | /// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. | |||
3762 | QualType | |||
3763 | ASTContext::getFunctionNoProtoType(QualType ResultTy, | |||
3764 | const FunctionType::ExtInfo &Info) const { | |||
3765 | // Unique functions, to guarantee there is only one function of a particular | |||
3766 | // structure. | |||
3767 | llvm::FoldingSetNodeID ID; | |||
3768 | FunctionNoProtoType::Profile(ID, ResultTy, Info); | |||
3769 | ||||
3770 | void *InsertPos = nullptr; | |||
3771 | if (FunctionNoProtoType *FT = | |||
3772 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3773 | return QualType(FT, 0); | |||
3774 | ||||
3775 | QualType Canonical; | |||
3776 | if (!isCanonicalResultType(ResultTy)) { | |||
3777 | Canonical = | |||
3778 | getFunctionNoProtoType(getCanonicalFunctionResultType(ResultTy), Info); | |||
3779 | ||||
3780 | // Get the new insert position for the node we care about. | |||
3781 | FunctionNoProtoType *NewIP = | |||
3782 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3783 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3783, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3784 | } | |||
3785 | ||||
3786 | auto *New = new (*this, TypeAlignment) | |||
3787 | FunctionNoProtoType(ResultTy, Canonical, Info); | |||
3788 | Types.push_back(New); | |||
3789 | FunctionNoProtoTypes.InsertNode(New, InsertPos); | |||
3790 | return QualType(New, 0); | |||
3791 | } | |||
3792 | ||||
3793 | CanQualType | |||
3794 | ASTContext::getCanonicalFunctionResultType(QualType ResultType) const { | |||
3795 | CanQualType CanResultType = getCanonicalType(ResultType); | |||
3796 | ||||
3797 | // Canonical result types do not have ARC lifetime qualifiers. | |||
3798 | if (CanResultType.getQualifiers().hasObjCLifetime()) { | |||
3799 | Qualifiers Qs = CanResultType.getQualifiers(); | |||
3800 | Qs.removeObjCLifetime(); | |||
3801 | return CanQualType::CreateUnsafe( | |||
3802 | getQualifiedType(CanResultType.getUnqualifiedType(), Qs)); | |||
3803 | } | |||
3804 | ||||
3805 | return CanResultType; | |||
3806 | } | |||
3807 | ||||
3808 | static bool isCanonicalExceptionSpecification( | |||
3809 | const FunctionProtoType::ExceptionSpecInfo &ESI, bool NoexceptInType) { | |||
3810 | if (ESI.Type == EST_None) | |||
3811 | return true; | |||
3812 | if (!NoexceptInType) | |||
3813 | return false; | |||
3814 | ||||
3815 | // C++17 onwards: exception specification is part of the type, as a simple | |||
3816 | // boolean "can this function type throw". | |||
3817 | if (ESI.Type == EST_BasicNoexcept) | |||
3818 | return true; | |||
3819 | ||||
3820 | // A noexcept(expr) specification is (possibly) canonical if expr is | |||
3821 | // value-dependent. | |||
3822 | if (ESI.Type == EST_DependentNoexcept) | |||
3823 | return true; | |||
3824 | ||||
3825 | // A dynamic exception specification is canonical if it only contains pack | |||
3826 | // expansions (so we can't tell whether it's non-throwing) and all its | |||
3827 | // contained types are canonical. | |||
3828 | if (ESI.Type == EST_Dynamic) { | |||
3829 | bool AnyPackExpansions = false; | |||
3830 | for (QualType ET : ESI.Exceptions) { | |||
3831 | if (!ET.isCanonical()) | |||
3832 | return false; | |||
3833 | if (ET->getAs<PackExpansionType>()) | |||
3834 | AnyPackExpansions = true; | |||
3835 | } | |||
3836 | return AnyPackExpansions; | |||
3837 | } | |||
3838 | ||||
3839 | return false; | |||
3840 | } | |||
3841 | ||||
3842 | QualType ASTContext::getFunctionTypeInternal( | |||
3843 | QualType ResultTy, ArrayRef<QualType> ArgArray, | |||
3844 | const FunctionProtoType::ExtProtoInfo &EPI, bool OnlyWantCanonical) const { | |||
3845 | size_t NumArgs = ArgArray.size(); | |||
3846 | ||||
3847 | // Unique functions, to guarantee there is only one function of a particular | |||
3848 | // structure. | |||
3849 | llvm::FoldingSetNodeID ID; | |||
3850 | FunctionProtoType::Profile(ID, ResultTy, ArgArray.begin(), NumArgs, EPI, | |||
3851 | *this, true); | |||
3852 | ||||
3853 | QualType Canonical; | |||
3854 | bool Unique = false; | |||
3855 | ||||
3856 | void *InsertPos = nullptr; | |||
3857 | if (FunctionProtoType *FPT = | |||
3858 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) { | |||
3859 | QualType Existing = QualType(FPT, 0); | |||
3860 | ||||
3861 | // If we find a pre-existing equivalent FunctionProtoType, we can just reuse | |||
3862 | // it so long as our exception specification doesn't contain a dependent | |||
3863 | // noexcept expression, or we're just looking for a canonical type. | |||
3864 | // Otherwise, we're going to need to create a type | |||
3865 | // sugar node to hold the concrete expression. | |||
3866 | if (OnlyWantCanonical || !isComputedNoexcept(EPI.ExceptionSpec.Type) || | |||
3867 | EPI.ExceptionSpec.NoexceptExpr == FPT->getNoexceptExpr()) | |||
3868 | return Existing; | |||
3869 | ||||
3870 | // We need a new type sugar node for this one, to hold the new noexcept | |||
3871 | // expression. We do no canonicalization here, but that's OK since we don't | |||
3872 | // expect to see the same noexcept expression much more than once. | |||
3873 | Canonical = getCanonicalType(Existing); | |||
3874 | Unique = true; | |||
3875 | } | |||
3876 | ||||
3877 | bool NoexceptInType = getLangOpts().CPlusPlus17; | |||
3878 | bool IsCanonicalExceptionSpec = | |||
3879 | isCanonicalExceptionSpecification(EPI.ExceptionSpec, NoexceptInType); | |||
3880 | ||||
3881 | // Determine whether the type being created is already canonical or not. | |||
3882 | bool isCanonical = !Unique && IsCanonicalExceptionSpec && | |||
3883 | isCanonicalResultType(ResultTy) && !EPI.HasTrailingReturn; | |||
3884 | for (unsigned i = 0; i != NumArgs && isCanonical; ++i) | |||
3885 | if (!ArgArray[i].isCanonicalAsParam()) | |||
3886 | isCanonical = false; | |||
3887 | ||||
3888 | if (OnlyWantCanonical) | |||
3889 | assert(isCanonical &&((isCanonical && "given non-canonical parameters constructing canonical type" ) ? static_cast<void> (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3890, __PRETTY_FUNCTION__)) | |||
3890 | "given non-canonical parameters constructing canonical type")((isCanonical && "given non-canonical parameters constructing canonical type" ) ? static_cast<void> (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3890, __PRETTY_FUNCTION__)); | |||
3891 | ||||
3892 | // If this type isn't canonical, get the canonical version of it if we don't | |||
3893 | // already have it. The exception spec is only partially part of the | |||
3894 | // canonical type, and only in C++17 onwards. | |||
3895 | if (!isCanonical && Canonical.isNull()) { | |||
3896 | SmallVector<QualType, 16> CanonicalArgs; | |||
3897 | CanonicalArgs.reserve(NumArgs); | |||
3898 | for (unsigned i = 0; i != NumArgs; ++i) | |||
3899 | CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); | |||
3900 | ||||
3901 | llvm::SmallVector<QualType, 8> ExceptionTypeStorage; | |||
3902 | FunctionProtoType::ExtProtoInfo CanonicalEPI = EPI; | |||
3903 | CanonicalEPI.HasTrailingReturn = false; | |||
3904 | ||||
3905 | if (IsCanonicalExceptionSpec) { | |||
3906 | // Exception spec is already OK. | |||
3907 | } else if (NoexceptInType) { | |||
3908 | switch (EPI.ExceptionSpec.Type) { | |||
3909 | case EST_Unparsed: case EST_Unevaluated: case EST_Uninstantiated: | |||
3910 | // We don't know yet. It shouldn't matter what we pick here; no-one | |||
3911 | // should ever look at this. | |||
3912 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
3913 | case EST_None: case EST_MSAny: case EST_NoexceptFalse: | |||
3914 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
3915 | break; | |||
3916 | ||||
3917 | // A dynamic exception specification is almost always "not noexcept", | |||
3918 | // with the exception that a pack expansion might expand to no types. | |||
3919 | case EST_Dynamic: { | |||
3920 | bool AnyPacks = false; | |||
3921 | for (QualType ET : EPI.ExceptionSpec.Exceptions) { | |||
3922 | if (ET->getAs<PackExpansionType>()) | |||
3923 | AnyPacks = true; | |||
3924 | ExceptionTypeStorage.push_back(getCanonicalType(ET)); | |||
3925 | } | |||
3926 | if (!AnyPacks) | |||
3927 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
3928 | else { | |||
3929 | CanonicalEPI.ExceptionSpec.Type = EST_Dynamic; | |||
3930 | CanonicalEPI.ExceptionSpec.Exceptions = ExceptionTypeStorage; | |||
3931 | } | |||
3932 | break; | |||
3933 | } | |||
3934 | ||||
3935 | case EST_DynamicNone: | |||
3936 | case EST_BasicNoexcept: | |||
3937 | case EST_NoexceptTrue: | |||
3938 | case EST_NoThrow: | |||
3939 | CanonicalEPI.ExceptionSpec.Type = EST_BasicNoexcept; | |||
3940 | break; | |||
3941 | ||||
3942 | case EST_DependentNoexcept: | |||
3943 | llvm_unreachable("dependent noexcept is already canonical")::llvm::llvm_unreachable_internal("dependent noexcept is already canonical" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3943); | |||
3944 | } | |||
3945 | } else { | |||
3946 | CanonicalEPI.ExceptionSpec = FunctionProtoType::ExceptionSpecInfo(); | |||
3947 | } | |||
3948 | ||||
3949 | // Adjust the canonical function result type. | |||
3950 | CanQualType CanResultTy = getCanonicalFunctionResultType(ResultTy); | |||
3951 | Canonical = | |||
3952 | getFunctionTypeInternal(CanResultTy, CanonicalArgs, CanonicalEPI, true); | |||
3953 | ||||
3954 | // Get the new insert position for the node we care about. | |||
3955 | FunctionProtoType *NewIP = | |||
3956 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3957 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3957, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3958 | } | |||
3959 | ||||
3960 | // Compute the needed size to hold this FunctionProtoType and the | |||
3961 | // various trailing objects. | |||
3962 | auto ESH = FunctionProtoType::getExceptionSpecSize( | |||
3963 | EPI.ExceptionSpec.Type, EPI.ExceptionSpec.Exceptions.size()); | |||
3964 | size_t Size = FunctionProtoType::totalSizeToAlloc< | |||
3965 | QualType, SourceLocation, FunctionType::FunctionTypeExtraBitfields, | |||
3966 | FunctionType::ExceptionType, Expr *, FunctionDecl *, | |||
3967 | FunctionProtoType::ExtParameterInfo, Qualifiers>( | |||
3968 | NumArgs, EPI.Variadic, | |||
3969 | FunctionProtoType::hasExtraBitfields(EPI.ExceptionSpec.Type), | |||
3970 | ESH.NumExceptionType, ESH.NumExprPtr, ESH.NumFunctionDeclPtr, | |||
3971 | EPI.ExtParameterInfos ? NumArgs : 0, | |||
3972 | EPI.TypeQuals.hasNonFastQualifiers() ? 1 : 0); | |||
3973 | ||||
3974 | auto *FTP = (FunctionProtoType *)Allocate(Size, TypeAlignment); | |||
3975 | FunctionProtoType::ExtProtoInfo newEPI = EPI; | |||
3976 | new (FTP) FunctionProtoType(ResultTy, ArgArray, Canonical, newEPI); | |||
3977 | Types.push_back(FTP); | |||
3978 | if (!Unique) | |||
3979 | FunctionProtoTypes.InsertNode(FTP, InsertPos); | |||
3980 | return QualType(FTP, 0); | |||
3981 | } | |||
3982 | ||||
3983 | QualType ASTContext::getPipeType(QualType T, bool ReadOnly) const { | |||
3984 | llvm::FoldingSetNodeID ID; | |||
3985 | PipeType::Profile(ID, T, ReadOnly); | |||
3986 | ||||
3987 | void *InsertPos = nullptr; | |||
3988 | if (PipeType *PT = PipeTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3989 | return QualType(PT, 0); | |||
3990 | ||||
3991 | // If the pipe element type isn't canonical, this won't be a canonical type | |||
3992 | // either, so fill in the canonical type field. | |||
3993 | QualType Canonical; | |||
3994 | if (!T.isCanonical()) { | |||
3995 | Canonical = getPipeType(getCanonicalType(T), ReadOnly); | |||
3996 | ||||
3997 | // Get the new insert position for the node we care about. | |||
3998 | PipeType *NewIP = PipeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3999 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 3999, __PRETTY_FUNCTION__)); | |||
4000 | (void)NewIP; | |||
4001 | } | |||
4002 | auto *New = new (*this, TypeAlignment) PipeType(T, Canonical, ReadOnly); | |||
4003 | Types.push_back(New); | |||
4004 | PipeTypes.InsertNode(New, InsertPos); | |||
4005 | return QualType(New, 0); | |||
4006 | } | |||
4007 | ||||
4008 | QualType ASTContext::adjustStringLiteralBaseType(QualType Ty) const { | |||
4009 | // OpenCL v1.1 s6.5.3: a string literal is in the constant address space. | |||
4010 | return LangOpts.OpenCL ? getAddrSpaceQualType(Ty, LangAS::opencl_constant) | |||
4011 | : Ty; | |||
4012 | } | |||
4013 | ||||
4014 | QualType ASTContext::getReadPipeType(QualType T) const { | |||
4015 | return getPipeType(T, true); | |||
4016 | } | |||
4017 | ||||
4018 | QualType ASTContext::getWritePipeType(QualType T) const { | |||
4019 | return getPipeType(T, false); | |||
4020 | } | |||
4021 | ||||
4022 | #ifndef NDEBUG | |||
4023 | static bool NeedsInjectedClassNameType(const RecordDecl *D) { | |||
4024 | if (!isa<CXXRecordDecl>(D)) return false; | |||
4025 | const auto *RD = cast<CXXRecordDecl>(D); | |||
4026 | if (isa<ClassTemplatePartialSpecializationDecl>(RD)) | |||
4027 | return true; | |||
4028 | if (RD->getDescribedClassTemplate() && | |||
4029 | !isa<ClassTemplateSpecializationDecl>(RD)) | |||
4030 | return true; | |||
4031 | return false; | |||
4032 | } | |||
4033 | #endif | |||
4034 | ||||
4035 | /// getInjectedClassNameType - Return the unique reference to the | |||
4036 | /// injected class name type for the specified templated declaration. | |||
4037 | QualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, | |||
4038 | QualType TST) const { | |||
4039 | assert(NeedsInjectedClassNameType(Decl))((NeedsInjectedClassNameType(Decl)) ? static_cast<void> (0) : __assert_fail ("NeedsInjectedClassNameType(Decl)", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4039, __PRETTY_FUNCTION__)); | |||
4040 | if (Decl->TypeForDecl) { | |||
4041 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))((isa<InjectedClassNameType>(Decl->TypeForDecl)) ? static_cast <void> (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4041, __PRETTY_FUNCTION__)); | |||
4042 | } else if (CXXRecordDecl *PrevDecl = Decl->getPreviousDecl()) { | |||
4043 | assert(PrevDecl->TypeForDecl && "previous declaration has no type")((PrevDecl->TypeForDecl && "previous declaration has no type" ) ? static_cast<void> (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous declaration has no type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4043, __PRETTY_FUNCTION__)); | |||
4044 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
4045 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))((isa<InjectedClassNameType>(Decl->TypeForDecl)) ? static_cast <void> (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4045, __PRETTY_FUNCTION__)); | |||
4046 | } else { | |||
4047 | Type *newType = | |||
4048 | new (*this, TypeAlignment) InjectedClassNameType(Decl, TST); | |||
4049 | Decl->TypeForDecl = newType; | |||
4050 | Types.push_back(newType); | |||
4051 | } | |||
4052 | return QualType(Decl->TypeForDecl, 0); | |||
4053 | } | |||
4054 | ||||
4055 | /// getTypeDeclType - Return the unique reference to the type for the | |||
4056 | /// specified type declaration. | |||
4057 | QualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) const { | |||
4058 | assert(Decl && "Passed null for Decl param")((Decl && "Passed null for Decl param") ? static_cast <void> (0) : __assert_fail ("Decl && \"Passed null for Decl param\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4058, __PRETTY_FUNCTION__)); | |||
4059 | assert(!Decl->TypeForDecl && "TypeForDecl present in slow case")((!Decl->TypeForDecl && "TypeForDecl present in slow case" ) ? static_cast<void> (0) : __assert_fail ("!Decl->TypeForDecl && \"TypeForDecl present in slow case\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4059, __PRETTY_FUNCTION__)); | |||
4060 | ||||
4061 | if (const auto *Typedef = dyn_cast<TypedefNameDecl>(Decl)) | |||
4062 | return getTypedefType(Typedef); | |||
4063 | ||||
4064 | assert(!isa<TemplateTypeParmDecl>(Decl) &&((!isa<TemplateTypeParmDecl>(Decl) && "Template type parameter types are always available." ) ? static_cast<void> (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4065, __PRETTY_FUNCTION__)) | |||
4065 | "Template type parameter types are always available.")((!isa<TemplateTypeParmDecl>(Decl) && "Template type parameter types are always available." ) ? static_cast<void> (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4065, __PRETTY_FUNCTION__)); | |||
4066 | ||||
4067 | if (const auto *Record = dyn_cast<RecordDecl>(Decl)) { | |||
4068 | assert(Record->isFirstDecl() && "struct/union has previous declaration")((Record->isFirstDecl() && "struct/union has previous declaration" ) ? static_cast<void> (0) : __assert_fail ("Record->isFirstDecl() && \"struct/union has previous declaration\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4068, __PRETTY_FUNCTION__)); | |||
4069 | assert(!NeedsInjectedClassNameType(Record))((!NeedsInjectedClassNameType(Record)) ? static_cast<void> (0) : __assert_fail ("!NeedsInjectedClassNameType(Record)", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4069, __PRETTY_FUNCTION__)); | |||
4070 | return getRecordType(Record); | |||
4071 | } else if (const auto *Enum = dyn_cast<EnumDecl>(Decl)) { | |||
4072 | assert(Enum->isFirstDecl() && "enum has previous declaration")((Enum->isFirstDecl() && "enum has previous declaration" ) ? static_cast<void> (0) : __assert_fail ("Enum->isFirstDecl() && \"enum has previous declaration\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4072, __PRETTY_FUNCTION__)); | |||
4073 | return getEnumType(Enum); | |||
4074 | } else if (const auto *Using = dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { | |||
4075 | Type *newType = new (*this, TypeAlignment) UnresolvedUsingType(Using); | |||
4076 | Decl->TypeForDecl = newType; | |||
4077 | Types.push_back(newType); | |||
4078 | } else | |||
4079 | llvm_unreachable("TypeDecl without a type?")::llvm::llvm_unreachable_internal("TypeDecl without a type?", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4079); | |||
4080 | ||||
4081 | return QualType(Decl->TypeForDecl, 0); | |||
4082 | } | |||
4083 | ||||
4084 | /// getTypedefType - Return the unique reference to the type for the | |||
4085 | /// specified typedef name decl. | |||
4086 | QualType | |||
4087 | ASTContext::getTypedefType(const TypedefNameDecl *Decl, | |||
4088 | QualType Canonical) const { | |||
4089 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4090 | ||||
4091 | if (Canonical.isNull()) | |||
4092 | Canonical = getCanonicalType(Decl->getUnderlyingType()); | |||
4093 | auto *newType = new (*this, TypeAlignment) | |||
4094 | TypedefType(Type::Typedef, Decl, Canonical); | |||
4095 | Decl->TypeForDecl = newType; | |||
4096 | Types.push_back(newType); | |||
4097 | return QualType(newType, 0); | |||
4098 | } | |||
4099 | ||||
4100 | QualType ASTContext::getRecordType(const RecordDecl *Decl) const { | |||
4101 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4102 | ||||
4103 | if (const RecordDecl *PrevDecl = Decl->getPreviousDecl()) | |||
4104 | if (PrevDecl->TypeForDecl) | |||
4105 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
4106 | ||||
4107 | auto *newType = new (*this, TypeAlignment) RecordType(Decl); | |||
4108 | Decl->TypeForDecl = newType; | |||
4109 | Types.push_back(newType); | |||
4110 | return QualType(newType, 0); | |||
4111 | } | |||
4112 | ||||
4113 | QualType ASTContext::getEnumType(const EnumDecl *Decl) const { | |||
4114 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4115 | ||||
4116 | if (const EnumDecl *PrevDecl = Decl->getPreviousDecl()) | |||
4117 | if (PrevDecl->TypeForDecl) | |||
4118 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
4119 | ||||
4120 | auto *newType = new (*this, TypeAlignment) EnumType(Decl); | |||
4121 | Decl->TypeForDecl = newType; | |||
4122 | Types.push_back(newType); | |||
4123 | return QualType(newType, 0); | |||
4124 | } | |||
4125 | ||||
4126 | QualType ASTContext::getAttributedType(attr::Kind attrKind, | |||
4127 | QualType modifiedType, | |||
4128 | QualType equivalentType) { | |||
4129 | llvm::FoldingSetNodeID id; | |||
4130 | AttributedType::Profile(id, attrKind, modifiedType, equivalentType); | |||
4131 | ||||
4132 | void *insertPos = nullptr; | |||
4133 | AttributedType *type = AttributedTypes.FindNodeOrInsertPos(id, insertPos); | |||
4134 | if (type) return QualType(type, 0); | |||
4135 | ||||
4136 | QualType canon = getCanonicalType(equivalentType); | |||
4137 | type = new (*this, TypeAlignment) | |||
4138 | AttributedType(canon, attrKind, modifiedType, equivalentType); | |||
4139 | ||||
4140 | Types.push_back(type); | |||
4141 | AttributedTypes.InsertNode(type, insertPos); | |||
4142 | ||||
4143 | return QualType(type, 0); | |||
4144 | } | |||
4145 | ||||
4146 | /// Retrieve a substitution-result type. | |||
4147 | QualType | |||
4148 | ASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, | |||
4149 | QualType Replacement) const { | |||
4150 | assert(Replacement.isCanonical()((Replacement.isCanonical() && "replacement types must always be canonical" ) ? static_cast<void> (0) : __assert_fail ("Replacement.isCanonical() && \"replacement types must always be canonical\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4151, __PRETTY_FUNCTION__)) | |||
4151 | && "replacement types must always be canonical")((Replacement.isCanonical() && "replacement types must always be canonical" ) ? static_cast<void> (0) : __assert_fail ("Replacement.isCanonical() && \"replacement types must always be canonical\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4151, __PRETTY_FUNCTION__)); | |||
4152 | ||||
4153 | llvm::FoldingSetNodeID ID; | |||
4154 | SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); | |||
4155 | void *InsertPos = nullptr; | |||
4156 | SubstTemplateTypeParmType *SubstParm | |||
4157 | = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4158 | ||||
4159 | if (!SubstParm) { | |||
4160 | SubstParm = new (*this, TypeAlignment) | |||
4161 | SubstTemplateTypeParmType(Parm, Replacement); | |||
4162 | Types.push_back(SubstParm); | |||
4163 | SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); | |||
4164 | } | |||
4165 | ||||
4166 | return QualType(SubstParm, 0); | |||
4167 | } | |||
4168 | ||||
4169 | /// Retrieve a | |||
4170 | QualType ASTContext::getSubstTemplateTypeParmPackType( | |||
4171 | const TemplateTypeParmType *Parm, | |||
4172 | const TemplateArgument &ArgPack) { | |||
4173 | #ifndef NDEBUG | |||
4174 | for (const auto &P : ArgPack.pack_elements()) { | |||
4175 | assert(P.getKind() == TemplateArgument::Type &&"Pack contains a non-type")((P.getKind() == TemplateArgument::Type &&"Pack contains a non-type" ) ? static_cast<void> (0) : __assert_fail ("P.getKind() == TemplateArgument::Type &&\"Pack contains a non-type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4175, __PRETTY_FUNCTION__)); | |||
4176 | assert(P.getAsType().isCanonical() && "Pack contains non-canonical type")((P.getAsType().isCanonical() && "Pack contains non-canonical type" ) ? static_cast<void> (0) : __assert_fail ("P.getAsType().isCanonical() && \"Pack contains non-canonical type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4176, __PRETTY_FUNCTION__)); | |||
4177 | } | |||
4178 | #endif | |||
4179 | ||||
4180 | llvm::FoldingSetNodeID ID; | |||
4181 | SubstTemplateTypeParmPackType::Profile(ID, Parm, ArgPack); | |||
4182 | void *InsertPos = nullptr; | |||
4183 | if (SubstTemplateTypeParmPackType *SubstParm | |||
4184 | = SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4185 | return QualType(SubstParm, 0); | |||
4186 | ||||
4187 | QualType Canon; | |||
4188 | if (!Parm->isCanonicalUnqualified()) { | |||
4189 | Canon = getCanonicalType(QualType(Parm, 0)); | |||
4190 | Canon = getSubstTemplateTypeParmPackType(cast<TemplateTypeParmType>(Canon), | |||
4191 | ArgPack); | |||
4192 | SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4193 | } | |||
4194 | ||||
4195 | auto *SubstParm | |||
4196 | = new (*this, TypeAlignment) SubstTemplateTypeParmPackType(Parm, Canon, | |||
4197 | ArgPack); | |||
4198 | Types.push_back(SubstParm); | |||
4199 | SubstTemplateTypeParmPackTypes.InsertNode(SubstParm, InsertPos); | |||
4200 | return QualType(SubstParm, 0); | |||
4201 | } | |||
4202 | ||||
4203 | /// Retrieve the template type parameter type for a template | |||
4204 | /// parameter or parameter pack with the given depth, index, and (optionally) | |||
4205 | /// name. | |||
4206 | QualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, | |||
4207 | bool ParameterPack, | |||
4208 | TemplateTypeParmDecl *TTPDecl) const { | |||
4209 | llvm::FoldingSetNodeID ID; | |||
4210 | TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, TTPDecl); | |||
4211 | void *InsertPos = nullptr; | |||
4212 | TemplateTypeParmType *TypeParm | |||
4213 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4214 | ||||
4215 | if (TypeParm) | |||
4216 | return QualType(TypeParm, 0); | |||
4217 | ||||
4218 | if (TTPDecl) { | |||
4219 | QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); | |||
4220 | TypeParm = new (*this, TypeAlignment) TemplateTypeParmType(TTPDecl, Canon); | |||
4221 | ||||
4222 | TemplateTypeParmType *TypeCheck | |||
4223 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4224 | assert(!TypeCheck && "Template type parameter canonical type broken")((!TypeCheck && "Template type parameter canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!TypeCheck && \"Template type parameter canonical type broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4224, __PRETTY_FUNCTION__)); | |||
4225 | (void)TypeCheck; | |||
4226 | } else | |||
4227 | TypeParm = new (*this, TypeAlignment) | |||
4228 | TemplateTypeParmType(Depth, Index, ParameterPack); | |||
4229 | ||||
4230 | Types.push_back(TypeParm); | |||
4231 | TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); | |||
4232 | ||||
4233 | return QualType(TypeParm, 0); | |||
4234 | } | |||
4235 | ||||
4236 | TypeSourceInfo * | |||
4237 | ASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, | |||
4238 | SourceLocation NameLoc, | |||
4239 | const TemplateArgumentListInfo &Args, | |||
4240 | QualType Underlying) const { | |||
4241 | assert(!Name.getAsDependentTemplateName() &&((!Name.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4242, __PRETTY_FUNCTION__)) | |||
4242 | "No dependent template names here!")((!Name.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4242, __PRETTY_FUNCTION__)); | |||
4243 | QualType TST = getTemplateSpecializationType(Name, Args, Underlying); | |||
4244 | ||||
4245 | TypeSourceInfo *DI = CreateTypeSourceInfo(TST); | |||
4246 | TemplateSpecializationTypeLoc TL = | |||
4247 | DI->getTypeLoc().castAs<TemplateSpecializationTypeLoc>(); | |||
4248 | TL.setTemplateKeywordLoc(SourceLocation()); | |||
4249 | TL.setTemplateNameLoc(NameLoc); | |||
4250 | TL.setLAngleLoc(Args.getLAngleLoc()); | |||
4251 | TL.setRAngleLoc(Args.getRAngleLoc()); | |||
4252 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) | |||
4253 | TL.setArgLocInfo(i, Args[i].getLocInfo()); | |||
4254 | return DI; | |||
4255 | } | |||
4256 | ||||
4257 | QualType | |||
4258 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
4259 | const TemplateArgumentListInfo &Args, | |||
4260 | QualType Underlying) const { | |||
4261 | assert(!Template.getAsDependentTemplateName() &&((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4262, __PRETTY_FUNCTION__)) | |||
4262 | "No dependent template names here!")((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4262, __PRETTY_FUNCTION__)); | |||
4263 | ||||
4264 | SmallVector<TemplateArgument, 4> ArgVec; | |||
4265 | ArgVec.reserve(Args.size()); | |||
4266 | for (const TemplateArgumentLoc &Arg : Args.arguments()) | |||
4267 | ArgVec.push_back(Arg.getArgument()); | |||
4268 | ||||
4269 | return getTemplateSpecializationType(Template, ArgVec, Underlying); | |||
4270 | } | |||
4271 | ||||
4272 | #ifndef NDEBUG | |||
4273 | static bool hasAnyPackExpansions(ArrayRef<TemplateArgument> Args) { | |||
4274 | for (const TemplateArgument &Arg : Args) | |||
4275 | if (Arg.isPackExpansion()) | |||
4276 | return true; | |||
4277 | ||||
4278 | return true; | |||
4279 | } | |||
4280 | #endif | |||
4281 | ||||
4282 | QualType | |||
4283 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
4284 | ArrayRef<TemplateArgument> Args, | |||
4285 | QualType Underlying) const { | |||
4286 | assert(!Template.getAsDependentTemplateName() &&((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4287, __PRETTY_FUNCTION__)) | |||
4287 | "No dependent template names here!")((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4287, __PRETTY_FUNCTION__)); | |||
4288 | // Look through qualified template names. | |||
4289 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
4290 | Template = TemplateName(QTN->getTemplateDecl()); | |||
4291 | ||||
4292 | bool IsTypeAlias = | |||
4293 | Template.getAsTemplateDecl() && | |||
4294 | isa<TypeAliasTemplateDecl>(Template.getAsTemplateDecl()); | |||
4295 | QualType CanonType; | |||
4296 | if (!Underlying.isNull()) | |||
4297 | CanonType = getCanonicalType(Underlying); | |||
4298 | else { | |||
4299 | // We can get here with an alias template when the specialization contains | |||
4300 | // a pack expansion that does not match up with a parameter pack. | |||
4301 | assert((!IsTypeAlias || hasAnyPackExpansions(Args)) &&(((!IsTypeAlias || hasAnyPackExpansions(Args)) && "Caller must compute aliased type" ) ? static_cast<void> (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4302, __PRETTY_FUNCTION__)) | |||
4302 | "Caller must compute aliased type")(((!IsTypeAlias || hasAnyPackExpansions(Args)) && "Caller must compute aliased type" ) ? static_cast<void> (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4302, __PRETTY_FUNCTION__)); | |||
4303 | IsTypeAlias = false; | |||
4304 | CanonType = getCanonicalTemplateSpecializationType(Template, Args); | |||
4305 | } | |||
4306 | ||||
4307 | // Allocate the (non-canonical) template specialization type, but don't | |||
4308 | // try to unique it: these types typically have location information that | |||
4309 | // we don't unique and don't want to lose. | |||
4310 | void *Mem = Allocate(sizeof(TemplateSpecializationType) + | |||
4311 | sizeof(TemplateArgument) * Args.size() + | |||
4312 | (IsTypeAlias? sizeof(QualType) : 0), | |||
4313 | TypeAlignment); | |||
4314 | auto *Spec | |||
4315 | = new (Mem) TemplateSpecializationType(Template, Args, CanonType, | |||
4316 | IsTypeAlias ? Underlying : QualType()); | |||
4317 | ||||
4318 | Types.push_back(Spec); | |||
4319 | return QualType(Spec, 0); | |||
4320 | } | |||
4321 | ||||
4322 | QualType ASTContext::getCanonicalTemplateSpecializationType( | |||
4323 | TemplateName Template, ArrayRef<TemplateArgument> Args) const { | |||
4324 | assert(!Template.getAsDependentTemplateName() &&((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4325, __PRETTY_FUNCTION__)) | |||
4325 | "No dependent template names here!")((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4325, __PRETTY_FUNCTION__)); | |||
4326 | ||||
4327 | // Look through qualified template names. | |||
4328 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
4329 | Template = TemplateName(QTN->getTemplateDecl()); | |||
4330 | ||||
4331 | // Build the canonical template specialization type. | |||
4332 | TemplateName CanonTemplate = getCanonicalTemplateName(Template); | |||
4333 | SmallVector<TemplateArgument, 4> CanonArgs; | |||
4334 | unsigned NumArgs = Args.size(); | |||
4335 | CanonArgs.reserve(NumArgs); | |||
4336 | for (const TemplateArgument &Arg : Args) | |||
4337 | CanonArgs.push_back(getCanonicalTemplateArgument(Arg)); | |||
4338 | ||||
4339 | // Determine whether this canonical template specialization type already | |||
4340 | // exists. | |||
4341 | llvm::FoldingSetNodeID ID; | |||
4342 | TemplateSpecializationType::Profile(ID, CanonTemplate, | |||
4343 | CanonArgs, *this); | |||
4344 | ||||
4345 | void *InsertPos = nullptr; | |||
4346 | TemplateSpecializationType *Spec | |||
4347 | = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4348 | ||||
4349 | if (!Spec) { | |||
4350 | // Allocate a new canonical template specialization type. | |||
4351 | void *Mem = Allocate((sizeof(TemplateSpecializationType) + | |||
4352 | sizeof(TemplateArgument) * NumArgs), | |||
4353 | TypeAlignment); | |||
4354 | Spec = new (Mem) TemplateSpecializationType(CanonTemplate, | |||
4355 | CanonArgs, | |||
4356 | QualType(), QualType()); | |||
4357 | Types.push_back(Spec); | |||
4358 | TemplateSpecializationTypes.InsertNode(Spec, InsertPos); | |||
4359 | } | |||
4360 | ||||
4361 | assert(Spec->isDependentType() &&((Spec->isDependentType() && "Non-dependent template-id type must have a canonical type" ) ? static_cast<void> (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4362, __PRETTY_FUNCTION__)) | |||
4362 | "Non-dependent template-id type must have a canonical type")((Spec->isDependentType() && "Non-dependent template-id type must have a canonical type" ) ? static_cast<void> (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4362, __PRETTY_FUNCTION__)); | |||
4363 | return QualType(Spec, 0); | |||
4364 | } | |||
4365 | ||||
4366 | QualType ASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword, | |||
4367 | NestedNameSpecifier *NNS, | |||
4368 | QualType NamedType, | |||
4369 | TagDecl *OwnedTagDecl) const { | |||
4370 | llvm::FoldingSetNodeID ID; | |||
4371 | ElaboratedType::Profile(ID, Keyword, NNS, NamedType, OwnedTagDecl); | |||
4372 | ||||
4373 | void *InsertPos = nullptr; | |||
4374 | ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4375 | if (T) | |||
4376 | return QualType(T, 0); | |||
4377 | ||||
4378 | QualType Canon = NamedType; | |||
4379 | if (!Canon.isCanonical()) { | |||
4380 | Canon = getCanonicalType(NamedType); | |||
4381 | ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4382 | assert(!CheckT && "Elaborated canonical type broken")((!CheckT && "Elaborated canonical type broken") ? static_cast <void> (0) : __assert_fail ("!CheckT && \"Elaborated canonical type broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4382, __PRETTY_FUNCTION__)); | |||
4383 | (void)CheckT; | |||
4384 | } | |||
4385 | ||||
4386 | void *Mem = Allocate(ElaboratedType::totalSizeToAlloc<TagDecl *>(!!OwnedTagDecl), | |||
4387 | TypeAlignment); | |||
4388 | T = new (Mem) ElaboratedType(Keyword, NNS, NamedType, Canon, OwnedTagDecl); | |||
4389 | ||||
4390 | Types.push_back(T); | |||
4391 | ElaboratedTypes.InsertNode(T, InsertPos); | |||
4392 | return QualType(T, 0); | |||
4393 | } | |||
4394 | ||||
4395 | QualType | |||
4396 | ASTContext::getParenType(QualType InnerType) const { | |||
4397 | llvm::FoldingSetNodeID ID; | |||
4398 | ParenType::Profile(ID, InnerType); | |||
4399 | ||||
4400 | void *InsertPos = nullptr; | |||
4401 | ParenType *T = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4402 | if (T) | |||
4403 | return QualType(T, 0); | |||
4404 | ||||
4405 | QualType Canon = InnerType; | |||
4406 | if (!Canon.isCanonical()) { | |||
4407 | Canon = getCanonicalType(InnerType); | |||
4408 | ParenType *CheckT = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4409 | assert(!CheckT && "Paren canonical type broken")((!CheckT && "Paren canonical type broken") ? static_cast <void> (0) : __assert_fail ("!CheckT && \"Paren canonical type broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4409, __PRETTY_FUNCTION__)); | |||
4410 | (void)CheckT; | |||
4411 | } | |||
4412 | ||||
4413 | T = new (*this, TypeAlignment) ParenType(InnerType, Canon); | |||
4414 | Types.push_back(T); | |||
4415 | ParenTypes.InsertNode(T, InsertPos); | |||
4416 | return QualType(T, 0); | |||
4417 | } | |||
4418 | ||||
4419 | QualType | |||
4420 | ASTContext::getMacroQualifiedType(QualType UnderlyingTy, | |||
4421 | const IdentifierInfo *MacroII) const { | |||
4422 | QualType Canon = UnderlyingTy; | |||
4423 | if (!Canon.isCanonical()) | |||
4424 | Canon = getCanonicalType(UnderlyingTy); | |||
4425 | ||||
4426 | auto *newType = new (*this, TypeAlignment) | |||
4427 | MacroQualifiedType(UnderlyingTy, Canon, MacroII); | |||
4428 | Types.push_back(newType); | |||
4429 | return QualType(newType, 0); | |||
4430 | } | |||
4431 | ||||
4432 | QualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, | |||
4433 | NestedNameSpecifier *NNS, | |||
4434 | const IdentifierInfo *Name, | |||
4435 | QualType Canon) const { | |||
4436 | if (Canon.isNull()) { | |||
4437 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
4438 | if (CanonNNS != NNS) | |||
4439 | Canon = getDependentNameType(Keyword, CanonNNS, Name); | |||
4440 | } | |||
4441 | ||||
4442 | llvm::FoldingSetNodeID ID; | |||
4443 | DependentNameType::Profile(ID, Keyword, NNS, Name); | |||
4444 | ||||
4445 | void *InsertPos = nullptr; | |||
4446 | DependentNameType *T | |||
4447 | = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4448 | if (T) | |||
4449 | return QualType(T, 0); | |||
4450 | ||||
4451 | T = new (*this, TypeAlignment) DependentNameType(Keyword, NNS, Name, Canon); | |||
4452 | Types.push_back(T); | |||
4453 | DependentNameTypes.InsertNode(T, InsertPos); | |||
4454 | return QualType(T, 0); | |||
4455 | } | |||
4456 | ||||
4457 | QualType | |||
4458 | ASTContext::getDependentTemplateSpecializationType( | |||
4459 | ElaboratedTypeKeyword Keyword, | |||
4460 | NestedNameSpecifier *NNS, | |||
4461 | const IdentifierInfo *Name, | |||
4462 | const TemplateArgumentListInfo &Args) const { | |||
4463 | // TODO: avoid this copy | |||
4464 | SmallVector<TemplateArgument, 16> ArgCopy; | |||
4465 | for (unsigned I = 0, E = Args.size(); I != E; ++I) | |||
4466 | ArgCopy.push_back(Args[I].getArgument()); | |||
4467 | return getDependentTemplateSpecializationType(Keyword, NNS, Name, ArgCopy); | |||
4468 | } | |||
4469 | ||||
4470 | QualType | |||
4471 | ASTContext::getDependentTemplateSpecializationType( | |||
4472 | ElaboratedTypeKeyword Keyword, | |||
4473 | NestedNameSpecifier *NNS, | |||
4474 | const IdentifierInfo *Name, | |||
4475 | ArrayRef<TemplateArgument> Args) const { | |||
4476 | assert((!NNS || NNS->isDependent()) &&(((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4477, __PRETTY_FUNCTION__)) | |||
4477 | "nested-name-specifier must be dependent")(((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4477, __PRETTY_FUNCTION__)); | |||
4478 | ||||
4479 | llvm::FoldingSetNodeID ID; | |||
4480 | DependentTemplateSpecializationType::Profile(ID, *this, Keyword, NNS, | |||
4481 | Name, Args); | |||
4482 | ||||
4483 | void *InsertPos = nullptr; | |||
4484 | DependentTemplateSpecializationType *T | |||
4485 | = DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4486 | if (T) | |||
4487 | return QualType(T, 0); | |||
4488 | ||||
4489 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
4490 | ||||
4491 | ElaboratedTypeKeyword CanonKeyword = Keyword; | |||
4492 | if (Keyword == ETK_None) CanonKeyword = ETK_Typename; | |||
4493 | ||||
4494 | bool AnyNonCanonArgs = false; | |||
4495 | unsigned NumArgs = Args.size(); | |||
4496 | SmallVector<TemplateArgument, 16> CanonArgs(NumArgs); | |||
4497 | for (unsigned I = 0; I != NumArgs; ++I) { | |||
4498 | CanonArgs[I] = getCanonicalTemplateArgument(Args[I]); | |||
4499 | if (!CanonArgs[I].structurallyEquals(Args[I])) | |||
4500 | AnyNonCanonArgs = true; | |||
4501 | } | |||
4502 | ||||
4503 | QualType Canon; | |||
4504 | if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) { | |||
4505 | Canon = getDependentTemplateSpecializationType(CanonKeyword, CanonNNS, | |||
4506 | Name, | |||
4507 | CanonArgs); | |||
4508 | ||||
4509 | // Find the insert position again. | |||
4510 | DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4511 | } | |||
4512 | ||||
4513 | void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) + | |||
4514 | sizeof(TemplateArgument) * NumArgs), | |||
4515 | TypeAlignment); | |||
4516 | T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS, | |||
4517 | Name, Args, Canon); | |||
4518 | Types.push_back(T); | |||
4519 | DependentTemplateSpecializationTypes.InsertNode(T, InsertPos); | |||
4520 | return QualType(T, 0); | |||
4521 | } | |||
4522 | ||||
4523 | TemplateArgument ASTContext::getInjectedTemplateArg(NamedDecl *Param) { | |||
4524 | TemplateArgument Arg; | |||
4525 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(Param)) { | |||
4526 | QualType ArgType = getTypeDeclType(TTP); | |||
4527 | if (TTP->isParameterPack()) | |||
4528 | ArgType = getPackExpansionType(ArgType, None); | |||
4529 | ||||
4530 | Arg = TemplateArgument(ArgType); | |||
4531 | } else if (auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(Param)) { | |||
4532 | Expr *E = new (*this) DeclRefExpr( | |||
4533 | *this, NTTP, /*enclosing*/ false, | |||
4534 | NTTP->getType().getNonLValueExprType(*this), | |||
4535 | Expr::getValueKindForType(NTTP->getType()), NTTP->getLocation()); | |||
4536 | ||||
4537 | if (NTTP->isParameterPack()) | |||
4538 | E = new (*this) PackExpansionExpr(DependentTy, E, NTTP->getLocation(), | |||
4539 | None); | |||
4540 | Arg = TemplateArgument(E); | |||
4541 | } else { | |||
4542 | auto *TTP = cast<TemplateTemplateParmDecl>(Param); | |||
4543 | if (TTP->isParameterPack()) | |||
4544 | Arg = TemplateArgument(TemplateName(TTP), Optional<unsigned>()); | |||
4545 | else | |||
4546 | Arg = TemplateArgument(TemplateName(TTP)); | |||
4547 | } | |||
4548 | ||||
4549 | if (Param->isTemplateParameterPack()) | |||
4550 | Arg = TemplateArgument::CreatePackCopy(*this, Arg); | |||
4551 | ||||
4552 | return Arg; | |||
4553 | } | |||
4554 | ||||
4555 | void | |||
4556 | ASTContext::getInjectedTemplateArgs(const TemplateParameterList *Params, | |||
4557 | SmallVectorImpl<TemplateArgument> &Args) { | |||
4558 | Args.reserve(Args.size() + Params->size()); | |||
4559 | ||||
4560 | for (NamedDecl *Param : *Params) | |||
4561 | Args.push_back(getInjectedTemplateArg(Param)); | |||
4562 | } | |||
4563 | ||||
4564 | QualType ASTContext::getPackExpansionType(QualType Pattern, | |||
4565 | Optional<unsigned> NumExpansions) { | |||
4566 | llvm::FoldingSetNodeID ID; | |||
4567 | PackExpansionType::Profile(ID, Pattern, NumExpansions); | |||
4568 | ||||
4569 | // A deduced type can deduce to a pack, eg | |||
4570 | // auto ...x = some_pack; | |||
4571 | // That declaration isn't (yet) valid, but is created as part of building an | |||
4572 | // init-capture pack: | |||
4573 | // [...x = some_pack] {} | |||
4574 | assert((Pattern->containsUnexpandedParameterPack() ||(((Pattern->containsUnexpandedParameterPack() || Pattern-> getContainedDeducedType()) && "Pack expansions must expand one or more parameter packs" ) ? static_cast<void> (0) : __assert_fail ("(Pattern->containsUnexpandedParameterPack() || Pattern->getContainedDeducedType()) && \"Pack expansions must expand one or more parameter packs\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4576, __PRETTY_FUNCTION__)) | |||
4575 | Pattern->getContainedDeducedType()) &&(((Pattern->containsUnexpandedParameterPack() || Pattern-> getContainedDeducedType()) && "Pack expansions must expand one or more parameter packs" ) ? static_cast<void> (0) : __assert_fail ("(Pattern->containsUnexpandedParameterPack() || Pattern->getContainedDeducedType()) && \"Pack expansions must expand one or more parameter packs\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4576, __PRETTY_FUNCTION__)) | |||
4576 | "Pack expansions must expand one or more parameter packs")(((Pattern->containsUnexpandedParameterPack() || Pattern-> getContainedDeducedType()) && "Pack expansions must expand one or more parameter packs" ) ? static_cast<void> (0) : __assert_fail ("(Pattern->containsUnexpandedParameterPack() || Pattern->getContainedDeducedType()) && \"Pack expansions must expand one or more parameter packs\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4576, __PRETTY_FUNCTION__)); | |||
4577 | void *InsertPos = nullptr; | |||
