File: | build/llvm-toolchain-snapshot-15~++20220420111733+e13d2efed663/clang/lib/AST/DeclObjC.cpp |
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1 | //===- DeclObjC.cpp - ObjC Declaration AST Node Implementation ------------===// | |||
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 Objective-C related Decl classes. | |||
10 | // | |||
11 | //===----------------------------------------------------------------------===// | |||
12 | ||||
13 | #include "clang/AST/DeclObjC.h" | |||
14 | #include "clang/AST/ASTContext.h" | |||
15 | #include "clang/AST/ASTMutationListener.h" | |||
16 | #include "clang/AST/Attr.h" | |||
17 | #include "clang/AST/Decl.h" | |||
18 | #include "clang/AST/DeclBase.h" | |||
19 | #include "clang/AST/Stmt.h" | |||
20 | #include "clang/AST/Type.h" | |||
21 | #include "clang/AST/TypeLoc.h" | |||
22 | #include "clang/Basic/IdentifierTable.h" | |||
23 | #include "clang/Basic/LLVM.h" | |||
24 | #include "clang/Basic/LangOptions.h" | |||
25 | #include "clang/Basic/SourceLocation.h" | |||
26 | #include "llvm/ADT/None.h" | |||
27 | #include "llvm/ADT/SmallString.h" | |||
28 | #include "llvm/ADT/SmallVector.h" | |||
29 | #include "llvm/Support/Casting.h" | |||
30 | #include "llvm/Support/ErrorHandling.h" | |||
31 | #include "llvm/Support/raw_ostream.h" | |||
32 | #include <algorithm> | |||
33 | #include <cassert> | |||
34 | #include <cstdint> | |||
35 | #include <cstring> | |||
36 | #include <queue> | |||
37 | #include <utility> | |||
38 | ||||
39 | using namespace clang; | |||
40 | ||||
41 | //===----------------------------------------------------------------------===// | |||
42 | // ObjCListBase | |||
43 | //===----------------------------------------------------------------------===// | |||
44 | ||||
45 | void ObjCListBase::set(void *const* InList, unsigned Elts, ASTContext &Ctx) { | |||
46 | List = nullptr; | |||
47 | if (Elts == 0) return; // Setting to an empty list is a noop. | |||
48 | ||||
49 | List = new (Ctx) void*[Elts]; | |||
50 | NumElts = Elts; | |||
51 | memcpy(List, InList, sizeof(void*)*Elts); | |||
52 | } | |||
53 | ||||
54 | void ObjCProtocolList::set(ObjCProtocolDecl* const* InList, unsigned Elts, | |||
55 | const SourceLocation *Locs, ASTContext &Ctx) { | |||
56 | if (Elts == 0) | |||
57 | return; | |||
58 | ||||
59 | Locations = new (Ctx) SourceLocation[Elts]; | |||
60 | memcpy(Locations, Locs, sizeof(SourceLocation) * Elts); | |||
61 | set(InList, Elts, Ctx); | |||
62 | } | |||
63 | ||||
64 | //===----------------------------------------------------------------------===// | |||
65 | // ObjCInterfaceDecl | |||
66 | //===----------------------------------------------------------------------===// | |||
67 | ||||
68 | ObjCContainerDecl::ObjCContainerDecl(Kind DK, DeclContext *DC, | |||
69 | IdentifierInfo *Id, SourceLocation nameLoc, | |||
70 | SourceLocation atStartLoc) | |||
71 | : NamedDecl(DK, DC, nameLoc, Id), DeclContext(DK) { | |||
72 | setAtStartLoc(atStartLoc); | |||
73 | } | |||
74 | ||||
75 | void ObjCContainerDecl::anchor() {} | |||
76 | ||||
77 | /// getIvarDecl - This method looks up an ivar in this ContextDecl. | |||
78 | /// | |||
79 | ObjCIvarDecl * | |||
80 | ObjCContainerDecl::getIvarDecl(IdentifierInfo *Id) const { | |||
81 | lookup_result R = lookup(Id); | |||
82 | for (lookup_iterator Ivar = R.begin(), IvarEnd = R.end(); | |||
83 | Ivar != IvarEnd; ++Ivar) { | |||
84 | if (auto *ivar = dyn_cast<ObjCIvarDecl>(*Ivar)) | |||
85 | return ivar; | |||
86 | } | |||
87 | return nullptr; | |||
88 | } | |||
89 | ||||
90 | // Get the local instance/class method declared in this interface. | |||
91 | ObjCMethodDecl * | |||
92 | ObjCContainerDecl::getMethod(Selector Sel, bool isInstance, | |||
93 | bool AllowHidden) const { | |||
94 | // If this context is a hidden protocol definition, don't find any | |||
95 | // methods there. | |||
96 | if (const auto *Proto = dyn_cast<ObjCProtocolDecl>(this)) { | |||
97 | if (const ObjCProtocolDecl *Def = Proto->getDefinition()) | |||
98 | if (!Def->isUnconditionallyVisible() && !AllowHidden) | |||
99 | return nullptr; | |||
100 | } | |||
101 | ||||
102 | // Since instance & class methods can have the same name, the loop below | |||
103 | // ensures we get the correct method. | |||
104 | // | |||
105 | // @interface Whatever | |||
106 | // - (int) class_method; | |||
107 | // + (float) class_method; | |||
108 | // @end | |||
109 | lookup_result R = lookup(Sel); | |||
110 | for (lookup_iterator Meth = R.begin(), MethEnd = R.end(); | |||
111 | Meth != MethEnd; ++Meth) { | |||
112 | auto *MD = dyn_cast<ObjCMethodDecl>(*Meth); | |||
113 | if (MD && MD->isInstanceMethod() == isInstance) | |||
114 | return MD; | |||
115 | } | |||
116 | return nullptr; | |||
117 | } | |||
118 | ||||
119 | /// This routine returns 'true' if a user declared setter method was | |||
120 | /// found in the class, its protocols, its super classes or categories. | |||
121 | /// It also returns 'true' if one of its categories has declared a 'readwrite' | |||
122 | /// property. This is because, user must provide a setter method for the | |||
123 | /// category's 'readwrite' property. | |||
124 | bool ObjCContainerDecl::HasUserDeclaredSetterMethod( | |||
125 | const ObjCPropertyDecl *Property) const { | |||
126 | Selector Sel = Property->getSetterName(); | |||
127 | lookup_result R = lookup(Sel); | |||
128 | for (lookup_iterator Meth = R.begin(), MethEnd = R.end(); | |||
129 | Meth != MethEnd; ++Meth) { | |||
130 | auto *MD = dyn_cast<ObjCMethodDecl>(*Meth); | |||
131 | if (MD && MD->isInstanceMethod() && !MD->isImplicit()) | |||
132 | return true; | |||
133 | } | |||
134 | ||||
135 | if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(this)) { | |||
136 | // Also look into categories, including class extensions, looking | |||
137 | // for a user declared instance method. | |||
138 | for (const auto *Cat : ID->visible_categories()) { | |||
139 | if (ObjCMethodDecl *MD = Cat->getInstanceMethod(Sel)) | |||
140 | if (!MD->isImplicit()) | |||
141 | return true; | |||
142 | if (Cat->IsClassExtension()) | |||
143 | continue; | |||
144 | // Also search through the categories looking for a 'readwrite' | |||
145 | // declaration of this property. If one found, presumably a setter will | |||
146 | // be provided (properties declared in categories will not get | |||
147 | // auto-synthesized). | |||
148 | for (const auto *P : Cat->properties()) | |||
149 | if (P->getIdentifier() == Property->getIdentifier()) { | |||
150 | if (P->getPropertyAttributes() & | |||
151 | ObjCPropertyAttribute::kind_readwrite) | |||
152 | return true; | |||
153 | break; | |||
154 | } | |||
155 | } | |||
156 | ||||
157 | // Also look into protocols, for a user declared instance method. | |||
158 | for (const auto *Proto : ID->all_referenced_protocols()) | |||
159 | if (Proto->HasUserDeclaredSetterMethod(Property)) | |||
160 | return true; | |||
161 | ||||
162 | // And in its super class. | |||
163 | ObjCInterfaceDecl *OSC = ID->getSuperClass(); | |||
164 | while (OSC) { | |||