4578 | PackExpansionType *T | |||
4579 | = PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4580 | if (T) | |||
4581 | return QualType(T, 0); | |||
4582 | ||||
4583 | QualType Canon; | |||
4584 | if (!Pattern.isCanonical()) { | |||
4585 | Canon = getCanonicalType(Pattern); | |||
4586 | // The canonical type might not contain an unexpanded parameter pack, if it | |||
4587 | // contains an alias template specialization which ignores one of its | |||
4588 | // parameters. | |||
4589 | if (Canon->containsUnexpandedParameterPack()) { | |||
4590 | Canon = getPackExpansionType(Canon, NumExpansions); | |||
4591 | ||||
4592 | // Find the insert position again, in case we inserted an element into | |||
4593 | // PackExpansionTypes and invalidated our insert position. | |||
4594 | PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4595 | } | |||
4596 | } | |||
4597 | ||||
4598 | T = new (*this, TypeAlignment) | |||
4599 | PackExpansionType(Pattern, Canon, NumExpansions); | |||
4600 | Types.push_back(T); | |||
4601 | PackExpansionTypes.InsertNode(T, InsertPos); | |||
4602 | return QualType(T, 0); | |||
4603 | } | |||
4604 | ||||
4605 | /// CmpProtocolNames - Comparison predicate for sorting protocols | |||
4606 | /// alphabetically. | |||
4607 | static int CmpProtocolNames(ObjCProtocolDecl *const *LHS, | |||
4608 | ObjCProtocolDecl *const *RHS) { | |||
4609 | return DeclarationName::compare((*LHS)->getDeclName(), (*RHS)->getDeclName()); | |||
4610 | } | |||
4611 | ||||
4612 | static bool areSortedAndUniqued(ArrayRef<ObjCProtocolDecl *> Protocols) { | |||
4613 | if (Protocols.empty()) return true; | |||
4614 | ||||
4615 | if (Protocols[0]->getCanonicalDecl() != Protocols[0]) | |||
4616 | return false; | |||
4617 | ||||
4618 | for (unsigned i = 1; i != Protocols.size(); ++i) | |||
4619 | if (CmpProtocolNames(&Protocols[i - 1], &Protocols[i]) >= 0 || | |||
4620 | Protocols[i]->getCanonicalDecl() != Protocols[i]) | |||
4621 | return false; | |||
4622 | return true; | |||
4623 | } | |||
4624 | ||||
4625 | static void | |||
4626 | SortAndUniqueProtocols(SmallVectorImpl<ObjCProtocolDecl *> &Protocols) { | |||
4627 | // Sort protocols, keyed by name. | |||
4628 | llvm::array_pod_sort(Protocols.begin(), Protocols.end(), CmpProtocolNames); | |||
4629 | ||||
4630 | // Canonicalize. | |||
4631 | for (ObjCProtocolDecl *&P : Protocols) | |||
4632 | P = P->getCanonicalDecl(); | |||
4633 | ||||
4634 | // Remove duplicates. | |||
4635 | auto ProtocolsEnd = std::unique(Protocols.begin(), Protocols.end()); | |||
4636 | Protocols.erase(ProtocolsEnd, Protocols.end()); | |||
4637 | } | |||
4638 | ||||
4639 | QualType ASTContext::getObjCObjectType(QualType BaseType, | |||
4640 | ObjCProtocolDecl * const *Protocols, | |||
4641 | unsigned NumProtocols) const { | |||
4642 | return getObjCObjectType(BaseType, {}, | |||
4643 | llvm::makeArrayRef(Protocols, NumProtocols), | |||
4644 | /*isKindOf=*/false); | |||
4645 | } | |||
4646 | ||||
4647 | QualType ASTContext::getObjCObjectType( | |||
4648 | QualType baseType, | |||
4649 | ArrayRef<QualType> typeArgs, | |||
4650 | ArrayRef<ObjCProtocolDecl *> protocols, | |||
4651 | bool isKindOf) const { | |||
4652 | // If the base type is an interface and there aren't any protocols or | |||
4653 | // type arguments to add, then the interface type will do just fine. | |||
4654 | if (typeArgs.empty() && protocols.empty() && !isKindOf && | |||
4655 | isa<ObjCInterfaceType>(baseType)) | |||
4656 | return baseType; | |||
4657 | ||||
4658 | // Look in the folding set for an existing type. | |||
4659 | llvm::FoldingSetNodeID ID; | |||
4660 | ObjCObjectTypeImpl::Profile(ID, baseType, typeArgs, protocols, isKindOf); | |||
4661 | void *InsertPos = nullptr; | |||
4662 | if (ObjCObjectType *QT = ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4663 | return QualType(QT, 0); | |||
4664 | ||||
4665 | // Determine the type arguments to be used for canonicalization, | |||
4666 | // which may be explicitly specified here or written on the base | |||
4667 | // type. | |||
4668 | ArrayRef<QualType> effectiveTypeArgs = typeArgs; | |||
4669 | if (effectiveTypeArgs.empty()) { | |||
4670 | if (const auto *baseObject = baseType->getAs<ObjCObjectType>()) | |||
4671 | effectiveTypeArgs = baseObject->getTypeArgs(); | |||
4672 | } | |||
4673 | ||||
4674 | // Build the canonical type, which has the canonical base type and a | |||
4675 | // sorted-and-uniqued list of protocols and the type arguments | |||
4676 | // canonicalized. | |||
4677 | QualType canonical; | |||
4678 | bool typeArgsAreCanonical = std::all_of(effectiveTypeArgs.begin(), | |||
4679 | effectiveTypeArgs.end(), | |||
4680 | [&](QualType type) { | |||
4681 | return type.isCanonical(); | |||
4682 | }); | |||
4683 | bool protocolsSorted = areSortedAndUniqued(protocols); | |||
4684 | if (!typeArgsAreCanonical || !protocolsSorted || !baseType.isCanonical()) { | |||
4685 | // Determine the canonical type arguments. | |||
4686 | ArrayRef<QualType> canonTypeArgs; | |||
4687 | SmallVector<QualType, 4> canonTypeArgsVec; | |||
4688 | if (!typeArgsAreCanonical) { | |||
4689 | canonTypeArgsVec.reserve(effectiveTypeArgs.size()); | |||
4690 | for (auto typeArg : effectiveTypeArgs) | |||
4691 | canonTypeArgsVec.push_back(getCanonicalType(typeArg)); | |||
4692 | canonTypeArgs = canonTypeArgsVec; | |||
4693 | } else { | |||
4694 | canonTypeArgs = effectiveTypeArgs; | |||
4695 | } | |||
4696 | ||||
4697 | ArrayRef<ObjCProtocolDecl *> canonProtocols; | |||
4698 | SmallVector<ObjCProtocolDecl*, 8> canonProtocolsVec; | |||
4699 | if (!protocolsSorted) { | |||
4700 | canonProtocolsVec.append(protocols.begin(), protocols.end()); | |||
4701 | SortAndUniqueProtocols(canonProtocolsVec); | |||
4702 | canonProtocols = canonProtocolsVec; | |||
4703 | } else { | |||
4704 | canonProtocols = protocols; | |||
4705 | } | |||
4706 | ||||
4707 | canonical = getObjCObjectType(getCanonicalType(baseType), canonTypeArgs, | |||
4708 | canonProtocols, isKindOf); | |||
4709 | ||||
4710 | // Regenerate InsertPos. | |||
4711 | ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4712 | } | |||
4713 | ||||
4714 | unsigned size = sizeof(ObjCObjectTypeImpl); | |||
4715 | size += typeArgs.size() * sizeof(QualType); | |||
4716 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
4717 | void *mem = Allocate(size, TypeAlignment); | |||
4718 | auto *T = | |||
4719 | new (mem) ObjCObjectTypeImpl(canonical, baseType, typeArgs, protocols, | |||
4720 | isKindOf); | |||
4721 | ||||
4722 | Types.push_back(T); | |||
4723 | ObjCObjectTypes.InsertNode(T, InsertPos); | |||
4724 | return QualType(T, 0); | |||
4725 | } | |||
4726 | ||||
4727 | /// Apply Objective-C protocol qualifiers to the given type. | |||
4728 | /// If this is for the canonical type of a type parameter, we can apply | |||
4729 | /// protocol qualifiers on the ObjCObjectPointerType. | |||
4730 | QualType | |||
4731 | ASTContext::applyObjCProtocolQualifiers(QualType type, | |||
4732 | ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError, | |||
4733 | bool allowOnPointerType) const { | |||
4734 | hasError = false; | |||
4735 | ||||
4736 | if (const auto *objT = dyn_cast<ObjCTypeParamType>(type.getTypePtr())) { | |||
4737 | return getObjCTypeParamType(objT->getDecl(), protocols); | |||
4738 | } | |||
4739 | ||||
4740 | // Apply protocol qualifiers to ObjCObjectPointerType. | |||
4741 | if (allowOnPointerType) { | |||
4742 | if (const auto *objPtr = | |||
4743 | dyn_cast<ObjCObjectPointerType>(type.getTypePtr())) { | |||
4744 | const ObjCObjectType *objT = objPtr->getObjectType(); | |||
4745 | // Merge protocol lists and construct ObjCObjectType. | |||
4746 | SmallVector<ObjCProtocolDecl*, 8> protocolsVec; | |||
4747 | protocolsVec.append(objT->qual_begin(), | |||
4748 | objT->qual_end()); | |||
4749 | protocolsVec.append(protocols.begin(), protocols.end()); | |||
4750 | ArrayRef<ObjCProtocolDecl *> protocols = protocolsVec; | |||
4751 | type = getObjCObjectType( | |||
4752 | objT->getBaseType(), | |||
4753 | objT->getTypeArgsAsWritten(), | |||
4754 | protocols, | |||
4755 | objT->isKindOfTypeAsWritten()); | |||
4756 | return getObjCObjectPointerType(type); | |||
4757 | } | |||
4758 | } | |||
4759 | ||||
4760 | // Apply protocol qualifiers to ObjCObjectType. | |||
4761 | if (const auto *objT = dyn_cast<ObjCObjectType>(type.getTypePtr())){ | |||
4762 | // FIXME: Check for protocols to which the class type is already | |||
4763 | // known to conform. | |||
4764 | ||||
4765 | return getObjCObjectType(objT->getBaseType(), | |||
4766 | objT->getTypeArgsAsWritten(), | |||
4767 | protocols, | |||
4768 | objT->isKindOfTypeAsWritten()); | |||
4769 | } | |||
4770 | ||||
4771 | // If the canonical type is ObjCObjectType, ... | |||
4772 | if (type->isObjCObjectType()) { | |||
4773 | // Silently overwrite any existing protocol qualifiers. | |||
4774 | // TODO: determine whether that's the right thing to do. | |||
4775 | ||||
4776 | // FIXME: Check for protocols to which the class type is already | |||
4777 | // known to conform. | |||
4778 | return getObjCObjectType(type, {}, protocols, false); | |||
4779 | } | |||
4780 | ||||
4781 | // id<protocol-list> | |||
4782 | if (type->isObjCIdType()) { | |||
4783 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
4784 | type = getObjCObjectType(ObjCBuiltinIdTy, {}, protocols, | |||
4785 | objPtr->isKindOfType()); | |||
4786 | return getObjCObjectPointerType(type); | |||
4787 | } | |||
4788 | ||||
4789 | // Class<protocol-list> | |||
4790 | if (type->isObjCClassType()) { | |||
4791 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
4792 | type = getObjCObjectType(ObjCBuiltinClassTy, {}, protocols, | |||
4793 | objPtr->isKindOfType()); | |||
4794 | return getObjCObjectPointerType(type); | |||
4795 | } | |||
4796 | ||||
4797 | hasError = true; | |||
4798 | return type; | |||
4799 | } | |||
4800 | ||||
4801 | QualType | |||
4802 | ASTContext::getObjCTypeParamType(const ObjCTypeParamDecl *Decl, | |||
4803 | ArrayRef<ObjCProtocolDecl *> protocols) const { | |||
4804 | // Look in the folding set for an existing type. | |||
4805 | llvm::FoldingSetNodeID ID; | |||
4806 | ObjCTypeParamType::Profile(ID, Decl, protocols); | |||
4807 | void *InsertPos = nullptr; | |||
4808 | if (ObjCTypeParamType *TypeParam = | |||
4809 | ObjCTypeParamTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4810 | return QualType(TypeParam, 0); | |||
4811 | ||||
4812 | // We canonicalize to the underlying type. | |||
4813 | QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); | |||
4814 | if (!protocols.empty()) { | |||
4815 | // Apply the protocol qualifers. | |||
4816 | bool hasError; | |||
4817 | Canonical = getCanonicalType(applyObjCProtocolQualifiers( | |||
4818 | Canonical, protocols, hasError, true /*allowOnPointerType*/)); | |||
4819 | assert(!hasError && "Error when apply protocol qualifier to bound type")((!hasError && "Error when apply protocol qualifier to bound type" ) ? static_cast<void> (0) : __assert_fail ("!hasError && \"Error when apply protocol qualifier to bound type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4819, __PRETTY_FUNCTION__)); | |||
4820 | } | |||
4821 | ||||
4822 | unsigned size = sizeof(ObjCTypeParamType); | |||
4823 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
4824 | void *mem = Allocate(size, TypeAlignment); | |||
4825 | auto *newType = new (mem) ObjCTypeParamType(Decl, Canonical, protocols); | |||
4826 | ||||
4827 | Types.push_back(newType); | |||
4828 | ObjCTypeParamTypes.InsertNode(newType, InsertPos); | |||
4829 | return QualType(newType, 0); | |||
4830 | } | |||
4831 | ||||
4832 | /// ObjCObjectAdoptsQTypeProtocols - Checks that protocols in IC's | |||
4833 | /// protocol list adopt all protocols in QT's qualified-id protocol | |||
4834 | /// list. | |||
4835 | bool ASTContext::ObjCObjectAdoptsQTypeProtocols(QualType QT, | |||
4836 | ObjCInterfaceDecl *IC) { | |||
4837 | if (!QT->isObjCQualifiedIdType()) | |||
4838 | return false; | |||
4839 | ||||
4840 | if (const auto *OPT = QT->getAs<ObjCObjectPointerType>()) { | |||
4841 | // If both the right and left sides have qualifiers. | |||
4842 | for (auto *Proto : OPT->quals()) { | |||
4843 | if (!IC->ClassImplementsProtocol(Proto, false)) | |||
4844 | return false; | |||
4845 | } | |||
4846 | return true; | |||
4847 | } | |||
4848 | return false; | |||
4849 | } | |||
4850 | ||||
4851 | /// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in | |||
4852 | /// QT's qualified-id protocol list adopt all protocols in IDecl's list | |||
4853 | /// of protocols. | |||
4854 | bool ASTContext::QIdProtocolsAdoptObjCObjectProtocols(QualType QT, | |||
4855 | ObjCInterfaceDecl *IDecl) { | |||
4856 | if (!QT->isObjCQualifiedIdType()) | |||
4857 | return false; | |||
4858 | const auto *OPT = QT->getAs<ObjCObjectPointerType>(); | |||
4859 | if (!OPT) | |||
4860 | return false; | |||
4861 | if (!IDecl->hasDefinition()) | |||
4862 | return false; | |||
4863 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocols; | |||
4864 | CollectInheritedProtocols(IDecl, InheritedProtocols); | |||
4865 | if (InheritedProtocols.empty()) | |||
4866 | return false; | |||
4867 | // Check that if every protocol in list of id<plist> conforms to a protocol | |||
4868 | // of IDecl's, then bridge casting is ok. | |||
4869 | bool Conforms = false; | |||
4870 | for (auto *Proto : OPT->quals()) { | |||
4871 | Conforms = false; | |||
4872 | for (auto *PI : InheritedProtocols) { | |||
4873 | if (ProtocolCompatibleWithProtocol(Proto, PI)) { | |||
4874 | Conforms = true; | |||
4875 | break; | |||
4876 | } | |||
4877 | } | |||
4878 | if (!Conforms) | |||
4879 | break; | |||
4880 | } | |||
4881 | if (Conforms) | |||
4882 | return true; | |||
4883 | ||||
4884 | for (auto *PI : InheritedProtocols) { | |||
4885 | // If both the right and left sides have qualifiers. | |||
4886 | bool Adopts = false; | |||
4887 | for (auto *Proto : OPT->quals()) { | |||
4888 | // return 'true' if 'PI' is in the inheritance hierarchy of Proto | |||
4889 | if ((Adopts = ProtocolCompatibleWithProtocol(PI, Proto))) | |||
4890 | break; | |||
4891 | } | |||
4892 | if (!Adopts) | |||
4893 | return false; | |||
4894 | } | |||
4895 | return true; | |||
4896 | } | |||
4897 | ||||
4898 | /// getObjCObjectPointerType - Return a ObjCObjectPointerType type for | |||
4899 | /// the given object type. | |||
4900 | QualType ASTContext::getObjCObjectPointerType(QualType ObjectT) const { | |||
4901 | llvm::FoldingSetNodeID ID; | |||
4902 | ObjCObjectPointerType::Profile(ID, ObjectT); | |||
4903 | ||||
4904 | void *InsertPos = nullptr; | |||
4905 | if (ObjCObjectPointerType *QT = | |||
4906 | ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4907 | return QualType(QT, 0); | |||
4908 | ||||
4909 | // Find the canonical object type. | |||
4910 | QualType Canonical; | |||
4911 | if (!ObjectT.isCanonical()) { | |||
4912 | Canonical = getObjCObjectPointerType(getCanonicalType(ObjectT)); | |||
4913 | ||||
4914 | // Regenerate InsertPos. | |||
4915 | ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4916 | } | |||
4917 | ||||
4918 | // No match. | |||
4919 | void *Mem = Allocate(sizeof(ObjCObjectPointerType), TypeAlignment); | |||
4920 | auto *QType = | |||
4921 | new (Mem) ObjCObjectPointerType(Canonical, ObjectT); | |||
4922 | ||||
4923 | Types.push_back(QType); | |||
4924 | ObjCObjectPointerTypes.InsertNode(QType, InsertPos); | |||
4925 | return QualType(QType, 0); | |||
4926 | } | |||
4927 | ||||
4928 | /// getObjCInterfaceType - Return the unique reference to the type for the | |||
4929 | /// specified ObjC interface decl. The list of protocols is optional. | |||
4930 | QualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, | |||
4931 | ObjCInterfaceDecl *PrevDecl) const { | |||
4932 | if (Decl->TypeForDecl) | |||
4933 | return QualType(Decl->TypeForDecl, 0); | |||
4934 | ||||
4935 | if (PrevDecl) { | |||
4936 | assert(PrevDecl->TypeForDecl && "previous decl has no TypeForDecl")((PrevDecl->TypeForDecl && "previous decl has no TypeForDecl" ) ? static_cast<void> (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous decl has no TypeForDecl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 4936, __PRETTY_FUNCTION__)); | |||
4937 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
4938 | return QualType(PrevDecl->TypeForDecl, 0); | |||
4939 | } | |||
4940 | ||||
4941 | // Prefer the definition, if there is one. | |||
4942 | if (const ObjCInterfaceDecl *Def = Decl->getDefinition()) | |||
4943 | Decl = Def; | |||
4944 | ||||
4945 | void *Mem = Allocate(sizeof(ObjCInterfaceType), TypeAlignment); | |||
4946 | auto *T = new (Mem) ObjCInterfaceType(Decl); | |||
4947 | Decl->TypeForDecl = T; | |||
4948 | Types.push_back(T); | |||
4949 | return QualType(T, 0); | |||
4950 | } | |||
4951 | ||||
4952 | /// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique | |||
4953 | /// TypeOfExprType AST's (since expression's are never shared). For example, | |||
4954 | /// multiple declarations that refer to "typeof(x)" all contain different | |||
4955 | /// DeclRefExpr's. This doesn't effect the type checker, since it operates | |||
4956 | /// on canonical type's (which are always unique). | |||
4957 | QualType ASTContext::getTypeOfExprType(Expr *tofExpr) const { | |||
4958 | TypeOfExprType *toe; | |||
4959 | if (tofExpr->isTypeDependent()) { | |||
4960 | llvm::FoldingSetNodeID ID; | |||
4961 | DependentTypeOfExprType::Profile(ID, *this, tofExpr); | |||
4962 | ||||
4963 | void *InsertPos = nullptr; | |||
4964 | DependentTypeOfExprType *Canon | |||
4965 | = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4966 | if (Canon) { | |||
4967 | // We already have a "canonical" version of an identical, dependent | |||
4968 | // typeof(expr) type. Use that as our canonical type. | |||
4969 | toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, | |||
4970 | QualType((TypeOfExprType*)Canon, 0)); | |||
4971 | } else { | |||
4972 | // Build a new, canonical typeof(expr) type. | |||
4973 | Canon | |||
4974 | = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); | |||
4975 | DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); | |||
4976 | toe = Canon; | |||
4977 | } | |||
4978 | } else { | |||
4979 | QualType Canonical = getCanonicalType(tofExpr->getType()); | |||
4980 | toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); | |||
4981 | } | |||
4982 | Types.push_back(toe); | |||
4983 | return QualType(toe, 0); | |||
4984 | } | |||
4985 | ||||
4986 | /// getTypeOfType - Unlike many "get<Type>" functions, we don't unique | |||
4987 | /// TypeOfType nodes. The only motivation to unique these nodes would be | |||
4988 | /// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be | |||
4989 | /// an issue. This doesn't affect the type checker, since it operates | |||
4990 | /// on canonical types (which are always unique). | |||
4991 | QualType ASTContext::getTypeOfType(QualType tofType) const { | |||
4992 | QualType Canonical = getCanonicalType(tofType); | |||
4993 | auto *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); | |||
4994 | Types.push_back(tot); | |||
4995 | return QualType(tot, 0); | |||
4996 | } | |||
4997 | ||||
4998 | /// Unlike many "get<Type>" functions, we don't unique DecltypeType | |||
4999 | /// nodes. This would never be helpful, since each such type has its own | |||
5000 | /// expression, and would not give a significant memory saving, since there | |||
5001 | /// is an Expr tree under each such type. | |||
5002 | QualType ASTContext::getDecltypeType(Expr *e, QualType UnderlyingType) const { | |||
5003 | DecltypeType *dt; | |||
5004 | ||||
5005 | // C++11 [temp.type]p2: | |||
5006 | // If an expression e involves a template parameter, decltype(e) denotes a | |||
5007 | // unique dependent type. Two such decltype-specifiers refer to the same | |||
5008 | // type only if their expressions are equivalent (14.5.6.1). | |||
5009 | if (e->isInstantiationDependent()) { | |||
5010 | llvm::FoldingSetNodeID ID; | |||
5011 | DependentDecltypeType::Profile(ID, *this, e); | |||
5012 | ||||
5013 | void *InsertPos = nullptr; | |||
5014 | DependentDecltypeType *Canon | |||
5015 | = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5016 | if (!Canon) { | |||
5017 | // Build a new, canonical decltype(expr) type. | |||
5018 | Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); | |||
5019 | DependentDecltypeTypes.InsertNode(Canon, InsertPos); | |||
5020 | } | |||
5021 | dt = new (*this, TypeAlignment) | |||
5022 | DecltypeType(e, UnderlyingType, QualType((DecltypeType *)Canon, 0)); | |||
5023 | } else { | |||
5024 | dt = new (*this, TypeAlignment) | |||
5025 | DecltypeType(e, UnderlyingType, getCanonicalType(UnderlyingType)); | |||
5026 | } | |||
5027 | Types.push_back(dt); | |||
5028 | return QualType(dt, 0); | |||
5029 | } | |||
5030 | ||||
5031 | /// getUnaryTransformationType - We don't unique these, since the memory | |||
5032 | /// savings are minimal and these are rare. | |||
5033 | QualType ASTContext::getUnaryTransformType(QualType BaseType, | |||
5034 | QualType UnderlyingType, | |||
5035 | UnaryTransformType::UTTKind Kind) | |||
5036 | const { | |||
5037 | UnaryTransformType *ut = nullptr; | |||
5038 | ||||
5039 | if (BaseType->isDependentType()) { | |||
5040 | // Look in the folding set for an existing type. | |||
5041 | llvm::FoldingSetNodeID ID; | |||
5042 | DependentUnaryTransformType::Profile(ID, getCanonicalType(BaseType), Kind); | |||
5043 | ||||
5044 | void *InsertPos = nullptr; | |||
5045 | DependentUnaryTransformType *Canon | |||
5046 | = DependentUnaryTransformTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5047 | ||||
5048 | if (!Canon) { | |||
5049 | // Build a new, canonical __underlying_type(type) type. | |||
5050 | Canon = new (*this, TypeAlignment) | |||
5051 | DependentUnaryTransformType(*this, getCanonicalType(BaseType), | |||
5052 | Kind); | |||
5053 | DependentUnaryTransformTypes.InsertNode(Canon, InsertPos); | |||
5054 | } | |||
5055 | ut = new (*this, TypeAlignment) UnaryTransformType (BaseType, | |||
5056 | QualType(), Kind, | |||
5057 | QualType(Canon, 0)); | |||
5058 | } else { | |||
5059 | QualType CanonType = getCanonicalType(UnderlyingType); | |||
5060 | ut = new (*this, TypeAlignment) UnaryTransformType (BaseType, | |||
5061 | UnderlyingType, Kind, | |||
5062 | CanonType); | |||
5063 | } | |||
5064 | Types.push_back(ut); | |||
5065 | return QualType(ut, 0); | |||
5066 | } | |||
5067 | ||||
5068 | /// getAutoType - Return the uniqued reference to the 'auto' type which has been | |||
5069 | /// deduced to the given type, or to the canonical undeduced 'auto' type, or the | |||
5070 | /// canonical deduced-but-dependent 'auto' type. | |||
5071 | QualType | |||
5072 | ASTContext::getAutoType(QualType DeducedType, AutoTypeKeyword Keyword, | |||
5073 | bool IsDependent, bool IsPack, | |||
5074 | ConceptDecl *TypeConstraintConcept, | |||
5075 | ArrayRef<TemplateArgument> TypeConstraintArgs) const { | |||
5076 | assert((!IsPack || IsDependent) && "only use IsPack for a dependent pack")(((!IsPack || IsDependent) && "only use IsPack for a dependent pack" ) ? static_cast<void> (0) : __assert_fail ("(!IsPack || IsDependent) && \"only use IsPack for a dependent pack\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5076, __PRETTY_FUNCTION__)); | |||
5077 | if (DeducedType.isNull() && Keyword == AutoTypeKeyword::Auto && | |||
5078 | !TypeConstraintConcept && !IsDependent) | |||
5079 | return getAutoDeductType(); | |||
5080 | ||||
5081 | // Look in the folding set for an existing type. | |||
5082 | void *InsertPos = nullptr; | |||
5083 | llvm::FoldingSetNodeID ID; | |||
5084 | AutoType::Profile(ID, *this, DeducedType, Keyword, IsDependent, | |||
5085 | TypeConstraintConcept, TypeConstraintArgs); | |||
5086 | if (AutoType *AT = AutoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5087 | return QualType(AT, 0); | |||
5088 | ||||
5089 | void *Mem = Allocate(sizeof(AutoType) + | |||
5090 | sizeof(TemplateArgument) * TypeConstraintArgs.size(), | |||
5091 | TypeAlignment); | |||
5092 | auto *AT = new (Mem) AutoType(DeducedType, Keyword, IsDependent, IsPack, | |||
5093 | TypeConstraintConcept, TypeConstraintArgs); | |||
5094 | Types.push_back(AT); | |||
5095 | if (InsertPos) | |||
5096 | AutoTypes.InsertNode(AT, InsertPos); | |||
5097 | return QualType(AT, 0); | |||
5098 | } | |||
5099 | ||||
5100 | /// Return the uniqued reference to the deduced template specialization type | |||
5101 | /// which has been deduced to the given type, or to the canonical undeduced | |||
5102 | /// such type, or the canonical deduced-but-dependent such type. | |||
5103 | QualType ASTContext::getDeducedTemplateSpecializationType( | |||
5104 | TemplateName Template, QualType DeducedType, bool IsDependent) const { | |||
5105 | // Look in the folding set for an existing type. | |||
5106 | void *InsertPos = nullptr; | |||
5107 | llvm::FoldingSetNodeID ID; | |||
5108 | DeducedTemplateSpecializationType::Profile(ID, Template, DeducedType, | |||
5109 | IsDependent); | |||
5110 | if (DeducedTemplateSpecializationType *DTST = | |||
5111 | DeducedTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5112 | return QualType(DTST, 0); | |||
5113 | ||||
5114 | auto *DTST = new (*this, TypeAlignment) | |||
5115 | DeducedTemplateSpecializationType(Template, DeducedType, IsDependent); | |||
5116 | Types.push_back(DTST); | |||
5117 | if (InsertPos) | |||
5118 | DeducedTemplateSpecializationTypes.InsertNode(DTST, InsertPos); | |||
5119 | return QualType(DTST, 0); | |||
5120 | } | |||
5121 | ||||
5122 | /// getAtomicType - Return the uniqued reference to the atomic type for | |||
5123 | /// the given value type. | |||
5124 | QualType ASTContext::getAtomicType(QualType T) const { | |||
5125 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
5126 | // structure. | |||
5127 | llvm::FoldingSetNodeID ID; | |||
5128 | AtomicType::Profile(ID, T); | |||
5129 | ||||
5130 | void *InsertPos = nullptr; | |||
5131 | if (AtomicType *AT = AtomicTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5132 | return QualType(AT, 0); | |||
5133 | ||||
5134 | // If the atomic value type isn't canonical, this won't be a canonical type | |||
5135 | // either, so fill in the canonical type field. | |||
5136 | QualType Canonical; | |||
5137 | if (!T.isCanonical()) { | |||
5138 | Canonical = getAtomicType(getCanonicalType(T)); | |||
5139 | ||||
5140 | // Get the new insert position for the node we care about. | |||
5141 | AtomicType *NewIP = AtomicTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5142 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5142, __PRETTY_FUNCTION__)); (void)NewIP; | |||
5143 | } | |||
5144 | auto *New = new (*this, TypeAlignment) AtomicType(T, Canonical); | |||
5145 | Types.push_back(New); | |||
5146 | AtomicTypes.InsertNode(New, InsertPos); | |||
5147 | return QualType(New, 0); | |||
5148 | } | |||
5149 | ||||
5150 | /// getAutoDeductType - Get type pattern for deducing against 'auto'. | |||
5151 | QualType ASTContext::getAutoDeductType() const { | |||
5152 | if (AutoDeductTy.isNull()) | |||
5153 | AutoDeductTy = QualType( | |||
5154 | new (*this, TypeAlignment) AutoType(QualType(), AutoTypeKeyword::Auto, | |||
5155 | /*dependent*/false, /*pack*/false, | |||
5156 | /*concept*/nullptr, /*args*/{}), | |||
5157 | 0); | |||
5158 | return AutoDeductTy; | |||
5159 | } | |||
5160 | ||||
5161 | /// getAutoRRefDeductType - Get type pattern for deducing against 'auto &&'. | |||
5162 | QualType ASTContext::getAutoRRefDeductType() const { | |||
5163 | if (AutoRRefDeductTy.isNull()) | |||
5164 | AutoRRefDeductTy = getRValueReferenceType(getAutoDeductType()); | |||
5165 | assert(!AutoRRefDeductTy.isNull() && "can't build 'auto &&' pattern")((!AutoRRefDeductTy.isNull() && "can't build 'auto &&' pattern" ) ? static_cast<void> (0) : __assert_fail ("!AutoRRefDeductTy.isNull() && \"can't build 'auto &&' pattern\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5165, __PRETTY_FUNCTION__)); | |||
5166 | return AutoRRefDeductTy; | |||
5167 | } | |||
5168 | ||||
5169 | /// getTagDeclType - Return the unique reference to the type for the | |||
5170 | /// specified TagDecl (struct/union/class/enum) decl. | |||
5171 | QualType ASTContext::getTagDeclType(const TagDecl *Decl) const { | |||
5172 | assert(Decl)((Decl) ? static_cast<void> (0) : __assert_fail ("Decl" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5172, __PRETTY_FUNCTION__)); | |||
5173 | // FIXME: What is the design on getTagDeclType when it requires casting | |||
5174 | // away const? mutable? | |||
5175 | return getTypeDeclType(const_cast<TagDecl*>(Decl)); | |||
5176 | } | |||
5177 | ||||
5178 | /// getSizeType - Return the unique type for "size_t" (C99 7.17), the result | |||
5179 | /// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and | |||
5180 | /// needs to agree with the definition in <stddef.h>. | |||
5181 | CanQualType ASTContext::getSizeType() const { | |||
5182 | return getFromTargetType(Target->getSizeType()); | |||
5183 | } | |||
5184 | ||||
5185 | /// Return the unique signed counterpart of the integer type | |||
5186 | /// corresponding to size_t. | |||
5187 | CanQualType ASTContext::getSignedSizeType() const { | |||
5188 | return getFromTargetType(Target->getSignedSizeType()); | |||
5189 | } | |||
5190 | ||||
5191 | /// getIntMaxType - Return the unique type for "intmax_t" (C99 7.18.1.5). | |||
5192 | CanQualType ASTContext::getIntMaxType() const { | |||
5193 | return getFromTargetType(Target->getIntMaxType()); | |||
5194 | } | |||
5195 | ||||
5196 | /// getUIntMaxType - Return the unique type for "uintmax_t" (C99 7.18.1.5). | |||
5197 | CanQualType ASTContext::getUIntMaxType() const { | |||
5198 | return getFromTargetType(Target->getUIntMaxType()); | |||
5199 | } | |||
5200 | ||||
5201 | /// getSignedWCharType - Return the type of "signed wchar_t". | |||
5202 | /// Used when in C++, as a GCC extension. | |||
5203 | QualType ASTContext::getSignedWCharType() const { | |||
5204 | // FIXME: derive from "Target" ? | |||
5205 | return WCharTy; | |||
5206 | } | |||
5207 | ||||
5208 | /// getUnsignedWCharType - Return the type of "unsigned wchar_t". | |||
5209 | /// Used when in C++, as a GCC extension. | |||
5210 | QualType ASTContext::getUnsignedWCharType() const { | |||
5211 | // FIXME: derive from "Target" ? | |||
5212 | return UnsignedIntTy; | |||
5213 | } | |||
5214 | ||||
5215 | QualType ASTContext::getIntPtrType() const { | |||
5216 | return getFromTargetType(Target->getIntPtrType()); | |||
5217 | } | |||
5218 | ||||
5219 | QualType ASTContext::getUIntPtrType() const { | |||
5220 | return getCorrespondingUnsignedType(getIntPtrType()); | |||
5221 | } | |||
5222 | ||||
5223 | /// getPointerDiffType - Return the unique type for "ptrdiff_t" (C99 7.17) | |||
5224 | /// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). | |||
5225 | QualType ASTContext::getPointerDiffType() const { | |||
5226 | return getFromTargetType(Target->getPtrDiffType(0)); | |||
5227 | } | |||
5228 | ||||
5229 | /// Return the unique unsigned counterpart of "ptrdiff_t" | |||
5230 | /// integer type. The standard (C11 7.21.6.1p7) refers to this type | |||
5231 | /// in the definition of %tu format specifier. | |||
5232 | QualType ASTContext::getUnsignedPointerDiffType() const { | |||
5233 | return getFromTargetType(Target->getUnsignedPtrDiffType(0)); | |||
5234 | } | |||
5235 | ||||
5236 | /// Return the unique type for "pid_t" defined in | |||
5237 | /// <sys/types.h>. We need this to compute the correct type for vfork(). | |||
5238 | QualType ASTContext::getProcessIDType() const { | |||
5239 | return getFromTargetType(Target->getProcessIDType()); | |||
5240 | } | |||
5241 | ||||
5242 | //===----------------------------------------------------------------------===// | |||
5243 | // Type Operators | |||
5244 | //===----------------------------------------------------------------------===// | |||
5245 | ||||
5246 | CanQualType ASTContext::getCanonicalParamType(QualType T) const { | |||
5247 | // Push qualifiers into arrays, and then discard any remaining | |||
5248 | // qualifiers. | |||
5249 | T = getCanonicalType(T); | |||
5250 | T = getVariableArrayDecayedType(T); | |||
5251 | const Type *Ty = T.getTypePtr(); | |||
5252 | QualType Result; | |||
5253 | if (isa<ArrayType>(Ty)) { | |||
5254 | Result = getArrayDecayedType(QualType(Ty,0)); | |||
5255 | } else if (isa<FunctionType>(Ty)) { | |||
5256 | Result = getPointerType(QualType(Ty, 0)); | |||
5257 | } else { | |||
5258 | Result = QualType(Ty, 0); | |||
5259 | } | |||
5260 | ||||
5261 | return CanQualType::CreateUnsafe(Result); | |||
5262 | } | |||
5263 | ||||
5264 | QualType ASTContext::getUnqualifiedArrayType(QualType type, | |||
5265 | Qualifiers &quals) { | |||
5266 | SplitQualType splitType = type.getSplitUnqualifiedType(); | |||
5267 | ||||
5268 | // FIXME: getSplitUnqualifiedType() actually walks all the way to | |||
5269 | // the unqualified desugared type and then drops it on the floor. | |||
5270 | // We then have to strip that sugar back off with | |||
5271 | // getUnqualifiedDesugaredType(), which is silly. | |||
5272 | const auto *AT = | |||
5273 | dyn_cast<ArrayType>(splitType.Ty->getUnqualifiedDesugaredType()); | |||
5274 | ||||
5275 | // If we don't have an array, just use the results in splitType. | |||
5276 | if (!AT) { | |||
5277 | quals = splitType.Quals; | |||
5278 | return QualType(splitType.Ty, 0); | |||
5279 | } | |||
5280 | ||||
5281 | // Otherwise, recurse on the array's element type. | |||
5282 | QualType elementType = AT->getElementType(); | |||
5283 | QualType unqualElementType = getUnqualifiedArrayType(elementType, quals); | |||
5284 | ||||
5285 | // If that didn't change the element type, AT has no qualifiers, so we | |||
5286 | // can just use the results in splitType. | |||
5287 | if (elementType == unqualElementType) { | |||
5288 | assert(quals.empty())((quals.empty()) ? static_cast<void> (0) : __assert_fail ("quals.empty()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5288, __PRETTY_FUNCTION__)); // from the recursive call | |||
5289 | quals = splitType.Quals; | |||
5290 | return QualType(splitType.Ty, 0); | |||
5291 | } | |||
5292 | ||||
5293 | // Otherwise, add in the qualifiers from the outermost type, then | |||
5294 | // build the type back up. | |||
5295 | quals.addConsistentQualifiers(splitType.Quals); | |||
5296 | ||||
5297 | if (const auto *CAT = dyn_cast<ConstantArrayType>(AT)) { | |||
5298 | return getConstantArrayType(unqualElementType, CAT->getSize(), | |||
5299 | CAT->getSizeExpr(), CAT->getSizeModifier(), 0); | |||
5300 | } | |||
5301 | ||||
5302 | if (const auto *IAT = dyn_cast<IncompleteArrayType>(AT)) { | |||
5303 | return getIncompleteArrayType(unqualElementType, IAT->getSizeModifier(), 0); | |||
5304 | } | |||
5305 | ||||
5306 | if (const auto *VAT = dyn_cast<VariableArrayType>(AT)) { | |||
5307 | return getVariableArrayType(unqualElementType, | |||
5308 | VAT->getSizeExpr(), | |||
5309 | VAT->getSizeModifier(), | |||
5310 | VAT->getIndexTypeCVRQualifiers(), | |||
5311 | VAT->getBracketsRange()); | |||
5312 | } | |||
5313 | ||||
5314 | const auto *DSAT = cast<DependentSizedArrayType>(AT); | |||
5315 | return getDependentSizedArrayType(unqualElementType, DSAT->getSizeExpr(), | |||
5316 | DSAT->getSizeModifier(), 0, | |||
5317 | SourceRange()); | |||
5318 | } | |||
5319 | ||||
5320 | /// Attempt to unwrap two types that may both be array types with the same bound | |||
5321 | /// (or both be array types of unknown bound) for the purpose of comparing the | |||
5322 | /// cv-decomposition of two types per C++ [conv.qual]. | |||
5323 | bool ASTContext::UnwrapSimilarArrayTypes(QualType &T1, QualType &T2) { | |||
5324 | bool UnwrappedAny = false; | |||
5325 | while (true) { | |||
5326 | auto *AT1 = getAsArrayType(T1); | |||
5327 | if (!AT1) return UnwrappedAny; | |||
5328 | ||||
5329 | auto *AT2 = getAsArrayType(T2); | |||
5330 | if (!AT2) return UnwrappedAny; | |||
5331 | ||||
5332 | // If we don't have two array types with the same constant bound nor two | |||
5333 | // incomplete array types, we've unwrapped everything we can. | |||
5334 | if (auto *CAT1 = dyn_cast<ConstantArrayType>(AT1)) { | |||
5335 | auto *CAT2 = dyn_cast<ConstantArrayType>(AT2); | |||
5336 | if (!CAT2 || CAT1->getSize() != CAT2->getSize()) | |||
5337 | return UnwrappedAny; | |||
5338 | } else if (!isa<IncompleteArrayType>(AT1) || | |||
5339 | !isa<IncompleteArrayType>(AT2)) { | |||
5340 | return UnwrappedAny; | |||
5341 | } | |||
5342 | ||||
5343 | T1 = AT1->getElementType(); | |||
5344 | T2 = AT2->getElementType(); | |||
5345 | UnwrappedAny = true; | |||
5346 | } | |||
5347 | } | |||
5348 | ||||
5349 | /// Attempt to unwrap two types that may be similar (C++ [conv.qual]). | |||
5350 | /// | |||
5351 | /// If T1 and T2 are both pointer types of the same kind, or both array types | |||
5352 | /// with the same bound, unwraps layers from T1 and T2 until a pointer type is | |||
5353 | /// unwrapped. Top-level qualifiers on T1 and T2 are ignored. | |||
5354 | /// | |||
5355 | /// This function will typically be called in a loop that successively | |||
5356 | /// "unwraps" pointer and pointer-to-member types to compare them at each | |||
5357 | /// level. | |||
5358 | /// | |||
5359 | /// \return \c true if a pointer type was unwrapped, \c false if we reached a | |||
5360 | /// pair of types that can't be unwrapped further. | |||
5361 | bool ASTContext::UnwrapSimilarTypes(QualType &T1, QualType &T2) { | |||
5362 | UnwrapSimilarArrayTypes(T1, T2); | |||
5363 | ||||
5364 | const auto *T1PtrType = T1->getAs<PointerType>(); | |||
5365 | const auto *T2PtrType = T2->getAs<PointerType>(); | |||
5366 | if (T1PtrType && T2PtrType) { | |||
5367 | T1 = T1PtrType->getPointeeType(); | |||
5368 | T2 = T2PtrType->getPointeeType(); | |||
5369 | return true; | |||
5370 | } | |||
5371 | ||||
5372 | const auto *T1MPType = T1->getAs<MemberPointerType>(); | |||
5373 | const auto *T2MPType = T2->getAs<MemberPointerType>(); | |||
5374 | if (T1MPType && T2MPType && | |||
5375 | hasSameUnqualifiedType(QualType(T1MPType->getClass(), 0), | |||
5376 | QualType(T2MPType->getClass(), 0))) { | |||
5377 | T1 = T1MPType->getPointeeType(); | |||
5378 | T2 = T2MPType->getPointeeType(); | |||
5379 | return true; | |||
5380 | } | |||
5381 | ||||
5382 | if (getLangOpts().ObjC) { | |||
5383 | const auto *T1OPType = T1->getAs<ObjCObjectPointerType>(); | |||
5384 | const auto *T2OPType = T2->getAs<ObjCObjectPointerType>(); | |||
5385 | if (T1OPType && T2OPType) { | |||
5386 | T1 = T1OPType->getPointeeType(); | |||
5387 | T2 = T2OPType->getPointeeType(); | |||
5388 | return true; | |||
5389 | } | |||
5390 | } | |||
5391 | ||||
5392 | // FIXME: Block pointers, too? | |||
5393 | ||||
5394 | return false; | |||
5395 | } | |||
5396 | ||||
5397 | bool ASTContext::hasSimilarType(QualType T1, QualType T2) { | |||
5398 | while (true) { | |||
5399 | Qualifiers Quals; | |||
5400 | T1 = getUnqualifiedArrayType(T1, Quals); | |||
5401 | T2 = getUnqualifiedArrayType(T2, Quals); | |||
5402 | if (hasSameType(T1, T2)) | |||
5403 | return true; | |||
5404 | if (!UnwrapSimilarTypes(T1, T2)) | |||
5405 | return false; | |||
5406 | } | |||
5407 | } | |||
5408 | ||||
5409 | bool ASTContext::hasCvrSimilarType(QualType T1, QualType T2) { | |||
5410 | while (true) { | |||
5411 | Qualifiers Quals1, Quals2; | |||
5412 | T1 = getUnqualifiedArrayType(T1, Quals1); | |||
5413 | T2 = getUnqualifiedArrayType(T2, Quals2); | |||
5414 | ||||
5415 | Quals1.removeCVRQualifiers(); | |||
5416 | Quals2.removeCVRQualifiers(); | |||
5417 | if (Quals1 != Quals2) | |||
5418 | return false; | |||
5419 | ||||
5420 | if (hasSameType(T1, T2)) | |||
5421 | return true; | |||
5422 | ||||
5423 | if (!UnwrapSimilarTypes(T1, T2)) | |||
5424 | return false; | |||
5425 | } | |||
5426 | } | |||
5427 | ||||
5428 | DeclarationNameInfo | |||
5429 | ASTContext::getNameForTemplate(TemplateName Name, | |||
5430 | SourceLocation NameLoc) const { | |||
5431 | switch (Name.getKind()) { | |||
5432 | case TemplateName::QualifiedTemplate: | |||
5433 | case TemplateName::Template: | |||
5434 | // DNInfo work in progress: CHECKME: what about DNLoc? | |||
5435 | return DeclarationNameInfo(Name.getAsTemplateDecl()->getDeclName(), | |||
5436 | NameLoc); | |||
5437 | ||||
5438 | case TemplateName::OverloadedTemplate: { | |||
5439 | OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); | |||
5440 | // DNInfo work in progress: CHECKME: what about DNLoc? | |||
5441 | return DeclarationNameInfo((*Storage->begin())->getDeclName(), NameLoc); | |||
5442 | } | |||
5443 | ||||
5444 | case TemplateName::AssumedTemplate: { | |||
5445 | AssumedTemplateStorage *Storage = Name.getAsAssumedTemplateName(); | |||
5446 | return DeclarationNameInfo(Storage->getDeclName(), NameLoc); | |||
5447 | } | |||
5448 | ||||
5449 | case TemplateName::DependentTemplate: { | |||
5450 | DependentTemplateName *DTN = Name.getAsDependentTemplateName(); | |||
5451 | DeclarationName DName; | |||
5452 | if (DTN->isIdentifier()) { | |||
5453 | DName = DeclarationNames.getIdentifier(DTN->getIdentifier()); | |||
5454 | return DeclarationNameInfo(DName, NameLoc); | |||
5455 | } else { | |||
5456 | DName = DeclarationNames.getCXXOperatorName(DTN->getOperator()); | |||
5457 | // DNInfo work in progress: FIXME: source locations? | |||
5458 | DeclarationNameLoc DNLoc; | |||
5459 | DNLoc.CXXOperatorName.BeginOpNameLoc = SourceLocation().getRawEncoding(); | |||
5460 | DNLoc.CXXOperatorName.EndOpNameLoc = SourceLocation().getRawEncoding(); | |||
5461 | return DeclarationNameInfo(DName, NameLoc, DNLoc); | |||
5462 | } | |||
5463 | } | |||
5464 | ||||
5465 | case TemplateName::SubstTemplateTemplateParm: { | |||
5466 | SubstTemplateTemplateParmStorage *subst | |||
5467 | = Name.getAsSubstTemplateTemplateParm(); | |||
5468 | return DeclarationNameInfo(subst->getParameter()->getDeclName(), | |||
5469 | NameLoc); | |||
5470 | } | |||
5471 | ||||
5472 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
5473 | SubstTemplateTemplateParmPackStorage *subst | |||
5474 | = Name.getAsSubstTemplateTemplateParmPack(); | |||
5475 | return DeclarationNameInfo(subst->getParameterPack()->getDeclName(), | |||
5476 | NameLoc); | |||
5477 | } | |||
5478 | } | |||
5479 | ||||
5480 | llvm_unreachable("bad template name kind!")::llvm::llvm_unreachable_internal("bad template name kind!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5480); | |||
5481 | } | |||
5482 | ||||
5483 | TemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) const { | |||
5484 | switch (Name.getKind()) { | |||
5485 | case TemplateName::QualifiedTemplate: | |||
5486 | case TemplateName::Template: { | |||
5487 | TemplateDecl *Template = Name.getAsTemplateDecl(); | |||
5488 | if (auto *TTP = dyn_cast<TemplateTemplateParmDecl>(Template)) | |||
5489 | Template = getCanonicalTemplateTemplateParmDecl(TTP); | |||
5490 | ||||
5491 | // The canonical template name is the canonical template declaration. | |||
5492 | return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); | |||
5493 | } | |||
5494 | ||||
5495 | case TemplateName::OverloadedTemplate: | |||
5496 | case TemplateName::AssumedTemplate: | |||
5497 | llvm_unreachable("cannot canonicalize unresolved template")::llvm::llvm_unreachable_internal("cannot canonicalize unresolved template" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5497); | |||
5498 | ||||
5499 | case TemplateName::DependentTemplate: { | |||
5500 | DependentTemplateName *DTN = Name.getAsDependentTemplateName(); | |||
5501 | assert(DTN && "Non-dependent template names must refer to template decls.")((DTN && "Non-dependent template names must refer to template decls." ) ? static_cast<void> (0) : __assert_fail ("DTN && \"Non-dependent template names must refer to template decls.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5501, __PRETTY_FUNCTION__)); | |||