165 | if (OSC->HasUserDeclaredSetterMethod(Property)) | |||
166 | return true; | |||
167 | OSC = OSC->getSuperClass(); | |||
168 | } | |||
169 | } | |||
170 | if (const auto *PD = dyn_cast<ObjCProtocolDecl>(this)) | |||
171 | for (const auto *PI : PD->protocols()) | |||
172 | if (PI->HasUserDeclaredSetterMethod(Property)) | |||
173 | return true; | |||
174 | return false; | |||
175 | } | |||
176 | ||||
177 | ObjCPropertyDecl * | |||
178 | ObjCPropertyDecl::findPropertyDecl(const DeclContext *DC, | |||
179 | const IdentifierInfo *propertyID, | |||
180 | ObjCPropertyQueryKind queryKind) { | |||
181 | // If this context is a hidden protocol definition, don't find any | |||
182 | // property. | |||
183 | if (const auto *Proto = dyn_cast<ObjCProtocolDecl>(DC)) { | |||
184 | if (const ObjCProtocolDecl *Def = Proto->getDefinition()) | |||
185 | if (!Def->isUnconditionallyVisible()) | |||
186 | return nullptr; | |||
187 | } | |||
188 | ||||
189 | // If context is class, then lookup property in its visible extensions. | |||
190 | // This comes before property is looked up in primary class. | |||
191 | if (auto *IDecl = dyn_cast<ObjCInterfaceDecl>(DC)) { | |||
192 | for (const auto *Ext : IDecl->visible_extensions()) | |||
193 | if (ObjCPropertyDecl *PD = ObjCPropertyDecl::findPropertyDecl(Ext, | |||
194 | propertyID, | |||
195 | queryKind)) | |||
196 | return PD; | |||
197 | } | |||
198 | ||||
199 | DeclContext::lookup_result R = DC->lookup(propertyID); | |||
200 | ObjCPropertyDecl *classProp = nullptr; | |||
201 | for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E; | |||
202 | ++I) | |||
203 | if (auto *PD = dyn_cast<ObjCPropertyDecl>(*I)) { | |||
204 | // If queryKind is unknown, we return the instance property if one | |||
205 | // exists; otherwise we return the class property. | |||
206 | if ((queryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown && | |||
207 | !PD->isClassProperty()) || | |||
208 | (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_class && | |||
209 | PD->isClassProperty()) || | |||
210 | (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_instance && | |||
211 | !PD->isClassProperty())) | |||
212 | return PD; | |||
213 | ||||
214 | if (PD->isClassProperty()) | |||
215 | classProp = PD; | |||
216 | } | |||
217 | ||||
218 | if (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown) | |||
219 | // We can't find the instance property, return the class property. | |||
220 | return classProp; | |||
221 | ||||
222 | return nullptr; | |||
223 | } | |||
224 | ||||
225 | IdentifierInfo * | |||
226 | ObjCPropertyDecl::getDefaultSynthIvarName(ASTContext &Ctx) const { | |||
227 | SmallString<128> ivarName; | |||
228 | { | |||
229 | llvm::raw_svector_ostream os(ivarName); | |||
230 | os << '_' << getIdentifier()->getName(); | |||
231 | } | |||
232 | return &Ctx.Idents.get(ivarName.str()); | |||
233 | } | |||
234 | ||||
235 | ObjCPropertyDecl *ObjCContainerDecl::getProperty(const IdentifierInfo *Id, | |||
236 | bool IsInstance) const { | |||
237 | for (auto *LookupResult : lookup(Id)) { | |||
238 | if (auto *Prop = dyn_cast<ObjCPropertyDecl>(LookupResult)) { | |||
239 | if (Prop->isInstanceProperty() == IsInstance) { | |||
240 | return Prop; | |||
241 | } | |||
242 | } | |||
243 | } | |||
244 | return nullptr; | |||
245 | } | |||
246 | ||||
247 | /// FindPropertyDeclaration - Finds declaration of the property given its name | |||
248 | /// in 'PropertyId' and returns it. It returns 0, if not found. | |||
249 | ObjCPropertyDecl *ObjCContainerDecl::FindPropertyDeclaration( | |||
250 | const IdentifierInfo *PropertyId, | |||
251 | ObjCPropertyQueryKind QueryKind) const { | |||
252 | // Don't find properties within hidden protocol definitions. | |||
253 | if (const auto *Proto = dyn_cast<ObjCProtocolDecl>(this)) { | |||
254 | if (const ObjCProtocolDecl *Def = Proto->getDefinition()) | |||
255 | if (!Def->isUnconditionallyVisible()) | |||
256 | return nullptr; | |||
257 | } | |||
258 | ||||
259 | // Search the extensions of a class first; they override what's in | |||
260 | // the class itself. | |||
261 | if (const auto *ClassDecl = dyn_cast<ObjCInterfaceDecl>(this)) { | |||
262 | for (const auto *Ext : ClassDecl->visible_extensions()) { | |||
263 | if (auto *P = Ext->FindPropertyDeclaration(PropertyId, QueryKind)) | |||
264 | return P; | |||
265 | } | |||
266 | } | |||
267 | ||||
268 | if (ObjCPropertyDecl *PD = | |||
269 | ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(this), PropertyId, | |||
270 | QueryKind)) | |||
271 | return PD; | |||
272 | ||||
273 | switch (getKind()) { | |||
274 | default: | |||
275 | break; | |||
276 | case Decl::ObjCProtocol: { | |||
277 | const auto *PID = cast<ObjCProtocolDecl>(this); | |||
278 | for (const auto *I : PID->protocols()) | |||
279 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
280 | QueryKind)) | |||
281 | return P; | |||
282 | break; | |||
283 | } | |||
284 | case Decl::ObjCInterface: { | |||
285 | const auto *OID = cast<ObjCInterfaceDecl>(this); | |||
286 | // Look through categories (but not extensions; they were handled above). | |||
287 | for (const auto *Cat : OID->visible_categories()) { | |||
288 | if (!Cat->IsClassExtension()) | |||
289 | if (ObjCPropertyDecl *P = Cat->FindPropertyDeclaration( | |||
290 | PropertyId, QueryKind)) | |||
291 | return P; | |||
292 | } | |||
293 | ||||
294 | // Look through protocols. | |||
295 | for (const auto *I : OID->all_referenced_protocols()) | |||
296 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
297 | QueryKind)) | |||
298 | return P; | |||
299 | ||||
300 | // Finally, check the super class. | |||
301 | if (const ObjCInterfaceDecl *superClass = OID->getSuperClass()) | |||
302 | return superClass->FindPropertyDeclaration(PropertyId, QueryKind); | |||
303 | break; | |||
304 | } | |||
305 | case Decl::ObjCCategory: { | |||
306 | const auto *OCD = cast<ObjCCategoryDecl>(this); | |||
307 | // Look through protocols. | |||
308 | if (!OCD->IsClassExtension()) | |||
309 | for (const auto *I : OCD->protocols()) | |||
310 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
311 | QueryKind)) | |||
312 | return P; | |||
313 | break; | |||
314 | } | |||
315 | } | |||
316 | return nullptr; | |||
317 | } | |||
318 | ||||
319 | void ObjCInterfaceDecl::anchor() {} | |||
320 | ||||
321 | ObjCTypeParamList *ObjCInterfaceDecl::getTypeParamList() const { | |||
322 | // If this particular declaration has a type parameter list, return it. | |||
323 | if (ObjCTypeParamList *written = getTypeParamListAsWritten()) | |||
324 | return written; | |||
325 | ||||
326 | // If there is a definition, return its type parameter list. | |||
327 | if (const ObjCInterfaceDecl *def = getDefinition()) | |||
328 | return def->getTypeParamListAsWritten(); | |||
329 | ||||
330 | // Otherwise, look at previous declarations to determine whether any | |||
331 | // of them has a type parameter list, skipping over those | |||
332 | // declarations that do not. | |||
333 | for (const ObjCInterfaceDecl *decl = getMostRecentDecl(); decl; | |||
334 | decl = decl->getPreviousDecl()) { | |||
335 | if (ObjCTypeParamList *written = decl->getTypeParamListAsWritten()) | |||
336 | return written; | |||
337 | } | |||
338 | ||||
339 | return nullptr; | |||
340 | } | |||
341 | ||||
342 | void ObjCInterfaceDecl::setTypeParamList(ObjCTypeParamList *TPL) { | |||
343 | TypeParamList = TPL; | |||
344 | if (!TPL) | |||
345 | return; | |||
346 | // Set the declaration context of each of the type parameters. | |||
347 | for (auto *typeParam : *TypeParamList) | |||
348 | typeParam->setDeclContext(this); | |||
349 | } | |||
350 | ||||
351 | ObjCInterfaceDecl *ObjCInterfaceDecl::getSuperClass() const { | |||
352 | // FIXME: Should make sure no callers ever do this. | |||
353 | if (!hasDefinition()) | |||
354 | return nullptr; | |||
355 | ||||
356 | if (data().ExternallyCompleted) | |||
357 | LoadExternalDefinition(); | |||
358 | ||||
359 | if (const ObjCObjectType *superType = getSuperClassType()) { | |||
360 | if (ObjCInterfaceDecl *superDecl = superType->getInterface()) { | |||
361 | if (ObjCInterfaceDecl *superDef = superDecl->getDefinition()) | |||
362 | return superDef; | |||
363 | ||||
364 | return superDecl; | |||
365 | } | |||
366 | } | |||
367 | ||||
368 | return nullptr; | |||
369 | } | |||
370 | ||||
371 | SourceLocation ObjCInterfaceDecl::getSuperClassLoc() const { | |||
372 | if (TypeSourceInfo *superTInfo = getSuperClassTInfo()) | |||
373 | return superTInfo->getTypeLoc().getBeginLoc(); | |||
374 | ||||
375 | return SourceLocation(); | |||
376 | } | |||
377 | ||||
378 | /// FindPropertyVisibleInPrimaryClass - Finds declaration of the property | |||
379 | /// with name 'PropertyId' in the primary class; including those in protocols | |||
380 | /// (direct or indirect) used by the primary class. | |||
381 | ObjCPropertyDecl * | |||
382 | ObjCInterfaceDecl::FindPropertyVisibleInPrimaryClass( | |||
383 | IdentifierInfo *PropertyId, | |||
384 | ObjCPropertyQueryKind QueryKind) const { | |||
385 | // FIXME: Should make sure no callers ever do this. | |||
386 | if (!hasDefinition()) | |||
387 | return nullptr; | |||
388 | ||||
389 | if (data().ExternallyCompleted) | |||
390 | LoadExternalDefinition(); | |||
391 | ||||
392 | if (ObjCPropertyDecl *PD = | |||
393 | ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(this), PropertyId, | |||
394 | QueryKind)) | |||
395 | return PD; | |||
396 | ||||
397 | // Look through protocols. | |||
398 | for (const auto *I : all_referenced_protocols()) | |||
399 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
400 | QueryKind)) | |||
401 | return P; | |||
402 | ||||
403 | return nullptr; | |||
404 | } | |||
405 | ||||
406 | void ObjCInterfaceDecl::collectPropertiesToImplement(PropertyMap &PM, | |||
407 | PropertyDeclOrder &PO) const { | |||
408 | for (auto *Prop : properties()) { | |||
409 | PM[std::make_pair(Prop->getIdentifier(), Prop->isClassProperty())] = Prop; | |||
410 | PO.push_back(Prop); | |||
411 | } | |||
412 | for (const auto *Ext : known_extensions()) { | |||
413 | const ObjCCategoryDecl *ClassExt = Ext; | |||
414 | for (auto *Prop : ClassExt->properties()) { | |||
415 | PM[std::make_pair(Prop->getIdentifier(), Prop->isClassProperty())] = Prop; | |||
416 | PO.push_back(Prop); | |||
417 | } | |||
418 | } | |||
419 | for (const auto *PI : all_referenced_protocols()) | |||
420 | PI->collectPropertiesToImplement(PM, PO); | |||
421 | // Note, the properties declared only in class extensions are still copied | |||
422 | // into the main @interface's property list, and therefore we don't | |||
423 | // explicitly, have to search class extension properties. | |||
424 | } | |||
425 | ||||
426 | bool ObjCInterfaceDecl::isArcWeakrefUnavailable() const { | |||
427 | const ObjCInterfaceDecl *Class = this; | |||
428 | while (Class) { | |||
429 | if (Class->hasAttr<ArcWeakrefUnavailableAttr>()) | |||
430 | return true; | |||
431 | Class = Class->getSuperClass(); | |||
432 | } | |||
433 | return false; | |||
434 | } | |||
435 | ||||
436 | const ObjCInterfaceDecl *ObjCInterfaceDecl::isObjCRequiresPropertyDefs() const { | |||
437 | const ObjCInterfaceDecl *Class = this; | |||
438 | while (Class) { | |||
439 | if (Class->hasAttr<ObjCRequiresPropertyDefsAttr>()) | |||
440 | return Class; | |||
441 | Class = Class->getSuperClass(); | |||
442 | } | |||
443 | return nullptr; | |||
444 | } | |||
445 | ||||
446 | void ObjCInterfaceDecl::mergeClassExtensionProtocolList( | |||
447 | ObjCProtocolDecl *const* ExtList, unsigned ExtNum, | |||
448 | ASTContext &C) { | |||
449 | if (data().ExternallyCompleted) | |||
450 | LoadExternalDefinition(); | |||
451 | ||||
452 | if (data().AllReferencedProtocols.empty() && | |||
453 | data().ReferencedProtocols.empty()) { | |||
454 | data().AllReferencedProtocols.set(ExtList, ExtNum, C); | |||
455 | return; | |||
456 | } | |||
457 | ||||
458 | // Check for duplicate protocol in class's protocol list. | |||
459 | // This is O(n*m). But it is extremely rare and number of protocols in | |||
460 | // class or its extension are very few. | |||
461 | SmallVector<ObjCProtocolDecl *, 8> ProtocolRefs; | |||
462 | for (unsigned i = 0; i < ExtNum; i++) { | |||
463 | bool protocolExists = false; | |||
464 | ObjCProtocolDecl *ProtoInExtension = ExtList[i]; | |||
465 | for (auto *Proto : all_referenced_protocols()) { | |||
466 | if (C.ProtocolCompatibleWithProtocol(ProtoInExtension, Proto)) { | |||
467 | protocolExists = true; | |||
468 | break; | |||
469 | } | |||
470 | } | |||
471 | // Do we want to warn on a protocol in extension class which | |||
472 | // already exist in the class? Probably not. | |||
473 | if (!protocolExists) | |||
474 | ProtocolRefs.push_back(ProtoInExtension); | |||
475 | } | |||
476 | ||||
477 | if (ProtocolRefs.empty()) | |||
478 | return; | |||
479 | ||||
480 | // Merge ProtocolRefs into class's protocol list; | |||
481 | ProtocolRefs.append(all_referenced_protocol_begin(), | |||
482 | all_referenced_protocol_end()); | |||
483 | ||||
484 | data().AllReferencedProtocols.set(ProtocolRefs.data(), ProtocolRefs.size(),C); | |||
485 | } | |||
486 | ||||
487 | const ObjCInterfaceDecl * | |||
488 | ObjCInterfaceDecl::findInterfaceWithDesignatedInitializers() const { | |||
489 | const ObjCInterfaceDecl *IFace = this; | |||
490 | while (IFace) { | |||
491 | if (IFace->hasDesignatedInitializers()) | |||
492 | return IFace; | |||
493 | if (!IFace->inheritsDesignatedInitializers()) | |||
494 | break; | |||
495 | IFace = IFace->getSuperClass(); | |||
496 | } | |||
497 | return nullptr; | |||
498 | } | |||
499 | ||||
500 | static bool isIntroducingInitializers(const ObjCInterfaceDecl *D) { | |||
501 | for (const auto *MD : D->instance_methods()) { | |||
502 | if (MD->getMethodFamily() == OMF_init && !MD->isOverriding()) | |||
503 | return true; | |||
504 | } | |||
505 | for (const auto *Ext : D->visible_extensions()) { | |||
506 | for (const auto *MD : Ext->instance_methods()) { | |||
507 | if (MD->getMethodFamily() == OMF_init && !MD->isOverriding()) | |||
508 | return true; | |||
509 | } | |||
510 | } | |||