5502 | return DTN->CanonicalTemplateName; | |||
5503 | } | |||
5504 | ||||
5505 | case TemplateName::SubstTemplateTemplateParm: { | |||
5506 | SubstTemplateTemplateParmStorage *subst | |||
5507 | = Name.getAsSubstTemplateTemplateParm(); | |||
5508 | return getCanonicalTemplateName(subst->getReplacement()); | |||
5509 | } | |||
5510 | ||||
5511 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
5512 | SubstTemplateTemplateParmPackStorage *subst | |||
5513 | = Name.getAsSubstTemplateTemplateParmPack(); | |||
5514 | TemplateTemplateParmDecl *canonParameter | |||
5515 | = getCanonicalTemplateTemplateParmDecl(subst->getParameterPack()); | |||
5516 | TemplateArgument canonArgPack | |||
5517 | = getCanonicalTemplateArgument(subst->getArgumentPack()); | |||
5518 | return getSubstTemplateTemplateParmPack(canonParameter, canonArgPack); | |||
5519 | } | |||
5520 | } | |||
5521 | ||||
5522 | llvm_unreachable("bad template name!")::llvm::llvm_unreachable_internal("bad template name!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5522); | |||
5523 | } | |||
5524 | ||||
5525 | bool ASTContext::hasSameTemplateName(TemplateName X, TemplateName Y) { | |||
5526 | X = getCanonicalTemplateName(X); | |||
5527 | Y = getCanonicalTemplateName(Y); | |||
5528 | return X.getAsVoidPointer() == Y.getAsVoidPointer(); | |||
5529 | } | |||
5530 | ||||
5531 | TemplateArgument | |||
5532 | ASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) const { | |||
5533 | switch (Arg.getKind()) { | |||
5534 | case TemplateArgument::Null: | |||
5535 | return Arg; | |||
5536 | ||||
5537 | case TemplateArgument::Expression: | |||
5538 | return Arg; | |||
5539 | ||||
5540 | case TemplateArgument::Declaration: { | |||
5541 | auto *D = cast<ValueDecl>(Arg.getAsDecl()->getCanonicalDecl()); | |||
5542 | return TemplateArgument(D, Arg.getParamTypeForDecl()); | |||
5543 | } | |||
5544 | ||||
5545 | case TemplateArgument::NullPtr: | |||
5546 | return TemplateArgument(getCanonicalType(Arg.getNullPtrType()), | |||
5547 | /*isNullPtr*/true); | |||
5548 | ||||
5549 | case TemplateArgument::Template: | |||
5550 | return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); | |||
5551 | ||||
5552 | case TemplateArgument::TemplateExpansion: | |||
5553 | return TemplateArgument(getCanonicalTemplateName( | |||
5554 | Arg.getAsTemplateOrTemplatePattern()), | |||
5555 | Arg.getNumTemplateExpansions()); | |||
5556 | ||||
5557 | case TemplateArgument::Integral: | |||
5558 | return TemplateArgument(Arg, getCanonicalType(Arg.getIntegralType())); | |||
5559 | ||||
5560 | case TemplateArgument::Type: | |||
5561 | return TemplateArgument(getCanonicalType(Arg.getAsType())); | |||
5562 | ||||
5563 | case TemplateArgument::Pack: { | |||
5564 | if (Arg.pack_size() == 0) | |||
5565 | return Arg; | |||
5566 | ||||
5567 | auto *CanonArgs = new (*this) TemplateArgument[Arg.pack_size()]; | |||
5568 | unsigned Idx = 0; | |||
5569 | for (TemplateArgument::pack_iterator A = Arg.pack_begin(), | |||
5570 | AEnd = Arg.pack_end(); | |||
5571 | A != AEnd; (void)++A, ++Idx) | |||
5572 | CanonArgs[Idx] = getCanonicalTemplateArgument(*A); | |||
5573 | ||||
5574 | return TemplateArgument(llvm::makeArrayRef(CanonArgs, Arg.pack_size())); | |||
5575 | } | |||
5576 | } | |||
5577 | ||||
5578 | // Silence GCC warning | |||
5579 | llvm_unreachable("Unhandled template argument kind")::llvm::llvm_unreachable_internal("Unhandled template argument kind" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5579); | |||
5580 | } | |||
5581 | ||||
5582 | NestedNameSpecifier * | |||
5583 | ASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) const { | |||
5584 | if (!NNS) | |||
5585 | return nullptr; | |||
5586 | ||||
5587 | switch (NNS->getKind()) { | |||
5588 | case NestedNameSpecifier::Identifier: | |||
5589 | // Canonicalize the prefix but keep the identifier the same. | |||
5590 | return NestedNameSpecifier::Create(*this, | |||
5591 | getCanonicalNestedNameSpecifier(NNS->getPrefix()), | |||
5592 | NNS->getAsIdentifier()); | |||
5593 | ||||
5594 | case NestedNameSpecifier::Namespace: | |||
5595 | // A namespace is canonical; build a nested-name-specifier with | |||
5596 | // this namespace and no prefix. | |||
5597 | return NestedNameSpecifier::Create(*this, nullptr, | |||
5598 | NNS->getAsNamespace()->getOriginalNamespace()); | |||
5599 | ||||
5600 | case NestedNameSpecifier::NamespaceAlias: | |||
5601 | // A namespace is canonical; build a nested-name-specifier with | |||
5602 | // this namespace and no prefix. | |||
5603 | return NestedNameSpecifier::Create(*this, nullptr, | |||
5604 | NNS->getAsNamespaceAlias()->getNamespace() | |||
5605 | ->getOriginalNamespace()); | |||
5606 | ||||
5607 | case NestedNameSpecifier::TypeSpec: | |||
5608 | case NestedNameSpecifier::TypeSpecWithTemplate: { | |||
5609 | QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); | |||
5610 | ||||
5611 | // If we have some kind of dependent-named type (e.g., "typename T::type"), | |||
5612 | // break it apart into its prefix and identifier, then reconsititute those | |||
5613 | // as the canonical nested-name-specifier. This is required to canonicalize | |||
5614 | // a dependent nested-name-specifier involving typedefs of dependent-name | |||
5615 | // types, e.g., | |||
5616 | // typedef typename T::type T1; | |||
5617 | // typedef typename T1::type T2; | |||
5618 | if (const auto *DNT = T->getAs<DependentNameType>()) | |||
5619 | return NestedNameSpecifier::Create(*this, DNT->getQualifier(), | |||
5620 | const_cast<IdentifierInfo *>(DNT->getIdentifier())); | |||
5621 | ||||
5622 | // Otherwise, just canonicalize the type, and force it to be a TypeSpec. | |||
5623 | // FIXME: Why are TypeSpec and TypeSpecWithTemplate distinct in the | |||
5624 | // first place? | |||
5625 | return NestedNameSpecifier::Create(*this, nullptr, false, | |||
5626 | const_cast<Type *>(T.getTypePtr())); | |||
5627 | } | |||
5628 | ||||
5629 | case NestedNameSpecifier::Global: | |||
5630 | case NestedNameSpecifier::Super: | |||
5631 | // The global specifier and __super specifer are canonical and unique. | |||
5632 | return NNS; | |||
5633 | } | |||
5634 | ||||
5635 | llvm_unreachable("Invalid NestedNameSpecifier::Kind!")::llvm::llvm_unreachable_internal("Invalid NestedNameSpecifier::Kind!" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5635); | |||
5636 | } | |||
5637 | ||||
5638 | const ArrayType *ASTContext::getAsArrayType(QualType T) const { | |||
5639 | // Handle the non-qualified case efficiently. | |||
5640 | if (!T.hasLocalQualifiers()) { | |||
5641 | // Handle the common positive case fast. | |||
5642 | if (const auto *AT = dyn_cast<ArrayType>(T)) | |||
5643 | return AT; | |||
5644 | } | |||
5645 | ||||
5646 | // Handle the common negative case fast. | |||
5647 | if (!isa<ArrayType>(T.getCanonicalType())) | |||
5648 | return nullptr; | |||
5649 | ||||
5650 | // Apply any qualifiers from the array type to the element type. This | |||
5651 | // implements C99 6.7.3p8: "If the specification of an array type includes | |||
5652 | // any type qualifiers, the element type is so qualified, not the array type." | |||
5653 | ||||
5654 | // If we get here, we either have type qualifiers on the type, or we have | |||
5655 | // sugar such as a typedef in the way. If we have type qualifiers on the type | |||
5656 | // we must propagate them down into the element type. | |||
5657 | ||||
5658 | SplitQualType split = T.getSplitDesugaredType(); | |||
5659 | Qualifiers qs = split.Quals; | |||
5660 | ||||
5661 | // If we have a simple case, just return now. | |||
5662 | const auto *ATy = dyn_cast<ArrayType>(split.Ty); | |||
5663 | if (!ATy || qs.empty()) | |||
5664 | return ATy; | |||
5665 | ||||
5666 | // Otherwise, we have an array and we have qualifiers on it. Push the | |||
5667 | // qualifiers into the array element type and return a new array type. | |||
5668 | QualType NewEltTy = getQualifiedType(ATy->getElementType(), qs); | |||
5669 | ||||
5670 | if (const auto *CAT = dyn_cast<ConstantArrayType>(ATy)) | |||
5671 | return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), | |||
5672 | CAT->getSizeExpr(), | |||
5673 | CAT->getSizeModifier(), | |||
5674 | CAT->getIndexTypeCVRQualifiers())); | |||
5675 | if (const auto *IAT = dyn_cast<IncompleteArrayType>(ATy)) | |||
5676 | return cast<ArrayType>(getIncompleteArrayType(NewEltTy, | |||
5677 | IAT->getSizeModifier(), | |||
5678 | IAT->getIndexTypeCVRQualifiers())); | |||
5679 | ||||
5680 | if (const auto *DSAT = dyn_cast<DependentSizedArrayType>(ATy)) | |||
5681 | return cast<ArrayType>( | |||
5682 | getDependentSizedArrayType(NewEltTy, | |||
5683 | DSAT->getSizeExpr(), | |||
5684 | DSAT->getSizeModifier(), | |||
5685 | DSAT->getIndexTypeCVRQualifiers(), | |||
5686 | DSAT->getBracketsRange())); | |||
5687 | ||||
5688 | const auto *VAT = cast<VariableArrayType>(ATy); | |||
5689 | return cast<ArrayType>(getVariableArrayType(NewEltTy, | |||
5690 | VAT->getSizeExpr(), | |||
5691 | VAT->getSizeModifier(), | |||
5692 | VAT->getIndexTypeCVRQualifiers(), | |||
5693 | VAT->getBracketsRange())); | |||
5694 | } | |||
5695 | ||||
5696 | QualType ASTContext::getAdjustedParameterType(QualType T) const { | |||
5697 | if (T->isArrayType() || T->isFunctionType()) | |||
5698 | return getDecayedType(T); | |||
5699 | return T; | |||
5700 | } | |||
5701 | ||||
5702 | QualType ASTContext::getSignatureParameterType(QualType T) const { | |||
5703 | T = getVariableArrayDecayedType(T); | |||
5704 | T = getAdjustedParameterType(T); | |||
5705 | return T.getUnqualifiedType(); | |||
5706 | } | |||
5707 | ||||
5708 | QualType ASTContext::getExceptionObjectType(QualType T) const { | |||
5709 | // C++ [except.throw]p3: | |||
5710 | // A throw-expression initializes a temporary object, called the exception | |||
5711 | // object, the type of which is determined by removing any top-level | |||
5712 | // cv-qualifiers from the static type of the operand of throw and adjusting | |||
5713 | // the type from "array of T" or "function returning T" to "pointer to T" | |||
5714 | // or "pointer to function returning T", [...] | |||
5715 | T = getVariableArrayDecayedType(T); | |||
5716 | if (T->isArrayType() || T->isFunctionType()) | |||
5717 | T = getDecayedType(T); | |||
5718 | return T.getUnqualifiedType(); | |||
5719 | } | |||
5720 | ||||
5721 | /// getArrayDecayedType - Return the properly qualified result of decaying the | |||
5722 | /// specified array type to a pointer. This operation is non-trivial when | |||
5723 | /// handling typedefs etc. The canonical type of "T" must be an array type, | |||
5724 | /// this returns a pointer to a properly qualified element of the array. | |||
5725 | /// | |||
5726 | /// See C99 6.7.5.3p7 and C99 6.3.2.1p3. | |||
5727 | QualType ASTContext::getArrayDecayedType(QualType Ty) const { | |||
5728 | // Get the element type with 'getAsArrayType' so that we don't lose any | |||
5729 | // typedefs in the element type of the array. This also handles propagation | |||
5730 | // of type qualifiers from the array type into the element type if present | |||
5731 | // (C99 6.7.3p8). | |||
5732 | const ArrayType *PrettyArrayType = getAsArrayType(Ty); | |||
5733 | assert(PrettyArrayType && "Not an array type!")((PrettyArrayType && "Not an array type!") ? static_cast <void> (0) : __assert_fail ("PrettyArrayType && \"Not an array type!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5733, __PRETTY_FUNCTION__)); | |||
5734 | ||||
5735 | QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); | |||
5736 | ||||
5737 | // int x[restrict 4] -> int *restrict | |||
5738 | QualType Result = getQualifiedType(PtrTy, | |||
5739 | PrettyArrayType->getIndexTypeQualifiers()); | |||
5740 | ||||
5741 | // int x[_Nullable] -> int * _Nullable | |||
5742 | if (auto Nullability = Ty->getNullability(*this)) { | |||
5743 | Result = const_cast<ASTContext *>(this)->getAttributedType( | |||
5744 | AttributedType::getNullabilityAttrKind(*Nullability), Result, Result); | |||
5745 | } | |||
5746 | return Result; | |||
5747 | } | |||
5748 | ||||
5749 | QualType ASTContext::getBaseElementType(const ArrayType *array) const { | |||
5750 | return getBaseElementType(array->getElementType()); | |||
5751 | } | |||
5752 | ||||
5753 | QualType ASTContext::getBaseElementType(QualType type) const { | |||
5754 | Qualifiers qs; | |||
5755 | while (true) { | |||
5756 | SplitQualType split = type.getSplitDesugaredType(); | |||
5757 | const ArrayType *array = split.Ty->getAsArrayTypeUnsafe(); | |||
5758 | if (!array) break; | |||
5759 | ||||
5760 | type = array->getElementType(); | |||
5761 | qs.addConsistentQualifiers(split.Quals); | |||
5762 | } | |||
5763 | ||||
5764 | return getQualifiedType(type, qs); | |||
5765 | } | |||
5766 | ||||
5767 | /// getConstantArrayElementCount - Returns number of constant array elements. | |||
5768 | uint64_t | |||
5769 | ASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { | |||
5770 | uint64_t ElementCount = 1; | |||
5771 | do { | |||
5772 | ElementCount *= CA->getSize().getZExtValue(); | |||
5773 | CA = dyn_cast_or_null<ConstantArrayType>( | |||
5774 | CA->getElementType()->getAsArrayTypeUnsafe()); | |||
5775 | } while (CA); | |||
5776 | return ElementCount; | |||
5777 | } | |||
5778 | ||||
5779 | /// getFloatingRank - Return a relative rank for floating point types. | |||
5780 | /// This routine will assert if passed a built-in type that isn't a float. | |||
5781 | static FloatingRank getFloatingRank(QualType T) { | |||
5782 | if (const auto *CT = T->getAs<ComplexType>()) | |||
5783 | return getFloatingRank(CT->getElementType()); | |||
5784 | ||||
5785 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
5786 | default: llvm_unreachable("getFloatingRank(): not a floating type")::llvm::llvm_unreachable_internal("getFloatingRank(): not a floating type" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5786); | |||
5787 | case BuiltinType::Float16: return Float16Rank; | |||
5788 | case BuiltinType::Half: return HalfRank; | |||
5789 | case BuiltinType::Float: return FloatRank; | |||
5790 | case BuiltinType::Double: return DoubleRank; | |||
5791 | case BuiltinType::LongDouble: return LongDoubleRank; | |||
5792 | case BuiltinType::Float128: return Float128Rank; | |||
5793 | } | |||
5794 | } | |||
5795 | ||||
5796 | /// getFloatingTypeOfSizeWithinDomain - Returns a real floating | |||
5797 | /// point or a complex type (based on typeDomain/typeSize). | |||
5798 | /// 'typeDomain' is a real floating point or complex type. | |||
5799 | /// 'typeSize' is a real floating point or complex type. | |||
5800 | QualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, | |||
5801 | QualType Domain) const { | |||
5802 | FloatingRank EltRank = getFloatingRank(Size); | |||
5803 | if (Domain->isComplexType()) { | |||
5804 | switch (EltRank) { | |||
5805 | case Float16Rank: | |||
5806 | case HalfRank: llvm_unreachable("Complex half is not supported")::llvm::llvm_unreachable_internal("Complex half is not supported" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5806); | |||
5807 | case FloatRank: return FloatComplexTy; | |||
5808 | case DoubleRank: return DoubleComplexTy; | |||
5809 | case LongDoubleRank: return LongDoubleComplexTy; | |||
5810 | case Float128Rank: return Float128ComplexTy; | |||
5811 | } | |||
5812 | } | |||
5813 | ||||
5814 | assert(Domain->isRealFloatingType() && "Unknown domain!")((Domain->isRealFloatingType() && "Unknown domain!" ) ? static_cast<void> (0) : __assert_fail ("Domain->isRealFloatingType() && \"Unknown domain!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5814, __PRETTY_FUNCTION__)); | |||
5815 | switch (EltRank) { | |||
5816 | case Float16Rank: return HalfTy; | |||
5817 | case HalfRank: return HalfTy; | |||
5818 | case FloatRank: return FloatTy; | |||
5819 | case DoubleRank: return DoubleTy; | |||
5820 | case LongDoubleRank: return LongDoubleTy; | |||
5821 | case Float128Rank: return Float128Ty; | |||
5822 | } | |||
5823 | llvm_unreachable("getFloatingRank(): illegal value for rank")::llvm::llvm_unreachable_internal("getFloatingRank(): illegal value for rank" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5823); | |||
5824 | } | |||
5825 | ||||
5826 | /// getFloatingTypeOrder - Compare the rank of the two specified floating | |||
5827 | /// point types, ignoring the domain of the type (i.e. 'double' == | |||
5828 | /// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If | |||
5829 | /// LHS < RHS, return -1. | |||
5830 | int ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) const { | |||
5831 | FloatingRank LHSR = getFloatingRank(LHS); | |||
5832 | FloatingRank RHSR = getFloatingRank(RHS); | |||
5833 | ||||
5834 | if (LHSR == RHSR) | |||
5835 | return 0; | |||
5836 | if (LHSR > RHSR) | |||
5837 | return 1; | |||
5838 | return -1; | |||
5839 | } | |||
5840 | ||||
5841 | int ASTContext::getFloatingTypeSemanticOrder(QualType LHS, QualType RHS) const { | |||
5842 | if (&getFloatTypeSemantics(LHS) == &getFloatTypeSemantics(RHS)) | |||
5843 | return 0; | |||
5844 | return getFloatingTypeOrder(LHS, RHS); | |||
5845 | } | |||
5846 | ||||
5847 | /// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This | |||
5848 | /// routine will assert if passed a built-in type that isn't an integer or enum, | |||
5849 | /// or if it is not canonicalized. | |||
5850 | unsigned ASTContext::getIntegerRank(const Type *T) const { | |||
5851 | assert(T->isCanonicalUnqualified() && "T should be canonicalized")((T->isCanonicalUnqualified() && "T should be canonicalized" ) ? static_cast<void> (0) : __assert_fail ("T->isCanonicalUnqualified() && \"T should be canonicalized\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5851, __PRETTY_FUNCTION__)); | |||
5852 | ||||
5853 | switch (cast<BuiltinType>(T)->getKind()) { | |||
5854 | default: llvm_unreachable("getIntegerRank(): not a built-in integer")::llvm::llvm_unreachable_internal("getIntegerRank(): not a built-in integer" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5854); | |||
5855 | case BuiltinType::Bool: | |||
5856 | return 1 + (getIntWidth(BoolTy) << 3); | |||
5857 | case BuiltinType::Char_S: | |||
5858 | case BuiltinType::Char_U: | |||
5859 | case BuiltinType::SChar: | |||
5860 | case BuiltinType::UChar: | |||
5861 | return 2 + (getIntWidth(CharTy) << 3); | |||
5862 | case BuiltinType::Short: | |||
5863 | case BuiltinType::UShort: | |||
5864 | return 3 + (getIntWidth(ShortTy) << 3); | |||
5865 | case BuiltinType::Int: | |||
5866 | case BuiltinType::UInt: | |||
5867 | return 4 + (getIntWidth(IntTy) << 3); | |||
5868 | case BuiltinType::Long: | |||
5869 | case BuiltinType::ULong: | |||
5870 | return 5 + (getIntWidth(LongTy) << 3); | |||
5871 | case BuiltinType::LongLong: | |||
5872 | case BuiltinType::ULongLong: | |||
5873 | return 6 + (getIntWidth(LongLongTy) << 3); | |||
5874 | case BuiltinType::Int128: | |||
5875 | case BuiltinType::UInt128: | |||
5876 | return 7 + (getIntWidth(Int128Ty) << 3); | |||
5877 | } | |||
5878 | } | |||
5879 | ||||
5880 | /// Whether this is a promotable bitfield reference according | |||
5881 | /// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). | |||
5882 | /// | |||
5883 | /// \returns the type this bit-field will promote to, or NULL if no | |||
5884 | /// promotion occurs. | |||
5885 | QualType ASTContext::isPromotableBitField(Expr *E) const { | |||
5886 | if (E->isTypeDependent() || E->isValueDependent()) | |||
5887 | return {}; | |||
5888 | ||||
5889 | // C++ [conv.prom]p5: | |||
5890 | // If the bit-field has an enumerated type, it is treated as any other | |||
5891 | // value of that type for promotion purposes. | |||
5892 | if (getLangOpts().CPlusPlus && E->getType()->isEnumeralType()) | |||
5893 | return {}; | |||
5894 | ||||
5895 | // FIXME: We should not do this unless E->refersToBitField() is true. This | |||
5896 | // matters in C where getSourceBitField() will find bit-fields for various | |||
5897 | // cases where the source expression is not a bit-field designator. | |||
5898 | ||||
5899 | FieldDecl *Field = E->getSourceBitField(); // FIXME: conditional bit-fields? | |||
5900 | if (!Field) | |||
5901 | return {}; | |||
5902 | ||||
5903 | QualType FT = Field->getType(); | |||
5904 | ||||
5905 | uint64_t BitWidth = Field->getBitWidthValue(*this); | |||
5906 | uint64_t IntSize = getTypeSize(IntTy); | |||
5907 | // C++ [conv.prom]p5: | |||
5908 | // A prvalue for an integral bit-field can be converted to a prvalue of type | |||
5909 | // int if int can represent all the values of the bit-field; otherwise, it | |||
5910 | // can be converted to unsigned int if unsigned int can represent all the | |||
5911 | // values of the bit-field. If the bit-field is larger yet, no integral | |||
5912 | // promotion applies to it. | |||
5913 | // C11 6.3.1.1/2: | |||
5914 | // [For a bit-field of type _Bool, int, signed int, or unsigned int:] | |||
5915 | // If an int can represent all values of the original type (as restricted by | |||
5916 | // the width, for a bit-field), the value is converted to an int; otherwise, | |||
5917 | // it is converted to an unsigned int. | |||
5918 | // | |||
5919 | // FIXME: C does not permit promotion of a 'long : 3' bitfield to int. | |||
5920 | // We perform that promotion here to match GCC and C++. | |||
5921 | // FIXME: C does not permit promotion of an enum bit-field whose rank is | |||
5922 | // greater than that of 'int'. We perform that promotion to match GCC. | |||
5923 | if (BitWidth < IntSize) | |||
5924 | return IntTy; | |||
5925 | ||||
5926 | if (BitWidth == IntSize) | |||
5927 | return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; | |||
5928 | ||||
5929 | // Bit-fields wider than int are not subject to promotions, and therefore act | |||
5930 | // like the base type. GCC has some weird bugs in this area that we | |||
5931 | // deliberately do not follow (GCC follows a pre-standard resolution to | |||
5932 | // C's DR315 which treats bit-width as being part of the type, and this leaks | |||
5933 | // into their semantics in some cases). | |||
5934 | return {}; | |||
5935 | } | |||
5936 | ||||
5937 | /// getPromotedIntegerType - Returns the type that Promotable will | |||
5938 | /// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable | |||
5939 | /// integer type. | |||
5940 | QualType ASTContext::getPromotedIntegerType(QualType Promotable) const { | |||
5941 | assert(!Promotable.isNull())((!Promotable.isNull()) ? static_cast<void> (0) : __assert_fail ("!Promotable.isNull()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5941, __PRETTY_FUNCTION__)); | |||
5942 | assert(Promotable->isPromotableIntegerType())((Promotable->isPromotableIntegerType()) ? static_cast< void> (0) : __assert_fail ("Promotable->isPromotableIntegerType()" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5942, __PRETTY_FUNCTION__)); | |||
5943 | if (const auto *ET = Promotable->getAs<EnumType>()) | |||
5944 | return ET->getDecl()->getPromotionType(); | |||
5945 | ||||
5946 | if (const auto *BT = Promotable->getAs<BuiltinType>()) { | |||
5947 | // C++ [conv.prom]: A prvalue of type char16_t, char32_t, or wchar_t | |||
5948 | // (3.9.1) can be converted to a prvalue of the first of the following | |||
5949 | // types that can represent all the values of its underlying type: | |||
5950 | // int, unsigned int, long int, unsigned long int, long long int, or | |||
5951 | // unsigned long long int [...] | |||
5952 | // FIXME: Is there some better way to compute this? | |||
5953 | if (BT->getKind() == BuiltinType::WChar_S || | |||
5954 | BT->getKind() == BuiltinType::WChar_U || | |||
5955 | BT->getKind() == BuiltinType::Char8 || | |||
5956 | BT->getKind() == BuiltinType::Char16 || | |||
5957 | BT->getKind() == BuiltinType::Char32) { | |||
5958 | bool FromIsSigned = BT->getKind() == BuiltinType::WChar_S; | |||
5959 | uint64_t FromSize = getTypeSize(BT); | |||
5960 | QualType PromoteTypes[] = { IntTy, UnsignedIntTy, LongTy, UnsignedLongTy, | |||
5961 | LongLongTy, UnsignedLongLongTy }; | |||
5962 | for (size_t Idx = 0; Idx < llvm::array_lengthof(PromoteTypes); ++Idx) { | |||
5963 | uint64_t ToSize = getTypeSize(PromoteTypes[Idx]); | |||
5964 | if (FromSize < ToSize || | |||
5965 | (FromSize == ToSize && | |||
5966 | FromIsSigned == PromoteTypes[Idx]->isSignedIntegerType())) | |||
5967 | return PromoteTypes[Idx]; | |||
5968 | } | |||
5969 | llvm_unreachable("char type should fit into long long")::llvm::llvm_unreachable_internal("char type should fit into long long" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5969); | |||
5970 | } | |||
5971 | } | |||
5972 | ||||
5973 | // At this point, we should have a signed or unsigned integer type. | |||
5974 | if (Promotable->isSignedIntegerType()) | |||
5975 | return IntTy; | |||
5976 | uint64_t PromotableSize = getIntWidth(Promotable); | |||
5977 | uint64_t IntSize = getIntWidth(IntTy); | |||
5978 | assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize)((Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize) ? static_cast<void> (0) : __assert_fail ("Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 5978, __PRETTY_FUNCTION__)); | |||
5979 | return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; | |||
5980 | } | |||
5981 | ||||
5982 | /// Recurses in pointer/array types until it finds an objc retainable | |||
5983 | /// type and returns its ownership. | |||
5984 | Qualifiers::ObjCLifetime ASTContext::getInnerObjCOwnership(QualType T) const { | |||
5985 | while (!T.isNull()) { | |||
5986 | if (T.getObjCLifetime() != Qualifiers::OCL_None) | |||
5987 | return T.getObjCLifetime(); | |||
5988 | if (T->isArrayType()) | |||
5989 | T = getBaseElementType(T); | |||
5990 | else if (const auto *PT = T->getAs<PointerType>()) | |||
5991 | T = PT->getPointeeType(); | |||
5992 | else if (const auto *RT = T->getAs<ReferenceType>()) | |||
5993 | T = RT->getPointeeType(); | |||
5994 | else | |||
5995 | break; | |||
5996 | } | |||
5997 | ||||
5998 | return Qualifiers::OCL_None; | |||
5999 | } | |||
6000 | ||||
6001 | static const Type *getIntegerTypeForEnum(const EnumType *ET) { | |||
6002 | // Incomplete enum types are not treated as integer types. | |||
6003 | // FIXME: In C++, enum types are never integer types. | |||
6004 | if (ET->getDecl()->isComplete() && !ET->getDecl()->isScoped()) | |||
6005 | return ET->getDecl()->getIntegerType().getTypePtr(); | |||
6006 | return nullptr; | |||
6007 | } | |||
6008 | ||||
6009 | /// getIntegerTypeOrder - Returns the highest ranked integer type: | |||
6010 | /// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If | |||
6011 | /// LHS < RHS, return -1. | |||
6012 | int ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) const { | |||
6013 | const Type *LHSC = getCanonicalType(LHS).getTypePtr(); | |||
6014 | const Type *RHSC = getCanonicalType(RHS).getTypePtr(); | |||
6015 | ||||
6016 | // Unwrap enums to their underlying type. | |||
6017 | if (const auto *ET = dyn_cast<EnumType>(LHSC)) | |||
6018 | LHSC = getIntegerTypeForEnum(ET); | |||
6019 | if (const auto *ET = dyn_cast<EnumType>(RHSC)) | |||
6020 | RHSC = getIntegerTypeForEnum(ET); | |||
6021 | ||||
6022 | if (LHSC == RHSC) return 0; | |||
6023 | ||||
6024 | bool LHSUnsigned = LHSC->isUnsignedIntegerType(); | |||
6025 | bool RHSUnsigned = RHSC->isUnsignedIntegerType(); | |||
6026 | ||||
6027 | unsigned LHSRank = getIntegerRank(LHSC); | |||
6028 | unsigned RHSRank = getIntegerRank(RHSC); | |||
6029 | ||||
6030 | if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. | |||
6031 | if (LHSRank == RHSRank) return 0; | |||
6032 | return LHSRank > RHSRank ? 1 : -1; | |||
6033 | } | |||
6034 | ||||
6035 | // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. | |||
6036 | if (LHSUnsigned) { | |||
6037 | // If the unsigned [LHS] type is larger, return it. | |||
6038 | if (LHSRank >= RHSRank) | |||
6039 | return 1; | |||
6040 | ||||
6041 | // If the signed type can represent all values of the unsigned type, it | |||
6042 | // wins. Because we are dealing with 2's complement and types that are | |||
6043 | // powers of two larger than each other, this is always safe. | |||
6044 | return -1; | |||
6045 | } | |||
6046 | ||||
6047 | // If the unsigned [RHS] type is larger, return it. | |||
6048 | if (RHSRank >= LHSRank) | |||
6049 | return -1; | |||
6050 | ||||
6051 | // If the signed type can represent all values of the unsigned type, it | |||
6052 | // wins. Because we are dealing with 2's complement and types that are | |||
6053 | // powers of two larger than each other, this is always safe. | |||
6054 | return 1; | |||
6055 | } | |||
6056 | ||||
6057 | TypedefDecl *ASTContext::getCFConstantStringDecl() const { | |||
6058 | if (CFConstantStringTypeDecl) | |||
6059 | return CFConstantStringTypeDecl; | |||
6060 | ||||
6061 | assert(!CFConstantStringTagDecl &&((!CFConstantStringTagDecl && "tag and typedef should be initialized together" ) ? static_cast<void> (0) : __assert_fail ("!CFConstantStringTagDecl && \"tag and typedef should be initialized together\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6062, __PRETTY_FUNCTION__)) | |||
6062 | "tag and typedef should be initialized together")((!CFConstantStringTagDecl && "tag and typedef should be initialized together" ) ? static_cast<void> (0) : __assert_fail ("!CFConstantStringTagDecl && \"tag and typedef should be initialized together\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6062, __PRETTY_FUNCTION__)); | |||
6063 | CFConstantStringTagDecl = buildImplicitRecord("__NSConstantString_tag"); | |||
6064 | CFConstantStringTagDecl->startDefinition(); | |||
6065 | ||||
6066 | struct { | |||
6067 | QualType Type; | |||
6068 | const char *Name; | |||
6069 | } Fields[5]; | |||
6070 | unsigned Count = 0; | |||
6071 | ||||
6072 | /// Objective-C ABI | |||
6073 | /// | |||
6074 | /// typedef struct __NSConstantString_tag { | |||
6075 | /// const int *isa; | |||
6076 | /// int flags; | |||
6077 | /// const char *str; | |||
6078 | /// long length; | |||
6079 | /// } __NSConstantString; | |||
6080 | /// | |||
6081 | /// Swift ABI (4.1, 4.2) | |||
6082 | /// | |||
6083 | /// typedef struct __NSConstantString_tag { | |||
6084 | /// uintptr_t _cfisa; | |||
6085 | /// uintptr_t _swift_rc; | |||
6086 | /// _Atomic(uint64_t) _cfinfoa; | |||
6087 | /// const char *_ptr; | |||
6088 | /// uint32_t _length; | |||
6089 | /// } __NSConstantString; | |||
6090 | /// | |||
6091 | /// Swift ABI (5.0) | |||
6092 | /// | |||
6093 | /// typedef struct __NSConstantString_tag { | |||
6094 | /// uintptr_t _cfisa; | |||
6095 | /// uintptr_t _swift_rc; | |||
6096 | /// _Atomic(uint64_t) _cfinfoa; | |||
6097 | /// const char *_ptr; | |||
6098 | /// uintptr_t _length; | |||
6099 | /// } __NSConstantString; | |||
6100 | ||||
6101 | const auto CFRuntime = getLangOpts().CFRuntime; | |||
6102 | if (static_cast<unsigned>(CFRuntime) < | |||
6103 | static_cast<unsigned>(LangOptions::CoreFoundationABI::Swift)) { | |||
6104 | Fields[Count++] = { getPointerType(IntTy.withConst()), "isa" }; | |||
6105 | Fields[Count++] = { IntTy, "flags" }; | |||
6106 | Fields[Count++] = { getPointerType(CharTy.withConst()), "str" }; | |||
6107 | Fields[Count++] = { LongTy, "length" }; | |||
6108 | } else { | |||
6109 | Fields[Count++] = { getUIntPtrType(), "_cfisa" }; | |||
6110 | Fields[Count++] = { getUIntPtrType(), "_swift_rc" }; | |||
6111 | Fields[Count++] = { getFromTargetType(Target->getUInt64Type()), "_swift_rc" }; | |||
6112 | Fields[Count++] = { getPointerType(CharTy.withConst()), "_ptr" }; | |||
6113 | if (CFRuntime == LangOptions::CoreFoundationABI::Swift4_1 || | |||
6114 | CFRuntime == LangOptions::CoreFoundationABI::Swift4_2) | |||
6115 | Fields[Count++] = { IntTy, "_ptr" }; | |||
6116 | else | |||
6117 | Fields[Count++] = { getUIntPtrType(), "_ptr" }; | |||
6118 | } | |||
6119 | ||||
6120 | // Create fields | |||
6121 | for (unsigned i = 0; i < Count; ++i) { | |||
6122 | FieldDecl *Field = | |||
6123 | FieldDecl::Create(*this, CFConstantStringTagDecl, SourceLocation(), | |||
6124 | SourceLocation(), &Idents.get(Fields[i].Name), | |||
6125 | Fields[i].Type, /*TInfo=*/nullptr, | |||
6126 | /*BitWidth=*/nullptr, /*Mutable=*/false, ICIS_NoInit); | |||
6127 | Field->setAccess(AS_public); | |||
6128 | CFConstantStringTagDecl->addDecl(Field); | |||
6129 | } | |||
6130 | ||||
6131 | CFConstantStringTagDecl->completeDefinition(); | |||
6132 | // This type is designed to be compatible with NSConstantString, but cannot | |||
6133 | // use the same name, since NSConstantString is an interface. | |||
6134 | auto tagType = getTagDeclType(CFConstantStringTagDecl); | |||
6135 | CFConstantStringTypeDecl = | |||
6136 | buildImplicitTypedef(tagType, "__NSConstantString"); | |||
6137 | ||||
6138 | return CFConstantStringTypeDecl; | |||
6139 | } | |||
6140 | ||||
6141 | RecordDecl *ASTContext::getCFConstantStringTagDecl() const { | |||
6142 | if (!CFConstantStringTagDecl) | |||
6143 | getCFConstantStringDecl(); // Build the tag and the typedef. | |||
6144 | return CFConstantStringTagDecl; | |||
6145 | } | |||
6146 | ||||
6147 | // getCFConstantStringType - Return the type used for constant CFStrings. | |||
6148 | QualType ASTContext::getCFConstantStringType() const { | |||
6149 | return getTypedefType(getCFConstantStringDecl()); | |||
6150 | } | |||
6151 | ||||
6152 | QualType ASTContext::getObjCSuperType() const { | |||
6153 | if (ObjCSuperType.isNull()) { | |||
6154 | RecordDecl *ObjCSuperTypeDecl = buildImplicitRecord("objc_super"); | |||
6155 | TUDecl->addDecl(ObjCSuperTypeDecl); | |||
6156 | ObjCSuperType = getTagDeclType(ObjCSuperTypeDecl); | |||
6157 | } | |||
6158 | return ObjCSuperType; | |||
6159 | } | |||
6160 | ||||
6161 | void ASTContext::setCFConstantStringType(QualType T) { | |||
6162 | const auto *TD = T->castAs<TypedefType>(); | |||
6163 | CFConstantStringTypeDecl = cast<TypedefDecl>(TD->getDecl()); | |||
6164 | const auto *TagType = | |||
6165 | CFConstantStringTypeDecl->getUnderlyingType()->castAs<RecordType>(); | |||
6166 | CFConstantStringTagDecl = TagType->getDecl(); | |||
6167 | } | |||
6168 | ||||
6169 | QualType ASTContext::getBlockDescriptorType() const { | |||
6170 | if (BlockDescriptorType) | |||
6171 | return getTagDeclType(BlockDescriptorType); | |||
6172 | ||||
6173 | RecordDecl *RD; | |||
6174 | // FIXME: Needs the FlagAppleBlock bit. | |||
6175 | RD = buildImplicitRecord("__block_descriptor"); | |||
6176 | RD->startDefinition(); | |||
6177 | ||||
6178 | QualType FieldTypes[] = { | |||
6179 | UnsignedLongTy, | |||
6180 | UnsignedLongTy, | |||
6181 | }; | |||
6182 | ||||
6183 | static const char *const FieldNames[] = { | |||
6184 | "reserved", | |||
6185 | "Size" | |||
6186 | }; | |||
6187 | ||||
6188 | for (size_t i = 0; i < 2; ++i) { | |||
6189 | FieldDecl *Field = FieldDecl::Create( | |||
6190 | *this, RD, SourceLocation(), SourceLocation(), | |||
6191 | &Idents.get(FieldNames[i]), FieldTypes[i], /*TInfo=*/nullptr, | |||
6192 | /*BitWidth=*/nullptr, /*Mutable=*/false, ICIS_NoInit); | |||
6193 | Field->setAccess(AS_public); | |||
6194 | RD->addDecl(Field); | |||
6195 | } | |||
6196 | ||||
6197 | RD->completeDefinition(); | |||
6198 | ||||
6199 | BlockDescriptorType = RD; | |||
6200 | ||||
6201 | return getTagDeclType(BlockDescriptorType); | |||
6202 | } | |||
6203 | ||||
6204 | QualType ASTContext::getBlockDescriptorExtendedType() const { | |||
6205 | if (BlockDescriptorExtendedType) | |||
6206 | return getTagDeclType(BlockDescriptorExtendedType); | |||
6207 | ||||
6208 | RecordDecl *RD; | |||
6209 | // FIXME: Needs the FlagAppleBlock bit. | |||
6210 | RD = buildImplicitRecord("__block_descriptor_withcopydispose"); | |||
6211 | RD->startDefinition(); | |||
6212 | ||||
6213 | QualType FieldTypes[] = { | |||
6214 | UnsignedLongTy, | |||
6215 | UnsignedLongTy, | |||
6216 | getPointerType(VoidPtrTy), | |||
6217 | getPointerType(VoidPtrTy) | |||
6218 | }; | |||
6219 | ||||
6220 | static const char *const FieldNames[] = { | |||
6221 | "reserved", | |||
6222 | "Size", | |||
6223 | "CopyFuncPtr", | |||
6224 | "DestroyFuncPtr" | |||
6225 | }; | |||
6226 | ||||
6227 | for (size_t i = 0; i < 4; ++i) { | |||
6228 | FieldDecl *Field = FieldDecl::Create( | |||
6229 | *this, RD, SourceLocation(), SourceLocation(), | |||
6230 | &Idents.get(FieldNames[i]), FieldTypes[i], /*TInfo=*/nullptr, | |||
6231 | /*BitWidth=*/nullptr, | |||
6232 | /*Mutable=*/false, ICIS_NoInit); | |||
6233 | Field->setAccess(AS_public); | |||
6234 | RD->addDecl(Field); | |||
6235 | } | |||
6236 | ||||
6237 | RD->completeDefinition(); | |||
6238 | ||||
6239 | BlockDescriptorExtendedType = RD; | |||
6240 | return getTagDeclType(BlockDescriptorExtendedType); | |||
6241 | } | |||
6242 | ||||
6243 | OpenCLTypeKind ASTContext::getOpenCLTypeKind(const Type *T) const { | |||
6244 | const auto *BT = dyn_cast<BuiltinType>(T); | |||
6245 | ||||
6246 | if (!BT) { | |||
6247 | if (isa<PipeType>(T)) | |||
6248 | return OCLTK_Pipe; | |||
6249 | ||||
6250 | return OCLTK_Default; | |||
6251 | } | |||
6252 | ||||
6253 | switch (BT->getKind()) { | |||
6254 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
6255 | case BuiltinType::Id: \ | |||
6256 | return OCLTK_Image; | |||
6257 | #include "clang/Basic/OpenCLImageTypes.def" | |||
6258 | ||||
6259 | case BuiltinType::OCLClkEvent: | |||
6260 | return OCLTK_ClkEvent; | |||
6261 | ||||
6262 | case BuiltinType::OCLEvent: | |||
6263 | return OCLTK_Event; | |||
6264 | ||||
6265 | case BuiltinType::OCLQueue: | |||
6266 | return OCLTK_Queue; | |||
6267 | ||||
6268 | case BuiltinType::OCLReserveID: | |||
6269 | return OCLTK_ReserveID; | |||
6270 | ||||
6271 | case BuiltinType::OCLSampler: | |||
6272 | return OCLTK_Sampler; | |||
6273 | ||||
6274 | default: | |||
6275 | return OCLTK_Default; | |||
6276 | } | |||
6277 | } | |||
6278 | ||||
6279 | LangAS ASTContext::getOpenCLTypeAddrSpace(const Type *T) const { | |||
6280 | return Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T)); | |||
6281 | } | |||
6282 | ||||
6283 | /// BlockRequiresCopying - Returns true if byref variable "D" of type "Ty" | |||
6284 | /// requires copy/dispose. Note that this must match the logic | |||
6285 | /// in buildByrefHelpers. | |||
6286 | bool ASTContext::BlockRequiresCopying(QualType Ty, | |||
6287 | const VarDecl *D) { | |||
6288 | if (const CXXRecordDecl *record = Ty->getAsCXXRecordDecl()) { | |||
6289 | const Expr *copyExpr = getBlockVarCopyInit(D).getCopyExpr(); | |||
6290 | if (!copyExpr && record->hasTrivialDestructor()) return false; | |||
6291 | ||||
6292 | return true; | |||
6293 | } | |||
6294 | ||||
6295 | // The block needs copy/destroy helpers if Ty is non-trivial to destructively | |||
6296 | // move or destroy. | |||
6297 | if (Ty.isNonTrivialToPrimitiveDestructiveMove() || Ty.isDestructedType()) | |||
6298 | return true; | |||
6299 | ||||
6300 | if (!Ty->isObjCRetainableType()) return false; | |||
6301 | ||||
6302 | Qualifiers qs = Ty.getQualifiers(); | |||
6303 | ||||
6304 | // If we have lifetime, that dominates. | |||
6305 | if (Qualifiers::ObjCLifetime lifetime = qs.getObjCLifetime()) { | |||
6306 | switch (lifetime) { | |||
6307 | case Qualifiers::OCL_None: llvm_unreachable("impossible")::llvm::llvm_unreachable_internal("impossible", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6307); | |||
6308 | ||||
6309 | // These are just bits as far as the runtime is concerned. | |||
6310 | case Qualifiers::OCL_ExplicitNone: | |||
6311 | case Qualifiers::OCL_Autoreleasing: | |||
6312 | return false; | |||
6313 | ||||
6314 | // These cases should have been taken care of when checking the type's | |||
6315 | // non-triviality. | |||
6316 | case Qualifiers::OCL_Weak: | |||
6317 | case Qualifiers::OCL_Strong: | |||
6318 | llvm_unreachable("impossible")::llvm::llvm_unreachable_internal("impossible", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6318); | |||
6319 | } | |||
6320 | llvm_unreachable("fell out of lifetime switch!")::llvm::llvm_unreachable_internal("fell out of lifetime switch!" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6320); | |||
6321 | } | |||
6322 | return (Ty->isBlockPointerType() || isObjCNSObjectType(Ty) || | |||
6323 | Ty->isObjCObjectPointerType()); | |||
6324 | } | |||
6325 | ||||
6326 | bool ASTContext::getByrefLifetime(QualType Ty, | |||
6327 | Qualifiers::ObjCLifetime &LifeTime, | |||
6328 | bool &HasByrefExtendedLayout) const { | |||
6329 | if (!getLangOpts().ObjC || | |||
6330 | getLangOpts().getGC() != LangOptions::NonGC) | |||
6331 | return false; | |||
6332 | ||||
6333 | HasByrefExtendedLayout = false; | |||
6334 | if (Ty->isRecordType()) { | |||
6335 | HasByrefExtendedLayout = true; | |||
6336 | LifeTime = Qualifiers::OCL_None; | |||
6337 | } else if ((LifeTime = Ty.getObjCLifetime())) { | |||
6338 | // Honor the ARC qualifiers. | |||
6339 | } else if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) { | |||
6340 | // The MRR rule. | |||
6341 | LifeTime = Qualifiers::OCL_ExplicitNone; | |||
6342 | } else { | |||
6343 | LifeTime = Qualifiers::OCL_None; | |||
6344 | } | |||
6345 | return true; | |||
6346 | } | |||
6347 | ||||
6348 | CanQualType ASTContext::getNSUIntegerType() const { | |||
6349 | assert(Target && "Expected target to be initialized")((Target && "Expected target to be initialized") ? static_cast <void> (0) : __assert_fail ("Target && \"Expected target to be initialized\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6349, __PRETTY_FUNCTION__)); | |||
6350 | const llvm::Triple &T = Target->getTriple(); | |||
6351 | // Windows is LLP64 rather than LP64 | |||
6352 | if (T.isOSWindows() && T.isArch64Bit()) | |||
6353 | return UnsignedLongLongTy; | |||
6354 | return UnsignedLongTy; | |||
6355 | } | |||
6356 | ||||
6357 | CanQualType ASTContext::getNSIntegerType() const { | |||
6358 | assert(Target && "Expected target to be initialized")((Target && "Expected target to be initialized") ? static_cast <void> (0) : __assert_fail ("Target && \"Expected target to be initialized\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6358, __PRETTY_FUNCTION__)); | |||
6359 | const llvm::Triple &T = Target->getTriple(); | |||
6360 | // Windows is LLP64 rather than LP64 | |||
6361 | if (T.isOSWindows() && T.isArch64Bit()) | |||
6362 | return LongLongTy; | |||
6363 | return LongTy; | |||
6364 | } | |||
6365 | ||||
6366 | TypedefDecl *ASTContext::getObjCInstanceTypeDecl() { | |||
6367 | if (!ObjCInstanceTypeDecl) | |||
6368 | ObjCInstanceTypeDecl = | |||
6369 | buildImplicitTypedef(getObjCIdType(), "instancetype"); | |||
6370 | return ObjCInstanceTypeDecl; | |||
6371 | } | |||
6372 | ||||
6373 | // This returns true if a type has been typedefed to BOOL: | |||
6374 | // typedef <type> BOOL; | |||
6375 | static bool isTypeTypedefedAsBOOL(QualType T) { | |||
6376 | if (const auto *TT = dyn_cast<TypedefType>(T)) | |||
6377 | if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) | |||
6378 | return II->isStr("BOOL"); | |||
6379 | ||||
6380 | return false; | |||
6381 | } | |||
6382 | ||||
6383 | /// getObjCEncodingTypeSize returns size of type for objective-c encoding | |||
6384 | /// purpose. | |||
6385 | CharUnits ASTContext::getObjCEncodingTypeSize(QualType type) const { | |||
6386 | if (!type->isIncompleteArrayType() && type->isIncompleteType()) | |||
6387 | return CharUnits::Zero(); | |||
6388 | ||||
6389 | CharUnits sz = getTypeSizeInChars(type); | |||
6390 | ||||
6391 | // Make all integer and enum types at least as large as an int | |||
6392 | if (sz.isPositive() && type->isIntegralOrEnumerationType()) | |||
6393 | sz = std::max(sz, getTypeSizeInChars(IntTy)); | |||
6394 | // Treat arrays as pointers, since that's how they're passed in. | |||
6395 | else if (type->isArrayType()) | |||
6396 | sz = getTypeSizeInChars(VoidPtrTy); | |||
6397 | return sz; | |||
6398 | } | |||
6399 | ||||
6400 | bool ASTContext::isMSStaticDataMemberInlineDefinition(const VarDecl *VD) const { | |||
6401 | return getTargetInfo().getCXXABI().isMicrosoft() && | |||
6402 | VD->isStaticDataMember() && | |||
6403 | VD->getType()->isIntegralOrEnumerationType() && | |||
6404 | !VD->getFirstDecl()->isOutOfLine() && VD->getFirstDecl()->hasInit(); | |||
6405 | } | |||
6406 | ||||
6407 | ASTContext::InlineVariableDefinitionKind | |||
6408 | ASTContext::getInlineVariableDefinitionKind(const VarDecl *VD) const { | |||
6409 | if (!VD->isInline()) | |||
6410 | return InlineVariableDefinitionKind::None; | |||
6411 | ||||
6412 | // In almost all cases, it's a weak definition. | |||
6413 | auto *First = VD->getFirstDecl(); | |||
6414 | if (First->isInlineSpecified() || !First->isStaticDataMember()) | |||
6415 | return InlineVariableDefinitionKind::Weak; | |||
6416 | ||||
6417 | // If there's a file-context declaration in this translation unit, it's a | |||
6418 | // non-discardable definition. | |||
6419 | for (auto *D : VD->redecls()) | |||
6420 | if (D->getLexicalDeclContext()->isFileContext() && | |||
6421 | !D->isInlineSpecified() && (D->isConstexpr() || First->isConstexpr())) | |||
6422 | return InlineVariableDefinitionKind::Strong; | |||
6423 | ||||
6424 | // If we've not seen one yet, we don't know. | |||
6425 | return InlineVariableDefinitionKind::WeakUnknown; | |||
6426 | } | |||
6427 | ||||
6428 | static std::string charUnitsToString(const CharUnits &CU) { | |||
6429 | return llvm::itostr(CU.getQuantity()); | |||
6430 | } | |||
6431 | ||||
6432 | /// getObjCEncodingForBlock - Return the encoded type for this block | |||
6433 | /// declaration. | |||
6434 | std::string ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr) const { | |||
6435 | std::string S; | |||
6436 | ||||
6437 | const BlockDecl *Decl = Expr->getBlockDecl(); | |||
6438 | QualType BlockTy = | |||
6439 | Expr->getType()->castAs<BlockPointerType>()->getPointeeType(); | |||
6440 | QualType BlockReturnTy = BlockTy->castAs<FunctionType>()->getReturnType(); | |||
6441 | // Encode result type. | |||
6442 | if (getLangOpts().EncodeExtendedBlockSig) | |||
6443 | getObjCEncodingForMethodParameter(Decl::OBJC_TQ_None, BlockReturnTy, S, | |||
6444 | true /*Extended*/); | |||
6445 | else | |||
6446 | getObjCEncodingForType(BlockReturnTy, S); | |||
6447 | // Compute size of all parameters. | |||
6448 | // Start with computing size of a pointer in number of bytes. | |||
6449 | // FIXME: There might(should) be a better way of doing this computation! | |||
6450 | CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); | |||
6451 | CharUnits ParmOffset = PtrSize; | |||
6452 | for (auto PI : Decl->parameters()) { | |||
6453 | QualType PType = PI->getType(); | |||
6454 | CharUnits sz = getObjCEncodingTypeSize(PType); | |||
6455 | if (sz.isZero()) | |||
6456 | continue; | |||
6457 | assert(sz.isPositive() && "BlockExpr - Incomplete param type")((sz.isPositive() && "BlockExpr - Incomplete param type" ) ? static_cast<void> (0) : __assert_fail ("sz.isPositive() && \"BlockExpr - Incomplete param type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6457, __PRETTY_FUNCTION__)); | |||
6458 | ParmOffset += sz; | |||
6459 | } | |||
6460 | // Size of the argument frame | |||
6461 | S += charUnitsToString(ParmOffset); | |||
6462 | // Block pointer and offset. | |||
6463 | S += "@?0"; | |||
6464 | ||||
6465 | // Argument types. | |||
6466 | ParmOffset = PtrSize; | |||
6467 | for (auto PVDecl : Decl->parameters()) { | |||
6468 | QualType PType = PVDecl->getOriginalType(); | |||
6469 | if (const auto *AT = | |||
6470 | dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { | |||
6471 | // Use array's original type only if it has known number of | |||
6472 | // elements. | |||
6473 | if (!isa<ConstantArrayType>(AT)) | |||
6474 | PType = PVDecl->getType(); | |||
6475 | } else if (PType->isFunctionType()) | |||
6476 | PType = PVDecl->getType(); | |||
6477 | if (getLangOpts().EncodeExtendedBlockSig) | |||
6478 | getObjCEncodingForMethodParameter(Decl::OBJC_TQ_None, PType, | |||
6479 | S, true /*Extended*/); | |||
6480 | else | |||
6481 | getObjCEncodingForType(PType, S); | |||
6482 | S += charUnitsToString(ParmOffset); | |||
6483 | ParmOffset += getObjCEncodingTypeSize(PType); | |||
6484 | } | |||
6485 | ||||
6486 | return S; | |||
6487 | } | |||
6488 | ||||
6489 | std::string | |||
6490 | ASTContext::getObjCEncodingForFunctionDecl(const FunctionDecl *Decl) const { | |||
6491 | std::string S; | |||
6492 | // Encode result type. | |||
6493 | getObjCEncodingForType(Decl->getReturnType(), S); | |||
6494 | CharUnits ParmOffset; | |||
6495 | // Compute size of all parameters. | |||
6496 | for (auto PI : Decl->parameters()) { | |||
6497 | QualType PType = PI->getType(); | |||
6498 | CharUnits sz = getObjCEncodingTypeSize(PType); | |||
6499 | if (sz.isZero()) | |||
6500 | continue; | |||
6501 | ||||
6502 | assert(sz.isPositive() &&((sz.isPositive() && "getObjCEncodingForFunctionDecl - Incomplete param type" ) ? static_cast<void> (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForFunctionDecl - Incomplete param type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6503, __PRETTY_FUNCTION__)) | |||
6503 | "getObjCEncodingForFunctionDecl - Incomplete param type")((sz.isPositive() && "getObjCEncodingForFunctionDecl - Incomplete param type" ) ? static_cast<void> (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForFunctionDecl - Incomplete param type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6503, __PRETTY_FUNCTION__)); | |||
6504 | ParmOffset += sz; | |||
6505 | } | |||
6506 | S += charUnitsToString(ParmOffset); | |||
6507 | ParmOffset = CharUnits::Zero(); | |||
6508 | ||||
6509 | // Argument types. | |||
6510 | for (auto PVDecl : Decl->parameters()) { | |||
6511 | QualType PType = PVDecl->getOriginalType(); | |||
6512 | if (const auto *AT = | |||
6513 | dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { | |||
6514 | // Use array's original type only if it has known number of | |||
6515 | // elements. | |||
6516 | if (!isa<ConstantArrayType>(AT)) | |||
6517 | PType = PVDecl->getType(); | |||
6518 | } else if (PType->isFunctionType()) | |||
6519 | PType = PVDecl->getType(); | |||
6520 | getObjCEncodingForType(PType, S); | |||
6521 | S += charUnitsToString(ParmOffset); | |||
6522 | ParmOffset += getObjCEncodingTypeSize(PType); | |||
6523 | } | |||
6524 | ||||
6525 | return S; | |||
6526 | } | |||
6527 | ||||
6528 | /// getObjCEncodingForMethodParameter - Return the encoded type for a single | |||
6529 | /// method parameter or return type. If Extended, include class names and | |||
6530 | /// block object types. | |||
6531 | void ASTContext::getObjCEncodingForMethodParameter(Decl::ObjCDeclQualifier QT, | |||
6532 | QualType T, std::string& S, | |||
6533 | bool Extended) const { | |||
6534 | // Encode type qualifer, 'in', 'inout', etc. for the parameter. | |||
6535 | getObjCEncodingForTypeQualifier(QT, S); | |||
6536 | // Encode parameter type. | |||
6537 | ObjCEncOptions Options = ObjCEncOptions() | |||
6538 | .setExpandPointedToStructures() | |||
6539 | .setExpandStructures() | |||
6540 | .setIsOutermostType(); | |||
6541 | if (Extended) | |||
6542 | Options.setEncodeBlockParameters().setEncodeClassNames(); | |||
6543 | getObjCEncodingForTypeImpl(T, S, Options, /*Field=*/nullptr); | |||
6544 | } | |||
6545 | ||||
6546 | /// getObjCEncodingForMethodDecl - Return the encoded type for this method | |||
6547 | /// declaration. | |||
6548 | std::string ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, | |||
6549 | bool Extended) const { | |||
6550 | // FIXME: This is not very efficient. | |||
6551 | // Encode return type. | |||
6552 | std::string S; | |||
6553 | getObjCEncodingForMethodParameter(Decl->getObjCDeclQualifier(), | |||
6554 | Decl->getReturnType(), S, Extended); | |||
6555 | // Compute size of all parameters. | |||
6556 | // Start with computing size of a pointer in number of bytes. | |||
6557 | // FIXME: There might(should) be a better way of doing this computation! | |||
6558 | CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); | |||
6559 | // The first two arguments (self and _cmd) are pointers; account for | |||
6560 | // their size. | |||
6561 | CharUnits ParmOffset = 2 * PtrSize; | |||
6562 | for (ObjCMethodDecl::param_const_iterator PI = Decl->param_begin(), | |||
6563 | E = Decl->sel_param_end(); PI != E; ++PI) { | |||
6564 | QualType PType = (*PI)->getType(); | |||
6565 | CharUnits sz = getObjCEncodingTypeSize(PType); | |||
6566 | if (sz.isZero()) | |||
6567 | continue; | |||
6568 | ||||
6569 | assert(sz.isPositive() &&((sz.isPositive() && "getObjCEncodingForMethodDecl - Incomplete param type" ) ? static_cast<void> (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForMethodDecl - Incomplete param type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6570, __PRETTY_FUNCTION__)) | |||
6570 | "getObjCEncodingForMethodDecl - Incomplete param type")((sz.isPositive() && "getObjCEncodingForMethodDecl - Incomplete param type" ) ? static_cast<void> (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForMethodDecl - Incomplete param type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6570, __PRETTY_FUNCTION__)); | |||
6571 | ParmOffset += sz; | |||
6572 | } | |||
6573 | S += charUnitsToString(ParmOffset); | |||
6574 | S += "@0:"; | |||
6575 | S += charUnitsToString(PtrSize); | |||
6576 | ||||
6577 | // Argument types. | |||
6578 | ParmOffset = 2 * PtrSize; | |||
6579 | for (ObjCMethodDecl::param_const_iterator PI = Decl->param_begin(), | |||
6580 | E = Decl->sel_param_end(); PI != E; ++PI) { | |||
6581 | const ParmVarDecl *PVDecl = *PI; | |||
6582 | QualType PType = PVDecl->getOriginalType(); | |||
6583 | if (const auto *AT = | |||
6584 | dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { | |||
6585 | // Use array's original type only if it has known number of | |||
6586 | // elements. | |||
6587 | if (!isa<ConstantArrayType>(AT)) | |||
6588 | PType = PVDecl->getType(); | |||
6589 | } else if (PType->isFunctionType()) | |||
6590 | PType = PVDecl->getType(); | |||
6591 | getObjCEncodingForMethodParameter(PVDecl->getObjCDeclQualifier(), | |||
6592 | PType, S, Extended); | |||
6593 | S += charUnitsToString(ParmOffset); | |||
6594 | ParmOffset += getObjCEncodingTypeSize(PType); | |||
6595 | } | |||
6596 | ||||
6597 | return S; | |||
6598 | } | |||
6599 | ||||
6600 | ObjCPropertyImplDecl * | |||
6601 | ASTContext::getObjCPropertyImplDeclForPropertyDecl( | |||
6602 | const ObjCPropertyDecl *PD, | |||
6603 | const Decl *Container) const { | |||
6604 | if (!Container) | |||
6605 | return nullptr; | |||
6606 | if (const auto *CID = dyn_cast<ObjCCategoryImplDecl>(Container)) { | |||
6607 | for (auto *PID : CID->property_impls()) | |||
6608 | if (PID->getPropertyDecl() == PD) | |||
6609 | return PID; | |||
6610 | } else { | |||
6611 | const auto *OID = cast<ObjCImplementationDecl>(Container); | |||
6612 | for (auto *PID : OID->property_impls()) | |||
6613 | if (PID->getPropertyDecl() == PD) | |||
6614 | return PID; | |||
6615 | } | |||
6616 | return nullptr; | |||
6617 | } | |||
6618 | ||||
6619 | /// getObjCEncodingForPropertyDecl - Return the encoded type for this | |||
6620 | /// property declaration. If non-NULL, Container must be either an | |||
6621 | /// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be | |||
6622 | /// NULL when getting encodings for protocol properties. | |||
6623 | /// Property attributes are stored as a comma-delimited C string. The simple | |||
6624 | /// attributes readonly and bycopy are encoded as single characters. The | |||
6625 | /// parametrized attributes, getter=name, setter=name, and ivar=name, are | |||
6626 | /// encoded as single characters, followed by an identifier. Property types | |||
6627 | /// are also encoded as a parametrized attribute. The characters used to encode | |||
6628 | /// these attributes are defined by the following enumeration: | |||
6629 | /// @code | |||
6630 | /// enum PropertyAttributes { | |||
6631 | /// kPropertyReadOnly = 'R', // property is read-only. | |||
6632 | /// kPropertyBycopy = 'C', // property is a copy of the value last assigned | |||
6633 | /// kPropertyByref = '&', // property is a reference to the value last assigned | |||
6634 | /// kPropertyDynamic = 'D', // property is dynamic | |||
6635 | /// kPropertyGetter = 'G', // followed by getter selector name | |||
6636 | /// kPropertySetter = 'S', // followed by setter selector name | |||
6637 | /// kPropertyInstanceVariable = 'V' // followed by instance variable name | |||
6638 | /// kPropertyType = 'T' // followed by old-style type encoding. | |||
6639 | /// kPropertyWeak = 'W' // 'weak' property | |||
6640 | /// kPropertyStrong = 'P' // property GC'able | |||
6641 | /// kPropertyNonAtomic = 'N' // property non-atomic | |||
6642 | /// }; | |||
6643 | /// @endcode | |||
6644 | std::string | |||
6645 | ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, | |||
6646 | const Decl *Container) const { | |||
6647 | // Collect information from the property implementation decl(s). | |||
6648 | bool Dynamic = false; | |||
6649 | ObjCPropertyImplDecl *SynthesizePID = nullptr; | |||
6650 | ||||
6651 | if (ObjCPropertyImplDecl *PropertyImpDecl = | |||
6652 | getObjCPropertyImplDeclForPropertyDecl(PD, Container)) { | |||
6653 | if (PropertyImpDecl->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic) | |||
6654 | Dynamic = true; | |||
6655 | else | |||
6656 | SynthesizePID = PropertyImpDecl; | |||
6657 | } | |||
6658 | ||||
6659 | // FIXME: This is not very efficient. | |||
6660 | std::string S = "T"; | |||
6661 | ||||
6662 | // Encode result type. | |||
6663 | // GCC has some special rules regarding encoding of properties which | |||
6664 | // closely resembles encoding of ivars. | |||
6665 | getObjCEncodingForPropertyType(PD->getType(), S); | |||
6666 | ||||
6667 | if (PD->isReadOnly()) { | |||
6668 | S += ",R"; | |||
6669 | if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_copy) | |||
6670 | S += ",C"; | |||
6671 | if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_retain) | |||
6672 | S += ",&"; | |||
6673 | if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_weak) | |||
6674 | S += ",W"; | |||
6675 | } else { | |||
6676 | switch (PD->getSetterKind()) { | |||
6677 | case ObjCPropertyDecl::Assign: break; | |||
6678 | case ObjCPropertyDecl::Copy: S += ",C"; break; | |||
6679 | case ObjCPropertyDecl::Retain: S += ",&"; break; | |||
6680 | case ObjCPropertyDecl::Weak: S += ",W"; break; | |||
6681 | } | |||
6682 | } | |||
6683 | ||||
6684 | // It really isn't clear at all what this means, since properties | |||
6685 | // are "dynamic by default". | |||
6686 | if (Dynamic) | |||
6687 | S += ",D"; | |||
6688 | ||||
6689 | if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) | |||
6690 | S += ",N"; | |||
6691 | ||||
6692 | if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { | |||
6693 | S += ",G"; | |||
6694 | S += PD->getGetterName().getAsString(); | |||
6695 | } | |||
6696 | ||||
6697 | if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { | |||
6698 | S += ",S"; | |||
6699 | S += PD->getSetterName().getAsString(); | |||
6700 | } | |||
6701 | ||||
6702 | if (SynthesizePID) { | |||
6703 | const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); | |||
6704 | S += ",V"; | |||
6705 | S += OID->getNameAsString(); | |||
6706 | } | |||
6707 | ||||
6708 | // FIXME: OBJCGC: weak & strong | |||
6709 | return S; | |||
6710 | } | |||
6711 | ||||
6712 | /// getLegacyIntegralTypeEncoding - | |||
6713 | /// Another legacy compatibility encoding: 32-bit longs are encoded as | |||
6714 | /// 'l' or 'L' , but not always. For typedefs, we need to use | |||
6715 | /// 'i' or 'I' instead if encoding a struct field, or a pointer! | |||
6716 | void ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { | |||
6717 | if (isa<TypedefType>(PointeeTy.getTypePtr())) { | |||
6718 | if (const auto *BT = PointeeTy->getAs<BuiltinType>()) { | |||
6719 | if (BT->getKind() == BuiltinType::ULong && getIntWidth(PointeeTy) == 32) | |||
6720 | PointeeTy = UnsignedIntTy; | |||
6721 | else | |||
6722 | if (BT->getKind() == BuiltinType::Long && getIntWidth(PointeeTy) == 32) | |||
6723 | PointeeTy = IntTy; | |||
6724 | } | |||
6725 | } | |||
6726 | } | |||
6727 | ||||
6728 | void ASTContext::getObjCEncodingForType(QualType T, std::string& S, | |||
6729 | const FieldDecl *Field, | |||
6730 | QualType *NotEncodedT) const { | |||
6731 | // We follow the behavior of gcc, expanding structures which are | |||
6732 | // directly pointed to, and expanding embedded structures. Note that | |||
6733 | // these rules are sufficient to prevent recursive encoding of the | |||
6734 | // same type. | |||
6735 | getObjCEncodingForTypeImpl(T, S, | |||
6736 | ObjCEncOptions() | |||
6737 | .setExpandPointedToStructures() | |||
6738 | .setExpandStructures() | |||
6739 | .setIsOutermostType(), | |||
6740 | Field, NotEncodedT); | |||
6741 | } | |||
6742 | ||||
6743 | void ASTContext::getObjCEncodingForPropertyType(QualType T, | |||
6744 | std::string& S) const { | |||
6745 | // Encode result type. | |||
6746 | // GCC has some special rules regarding encoding of properties which | |||
6747 | // closely resembles encoding of ivars. | |||
6748 | getObjCEncodingForTypeImpl(T, S, | |||
6749 | ObjCEncOptions() | |||
6750 | .setExpandPointedToStructures() | |||
6751 | .setExpandStructures() | |||
6752 | .setIsOutermostType() | |||
6753 | .setEncodingProperty(), | |||
6754 | /*Field=*/nullptr); | |||
6755 | } | |||
6756 | ||||
6757 | static char getObjCEncodingForPrimitiveType(const ASTContext *C, | |||
6758 | const BuiltinType *BT) { | |||
6759 | BuiltinType::Kind kind = BT->getKind(); | |||
6760 | switch (kind) { | |||
6761 | case BuiltinType::Void: return 'v'; | |||
6762 | case BuiltinType::Bool: return 'B'; | |||
6763 | case BuiltinType::Char8: | |||
6764 | case BuiltinType::Char_U: | |||
6765 | case BuiltinType::UChar: return 'C'; | |||
6766 | case BuiltinType::Char16: | |||
6767 | case BuiltinType::UShort: return 'S'; | |||
6768 | case BuiltinType::Char32: | |||
6769 | case BuiltinType::UInt: return 'I'; | |||
6770 | case BuiltinType::ULong: | |||
6771 | return C->getTargetInfo().getLongWidth() == 32 ? 'L' : 'Q'; | |||
6772 | case BuiltinType::UInt128: return 'T'; | |||
6773 | case BuiltinType::ULongLong: return 'Q'; | |||
6774 | case BuiltinType::Char_S: | |||
6775 | case BuiltinType::SChar: return 'c'; | |||
6776 | case BuiltinType::Short: return 's'; | |||
6777 | case BuiltinType::WChar_S: | |||
6778 | case BuiltinType::WChar_U: | |||
6779 | case BuiltinType::Int: return 'i'; | |||
6780 | case BuiltinType::Long: | |||
6781 | return C->getTargetInfo().getLongWidth() == 32 ? 'l' : 'q'; | |||
6782 | case BuiltinType::LongLong: return 'q'; | |||
6783 | case BuiltinType::Int128: return 't'; | |||
6784 | case BuiltinType::Float: return 'f'; | |||
6785 | case BuiltinType::Double: return 'd'; | |||
6786 | case BuiltinType::LongDouble: return 'D'; | |||
6787 | case BuiltinType::NullPtr: return '*'; // like char* | |||
6788 | ||||
6789 | case BuiltinType::Float16: | |||
6790 | case BuiltinType::Float128: | |||
6791 | case BuiltinType::Half: | |||
6792 | case BuiltinType::ShortAccum: | |||
6793 | case BuiltinType::Accum: | |||
6794 | case BuiltinType::LongAccum: | |||
6795 | case BuiltinType::UShortAccum: | |||
6796 | case BuiltinType::UAccum: | |||
6797 | case BuiltinType::ULongAccum: | |||
6798 | case BuiltinType::ShortFract: | |||
6799 | case BuiltinType::Fract: | |||
6800 | case BuiltinType::LongFract: | |||
6801 | case BuiltinType::UShortFract: | |||
6802 | case BuiltinType::UFract: | |||
6803 | case BuiltinType::ULongFract: | |||
6804 | case BuiltinType::SatShortAccum: | |||
6805 | case BuiltinType::SatAccum: | |||
6806 | case BuiltinType::SatLongAccum: | |||
6807 | case BuiltinType::SatUShortAccum: | |||
6808 | case BuiltinType::SatUAccum: | |||
6809 | case BuiltinType::SatULongAccum: | |||
6810 | case BuiltinType::SatShortFract: | |||
6811 | case BuiltinType::SatFract: | |||
6812 | case BuiltinType::SatLongFract: | |||
6813 | case BuiltinType::SatUShortFract: | |||
6814 | case BuiltinType::SatUFract: | |||
6815 | case BuiltinType::SatULongFract: | |||
6816 | // FIXME: potentially need @encodes for these! | |||
6817 | return ' '; | |||
6818 | ||||
6819 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
6820 | case BuiltinType::Id: | |||
6821 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
6822 | { | |||
6823 | DiagnosticsEngine &Diags = C->getDiagnostics(); | |||
6824 | unsigned DiagID = Diags.getCustomDiagID( | |||
6825 | DiagnosticsEngine::Error, "cannot yet @encode type %0"); | |||
6826 | Diags.Report(DiagID) << BT->getName(C->getPrintingPolicy()); | |||
6827 | return ' '; | |||
6828 | } | |||
6829 | ||||
6830 | case BuiltinType::ObjCId: | |||
6831 | case BuiltinType::ObjCClass: | |||
6832 | case BuiltinType::ObjCSel: | |||
6833 | llvm_unreachable("@encoding ObjC primitive type")::llvm::llvm_unreachable_internal("@encoding ObjC primitive type" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6833); | |||
6834 | ||||
6835 | // OpenCL and placeholder types don't need @encodings. | |||
6836 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
6837 | case BuiltinType::Id: | |||
6838 | #include "clang/Basic/OpenCLImageTypes.def" | |||
6839 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
6840 | case BuiltinType::Id: | |||
6841 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
6842 | case BuiltinType::OCLEvent: | |||
6843 | case BuiltinType::OCLClkEvent: | |||
6844 | case BuiltinType::OCLQueue: | |||
6845 | case BuiltinType::OCLReserveID: | |||
6846 | case BuiltinType::OCLSampler: | |||
6847 | case BuiltinType::Dependent: | |||
6848 | #define BUILTIN_TYPE(KIND, ID) | |||
6849 | #define PLACEHOLDER_TYPE(KIND, ID) \ | |||
6850 | case BuiltinType::KIND: | |||
6851 | #include "clang/AST/BuiltinTypes.def" | |||
6852 | llvm_unreachable("invalid builtin type for @encode")::llvm::llvm_unreachable_internal("invalid builtin type for @encode" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6852); | |||
6853 | } | |||
6854 | llvm_unreachable("invalid BuiltinType::Kind value")::llvm::llvm_unreachable_internal("invalid BuiltinType::Kind value" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6854); | |||
6855 | } | |||
6856 | ||||
6857 | static char ObjCEncodingForEnumType(const ASTContext *C, const EnumType *ET) { | |||
6858 | EnumDecl *Enum = ET->getDecl(); | |||
6859 | ||||
6860 | // The encoding of an non-fixed enum type is always 'i', regardless of size. | |||
6861 | if (!Enum->isFixed()) | |||
6862 | return 'i'; | |||
6863 | ||||
6864 | // The encoding of a fixed enum type matches its fixed underlying type. | |||
6865 | const auto *BT = Enum->getIntegerType()->castAs<BuiltinType>(); | |||
6866 | return getObjCEncodingForPrimitiveType(C, BT); | |||
6867 | } | |||
6868 | ||||
6869 | static void EncodeBitField(const ASTContext *Ctx, std::string& S, | |||
6870 | QualType T, const FieldDecl *FD) { | |||
6871 | assert(FD->isBitField() && "not a bitfield - getObjCEncodingForTypeImpl")((FD->isBitField() && "not a bitfield - getObjCEncodingForTypeImpl" ) ? static_cast<void> (0) : __assert_fail ("FD->isBitField() && \"not a bitfield - getObjCEncodingForTypeImpl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 6871, __PRETTY_FUNCTION__)); | |||
6872 | S += 'b'; | |||
6873 | // The NeXT runtime encodes bit fields as b followed by the number of bits. | |||
6874 | // The GNU runtime requires more information; bitfields are encoded as b, | |||
6875 | // then the offset (in bits) of the first element, then the type of the | |||
6876 | // bitfield, then the size in bits. For example, in this structure: | |||
6877 | // | |||
6878 | // struct | |||
6879 | // { | |||
6880 | // int integer; | |||
6881 | // int flags:2; | |||
6882 | // }; | |||
6883 | // On a 32-bit system, the encoding for flags would be b2 for the NeXT | |||
6884 | // runtime, but b32i2 for the GNU runtime. The reason for this extra | |||
6885 | // information is not especially sensible, but we're stuck with it for | |||
6886 | // compatibility with GCC, although providing it breaks anything that | |||
6887 | // actually uses runtime introspection and wants to work on both runtimes... | |||
6888 | if (Ctx->getLangOpts().ObjCRuntime.isGNUFamily()) { | |||
6889 | uint64_t Offset; | |||
6890 | ||||
6891 | if (const auto *IVD = dyn_cast<ObjCIvarDecl>(FD)) { | |||
6892 | Offset = Ctx->lookupFieldBitOffset(IVD->getContainingInterface(), nullptr, | |||
6893 | IVD); | |||
6894 | } else { | |||
6895 | const RecordDecl *RD = FD->getParent(); | |||
6896 | const ASTRecordLayout &RL = Ctx->getASTRecordLayout(RD); | |||
6897 | Offset = RL.getFieldOffset(FD->getFieldIndex()); | |||
6898 | } | |||
6899 | ||||
6900 | S += llvm::utostr(Offset); | |||
6901 | ||||
6902 | if (const auto *ET = T->getAs<EnumType>()) | |||
6903 | S += ObjCEncodingForEnumType(Ctx, ET); | |||
6904 | else { | |||
6905 | const auto *BT = T->castAs<BuiltinType>(); | |||
6906 | S += getObjCEncodingForPrimitiveType(Ctx, BT); | |||
6907 | } | |||
6908 | } | |||
6909 | S += llvm::utostr(FD->getBitWidthValue(*Ctx)); | |||
6910 | } | |||
6911 | ||||
6912 | // FIXME: Use SmallString for accumulating string. | |||
6913 | void ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string &S, | |||
6914 | const ObjCEncOptions Options, | |||
6915 | const FieldDecl *FD, | |||
6916 | QualType *NotEncodedT) const { | |||
6917 | CanQualType CT = getCanonicalType(T); | |||
6918 | switch (CT->getTypeClass()) { | |||
6919 | case Type::Builtin: | |||
6920 | case Type::Enum: | |||
6921 | if (FD && FD->isBitField()) | |||
6922 | return EncodeBitField(this, S, T, FD); | |||
6923 | if (const auto *BT = dyn_cast<BuiltinType>(CT)) | |||
6924 | S += getObjCEncodingForPrimitiveType(this, BT); | |||
6925 | else | |||
6926 | S += ObjCEncodingForEnumType(this, cast<EnumType>(CT)); | |||
6927 | return; | |||
6928 | ||||
6929 | case Type::Complex: | |||
6930 | S += 'j'; | |||
6931 | getObjCEncodingForTypeImpl(T->castAs<ComplexType>()->getElementType(), S, | |||
6932 | ObjCEncOptions(), | |||
6933 | /*Field=*/nullptr); | |||
6934 | return; | |||
6935 | ||||
6936 | case Type::Atomic: | |||
6937 | S += 'A'; | |||
6938 | getObjCEncodingForTypeImpl(T->castAs<AtomicType>()->getValueType(), S, | |||
6939 | ObjCEncOptions(), | |||
6940 | /*Field=*/nullptr); | |||
6941 | return; | |||
6942 | ||||
6943 | // encoding for pointer or reference types. | |||
6944 | case Type::Pointer: | |||
6945 | case Type::LValueReference: | |||
6946 | case Type::RValueReference: { | |||
6947 | QualType PointeeTy; | |||
6948 | if (isa<PointerType>(CT)) { | |||
6949 | const auto *PT = T->castAs<PointerType>(); | |||
6950 | if (PT->isObjCSelType()) { | |||
6951 | S += ':'; | |||
6952 | return; | |||
6953 | } | |||
6954 | PointeeTy = PT->getPointeeType(); | |||
6955 | } else { | |||
6956 | PointeeTy = T->castAs<ReferenceType>()->getPointeeType(); | |||
6957 | } | |||
6958 | ||||
6959 | bool isReadOnly = false; | |||
6960 | // For historical/compatibility reasons, the read-only qualifier of the | |||
6961 | // pointee gets emitted _before_ the '^'. The read-only qualifier of | |||
6962 | // the pointer itself gets ignored, _unless_ we are looking at a typedef! | |||
6963 | // Also, do not emit the 'r' for anything but the outermost type! | |||
6964 | if (isa<TypedefType>(T.getTypePtr())) { | |||
6965 | if (Options.IsOutermostType() && T.isConstQualified()) { | |||
6966 | isReadOnly = true; | |||
6967 | S += 'r'; | |||
6968 | } | |||
6969 | } else if (Options.IsOutermostType()) { | |||
6970 | QualType P = PointeeTy; | |||
6971 | while (auto PT = P->getAs<PointerType>()) | |||
6972 | P = PT->getPointeeType(); | |||
6973 | if (P.isConstQualified()) { | |||
6974 | isReadOnly = true; | |||
6975 | S += 'r'; | |||
6976 | } | |||
6977 | } | |||
6978 | if (isReadOnly) { | |||
6979 | // Another legacy compatibility encoding. Some ObjC qualifier and type | |||
6980 | // combinations need to be rearranged. | |||
6981 | // Rewrite "in const" from "nr" to "rn" | |||
6982 | if (StringRef(S).endswith("nr")) | |||
6983 | S.replace(S.end()-2, S.end(), "rn"); | |||
6984 | } | |||
6985 | ||||
6986 | if (PointeeTy->isCharType()) { | |||
6987 | // char pointer types should be encoded as '*' unless it is a | |||
6988 | // type that has been typedef'd to 'BOOL'. | |||
6989 | if (!isTypeTypedefedAsBOOL(PointeeTy)) { | |||
6990 | S += '*'; | |||
6991 | return; | |||
6992 | } | |||
6993 | } else if (const auto *RTy = PointeeTy->getAs<RecordType>()) { | |||
6994 | // GCC binary compat: Need to convert "struct objc_class *" to "#". | |||
6995 | if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { | |||
6996 | S += '#'; | |||
6997 | return; | |||
6998 | } | |||
6999 | // GCC binary compat: Need to convert "struct objc_object *" to "@". | |||
7000 | if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { | |||
7001 | S += '@'; | |||
7002 | return; | |||
7003 | } | |||
7004 | // fall through... | |||
7005 | } | |||
7006 | S += '^'; | |||
7007 | getLegacyIntegralTypeEncoding(PointeeTy); | |||
7008 | ||||
7009 | ObjCEncOptions NewOptions; | |||
7010 | if (Options.ExpandPointedToStructures()) | |||
7011 | NewOptions.setExpandStructures(); | |||
7012 | getObjCEncodingForTypeImpl(PointeeTy, S, NewOptions, | |||
7013 | /*Field=*/nullptr, NotEncodedT); | |||
7014 | return; | |||
7015 | } | |||
7016 | ||||
7017 | case Type::ConstantArray: | |||
7018 | case Type::IncompleteArray: | |||
7019 | case Type::VariableArray: { | |||
7020 | const auto *AT = cast<ArrayType>(CT); | |||
7021 | ||||
7022 | if (isa<IncompleteArrayType>(AT) && !Options.IsStructField()) { | |||
7023 | // Incomplete arrays are encoded as a pointer to the array element. | |||
7024 | S += '^'; | |||
7025 | ||||
7026 | getObjCEncodingForTypeImpl( | |||
7027 | AT->getElementType(), S, | |||
7028 | Options.keepingOnly(ObjCEncOptions().setExpandStructures()), FD); | |||
7029 | } else { | |||
7030 | S += '['; | |||
7031 | ||||
7032 | if (const auto *CAT = dyn_cast<ConstantArrayType>(AT)) | |||
7033 | S += llvm::utostr(CAT->getSize().getZExtValue()); | |||
7034 | else { | |||
7035 | //Variable length arrays are encoded as a regular array with 0 elements. | |||
7036 | assert((isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) &&(((isa<VariableArrayType>(AT) || isa<IncompleteArrayType >(AT)) && "Unknown array type!") ? static_cast< void> (0) : __assert_fail ("(isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) && \"Unknown array type!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7037, __PRETTY_FUNCTION__)) | |||
7037 | "Unknown array type!")(((isa<VariableArrayType>(AT) || isa<IncompleteArrayType >(AT)) && "Unknown array type!") ? static_cast< void> (0) : __assert_fail ("(isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) && \"Unknown array type!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7037, __PRETTY_FUNCTION__)); | |||
7038 | S += '0'; | |||
7039 | } | |||
7040 | ||||
7041 | getObjCEncodingForTypeImpl( | |||
7042 | AT->getElementType(), S, | |||
7043 | Options.keepingOnly(ObjCEncOptions().setExpandStructures()), FD, | |||
7044 | NotEncodedT); | |||
7045 | S += ']'; | |||
7046 | } | |||
7047 | return; | |||
7048 | } | |||
7049 | ||||
7050 | case Type::FunctionNoProto: | |||
7051 | case Type::FunctionProto: | |||
7052 | S += '?'; | |||
7053 | return; | |||
7054 | ||||
7055 | case Type::Record: { | |||
7056 | RecordDecl *RDecl = cast<RecordType>(CT)->getDecl(); | |||
7057 | S += RDecl->isUnion() ? '(' : '{'; | |||
7058 | // Anonymous structures print as '?' | |||
7059 | if (const IdentifierInfo *II = RDecl->getIdentifier()) { | |||
7060 | S += II->getName(); | |||
7061 | if (const auto *Spec = dyn_cast<ClassTemplateSpecializationDecl>(RDecl)) { | |||
7062 | const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); | |||
7063 | llvm::raw_string_ostream OS(S); | |||
7064 | printTemplateArgumentList(OS, TemplateArgs.asArray(), | |||
7065 | getPrintingPolicy()); | |||
7066 | } | |||
7067 | } else { | |||
7068 | S += '?'; | |||
7069 | } | |||
7070 | if (Options.ExpandStructures()) { | |||
7071 | S += '='; | |||
7072 | if (!RDecl->isUnion()) { | |||
7073 | getObjCEncodingForStructureImpl(RDecl, S, FD, true, NotEncodedT); | |||
7074 | } else { | |||
7075 | for (const auto *Field : RDecl->fields()) { | |||
7076 | if (FD) { | |||
7077 | S += '"'; | |||
7078 | S += Field->getNameAsString(); | |||
7079 | S += '"'; | |||
7080 | } | |||
7081 | ||||
7082 | // Special case bit-fields. | |||
7083 | if (Field->isBitField()) { | |||
7084 | getObjCEncodingForTypeImpl(Field->getType(), S, | |||
7085 | ObjCEncOptions().setExpandStructures(), | |||
7086 | Field); | |||
7087 | } else { | |||
7088 | QualType qt = Field->getType(); | |||
7089 | getLegacyIntegralTypeEncoding(qt); | |||
7090 | getObjCEncodingForTypeImpl( | |||
7091 | qt, S, | |||
7092 | ObjCEncOptions().setExpandStructures().setIsStructField(), FD, | |||
7093 | NotEncodedT); | |||
7094 | } | |||
7095 | } | |||
7096 | } | |||
7097 | } | |||
7098 | S += RDecl->isUnion() ? ')' : '}'; | |||
7099 | return; | |||
7100 | } | |||
7101 | ||||
7102 | case Type::BlockPointer: { | |||
7103 | const auto *BT = T->castAs<BlockPointerType>(); | |||
7104 | S += "@?"; // Unlike a pointer-to-function, which is "^?". | |||
7105 | if (Options.EncodeBlockParameters()) { | |||
7106 | const auto *FT = BT->getPointeeType()->castAs<FunctionType>(); | |||
7107 | ||||
7108 | S += '<'; | |||
7109 | // Block return type | |||
7110 | getObjCEncodingForTypeImpl(FT->getReturnType(), S, | |||
7111 | Options.forComponentType(), FD, NotEncodedT); | |||
7112 | // Block self | |||
7113 | S += "@?"; | |||
7114 | // Block parameters | |||
7115 | if (const auto *FPT = dyn_cast<FunctionProtoType>(FT)) { | |||
7116 | for (const auto &I : FPT->param_types()) | |||
7117 | getObjCEncodingForTypeImpl(I, S, Options.forComponentType(), FD, | |||
7118 | NotEncodedT); | |||
7119 | } | |||
7120 | S += '>'; | |||
7121 | } | |||
7122 | return; | |||
7123 | } | |||
7124 | ||||
7125 | case Type::ObjCObject: { | |||
7126 | // hack to match legacy encoding of *id and *Class | |||
7127 | QualType Ty = getObjCObjectPointerType(CT); | |||
7128 | if (Ty->isObjCIdType()) { | |||
7129 | S += "{objc_object=}"; | |||
7130 | return; | |||
7131 | } | |||
7132 | else if (Ty->isObjCClassType()) { | |||
7133 | S += "{objc_class=}"; | |||
7134 | return; | |||
7135 | } | |||
7136 | // TODO: Double check to make sure this intentionally falls through. | |||
7137 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
7138 | } | |||
7139 | ||||
7140 | case Type::ObjCInterface: { | |||
7141 | // Ignore protocol qualifiers when mangling at this level. | |||
7142 | // @encode(class_name) | |||
7143 | ObjCInterfaceDecl *OI = T->castAs<ObjCObjectType>()->getInterface(); | |||
7144 | S += '{'; | |||
7145 | S += OI->getObjCRuntimeNameAsString(); | |||
7146 | if (Options.ExpandStructures()) { | |||
7147 | S += '='; | |||
7148 | SmallVector<const ObjCIvarDecl*, 32> Ivars; | |||
7149 | DeepCollectObjCIvars(OI, true, Ivars); | |||
7150 | for (unsigned i = 0, e = Ivars.size(); i != e; ++i) { | |||
7151 | const FieldDecl *Field = Ivars[i]; | |||
7152 | if (Field->isBitField()) | |||
7153 | getObjCEncodingForTypeImpl(Field->getType(), S, | |||
7154 | ObjCEncOptions().setExpandStructures(), | |||
7155 | Field); | |||
7156 | else | |||
7157 | getObjCEncodingForTypeImpl(Field->getType(), S, | |||
7158 | ObjCEncOptions().setExpandStructures(), FD, | |||
7159 | NotEncodedT); | |||
7160 | } | |||
7161 | } | |||
7162 | S += '}'; | |||
7163 | return; | |||
7164 | } | |||
7165 | ||||
7166 | case Type::ObjCObjectPointer: { | |||
7167 | const auto *OPT = T->castAs<ObjCObjectPointerType>(); | |||
7168 | if (OPT->isObjCIdType()) { | |||
7169 | S += '@'; | |||
7170 | return; | |||
7171 | } | |||
7172 | ||||
7173 | if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { | |||
7174 | // FIXME: Consider if we need to output qualifiers for 'Class<p>'. | |||
7175 | // Since this is a binary compatibility issue, need to consult with | |||
7176 | // runtime folks. Fortunately, this is a *very* obscure construct. | |||
7177 | S += '#'; | |||
7178 | return; | |||
7179 | } | |||
7180 | ||||
7181 | if (OPT->isObjCQualifiedIdType()) { | |||
7182 | getObjCEncodingForTypeImpl( | |||
7183 | getObjCIdType(), S, | |||
7184 | Options.keepingOnly(ObjCEncOptions() | |||
7185 | .setExpandPointedToStructures() | |||
7186 | .setExpandStructures()), | |||
7187 | FD); | |||
7188 | if (FD || Options.EncodingProperty() || Options.EncodeClassNames()) { | |||
7189 | // Note that we do extended encoding of protocol qualifer list | |||
7190 | // Only when doing ivar or property encoding. | |||
7191 | S += '"'; | |||
7192 | for (const auto *I : OPT->quals()) { | |||
7193 | S += '<'; | |||
7194 | S += I->getObjCRuntimeNameAsString(); | |||
7195 | S += '>'; | |||
7196 | } | |||
7197 | S += '"'; | |||
7198 | } | |||
7199 | return; | |||
7200 | } | |||
7201 | ||||
7202 | S += '@'; | |||
7203 | if (OPT->getInterfaceDecl() && | |||
7204 | (FD || Options.EncodingProperty() || Options.EncodeClassNames())) { | |||
7205 | S += '"'; | |||
7206 | S += OPT->getInterfaceDecl()->getObjCRuntimeNameAsString(); | |||
7207 | for (const auto *I : OPT->quals()) { | |||
7208 | S += '<'; | |||
7209 | S += I->getObjCRuntimeNameAsString(); | |||
7210 | S += '>'; | |||
7211 | } | |||
7212 | S += '"'; | |||
7213 | } | |||
7214 | return; | |||
7215 | } | |||
7216 | ||||
7217 | // gcc just blithely ignores member pointers. | |||
7218 | // FIXME: we should do better than that. 'M' is available. | |||
7219 | case Type::MemberPointer: | |||
7220 | // This matches gcc's encoding, even though technically it is insufficient. | |||
7221 | //FIXME. We should do a better job than gcc. | |||
7222 | case Type::Vector: | |||
7223 | case Type::ExtVector: | |||
7224 | // Until we have a coherent encoding of these three types, issue warning. | |||
7225 | if (NotEncodedT) | |||
7226 | *NotEncodedT = T; | |||
7227 | return; | |||
7228 | ||||
7229 | // We could see an undeduced auto type here during error recovery. | |||
7230 | // Just ignore it. | |||
7231 | case Type::Auto: | |||
7232 | case Type::DeducedTemplateSpecialization: | |||
7233 | return; | |||
7234 | ||||
7235 | case Type::Pipe: | |||
7236 | #define ABSTRACT_TYPE(KIND, BASE) | |||
7237 | #define TYPE(KIND, BASE) | |||
7238 | #define DEPENDENT_TYPE(KIND, BASE) \ | |||
7239 | case Type::KIND: | |||
7240 | #define NON_CANONICAL_TYPE(KIND, BASE) \ | |||
7241 | case Type::KIND: | |||
7242 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(KIND, BASE) \ | |||
7243 | case Type::KIND: | |||
7244 | #include "clang/AST/TypeNodes.inc" | |||
7245 | llvm_unreachable("@encode for dependent type!")::llvm::llvm_unreachable_internal("@encode for dependent type!" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7245); | |||
7246 | } | |||
7247 | llvm_unreachable("bad type kind!")::llvm::llvm_unreachable_internal("bad type kind!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7247); | |||
7248 | } | |||
7249 | ||||
7250 | void ASTContext::getObjCEncodingForStructureImpl(RecordDecl *RDecl, | |||
7251 | std::string &S, | |||
7252 | const FieldDecl *FD, | |||
7253 | bool includeVBases, | |||
7254 | QualType *NotEncodedT) const { | |||
7255 | assert(RDecl && "Expected non-null RecordDecl")((RDecl && "Expected non-null RecordDecl") ? static_cast <void> (0) : __assert_fail ("RDecl && \"Expected non-null RecordDecl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7255, __PRETTY_FUNCTION__)); | |||
7256 | assert(!RDecl->isUnion() && "Should not be called for unions")((!RDecl->isUnion() && "Should not be called for unions" ) ? static_cast<void> (0) : __assert_fail ("!RDecl->isUnion() && \"Should not be called for unions\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7256, __PRETTY_FUNCTION__)); | |||
7257 | if (!RDecl->getDefinition() || RDecl->getDefinition()->isInvalidDecl()) | |||
7258 | return; | |||
7259 | ||||
7260 | const auto *CXXRec = dyn_cast<CXXRecordDecl>(RDecl); | |||
7261 | std::multimap<uint64_t, NamedDecl *> FieldOrBaseOffsets; | |||
7262 | const ASTRecordLayout &layout = getASTRecordLayout(RDecl); | |||
7263 | ||||
7264 | if (CXXRec) { | |||
7265 | for (const auto &BI : CXXRec->bases()) { | |||
7266 | if (!BI.isVirtual()) { | |||
7267 | CXXRecordDecl *base = BI.getType()->getAsCXXRecordDecl(); | |||
7268 | if (base->isEmpty()) | |||
7269 | continue; | |||
7270 | uint64_t offs = toBits(layout.getBaseClassOffset(base)); | |||
7271 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.upper_bound(offs), | |||
7272 | std::make_pair(offs, base)); | |||
7273 | } | |||
7274 | } | |||
7275 | } | |||
7276 | ||||
7277 | unsigned i = 0; | |||
7278 | for (auto *Field : RDecl->fields()) { | |||
7279 | uint64_t offs = layout.getFieldOffset(i); | |||
7280 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.upper_bound(offs), | |||
7281 | std::make_pair(offs, Field)); | |||
7282 | ++i; | |||
7283 | } | |||
7284 | ||||
7285 | if (CXXRec && includeVBases) { | |||
7286 | for (const auto &BI : CXXRec->vbases()) { | |||
7287 | CXXRecordDecl *base = BI.getType()->getAsCXXRecordDecl(); | |||
7288 | if (base->isEmpty()) | |||
7289 | continue; | |||
7290 | uint64_t offs = toBits(layout.getVBaseClassOffset(base)); | |||
7291 | if (offs >= uint64_t(toBits(layout.getNonVirtualSize())) && | |||
7292 | FieldOrBaseOffsets.find(offs) == FieldOrBaseOffsets.end()) | |||
7293 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.end(), | |||
7294 | std::make_pair(offs, base)); | |||
7295 | } | |||
7296 | } | |||
7297 | ||||
7298 | CharUnits size; | |||
7299 | if (CXXRec) { | |||
7300 | size = includeVBases ? layout.getSize() : layout.getNonVirtualSize(); | |||
7301 | } else { | |||
7302 | size = layout.getSize(); | |||
7303 | } | |||
7304 | ||||
7305 | #ifndef NDEBUG | |||
7306 | uint64_t CurOffs = 0; | |||
7307 | #endif | |||
7308 | std::multimap<uint64_t, NamedDecl *>::iterator | |||
7309 | CurLayObj = FieldOrBaseOffsets.begin(); | |||
7310 | ||||
7311 | if (CXXRec && CXXRec->isDynamicClass() && | |||
7312 | (CurLayObj == FieldOrBaseOffsets.end() || CurLayObj->first != 0)) { | |||
7313 | if (FD) { | |||
7314 | S += "\"_vptr$"; | |||
7315 | std::string recname = CXXRec->getNameAsString(); | |||
7316 | if (recname.empty()) recname = "?"; | |||
7317 | S += recname; | |||
7318 | S += '"'; | |||
7319 | } | |||
7320 | S += "^^?"; | |||
7321 | #ifndef NDEBUG | |||
7322 | CurOffs += getTypeSize(VoidPtrTy); | |||
7323 | #endif | |||
7324 | } | |||
7325 | ||||
7326 | if (!RDecl->hasFlexibleArrayMember()) { | |||
7327 | // Mark the end of the structure. | |||
7328 | uint64_t offs = toBits(size); | |||
7329 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.upper_bound(offs), | |||
7330 | std::make_pair(offs, nullptr)); | |||
7331 | } | |||
7332 | ||||
7333 | for (; CurLayObj != FieldOrBaseOffsets.end(); ++CurLayObj) { | |||
7334 | #ifndef NDEBUG | |||
7335 | assert(CurOffs <= CurLayObj->first)((CurOffs <= CurLayObj->first) ? static_cast<void> (0) : __assert_fail ("CurOffs <= CurLayObj->first", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7335, __PRETTY_FUNCTION__)); | |||
7336 | if (CurOffs < CurLayObj->first) { | |||
7337 | uint64_t padding = CurLayObj->first - CurOffs; | |||
7338 | // FIXME: There doesn't seem to be a way to indicate in the encoding that | |||
7339 | // packing/alignment of members is different that normal, in which case | |||
7340 | // the encoding will be out-of-sync with the real layout. | |||
7341 | // If the runtime switches to just consider the size of types without | |||
7342 | // taking into account alignment, we could make padding explicit in the | |||
7343 | // encoding (e.g. using arrays of chars). The encoding strings would be | |||