511 | if (const auto *ImplD = D->getImplementation()) { | |||
512 | for (const auto *MD : ImplD->instance_methods()) { | |||
513 | if (MD->getMethodFamily() == OMF_init && !MD->isOverriding()) | |||
514 | return true; | |||
515 | } | |||
516 | } | |||
517 | return false; | |||
518 | } | |||
519 | ||||
520 | bool ObjCInterfaceDecl::inheritsDesignatedInitializers() const { | |||
521 | switch (data().InheritedDesignatedInitializers) { | |||
522 | case DefinitionData::IDI_Inherited: | |||
523 | return true; | |||
524 | case DefinitionData::IDI_NotInherited: | |||
525 | return false; | |||
526 | case DefinitionData::IDI_Unknown: | |||
527 | // If the class introduced initializers we conservatively assume that we | |||
528 | // don't know if any of them is a designated initializer to avoid possible | |||
529 | // misleading warnings. | |||
530 | if (isIntroducingInitializers(this)) { | |||
531 | data().InheritedDesignatedInitializers = DefinitionData::IDI_NotInherited; | |||
532 | } else { | |||
533 | if (auto SuperD = getSuperClass()) { | |||
534 | data().InheritedDesignatedInitializers = | |||
535 | SuperD->declaresOrInheritsDesignatedInitializers() ? | |||
536 | DefinitionData::IDI_Inherited : | |||
537 | DefinitionData::IDI_NotInherited; | |||
538 | } else { | |||
539 | data().InheritedDesignatedInitializers = | |||
540 | DefinitionData::IDI_NotInherited; | |||
541 | } | |||
542 | } | |||
543 | assert(data().InheritedDesignatedInitializers(static_cast <bool> (data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown) ? void (0) : __assert_fail ( "data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown" , "clang/lib/AST/DeclObjC.cpp", 544, __extension__ __PRETTY_FUNCTION__ )) | |||
544 | != DefinitionData::IDI_Unknown)(static_cast <bool> (data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown) ? void (0) : __assert_fail ( "data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown" , "clang/lib/AST/DeclObjC.cpp", 544, __extension__ __PRETTY_FUNCTION__ )); | |||
545 | return data().InheritedDesignatedInitializers == | |||
546 | DefinitionData::IDI_Inherited; | |||
547 | } | |||
548 | ||||
549 | llvm_unreachable("unexpected InheritedDesignatedInitializers value")::llvm::llvm_unreachable_internal("unexpected InheritedDesignatedInitializers value" , "clang/lib/AST/DeclObjC.cpp", 549); | |||
550 | } | |||
551 | ||||
552 | void ObjCInterfaceDecl::getDesignatedInitializers( | |||
553 | llvm::SmallVectorImpl<const ObjCMethodDecl *> &Methods) const { | |||
554 | // Check for a complete definition and recover if not so. | |||
555 | if (!isThisDeclarationADefinition()) | |||
556 | return; | |||
557 | if (data().ExternallyCompleted) | |||
558 | LoadExternalDefinition(); | |||
559 | ||||
560 | const ObjCInterfaceDecl *IFace= findInterfaceWithDesignatedInitializers(); | |||
561 | if (!IFace) | |||
562 | return; | |||
563 | ||||
564 | for (const auto *MD : IFace->instance_methods()) | |||
565 | if (MD->isThisDeclarationADesignatedInitializer()) | |||
566 | Methods.push_back(MD); | |||
567 | for (const auto *Ext : IFace->visible_extensions()) { | |||
568 | for (const auto *MD : Ext->instance_methods()) | |||
569 | if (MD->isThisDeclarationADesignatedInitializer()) | |||
570 | Methods.push_back(MD); | |||
571 | } | |||
572 | } | |||
573 | ||||
574 | bool ObjCInterfaceDecl::isDesignatedInitializer(Selector Sel, | |||
575 | const ObjCMethodDecl **InitMethod) const { | |||
576 | bool HasCompleteDef = isThisDeclarationADefinition(); | |||
577 | // During deserialization the data record for the ObjCInterfaceDecl could | |||
578 | // be made invariant by reusing the canonical decl. Take this into account | |||
579 | // when checking for the complete definition. | |||
580 | if (!HasCompleteDef && getCanonicalDecl()->hasDefinition() && | |||
581 | getCanonicalDecl()->getDefinition() == getDefinition()) | |||
582 | HasCompleteDef = true; | |||
583 | ||||
584 | // Check for a complete definition and recover if not so. | |||
585 | if (!HasCompleteDef) | |||
586 | return false; | |||
587 | ||||
588 | if (data().ExternallyCompleted) | |||
589 | LoadExternalDefinition(); | |||
590 | ||||
591 | const ObjCInterfaceDecl *IFace= findInterfaceWithDesignatedInitializers(); | |||
592 | if (!IFace) | |||
593 | return false; | |||
594 | ||||
595 | if (const ObjCMethodDecl *MD = IFace->getInstanceMethod(Sel)) { | |||
596 | if (MD->isThisDeclarationADesignatedInitializer()) { | |||
597 | if (InitMethod) | |||
598 | *InitMethod = MD; | |||
599 | return true; | |||
600 | } | |||
601 | } | |||
602 | for (const auto *Ext : IFace->visible_extensions()) { | |||
603 | if (const ObjCMethodDecl *MD = Ext->getInstanceMethod(Sel)) { | |||
604 | if (MD->isThisDeclarationADesignatedInitializer()) { | |||
605 | if (InitMethod) | |||
606 | *InitMethod = MD; | |||
607 | return true; | |||
608 | } | |||
609 | } | |||
610 | } | |||
611 | return false; | |||
612 | } | |||
613 | ||||
614 | void ObjCInterfaceDecl::allocateDefinitionData() { | |||
615 | assert(!hasDefinition() && "ObjC class already has a definition")(static_cast <bool> (!hasDefinition() && "ObjC class already has a definition" ) ? void (0) : __assert_fail ("!hasDefinition() && \"ObjC class already has a definition\"" , "clang/lib/AST/DeclObjC.cpp", 615, __extension__ __PRETTY_FUNCTION__ )); | |||
616 | Data.setPointer(new (getASTContext()) DefinitionData()); | |||
617 | Data.getPointer()->Definition = this; | |||
618 | } | |||
619 | ||||
620 | void ObjCInterfaceDecl::startDefinition() { | |||
621 | allocateDefinitionData(); | |||
622 | ||||
623 | // Update all of the declarations with a pointer to the definition. | |||
624 | for (auto *RD : redecls()) { | |||
625 | if (RD != this) | |||
626 | RD->Data = Data; | |||
627 | } | |||
628 | } | |||
629 | ||||
630 | ObjCIvarDecl *ObjCInterfaceDecl::lookupInstanceVariable(IdentifierInfo *ID, | |||
631 | ObjCInterfaceDecl *&clsDeclared) { | |||
632 | // FIXME: Should make sure no callers ever do this. | |||
633 | if (!hasDefinition()) | |||
634 | return nullptr; | |||
635 | ||||
636 | if (data().ExternallyCompleted) | |||
637 | LoadExternalDefinition(); | |||
638 | ||||
639 | ObjCInterfaceDecl* ClassDecl = this; | |||
640 | while (ClassDecl != nullptr) { | |||
641 | if (ObjCIvarDecl *I = ClassDecl->getIvarDecl(ID)) { | |||
642 | clsDeclared = ClassDecl; | |||
643 | return I; | |||
644 | } | |||
645 | ||||
646 | for (const auto *Ext : ClassDecl->visible_extensions()) { | |||
647 | if (ObjCIvarDecl *I = Ext->getIvarDecl(ID)) { | |||
648 | clsDeclared = ClassDecl; | |||
649 | return I; | |||
650 | } | |||
651 | } | |||
652 | ||||
653 | ClassDecl = ClassDecl->getSuperClass(); | |||
654 | } | |||
655 | return nullptr; | |||
656 | } | |||
657 | ||||
658 | /// lookupInheritedClass - This method returns ObjCInterfaceDecl * of the super | |||
659 | /// class whose name is passed as argument. If it is not one of the super classes | |||
660 | /// the it returns NULL. | |||
661 | ObjCInterfaceDecl *ObjCInterfaceDecl::lookupInheritedClass( | |||
662 | const IdentifierInfo*ICName) { | |||
663 | // FIXME: Should make sure no callers ever do this. | |||
664 | if (!hasDefinition()) | |||
665 | return nullptr; | |||
666 | ||||
667 | if (data().ExternallyCompleted) | |||
668 | LoadExternalDefinition(); | |||
669 | ||||
670 | ObjCInterfaceDecl* ClassDecl = this; | |||
671 | while (ClassDecl != nullptr) { | |||
672 | if (ClassDecl->getIdentifier() == ICName) | |||
673 | return ClassDecl; | |||
674 | ClassDecl = ClassDecl->getSuperClass(); | |||
675 | } | |||
676 | return nullptr; | |||
677 | } | |||
678 | ||||
679 | ObjCProtocolDecl * | |||
680 | ObjCInterfaceDecl::lookupNestedProtocol(IdentifierInfo *Name) { | |||
681 | for (auto *P : all_referenced_protocols()) | |||
682 | if (P->lookupProtocolNamed(Name)) | |||
683 | return P; | |||
684 | ObjCInterfaceDecl *SuperClass = getSuperClass(); | |||
685 | return SuperClass ? SuperClass->lookupNestedProtocol(Name) : nullptr; | |||
686 | } | |||
687 | ||||
688 | /// lookupMethod - This method returns an instance/class method by looking in | |||
689 | /// the class, its categories, and its super classes (using a linear search). | |||
690 | /// When argument category "C" is specified, any implicit method found | |||
691 | /// in this category is ignored. | |||
692 | ObjCMethodDecl *ObjCInterfaceDecl::lookupMethod(Selector Sel, | |||
693 | bool isInstance, | |||
694 | bool shallowCategoryLookup, | |||
695 | bool followSuper, | |||
696 | const ObjCCategoryDecl *C) const | |||
697 | { | |||
698 | // FIXME: Should make sure no callers ever do this. | |||
699 | if (!hasDefinition()) | |||
700 | return nullptr; | |||
701 | ||||
702 | const ObjCInterfaceDecl* ClassDecl = this; | |||
703 | ObjCMethodDecl *MethodDecl = nullptr; | |||
704 | ||||
705 | if (data().ExternallyCompleted) | |||
706 | LoadExternalDefinition(); | |||
707 | ||||
708 | while (ClassDecl) { | |||
709 | // 1. Look through primary class. | |||
710 | if ((MethodDecl = ClassDecl->getMethod(Sel, isInstance))) | |||
711 | return MethodDecl; | |||
712 | ||||
713 | // 2. Didn't find one yet - now look through categories. | |||
714 | for (const auto *Cat : ClassDecl->visible_categories()) | |||
715 | if ((MethodDecl = Cat->getMethod(Sel, isInstance))) | |||
716 | if (C != Cat || !MethodDecl->isImplicit()) | |||
717 | return MethodDecl; | |||
718 | ||||
719 | // 3. Didn't find one yet - look through primary class's protocols. | |||
720 | for (const auto *I : ClassDecl->protocols()) | |||
721 | if ((MethodDecl = I->lookupMethod(Sel, isInstance))) | |||
722 | return MethodDecl; | |||
723 | ||||
724 | // 4. Didn't find one yet - now look through categories' protocols | |||
725 | if (!shallowCategoryLookup) | |||
726 | for (const auto *Cat : ClassDecl->visible_categories()) { | |||
727 | // Didn't find one yet - look through protocols. | |||
728 | const ObjCList<ObjCProtocolDecl> &Protocols = | |||
729 | Cat->getReferencedProtocols(); | |||
730 | for (auto *Protocol : Protocols) | |||
731 | if ((MethodDecl = Protocol->lookupMethod(Sel, isInstance))) | |||
732 | if (C != Cat || !MethodDecl->isImplicit()) | |||
733 | return MethodDecl; | |||
734 | } | |||
735 | ||||
736 | ||||
737 | if (!followSuper) | |||
738 | return nullptr; | |||
739 | ||||
740 | // 5. Get to the super class (if any). | |||
741 | ClassDecl = ClassDecl->getSuperClass(); | |||
742 | } | |||
743 | return nullptr; | |||
744 | } | |||
745 | ||||
746 | // Will search "local" class/category implementations for a method decl. | |||
747 | // If failed, then we search in class's root for an instance method. | |||
748 | // Returns 0 if no method is found. | |||
749 | ObjCMethodDecl *ObjCInterfaceDecl::lookupPrivateMethod( | |||
750 | const Selector &Sel, | |||
751 | bool Instance) const { | |||
752 | // FIXME: Should make sure no callers ever do this. | |||
753 | if (!hasDefinition()) | |||
754 | return nullptr; | |||
755 | ||||
756 | if (data().ExternallyCompleted) | |||
757 | LoadExternalDefinition(); | |||
758 | ||||
759 | ObjCMethodDecl *Method = nullptr; | |||
760 | if (ObjCImplementationDecl *ImpDecl = getImplementation()) | |||
761 | Method = Instance ? ImpDecl->getInstanceMethod(Sel) | |||
762 | : ImpDecl->getClassMethod(Sel); | |||
763 | ||||
764 | // Look through local category implementations associated with the class. | |||
765 | if (!Method) | |||
766 | Method = getCategoryMethod(Sel, Instance); | |||
767 | ||||
768 | // Before we give up, check if the selector is an instance method. | |||
769 | // But only in the root. This matches gcc's behavior and what the | |||
770 | // runtime expects. | |||
771 | if (!Instance && !Method && !getSuperClass()) { | |||
772 | Method = lookupInstanceMethod(Sel); | |||
773 | // Look through local category implementations associated | |||
774 | // with the root class. | |||
775 | if (!Method) | |||
776 | Method = lookupPrivateMethod(Sel, true); | |||
777 | } | |||
778 | ||||
779 | if (!Method && getSuperClass()) | |||
780 | return getSuperClass()->lookupPrivateMethod(Sel, Instance); | |||
781 | return Method; | |||
782 | } | |||
783 | ||||
784 | //===----------------------------------------------------------------------===// | |||
785 | // ObjCMethodDecl | |||
786 | //===----------------------------------------------------------------------===// | |||
787 | ||||
788 | ObjCMethodDecl::ObjCMethodDecl( | |||
789 | SourceLocation beginLoc, SourceLocation endLoc, Selector SelInfo, | |||
790 | QualType T, TypeSourceInfo *ReturnTInfo, DeclContext *contextDecl, | |||
791 | bool isInstance, bool isVariadic, bool isPropertyAccessor, | |||
792 | bool isSynthesizedAccessorStub, bool isImplicitlyDeclared, bool isDefined, | |||
793 | ImplementationControl impControl, bool HasRelatedResultType) | |||
794 | : NamedDecl(ObjCMethod, contextDecl, beginLoc, SelInfo), | |||
795 | DeclContext(ObjCMethod), MethodDeclType(T), ReturnTInfo(ReturnTInfo), | |||
796 | DeclEndLoc(endLoc) { | |||
797 | ||||
798 | // Initialized the bits stored in DeclContext. | |||
799 | ObjCMethodDeclBits.Family = | |||
800 | static_cast<ObjCMethodFamily>(InvalidObjCMethodFamily); | |||
801 | setInstanceMethod(isInstance); | |||
802 | setVariadic(isVariadic); | |||
803 | setPropertyAccessor(isPropertyAccessor); | |||
804 | setSynthesizedAccessorStub(isSynthesizedAccessorStub); | |||
805 | setDefined(isDefined); | |||
806 | setIsRedeclaration(false); | |||
807 | setHasRedeclaration(false); | |||
808 | setDeclImplementation(impControl); | |||
809 | setObjCDeclQualifier(OBJC_TQ_None); | |||
810 | setRelatedResultType(HasRelatedResultType); | |||
811 | setSelLocsKind(SelLoc_StandardNoSpace); | |||
812 | setOverriding(false); | |||
813 | setHasSkippedBody(false); | |||
814 | ||||
815 | setImplicit(isImplicitlyDeclared); | |||
816 | } | |||
817 | ||||
818 | ObjCMethodDecl *ObjCMethodDecl::Create( | |||
819 | ASTContext &C, SourceLocation beginLoc, SourceLocation endLoc, | |||
820 | Selector SelInfo, QualType T, TypeSourceInfo *ReturnTInfo, | |||
821 | DeclContext *contextDecl, bool isInstance, bool isVariadic, | |||
822 | bool isPropertyAccessor, bool isSynthesizedAccessorStub, | |||