7344 | // longer then though. | |||
7345 | CurOffs += padding; | |||
7346 | } | |||
7347 | #endif | |||
7348 | ||||
7349 | NamedDecl *dcl = CurLayObj->second; | |||
7350 | if (!dcl) | |||
7351 | break; // reached end of structure. | |||
7352 | ||||
7353 | if (auto *base = dyn_cast<CXXRecordDecl>(dcl)) { | |||
7354 | // We expand the bases without their virtual bases since those are going | |||
7355 | // in the initial structure. Note that this differs from gcc which | |||
7356 | // expands virtual bases each time one is encountered in the hierarchy, | |||
7357 | // making the encoding type bigger than it really is. | |||
7358 | getObjCEncodingForStructureImpl(base, S, FD, /*includeVBases*/false, | |||
7359 | NotEncodedT); | |||
7360 | assert(!base->isEmpty())((!base->isEmpty()) ? static_cast<void> (0) : __assert_fail ("!base->isEmpty()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7360, __PRETTY_FUNCTION__)); | |||
7361 | #ifndef NDEBUG | |||
7362 | CurOffs += toBits(getASTRecordLayout(base).getNonVirtualSize()); | |||
7363 | #endif | |||
7364 | } else { | |||
7365 | const auto *field = cast<FieldDecl>(dcl); | |||
7366 | if (FD) { | |||
7367 | S += '"'; | |||
7368 | S += field->getNameAsString(); | |||
7369 | S += '"'; | |||
7370 | } | |||
7371 | ||||
7372 | if (field->isBitField()) { | |||
7373 | EncodeBitField(this, S, field->getType(), field); | |||
7374 | #ifndef NDEBUG | |||
7375 | CurOffs += field->getBitWidthValue(*this); | |||
7376 | #endif | |||
7377 | } else { | |||
7378 | QualType qt = field->getType(); | |||
7379 | getLegacyIntegralTypeEncoding(qt); | |||
7380 | getObjCEncodingForTypeImpl( | |||
7381 | qt, S, ObjCEncOptions().setExpandStructures().setIsStructField(), | |||
7382 | FD, NotEncodedT); | |||
7383 | #ifndef NDEBUG | |||
7384 | CurOffs += getTypeSize(field->getType()); | |||
7385 | #endif | |||
7386 | } | |||
7387 | } | |||
7388 | } | |||
7389 | } | |||
7390 | ||||
7391 | void ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, | |||
7392 | std::string& S) const { | |||
7393 | if (QT & Decl::OBJC_TQ_In) | |||
7394 | S += 'n'; | |||
7395 | if (QT & Decl::OBJC_TQ_Inout) | |||
7396 | S += 'N'; | |||
7397 | if (QT & Decl::OBJC_TQ_Out) | |||
7398 | S += 'o'; | |||
7399 | if (QT & Decl::OBJC_TQ_Bycopy) | |||
7400 | S += 'O'; | |||
7401 | if (QT & Decl::OBJC_TQ_Byref) | |||
7402 | S += 'R'; | |||
7403 | if (QT & Decl::OBJC_TQ_Oneway) | |||
7404 | S += 'V'; | |||
7405 | } | |||
7406 | ||||
7407 | TypedefDecl *ASTContext::getObjCIdDecl() const { | |||
7408 | if (!ObjCIdDecl) { | |||
7409 | QualType T = getObjCObjectType(ObjCBuiltinIdTy, {}, {}); | |||
7410 | T = getObjCObjectPointerType(T); | |||
7411 | ObjCIdDecl = buildImplicitTypedef(T, "id"); | |||
7412 | } | |||
7413 | return ObjCIdDecl; | |||
7414 | } | |||
7415 | ||||
7416 | TypedefDecl *ASTContext::getObjCSelDecl() const { | |||
7417 | if (!ObjCSelDecl) { | |||
7418 | QualType T = getPointerType(ObjCBuiltinSelTy); | |||
7419 | ObjCSelDecl = buildImplicitTypedef(T, "SEL"); | |||
7420 | } | |||
7421 | return ObjCSelDecl; | |||
7422 | } | |||
7423 | ||||
7424 | TypedefDecl *ASTContext::getObjCClassDecl() const { | |||
7425 | if (!ObjCClassDecl) { | |||
7426 | QualType T = getObjCObjectType(ObjCBuiltinClassTy, {}, {}); | |||
7427 | T = getObjCObjectPointerType(T); | |||
7428 | ObjCClassDecl = buildImplicitTypedef(T, "Class"); | |||
7429 | } | |||
7430 | return ObjCClassDecl; | |||
7431 | } | |||
7432 | ||||
7433 | ObjCInterfaceDecl *ASTContext::getObjCProtocolDecl() const { | |||
7434 | if (!ObjCProtocolClassDecl) { | |||
7435 | ObjCProtocolClassDecl | |||
7436 | = ObjCInterfaceDecl::Create(*this, getTranslationUnitDecl(), | |||
7437 | SourceLocation(), | |||
7438 | &Idents.get("Protocol"), | |||
7439 | /*typeParamList=*/nullptr, | |||
7440 | /*PrevDecl=*/nullptr, | |||
7441 | SourceLocation(), true); | |||
7442 | } | |||
7443 | ||||
7444 | return ObjCProtocolClassDecl; | |||
7445 | } | |||
7446 | ||||
7447 | //===----------------------------------------------------------------------===// | |||
7448 | // __builtin_va_list Construction Functions | |||
7449 | //===----------------------------------------------------------------------===// | |||
7450 | ||||
7451 | static TypedefDecl *CreateCharPtrNamedVaListDecl(const ASTContext *Context, | |||
7452 | StringRef Name) { | |||
7453 | // typedef char* __builtin[_ms]_va_list; | |||
7454 | QualType T = Context->getPointerType(Context->CharTy); | |||
7455 | return Context->buildImplicitTypedef(T, Name); | |||
7456 | } | |||
7457 | ||||
7458 | static TypedefDecl *CreateMSVaListDecl(const ASTContext *Context) { | |||
7459 | return CreateCharPtrNamedVaListDecl(Context, "__builtin_ms_va_list"); | |||
7460 | } | |||
7461 | ||||
7462 | static TypedefDecl *CreateCharPtrBuiltinVaListDecl(const ASTContext *Context) { | |||
7463 | return CreateCharPtrNamedVaListDecl(Context, "__builtin_va_list"); | |||
7464 | } | |||
7465 | ||||
7466 | static TypedefDecl *CreateVoidPtrBuiltinVaListDecl(const ASTContext *Context) { | |||
7467 | // typedef void* __builtin_va_list; | |||
7468 | QualType T = Context->getPointerType(Context->VoidTy); | |||
7469 | return Context->buildImplicitTypedef(T, "__builtin_va_list"); | |||
7470 | } | |||
7471 | ||||
7472 | static TypedefDecl * | |||
7473 | CreateAArch64ABIBuiltinVaListDecl(const ASTContext *Context) { | |||
7474 | // struct __va_list | |||
7475 | RecordDecl *VaListTagDecl = Context->buildImplicitRecord("__va_list"); | |||
7476 | if (Context->getLangOpts().CPlusPlus) { | |||
7477 | // namespace std { struct __va_list { | |||
7478 | NamespaceDecl *NS; | |||
7479 | NS = NamespaceDecl::Create(const_cast<ASTContext &>(*Context), | |||
7480 | Context->getTranslationUnitDecl(), | |||
7481 | /*Inline*/ false, SourceLocation(), | |||
7482 | SourceLocation(), &Context->Idents.get("std"), | |||
7483 | /*PrevDecl*/ nullptr); | |||
7484 | NS->setImplicit(); | |||
7485 | VaListTagDecl->setDeclContext(NS); | |||
7486 | } | |||
7487 | ||||
7488 | VaListTagDecl->startDefinition(); | |||
7489 | ||||
7490 | const size_t NumFields = 5; | |||
7491 | QualType FieldTypes[NumFields]; | |||
7492 | const char *FieldNames[NumFields]; | |||
7493 | ||||
7494 | // void *__stack; | |||
7495 | FieldTypes[0] = Context->getPointerType(Context->VoidTy); | |||
7496 | FieldNames[0] = "__stack"; | |||
7497 | ||||
7498 | // void *__gr_top; | |||
7499 | FieldTypes[1] = Context->getPointerType(Context->VoidTy); | |||
7500 | FieldNames[1] = "__gr_top"; | |||
7501 | ||||
7502 | // void *__vr_top; | |||
7503 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
7504 | FieldNames[2] = "__vr_top"; | |||
7505 | ||||
7506 | // int __gr_offs; | |||
7507 | FieldTypes[3] = Context->IntTy; | |||
7508 | FieldNames[3] = "__gr_offs"; | |||
7509 | ||||
7510 | // int __vr_offs; | |||
7511 | FieldTypes[4] = Context->IntTy; | |||
7512 | FieldNames[4] = "__vr_offs"; | |||
7513 | ||||
7514 | // Create fields | |||
7515 | for (unsigned i = 0; i < NumFields; ++i) { | |||
7516 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
7517 | VaListTagDecl, | |||
7518 | SourceLocation(), | |||
7519 | SourceLocation(), | |||
7520 | &Context->Idents.get(FieldNames[i]), | |||
7521 | FieldTypes[i], /*TInfo=*/nullptr, | |||
7522 | /*BitWidth=*/nullptr, | |||
7523 | /*Mutable=*/false, | |||
7524 | ICIS_NoInit); | |||
7525 | Field->setAccess(AS_public); | |||
7526 | VaListTagDecl->addDecl(Field); | |||
7527 | } | |||
7528 | VaListTagDecl->completeDefinition(); | |||
7529 | Context->VaListTagDecl = VaListTagDecl; | |||
7530 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
7531 | ||||
7532 | // } __builtin_va_list; | |||
7533 | return Context->buildImplicitTypedef(VaListTagType, "__builtin_va_list"); | |||
7534 | } | |||
7535 | ||||
7536 | static TypedefDecl *CreatePowerABIBuiltinVaListDecl(const ASTContext *Context) { | |||
7537 | // typedef struct __va_list_tag { | |||
7538 | RecordDecl *VaListTagDecl; | |||
7539 | ||||
7540 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
7541 | VaListTagDecl->startDefinition(); | |||
7542 | ||||
7543 | const size_t NumFields = 5; | |||
7544 | QualType FieldTypes[NumFields]; | |||
7545 | const char *FieldNames[NumFields]; | |||
7546 | ||||
7547 | // unsigned char gpr; | |||
7548 | FieldTypes[0] = Context->UnsignedCharTy; | |||
7549 | FieldNames[0] = "gpr"; | |||
7550 | ||||
7551 | // unsigned char fpr; | |||
7552 | FieldTypes[1] = Context->UnsignedCharTy; | |||
7553 | FieldNames[1] = "fpr"; | |||
7554 | ||||
7555 | // unsigned short reserved; | |||
7556 | FieldTypes[2] = Context->UnsignedShortTy; | |||
7557 | FieldNames[2] = "reserved"; | |||
7558 | ||||
7559 | // void* overflow_arg_area; | |||
7560 | FieldTypes[3] = Context->getPointerType(Context->VoidTy); | |||
7561 | FieldNames[3] = "overflow_arg_area"; | |||
7562 | ||||
7563 | // void* reg_save_area; | |||
7564 | FieldTypes[4] = Context->getPointerType(Context->VoidTy); | |||
7565 | FieldNames[4] = "reg_save_area"; | |||
7566 | ||||
7567 | // Create fields | |||
7568 | for (unsigned i = 0; i < NumFields; ++i) { | |||
7569 | FieldDecl *Field = FieldDecl::Create(*Context, VaListTagDecl, | |||
7570 | SourceLocation(), | |||
7571 | SourceLocation(), | |||
7572 | &Context->Idents.get(FieldNames[i]), | |||
7573 | FieldTypes[i], /*TInfo=*/nullptr, | |||
7574 | /*BitWidth=*/nullptr, | |||
7575 | /*Mutable=*/false, | |||
7576 | ICIS_NoInit); | |||
7577 | Field->setAccess(AS_public); | |||
7578 | VaListTagDecl->addDecl(Field); | |||
7579 | } | |||
7580 | VaListTagDecl->completeDefinition(); | |||
7581 | Context->VaListTagDecl = VaListTagDecl; | |||
7582 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
7583 | ||||
7584 | // } __va_list_tag; | |||
7585 | TypedefDecl *VaListTagTypedefDecl = | |||
7586 | Context->buildImplicitTypedef(VaListTagType, "__va_list_tag"); | |||
7587 | ||||
7588 | QualType VaListTagTypedefType = | |||
7589 | Context->getTypedefType(VaListTagTypedefDecl); | |||
7590 | ||||
7591 | // typedef __va_list_tag __builtin_va_list[1]; | |||
7592 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
7593 | QualType VaListTagArrayType | |||
7594 | = Context->getConstantArrayType(VaListTagTypedefType, | |||
7595 | Size, nullptr, ArrayType::Normal, 0); | |||
7596 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
7597 | } | |||
7598 | ||||
7599 | static TypedefDecl * | |||
7600 | CreateX86_64ABIBuiltinVaListDecl(const ASTContext *Context) { | |||
7601 | // struct __va_list_tag { | |||
7602 | RecordDecl *VaListTagDecl; | |||
7603 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
7604 | VaListTagDecl->startDefinition(); | |||
7605 | ||||
7606 | const size_t NumFields = 4; | |||
7607 | QualType FieldTypes[NumFields]; | |||
7608 | const char *FieldNames[NumFields]; | |||
7609 | ||||
7610 | // unsigned gp_offset; | |||
7611 | FieldTypes[0] = Context->UnsignedIntTy; | |||
7612 | FieldNames[0] = "gp_offset"; | |||
7613 | ||||
7614 | // unsigned fp_offset; | |||
7615 | FieldTypes[1] = Context->UnsignedIntTy; | |||
7616 | FieldNames[1] = "fp_offset"; | |||
7617 | ||||
7618 | // void* overflow_arg_area; | |||
7619 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
7620 | FieldNames[2] = "overflow_arg_area"; | |||
7621 | ||||
7622 | // void* reg_save_area; | |||
7623 | FieldTypes[3] = Context->getPointerType(Context->VoidTy); | |||
7624 | FieldNames[3] = "reg_save_area"; | |||
7625 | ||||
7626 | // Create fields | |||
7627 | for (unsigned i = 0; i < NumFields; ++i) { | |||
7628 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
7629 | VaListTagDecl, | |||
7630 | SourceLocation(), | |||
7631 | SourceLocation(), | |||
7632 | &Context->Idents.get(FieldNames[i]), | |||
7633 | FieldTypes[i], /*TInfo=*/nullptr, | |||
7634 | /*BitWidth=*/nullptr, | |||
7635 | /*Mutable=*/false, | |||
7636 | ICIS_NoInit); | |||
7637 | Field->setAccess(AS_public); | |||
7638 | VaListTagDecl->addDecl(Field); | |||
7639 | } | |||
7640 | VaListTagDecl->completeDefinition(); | |||
7641 | Context->VaListTagDecl = VaListTagDecl; | |||
7642 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
7643 | ||||
7644 | // }; | |||
7645 | ||||
7646 | // typedef struct __va_list_tag __builtin_va_list[1]; | |||
7647 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
7648 | QualType VaListTagArrayType = Context->getConstantArrayType( | |||
7649 | VaListTagType, Size, nullptr, ArrayType::Normal, 0); | |||
7650 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
7651 | } | |||
7652 | ||||
7653 | static TypedefDecl *CreatePNaClABIBuiltinVaListDecl(const ASTContext *Context) { | |||
7654 | // typedef int __builtin_va_list[4]; | |||
7655 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 4); | |||
7656 | QualType IntArrayType = Context->getConstantArrayType( | |||
7657 | Context->IntTy, Size, nullptr, ArrayType::Normal, 0); | |||
7658 | return Context->buildImplicitTypedef(IntArrayType, "__builtin_va_list"); | |||
7659 | } | |||
7660 | ||||
7661 | static TypedefDecl * | |||
7662 | CreateAAPCSABIBuiltinVaListDecl(const ASTContext *Context) { | |||
7663 | // struct __va_list | |||
7664 | RecordDecl *VaListDecl = Context->buildImplicitRecord("__va_list"); | |||
7665 | if (Context->getLangOpts().CPlusPlus) { | |||
7666 | // namespace std { struct __va_list { | |||
7667 | NamespaceDecl *NS; | |||
7668 | NS = NamespaceDecl::Create(const_cast<ASTContext &>(*Context), | |||
7669 | Context->getTranslationUnitDecl(), | |||
7670 | /*Inline*/false, SourceLocation(), | |||
7671 | SourceLocation(), &Context->Idents.get("std"), | |||
7672 | /*PrevDecl*/ nullptr); | |||
7673 | NS->setImplicit(); | |||
7674 | VaListDecl->setDeclContext(NS); | |||
7675 | } | |||
7676 | ||||
7677 | VaListDecl->startDefinition(); | |||
7678 | ||||
7679 | // void * __ap; | |||
7680 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
7681 | VaListDecl, | |||
7682 | SourceLocation(), | |||
7683 | SourceLocation(), | |||
7684 | &Context->Idents.get("__ap"), | |||
7685 | Context->getPointerType(Context->VoidTy), | |||
7686 | /*TInfo=*/nullptr, | |||
7687 | /*BitWidth=*/nullptr, | |||
7688 | /*Mutable=*/false, | |||
7689 | ICIS_NoInit); | |||
7690 | Field->setAccess(AS_public); | |||
7691 | VaListDecl->addDecl(Field); | |||
7692 | ||||
7693 | // }; | |||
7694 | VaListDecl->completeDefinition(); | |||
7695 | Context->VaListTagDecl = VaListDecl; | |||
7696 | ||||
7697 | // typedef struct __va_list __builtin_va_list; | |||
7698 | QualType T = Context->getRecordType(VaListDecl); | |||
7699 | return Context->buildImplicitTypedef(T, "__builtin_va_list"); | |||
7700 | } | |||
7701 | ||||
7702 | static TypedefDecl * | |||
7703 | CreateSystemZBuiltinVaListDecl(const ASTContext *Context) { | |||
7704 | // struct __va_list_tag { | |||
7705 | RecordDecl *VaListTagDecl; | |||
7706 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
7707 | VaListTagDecl->startDefinition(); | |||
7708 | ||||
7709 | const size_t NumFields = 4; | |||
7710 | QualType FieldTypes[NumFields]; | |||
7711 | const char *FieldNames[NumFields]; | |||
7712 | ||||
7713 | // long __gpr; | |||
7714 | FieldTypes[0] = Context->LongTy; | |||
7715 | FieldNames[0] = "__gpr"; | |||
7716 | ||||
7717 | // long __fpr; | |||
7718 | FieldTypes[1] = Context->LongTy; | |||
7719 | FieldNames[1] = "__fpr"; | |||
7720 | ||||
7721 | // void *__overflow_arg_area; | |||
7722 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
7723 | FieldNames[2] = "__overflow_arg_area"; | |||
7724 | ||||
7725 | // void *__reg_save_area; | |||
7726 | FieldTypes[3] = Context->getPointerType(Context->VoidTy); | |||
7727 | FieldNames[3] = "__reg_save_area"; | |||
7728 | ||||
7729 | // Create fields | |||
7730 | for (unsigned i = 0; i < NumFields; ++i) { | |||
7731 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
7732 | VaListTagDecl, | |||
7733 | SourceLocation(), | |||
7734 | SourceLocation(), | |||
7735 | &Context->Idents.get(FieldNames[i]), | |||
7736 | FieldTypes[i], /*TInfo=*/nullptr, | |||
7737 | /*BitWidth=*/nullptr, | |||
7738 | /*Mutable=*/false, | |||
7739 | ICIS_NoInit); | |||
7740 | Field->setAccess(AS_public); | |||
7741 | VaListTagDecl->addDecl(Field); | |||
7742 | } | |||
7743 | VaListTagDecl->completeDefinition(); | |||
7744 | Context->VaListTagDecl = VaListTagDecl; | |||
7745 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
7746 | ||||
7747 | // }; | |||
7748 | ||||
7749 | // typedef __va_list_tag __builtin_va_list[1]; | |||
7750 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
7751 | QualType VaListTagArrayType = Context->getConstantArrayType( | |||
7752 | VaListTagType, Size, nullptr, ArrayType::Normal, 0); | |||
7753 | ||||
7754 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
7755 | } | |||
7756 | ||||
7757 | static TypedefDecl *CreateVaListDecl(const ASTContext *Context, | |||
7758 | TargetInfo::BuiltinVaListKind Kind) { | |||
7759 | switch (Kind) { | |||
7760 | case TargetInfo::CharPtrBuiltinVaList: | |||
7761 | return CreateCharPtrBuiltinVaListDecl(Context); | |||
7762 | case TargetInfo::VoidPtrBuiltinVaList: | |||
7763 | return CreateVoidPtrBuiltinVaListDecl(Context); | |||
7764 | case TargetInfo::AArch64ABIBuiltinVaList: | |||
7765 | return CreateAArch64ABIBuiltinVaListDecl(Context); | |||
7766 | case TargetInfo::PowerABIBuiltinVaList: | |||
7767 | return CreatePowerABIBuiltinVaListDecl(Context); | |||
7768 | case TargetInfo::X86_64ABIBuiltinVaList: | |||
7769 | return CreateX86_64ABIBuiltinVaListDecl(Context); | |||
7770 | case TargetInfo::PNaClABIBuiltinVaList: | |||
7771 | return CreatePNaClABIBuiltinVaListDecl(Context); | |||
7772 | case TargetInfo::AAPCSABIBuiltinVaList: | |||
7773 | return CreateAAPCSABIBuiltinVaListDecl(Context); | |||
7774 | case TargetInfo::SystemZBuiltinVaList: | |||
7775 | return CreateSystemZBuiltinVaListDecl(Context); | |||
7776 | } | |||
7777 | ||||
7778 | llvm_unreachable("Unhandled __builtin_va_list type kind")::llvm::llvm_unreachable_internal("Unhandled __builtin_va_list type kind" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7778); | |||
7779 | } | |||
7780 | ||||
7781 | TypedefDecl *ASTContext::getBuiltinVaListDecl() const { | |||
7782 | if (!BuiltinVaListDecl) { | |||
7783 | BuiltinVaListDecl = CreateVaListDecl(this, Target->getBuiltinVaListKind()); | |||
7784 | assert(BuiltinVaListDecl->isImplicit())((BuiltinVaListDecl->isImplicit()) ? static_cast<void> (0) : __assert_fail ("BuiltinVaListDecl->isImplicit()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7784, __PRETTY_FUNCTION__)); | |||
7785 | } | |||
7786 | ||||
7787 | return BuiltinVaListDecl; | |||
7788 | } | |||
7789 | ||||
7790 | Decl *ASTContext::getVaListTagDecl() const { | |||
7791 | // Force the creation of VaListTagDecl by building the __builtin_va_list | |||
7792 | // declaration. | |||
7793 | if (!VaListTagDecl) | |||
7794 | (void)getBuiltinVaListDecl(); | |||
7795 | ||||
7796 | return VaListTagDecl; | |||
7797 | } | |||
7798 | ||||
7799 | TypedefDecl *ASTContext::getBuiltinMSVaListDecl() const { | |||
7800 | if (!BuiltinMSVaListDecl) | |||
7801 | BuiltinMSVaListDecl = CreateMSVaListDecl(this); | |||
7802 | ||||
7803 | return BuiltinMSVaListDecl; | |||
7804 | } | |||
7805 | ||||
7806 | bool ASTContext::canBuiltinBeRedeclared(const FunctionDecl *FD) const { | |||
7807 | return BuiltinInfo.canBeRedeclared(FD->getBuiltinID()); | |||
7808 | } | |||
7809 | ||||
7810 | void ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { | |||
7811 | assert(ObjCConstantStringType.isNull() &&((ObjCConstantStringType.isNull() && "'NSConstantString' type already set!" ) ? static_cast<void> (0) : __assert_fail ("ObjCConstantStringType.isNull() && \"'NSConstantString' type already set!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7812, __PRETTY_FUNCTION__)) | |||
7812 | "'NSConstantString' type already set!")((ObjCConstantStringType.isNull() && "'NSConstantString' type already set!" ) ? static_cast<void> (0) : __assert_fail ("ObjCConstantStringType.isNull() && \"'NSConstantString' type already set!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7812, __PRETTY_FUNCTION__)); | |||
7813 | ||||
7814 | ObjCConstantStringType = getObjCInterfaceType(Decl); | |||
7815 | } | |||
7816 | ||||
7817 | /// Retrieve the template name that corresponds to a non-empty | |||
7818 | /// lookup. | |||
7819 | TemplateName | |||
7820 | ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, | |||
7821 | UnresolvedSetIterator End) const { | |||
7822 | unsigned size = End - Begin; | |||
7823 | assert(size > 1 && "set is not overloaded!")((size > 1 && "set is not overloaded!") ? static_cast <void> (0) : __assert_fail ("size > 1 && \"set is not overloaded!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7823, __PRETTY_FUNCTION__)); | |||
7824 | ||||
7825 | void *memory = Allocate(sizeof(OverloadedTemplateStorage) + | |||
7826 | size * sizeof(FunctionTemplateDecl*)); | |||
7827 | auto *OT = new (memory) OverloadedTemplateStorage(size); | |||
7828 | ||||
7829 | NamedDecl **Storage = OT->getStorage(); | |||
7830 | for (UnresolvedSetIterator I = Begin; I != End; ++I) { | |||
7831 | NamedDecl *D = *I; | |||
7832 | assert(isa<FunctionTemplateDecl>(D) ||((isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl >(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl >(D->getUnderlyingDecl()))) ? static_cast<void> ( 0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7835, __PRETTY_FUNCTION__)) | |||
7833 | isa<UnresolvedUsingValueDecl>(D) ||((isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl >(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl >(D->getUnderlyingDecl()))) ? static_cast<void> ( 0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7835, __PRETTY_FUNCTION__)) | |||
7834 | (isa<UsingShadowDecl>(D) &&((isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl >(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl >(D->getUnderlyingDecl()))) ? static_cast<void> ( 0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7835, __PRETTY_FUNCTION__)) | |||
7835 | isa<FunctionTemplateDecl>(D->getUnderlyingDecl())))((isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl >(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl >(D->getUnderlyingDecl()))) ? static_cast<void> ( 0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7835, __PRETTY_FUNCTION__)); | |||
7836 | *Storage++ = D; | |||
7837 | } | |||
7838 | ||||
7839 | return TemplateName(OT); | |||
7840 | } | |||
7841 | ||||
7842 | /// Retrieve a template name representing an unqualified-id that has been | |||
7843 | /// assumed to name a template for ADL purposes. | |||
7844 | TemplateName ASTContext::getAssumedTemplateName(DeclarationName Name) const { | |||
7845 | auto *OT = new (*this) AssumedTemplateStorage(Name); | |||
7846 | return TemplateName(OT); | |||
7847 | } | |||
7848 | ||||
7849 | /// Retrieve the template name that represents a qualified | |||
7850 | /// template name such as \c std::vector. | |||
7851 | TemplateName | |||
7852 | ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, | |||
7853 | bool TemplateKeyword, | |||
7854 | TemplateDecl *Template) const { | |||
7855 | assert(NNS && "Missing nested-name-specifier in qualified template name")((NNS && "Missing nested-name-specifier in qualified template name" ) ? static_cast<void> (0) : __assert_fail ("NNS && \"Missing nested-name-specifier in qualified template name\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7855, __PRETTY_FUNCTION__)); | |||
7856 | ||||
7857 | // FIXME: Canonicalization? | |||
7858 | llvm::FoldingSetNodeID ID; | |||
7859 | QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); | |||
7860 | ||||
7861 | void *InsertPos = nullptr; | |||
7862 | QualifiedTemplateName *QTN = | |||
7863 | QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
7864 | if (!QTN) { | |||
7865 | QTN = new (*this, alignof(QualifiedTemplateName)) | |||
7866 | QualifiedTemplateName(NNS, TemplateKeyword, Template); | |||
7867 | QualifiedTemplateNames.InsertNode(QTN, InsertPos); | |||
7868 | } | |||
7869 | ||||
7870 | return TemplateName(QTN); | |||
7871 | } | |||
7872 | ||||
7873 | /// Retrieve the template name that represents a dependent | |||
7874 | /// template name such as \c MetaFun::template apply. | |||
7875 | TemplateName | |||
7876 | ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, | |||
7877 | const IdentifierInfo *Name) const { | |||
7878 | assert((!NNS || NNS->isDependent()) &&(((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7879, __PRETTY_FUNCTION__)) | |||
7879 | "Nested name specifier must be dependent")(((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7879, __PRETTY_FUNCTION__)); | |||
7880 | ||||
7881 | llvm::FoldingSetNodeID ID; | |||
7882 | DependentTemplateName::Profile(ID, NNS, Name); | |||
7883 | ||||
7884 | void *InsertPos = nullptr; | |||
7885 | DependentTemplateName *QTN = | |||
7886 | DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
7887 | ||||
7888 | if (QTN) | |||
7889 | return TemplateName(QTN); | |||
7890 | ||||
7891 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
7892 | if (CanonNNS == NNS) { | |||
7893 | QTN = new (*this, alignof(DependentTemplateName)) | |||
7894 | DependentTemplateName(NNS, Name); | |||
7895 | } else { | |||
7896 | TemplateName Canon = getDependentTemplateName(CanonNNS, Name); | |||
7897 | QTN = new (*this, alignof(DependentTemplateName)) | |||
7898 | DependentTemplateName(NNS, Name, Canon); | |||
7899 | DependentTemplateName *CheckQTN = | |||
7900 | DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
7901 | assert(!CheckQTN && "Dependent type name canonicalization broken")((!CheckQTN && "Dependent type name canonicalization broken" ) ? static_cast<void> (0) : __assert_fail ("!CheckQTN && \"Dependent type name canonicalization broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7901, __PRETTY_FUNCTION__)); | |||
7902 | (void)CheckQTN; | |||
7903 | } | |||
7904 | ||||
7905 | DependentTemplateNames.InsertNode(QTN, InsertPos); | |||
7906 | return TemplateName(QTN); | |||
7907 | } | |||
7908 | ||||
7909 | /// Retrieve the template name that represents a dependent | |||
7910 | /// template name such as \c MetaFun::template operator+. | |||
7911 | TemplateName | |||
7912 | ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, | |||
7913 | OverloadedOperatorKind Operator) const { | |||
7914 | assert((!NNS || NNS->isDependent()) &&(((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7915, __PRETTY_FUNCTION__)) | |||
7915 | "Nested name specifier must be dependent")(((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7915, __PRETTY_FUNCTION__)); | |||
7916 | ||||
7917 | llvm::FoldingSetNodeID ID; | |||
7918 | DependentTemplateName::Profile(ID, NNS, Operator); | |||
7919 | ||||
7920 | void *InsertPos = nullptr; | |||
7921 | DependentTemplateName *QTN | |||
7922 | = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
7923 | ||||
7924 | if (QTN) | |||
7925 | return TemplateName(QTN); | |||
7926 | ||||
7927 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
7928 | if (CanonNNS == NNS) { | |||
7929 | QTN = new (*this, alignof(DependentTemplateName)) | |||
7930 | DependentTemplateName(NNS, Operator); | |||
7931 | } else { | |||
7932 | TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); | |||
7933 | QTN = new (*this, alignof(DependentTemplateName)) | |||
7934 | DependentTemplateName(NNS, Operator, Canon); | |||
7935 | ||||
7936 | DependentTemplateName *CheckQTN | |||
7937 | = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
7938 | assert(!CheckQTN && "Dependent template name canonicalization broken")((!CheckQTN && "Dependent template name canonicalization broken" ) ? static_cast<void> (0) : __assert_fail ("!CheckQTN && \"Dependent template name canonicalization broken\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 7938, __PRETTY_FUNCTION__)); | |||
7939 | (void)CheckQTN; | |||
7940 | } | |||
7941 | ||||
7942 | DependentTemplateNames.InsertNode(QTN, InsertPos); | |||
7943 | return TemplateName(QTN); | |||
7944 | } | |||
7945 | ||||
7946 | TemplateName | |||
7947 | ASTContext::getSubstTemplateTemplateParm(TemplateTemplateParmDecl *param, | |||
7948 | TemplateName replacement) const { | |||
7949 | llvm::FoldingSetNodeID ID; | |||
7950 | SubstTemplateTemplateParmStorage::Profile(ID, param, replacement); | |||
7951 | ||||
7952 | void *insertPos = nullptr; | |||
7953 | SubstTemplateTemplateParmStorage *subst | |||
7954 | = SubstTemplateTemplateParms.FindNodeOrInsertPos(ID, insertPos); | |||
7955 | ||||
7956 | if (!subst) { | |||
7957 | subst = new (*this) SubstTemplateTemplateParmStorage(param, replacement); | |||
7958 | SubstTemplateTemplateParms.InsertNode(subst, insertPos); | |||
7959 | } | |||
7960 | ||||
7961 | return TemplateName(subst); | |||
7962 | } | |||
7963 | ||||
7964 | TemplateName | |||
7965 | ASTContext::getSubstTemplateTemplateParmPack(TemplateTemplateParmDecl *Param, | |||
7966 | const TemplateArgument &ArgPack) const { | |||
7967 | auto &Self = const_cast<ASTContext &>(*this); | |||
7968 | llvm::FoldingSetNodeID ID; | |||
7969 | SubstTemplateTemplateParmPackStorage::Profile(ID, Self, Param, ArgPack); | |||
7970 | ||||
7971 | void *InsertPos = nullptr; | |||
7972 | SubstTemplateTemplateParmPackStorage *Subst | |||
7973 | = SubstTemplateTemplateParmPacks.FindNodeOrInsertPos(ID, InsertPos); | |||
7974 | ||||
7975 | if (!Subst) { | |||
7976 | Subst = new (*this) SubstTemplateTemplateParmPackStorage(Param, | |||
7977 | ArgPack.pack_size(), | |||
7978 | ArgPack.pack_begin()); | |||
7979 | SubstTemplateTemplateParmPacks.InsertNode(Subst, InsertPos); | |||
7980 | } | |||
7981 | ||||
7982 | return TemplateName(Subst); | |||
7983 | } | |||
7984 | ||||
7985 | /// getFromTargetType - Given one of the integer types provided by | |||
7986 | /// TargetInfo, produce the corresponding type. The unsigned @p Type | |||
7987 | /// is actually a value of type @c TargetInfo::IntType. | |||
7988 | CanQualType ASTContext::getFromTargetType(unsigned Type) const { | |||
7989 | switch (Type) { | |||
7990 | case TargetInfo::NoInt: return {}; | |||
7991 | case TargetInfo::SignedChar: return SignedCharTy; | |||
7992 | case TargetInfo::UnsignedChar: return UnsignedCharTy; | |||
7993 | case TargetInfo::SignedShort: return ShortTy; | |||
7994 | case TargetInfo::UnsignedShort: return UnsignedShortTy; | |||
7995 | case TargetInfo::SignedInt: return IntTy; | |||
7996 | case TargetInfo::UnsignedInt: return UnsignedIntTy; | |||
7997 | case TargetInfo::SignedLong: return LongTy; | |||
7998 | case TargetInfo::UnsignedLong: return UnsignedLongTy; | |||
7999 | case TargetInfo::SignedLongLong: return LongLongTy; | |||
8000 | case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; | |||
8001 | } | |||
8002 | ||||
8003 | llvm_unreachable("Unhandled TargetInfo::IntType value")::llvm::llvm_unreachable_internal("Unhandled TargetInfo::IntType value" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8003); | |||
8004 | } | |||
8005 | ||||
8006 | //===----------------------------------------------------------------------===// | |||
8007 | // Type Predicates. | |||
8008 | //===----------------------------------------------------------------------===// | |||
8009 | ||||
8010 | /// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's | |||
8011 | /// garbage collection attribute. | |||
8012 | /// | |||
8013 | Qualifiers::GC ASTContext::getObjCGCAttrKind(QualType Ty) const { | |||
8014 | if (getLangOpts().getGC() == LangOptions::NonGC) | |||
8015 | return Qualifiers::GCNone; | |||
8016 | ||||
8017 | assert(getLangOpts().ObjC)((getLangOpts().ObjC) ? static_cast<void> (0) : __assert_fail ("getLangOpts().ObjC", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8017, __PRETTY_FUNCTION__)); | |||
8018 | Qualifiers::GC GCAttrs = Ty.getObjCGCAttr(); | |||
8019 | ||||
8020 | // Default behaviour under objective-C's gc is for ObjC pointers | |||
8021 | // (or pointers to them) be treated as though they were declared | |||
8022 | // as __strong. | |||
8023 | if (GCAttrs == Qualifiers::GCNone) { | |||
8024 | if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) | |||
8025 | return Qualifiers::Strong; | |||
8026 | else if (Ty->isPointerType()) | |||
8027 | return getObjCGCAttrKind(Ty->castAs<PointerType>()->getPointeeType()); | |||
8028 | } else { | |||
8029 | // It's not valid to set GC attributes on anything that isn't a | |||
8030 | // pointer. | |||
8031 | #ifndef NDEBUG | |||
8032 | QualType CT = Ty->getCanonicalTypeInternal(); | |||
8033 | while (const auto *AT = dyn_cast<ArrayType>(CT)) | |||
8034 | CT = AT->getElementType(); | |||
8035 | assert(CT->isAnyPointerType() || CT->isBlockPointerType())((CT->isAnyPointerType() || CT->isBlockPointerType()) ? static_cast<void> (0) : __assert_fail ("CT->isAnyPointerType() || CT->isBlockPointerType()" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8035, __PRETTY_FUNCTION__)); | |||
8036 | #endif | |||
8037 | } | |||
8038 | return GCAttrs; | |||
8039 | } | |||
8040 | ||||
8041 | //===----------------------------------------------------------------------===// | |||
8042 | // Type Compatibility Testing | |||
8043 | //===----------------------------------------------------------------------===// | |||
8044 | ||||
8045 | /// areCompatVectorTypes - Return true if the two specified vector types are | |||
8046 | /// compatible. | |||
8047 | static bool areCompatVectorTypes(const VectorType *LHS, | |||
8048 | const VectorType *RHS) { | |||
8049 | assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified())((LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified ()) ? static_cast<void> (0) : __assert_fail ("LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8049, __PRETTY_FUNCTION__)); | |||
8050 | return LHS->getElementType() == RHS->getElementType() && | |||
8051 | LHS->getNumElements() == RHS->getNumElements(); | |||
8052 | } | |||
8053 | ||||
8054 | bool ASTContext::areCompatibleVectorTypes(QualType FirstVec, | |||
8055 | QualType SecondVec) { | |||
8056 | assert(FirstVec->isVectorType() && "FirstVec should be a vector type")((FirstVec->isVectorType() && "FirstVec should be a vector type" ) ? static_cast<void> (0) : __assert_fail ("FirstVec->isVectorType() && \"FirstVec should be a vector type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8056, __PRETTY_FUNCTION__)); | |||
8057 | assert(SecondVec->isVectorType() && "SecondVec should be a vector type")((SecondVec->isVectorType() && "SecondVec should be a vector type" ) ? static_cast<void> (0) : __assert_fail ("SecondVec->isVectorType() && \"SecondVec should be a vector type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8057, __PRETTY_FUNCTION__)); | |||
8058 | ||||
8059 | if (hasSameUnqualifiedType(FirstVec, SecondVec)) | |||
8060 | return true; | |||
8061 | ||||
8062 | // Treat Neon vector types and most AltiVec vector types as if they are the | |||
8063 | // equivalent GCC vector types. | |||
8064 | const auto *First = FirstVec->castAs<VectorType>(); | |||
8065 | const auto *Second = SecondVec->castAs<VectorType>(); | |||
8066 | if (First->getNumElements() == Second->getNumElements() && | |||
8067 | hasSameType(First->getElementType(), Second->getElementType()) && | |||
8068 | First->getVectorKind() != VectorType::AltiVecPixel && | |||
8069 | First->getVectorKind() != VectorType::AltiVecBool && | |||
8070 | Second->getVectorKind() != VectorType::AltiVecPixel && | |||
8071 | Second->getVectorKind() != VectorType::AltiVecBool) | |||
8072 | return true; | |||
8073 | ||||
8074 | return false; | |||
8075 | } | |||
8076 | ||||
8077 | bool ASTContext::hasDirectOwnershipQualifier(QualType Ty) const { | |||
8078 | while (true) { | |||
8079 | // __strong id | |||
8080 | if (const AttributedType *Attr = dyn_cast<AttributedType>(Ty)) { | |||
8081 | if (Attr->getAttrKind() == attr::ObjCOwnership) | |||
8082 | return true; | |||
8083 | ||||
8084 | Ty = Attr->getModifiedType(); | |||
8085 | ||||
8086 | // X *__strong (...) | |||
8087 | } else if (const ParenType *Paren = dyn_cast<ParenType>(Ty)) { | |||
8088 | Ty = Paren->getInnerType(); | |||
8089 | ||||
8090 | // We do not want to look through typedefs, typeof(expr), | |||
8091 | // typeof(type), or any other way that the type is somehow | |||
8092 | // abstracted. | |||
8093 | } else { | |||
8094 | return false; | |||
8095 | } | |||
8096 | } | |||
8097 | } | |||
8098 | ||||
8099 | //===----------------------------------------------------------------------===// | |||
8100 | // ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. | |||
8101 | //===----------------------------------------------------------------------===// | |||
8102 | ||||
8103 | /// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the | |||
8104 | /// inheritance hierarchy of 'rProto'. | |||
8105 | bool | |||
8106 | ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, | |||
8107 | ObjCProtocolDecl *rProto) const { | |||
8108 | if (declaresSameEntity(lProto, rProto)) | |||
8109 | return true; | |||
8110 | for (auto *PI : rProto->protocols()) | |||
8111 | if (ProtocolCompatibleWithProtocol(lProto, PI)) | |||
8112 | return true; | |||
8113 | return false; | |||
8114 | } | |||
8115 | ||||
8116 | /// ObjCQualifiedClassTypesAreCompatible - compare Class<pr,...> and | |||
8117 | /// Class<pr1, ...>. | |||
8118 | bool ASTContext::ObjCQualifiedClassTypesAreCompatible( | |||
8119 | const ObjCObjectPointerType *lhs, const ObjCObjectPointerType *rhs) { | |||
8120 | for (auto *lhsProto : lhs->quals()) { | |||
8121 | bool match = false; | |||
8122 | for (auto *rhsProto : rhs->quals()) { | |||
8123 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto)) { | |||
8124 | match = true; | |||
8125 | break; | |||
8126 | } | |||
8127 | } | |||
8128 | if (!match) | |||
8129 | return false; | |||
8130 | } | |||
8131 | return true; | |||
8132 | } | |||
8133 | ||||
8134 | /// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an | |||
8135 | /// ObjCQualifiedIDType. | |||
8136 | bool ASTContext::ObjCQualifiedIdTypesAreCompatible( | |||
8137 | const ObjCObjectPointerType *lhs, const ObjCObjectPointerType *rhs, | |||
8138 | bool compare) { | |||
8139 | // Allow id<P..> and an 'id' in all cases. | |||
8140 | if (lhs->isObjCIdType() || rhs->isObjCIdType()) | |||
8141 | return true; | |||
8142 | ||||
8143 | // Don't allow id<P..> to convert to Class or Class<P..> in either direction. | |||
8144 | if (lhs->isObjCClassType() || lhs->isObjCQualifiedClassType() || | |||
8145 | rhs->isObjCClassType() || rhs->isObjCQualifiedClassType()) | |||
8146 | return false; | |||
8147 | ||||
8148 | if (lhs->isObjCQualifiedIdType()) { | |||
8149 | if (rhs->qual_empty()) { | |||
8150 | // If the RHS is a unqualified interface pointer "NSString*", | |||
8151 | // make sure we check the class hierarchy. | |||
8152 | if (ObjCInterfaceDecl *rhsID = rhs->getInterfaceDecl()) { | |||
8153 | for (auto *I : lhs->quals()) { | |||
8154 | // when comparing an id<P> on lhs with a static type on rhs, | |||
8155 | // see if static class implements all of id's protocols, directly or | |||
8156 | // through its super class and categories. | |||
8157 | if (!rhsID->ClassImplementsProtocol(I, true)) | |||
8158 | return false; | |||
8159 | } | |||
8160 | } | |||
8161 | // If there are no qualifiers and no interface, we have an 'id'. | |||
8162 | return true; | |||
8163 | } | |||
8164 | // Both the right and left sides have qualifiers. | |||
8165 | for (auto *lhsProto : lhs->quals()) { | |||
8166 | bool match = false; | |||
8167 | ||||
8168 | // when comparing an id<P> on lhs with a static type on rhs, | |||
8169 | // see if static class implements all of id's protocols, directly or | |||
8170 | // through its super class and categories. | |||
8171 | for (auto *rhsProto : rhs->quals()) { | |||
8172 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || | |||
8173 | (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { | |||
8174 | match = true; | |||
8175 | break; | |||
8176 | } | |||
8177 | } | |||
8178 | // If the RHS is a qualified interface pointer "NSString<P>*", | |||
8179 | // make sure we check the class hierarchy. | |||
8180 | if (ObjCInterfaceDecl *rhsID = rhs->getInterfaceDecl()) { | |||
8181 | for (auto *I : lhs->quals()) { | |||
8182 | // when comparing an id<P> on lhs with a static type on rhs, | |||
8183 | // see if static class implements all of id's protocols, directly or | |||
8184 | // through its super class and categories. | |||
8185 | if (rhsID->ClassImplementsProtocol(I, true)) { | |||
8186 | match = true; | |||
8187 | break; | |||
8188 | } | |||
8189 | } | |||
8190 | } | |||
8191 | if (!match) | |||
8192 | return false; | |||
8193 | } | |||
8194 | ||||
8195 | return true; | |||
8196 | } | |||
8197 | ||||
8198 | assert(rhs->isObjCQualifiedIdType() && "One of the LHS/RHS should be id<x>")((rhs->isObjCQualifiedIdType() && "One of the LHS/RHS should be id<x>" ) ? static_cast<void> (0) : __assert_fail ("rhs->isObjCQualifiedIdType() && \"One of the LHS/RHS should be id<x>\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8198, __PRETTY_FUNCTION__)); | |||
8199 | ||||
8200 | if (lhs->getInterfaceType()) { | |||
8201 | // If both the right and left sides have qualifiers. | |||
8202 | for (auto *lhsProto : lhs->quals()) { | |||
8203 | bool match = false; | |||
8204 | ||||
8205 | // when comparing an id<P> on rhs with a static type on lhs, | |||
8206 | // see if static class implements all of id's protocols, directly or | |||
8207 | // through its super class and categories. | |||
8208 | // First, lhs protocols in the qualifier list must be found, direct | |||
8209 | // or indirect in rhs's qualifier list or it is a mismatch. | |||
8210 | for (auto *rhsProto : rhs->quals()) { | |||
8211 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || | |||
8212 | (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { | |||
8213 | match = true; | |||
8214 | break; | |||
8215 | } | |||
8216 | } | |||
8217 | if (!match) | |||
8218 | return false; | |||
8219 | } | |||
8220 | ||||
8221 | // Static class's protocols, or its super class or category protocols | |||
8222 | // must be found, direct or indirect in rhs's qualifier list or it is a mismatch. | |||
8223 | if (ObjCInterfaceDecl *lhsID = lhs->getInterfaceDecl()) { | |||
8224 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; | |||
8225 | CollectInheritedProtocols(lhsID, LHSInheritedProtocols); | |||
8226 | // This is rather dubious but matches gcc's behavior. If lhs has | |||
8227 | // no type qualifier and its class has no static protocol(s) | |||
8228 | // assume that it is mismatch. | |||
8229 | if (LHSInheritedProtocols.empty() && lhs->qual_empty()) | |||
8230 | return false; | |||
8231 | for (auto *lhsProto : LHSInheritedProtocols) { | |||
8232 | bool match = false; | |||
8233 | for (auto *rhsProto : rhs->quals()) { | |||
8234 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || | |||
8235 | (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { | |||
8236 | match = true; | |||
8237 | break; | |||
8238 | } | |||
8239 | } | |||
8240 | if (!match) | |||
8241 | return false; | |||
8242 | } | |||
8243 | } | |||
8244 | return true; | |||
8245 | } | |||
8246 | return false; | |||
8247 | } | |||
8248 | ||||
8249 | /// canAssignObjCInterfaces - Return true if the two interface types are | |||
8250 | /// compatible for assignment from RHS to LHS. This handles validation of any | |||
8251 | /// protocol qualifiers on the LHS or RHS. | |||
8252 | bool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, | |||
8253 | const ObjCObjectPointerType *RHSOPT) { | |||
8254 | const ObjCObjectType* LHS = LHSOPT->getObjectType(); | |||
| ||||
8255 | const ObjCObjectType* RHS = RHSOPT->getObjectType(); | |||
8256 | ||||
8257 | // If either type represents the built-in 'id' type, return true. | |||
8258 | if (LHS->isObjCUnqualifiedId() || RHS->isObjCUnqualifiedId()) | |||
8259 | return true; | |||
8260 | ||||
8261 | // Function object that propagates a successful result or handles | |||