823 | bool isImplicitlyDeclared, bool isDefined, ImplementationControl impControl, | |||
824 | bool HasRelatedResultType) { | |||
825 | return new (C, contextDecl) ObjCMethodDecl( | |||
826 | beginLoc, endLoc, SelInfo, T, ReturnTInfo, contextDecl, isInstance, | |||
827 | isVariadic, isPropertyAccessor, isSynthesizedAccessorStub, | |||
828 | isImplicitlyDeclared, isDefined, impControl, HasRelatedResultType); | |||
829 | } | |||
830 | ||||
831 | ObjCMethodDecl *ObjCMethodDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
832 | return new (C, ID) ObjCMethodDecl(SourceLocation(), SourceLocation(), | |||
833 | Selector(), QualType(), nullptr, nullptr); | |||
834 | } | |||
835 | ||||
836 | bool ObjCMethodDecl::isDirectMethod() const { | |||
837 | return hasAttr<ObjCDirectAttr>() && | |||
838 | !getASTContext().getLangOpts().ObjCDisableDirectMethodsForTesting; | |||
839 | } | |||
840 | ||||
841 | bool ObjCMethodDecl::isThisDeclarationADesignatedInitializer() const { | |||
842 | return getMethodFamily() == OMF_init && | |||
843 | hasAttr<ObjCDesignatedInitializerAttr>(); | |||
844 | } | |||
845 | ||||
846 | bool ObjCMethodDecl::definedInNSObject(const ASTContext &Ctx) const { | |||
847 | if (const auto *PD = dyn_cast<const ObjCProtocolDecl>(getDeclContext())) | |||
848 | return PD->getIdentifier() == Ctx.getNSObjectName(); | |||
849 | if (const auto *ID = dyn_cast<const ObjCInterfaceDecl>(getDeclContext())) | |||
850 | return ID->getIdentifier() == Ctx.getNSObjectName(); | |||
851 | return false; | |||
852 | } | |||
853 | ||||
854 | bool ObjCMethodDecl::isDesignatedInitializerForTheInterface( | |||
855 | const ObjCMethodDecl **InitMethod) const { | |||
856 | if (getMethodFamily() != OMF_init) | |||
857 | return false; | |||
858 | const DeclContext *DC = getDeclContext(); | |||
859 | if (isa<ObjCProtocolDecl>(DC)) | |||
860 | return false; | |||
861 | if (const ObjCInterfaceDecl *ID = getClassInterface()) | |||
862 | return ID->isDesignatedInitializer(getSelector(), InitMethod); | |||
863 | return false; | |||
864 | } | |||
865 | ||||
866 | bool ObjCMethodDecl::hasParamDestroyedInCallee() const { | |||
867 | for (auto param : parameters()) { | |||
868 | if (param->isDestroyedInCallee()) | |||
869 | return true; | |||
870 | } | |||
871 | return false; | |||
872 | } | |||
873 | ||||
874 | Stmt *ObjCMethodDecl::getBody() const { | |||
875 | return Body.get(getASTContext().getExternalSource()); | |||
876 | } | |||
877 | ||||
878 | void ObjCMethodDecl::setAsRedeclaration(const ObjCMethodDecl *PrevMethod) { | |||
879 | assert(PrevMethod)(static_cast <bool> (PrevMethod) ? void (0) : __assert_fail ("PrevMethod", "clang/lib/AST/DeclObjC.cpp", 879, __extension__ __PRETTY_FUNCTION__)); | |||
880 | getASTContext().setObjCMethodRedeclaration(PrevMethod, this); | |||
881 | setIsRedeclaration(true); | |||
882 | PrevMethod->setHasRedeclaration(true); | |||
883 | } | |||
884 | ||||
885 | void ObjCMethodDecl::setParamsAndSelLocs(ASTContext &C, | |||
886 | ArrayRef<ParmVarDecl*> Params, | |||
887 | ArrayRef<SourceLocation> SelLocs) { | |||
888 | ParamsAndSelLocs = nullptr; | |||
889 | NumParams = Params.size(); | |||
890 | if (Params.empty() && SelLocs.empty()) | |||
891 | return; | |||
892 | ||||
893 | static_assert(alignof(ParmVarDecl *) >= alignof(SourceLocation), | |||
894 | "Alignment not sufficient for SourceLocation"); | |||
895 | ||||
896 | unsigned Size = sizeof(ParmVarDecl *) * NumParams + | |||
897 | sizeof(SourceLocation) * SelLocs.size(); | |||
898 | ParamsAndSelLocs = C.Allocate(Size); | |||
899 | std::copy(Params.begin(), Params.end(), getParams()); | |||
900 | std::copy(SelLocs.begin(), SelLocs.end(), getStoredSelLocs()); | |||
901 | } | |||
902 | ||||
903 | void ObjCMethodDecl::getSelectorLocs( | |||
904 | SmallVectorImpl<SourceLocation> &SelLocs) const { | |||
905 | for (unsigned i = 0, e = getNumSelectorLocs(); i != e; ++i) | |||
906 | SelLocs.push_back(getSelectorLoc(i)); | |||
907 | } | |||
908 | ||||
909 | void ObjCMethodDecl::setMethodParams(ASTContext &C, | |||
910 | ArrayRef<ParmVarDecl*> Params, | |||
911 | ArrayRef<SourceLocation> SelLocs) { | |||
912 | assert((!SelLocs.empty() || isImplicit()) &&(static_cast <bool> ((!SelLocs.empty() || isImplicit()) && "No selector locs for non-implicit method") ? void (0) : __assert_fail ("(!SelLocs.empty() || isImplicit()) && \"No selector locs for non-implicit method\"" , "clang/lib/AST/DeclObjC.cpp", 913, __extension__ __PRETTY_FUNCTION__ )) | |||
913 | "No selector locs for non-implicit method")(static_cast <bool> ((!SelLocs.empty() || isImplicit()) && "No selector locs for non-implicit method") ? void (0) : __assert_fail ("(!SelLocs.empty() || isImplicit()) && \"No selector locs for non-implicit method\"" , "clang/lib/AST/DeclObjC.cpp", 913, __extension__ __PRETTY_FUNCTION__ )); | |||
914 | if (isImplicit()) | |||
915 | return setParamsAndSelLocs(C, Params, llvm::None); | |||
916 | ||||
917 | setSelLocsKind(hasStandardSelectorLocs(getSelector(), SelLocs, Params, | |||
918 | DeclEndLoc)); | |||
919 | if (getSelLocsKind() != SelLoc_NonStandard) | |||
920 | return setParamsAndSelLocs(C, Params, llvm::None); | |||
921 | ||||
922 | setParamsAndSelLocs(C, Params, SelLocs); | |||
923 | } | |||
924 | ||||
925 | /// A definition will return its interface declaration. | |||
926 | /// An interface declaration will return its definition. | |||
927 | /// Otherwise it will return itself. | |||
928 | ObjCMethodDecl *ObjCMethodDecl::getNextRedeclarationImpl() { | |||
929 | ASTContext &Ctx = getASTContext(); | |||
930 | ObjCMethodDecl *Redecl = nullptr; | |||
931 | if (hasRedeclaration()) | |||
932 | Redecl = const_cast<ObjCMethodDecl*>(Ctx.getObjCMethodRedeclaration(this)); | |||
933 | if (Redecl) | |||
934 | return Redecl; | |||
935 | ||||
936 | auto *CtxD = cast<Decl>(getDeclContext()); | |||
937 | ||||
938 | if (!CtxD->isInvalidDecl()) { | |||
939 | if (auto *IFD = dyn_cast<ObjCInterfaceDecl>(CtxD)) { | |||
940 | if (ObjCImplementationDecl *ImplD = Ctx.getObjCImplementation(IFD)) | |||
941 | if (!ImplD->isInvalidDecl()) | |||
942 | Redecl = ImplD->getMethod(getSelector(), isInstanceMethod()); | |||
943 | ||||
944 | } else if (auto *CD = dyn_cast<ObjCCategoryDecl>(CtxD)) { | |||
945 | if (ObjCCategoryImplDecl *ImplD = Ctx.getObjCImplementation(CD)) | |||
946 | if (!ImplD->isInvalidDecl()) | |||
947 | Redecl = ImplD->getMethod(getSelector(), isInstanceMethod()); | |||
948 | ||||
949 | } else if (auto *ImplD = dyn_cast<ObjCImplementationDecl>(CtxD)) { | |||
950 | if (ObjCInterfaceDecl *IFD = ImplD->getClassInterface()) | |||
951 | if (!IFD->isInvalidDecl()) | |||
952 | Redecl = IFD->getMethod(getSelector(), isInstanceMethod()); | |||
953 | ||||
954 | } else if (auto *CImplD = dyn_cast<ObjCCategoryImplDecl>(CtxD)) { | |||
955 | if (ObjCCategoryDecl *CatD = CImplD->getCategoryDecl()) | |||
956 | if (!CatD->isInvalidDecl()) | |||
957 | Redecl = CatD->getMethod(getSelector(), isInstanceMethod()); | |||
958 | } | |||
959 | } | |||
960 | ||||
961 | // Ensure that the discovered method redeclaration has a valid declaration | |||