8262 | // __kindof types. | |||
8263 | auto finish = [&](bool succeeded) -> bool { | |||
8264 | if (succeeded) | |||
8265 | return true; | |||
8266 | ||||
8267 | if (!RHS->isKindOfType()) | |||
8268 | return false; | |||
8269 | ||||
8270 | // Strip off __kindof and protocol qualifiers, then check whether | |||
8271 | // we can assign the other way. | |||
8272 | return canAssignObjCInterfaces(RHSOPT->stripObjCKindOfTypeAndQuals(*this), | |||
8273 | LHSOPT->stripObjCKindOfTypeAndQuals(*this)); | |||
8274 | }; | |||
8275 | ||||
8276 | // Casts from or to id<P> are allowed when the other side has compatible | |||
8277 | // protocols. | |||
8278 | if (LHS->isObjCQualifiedId() || RHS->isObjCQualifiedId()) { | |||
8279 | return finish(ObjCQualifiedIdTypesAreCompatible(LHSOPT, RHSOPT, false)); | |||
8280 | } | |||
8281 | ||||
8282 | // Verify protocol compatibility for casts from Class<P1> to Class<P2>. | |||
8283 | if (LHS->isObjCQualifiedClass() && RHS->isObjCQualifiedClass()) { | |||
8284 | return finish(ObjCQualifiedClassTypesAreCompatible(LHSOPT, RHSOPT)); | |||
8285 | } | |||
8286 | ||||
8287 | // Casts from Class to Class<Foo>, or vice-versa, are allowed. | |||
8288 | if (LHS->isObjCClass() && RHS->isObjCClass()) { | |||
8289 | return true; | |||
8290 | } | |||
8291 | ||||
8292 | // If we have 2 user-defined types, fall into that path. | |||
8293 | if (LHS->getInterface() && RHS->getInterface()) { | |||
8294 | return finish(canAssignObjCInterfaces(LHS, RHS)); | |||
8295 | } | |||
8296 | ||||
8297 | return false; | |||
8298 | } | |||
8299 | ||||
8300 | /// canAssignObjCInterfacesInBlockPointer - This routine is specifically written | |||
8301 | /// for providing type-safety for objective-c pointers used to pass/return | |||
8302 | /// arguments in block literals. When passed as arguments, passing 'A*' where | |||
8303 | /// 'id' is expected is not OK. Passing 'Sub *" where 'Super *" is expected is | |||
8304 | /// not OK. For the return type, the opposite is not OK. | |||
8305 | bool ASTContext::canAssignObjCInterfacesInBlockPointer( | |||
8306 | const ObjCObjectPointerType *LHSOPT, | |||
8307 | const ObjCObjectPointerType *RHSOPT, | |||
8308 | bool BlockReturnType) { | |||
8309 | ||||
8310 | // Function object that propagates a successful result or handles | |||
8311 | // __kindof types. | |||
8312 | auto finish = [&](bool succeeded) -> bool { | |||
8313 | if (succeeded) | |||
8314 | return true; | |||
8315 | ||||
8316 | const ObjCObjectPointerType *Expected = BlockReturnType ? RHSOPT : LHSOPT; | |||
8317 | if (!Expected->isKindOfType()) | |||
8318 | return false; | |||
8319 | ||||
8320 | // Strip off __kindof and protocol qualifiers, then check whether | |||
8321 | // we can assign the other way. | |||
8322 | return canAssignObjCInterfacesInBlockPointer( | |||
8323 | RHSOPT->stripObjCKindOfTypeAndQuals(*this), | |||
8324 | LHSOPT->stripObjCKindOfTypeAndQuals(*this), | |||
8325 | BlockReturnType); | |||
8326 | }; | |||
8327 | ||||
8328 | if (RHSOPT->isObjCBuiltinType() || LHSOPT->isObjCIdType()) | |||
8329 | return true; | |||
8330 | ||||
8331 | if (LHSOPT->isObjCBuiltinType()) { | |||
8332 | return finish(RHSOPT->isObjCBuiltinType() || | |||
8333 | RHSOPT->isObjCQualifiedIdType()); | |||
8334 | } | |||
8335 | ||||
8336 | if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) | |||
8337 | return finish(ObjCQualifiedIdTypesAreCompatible( | |||
8338 | (BlockReturnType ? LHSOPT : RHSOPT), | |||
8339 | (BlockReturnType ? RHSOPT : LHSOPT), false)); | |||
8340 | ||||
8341 | const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); | |||
8342 | const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); | |||
8343 | if (LHS && RHS) { // We have 2 user-defined types. | |||
8344 | if (LHS != RHS) { | |||
8345 | if (LHS->getDecl()->isSuperClassOf(RHS->getDecl())) | |||
8346 | return finish(BlockReturnType); | |||
8347 | if (RHS->getDecl()->isSuperClassOf(LHS->getDecl())) | |||
8348 | return finish(!BlockReturnType); | |||
8349 | } | |||
8350 | else | |||
8351 | return true; | |||
8352 | } | |||
8353 | return false; | |||
8354 | } | |||
8355 | ||||
8356 | /// Comparison routine for Objective-C protocols to be used with | |||
8357 | /// llvm::array_pod_sort. | |||
8358 | static int compareObjCProtocolsByName(ObjCProtocolDecl * const *lhs, | |||
8359 | ObjCProtocolDecl * const *rhs) { | |||
8360 | return (*lhs)->getName().compare((*rhs)->getName()); | |||
8361 | } | |||
8362 | ||||
8363 | /// getIntersectionOfProtocols - This routine finds the intersection of set | |||
8364 | /// of protocols inherited from two distinct objective-c pointer objects with | |||
8365 | /// the given common base. | |||
8366 | /// It is used to build composite qualifier list of the composite type of | |||
8367 | /// the conditional expression involving two objective-c pointer objects. | |||
8368 | static | |||
8369 | void getIntersectionOfProtocols(ASTContext &Context, | |||
8370 | const ObjCInterfaceDecl *CommonBase, | |||
8371 | const ObjCObjectPointerType *LHSOPT, | |||
8372 | const ObjCObjectPointerType *RHSOPT, | |||
8373 | SmallVectorImpl<ObjCProtocolDecl *> &IntersectionSet) { | |||
8374 | ||||
8375 | const ObjCObjectType* LHS = LHSOPT->getObjectType(); | |||
8376 | const ObjCObjectType* RHS = RHSOPT->getObjectType(); | |||
8377 | assert(LHS->getInterface() && "LHS must have an interface base")((LHS->getInterface() && "LHS must have an interface base" ) ? static_cast<void> (0) : __assert_fail ("LHS->getInterface() && \"LHS must have an interface base\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8377, __PRETTY_FUNCTION__)); | |||
8378 | assert(RHS->getInterface() && "RHS must have an interface base")((RHS->getInterface() && "RHS must have an interface base" ) ? static_cast<void> (0) : __assert_fail ("RHS->getInterface() && \"RHS must have an interface base\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8378, __PRETTY_FUNCTION__)); | |||
8379 | ||||
8380 | // Add all of the protocols for the LHS. | |||
8381 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSProtocolSet; | |||
8382 | ||||
8383 | // Start with the protocol qualifiers. | |||
8384 | for (auto proto : LHS->quals()) { | |||
8385 | Context.CollectInheritedProtocols(proto, LHSProtocolSet); | |||
8386 | } | |||
8387 | ||||
8388 | // Also add the protocols associated with the LHS interface. | |||
8389 | Context.CollectInheritedProtocols(LHS->getInterface(), LHSProtocolSet); | |||
8390 | ||||
8391 | // Add all of the protocols for the RHS. | |||
8392 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSProtocolSet; | |||
8393 | ||||
8394 | // Start with the protocol qualifiers. | |||
8395 | for (auto proto : RHS->quals()) { | |||
8396 | Context.CollectInheritedProtocols(proto, RHSProtocolSet); | |||
8397 | } | |||
8398 | ||||
8399 | // Also add the protocols associated with the RHS interface. | |||
8400 | Context.CollectInheritedProtocols(RHS->getInterface(), RHSProtocolSet); | |||
8401 | ||||
8402 | // Compute the intersection of the collected protocol sets. | |||
8403 | for (auto proto : LHSProtocolSet) { | |||
8404 | if (RHSProtocolSet.count(proto)) | |||
8405 | IntersectionSet.push_back(proto); | |||
8406 | } | |||
8407 | ||||
8408 | // Compute the set of protocols that is implied by either the common type or | |||
8409 | // the protocols within the intersection. | |||
8410 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> ImpliedProtocols; | |||
8411 | Context.CollectInheritedProtocols(CommonBase, ImpliedProtocols); | |||
8412 | ||||
8413 | // Remove any implied protocols from the list of inherited protocols. | |||
8414 | if (!ImpliedProtocols.empty()) { | |||
8415 | IntersectionSet.erase( | |||
8416 | std::remove_if(IntersectionSet.begin(), | |||
8417 | IntersectionSet.end(), | |||
8418 | [&](ObjCProtocolDecl *proto) -> bool { | |||
8419 | return ImpliedProtocols.count(proto) > 0; | |||
8420 | }), | |||
8421 | IntersectionSet.end()); | |||
8422 | } | |||
8423 | ||||
8424 | // Sort the remaining protocols by name. | |||
8425 | llvm::array_pod_sort(IntersectionSet.begin(), IntersectionSet.end(), | |||
8426 | compareObjCProtocolsByName); | |||
8427 | } | |||
8428 | ||||
8429 | /// Determine whether the first type is a subtype of the second. | |||
8430 | static bool canAssignObjCObjectTypes(ASTContext &ctx, QualType lhs, | |||
8431 | QualType rhs) { | |||
8432 | // Common case: two object pointers. | |||
8433 | const auto *lhsOPT = lhs->getAs<ObjCObjectPointerType>(); | |||
8434 | const auto *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); | |||
8435 | if (lhsOPT && rhsOPT) | |||
8436 | return ctx.canAssignObjCInterfaces(lhsOPT, rhsOPT); | |||
8437 | ||||
8438 | // Two block pointers. | |||
8439 | const auto *lhsBlock = lhs->getAs<BlockPointerType>(); | |||
8440 | const auto *rhsBlock = rhs->getAs<BlockPointerType>(); | |||
8441 | if (lhsBlock && rhsBlock) | |||
8442 | return ctx.typesAreBlockPointerCompatible(lhs, rhs); | |||
8443 | ||||
8444 | // If either is an unqualified 'id' and the other is a block, it's | |||
8445 | // acceptable. | |||
8446 | if ((lhsOPT && lhsOPT->isObjCIdType() && rhsBlock) || | |||
8447 | (rhsOPT && rhsOPT->isObjCIdType() && lhsBlock)) | |||
8448 | return true; | |||
8449 | ||||
8450 | return false; | |||
8451 | } | |||
8452 | ||||
8453 | // Check that the given Objective-C type argument lists are equivalent. | |||
8454 | static bool sameObjCTypeArgs(ASTContext &ctx, | |||
8455 | const ObjCInterfaceDecl *iface, | |||
8456 | ArrayRef<QualType> lhsArgs, | |||
8457 | ArrayRef<QualType> rhsArgs, | |||
8458 | bool stripKindOf) { | |||
8459 | if (lhsArgs.size() != rhsArgs.size()) | |||
8460 | return false; | |||
8461 | ||||
8462 | ObjCTypeParamList *typeParams = iface->getTypeParamList(); | |||
8463 | for (unsigned i = 0, n = lhsArgs.size(); i != n; ++i) { | |||
8464 | if (ctx.hasSameType(lhsArgs[i], rhsArgs[i])) | |||
8465 | continue; | |||
8466 | ||||
8467 | switch (typeParams->begin()[i]->getVariance()) { | |||
8468 | case ObjCTypeParamVariance::Invariant: | |||
8469 | if (!stripKindOf || | |||
8470 | !ctx.hasSameType(lhsArgs[i].stripObjCKindOfType(ctx), | |||
8471 | rhsArgs[i].stripObjCKindOfType(ctx))) { | |||
8472 | return false; | |||
8473 | } | |||
8474 | break; | |||
8475 | ||||
8476 | case ObjCTypeParamVariance::Covariant: | |||
8477 | if (!canAssignObjCObjectTypes(ctx, lhsArgs[i], rhsArgs[i])) | |||
8478 | return false; | |||
8479 | break; | |||
8480 | ||||
8481 | case ObjCTypeParamVariance::Contravariant: | |||
8482 | if (!canAssignObjCObjectTypes(ctx, rhsArgs[i], lhsArgs[i])) | |||
8483 | return false; | |||
8484 | break; | |||
8485 | } | |||
8486 | } | |||
8487 | ||||
8488 | return true; | |||
8489 | } | |||
8490 | ||||
8491 | QualType ASTContext::areCommonBaseCompatible( | |||
8492 | const ObjCObjectPointerType *Lptr, | |||
8493 | const ObjCObjectPointerType *Rptr) { | |||
8494 | const ObjCObjectType *LHS = Lptr->getObjectType(); | |||
8495 | const ObjCObjectType *RHS = Rptr->getObjectType(); | |||
8496 | const ObjCInterfaceDecl* LDecl = LHS->getInterface(); | |||
8497 | const ObjCInterfaceDecl* RDecl = RHS->getInterface(); | |||
8498 | ||||
8499 | if (!LDecl || !RDecl) | |||
8500 | return {}; | |||
8501 | ||||
8502 | // When either LHS or RHS is a kindof type, we should return a kindof type. | |||
8503 | // For example, for common base of kindof(ASub1) and kindof(ASub2), we return | |||
8504 | // kindof(A). | |||
8505 | bool anyKindOf = LHS->isKindOfType() || RHS->isKindOfType(); | |||
8506 | ||||
8507 | // Follow the left-hand side up the class hierarchy until we either hit a | |||
8508 | // root or find the RHS. Record the ancestors in case we don't find it. | |||
8509 | llvm::SmallDenseMap<const ObjCInterfaceDecl *, const ObjCObjectType *, 4> | |||
8510 | LHSAncestors; | |||
8511 | while (true) { | |||
8512 | // Record this ancestor. We'll need this if the common type isn't in the | |||
8513 | // path from the LHS to the root. | |||
8514 | LHSAncestors[LHS->getInterface()->getCanonicalDecl()] = LHS; | |||
8515 | ||||
8516 | if (declaresSameEntity(LHS->getInterface(), RDecl)) { | |||
8517 | // Get the type arguments. | |||
8518 | ArrayRef<QualType> LHSTypeArgs = LHS->getTypeArgsAsWritten(); | |||
8519 | bool anyChanges = false; | |||
8520 | if (LHS->isSpecialized() && RHS->isSpecialized()) { | |||
8521 | // Both have type arguments, compare them. | |||
8522 | if (!sameObjCTypeArgs(*this, LHS->getInterface(), | |||
8523 | LHS->getTypeArgs(), RHS->getTypeArgs(), | |||
8524 | /*stripKindOf=*/true)) | |||
8525 | return {}; | |||
8526 | } else if (LHS->isSpecialized() != RHS->isSpecialized()) { | |||
8527 | // If only one has type arguments, the result will not have type | |||
8528 | // arguments. | |||
8529 | LHSTypeArgs = {}; | |||
8530 | anyChanges = true; | |||
8531 | } | |||
8532 | ||||
8533 | // Compute the intersection of protocols. | |||
8534 | SmallVector<ObjCProtocolDecl *, 8> Protocols; | |||
8535 | getIntersectionOfProtocols(*this, LHS->getInterface(), Lptr, Rptr, | |||
8536 | Protocols); | |||
8537 | if (!Protocols.empty()) | |||
8538 | anyChanges = true; | |||
8539 | ||||
8540 | // If anything in the LHS will have changed, build a new result type. | |||
8541 | // If we need to return a kindof type but LHS is not a kindof type, we | |||
8542 | // build a new result type. | |||
8543 | if (anyChanges || LHS->isKindOfType() != anyKindOf) { | |||
8544 | QualType Result = getObjCInterfaceType(LHS->getInterface()); | |||
8545 | Result = getObjCObjectType(Result, LHSTypeArgs, Protocols, | |||
8546 | anyKindOf || LHS->isKindOfType()); | |||
8547 | return getObjCObjectPointerType(Result); | |||
8548 | } | |||
8549 | ||||
8550 | return getObjCObjectPointerType(QualType(LHS, 0)); | |||
8551 | } | |||
8552 | ||||
8553 | // Find the superclass. | |||
8554 | QualType LHSSuperType = LHS->getSuperClassType(); | |||
8555 | if (LHSSuperType.isNull()) | |||
8556 | break; | |||
8557 | ||||
8558 | LHS = LHSSuperType->castAs<ObjCObjectType>(); | |||
8559 | } | |||
8560 | ||||
8561 | // We didn't find anything by following the LHS to its root; now check | |||
8562 | // the RHS against the cached set of ancestors. | |||
8563 | while (true) { | |||
8564 | auto KnownLHS = LHSAncestors.find(RHS->getInterface()->getCanonicalDecl()); | |||
8565 | if (KnownLHS != LHSAncestors.end()) { | |||
8566 | LHS = KnownLHS->second; | |||
8567 | ||||
8568 | // Get the type arguments. | |||
8569 | ArrayRef<QualType> RHSTypeArgs = RHS->getTypeArgsAsWritten(); | |||
8570 | bool anyChanges = false; | |||
8571 | if (LHS->isSpecialized() && RHS->isSpecialized()) { | |||
8572 | // Both have type arguments, compare them. | |||
8573 | if (!sameObjCTypeArgs(*this, LHS->getInterface(), | |||
8574 | LHS->getTypeArgs(), RHS->getTypeArgs(), | |||
8575 | /*stripKindOf=*/true)) | |||
8576 | return {}; | |||
8577 | } else if (LHS->isSpecialized() != RHS->isSpecialized()) { | |||
8578 | // If only one has type arguments, the result will not have type | |||
8579 | // arguments. | |||
8580 | RHSTypeArgs = {}; | |||
8581 | anyChanges = true; | |||
8582 | } | |||
8583 | ||||
8584 | // Compute the intersection of protocols. | |||
8585 | SmallVector<ObjCProtocolDecl *, 8> Protocols; | |||
8586 | getIntersectionOfProtocols(*this, RHS->getInterface(), Lptr, Rptr, | |||
8587 | Protocols); | |||
8588 | if (!Protocols.empty()) | |||
8589 | anyChanges = true; | |||
8590 | ||||
8591 | // If we need to return a kindof type but RHS is not a kindof type, we | |||
8592 | // build a new result type. | |||
8593 | if (anyChanges || RHS->isKindOfType() != anyKindOf) { | |||
8594 | QualType Result = getObjCInterfaceType(RHS->getInterface()); | |||
8595 | Result = getObjCObjectType(Result, RHSTypeArgs, Protocols, | |||
8596 | anyKindOf || RHS->isKindOfType()); | |||
8597 | return getObjCObjectPointerType(Result); | |||
8598 | } | |||
8599 | ||||
8600 | return getObjCObjectPointerType(QualType(RHS, 0)); | |||
8601 | } | |||
8602 | ||||
8603 | // Find the superclass of the RHS. | |||
8604 | QualType RHSSuperType = RHS->getSuperClassType(); | |||
8605 | if (RHSSuperType.isNull()) | |||
8606 | break; | |||
8607 | ||||
8608 | RHS = RHSSuperType->castAs<ObjCObjectType>(); | |||
8609 | } | |||
8610 | ||||
8611 | return {}; | |||
8612 | } | |||
8613 | ||||
8614 | bool ASTContext::canAssignObjCInterfaces(const ObjCObjectType *LHS, | |||
8615 | const ObjCObjectType *RHS) { | |||
8616 | assert(LHS->getInterface() && "LHS is not an interface type")((LHS->getInterface() && "LHS is not an interface type" ) ? static_cast<void> (0) : __assert_fail ("LHS->getInterface() && \"LHS is not an interface type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8616, __PRETTY_FUNCTION__)); | |||
8617 | assert(RHS->getInterface() && "RHS is not an interface type")((RHS->getInterface() && "RHS is not an interface type" ) ? static_cast<void> (0) : __assert_fail ("RHS->getInterface() && \"RHS is not an interface type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8617, __PRETTY_FUNCTION__)); | |||
8618 | ||||
8619 | // Verify that the base decls are compatible: the RHS must be a subclass of | |||
8620 | // the LHS. | |||
8621 | ObjCInterfaceDecl *LHSInterface = LHS->getInterface(); | |||
8622 | bool IsSuperClass = LHSInterface->isSuperClassOf(RHS->getInterface()); | |||
8623 | if (!IsSuperClass) | |||
8624 | return false; | |||
8625 | ||||
8626 | // If the LHS has protocol qualifiers, determine whether all of them are | |||
8627 | // satisfied by the RHS (i.e., the RHS has a superset of the protocols in the | |||
8628 | // LHS). | |||
8629 | if (LHS->getNumProtocols() > 0) { | |||
8630 | // OK if conversion of LHS to SuperClass results in narrowing of types | |||
8631 | // ; i.e., SuperClass may implement at least one of the protocols | |||
8632 | // in LHS's protocol list. Example, SuperObj<P1> = lhs<P1,P2> is ok. | |||
8633 | // But not SuperObj<P1,P2,P3> = lhs<P1,P2>. | |||
8634 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> SuperClassInheritedProtocols; | |||
8635 | CollectInheritedProtocols(RHS->getInterface(), SuperClassInheritedProtocols); | |||
8636 | // Also, if RHS has explicit quelifiers, include them for comparing with LHS's | |||
8637 | // qualifiers. | |||
8638 | for (auto *RHSPI : RHS->quals()) | |||
8639 | CollectInheritedProtocols(RHSPI, SuperClassInheritedProtocols); | |||
8640 | // If there is no protocols associated with RHS, it is not a match. | |||
8641 | if (SuperClassInheritedProtocols.empty()) | |||
8642 | return false; | |||
8643 | ||||
8644 | for (const auto *LHSProto : LHS->quals()) { | |||
8645 | bool SuperImplementsProtocol = false; | |||
8646 | for (auto *SuperClassProto : SuperClassInheritedProtocols) | |||
8647 | if (SuperClassProto->lookupProtocolNamed(LHSProto->getIdentifier())) { | |||
8648 | SuperImplementsProtocol = true; | |||
8649 | break; | |||
8650 | } | |||
8651 | if (!SuperImplementsProtocol) | |||
8652 | return false; | |||
8653 | } | |||
8654 | } | |||
8655 | ||||
8656 | // If the LHS is specialized, we may need to check type arguments. | |||
8657 | if (LHS->isSpecialized()) { | |||
8658 | // Follow the superclass chain until we've matched the LHS class in the | |||
8659 | // hierarchy. This substitutes type arguments through. | |||
8660 | const ObjCObjectType *RHSSuper = RHS; | |||
8661 | while (!declaresSameEntity(RHSSuper->getInterface(), LHSInterface)) | |||
8662 | RHSSuper = RHSSuper->getSuperClassType()->castAs<ObjCObjectType>(); | |||
8663 | ||||
8664 | // If the RHS is specializd, compare type arguments. | |||
8665 | if (RHSSuper->isSpecialized() && | |||
8666 | !sameObjCTypeArgs(*this, LHS->getInterface(), | |||
8667 | LHS->getTypeArgs(), RHSSuper->getTypeArgs(), | |||
8668 | /*stripKindOf=*/true)) { | |||
8669 | return false; | |||
8670 | } | |||
8671 | } | |||
8672 | ||||
8673 | return true; | |||
8674 | } | |||
8675 | ||||
8676 | bool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { | |||
8677 | // get the "pointed to" types | |||
8678 | const auto *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); | |||
8679 | const auto *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); | |||
8680 | ||||
8681 | if (!LHSOPT || !RHSOPT) | |||
8682 | return false; | |||
8683 | ||||
8684 | return canAssignObjCInterfaces(LHSOPT, RHSOPT) || | |||
8685 | canAssignObjCInterfaces(RHSOPT, LHSOPT); | |||
8686 | } | |||
8687 | ||||
8688 | bool ASTContext::canBindObjCObjectType(QualType To, QualType From) { | |||
8689 | return canAssignObjCInterfaces( | |||
8690 | getObjCObjectPointerType(To)->getAs<ObjCObjectPointerType>(), | |||
| ||||
8691 | getObjCObjectPointerType(From)->getAs<ObjCObjectPointerType>()); | |||
8692 | } | |||
8693 | ||||
8694 | /// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, | |||
8695 | /// both shall have the identically qualified version of a compatible type. | |||
8696 | /// C99 6.2.7p1: Two types have compatible types if their types are the | |||
8697 | /// same. See 6.7.[2,3,5] for additional rules. | |||
8698 | bool ASTContext::typesAreCompatible(QualType LHS, QualType RHS, | |||
8699 | bool CompareUnqualified) { | |||
8700 | if (getLangOpts().CPlusPlus) | |||
8701 | return hasSameType(LHS, RHS); | |||
8702 | ||||
8703 | return !mergeTypes(LHS, RHS, false, CompareUnqualified).isNull(); | |||
8704 | } | |||
8705 | ||||
8706 | bool ASTContext::propertyTypesAreCompatible(QualType LHS, QualType RHS) { | |||
8707 | return typesAreCompatible(LHS, RHS); | |||
8708 | } | |||
8709 | ||||
8710 | bool ASTContext::typesAreBlockPointerCompatible(QualType LHS, QualType RHS) { | |||
8711 | return !mergeTypes(LHS, RHS, true).isNull(); | |||
8712 | } | |||
8713 | ||||
8714 | /// mergeTransparentUnionType - if T is a transparent union type and a member | |||
8715 | /// of T is compatible with SubType, return the merged type, else return | |||
8716 | /// QualType() | |||
8717 | QualType ASTContext::mergeTransparentUnionType(QualType T, QualType SubType, | |||
8718 | bool OfBlockPointer, | |||
8719 | bool Unqualified) { | |||
8720 | if (const RecordType *UT = T->getAsUnionType()) { | |||
8721 | RecordDecl *UD = UT->getDecl(); | |||
8722 | if (UD->hasAttr<TransparentUnionAttr>()) { | |||
8723 | for (const auto *I : UD->fields()) { | |||
8724 | QualType ET = I->getType().getUnqualifiedType(); | |||
8725 | QualType MT = mergeTypes(ET, SubType, OfBlockPointer, Unqualified); | |||
8726 | if (!MT.isNull()) | |||
8727 | return MT; | |||
8728 | } | |||
8729 | } | |||
8730 | } | |||
8731 | ||||
8732 | return {}; | |||
8733 | } | |||
8734 | ||||
8735 | /// mergeFunctionParameterTypes - merge two types which appear as function | |||
8736 | /// parameter types | |||
8737 | QualType ASTContext::mergeFunctionParameterTypes(QualType lhs, QualType rhs, | |||
8738 | bool OfBlockPointer, | |||
8739 | bool Unqualified) { | |||
8740 | // GNU extension: two types are compatible if they appear as a function | |||
8741 | // argument, one of the types is a transparent union type and the other | |||
8742 | // type is compatible with a union member | |||
8743 | QualType lmerge = mergeTransparentUnionType(lhs, rhs, OfBlockPointer, | |||
8744 | Unqualified); | |||
8745 | if (!lmerge.isNull()) | |||
8746 | return lmerge; | |||
8747 | ||||
8748 | QualType rmerge = mergeTransparentUnionType(rhs, lhs, OfBlockPointer, | |||
8749 | Unqualified); | |||
8750 | if (!rmerge.isNull()) | |||
8751 | return rmerge; | |||
8752 | ||||
8753 | return mergeTypes(lhs, rhs, OfBlockPointer, Unqualified); | |||
8754 | } | |||
8755 | ||||
8756 | QualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs, | |||
8757 | bool OfBlockPointer, | |||
8758 | bool Unqualified) { | |||
8759 | const auto *lbase = lhs->castAs<FunctionType>(); | |||
8760 | const auto *rbase = rhs->castAs<FunctionType>(); | |||
8761 | const auto *lproto = dyn_cast<FunctionProtoType>(lbase); | |||
8762 | const auto *rproto = dyn_cast<FunctionProtoType>(rbase); | |||
8763 | bool allLTypes = true; | |||
8764 | bool allRTypes = true; | |||
8765 | ||||
8766 | // Check return type | |||
8767 | QualType retType; | |||
8768 | if (OfBlockPointer) { | |||
8769 | QualType RHS = rbase->getReturnType(); | |||
8770 | QualType LHS = lbase->getReturnType(); | |||
8771 | bool UnqualifiedResult = Unqualified; | |||
8772 | if (!UnqualifiedResult) | |||
8773 | UnqualifiedResult = (!RHS.hasQualifiers() && LHS.hasQualifiers()); | |||
8774 | retType = mergeTypes(LHS, RHS, true, UnqualifiedResult, true); | |||
8775 | } | |||
8776 | else | |||
8777 | retType = mergeTypes(lbase->getReturnType(), rbase->getReturnType(), false, | |||
8778 | Unqualified); | |||
8779 | if (retType.isNull()) | |||
8780 | return {}; | |||
8781 | ||||
8782 | if (Unqualified) | |||
8783 | retType = retType.getUnqualifiedType(); | |||
8784 | ||||
8785 | CanQualType LRetType = getCanonicalType(lbase->getReturnType()); | |||
8786 | CanQualType RRetType = getCanonicalType(rbase->getReturnType()); | |||
8787 | if (Unqualified) { | |||
8788 | LRetType = LRetType.getUnqualifiedType(); | |||
8789 | RRetType = RRetType.getUnqualifiedType(); | |||
8790 | } | |||
8791 | ||||
8792 | if (getCanonicalType(retType) != LRetType) | |||
8793 | allLTypes = false; | |||
8794 | if (getCanonicalType(retType) != RRetType) | |||
8795 | allRTypes = false; | |||
8796 | ||||
8797 | // FIXME: double check this | |||
8798 | // FIXME: should we error if lbase->getRegParmAttr() != 0 && | |||
8799 | // rbase->getRegParmAttr() != 0 && | |||
8800 | // lbase->getRegParmAttr() != rbase->getRegParmAttr()? | |||
8801 | FunctionType::ExtInfo lbaseInfo = lbase->getExtInfo(); | |||
8802 | FunctionType::ExtInfo rbaseInfo = rbase->getExtInfo(); | |||
8803 | ||||
8804 | // Compatible functions must have compatible calling conventions | |||
8805 | if (lbaseInfo.getCC() != rbaseInfo.getCC()) | |||
8806 | return {}; | |||
8807 | ||||
8808 | // Regparm is part of the calling convention. | |||
8809 | if (lbaseInfo.getHasRegParm() != rbaseInfo.getHasRegParm()) | |||
8810 | return {}; | |||
8811 | if (lbaseInfo.getRegParm() != rbaseInfo.getRegParm()) | |||
8812 | return {}; | |||
8813 | ||||
8814 | if (lbaseInfo.getProducesResult() != rbaseInfo.getProducesResult()) | |||
8815 | return {}; | |||
8816 | if (lbaseInfo.getNoCallerSavedRegs() != rbaseInfo.getNoCallerSavedRegs()) | |||
8817 | return {}; | |||
8818 | if (lbaseInfo.getNoCfCheck() != rbaseInfo.getNoCfCheck()) | |||
8819 | return {}; | |||
8820 | ||||
8821 | // FIXME: some uses, e.g. conditional exprs, really want this to be 'both'. | |||
8822 | bool NoReturn = lbaseInfo.getNoReturn() || rbaseInfo.getNoReturn(); | |||
8823 | ||||
8824 | if (lbaseInfo.getNoReturn() != NoReturn) | |||
8825 | allLTypes = false; | |||
8826 | if (rbaseInfo.getNoReturn() != NoReturn) | |||
8827 | allRTypes = false; | |||
8828 | ||||
8829 | FunctionType::ExtInfo einfo = lbaseInfo.withNoReturn(NoReturn); | |||
8830 | ||||
8831 | if (lproto && rproto) { // two C99 style function prototypes | |||
8832 | assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() &&((!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec () && "C++ shouldn't be here") ? static_cast<void> (0) : __assert_fail ("!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && \"C++ shouldn't be here\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8833, __PRETTY_FUNCTION__)) | |||
8833 | "C++ shouldn't be here")((!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec () && "C++ shouldn't be here") ? static_cast<void> (0) : __assert_fail ("!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && \"C++ shouldn't be here\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8833, __PRETTY_FUNCTION__)); | |||
8834 | // Compatible functions must have the same number of parameters | |||
8835 | if (lproto->getNumParams() != rproto->getNumParams()) | |||
8836 | return {}; | |||
8837 | ||||
8838 | // Variadic and non-variadic functions aren't compatible | |||
8839 | if (lproto->isVariadic() != rproto->isVariadic()) | |||
8840 | return {}; | |||
8841 | ||||
8842 | if (lproto->getMethodQuals() != rproto->getMethodQuals()) | |||
8843 | return {}; | |||
8844 | ||||
8845 | SmallVector<FunctionProtoType::ExtParameterInfo, 4> newParamInfos; | |||
8846 | bool canUseLeft, canUseRight; | |||
8847 | if (!mergeExtParameterInfo(lproto, rproto, canUseLeft, canUseRight, | |||
8848 | newParamInfos)) | |||
8849 | return {}; | |||
8850 | ||||
8851 | if (!canUseLeft) | |||
8852 | allLTypes = false; | |||
8853 | if (!canUseRight) | |||
8854 | allRTypes = false; | |||
8855 | ||||
8856 | // Check parameter type compatibility | |||
8857 | SmallVector<QualType, 10> types; | |||
8858 | for (unsigned i = 0, n = lproto->getNumParams(); i < n; i++) { | |||
8859 | QualType lParamType = lproto->getParamType(i).getUnqualifiedType(); | |||
8860 | QualType rParamType = rproto->getParamType(i).getUnqualifiedType(); | |||
8861 | QualType paramType = mergeFunctionParameterTypes( | |||
8862 | lParamType, rParamType, OfBlockPointer, Unqualified); | |||
8863 | if (paramType.isNull()) | |||
8864 | return {}; | |||
8865 | ||||
8866 | if (Unqualified) | |||
8867 | paramType = paramType.getUnqualifiedType(); | |||
8868 | ||||
8869 | types.push_back(paramType); | |||
8870 | if (Unqualified) { | |||
8871 | lParamType = lParamType.getUnqualifiedType(); | |||
8872 | rParamType = rParamType.getUnqualifiedType(); | |||
8873 | } | |||
8874 | ||||
8875 | if (getCanonicalType(paramType) != getCanonicalType(lParamType)) | |||
8876 | allLTypes = false; | |||
8877 | if (getCanonicalType(paramType) != getCanonicalType(rParamType)) | |||
8878 | allRTypes = false; | |||
8879 | } | |||
8880 | ||||
8881 | if (allLTypes) return lhs; | |||
8882 | if (allRTypes) return rhs; | |||
8883 | ||||
8884 | FunctionProtoType::ExtProtoInfo EPI = lproto->getExtProtoInfo(); | |||
8885 | EPI.ExtInfo = einfo; | |||
8886 | EPI.ExtParameterInfos = | |||
8887 | newParamInfos.empty() ? nullptr : newParamInfos.data(); | |||
8888 | return getFunctionType(retType, types, EPI); | |||
8889 | } | |||
8890 | ||||
8891 | if (lproto) allRTypes = false; | |||
8892 | if (rproto) allLTypes = false; | |||
8893 | ||||
8894 | const FunctionProtoType *proto = lproto ? lproto : rproto; | |||
8895 | if (proto) { | |||
8896 | assert(!proto->hasExceptionSpec() && "C++ shouldn't be here")((!proto->hasExceptionSpec() && "C++ shouldn't be here" ) ? static_cast<void> (0) : __assert_fail ("!proto->hasExceptionSpec() && \"C++ shouldn't be here\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8896, __PRETTY_FUNCTION__)); | |||
8897 | if (proto->isVariadic()) | |||
8898 | return {}; | |||
8899 | // Check that the types are compatible with the types that | |||
8900 | // would result from default argument promotions (C99 6.7.5.3p15). | |||
8901 | // The only types actually affected are promotable integer | |||
8902 | // types and floats, which would be passed as a different | |||
8903 | // type depending on whether the prototype is visible. | |||
8904 | for (unsigned i = 0, n = proto->getNumParams(); i < n; ++i) { | |||
8905 | QualType paramTy = proto->getParamType(i); | |||
8906 | ||||
8907 | // Look at the converted type of enum types, since that is the type used | |||
8908 | // to pass enum values. | |||
8909 | if (const auto *Enum = paramTy->getAs<EnumType>()) { | |||
8910 | paramTy = Enum->getDecl()->getIntegerType(); | |||
8911 | if (paramTy.isNull()) | |||
8912 | return {}; | |||
8913 | } | |||
8914 | ||||
8915 | if (paramTy->isPromotableIntegerType() || | |||
8916 | getCanonicalType(paramTy).getUnqualifiedType() == FloatTy) | |||
8917 | return {}; | |||
8918 | } | |||
8919 | ||||
8920 | if (allLTypes) return lhs; | |||
8921 | if (allRTypes) return rhs; | |||
8922 | ||||
8923 | FunctionProtoType::ExtProtoInfo EPI = proto->getExtProtoInfo(); | |||
8924 | EPI.ExtInfo = einfo; | |||
8925 | return getFunctionType(retType, proto->getParamTypes(), EPI); | |||
8926 | } | |||
8927 | ||||
8928 | if (allLTypes) return lhs; | |||
8929 | if (allRTypes) return rhs; | |||
8930 | return getFunctionNoProtoType(retType, einfo); | |||
8931 | } | |||
8932 | ||||
8933 | /// Given that we have an enum type and a non-enum type, try to merge them. | |||
8934 | static QualType mergeEnumWithInteger(ASTContext &Context, const EnumType *ET, | |||
8935 | QualType other, bool isBlockReturnType) { | |||
8936 | // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, | |||
8937 | // a signed integer type, or an unsigned integer type. | |||
8938 | // Compatibility is based on the underlying type, not the promotion | |||
8939 | // type. | |||
8940 | QualType underlyingType = ET->getDecl()->getIntegerType(); | |||
8941 | if (underlyingType.isNull()) | |||
8942 | return {}; | |||
8943 | if (Context.hasSameType(underlyingType, other)) | |||
8944 | return other; | |||
8945 | ||||
8946 | // In block return types, we're more permissive and accept any | |||
8947 | // integral type of the same size. | |||
8948 | if (isBlockReturnType && other->isIntegerType() && | |||
8949 | Context.getTypeSize(underlyingType) == Context.getTypeSize(other)) | |||
8950 | return other; | |||
8951 | ||||
8952 | return {}; | |||
8953 | } | |||
8954 | ||||
8955 | QualType ASTContext::mergeTypes(QualType LHS, QualType RHS, | |||
8956 | bool OfBlockPointer, | |||
8957 | bool Unqualified, bool BlockReturnType) { | |||
8958 | // C++ [expr]: If an expression initially has the type "reference to T", the | |||
8959 | // type is adjusted to "T" prior to any further analysis, the expression | |||
8960 | // designates the object or function denoted by the reference, and the | |||
8961 | // expression is an lvalue unless the reference is an rvalue reference and | |||
8962 | // the expression is a function call (possibly inside parentheses). | |||
8963 | assert(!LHS->getAs<ReferenceType>() && "LHS is a reference type?")((!LHS->getAs<ReferenceType>() && "LHS is a reference type?" ) ? static_cast<void> (0) : __assert_fail ("!LHS->getAs<ReferenceType>() && \"LHS is a reference type?\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8963, __PRETTY_FUNCTION__)); | |||
8964 | assert(!RHS->getAs<ReferenceType>() && "RHS is a reference type?")((!RHS->getAs<ReferenceType>() && "RHS is a reference type?" ) ? static_cast<void> (0) : __assert_fail ("!RHS->getAs<ReferenceType>() && \"RHS is a reference type?\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8964, __PRETTY_FUNCTION__)); | |||
8965 | ||||
8966 | if (Unqualified) { | |||
8967 | LHS = LHS.getUnqualifiedType(); | |||
8968 | RHS = RHS.getUnqualifiedType(); | |||
8969 | } | |||
8970 | ||||
8971 | QualType LHSCan = getCanonicalType(LHS), | |||
8972 | RHSCan = getCanonicalType(RHS); | |||
8973 | ||||
8974 | // If two types are identical, they are compatible. | |||
8975 | if (LHSCan == RHSCan) | |||
8976 | return LHS; | |||
8977 | ||||
8978 | // If the qualifiers are different, the types aren't compatible... mostly. | |||
8979 | Qualifiers LQuals = LHSCan.getLocalQualifiers(); | |||
8980 | Qualifiers RQuals = RHSCan.getLocalQualifiers(); | |||
8981 | if (LQuals != RQuals) { | |||
8982 | // If any of these qualifiers are different, we have a type | |||
8983 | // mismatch. | |||
8984 | if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || | |||
8985 | LQuals.getAddressSpace() != RQuals.getAddressSpace() || | |||
8986 | LQuals.getObjCLifetime() != RQuals.getObjCLifetime() || | |||
8987 | LQuals.hasUnaligned() != RQuals.hasUnaligned()) | |||
8988 | return {}; | |||
8989 | ||||
8990 | // Exactly one GC qualifier difference is allowed: __strong is | |||
8991 | // okay if the other type has no GC qualifier but is an Objective | |||
8992 | // C object pointer (i.e. implicitly strong by default). We fix | |||
8993 | // this by pretending that the unqualified type was actually | |||
8994 | // qualified __strong. | |||
8995 | Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); | |||
8996 | Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); | |||
8997 | assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements")(((GC_L != GC_R) && "unequal qualifier sets had only equal elements" ) ? static_cast<void> (0) : __assert_fail ("(GC_L != GC_R) && \"unequal qualifier sets had only equal elements\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 8997, __PRETTY_FUNCTION__)); | |||
8998 | ||||
8999 | if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) | |||
9000 | return {}; | |||
9001 | ||||
9002 | if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { | |||
9003 | return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); | |||
9004 | } | |||
9005 | if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { | |||
9006 | return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); | |||
9007 | } | |||
9008 | return {}; | |||
9009 | } | |||
9010 | ||||
9011 | // Okay, qualifiers are equal. | |||
9012 | ||||
9013 | Type::TypeClass LHSClass = LHSCan->getTypeClass(); | |||
9014 | Type::TypeClass RHSClass = RHSCan->getTypeClass(); | |||
9015 | ||||
9016 | // We want to consider the two function types to be the same for these | |||
9017 | // comparisons, just force one to the other. | |||
9018 | if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; | |||
9019 | if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; | |||
9020 | ||||
9021 | // Same as above for arrays | |||
9022 | if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) | |||
9023 | LHSClass = Type::ConstantArray; | |||
9024 | if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) | |||
9025 | RHSClass = Type::ConstantArray; | |||
9026 | ||||
9027 | // ObjCInterfaces are just specialized ObjCObjects. | |||
9028 | if (LHSClass == Type::ObjCInterface) LHSClass = Type::ObjCObject; | |||
9029 | if (RHSClass == Type::ObjCInterface) RHSClass = Type::ObjCObject; | |||
9030 | ||||
9031 | // Canonicalize ExtVector -> Vector. | |||
9032 | if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; | |||
9033 | if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; | |||
9034 | ||||
9035 | // If the canonical type classes don't match. | |||
9036 | if (LHSClass != RHSClass) { | |||
9037 | // Note that we only have special rules for turning block enum | |||
9038 | // returns into block int returns, not vice-versa. | |||
9039 | if (const auto *ETy = LHS->getAs<EnumType>()) { | |||
9040 | return mergeEnumWithInteger(*this, ETy, RHS, false); | |||
9041 | } | |||
9042 | if (const EnumType* ETy = RHS->getAs<EnumType>()) { | |||
9043 | return mergeEnumWithInteger(*this, ETy, LHS, BlockReturnType); | |||
9044 | } | |||
9045 | // allow block pointer type to match an 'id' type. | |||
9046 | if (OfBlockPointer && !BlockReturnType) { | |||
9047 | if (LHS->isObjCIdType() && RHS->isBlockPointerType()) | |||
9048 | return LHS; | |||
9049 | if (RHS->isObjCIdType() && LHS->isBlockPointerType()) | |||
9050 | return RHS; | |||
9051 | } | |||
9052 | ||||
9053 | return {}; | |||
9054 | } | |||
9055 | ||||
9056 | // The canonical type classes match. | |||
9057 | switch (LHSClass) { | |||
9058 | #define TYPE(Class, Base) | |||
9059 | #define ABSTRACT_TYPE(Class, Base) | |||
9060 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
9061 | #define NON_CANONICAL_TYPE(Class, Base) case Type::Class: | |||
9062 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
9063 | #include "clang/AST/TypeNodes.inc" | |||
9064 | llvm_unreachable("Non-canonical and dependent types shouldn't get here")::llvm::llvm_unreachable_internal("Non-canonical and dependent types shouldn't get here" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9064); | |||
9065 | ||||
9066 | case Type::Auto: | |||
9067 | case Type::DeducedTemplateSpecialization: | |||
9068 | case Type::LValueReference: | |||
9069 | case Type::RValueReference: | |||
9070 | case Type::MemberPointer: | |||
9071 | llvm_unreachable("C++ should never be in mergeTypes")::llvm::llvm_unreachable_internal("C++ should never be in mergeTypes" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9071); | |||
9072 | ||||
9073 | case Type::ObjCInterface: | |||
9074 | case Type::IncompleteArray: | |||
9075 | case Type::VariableArray: | |||
9076 | case Type::FunctionProto: | |||
9077 | case Type::ExtVector: | |||
9078 | llvm_unreachable("Types are eliminated above")::llvm::llvm_unreachable_internal("Types are eliminated above" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9078); | |||
9079 | ||||
9080 | case Type::Pointer: | |||
9081 | { | |||
9082 | // Merge two pointer types, while trying to preserve typedef info | |||
9083 | QualType LHSPointee = LHS->castAs<PointerType>()->getPointeeType(); | |||
9084 | QualType RHSPointee = RHS->castAs<PointerType>()->getPointeeType(); | |||
9085 | if (Unqualified) { | |||
9086 | LHSPointee = LHSPointee.getUnqualifiedType(); | |||
9087 | RHSPointee = RHSPointee.getUnqualifiedType(); | |||
9088 | } | |||
9089 | QualType ResultType = mergeTypes(LHSPointee, RHSPointee, false, | |||
9090 | Unqualified); | |||
9091 | if (ResultType.isNull()) | |||
9092 | return {}; | |||
9093 | if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) | |||
9094 | return LHS; | |||
9095 | if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) | |||
9096 | return RHS; | |||
9097 | return getPointerType(ResultType); | |||
9098 | } | |||
9099 | case Type::BlockPointer: | |||
9100 | { | |||
9101 | // Merge two block pointer types, while trying to preserve typedef info | |||
9102 | QualType LHSPointee = LHS->castAs<BlockPointerType>()->getPointeeType(); | |||
9103 | QualType RHSPointee = RHS->castAs<BlockPointerType>()->getPointeeType(); | |||
9104 | if (Unqualified) { | |||
9105 | LHSPointee = LHSPointee.getUnqualifiedType(); | |||
9106 | RHSPointee = RHSPointee.getUnqualifiedType(); | |||
9107 | } | |||
9108 | if (getLangOpts().OpenCL) { | |||
9109 | Qualifiers LHSPteeQual = LHSPointee.getQualifiers(); | |||
9110 | Qualifiers RHSPteeQual = RHSPointee.getQualifiers(); | |||
9111 | // Blocks can't be an expression in a ternary operator (OpenCL v2.0 | |||
9112 | // 6.12.5) thus the following check is asymmetric. | |||
9113 | if (!LHSPteeQual.isAddressSpaceSupersetOf(RHSPteeQual)) | |||
9114 | return {}; | |||
9115 | LHSPteeQual.removeAddressSpace(); | |||
9116 | RHSPteeQual.removeAddressSpace(); | |||
9117 | LHSPointee = | |||
9118 | QualType(LHSPointee.getTypePtr(), LHSPteeQual.getAsOpaqueValue()); | |||
9119 | RHSPointee = | |||
9120 | QualType(RHSPointee.getTypePtr(), RHSPteeQual.getAsOpaqueValue()); | |||
9121 | } | |||
9122 | QualType ResultType = mergeTypes(LHSPointee, RHSPointee, OfBlockPointer, | |||
9123 | Unqualified); | |||
9124 | if (ResultType.isNull()) | |||
9125 | return {}; | |||
9126 | if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) | |||
9127 | return LHS; | |||
9128 | if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) | |||
9129 | return RHS; | |||
9130 | return getBlockPointerType(ResultType); | |||
9131 | } | |||
9132 | case Type::Atomic: | |||
9133 | { | |||
9134 | // Merge two pointer types, while trying to preserve typedef info | |||
9135 | QualType LHSValue = LHS->castAs<AtomicType>()->getValueType(); | |||
9136 | QualType RHSValue = RHS->castAs<AtomicType>()->getValueType(); | |||
9137 | if (Unqualified) { | |||
9138 | LHSValue = LHSValue.getUnqualifiedType(); | |||
9139 | RHSValue = RHSValue.getUnqualifiedType(); | |||
9140 | } | |||
9141 | QualType ResultType = mergeTypes(LHSValue, RHSValue, false, | |||
9142 | Unqualified); | |||
9143 | if (ResultType.isNull()) | |||
9144 | return {}; | |||
9145 | if (getCanonicalType(LHSValue) == getCanonicalType(ResultType)) | |||
9146 | return LHS; | |||
9147 | if (getCanonicalType(RHSValue) == getCanonicalType(ResultType)) | |||
9148 | return RHS; | |||
9149 | return getAtomicType(ResultType); | |||
9150 | } | |||
9151 | case Type::ConstantArray: | |||
9152 | { | |||
9153 | const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); | |||