962 | // context. Used to prevent infinite loops when iterating redeclarations in | |||
963 | // a partially invalid AST. | |||
964 | if (Redecl && cast<Decl>(Redecl->getDeclContext())->isInvalidDecl()) | |||
965 | Redecl = nullptr; | |||
966 | ||||
967 | if (!Redecl && isRedeclaration()) { | |||
968 | // This is the last redeclaration, go back to the first method. | |||
969 | return cast<ObjCContainerDecl>(CtxD)->getMethod(getSelector(), | |||
970 | isInstanceMethod(), | |||
971 | /*AllowHidden=*/true); | |||
972 | } | |||
973 | ||||
974 | return Redecl ? Redecl : this; | |||
975 | } | |||
976 | ||||
977 | ObjCMethodDecl *ObjCMethodDecl::getCanonicalDecl() { | |||
978 | auto *CtxD = cast<Decl>(getDeclContext()); | |||
979 | const auto &Sel = getSelector(); | |||
980 | ||||
981 | if (auto *ImplD = dyn_cast<ObjCImplementationDecl>(CtxD)) { | |||
982 | if (ObjCInterfaceDecl *IFD = ImplD->getClassInterface()) { | |||
983 | // When the container is the ObjCImplementationDecl (the primary | |||
984 | // @implementation), then the canonical Decl is either in | |||
985 | // the class Interface, or in any of its extension. | |||
986 | // | |||
987 | // So when we don't find it in the ObjCInterfaceDecl, | |||
988 | // sift through extensions too. | |||
989 | if (ObjCMethodDecl *MD = IFD->getMethod(Sel, isInstanceMethod())) | |||
990 | return MD; | |||
991 | for (auto *Ext : IFD->known_extensions()) | |||
992 | if (ObjCMethodDecl *MD = Ext->getMethod(Sel, isInstanceMethod())) | |||
993 | return MD; | |||
994 | } | |||
995 | } else if (auto *CImplD = dyn_cast<ObjCCategoryImplDecl>(CtxD)) { | |||
996 | if (ObjCCategoryDecl *CatD = CImplD->getCategoryDecl()) | |||
997 | if (ObjCMethodDecl *MD = CatD->getMethod(Sel, isInstanceMethod())) | |||
998 | return MD; | |||
999 | } | |||
1000 | ||||
1001 | if (isRedeclaration()) { | |||
1002 | // It is possible that we have not done deserializing the ObjCMethod yet. | |||
1003 | ObjCMethodDecl *MD = | |||
1004 | cast<ObjCContainerDecl>(CtxD)->getMethod(Sel, isInstanceMethod(), | |||
1005 | /*AllowHidden=*/true); | |||
1006 | return MD ? MD : this; | |||
1007 | } | |||
1008 | ||||
1009 | return this; | |||
1010 | } | |||
1011 | ||||
1012 | SourceLocation ObjCMethodDecl::getEndLoc() const { | |||
1013 | if (Stmt *Body = getBody()) | |||
1014 | return Body->getEndLoc(); | |||
1015 | return DeclEndLoc; | |||
1016 | } | |||
1017 | ||||
1018 | ObjCMethodFamily ObjCMethodDecl::getMethodFamily() const { | |||
1019 | auto family = static_cast<ObjCMethodFamily>(ObjCMethodDeclBits.Family); | |||
1020 | if (family != static_cast<unsigned>(InvalidObjCMethodFamily)) | |||
1021 | return family; | |||
1022 | ||||
1023 | // Check for an explicit attribute. | |||
1024 | if (const ObjCMethodFamilyAttr *attr = getAttr<ObjCMethodFamilyAttr>()) { | |||
1025 | // The unfortunate necessity of mapping between enums here is due | |||
1026 | // to the attributes framework. | |||
1027 | switch (attr->getFamily()) { | |||
1028 | case ObjCMethodFamilyAttr::OMF_None: family = OMF_None; break; | |||
1029 | case ObjCMethodFamilyAttr::OMF_alloc: family = OMF_alloc; break; | |||
1030 | case ObjCMethodFamilyAttr::OMF_copy: family = OMF_copy; break; | |||
1031 | case ObjCMethodFamilyAttr::OMF_init: family = OMF_init; break; | |||
1032 | case ObjCMethodFamilyAttr::OMF_mutableCopy: family = OMF_mutableCopy; break; | |||
1033 | case ObjCMethodFamilyAttr::OMF_new: family = OMF_new; break; | |||
1034 | } | |||
1035 | ObjCMethodDeclBits.Family = family; | |||
1036 | return family; | |||
1037 | } | |||
1038 | ||||
1039 | family = getSelector().getMethodFamily(); | |||
1040 | switch (family) { | |||
1041 | case OMF_None: break; | |||
1042 | ||||
1043 | // init only has a conventional meaning for an instance method, and | |||
1044 | // it has to return an object. | |||
1045 | case OMF_init: | |||
1046 | if (!isInstanceMethod() || !getReturnType()->isObjCObjectPointerType()) | |||
1047 | family = OMF_None; | |||
1048 | break; | |||
1049 | ||||
1050 | // alloc/copy/new have a conventional meaning for both class and | |||
1051 | // instance methods, but they require an object return. | |||
1052 | case OMF_alloc: | |||
1053 | case OMF_copy: | |||
1054 | case OMF_mutableCopy: | |||
1055 | case OMF_new: | |||
1056 | if (!getReturnType()->isObjCObjectPointerType()) | |||
1057 | family = OMF_None; | |||
1058 | break; | |||
1059 | ||||
1060 | // These selectors have a conventional meaning only for instance methods. | |||
1061 | case OMF_dealloc: | |||
1062 | case OMF_finalize: | |||
1063 | case OMF_retain: | |||
1064 | case OMF_release: | |||
1065 | case OMF_autorelease: | |||
1066 | case OMF_retainCount: | |||
1067 | case OMF_self: | |||
1068 | if (!isInstanceMethod()) | |||
1069 | family = OMF_None; | |||
1070 | break; | |||
1071 | ||||
1072 | case OMF_initialize: | |||
1073 | if (isInstanceMethod() || !getReturnType()->isVoidType()) | |||
1074 | family = OMF_None; | |||
1075 | break; | |||
1076 | ||||
1077 | case OMF_performSelector: | |||
1078 | if (!isInstanceMethod() || !getReturnType()->isObjCIdType()) | |||
1079 | family = OMF_None; | |||
1080 | else { | |||
1081 | unsigned noParams = param_size(); | |||
1082 | if (noParams < 1 || noParams > 3) | |||
1083 | family = OMF_None; | |||
1084 | else { | |||
1085 | ObjCMethodDecl::param_type_iterator it = param_type_begin(); | |||
1086 | QualType ArgT = (*it); | |||
1087 | if (!ArgT->isObjCSelType()) { | |||
1088 | family = OMF_None; | |||
1089 | break; | |||
1090 | } | |||
1091 | while (--noParams) { | |||
1092 | it++; | |||
1093 | ArgT = (*it); | |||
1094 | if (!ArgT->isObjCIdType()) { | |||
1095 | family = OMF_None; | |||
1096 | break; | |||
1097 | } | |||
1098 | } | |||
1099 | } | |||
1100 | } | |||
1101 | break; | |||
1102 | ||||
1103 | } | |||
1104 | ||||
1105 | // Cache the result. | |||
1106 | ObjCMethodDeclBits.Family = family; | |||
1107 | return family; | |||
1108 | } | |||
1109 | ||||
1110 | QualType ObjCMethodDecl::getSelfType(ASTContext &Context, | |||
1111 | const ObjCInterfaceDecl *OID, | |||
1112 | bool &selfIsPseudoStrong, | |||
1113 | bool &selfIsConsumed) const { | |||
1114 | QualType selfTy; | |||
1115 | selfIsPseudoStrong = false; | |||
1116 | selfIsConsumed = false; | |||
1117 | if (isInstanceMethod()) { | |||
1118 | // There may be no interface context due to error in declaration | |||
1119 | // of the interface (which has been reported). Recover gracefully. | |||
1120 | if (OID) { | |||
1121 | selfTy = Context.getObjCInterfaceType(OID); | |||
1122 | selfTy = Context.getObjCObjectPointerType(selfTy); | |||
1123 | } else { | |||
1124 | selfTy = Context.getObjCIdType(); | |||
1125 | } | |||
1126 | } else // we have a factory method. | |||
1127 | selfTy = Context.getObjCClassType(); | |||
1128 | ||||
1129 | if (Context.getLangOpts().ObjCAutoRefCount) { | |||
1130 | if (isInstanceMethod()) { | |||
1131 | selfIsConsumed = hasAttr<NSConsumesSelfAttr>(); | |||
1132 | ||||
1133 | // 'self' is always __strong. It's actually pseudo-strong except | |||