9154 | const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); | |||
9155 | if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) | |||
9156 | return {}; | |||
9157 | ||||
9158 | QualType LHSElem = getAsArrayType(LHS)->getElementType(); | |||
9159 | QualType RHSElem = getAsArrayType(RHS)->getElementType(); | |||
9160 | if (Unqualified) { | |||
9161 | LHSElem = LHSElem.getUnqualifiedType(); | |||
9162 | RHSElem = RHSElem.getUnqualifiedType(); | |||
9163 | } | |||
9164 | ||||
9165 | QualType ResultType = mergeTypes(LHSElem, RHSElem, false, Unqualified); | |||
9166 | if (ResultType.isNull()) | |||
9167 | return {}; | |||
9168 | ||||
9169 | const VariableArrayType* LVAT = getAsVariableArrayType(LHS); | |||
9170 | const VariableArrayType* RVAT = getAsVariableArrayType(RHS); | |||
9171 | ||||
9172 | // If either side is a variable array, and both are complete, check whether | |||
9173 | // the current dimension is definite. | |||
9174 | if (LVAT || RVAT) { | |||
9175 | auto SizeFetch = [this](const VariableArrayType* VAT, | |||
9176 | const ConstantArrayType* CAT) | |||
9177 | -> std::pair<bool,llvm::APInt> { | |||
9178 | if (VAT) { | |||
9179 | llvm::APSInt TheInt; | |||
9180 | Expr *E = VAT->getSizeExpr(); | |||
9181 | if (E && E->isIntegerConstantExpr(TheInt, *this)) | |||
9182 | return std::make_pair(true, TheInt); | |||
9183 | else | |||
9184 | return std::make_pair(false, TheInt); | |||
9185 | } else if (CAT) { | |||
9186 | return std::make_pair(true, CAT->getSize()); | |||
9187 | } else { | |||
9188 | return std::make_pair(false, llvm::APInt()); | |||
9189 | } | |||
9190 | }; | |||
9191 | ||||
9192 | bool HaveLSize, HaveRSize; | |||
9193 | llvm::APInt LSize, RSize; | |||
9194 | std::tie(HaveLSize, LSize) = SizeFetch(LVAT, LCAT); | |||
9195 | std::tie(HaveRSize, RSize) = SizeFetch(RVAT, RCAT); | |||
9196 | if (HaveLSize && HaveRSize && !llvm::APInt::isSameValue(LSize, RSize)) | |||
9197 | return {}; // Definite, but unequal, array dimension | |||
9198 | } | |||
9199 | ||||
9200 | if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) | |||
9201 | return LHS; | |||
9202 | if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) | |||
9203 | return RHS; | |||
9204 | if (LCAT) | |||
9205 | return getConstantArrayType(ResultType, LCAT->getSize(), | |||
9206 | LCAT->getSizeExpr(), | |||
9207 | ArrayType::ArraySizeModifier(), 0); | |||
9208 | if (RCAT) | |||
9209 | return getConstantArrayType(ResultType, RCAT->getSize(), | |||
9210 | RCAT->getSizeExpr(), | |||
9211 | ArrayType::ArraySizeModifier(), 0); | |||
9212 | if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) | |||
9213 | return LHS; | |||
9214 | if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) | |||
9215 | return RHS; | |||
9216 | if (LVAT) { | |||
9217 | // FIXME: This isn't correct! But tricky to implement because | |||
9218 | // the array's size has to be the size of LHS, but the type | |||
9219 | // has to be different. | |||
9220 | return LHS; | |||
9221 | } | |||
9222 | if (RVAT) { | |||
9223 | // FIXME: This isn't correct! But tricky to implement because | |||
9224 | // the array's size has to be the size of RHS, but the type | |||
9225 | // has to be different. | |||
9226 | return RHS; | |||
9227 | } | |||
9228 | if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; | |||
9229 | if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; | |||
9230 | return getIncompleteArrayType(ResultType, | |||
9231 | ArrayType::ArraySizeModifier(), 0); | |||
9232 | } | |||
9233 | case Type::FunctionNoProto: | |||
9234 | return mergeFunctionTypes(LHS, RHS, OfBlockPointer, Unqualified); | |||
9235 | case Type::Record: | |||
9236 | case Type::Enum: | |||
9237 | return {}; | |||
9238 | case Type::Builtin: | |||
9239 | // Only exactly equal builtin types are compatible, which is tested above. | |||
9240 | return {}; | |||
9241 | case Type::Complex: | |||
9242 | // Distinct complex types are incompatible. | |||
9243 | return {}; | |||
9244 | case Type::Vector: | |||
9245 | // FIXME: The merged type should be an ExtVector! | |||
9246 | if (areCompatVectorTypes(LHSCan->castAs<VectorType>(), | |||
9247 | RHSCan->castAs<VectorType>())) | |||
9248 | return LHS; | |||
9249 | return {}; | |||
9250 | case Type::ObjCObject: { | |||
9251 | // Check if the types are assignment compatible. | |||
9252 | // FIXME: This should be type compatibility, e.g. whether | |||
9253 | // "LHS x; RHS x;" at global scope is legal. | |||
9254 | if (canAssignObjCInterfaces(LHS->castAs<ObjCObjectType>(), | |||
9255 | RHS->castAs<ObjCObjectType>())) | |||
9256 | return LHS; | |||
9257 | return {}; | |||
9258 | } | |||
9259 | case Type::ObjCObjectPointer: | |||
9260 | if (OfBlockPointer) { | |||
9261 | if (canAssignObjCInterfacesInBlockPointer( | |||
9262 | LHS->castAs<ObjCObjectPointerType>(), | |||
9263 | RHS->castAs<ObjCObjectPointerType>(), BlockReturnType)) | |||
9264 | return LHS; | |||
9265 | return {}; | |||
9266 | } | |||
9267 | if (canAssignObjCInterfaces(LHS->castAs<ObjCObjectPointerType>(), | |||
9268 | RHS->castAs<ObjCObjectPointerType>())) | |||
9269 | return LHS; | |||
9270 | return {}; | |||
9271 | case Type::Pipe: | |||
9272 | assert(LHS != RHS &&((LHS != RHS && "Equivalent pipe types should have already been handled!" ) ? static_cast<void> (0) : __assert_fail ("LHS != RHS && \"Equivalent pipe types should have already been handled!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9273, __PRETTY_FUNCTION__)) | |||
9273 | "Equivalent pipe types should have already been handled!")((LHS != RHS && "Equivalent pipe types should have already been handled!" ) ? static_cast<void> (0) : __assert_fail ("LHS != RHS && \"Equivalent pipe types should have already been handled!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9273, __PRETTY_FUNCTION__)); | |||
9274 | return {}; | |||
9275 | } | |||
9276 | ||||
9277 | llvm_unreachable("Invalid Type::Class!")::llvm::llvm_unreachable_internal("Invalid Type::Class!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9277); | |||
9278 | } | |||
9279 | ||||
9280 | bool ASTContext::mergeExtParameterInfo( | |||
9281 | const FunctionProtoType *FirstFnType, const FunctionProtoType *SecondFnType, | |||
9282 | bool &CanUseFirst, bool &CanUseSecond, | |||
9283 | SmallVectorImpl<FunctionProtoType::ExtParameterInfo> &NewParamInfos) { | |||
9284 | assert(NewParamInfos.empty() && "param info list not empty")((NewParamInfos.empty() && "param info list not empty" ) ? static_cast<void> (0) : __assert_fail ("NewParamInfos.empty() && \"param info list not empty\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9284, __PRETTY_FUNCTION__)); | |||
9285 | CanUseFirst = CanUseSecond = true; | |||
9286 | bool FirstHasInfo = FirstFnType->hasExtParameterInfos(); | |||
9287 | bool SecondHasInfo = SecondFnType->hasExtParameterInfos(); | |||
9288 | ||||
9289 | // Fast path: if the first type doesn't have ext parameter infos, | |||
9290 | // we match if and only if the second type also doesn't have them. | |||
9291 | if (!FirstHasInfo && !SecondHasInfo) | |||
9292 | return true; | |||
9293 | ||||
9294 | bool NeedParamInfo = false; | |||
9295 | size_t E = FirstHasInfo ? FirstFnType->getExtParameterInfos().size() | |||
9296 | : SecondFnType->getExtParameterInfos().size(); | |||
9297 | ||||
9298 | for (size_t I = 0; I < E; ++I) { | |||
9299 | FunctionProtoType::ExtParameterInfo FirstParam, SecondParam; | |||
9300 | if (FirstHasInfo) | |||
9301 | FirstParam = FirstFnType->getExtParameterInfo(I); | |||
9302 | if (SecondHasInfo) | |||
9303 | SecondParam = SecondFnType->getExtParameterInfo(I); | |||
9304 | ||||
9305 | // Cannot merge unless everything except the noescape flag matches. | |||
9306 | if (FirstParam.withIsNoEscape(false) != SecondParam.withIsNoEscape(false)) | |||
9307 | return false; | |||
9308 | ||||
9309 | bool FirstNoEscape = FirstParam.isNoEscape(); | |||
9310 | bool SecondNoEscape = SecondParam.isNoEscape(); | |||
9311 | bool IsNoEscape = FirstNoEscape && SecondNoEscape; | |||
9312 | NewParamInfos.push_back(FirstParam.withIsNoEscape(IsNoEscape)); | |||
9313 | if (NewParamInfos.back().getOpaqueValue()) | |||
9314 | NeedParamInfo = true; | |||
9315 | if (FirstNoEscape != IsNoEscape) | |||
9316 | CanUseFirst = false; | |||
9317 | if (SecondNoEscape != IsNoEscape) | |||
9318 | CanUseSecond = false; | |||
9319 | } | |||
9320 | ||||
9321 | if (!NeedParamInfo) | |||
9322 | NewParamInfos.clear(); | |||
9323 | ||||
9324 | return true; | |||
9325 | } | |||
9326 | ||||
9327 | void ASTContext::ResetObjCLayout(const ObjCContainerDecl *CD) { | |||
9328 | ObjCLayouts[CD] = nullptr; | |||
9329 | } | |||
9330 | ||||
9331 | /// mergeObjCGCQualifiers - This routine merges ObjC's GC attribute of 'LHS' and | |||
9332 | /// 'RHS' attributes and returns the merged version; including for function | |||
9333 | /// return types. | |||
9334 | QualType ASTContext::mergeObjCGCQualifiers(QualType LHS, QualType RHS) { | |||
9335 | QualType LHSCan = getCanonicalType(LHS), | |||
9336 | RHSCan = getCanonicalType(RHS); | |||
9337 | // If two types are identical, they are compatible. | |||
9338 | if (LHSCan == RHSCan) | |||
9339 | return LHS; | |||
9340 | if (RHSCan->isFunctionType()) { | |||
9341 | if (!LHSCan->isFunctionType()) | |||
9342 | return {}; | |||
9343 | QualType OldReturnType = | |||
9344 | cast<FunctionType>(RHSCan.getTypePtr())->getReturnType(); | |||
9345 | QualType NewReturnType = | |||
9346 | cast<FunctionType>(LHSCan.getTypePtr())->getReturnType(); | |||
9347 | QualType ResReturnType = | |||
9348 | mergeObjCGCQualifiers(NewReturnType, OldReturnType); | |||
9349 | if (ResReturnType.isNull()) | |||
9350 | return {}; | |||
9351 | if (ResReturnType == NewReturnType || ResReturnType == OldReturnType) { | |||
9352 | // id foo(); ... __strong id foo(); or: __strong id foo(); ... id foo(); | |||
9353 | // In either case, use OldReturnType to build the new function type. | |||
9354 | const auto *F = LHS->castAs<FunctionType>(); | |||
9355 | if (const auto *FPT = cast<FunctionProtoType>(F)) { | |||
9356 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
9357 | EPI.ExtInfo = getFunctionExtInfo(LHS); | |||
9358 | QualType ResultType = | |||
9359 | getFunctionType(OldReturnType, FPT->getParamTypes(), EPI); | |||
9360 | return ResultType; | |||
9361 | } | |||
9362 | } | |||
9363 | return {}; | |||
9364 | } | |||
9365 | ||||
9366 | // If the qualifiers are different, the types can still be merged. | |||
9367 | Qualifiers LQuals = LHSCan.getLocalQualifiers(); | |||
9368 | Qualifiers RQuals = RHSCan.getLocalQualifiers(); | |||
9369 | if (LQuals != RQuals) { | |||
9370 | // If any of these qualifiers are different, we have a type mismatch. | |||
9371 | if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || | |||
9372 | LQuals.getAddressSpace() != RQuals.getAddressSpace()) | |||
9373 | return {}; | |||
9374 | ||||
9375 | // Exactly one GC qualifier difference is allowed: __strong is | |||
9376 | // okay if the other type has no GC qualifier but is an Objective | |||
9377 | // C object pointer (i.e. implicitly strong by default). We fix | |||
9378 | // this by pretending that the unqualified type was actually | |||
9379 | // qualified __strong. | |||
9380 | Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); | |||
9381 | Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); | |||
9382 | assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements")(((GC_L != GC_R) && "unequal qualifier sets had only equal elements" ) ? static_cast<void> (0) : __assert_fail ("(GC_L != GC_R) && \"unequal qualifier sets had only equal elements\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9382, __PRETTY_FUNCTION__)); | |||
9383 | ||||
9384 | if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) | |||
9385 | return {}; | |||
9386 | ||||
9387 | if (GC_L == Qualifiers::Strong) | |||
9388 | return LHS; | |||
9389 | if (GC_R == Qualifiers::Strong) | |||
9390 | return RHS; | |||
9391 | return {}; | |||
9392 | } | |||
9393 | ||||
9394 | if (LHSCan->isObjCObjectPointerType() && RHSCan->isObjCObjectPointerType()) { | |||
9395 | QualType LHSBaseQT = LHS->castAs<ObjCObjectPointerType>()->getPointeeType(); | |||
9396 | QualType RHSBaseQT = RHS->castAs<ObjCObjectPointerType>()->getPointeeType(); | |||
9397 | QualType ResQT = mergeObjCGCQualifiers(LHSBaseQT, RHSBaseQT); | |||
9398 | if (ResQT == LHSBaseQT) | |||
9399 | return LHS; | |||
9400 | if (ResQT == RHSBaseQT) | |||
9401 | return RHS; | |||
9402 | } | |||
9403 | return {}; | |||
9404 | } | |||
9405 | ||||
9406 | //===----------------------------------------------------------------------===// | |||
9407 | // Integer Predicates | |||
9408 | //===----------------------------------------------------------------------===// | |||
9409 | ||||
9410 | unsigned ASTContext::getIntWidth(QualType T) const { | |||
9411 | if (const auto *ET = T->getAs<EnumType>()) | |||
9412 | T = ET->getDecl()->getIntegerType(); | |||
9413 | if (T->isBooleanType()) | |||
9414 | return 1; | |||
9415 | // For builtin types, just use the standard type sizing method | |||
9416 | return (unsigned)getTypeSize(T); | |||
9417 | } | |||
9418 | ||||
9419 | QualType ASTContext::getCorrespondingUnsignedType(QualType T) const { | |||
9420 | assert((T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType()) &&(((T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType ()) && "Unexpected type") ? static_cast<void> ( 0) : __assert_fail ("(T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType()) && \"Unexpected type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9421, __PRETTY_FUNCTION__)) | |||
9421 | "Unexpected type")(((T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType ()) && "Unexpected type") ? static_cast<void> ( 0) : __assert_fail ("(T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType()) && \"Unexpected type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9421, __PRETTY_FUNCTION__)); | |||
9422 | ||||
9423 | // Turn <4 x signed int> -> <4 x unsigned int> | |||
9424 | if (const auto *VTy = T->getAs<VectorType>()) | |||
9425 | return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), | |||
9426 | VTy->getNumElements(), VTy->getVectorKind()); | |||
9427 | ||||
9428 | // For enums, we return the unsigned version of the base type. | |||
9429 | if (const auto *ETy = T->getAs<EnumType>()) | |||
9430 | T = ETy->getDecl()->getIntegerType(); | |||
9431 | ||||
9432 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
9433 | case BuiltinType::Char_S: | |||
9434 | case BuiltinType::SChar: | |||
9435 | return UnsignedCharTy; | |||
9436 | case BuiltinType::Short: | |||
9437 | return UnsignedShortTy; | |||
9438 | case BuiltinType::Int: | |||
9439 | return UnsignedIntTy; | |||
9440 | case BuiltinType::Long: | |||
9441 | return UnsignedLongTy; | |||
9442 | case BuiltinType::LongLong: | |||
9443 | return UnsignedLongLongTy; | |||
9444 | case BuiltinType::Int128: | |||
9445 | return UnsignedInt128Ty; | |||
9446 | ||||
9447 | case BuiltinType::ShortAccum: | |||
9448 | return UnsignedShortAccumTy; | |||
9449 | case BuiltinType::Accum: | |||
9450 | return UnsignedAccumTy; | |||
9451 | case BuiltinType::LongAccum: | |||
9452 | return UnsignedLongAccumTy; | |||
9453 | case BuiltinType::SatShortAccum: | |||
9454 | return SatUnsignedShortAccumTy; | |||
9455 | case BuiltinType::SatAccum: | |||
9456 | return SatUnsignedAccumTy; | |||
9457 | case BuiltinType::SatLongAccum: | |||
9458 | return SatUnsignedLongAccumTy; | |||
9459 | case BuiltinType::ShortFract: | |||
9460 | return UnsignedShortFractTy; | |||
9461 | case BuiltinType::Fract: | |||
9462 | return UnsignedFractTy; | |||
9463 | case BuiltinType::LongFract: | |||
9464 | return UnsignedLongFractTy; | |||
9465 | case BuiltinType::SatShortFract: | |||
9466 | return SatUnsignedShortFractTy; | |||
9467 | case BuiltinType::SatFract: | |||
9468 | return SatUnsignedFractTy; | |||
9469 | case BuiltinType::SatLongFract: | |||
9470 | return SatUnsignedLongFractTy; | |||
9471 | default: | |||
9472 | llvm_unreachable("Unexpected signed integer or fixed point type")::llvm::llvm_unreachable_internal("Unexpected signed integer or fixed point type" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9472); | |||
9473 | } | |||
9474 | } | |||
9475 | ||||
9476 | ASTMutationListener::~ASTMutationListener() = default; | |||
9477 | ||||
9478 | void ASTMutationListener::DeducedReturnType(const FunctionDecl *FD, | |||
9479 | QualType ReturnType) {} | |||
9480 | ||||
9481 | //===----------------------------------------------------------------------===// | |||
9482 | // Builtin Type Computation | |||
9483 | //===----------------------------------------------------------------------===// | |||
9484 | ||||
9485 | /// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the | |||
9486 | /// pointer over the consumed characters. This returns the resultant type. If | |||
9487 | /// AllowTypeModifiers is false then modifier like * are not parsed, just basic | |||
9488 | /// types. This allows "v2i*" to be parsed as a pointer to a v2i instead of | |||
9489 | /// a vector of "i*". | |||
9490 | /// | |||
9491 | /// RequiresICE is filled in on return to indicate whether the value is required | |||
9492 | /// to be an Integer Constant Expression. | |||
9493 | static QualType DecodeTypeFromStr(const char *&Str, const ASTContext &Context, | |||
9494 | ASTContext::GetBuiltinTypeError &Error, | |||
9495 | bool &RequiresICE, | |||
9496 | bool AllowTypeModifiers) { | |||
9497 | // Modifiers. | |||
9498 | int HowLong = 0; | |||
9499 | bool Signed = false, Unsigned = false; | |||
9500 | RequiresICE = false; | |||
9501 | ||||
9502 | // Read the prefixed modifiers first. | |||
9503 | bool Done = false; | |||
9504 | #ifndef NDEBUG | |||
9505 | bool IsSpecial = false; | |||
9506 | #endif | |||
9507 | while (!Done) { | |||
9508 | switch (*Str++) { | |||
9509 | default: Done = true; --Str; break; | |||
9510 | case 'I': | |||
9511 | RequiresICE = true; | |||
9512 | break; | |||
9513 | case 'S': | |||
9514 | assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!")((!Unsigned && "Can't use both 'S' and 'U' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("!Unsigned && \"Can't use both 'S' and 'U' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9514, __PRETTY_FUNCTION__)); | |||
9515 | assert(!Signed && "Can't use 'S' modifier multiple times!")((!Signed && "Can't use 'S' modifier multiple times!" ) ? static_cast<void> (0) : __assert_fail ("!Signed && \"Can't use 'S' modifier multiple times!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9515, __PRETTY_FUNCTION__)); | |||
9516 | Signed = true; | |||
9517 | break; | |||
9518 | case 'U': | |||
9519 | assert(!Signed && "Can't use both 'S' and 'U' modifiers!")((!Signed && "Can't use both 'S' and 'U' modifiers!") ? static_cast<void> (0) : __assert_fail ("!Signed && \"Can't use both 'S' and 'U' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9519, __PRETTY_FUNCTION__)); | |||
9520 | assert(!Unsigned && "Can't use 'U' modifier multiple times!")((!Unsigned && "Can't use 'U' modifier multiple times!" ) ? static_cast<void> (0) : __assert_fail ("!Unsigned && \"Can't use 'U' modifier multiple times!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9520, __PRETTY_FUNCTION__)); | |||
9521 | Unsigned = true; | |||
9522 | break; | |||
9523 | case 'L': | |||
9524 | assert(!IsSpecial && "Can't use 'L' with 'W', 'N', 'Z' or 'O' modifiers")((!IsSpecial && "Can't use 'L' with 'W', 'N', 'Z' or 'O' modifiers" ) ? static_cast<void> (0) : __assert_fail ("!IsSpecial && \"Can't use 'L' with 'W', 'N', 'Z' or 'O' modifiers\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9524, __PRETTY_FUNCTION__)); | |||
9525 | assert(HowLong <= 2 && "Can't have LLLL modifier")((HowLong <= 2 && "Can't have LLLL modifier") ? static_cast <void> (0) : __assert_fail ("HowLong <= 2 && \"Can't have LLLL modifier\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9525, __PRETTY_FUNCTION__)); | |||
9526 | ++HowLong; | |||
9527 | break; | |||
9528 | case 'N': | |||
9529 | // 'N' behaves like 'L' for all non LP64 targets and 'int' otherwise. | |||
9530 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")((!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9530, __PRETTY_FUNCTION__)); | |||
9531 | assert(HowLong == 0 && "Can't use both 'L' and 'N' modifiers!")((HowLong == 0 && "Can't use both 'L' and 'N' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'N' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9531, __PRETTY_FUNCTION__)); | |||
9532 | #ifndef NDEBUG | |||
9533 | IsSpecial = true; | |||
9534 | #endif | |||
9535 | if (Context.getTargetInfo().getLongWidth() == 32) | |||
9536 | ++HowLong; | |||
9537 | break; | |||
9538 | case 'W': | |||
9539 | // This modifier represents int64 type. | |||
9540 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")((!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9540, __PRETTY_FUNCTION__)); | |||
9541 | assert(HowLong == 0 && "Can't use both 'L' and 'W' modifiers!")((HowLong == 0 && "Can't use both 'L' and 'W' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'W' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9541, __PRETTY_FUNCTION__)); | |||
9542 | #ifndef NDEBUG | |||
9543 | IsSpecial = true; | |||
9544 | #endif | |||
9545 | switch (Context.getTargetInfo().getInt64Type()) { | |||
9546 | default: | |||
9547 | llvm_unreachable("Unexpected integer type")::llvm::llvm_unreachable_internal("Unexpected integer type", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9547); | |||
9548 | case TargetInfo::SignedLong: | |||
9549 | HowLong = 1; | |||
9550 | break; | |||
9551 | case TargetInfo::SignedLongLong: | |||
9552 | HowLong = 2; | |||
9553 | break; | |||
9554 | } | |||
9555 | break; | |||
9556 | case 'Z': | |||
9557 | // This modifier represents int32 type. | |||
9558 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")((!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9558, __PRETTY_FUNCTION__)); | |||
9559 | assert(HowLong == 0 && "Can't use both 'L' and 'Z' modifiers!")((HowLong == 0 && "Can't use both 'L' and 'Z' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'Z' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9559, __PRETTY_FUNCTION__)); | |||
9560 | #ifndef NDEBUG | |||
9561 | IsSpecial = true; | |||
9562 | #endif | |||
9563 | switch (Context.getTargetInfo().getIntTypeByWidth(32, true)) { | |||
9564 | default: | |||
9565 | llvm_unreachable("Unexpected integer type")::llvm::llvm_unreachable_internal("Unexpected integer type", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9565); | |||
9566 | case TargetInfo::SignedInt: | |||
9567 | HowLong = 0; | |||
9568 | break; | |||
9569 | case TargetInfo::SignedLong: | |||
9570 | HowLong = 1; | |||
9571 | break; | |||
9572 | case TargetInfo::SignedLongLong: | |||
9573 | HowLong = 2; | |||
9574 | break; | |||
9575 | } | |||
9576 | break; | |||
9577 | case 'O': | |||
9578 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")((!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9578, __PRETTY_FUNCTION__)); | |||
9579 | assert(HowLong == 0 && "Can't use both 'L' and 'O' modifiers!")((HowLong == 0 && "Can't use both 'L' and 'O' modifiers!" ) ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'O' modifiers!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9579, __PRETTY_FUNCTION__)); | |||
9580 | #ifndef NDEBUG | |||
9581 | IsSpecial = true; | |||
9582 | #endif | |||
9583 | if (Context.getLangOpts().OpenCL) | |||
9584 | HowLong = 1; | |||
9585 | else | |||
9586 | HowLong = 2; | |||
9587 | break; | |||
9588 | } | |||
9589 | } | |||
9590 | ||||
9591 | QualType Type; | |||
9592 | ||||
9593 | // Read the base type. | |||
9594 | switch (*Str++) { | |||
9595 | default: llvm_unreachable("Unknown builtin type letter!")::llvm::llvm_unreachable_internal("Unknown builtin type letter!" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9595); | |||
9596 | case 'v': | |||
9597 | assert(HowLong == 0 && !Signed && !Unsigned &&((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'v'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'v'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9598, __PRETTY_FUNCTION__)) | |||
9598 | "Bad modifiers used with 'v'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'v'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'v'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9598, __PRETTY_FUNCTION__)); | |||
9599 | Type = Context.VoidTy; | |||
9600 | break; | |||
9601 | case 'h': | |||
9602 | assert(HowLong == 0 && !Signed && !Unsigned &&((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'h'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'h'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9603, __PRETTY_FUNCTION__)) | |||
9603 | "Bad modifiers used with 'h'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'h'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'h'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9603, __PRETTY_FUNCTION__)); | |||
9604 | Type = Context.HalfTy; | |||
9605 | break; | |||
9606 | case 'f': | |||
9607 | assert(HowLong == 0 && !Signed && !Unsigned &&((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'f'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'f'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9608, __PRETTY_FUNCTION__)) | |||
9608 | "Bad modifiers used with 'f'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'f'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'f'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9608, __PRETTY_FUNCTION__)); | |||
9609 | Type = Context.FloatTy; | |||
9610 | break; | |||
9611 | case 'd': | |||
9612 | assert(HowLong < 3 && !Signed && !Unsigned &&((HowLong < 3 && !Signed && !Unsigned && "Bad modifiers used with 'd'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong < 3 && !Signed && !Unsigned && \"Bad modifiers used with 'd'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9613, __PRETTY_FUNCTION__)) | |||
9613 | "Bad modifiers used with 'd'!")((HowLong < 3 && !Signed && !Unsigned && "Bad modifiers used with 'd'!") ? static_cast<void> (0 ) : __assert_fail ("HowLong < 3 && !Signed && !Unsigned && \"Bad modifiers used with 'd'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9613, __PRETTY_FUNCTION__)); | |||
9614 | if (HowLong == 1) | |||
9615 | Type = Context.LongDoubleTy; | |||
9616 | else if (HowLong == 2) | |||
9617 | Type = Context.Float128Ty; | |||
9618 | else | |||
9619 | Type = Context.DoubleTy; | |||
9620 | break; | |||
9621 | case 's': | |||
9622 | assert(HowLong == 0 && "Bad modifiers used with 's'!")((HowLong == 0 && "Bad modifiers used with 's'!") ? static_cast <void> (0) : __assert_fail ("HowLong == 0 && \"Bad modifiers used with 's'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9622, __PRETTY_FUNCTION__)); | |||
9623 | if (Unsigned) | |||
9624 | Type = Context.UnsignedShortTy; | |||
9625 | else | |||
9626 | Type = Context.ShortTy; | |||
9627 | break; | |||
9628 | case 'i': | |||
9629 | if (HowLong == 3) | |||
9630 | Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; | |||
9631 | else if (HowLong == 2) | |||
9632 | Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; | |||
9633 | else if (HowLong == 1) | |||
9634 | Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; | |||
9635 | else | |||
9636 | Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; | |||
9637 | break; | |||
9638 | case 'c': | |||
9639 | assert(HowLong == 0 && "Bad modifiers used with 'c'!")((HowLong == 0 && "Bad modifiers used with 'c'!") ? static_cast <void> (0) : __assert_fail ("HowLong == 0 && \"Bad modifiers used with 'c'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9639, __PRETTY_FUNCTION__)); | |||
9640 | if (Signed) | |||
9641 | Type = Context.SignedCharTy; | |||
9642 | else if (Unsigned) | |||
9643 | Type = Context.UnsignedCharTy; | |||
9644 | else | |||
9645 | Type = Context.CharTy; | |||
9646 | break; | |||
9647 | case 'b': // boolean | |||
9648 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!") ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'b'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9648, __PRETTY_FUNCTION__)); | |||
9649 | Type = Context.BoolTy; | |||
9650 | break; | |||
9651 | case 'z': // size_t. | |||
9652 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!") ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'z'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9652, __PRETTY_FUNCTION__)); | |||
9653 | Type = Context.getSizeType(); | |||
9654 | break; | |||
9655 | case 'w': // wchar_t. | |||
9656 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'w'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'w'!") ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'w'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9656, __PRETTY_FUNCTION__)); | |||
9657 | Type = Context.getWideCharType(); | |||
9658 | break; | |||
9659 | case 'F': | |||
9660 | Type = Context.getCFConstantStringType(); | |||
9661 | break; | |||
9662 | case 'G': | |||
9663 | Type = Context.getObjCIdType(); | |||
9664 | break; | |||
9665 | case 'H': | |||
9666 | Type = Context.getObjCSelType(); | |||
9667 | break; | |||
9668 | case 'M': | |||
9669 | Type = Context.getObjCSuperType(); | |||
9670 | break; | |||
9671 | case 'a': | |||
9672 | Type = Context.getBuiltinVaListType(); | |||
9673 | assert(!Type.isNull() && "builtin va list type not initialized!")((!Type.isNull() && "builtin va list type not initialized!" ) ? static_cast<void> (0) : __assert_fail ("!Type.isNull() && \"builtin va list type not initialized!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9673, __PRETTY_FUNCTION__)); | |||
9674 | break; | |||
9675 | case 'A': | |||
9676 | // This is a "reference" to a va_list; however, what exactly | |||
9677 | // this means depends on how va_list is defined. There are two | |||
9678 | // different kinds of va_list: ones passed by value, and ones | |||
9679 | // passed by reference. An example of a by-value va_list is | |||
9680 | // x86, where va_list is a char*. An example of by-ref va_list | |||
9681 | // is x86-64, where va_list is a __va_list_tag[1]. For x86, | |||
9682 | // we want this argument to be a char*&; for x86-64, we want | |||
9683 | // it to be a __va_list_tag*. | |||
9684 | Type = Context.getBuiltinVaListType(); | |||
9685 | assert(!Type.isNull() && "builtin va list type not initialized!")((!Type.isNull() && "builtin va list type not initialized!" ) ? static_cast<void> (0) : __assert_fail ("!Type.isNull() && \"builtin va list type not initialized!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9685, __PRETTY_FUNCTION__)); | |||
9686 | if (Type->isArrayType()) | |||
9687 | Type = Context.getArrayDecayedType(Type); | |||
9688 | else | |||
9689 | Type = Context.getLValueReferenceType(Type); | |||
9690 | break; | |||
9691 | case 'V': { | |||
9692 | char *End; | |||
9693 | unsigned NumElements = strtoul(Str, &End, 10); | |||
9694 | assert(End != Str && "Missing vector size")((End != Str && "Missing vector size") ? static_cast< void> (0) : __assert_fail ("End != Str && \"Missing vector size\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9694, __PRETTY_FUNCTION__)); | |||
9695 | Str = End; | |||
9696 | ||||
9697 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, | |||
9698 | RequiresICE, false); | |||
9699 | assert(!RequiresICE && "Can't require vector ICE")((!RequiresICE && "Can't require vector ICE") ? static_cast <void> (0) : __assert_fail ("!RequiresICE && \"Can't require vector ICE\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9699, __PRETTY_FUNCTION__)); | |||
9700 | ||||
9701 | // TODO: No way to make AltiVec vectors in builtins yet. | |||
9702 | Type = Context.getVectorType(ElementType, NumElements, | |||
9703 | VectorType::GenericVector); | |||
9704 | break; | |||
9705 | } | |||
9706 | case 'E': { | |||
9707 | char *End; | |||
9708 | ||||
9709 | unsigned NumElements = strtoul(Str, &End, 10); | |||
9710 | assert(End != Str && "Missing vector size")((End != Str && "Missing vector size") ? static_cast< void> (0) : __assert_fail ("End != Str && \"Missing vector size\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9710, __PRETTY_FUNCTION__)); | |||
9711 | ||||
9712 | Str = End; | |||
9713 | ||||
9714 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, RequiresICE, | |||
9715 | false); | |||
9716 | Type = Context.getExtVectorType(ElementType, NumElements); | |||
9717 | break; | |||
9718 | } | |||
9719 | case 'X': { | |||
9720 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, RequiresICE, | |||
9721 | false); | |||
9722 | assert(!RequiresICE && "Can't require complex ICE")((!RequiresICE && "Can't require complex ICE") ? static_cast <void> (0) : __assert_fail ("!RequiresICE && \"Can't require complex ICE\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9722, __PRETTY_FUNCTION__)); | |||
9723 | Type = Context.getComplexType(ElementType); | |||
9724 | break; | |||
9725 | } | |||
9726 | case 'Y': | |||
9727 | Type = Context.getPointerDiffType(); | |||
9728 | break; | |||
9729 | case 'P': | |||
9730 | Type = Context.getFILEType(); | |||
9731 | if (Type.isNull()) { | |||
9732 | Error = ASTContext::GE_Missing_stdio; | |||
9733 | return {}; | |||
9734 | } | |||
9735 | break; | |||
9736 | case 'J': | |||
9737 | if (Signed) | |||
9738 | Type = Context.getsigjmp_bufType(); | |||
9739 | else | |||
9740 | Type = Context.getjmp_bufType(); | |||
9741 | ||||
9742 | if (Type.isNull()) { | |||
9743 | Error = ASTContext::GE_Missing_setjmp; | |||
9744 | return {}; | |||
9745 | } | |||
9746 | break; | |||
9747 | case 'K': | |||
9748 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'K'!")((HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'K'!") ? static_cast<void> (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'K'!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9748, __PRETTY_FUNCTION__)); | |||
9749 | Type = Context.getucontext_tType(); | |||
9750 | ||||
9751 | if (Type.isNull()) { | |||
9752 | Error = ASTContext::GE_Missing_ucontext; | |||
9753 | return {}; | |||
9754 | } | |||
9755 | break; | |||
9756 | case 'p': | |||
9757 | Type = Context.getProcessIDType(); | |||
9758 | break; | |||
9759 | } | |||
9760 | ||||
9761 | // If there are modifiers and if we're allowed to parse them, go for it. | |||
9762 | Done = !AllowTypeModifiers; | |||
9763 | while (!Done) { | |||
9764 | switch (char c = *Str++) { | |||
9765 | default: Done = true; --Str; break; | |||
9766 | case '*': | |||
9767 | case '&': { | |||
9768 | // Both pointers and references can have their pointee types | |||
9769 | // qualified with an address space. | |||
9770 | char *End; | |||
9771 | unsigned AddrSpace = strtoul(Str, &End, 10); | |||
9772 | if (End != Str) { | |||
9773 | // Note AddrSpace == 0 is not the same as an unspecified address space. | |||
9774 | Type = Context.getAddrSpaceQualType( | |||
9775 | Type, | |||
9776 | Context.getLangASForBuiltinAddressSpace(AddrSpace)); | |||
9777 | Str = End; | |||
9778 | } | |||
9779 | if (c == '*') | |||
9780 | Type = Context.getPointerType(Type); | |||
9781 | else | |||
9782 | Type = Context.getLValueReferenceType(Type); | |||
9783 | break; | |||
9784 | } | |||
9785 | // FIXME: There's no way to have a built-in with an rvalue ref arg. | |||
9786 | case 'C': | |||
9787 | Type = Type.withConst(); | |||
9788 | break; | |||
9789 | case 'D': | |||
9790 | Type = Context.getVolatileType(Type); | |||
9791 | break; | |||
9792 | case 'R': | |||
9793 | Type = Type.withRestrict(); | |||
9794 | break; | |||
9795 | } | |||
9796 | } | |||
9797 | ||||
9798 | assert((!RequiresICE || Type->isIntegralOrEnumerationType()) &&(((!RequiresICE || Type->isIntegralOrEnumerationType()) && "Integer constant 'I' type must be an integer") ? static_cast <void> (0) : __assert_fail ("(!RequiresICE || Type->isIntegralOrEnumerationType()) && \"Integer constant 'I' type must be an integer\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9799, __PRETTY_FUNCTION__)) | |||
9799 | "Integer constant 'I' type must be an integer")(((!RequiresICE || Type->isIntegralOrEnumerationType()) && "Integer constant 'I' type must be an integer") ? static_cast <void> (0) : __assert_fail ("(!RequiresICE || Type->isIntegralOrEnumerationType()) && \"Integer constant 'I' type must be an integer\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9799, __PRETTY_FUNCTION__)); | |||
9800 | ||||
9801 | return Type; | |||
9802 | } | |||
9803 | ||||
9804 | /// GetBuiltinType - Return the type for the specified builtin. | |||
9805 | QualType ASTContext::GetBuiltinType(unsigned Id, | |||
9806 | GetBuiltinTypeError &Error, | |||
9807 | unsigned *IntegerConstantArgs) const { | |||
9808 | const char *TypeStr = BuiltinInfo.getTypeString(Id); | |||
9809 | if (TypeStr[0] == '\0') { | |||
9810 | Error = GE_Missing_type; | |||
9811 | return {}; | |||
9812 | } | |||
9813 | ||||
9814 | SmallVector<QualType, 8> ArgTypes; | |||
9815 | ||||
9816 | bool RequiresICE = false; | |||
9817 | Error = GE_None; | |||
9818 | QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error, | |||
9819 | RequiresICE, true); | |||
9820 | if (Error != GE_None) | |||
9821 | return {}; | |||
9822 | ||||
9823 | assert(!RequiresICE && "Result of intrinsic cannot be required to be an ICE")((!RequiresICE && "Result of intrinsic cannot be required to be an ICE" ) ? static_cast<void> (0) : __assert_fail ("!RequiresICE && \"Result of intrinsic cannot be required to be an ICE\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9823, __PRETTY_FUNCTION__)); | |||
9824 | ||||
9825 | while (TypeStr[0] && TypeStr[0] != '.') { | |||
9826 | QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error, RequiresICE, true); | |||
9827 | if (Error != GE_None) | |||
9828 | return {}; | |||
9829 | ||||
9830 | // If this argument is required to be an IntegerConstantExpression and the | |||
9831 | // caller cares, fill in the bitmask we return. | |||
9832 | if (RequiresICE && IntegerConstantArgs) | |||
9833 | *IntegerConstantArgs |= 1 << ArgTypes.size(); | |||
9834 | ||||
9835 | // Do array -> pointer decay. The builtin should use the decayed type. | |||
9836 | if (Ty->isArrayType()) | |||
9837 | Ty = getArrayDecayedType(Ty); | |||
9838 | ||||
9839 | ArgTypes.push_back(Ty); | |||
9840 | } | |||
9841 | ||||
9842 | if (Id == Builtin::BI__GetExceptionInfo) | |||
9843 | return {}; | |||
9844 | ||||
9845 | assert((TypeStr[0] != '.' || TypeStr[1] == 0) &&(((TypeStr[0] != '.' || TypeStr[1] == 0) && "'.' should only occur at end of builtin type list!" ) ? static_cast<void> (0) : __assert_fail ("(TypeStr[0] != '.' || TypeStr[1] == 0) && \"'.' should only occur at end of builtin type list!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9846, __PRETTY_FUNCTION__)) | |||
9846 | "'.' should only occur at end of builtin type list!")(((TypeStr[0] != '.' || TypeStr[1] == 0) && "'.' should only occur at end of builtin type list!" ) ? static_cast<void> (0) : __assert_fail ("(TypeStr[0] != '.' || TypeStr[1] == 0) && \"'.' should only occur at end of builtin type list!\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 9846, __PRETTY_FUNCTION__)); | |||
9847 | ||||
9848 | bool Variadic = (TypeStr[0] == '.'); | |||
9849 | ||||
9850 | FunctionType::ExtInfo EI(getDefaultCallingConvention( | |||
9851 | Variadic, /*IsCXXMethod=*/false, /*IsBuiltin=*/true)); | |||
9852 | if (BuiltinInfo.isNoReturn(Id)) EI = EI.withNoReturn(true); | |||
9853 | ||||
9854 | ||||
9855 | // We really shouldn't be making a no-proto type here. | |||
9856 | if (ArgTypes.empty() && Variadic && !getLangOpts().CPlusPlus) | |||
9857 | return getFunctionNoProtoType(ResType, EI); | |||
9858 | ||||
9859 | FunctionProtoType::ExtProtoInfo EPI; | |||
9860 | EPI.ExtInfo = EI; | |||
9861 | EPI.Variadic = Variadic; | |||
9862 | if (getLangOpts().CPlusPlus && BuiltinInfo.isNoThrow(Id)) | |||
9863 | EPI.ExceptionSpec.Type = | |||
9864 | getLangOpts().CPlusPlus11 ? EST_BasicNoexcept : EST_DynamicNone; | |||
9865 | ||||
9866 | return getFunctionType(ResType, ArgTypes, EPI); | |||
9867 | } | |||
9868 | ||||
9869 | static GVALinkage basicGVALinkageForFunction(const ASTContext &Context, | |||
9870 | const FunctionDecl *FD) { | |||
9871 | if (!FD->isExternallyVisible()) | |||
9872 | return GVA_Internal; | |||
9873 | ||||
9874 | // Non-user-provided functions get emitted as weak definitions with every | |||
9875 | // use, no matter whether they've been explicitly instantiated etc. | |||
9876 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD)) | |||
9877 | if (!MD->isUserProvided()) | |||
9878 | return GVA_DiscardableODR; | |||
9879 | ||||
9880 | GVALinkage External; | |||
9881 | switch (FD->getTemplateSpecializationKind()) { | |||
9882 | case TSK_Undeclared: | |||
9883 | case TSK_ExplicitSpecialization: | |||
9884 | External = GVA_StrongExternal; | |||
9885 | break; | |||
9886 | ||||
9887 | case TSK_ExplicitInstantiationDefinition: | |||
9888 | return GVA_StrongODR; | |||
9889 | ||||
9890 | // C++11 [temp.explicit]p10: | |||
9891 | // [ Note: The intent is that an inline function that is the subject of | |||
9892 | // an explicit instantiation declaration will still be implicitly | |||
9893 | // instantiated when used so that the body can be considered for | |||
9894 | // inlining, but that no out-of-line copy of the inline function would be | |||
9895 | // generated in the translation unit. -- end note ] | |||
9896 | case TSK_ExplicitInstantiationDeclaration: | |||
9897 | return GVA_AvailableExternally; | |||
9898 | ||||
9899 | case TSK_ImplicitInstantiation: | |||
9900 | External = GVA_DiscardableODR; | |||
9901 | break; | |||
9902 | } | |||
9903 | ||||
9904 | if (!FD->isInlined()) | |||
9905 | return External; | |||
9906 | ||||
9907 | if ((!Context.getLangOpts().CPlusPlus && | |||
9908 | !Context.getTargetInfo().getCXXABI().isMicrosoft() && | |||
9909 | !FD->hasAttr<DLLExportAttr>()) || | |||
9910 | FD->hasAttr<GNUInlineAttr>()) { | |||
9911 | // FIXME: This doesn't match gcc's behavior for dllexport inline functions. | |||
9912 | ||||
9913 | // GNU or C99 inline semantics. Determine whether this symbol should be | |||
9914 | // externally visible. | |||
9915 | if (FD->isInlineDefinitionExternallyVisible()) | |||
9916 | return External; | |||
9917 | ||||
9918 | // C99 inline semantics, where the symbol is not externally visible. | |||
9919 | return GVA_AvailableExternally; | |||
9920 | } | |||
9921 | ||||
9922 | // Functions specified with extern and inline in -fms-compatibility mode | |||
9923 | // forcibly get emitted. While the body of the function cannot be later | |||
9924 | // replaced, the function definition cannot be discarded. | |||
9925 | if (FD->isMSExternInline()) | |||
9926 | return GVA_StrongODR; | |||
9927 | ||||
9928 | return GVA_DiscardableODR; | |||
9929 | } | |||
9930 | ||||
9931 | static GVALinkage adjustGVALinkageForAttributes(const ASTContext &Context, | |||
9932 | const Decl *D, GVALinkage L) { | |||
9933 | // See http://msdn.microsoft.com/en-us/library/xa0d9ste.aspx | |||
9934 | // dllexport/dllimport on inline functions. | |||
9935 | if (D->hasAttr<DLLImportAttr>()) { | |||
9936 | if (L == GVA_DiscardableODR || L == GVA_StrongODR) | |||
9937 | return GVA_AvailableExternally; | |||
9938 | } else if (D->hasAttr<DLLExportAttr>()) { | |||
9939 | if (L == GVA_DiscardableODR) | |||
9940 | return GVA_StrongODR; | |||
9941 | } else if (Context.getLangOpts().CUDA && Context.getLangOpts().CUDAIsDevice && | |||
9942 | D->hasAttr<CUDAGlobalAttr>()) { | |||
9943 | // Device-side functions with __global__ attribute must always be | |||
9944 | // visible externally so they can be launched from host. | |||
9945 | if (L == GVA_DiscardableODR || L == GVA_Internal) | |||
9946 | return GVA_StrongODR; | |||
9947 | } | |||
9948 | return L; | |||
9949 | } | |||
9950 | ||||
9951 | /// Adjust the GVALinkage for a declaration based on what an external AST source | |||
9952 | /// knows about whether there can be other definitions of this declaration. | |||
9953 | static GVALinkage | |||
9954 | adjustGVALinkageForExternalDefinitionKind(const ASTContext &Ctx, const Decl *D, | |||
9955 | GVALinkage L) { | |||
9956 | ExternalASTSource *Source = Ctx.getExternalSource(); | |||
9957 | if (!Source) | |||
9958 | return L; | |||
9959 | ||||
9960 | switch (Source->hasExternalDefinitions(D)) { | |||
9961 | case ExternalASTSource::EK_Never: | |||
9962 | // Other translation units rely on us to provide the definition. | |||
9963 | if (L == GVA_DiscardableODR) | |||
9964 | return GVA_StrongODR; | |||
9965 | break; | |||
9966 | ||||
9967 | case ExternalASTSource::EK_Always: | |||
9968 | return GVA_AvailableExternally; | |||
9969 | ||||
9970 | case ExternalASTSource::EK_ReplyHazy: | |||
9971 | break; | |||
9972 | } | |||
9973 | return L; | |||
9974 | } | |||
9975 | ||||
9976 | GVALinkage ASTContext::GetGVALinkageForFunction(const FunctionDecl *FD) const { | |||
9977 | return adjustGVALinkageForExternalDefinitionKind(*this, FD, | |||
9978 | adjustGVALinkageForAttributes(*this, FD, | |||
9979 | basicGVALinkageForFunction(*this, FD))); | |||
9980 | } | |||
9981 | ||||
9982 | static GVALinkage basicGVALinkageForVariable(const ASTContext &Context, | |||
9983 | const VarDecl *VD) { | |||
9984 | if (!VD->isExternallyVisible()) | |||
9985 | return GVA_Internal; | |||
9986 | ||||
9987 | if (VD->isStaticLocal()) { | |||
9988 | const DeclContext *LexicalContext = VD->getParentFunctionOrMethod(); | |||
9989 | while (LexicalContext && !isa<FunctionDecl>(LexicalContext)) | |||
9990 | LexicalContext = LexicalContext->getLexicalParent(); | |||
9991 | ||||
9992 | // ObjC Blocks can create local variables that don't have a FunctionDecl | |||
9993 | // LexicalContext. | |||
9994 | if (!LexicalContext) | |||
9995 | return GVA_DiscardableODR; | |||
9996 | ||||
9997 | // Otherwise, let the static local variable inherit its linkage from the | |||
9998 | // nearest enclosing function. | |||
9999 | auto StaticLocalLinkage = | |||
10000 | Context.GetGVALinkageForFunction(cast<FunctionDecl>(LexicalContext)); | |||
10001 | ||||
10002 | // Itanium ABI 5.2.2: "Each COMDAT group [for a static local variable] must | |||
10003 | // be emitted in any object with references to the symbol for the object it | |||
10004 | // contains, whether inline or out-of-line." | |||
10005 | // Similar behavior is observed with MSVC. An alternative ABI could use | |||
10006 | // StrongODR/AvailableExternally to match the function, but none are | |||
10007 | // known/supported currently. | |||
10008 | if (StaticLocalLinkage == GVA_StrongODR || | |||
10009 | StaticLocalLinkage == GVA_AvailableExternally) | |||
10010 | return GVA_DiscardableODR; | |||
10011 | return StaticLocalLinkage; | |||
10012 | } | |||
10013 | ||||
10014 | // MSVC treats in-class initialized static data members as definitions. | |||
10015 | // By giving them non-strong linkage, out-of-line definitions won't | |||
10016 | // cause link errors. | |||
10017 | if (Context.isMSStaticDataMemberInlineDefinition(VD)) | |||
10018 | return GVA_DiscardableODR; | |||
10019 | ||||
10020 | // Most non-template variables have strong linkage; inline variables are | |||
10021 | // linkonce_odr or (occasionally, for compatibility) weak_odr. | |||
10022 | GVALinkage StrongLinkage; | |||
10023 | switch (Context.getInlineVariableDefinitionKind(VD)) { | |||
10024 | case ASTContext::InlineVariableDefinitionKind::None: | |||
10025 | StrongLinkage = GVA_StrongExternal; | |||
10026 | break; | |||
10027 | case ASTContext::InlineVariableDefinitionKind::Weak: | |||
10028 | case ASTContext::InlineVariableDefinitionKind::WeakUnknown: | |||
10029 | StrongLinkage = GVA_DiscardableODR; | |||
10030 | break; | |||
10031 | case ASTContext::InlineVariableDefinitionKind::Strong: | |||
10032 | StrongLinkage = GVA_StrongODR; | |||
10033 | break; | |||
10034 | } | |||
10035 | ||||
10036 | switch (VD->getTemplateSpecializationKind()) { | |||
10037 | case TSK_Undeclared: | |||
10038 | return StrongLinkage; | |||
10039 | ||||
10040 | case TSK_ExplicitSpecialization: | |||
10041 | return Context.getTargetInfo().getCXXABI().isMicrosoft() && | |||
10042 | VD->isStaticDataMember() | |||
10043 | ? GVA_StrongODR | |||
10044 | : StrongLinkage; | |||
10045 | ||||
10046 | case TSK_ExplicitInstantiationDefinition: | |||
10047 | return GVA_StrongODR; | |||
10048 | ||||
10049 | case TSK_ExplicitInstantiationDeclaration: | |||
10050 | return GVA_AvailableExternally; | |||
10051 | ||||
10052 | case TSK_ImplicitInstantiation: | |||
10053 | return GVA_DiscardableODR; | |||
10054 | } | |||
10055 | ||||
10056 | llvm_unreachable("Invalid Linkage!")::llvm::llvm_unreachable_internal("Invalid Linkage!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10056); | |||
10057 | } | |||
10058 | ||||
10059 | GVALinkage ASTContext::GetGVALinkageForVariable(const VarDecl *VD) { | |||
10060 | return adjustGVALinkageForExternalDefinitionKind(*this, VD, | |||
10061 | adjustGVALinkageForAttributes(*this, VD, | |||
10062 | basicGVALinkageForVariable(*this, VD))); | |||
10063 | } | |||
10064 | ||||
10065 | bool ASTContext::DeclMustBeEmitted(const Decl *D) { | |||
10066 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
10067 | if (!VD->isFileVarDecl()) | |||
10068 | return false; | |||
10069 | // Global named register variables (GNU extension) are never emitted. | |||
10070 | if (VD->getStorageClass() == SC_Register) | |||
10071 | return false; | |||
10072 | if (VD->getDescribedVarTemplate() || | |||
10073 | isa<VarTemplatePartialSpecializationDecl>(VD)) | |||
10074 | return false; | |||
10075 | } else if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
10076 | // We never need to emit an uninstantiated function template. | |||
10077 | if (FD->getTemplatedKind() == FunctionDecl::TK_FunctionTemplate) | |||
10078 | return false; | |||
10079 | } else if (isa<PragmaCommentDecl>(D)) | |||
10080 | return true; | |||
10081 | else if (isa<PragmaDetectMismatchDecl>(D)) | |||
10082 | return true; | |||
10083 | else if (isa<OMPRequiresDecl>(D)) | |||
10084 | return true; | |||
10085 | else if (isa<OMPThreadPrivateDecl>(D)) | |||
10086 | return !D->getDeclContext()->isDependentContext(); | |||
10087 | else if (isa<OMPAllocateDecl>(D)) | |||
10088 | return !D->getDeclContext()->isDependentContext(); | |||
10089 | else if (isa<OMPDeclareReductionDecl>(D) || isa<OMPDeclareMapperDecl>(D)) | |||
10090 | return !D->getDeclContext()->isDependentContext(); | |||
10091 | else if (isa<ImportDecl>(D)) | |||
10092 | return true; | |||
10093 | else | |||
10094 | return false; | |||
10095 | ||||
10096 | if (D->isFromASTFile() && !LangOpts.BuildingPCHWithObjectFile) { | |||
10097 | assert(getExternalSource() && "It's from an AST file; must have a source.")((getExternalSource() && "It's from an AST file; must have a source." ) ? static_cast<void> (0) : __assert_fail ("getExternalSource() && \"It's from an AST file; must have a source.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10097, __PRETTY_FUNCTION__)); | |||
10098 | // On Windows, PCH files are built together with an object file. If this | |||
10099 | // declaration comes from such a PCH and DeclMustBeEmitted would return | |||
10100 | // true, it would have returned true and the decl would have been emitted | |||
10101 | // into that object file, so it doesn't need to be emitted here. | |||
10102 | // Note that decls are still emitted if they're referenced, as usual; | |||
10103 | // DeclMustBeEmitted is used to decide whether a decl must be emitted even | |||
10104 | // if it's not referenced. | |||
10105 | // | |||
10106 | // Explicit template instantiation definitions are tricky. If there was an | |||
10107 | // explicit template instantiation decl in the PCH before, it will look like | |||
10108 | // the definition comes from there, even if that was just the declaration. | |||
10109 | // (Explicit instantiation defs of variable templates always get emitted.) | |||
10110 | bool IsExpInstDef = | |||
10111 | isa<FunctionDecl>(D) && | |||
10112 | cast<FunctionDecl>(D)->getTemplateSpecializationKind() == | |||
10113 | TSK_ExplicitInstantiationDefinition; | |||
10114 | ||||
10115 | // Implicit member function definitions, such as operator= might not be | |||
10116 | // marked as template specializations, since they're not coming from a | |||
10117 | // template but synthesized directly on the class. | |||
10118 | IsExpInstDef |= | |||
10119 | isa<CXXMethodDecl>(D) && | |||
10120 | cast<CXXMethodDecl>(D)->getParent()->getTemplateSpecializationKind() == | |||
10121 | TSK_ExplicitInstantiationDefinition; | |||
10122 | ||||
10123 | if (getExternalSource()->DeclIsFromPCHWithObjectFile(D) && !IsExpInstDef) | |||
10124 | return false; | |||
10125 | } | |||
10126 | ||||
10127 | // If this is a member of a class template, we do not need to emit it. | |||
10128 | if (D->getDeclContext()->isDependentContext()) | |||
10129 | return false; | |||
10130 | ||||
10131 | // Weak references don't produce any output by themselves. | |||
10132 | if (D->hasAttr<WeakRefAttr>()) | |||
10133 | return false; | |||
10134 | ||||
10135 | // Aliases and used decls are required. | |||
10136 | if (D->hasAttr<AliasAttr>() || D->hasAttr<UsedAttr>()) | |||
10137 | return true; | |||
10138 | ||||
10139 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
10140 | // Forward declarations aren't required. | |||
10141 | if (!FD->doesThisDeclarationHaveABody()) | |||
10142 | return FD->doesDeclarationForceExternallyVisibleDefinition(); | |||
10143 | ||||
10144 | // Constructors and destructors are required. | |||
10145 | if (FD->hasAttr<ConstructorAttr>() || FD->hasAttr<DestructorAttr>()) | |||
10146 | return true; | |||
10147 | ||||
10148 | // The key function for a class is required. This rule only comes | |||
10149 | // into play when inline functions can be key functions, though. | |||
10150 | if (getTargetInfo().getCXXABI().canKeyFunctionBeInline()) { | |||
10151 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD)) { | |||
10152 | const CXXRecordDecl *RD = MD->getParent(); | |||
10153 | if (MD->isOutOfLine() && RD->isDynamicClass()) { | |||
10154 | const CXXMethodDecl *KeyFunc = getCurrentKeyFunction(RD); | |||
10155 | if (KeyFunc && KeyFunc->getCanonicalDecl() == MD->getCanonicalDecl()) | |||
10156 | return true; | |||
10157 | } | |||
10158 | } | |||
10159 | } | |||
10160 | ||||
10161 | GVALinkage Linkage = GetGVALinkageForFunction(FD); | |||
10162 | ||||
10163 | // static, static inline, always_inline, and extern inline functions can | |||
10164 | // always be deferred. Normal inline functions can be deferred in C99/C++. | |||
10165 | // Implicit template instantiations can also be deferred in C++. | |||
10166 | return !isDiscardableGVALinkage(Linkage); | |||
10167 | } | |||
10168 | ||||
10169 | const auto *VD = cast<VarDecl>(D); | |||
10170 | assert(VD->isFileVarDecl() && "Expected file scoped var")((VD->isFileVarDecl() && "Expected file scoped var" ) ? static_cast<void> (0) : __assert_fail ("VD->isFileVarDecl() && \"Expected file scoped var\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10170, __PRETTY_FUNCTION__)); | |||
10171 | ||||
10172 | // If the decl is marked as `declare target to`, it should be emitted for the | |||
10173 | // host and for the device. | |||
10174 | if (LangOpts.OpenMP && | |||
10175 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD)) | |||
10176 | return true; | |||
10177 | ||||
10178 | if (VD->isThisDeclarationADefinition() == VarDecl::DeclarationOnly && | |||
10179 | !isMSStaticDataMemberInlineDefinition(VD)) | |||
10180 | return false; | |||
10181 | ||||
10182 | // Variables that can be needed in other TUs are required. | |||
10183 | auto Linkage = GetGVALinkageForVariable(VD); | |||
10184 | if (!isDiscardableGVALinkage(Linkage)) | |||
10185 | return true; | |||
10186 | ||||
10187 | // We never need to emit a variable that is available in another TU. | |||
10188 | if (Linkage == GVA_AvailableExternally) | |||
10189 | return false; | |||
10190 | ||||
10191 | // Variables that have destruction with side-effects are required. | |||
10192 | if (VD->needsDestruction(*this)) | |||
10193 | return true; | |||
10194 | ||||
10195 | // Variables that have initialization with side-effects are required. | |||
10196 | if (VD->getInit() && VD->getInit()->HasSideEffects(*this) && | |||
10197 | // We can get a value-dependent initializer during error recovery. | |||
10198 | (VD->getInit()->isValueDependent() || !VD->evaluateValue())) | |||
10199 | return true; | |||
10200 | ||||
10201 | // Likewise, variables with tuple-like bindings are required if their | |||
10202 | // bindings have side-effects. | |||
10203 | if (const auto *DD = dyn_cast<DecompositionDecl>(VD)) | |||
10204 | for (const auto *BD : DD->bindings()) | |||
10205 | if (const auto *BindingVD = BD->getHoldingVar()) | |||
10206 | if (DeclMustBeEmitted(BindingVD)) | |||
10207 | return true; | |||
10208 | ||||
10209 | return false; | |||
10210 | } | |||
10211 | ||||
10212 | void ASTContext::forEachMultiversionedFunctionVersion( | |||
10213 | const FunctionDecl *FD, | |||
10214 | llvm::function_ref<void(FunctionDecl *)> Pred) const { | |||
10215 | assert(FD->isMultiVersion() && "Only valid for multiversioned functions")((FD->isMultiVersion() && "Only valid for multiversioned functions" ) ? static_cast<void> (0) : __assert_fail ("FD->isMultiVersion() && \"Only valid for multiversioned functions\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10215, __PRETTY_FUNCTION__)); | |||
10216 | llvm::SmallDenseSet<const FunctionDecl*, 4> SeenDecls; | |||
10217 | FD = FD->getMostRecentDecl(); | |||
10218 | for (auto *CurDecl : | |||
10219 | FD->getDeclContext()->getRedeclContext()->lookup(FD->getDeclName())) { | |||
10220 | FunctionDecl *CurFD = CurDecl->getAsFunction()->getMostRecentDecl(); | |||
10221 | if (CurFD && hasSameType(CurFD->getType(), FD->getType()) && | |||
10222 | std::end(SeenDecls) == llvm::find(SeenDecls, CurFD)) { | |||
10223 | SeenDecls.insert(CurFD); | |||
10224 | Pred(CurFD); | |||
10225 | } | |||
10226 | } | |||
10227 | } | |||
10228 | ||||
10229 | CallingConv ASTContext::getDefaultCallingConvention(bool IsVariadic, | |||
10230 | bool IsCXXMethod, | |||
10231 | bool IsBuiltin) const { | |||
10232 | // Pass through to the C++ ABI object | |||
10233 | if (IsCXXMethod) | |||
10234 | return ABI->getDefaultMethodCallConv(IsVariadic); | |||
10235 | ||||
10236 | // Builtins ignore user-specified default calling convention and remain the | |||
10237 | // Target's default calling convention. | |||
10238 | if (!IsBuiltin) { | |||
10239 | switch (LangOpts.getDefaultCallingConv()) { | |||
10240 | case LangOptions::DCC_None: | |||
10241 | break; | |||
10242 | case LangOptions::DCC_CDecl: | |||
10243 | return CC_C; | |||
10244 | case LangOptions::DCC_FastCall: | |||
10245 | if (getTargetInfo().hasFeature("sse2") && !IsVariadic) | |||
10246 | return CC_X86FastCall; | |||
10247 | break; | |||
10248 | case LangOptions::DCC_StdCall: | |||
10249 | if (!IsVariadic) | |||
10250 | return CC_X86StdCall; | |||
10251 | break; | |||
10252 | case LangOptions::DCC_VectorCall: | |||
10253 | // __vectorcall cannot be applied to variadic functions. | |||
10254 | if (!IsVariadic) | |||
10255 | return CC_X86VectorCall; | |||
10256 | break; | |||
10257 | case LangOptions::DCC_RegCall: | |||
10258 | // __regcall cannot be applied to variadic functions. | |||
10259 | if (!IsVariadic) | |||
10260 | return CC_X86RegCall; | |||
10261 | break; | |||
10262 | } | |||
10263 | } | |||
10264 | return Target->getDefaultCallingConv(); | |||
10265 | } | |||
10266 | ||||
10267 | bool ASTContext::isNearlyEmpty(const CXXRecordDecl *RD) const { | |||
10268 | // Pass through to the C++ ABI object | |||
10269 | return ABI->isNearlyEmpty(RD); | |||
10270 | } | |||
10271 | ||||
10272 | VTableContextBase *ASTContext::getVTableContext() { | |||
10273 | if (!VTContext.get()) { | |||
10274 | if (Target->getCXXABI().isMicrosoft()) | |||
10275 | VTContext.reset(new MicrosoftVTableContext(*this)); | |||
10276 | else | |||
10277 | VTContext.reset(new ItaniumVTableContext(*this)); | |||
10278 | } | |||
10279 | return VTContext.get(); | |||
10280 | } | |||
10281 | ||||
10282 | MangleContext *ASTContext::createMangleContext(const TargetInfo *T) { | |||
10283 | if (!T) | |||
10284 | T = Target; | |||
10285 | switch (T->getCXXABI().getKind()) { | |||
10286 | case TargetCXXABI::Fuchsia: | |||
10287 | case TargetCXXABI::GenericAArch64: | |||
10288 | case TargetCXXABI::GenericItanium: | |||
10289 | case TargetCXXABI::GenericARM: | |||
10290 | case TargetCXXABI::GenericMIPS: | |||
10291 | case TargetCXXABI::iOS: | |||
10292 | case TargetCXXABI::iOS64: | |||
10293 | case TargetCXXABI::WebAssembly: | |||
10294 | case TargetCXXABI::WatchOS: | |||
10295 | case TargetCXXABI::XL: | |||
10296 | return ItaniumMangleContext::create(*this, getDiagnostics()); | |||
10297 | case TargetCXXABI::Microsoft: | |||
10298 | return MicrosoftMangleContext::create(*this, getDiagnostics()); | |||
10299 | } | |||
10300 | llvm_unreachable("Unsupported ABI")::llvm::llvm_unreachable_internal("Unsupported ABI", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10300); | |||
10301 | } | |||
10302 | ||||
10303 | CXXABI::~CXXABI() = default; | |||
10304 | ||||
10305 | size_t ASTContext::getSideTableAllocatedMemory() const { | |||
10306 | return ASTRecordLayouts.getMemorySize() + | |||
10307 | llvm::capacity_in_bytes(ObjCLayouts) + | |||
10308 | llvm::capacity_in_bytes(KeyFunctions) + | |||
10309 | llvm::capacity_in_bytes(ObjCImpls) + | |||
10310 | llvm::capacity_in_bytes(BlockVarCopyInits) + | |||
10311 | llvm::capacity_in_bytes(DeclAttrs) + | |||
10312 | llvm::capacity_in_bytes(TemplateOrInstantiation) + | |||
10313 | llvm::capacity_in_bytes(InstantiatedFromUsingDecl) + | |||
10314 | llvm::capacity_in_bytes(InstantiatedFromUsingShadowDecl) + | |||
10315 | llvm::capacity_in_bytes(InstantiatedFromUnnamedFieldDecl) + | |||
10316 | llvm::capacity_in_bytes(OverriddenMethods) + | |||
10317 | llvm::capacity_in_bytes(Types) + | |||
10318 | llvm::capacity_in_bytes(VariableArrayTypes); | |||
10319 | } | |||
10320 | ||||
10321 | /// getIntTypeForBitwidth - | |||
10322 | /// sets integer QualTy according to specified details: | |||
10323 | /// bitwidth, signed/unsigned. | |||
10324 | /// Returns empty type if there is no appropriate target types. | |||
10325 | QualType ASTContext::getIntTypeForBitwidth(unsigned DestWidth, | |||
10326 | unsigned Signed) const { | |||
10327 | TargetInfo::IntType Ty = getTargetInfo().getIntTypeByWidth(DestWidth, Signed); | |||
10328 | CanQualType QualTy = getFromTargetType(Ty); | |||
10329 | if (!QualTy && DestWidth == 128) | |||
10330 | return Signed ? Int128Ty : UnsignedInt128Ty; | |||
10331 | return QualTy; | |||
10332 | } | |||
10333 | ||||
10334 | /// getRealTypeForBitwidth - | |||
10335 | /// sets floating point QualTy according to specified bitwidth. | |||
10336 | /// Returns empty type if there is no appropriate target types. | |||
10337 | QualType ASTContext::getRealTypeForBitwidth(unsigned DestWidth) const { | |||
10338 | TargetInfo::RealType Ty = getTargetInfo().getRealTypeByWidth(DestWidth); | |||
10339 | switch (Ty) { | |||
10340 | case TargetInfo::Float: | |||
10341 | return FloatTy; | |||
10342 | case TargetInfo::Double: | |||
10343 | return DoubleTy; | |||
10344 | case TargetInfo::LongDouble: | |||
10345 | return LongDoubleTy; | |||
10346 | case TargetInfo::Float128: | |||
10347 | return Float128Ty; | |||
10348 | case TargetInfo::NoFloat: | |||
10349 | return {}; | |||
10350 | } | |||
10351 | ||||
10352 | llvm_unreachable("Unhandled TargetInfo::RealType value")::llvm::llvm_unreachable_internal("Unhandled TargetInfo::RealType value" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10352); | |||
10353 | } | |||
10354 | ||||
10355 | void ASTContext::setManglingNumber(const NamedDecl *ND, unsigned Number) { | |||
10356 | if (Number > 1) | |||
10357 | MangleNumbers[ND] = Number; | |||
10358 | } | |||
10359 | ||||
10360 | unsigned ASTContext::getManglingNumber(const NamedDecl *ND) const { | |||
10361 | auto I = MangleNumbers.find(ND); | |||
10362 | return I != MangleNumbers.end() ? I->second : 1; | |||
10363 | } | |||
10364 | ||||
10365 | void ASTContext::setStaticLocalNumber(const VarDecl *VD, unsigned Number) { | |||
10366 | if (Number > 1) | |||
10367 | StaticLocalNumbers[VD] = Number; | |||
10368 | } | |||
10369 | ||||
10370 | unsigned ASTContext::getStaticLocalNumber(const VarDecl *VD) const { | |||
10371 | auto I = StaticLocalNumbers.find(VD); | |||
10372 | return I != StaticLocalNumbers.end() ? I->second : 1; | |||
10373 | } | |||
10374 | ||||
10375 | MangleNumberingContext & | |||
10376 | ASTContext::getManglingNumberContext(const DeclContext *DC) { | |||
10377 | assert(LangOpts.CPlusPlus)((LangOpts.CPlusPlus) ? static_cast<void> (0) : __assert_fail ("LangOpts.CPlusPlus", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10377, __PRETTY_FUNCTION__)); // We don't need mangling numbers for plain C. | |||
10378 | std::unique_ptr<MangleNumberingContext> &MCtx = MangleNumberingContexts[DC]; | |||
10379 | if (!MCtx) | |||
10380 | MCtx = createMangleNumberingContext(); | |||
10381 | return *MCtx; | |||
10382 | } | |||
10383 | ||||
10384 | MangleNumberingContext & | |||
10385 | ASTContext::getManglingNumberContext(NeedExtraManglingDecl_t, const Decl *D) { | |||
10386 | assert(LangOpts.CPlusPlus)((LangOpts.CPlusPlus) ? static_cast<void> (0) : __assert_fail ("LangOpts.CPlusPlus", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10386, __PRETTY_FUNCTION__)); // We don't need mangling numbers for plain C. | |||
10387 | std::unique_ptr<MangleNumberingContext> &MCtx = | |||
10388 | ExtraMangleNumberingContexts[D]; | |||
10389 | if (!MCtx) | |||
10390 | MCtx = createMangleNumberingContext(); | |||
10391 | return *MCtx; | |||
10392 | } | |||
10393 | ||||
10394 | std::unique_ptr<MangleNumberingContext> | |||
10395 | ASTContext::createMangleNumberingContext() const { | |||
10396 | return ABI->createMangleNumberingContext(); | |||
10397 | } | |||
10398 | ||||
10399 | const CXXConstructorDecl * | |||
10400 | ASTContext::getCopyConstructorForExceptionObject(CXXRecordDecl *RD) { | |||
10401 | return ABI->getCopyConstructorForExceptionObject( | |||
10402 | cast<CXXRecordDecl>(RD->getFirstDecl())); | |||
10403 | } | |||
10404 | ||||
10405 | void ASTContext::addCopyConstructorForExceptionObject(CXXRecordDecl *RD, | |||
10406 | CXXConstructorDecl *CD) { | |||
10407 | return ABI->addCopyConstructorForExceptionObject( | |||
10408 | cast<CXXRecordDecl>(RD->getFirstDecl()), | |||
10409 | cast<CXXConstructorDecl>(CD->getFirstDecl())); | |||
10410 | } | |||
10411 | ||||
10412 | void ASTContext::addTypedefNameForUnnamedTagDecl(TagDecl *TD, | |||
10413 | TypedefNameDecl *DD) { | |||
10414 | return ABI->addTypedefNameForUnnamedTagDecl(TD, DD); | |||
10415 | } | |||
10416 | ||||
10417 | TypedefNameDecl * | |||
10418 | ASTContext::getTypedefNameForUnnamedTagDecl(const TagDecl *TD) { | |||
10419 | return ABI->getTypedefNameForUnnamedTagDecl(TD); | |||
10420 | } | |||
10421 | ||||
10422 | void ASTContext::addDeclaratorForUnnamedTagDecl(TagDecl *TD, | |||
10423 | DeclaratorDecl *DD) { | |||
10424 | return ABI->addDeclaratorForUnnamedTagDecl(TD, DD); | |||
10425 | } | |||
10426 | ||||
10427 | DeclaratorDecl *ASTContext::getDeclaratorForUnnamedTagDecl(const TagDecl *TD) { | |||
10428 | return ABI->getDeclaratorForUnnamedTagDecl(TD); | |||
10429 | } | |||
10430 | ||||
10431 | void ASTContext::setParameterIndex(const ParmVarDecl *D, unsigned int index) { | |||
10432 | ParamIndices[D] = index; | |||
10433 | } | |||
10434 | ||||
10435 | unsigned ASTContext::getParameterIndex(const ParmVarDecl *D) const { | |||
10436 | ParameterIndexTable::const_iterator I = ParamIndices.find(D); | |||
10437 | assert(I != ParamIndices.end() &&((I != ParamIndices.end() && "ParmIndices lacks entry set by ParmVarDecl" ) ? static_cast<void> (0) : __assert_fail ("I != ParamIndices.end() && \"ParmIndices lacks entry set by ParmVarDecl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10438, __PRETTY_FUNCTION__)) | |||
10438 | "ParmIndices lacks entry set by ParmVarDecl")((I != ParamIndices.end() && "ParmIndices lacks entry set by ParmVarDecl" ) ? static_cast<void> (0) : __assert_fail ("I != ParamIndices.end() && \"ParmIndices lacks entry set by ParmVarDecl\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10438, __PRETTY_FUNCTION__)); | |||
10439 | return I->second; | |||
10440 | } | |||
10441 | ||||
10442 | QualType ASTContext::getStringLiteralArrayType(QualType EltTy, | |||
10443 | unsigned Length) const { | |||
10444 | // A C++ string literal has a const-qualified element type (C++ 2.13.4p1). | |||
10445 | if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) | |||
10446 | EltTy = EltTy.withConst(); | |||
10447 | ||||
10448 | EltTy = adjustStringLiteralBaseType(EltTy); | |||
10449 | ||||
10450 | // Get an array type for the string, according to C99 6.4.5. This includes | |||
10451 | // the null terminator character. | |||
10452 | return getConstantArrayType(EltTy, llvm::APInt(32, Length + 1), nullptr, | |||
10453 | ArrayType::Normal, /*IndexTypeQuals*/ 0); | |||
10454 | } | |||
10455 | ||||
10456 | StringLiteral * | |||
10457 | ASTContext::getPredefinedStringLiteralFromCache(StringRef Key) const { | |||
10458 | StringLiteral *&Result = StringLiteralCache[Key]; | |||
10459 | if (!Result) | |||
10460 | Result = StringLiteral::Create( | |||
10461 | *this, Key, StringLiteral::Ascii, | |||
10462 | /*Pascal*/ false, getStringLiteralArrayType(CharTy, Key.size()), | |||
10463 | SourceLocation()); | |||
10464 | return Result; | |||
10465 | } | |||
10466 | ||||
10467 | bool ASTContext::AtomicUsesUnsupportedLibcall(const AtomicExpr *E) const { | |||
10468 | const llvm::Triple &T = getTargetInfo().getTriple(); | |||
10469 | if (!T.isOSDarwin()) | |||
10470 | return false; | |||
10471 | ||||
10472 | if (!(T.isiOS() && T.isOSVersionLT(7)) && | |||
10473 | !(T.isMacOSX() && T.isOSVersionLT(10, 9))) | |||
10474 | return false; | |||
10475 | ||||
10476 | QualType AtomicTy = E->getPtr()->getType()->getPointeeType(); | |||
10477 | CharUnits sizeChars = getTypeSizeInChars(AtomicTy); | |||
10478 | uint64_t Size = sizeChars.getQuantity(); | |||
10479 | CharUnits alignChars = getTypeAlignInChars(AtomicTy); | |||
10480 | unsigned Align = alignChars.getQuantity(); | |||
10481 | unsigned MaxInlineWidthInBits = getTargetInfo().getMaxAtomicInlineWidth(); | |||
10482 | return (Size != Align || toBits(sizeChars) > MaxInlineWidthInBits); | |||
10483 | } | |||
10484 | ||||
10485 | bool | |||
10486 | ASTContext::ObjCMethodsAreEqual(const ObjCMethodDecl *MethodDecl, | |||
10487 | const ObjCMethodDecl *MethodImpl) { | |||
10488 | // No point trying to match an unavailable/deprecated mothod. | |||
10489 | if (MethodDecl->hasAttr<UnavailableAttr>() | |||
10490 | || MethodDecl->hasAttr<DeprecatedAttr>()) | |||
10491 | return false; | |||
10492 | if (MethodDecl->getObjCDeclQualifier() != | |||
10493 | MethodImpl->getObjCDeclQualifier()) | |||
10494 | return false; | |||
10495 | if (!hasSameType(MethodDecl->getReturnType(), MethodImpl->getReturnType())) | |||
10496 | return false; | |||
10497 | ||||
10498 | if (MethodDecl->param_size() != MethodImpl->param_size()) | |||
10499 | return false; | |||
10500 | ||||
10501 | for (ObjCMethodDecl::param_const_iterator IM = MethodImpl->param_begin(), | |||
10502 | IF = MethodDecl->param_begin(), EM = MethodImpl->param_end(), | |||
10503 | EF = MethodDecl->param_end(); | |||
10504 | IM != EM && IF != EF; ++IM, ++IF) { | |||
10505 | const ParmVarDecl *DeclVar = (*IF); | |||
10506 | const ParmVarDecl *ImplVar = (*IM); | |||
10507 | if (ImplVar->getObjCDeclQualifier() != DeclVar->getObjCDeclQualifier()) | |||
10508 | return false; | |||
10509 | if (!hasSameType(DeclVar->getType(), ImplVar->getType())) | |||
10510 | return false; | |||
10511 | } | |||
10512 | ||||
10513 | return (MethodDecl->isVariadic() == MethodImpl->isVariadic()); | |||
10514 | } | |||
10515 | ||||
10516 | uint64_t ASTContext::getTargetNullPointerValue(QualType QT) const { | |||
10517 | LangAS AS; | |||
10518 | if (QT->getUnqualifiedDesugaredType()->isNullPtrType()) | |||
10519 | AS = LangAS::Default; | |||
10520 | else | |||
10521 | AS = QT->getPointeeType().getAddressSpace(); | |||
10522 | ||||
10523 | return getTargetInfo().getNullPointerValue(AS); | |||
10524 | } | |||
10525 | ||||
10526 | unsigned ASTContext::getTargetAddressSpace(LangAS AS) const { | |||
10527 | if (isTargetAddressSpace(AS)) | |||
10528 | return toTargetAddressSpace(AS); | |||
10529 | else | |||
10530 | return (*AddrSpaceMap)[(unsigned)AS]; | |||
10531 | } | |||
10532 | ||||
10533 | QualType ASTContext::getCorrespondingSaturatedType(QualType Ty) const { | |||
10534 | assert(Ty->isFixedPointType())((Ty->isFixedPointType()) ? static_cast<void> (0) : __assert_fail ("Ty->isFixedPointType()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10534, __PRETTY_FUNCTION__)); | |||
10535 | ||||
10536 | if (Ty->isSaturatedFixedPointType()) return Ty; | |||
10537 | ||||
10538 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
10539 | default: | |||
10540 | llvm_unreachable("Not a fixed point type!")::llvm::llvm_unreachable_internal("Not a fixed point type!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10540); | |||
10541 | case BuiltinType::ShortAccum: | |||
10542 | return SatShortAccumTy; | |||
10543 | case BuiltinType::Accum: | |||
10544 | return SatAccumTy; | |||
10545 | case BuiltinType::LongAccum: | |||
10546 | return SatLongAccumTy; | |||
10547 | case BuiltinType::UShortAccum: | |||
10548 | return SatUnsignedShortAccumTy; | |||
10549 | case BuiltinType::UAccum: | |||
10550 | return SatUnsignedAccumTy; | |||
10551 | case BuiltinType::ULongAccum: | |||
10552 | return SatUnsignedLongAccumTy; | |||
10553 | case BuiltinType::ShortFract: | |||
10554 | return SatShortFractTy; | |||
10555 | case BuiltinType::Fract: | |||
10556 | return SatFractTy; | |||
10557 | case BuiltinType::LongFract: | |||
10558 | return SatLongFractTy; | |||
10559 | case BuiltinType::UShortFract: | |||
10560 | return SatUnsignedShortFractTy; | |||
10561 | case BuiltinType::UFract: | |||
10562 | return SatUnsignedFractTy; | |||
10563 | case BuiltinType::ULongFract: | |||
10564 | return SatUnsignedLongFractTy; | |||
10565 | } | |||
10566 | } | |||
10567 | ||||
10568 | LangAS ASTContext::getLangASForBuiltinAddressSpace(unsigned AS) const { | |||
10569 | if (LangOpts.OpenCL) | |||
10570 | return getTargetInfo().getOpenCLBuiltinAddressSpace(AS); | |||
10571 | ||||
10572 | if (LangOpts.CUDA) | |||
10573 | return getTargetInfo().getCUDABuiltinAddressSpace(AS); | |||
10574 | ||||
10575 | return getLangASFromTargetAS(AS); | |||
10576 | } | |||
10577 | ||||
10578 | // Explicitly instantiate this in case a Redeclarable<T> is used from a TU that | |||
10579 | // doesn't include ASTContext.h | |||
10580 | template | |||
10581 | clang::LazyGenerationalUpdatePtr< | |||
10582 | const Decl *, Decl *, &ExternalASTSource::CompleteRedeclChain>::ValueType | |||
10583 | clang::LazyGenerationalUpdatePtr< | |||
10584 | const Decl *, Decl *, &ExternalASTSource::CompleteRedeclChain>::makeValue( | |||
10585 | const clang::ASTContext &Ctx, Decl *Value); | |||
10586 | ||||
10587 | unsigned char ASTContext::getFixedPointScale(QualType Ty) const { | |||
10588 | assert(Ty->isFixedPointType())((Ty->isFixedPointType()) ? static_cast<void> (0) : __assert_fail ("Ty->isFixedPointType()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10588, __PRETTY_FUNCTION__)); | |||
10589 | ||||
10590 | const TargetInfo &Target = getTargetInfo(); | |||
10591 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
10592 | default: | |||
10593 | llvm_unreachable("Not a fixed point type!")::llvm::llvm_unreachable_internal("Not a fixed point type!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10593); | |||
10594 | case BuiltinType::ShortAccum: | |||
10595 | case BuiltinType::SatShortAccum: | |||
10596 | return Target.getShortAccumScale(); | |||
10597 | case BuiltinType::Accum: | |||
10598 | case BuiltinType::SatAccum: | |||
10599 | return Target.getAccumScale(); | |||
10600 | case BuiltinType::LongAccum: | |||
10601 | case BuiltinType::SatLongAccum: | |||
10602 | return Target.getLongAccumScale(); | |||
10603 | case BuiltinType::UShortAccum: | |||
10604 | case BuiltinType::SatUShortAccum: | |||
10605 | return Target.getUnsignedShortAccumScale(); | |||
10606 | case BuiltinType::UAccum: | |||
10607 | case BuiltinType::SatUAccum: | |||
10608 | return Target.getUnsignedAccumScale(); | |||
10609 | case BuiltinType::ULongAccum: | |||
10610 | case BuiltinType::SatULongAccum: | |||
10611 | return Target.getUnsignedLongAccumScale(); | |||
10612 | case BuiltinType::ShortFract: | |||
10613 | case BuiltinType::SatShortFract: | |||
10614 | return Target.getShortFractScale(); | |||
10615 | case BuiltinType::Fract: | |||
10616 | case BuiltinType::SatFract: | |||
10617 | return Target.getFractScale(); | |||
10618 | case BuiltinType::LongFract: | |||
10619 | case BuiltinType::SatLongFract: | |||
10620 | return Target.getLongFractScale(); | |||
10621 | case BuiltinType::UShortFract: | |||
10622 | case BuiltinType::SatUShortFract: | |||
10623 | return Target.getUnsignedShortFractScale(); | |||
10624 | case BuiltinType::UFract: | |||
10625 | case BuiltinType::SatUFract: | |||
10626 | return Target.getUnsignedFractScale(); | |||
10627 | case BuiltinType::ULongFract: | |||
10628 | case BuiltinType::SatULongFract: | |||
10629 | return Target.getUnsignedLongFractScale(); | |||
10630 | } | |||
10631 | } | |||
10632 | ||||
10633 | unsigned char ASTContext::getFixedPointIBits(QualType Ty) const { | |||
10634 | assert(Ty->isFixedPointType())((Ty->isFixedPointType()) ? static_cast<void> (0) : __assert_fail ("Ty->isFixedPointType()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10634, __PRETTY_FUNCTION__)); | |||
10635 | ||||
10636 | const TargetInfo &Target = getTargetInfo(); | |||
10637 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
10638 | default: | |||
10639 | llvm_unreachable("Not a fixed point type!")::llvm::llvm_unreachable_internal("Not a fixed point type!", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10639); | |||
10640 | case BuiltinType::ShortAccum: | |||
10641 | case BuiltinType::SatShortAccum: | |||
10642 | return Target.getShortAccumIBits(); | |||
10643 | case BuiltinType::Accum: | |||
10644 | case BuiltinType::SatAccum: | |||
10645 | return Target.getAccumIBits(); | |||
10646 | case BuiltinType::LongAccum: | |||
10647 | case BuiltinType::SatLongAccum: | |||
10648 | return Target.getLongAccumIBits(); | |||
10649 | case BuiltinType::UShortAccum: | |||
10650 | case BuiltinType::SatUShortAccum: | |||
10651 | return Target.getUnsignedShortAccumIBits(); | |||
10652 | case BuiltinType::UAccum: | |||
10653 | case BuiltinType::SatUAccum: | |||
10654 | return Target.getUnsignedAccumIBits(); | |||
10655 | case BuiltinType::ULongAccum: | |||
10656 | case BuiltinType::SatULongAccum: | |||
10657 | return Target.getUnsignedLongAccumIBits(); | |||
10658 | case BuiltinType::ShortFract: | |||
10659 | case BuiltinType::SatShortFract: | |||
10660 | case BuiltinType::Fract: | |||
10661 | case BuiltinType::SatFract: | |||
10662 | case BuiltinType::LongFract: | |||
10663 | case BuiltinType::SatLongFract: | |||
10664 | case BuiltinType::UShortFract: | |||
10665 | case BuiltinType::SatUShortFract: | |||
10666 | case BuiltinType::UFract: | |||
10667 | case BuiltinType::SatUFract: | |||
10668 | case BuiltinType::ULongFract: | |||
10669 | case BuiltinType::SatULongFract: | |||
10670 | return 0; | |||
10671 | } | |||
10672 | } | |||
10673 | ||||
10674 | FixedPointSemantics ASTContext::getFixedPointSemantics(QualType Ty) const { | |||
10675 | assert((Ty->isFixedPointType() || Ty->isIntegerType()) &&(((Ty->isFixedPointType() || Ty->isIntegerType()) && "Can only get the fixed point semantics for a " "fixed point or integer type." ) ? static_cast<void> (0) : __assert_fail ("(Ty->isFixedPointType() || Ty->isIntegerType()) && \"Can only get the fixed point semantics for a \" \"fixed point or integer type.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10677, __PRETTY_FUNCTION__)) | |||
10676 | "Can only get the fixed point semantics for a "(((Ty->isFixedPointType() || Ty->isIntegerType()) && "Can only get the fixed point semantics for a " "fixed point or integer type." ) ? static_cast<void> (0) : __assert_fail ("(Ty->isFixedPointType() || Ty->isIntegerType()) && \"Can only get the fixed point semantics for a \" \"fixed point or integer type.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10677, __PRETTY_FUNCTION__)) | |||
10677 | "fixed point or integer type.")(((Ty->isFixedPointType() || Ty->isIntegerType()) && "Can only get the fixed point semantics for a " "fixed point or integer type." ) ? static_cast<void> (0) : __assert_fail ("(Ty->isFixedPointType() || Ty->isIntegerType()) && \"Can only get the fixed point semantics for a \" \"fixed point or integer type.\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10677, __PRETTY_FUNCTION__)); | |||
10678 | if (Ty->isIntegerType()) | |||
10679 | return FixedPointSemantics::GetIntegerSemantics(getIntWidth(Ty), | |||
10680 | Ty->isSignedIntegerType()); | |||
10681 | ||||
10682 | bool isSigned = Ty->isSignedFixedPointType(); | |||
10683 | return FixedPointSemantics( | |||
10684 | static_cast<unsigned>(getTypeSize(Ty)), getFixedPointScale(Ty), isSigned, | |||
10685 | Ty->isSaturatedFixedPointType(), | |||
10686 | !isSigned && getTargetInfo().doUnsignedFixedPointTypesHavePadding()); | |||
10687 | } | |||
10688 | ||||
10689 | APFixedPoint ASTContext::getFixedPointMax(QualType Ty) const { | |||
10690 | assert(Ty->isFixedPointType())((Ty->isFixedPointType()) ? static_cast<void> (0) : __assert_fail ("Ty->isFixedPointType()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10690, __PRETTY_FUNCTION__)); | |||
10691 | return APFixedPoint::getMax(getFixedPointSemantics(Ty)); | |||
10692 | } | |||
10693 | ||||
10694 | APFixedPoint ASTContext::getFixedPointMin(QualType Ty) const { | |||
10695 | assert(Ty->isFixedPointType())((Ty->isFixedPointType()) ? static_cast<void> (0) : __assert_fail ("Ty->isFixedPointType()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10695, __PRETTY_FUNCTION__)); | |||
10696 | return APFixedPoint::getMin(getFixedPointSemantics(Ty)); | |||
10697 | } | |||
10698 | ||||
10699 | QualType ASTContext::getCorrespondingSignedFixedPointType(QualType Ty) const { | |||
10700 | assert(Ty->isUnsignedFixedPointType() &&((Ty->isUnsignedFixedPointType() && "Expected unsigned fixed point type" ) ? static_cast<void> (0) : __assert_fail ("Ty->isUnsignedFixedPointType() && \"Expected unsigned fixed point type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10701, __PRETTY_FUNCTION__)) | |||
10701 | "Expected unsigned fixed point type")((Ty->isUnsignedFixedPointType() && "Expected unsigned fixed point type" ) ? static_cast<void> (0) : __assert_fail ("Ty->isUnsignedFixedPointType() && \"Expected unsigned fixed point type\"" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10701, __PRETTY_FUNCTION__)); | |||
10702 | ||||
10703 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
10704 | case BuiltinType::UShortAccum: | |||
10705 | return ShortAccumTy; | |||
10706 | case BuiltinType::UAccum: | |||
10707 | return AccumTy; | |||
10708 | case BuiltinType::ULongAccum: | |||
10709 | return LongAccumTy; | |||
10710 | case BuiltinType::SatUShortAccum: | |||
10711 | return SatShortAccumTy; | |||
10712 | case BuiltinType::SatUAccum: | |||
10713 | return SatAccumTy; | |||
10714 | case BuiltinType::SatULongAccum: | |||
10715 | return SatLongAccumTy; | |||
10716 | case BuiltinType::UShortFract: | |||
10717 | return ShortFractTy; | |||
10718 | case BuiltinType::UFract: | |||
10719 | return FractTy; | |||
10720 | case BuiltinType::ULongFract: | |||
10721 | return LongFractTy; | |||
10722 | case BuiltinType::SatUShortFract: | |||
10723 | return SatShortFractTy; | |||
10724 | case BuiltinType::SatUFract: | |||
10725 | return SatFractTy; | |||
10726 | case BuiltinType::SatULongFract: | |||
10727 | return SatLongFractTy; | |||
10728 | default: | |||
10729 | llvm_unreachable("Unexpected unsigned fixed point type")::llvm::llvm_unreachable_internal("Unexpected unsigned fixed point type" , "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10729); | |||
10730 | } | |||
10731 | } | |||
10732 | ||||
10733 | ParsedTargetAttr | |||
10734 | ASTContext::filterFunctionTargetAttrs(const TargetAttr *TD) const { | |||
10735 | assert(TD != nullptr)((TD != nullptr) ? static_cast<void> (0) : __assert_fail ("TD != nullptr", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/AST/ASTContext.cpp" , 10735, __PRETTY_FUNCTION__)); | |||
10736 | ParsedTargetAttr ParsedAttr = TD->parse(); | |||
10737 | ||||
10738 | ParsedAttr.Features.erase( | |||
10739 | llvm::remove_if(ParsedAttr.Features, | |||
10740 | [&](const std::string &Feat) { | |||
10741 | return !Target->isValidFeatureName( | |||
10742 | StringRef{Feat}.substr(1)); | |||
10743 | }), | |||
10744 | ParsedAttr.Features.end()); | |||
10745 | return ParsedAttr; | |||
10746 | } | |||
10747 | ||||
10748 | void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap, | |||
10749 | const FunctionDecl *FD) const { | |||
10750 | if (FD) | |||
10751 | getFunctionFeatureMap(FeatureMap, GlobalDecl().getWithDecl(FD)); | |||
10752 | else | |||
10753 | Target->initFeatureMap(FeatureMap, getDiagnostics(), | |||
10754 | Target->getTargetOpts().CPU, | |||
10755 | Target->getTargetOpts().Features); | |||
10756 | } | |||
10757 | ||||
10758 | // Fills in the supplied string map with the set of target features for the | |||
10759 | // passed in function. | |||
10760 | void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap, | |||
10761 | GlobalDecl GD) const { | |||
10762 | StringRef TargetCPU = Target->getTargetOpts().CPU; | |||
10763 | const FunctionDecl *FD = GD.getDecl()->getAsFunction(); | |||
10764 | if (const auto *TD = FD->getAttr<TargetAttr>()) { | |||
10765 | ParsedTargetAttr ParsedAttr = filterFunctionTargetAttrs(TD); | |||
10766 | ||||
10767 | // Make a copy of the features as passed on the command line into the | |||
10768 | // beginning of the additional features from the function to override. | |||
10769 | ParsedAttr.Features.insert( | |||
10770 | ParsedAttr.Features.begin(), | |||
10771 | Target->getTargetOpts().FeaturesAsWritten.begin(), | |||
10772 | Target->getTargetOpts().FeaturesAsWritten.end()); | |||
10773 | ||||
10774 | if (ParsedAttr.Architecture != "" && | |||
10775 | Target->isValidCPUName(ParsedAttr.Architecture)) | |||
10776 | TargetCPU = ParsedAttr.Architecture; | |||
10777 | ||||
10778 | // Now populate the feature map, first with the TargetCPU which is either | |||
10779 | // the default or a new one from the target attribute string. Then we'll use | |||
10780 | // the passed in features (FeaturesAsWritten) along with the new ones from | |||
10781 | // the attribute. | |||
10782 | Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, | |||
10783 | ParsedAttr.Features); | |||
10784 | } else if (const auto *SD = FD->getAttr<CPUSpecificAttr>()) { | |||
10785 | llvm::SmallVector<StringRef, 32> FeaturesTmp; | |||
10786 | Target->getCPUSpecificCPUDispatchFeatures( | |||
10787 | SD->getCPUName(GD.getMultiVersionIndex())->getName(), FeaturesTmp); | |||
10788 | std::vector<std::string> Features(FeaturesTmp.begin(), FeaturesTmp.end()); | |||
10789 | Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, Features); | |||
10790 | } else { | |||
10791 | Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, | |||
10792 | Target->getTargetOpts().Features); | |||
10793 | } | |||
10794 | } |