1134 | // in init methods (or methods labeled ns_consumes_self), though. | |||
1135 | Qualifiers qs; | |||
1136 | qs.setObjCLifetime(Qualifiers::OCL_Strong); | |||
1137 | selfTy = Context.getQualifiedType(selfTy, qs); | |||
1138 | ||||
1139 | // In addition, 'self' is const unless this is an init method. | |||
1140 | if (getMethodFamily() != OMF_init && !selfIsConsumed) { | |||
1141 | selfTy = selfTy.withConst(); | |||
1142 | selfIsPseudoStrong = true; | |||
1143 | } | |||
1144 | } | |||
1145 | else { | |||
1146 | assert(isClassMethod())(static_cast <bool> (isClassMethod()) ? void (0) : __assert_fail ("isClassMethod()", "clang/lib/AST/DeclObjC.cpp", 1146, __extension__ __PRETTY_FUNCTION__)); | |||
1147 | // 'self' is always const in class methods. | |||
1148 | selfTy = selfTy.withConst(); | |||
1149 | selfIsPseudoStrong = true; | |||
1150 | } | |||
1151 | } | |||
1152 | return selfTy; | |||
1153 | } | |||
1154 | ||||
1155 | void ObjCMethodDecl::createImplicitParams(ASTContext &Context, | |||
1156 | const ObjCInterfaceDecl *OID) { | |||
1157 | bool selfIsPseudoStrong, selfIsConsumed; | |||
1158 | QualType selfTy = | |||
1159 | getSelfType(Context, OID, selfIsPseudoStrong, selfIsConsumed); | |||
1160 | auto *Self = ImplicitParamDecl::Create(Context, this, SourceLocation(), | |||
1161 | &Context.Idents.get("self"), selfTy, | |||
1162 | ImplicitParamDecl::ObjCSelf); | |||
1163 | setSelfDecl(Self); | |||
1164 | ||||
1165 | if (selfIsConsumed) | |||
1166 | Self->addAttr(NSConsumedAttr::CreateImplicit(Context)); | |||
1167 | ||||
1168 | if (selfIsPseudoStrong) | |||
1169 | Self->setARCPseudoStrong(true); | |||
1170 | ||||
1171 | setCmdDecl(ImplicitParamDecl::Create( | |||
1172 | Context, this, SourceLocation(), &Context.Idents.get("_cmd"), | |||
1173 | Context.getObjCSelType(), ImplicitParamDecl::ObjCCmd)); | |||
1174 | } | |||
1175 | ||||
1176 | ObjCInterfaceDecl *ObjCMethodDecl::getClassInterface() { | |||
1177 | if (auto *ID = dyn_cast<ObjCInterfaceDecl>(getDeclContext())) | |||
1178 | return ID; | |||
1179 | if (auto *CD = dyn_cast<ObjCCategoryDecl>(getDeclContext())) | |||
1180 | return CD->getClassInterface(); | |||
1181 | if (auto *IMD = dyn_cast<ObjCImplDecl>(getDeclContext())) | |||
1182 | return IMD->getClassInterface(); | |||
1183 | if (isa<ObjCProtocolDecl>(getDeclContext())) | |||
1184 | return nullptr; | |||
1185 | llvm_unreachable("unknown method context")::llvm::llvm_unreachable_internal("unknown method context", "clang/lib/AST/DeclObjC.cpp" , 1185); | |||
1186 | } | |||
1187 | ||||
1188 | ObjCCategoryDecl *ObjCMethodDecl::getCategory() { | |||
1189 | if (auto *CD = dyn_cast<ObjCCategoryDecl>(getDeclContext())) | |||
1190 | return CD; | |||
1191 | if (auto *IMD = dyn_cast<ObjCCategoryImplDecl>(getDeclContext())) | |||
1192 | return IMD->getCategoryDecl(); | |||
1193 | return nullptr; | |||
1194 | } | |||
1195 | ||||
1196 | SourceRange ObjCMethodDecl::getReturnTypeSourceRange() const { | |||
1197 | const auto *TSI = getReturnTypeSourceInfo(); | |||
1198 | if (TSI) | |||
1199 | return TSI->getTypeLoc().getSourceRange(); | |||
1200 | return SourceRange(); | |||
1201 | } | |||
1202 | ||||
1203 | QualType ObjCMethodDecl::getSendResultType() const { | |||
1204 | ASTContext &Ctx = getASTContext(); | |||
1205 | return getReturnType().getNonLValueExprType(Ctx) | |||
1206 | .substObjCTypeArgs(Ctx, {}, ObjCSubstitutionContext::Result); | |||
1207 | } | |||
1208 | ||||
1209 | QualType ObjCMethodDecl::getSendResultType(QualType receiverType) const { | |||
1210 | // FIXME: Handle related result types here. | |||
1211 | ||||
1212 | return getReturnType().getNonLValueExprType(getASTContext()) | |||
1213 | .substObjCMemberType(receiverType, getDeclContext(), | |||
1214 | ObjCSubstitutionContext::Result); | |||
1215 | } | |||
1216 | ||||
1217 | static void CollectOverriddenMethodsRecurse(const ObjCContainerDecl *Container, | |||
1218 | const ObjCMethodDecl *Method, | |||
1219 | SmallVectorImpl<const ObjCMethodDecl *> &Methods, | |||
1220 | bool MovedToSuper) { | |||
1221 | if (!Container) | |||
1222 | return; | |||
1223 | ||||
1224 | // In categories look for overridden methods from protocols. A method from | |||
1225 | // category is not "overridden" since it is considered as the "same" method | |||
1226 | // (same USR) as the one from the interface. | |||
1227 | if (const auto *Category = dyn_cast<ObjCCategoryDecl>(Container)) { | |||
1228 | // Check whether we have a matching method at this category but only if we | |||
1229 | // are at the super class level. | |||
1230 | if (MovedToSuper) | |||
1231 | if (ObjCMethodDecl * | |||
1232 | Overridden = Container->getMethod(Method->getSelector(), | |||
1233 | Method->isInstanceMethod(), | |||
1234 | /*AllowHidden=*/true)) | |||
1235 | if (Method != Overridden) { | |||
1236 | // We found an override at this category; there is no need to look | |||
1237 | // into its protocols. | |||
1238 | Methods.push_back(Overridden); | |||
1239 | return; | |||
1240 | } | |||
1241 | ||||
1242 | for (const auto *P : Category->protocols()) | |||
1243 | CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper); | |||
1244 | return; | |||
1245 | } | |||
1246 | ||||
1247 | // Check whether we have a matching method at this level. | |||
1248 | if (const ObjCMethodDecl * | |||
1249 | Overridden = Container->getMethod(Method->getSelector(), | |||
1250 | Method->isInstanceMethod(), | |||
1251 | /*AllowHidden=*/true)) | |||
1252 | if (Method != Overridden) { | |||
1253 | // We found an override at this level; there is no need to look | |||
1254 | // into other protocols or categories. | |||
1255 | Methods.push_back(Overridden); | |||
1256 | return; | |||
1257 | } | |||
1258 | ||||
1259 | if (const auto *Protocol = dyn_cast<ObjCProtocolDecl>(Container)){ | |||
1260 | for (const auto *P : Protocol->protocols()) | |||
1261 | CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper); | |||
1262 | } | |||
1263 | ||||
1264 | if (const auto *Interface = dyn_cast<ObjCInterfaceDecl>(Container)) { | |||
1265 | for (const auto *P : Interface->protocols()) | |||
1266 | CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper); | |||
1267 | ||||
1268 | for (const auto *Cat : Interface->known_categories()) | |||
1269 | CollectOverriddenMethodsRecurse(Cat, Method, Methods, MovedToSuper); | |||
1270 | ||||
1271 | if (const ObjCInterfaceDecl *Super = Interface->getSuperClass()) | |||
1272 | return CollectOverriddenMethodsRecurse(Super, Method, Methods, | |||
1273 | /*MovedToSuper=*/true); | |||
1274 | } | |||
1275 | } | |||
1276 | ||||
1277 | static inline void CollectOverriddenMethods(const ObjCContainerDecl *Container, | |||
1278 | const ObjCMethodDecl *Method, | |||
1279 | SmallVectorImpl<const ObjCMethodDecl *> &Methods) { | |||
1280 | CollectOverriddenMethodsRecurse(Container, Method, Methods, | |||
1281 | /*MovedToSuper=*/false); | |||
1282 | } | |||
1283 | ||||
1284 | static void collectOverriddenMethodsSlow(const ObjCMethodDecl *Method, | |||
1285 | SmallVectorImpl<const ObjCMethodDecl *> &overridden) { | |||
1286 | assert(Method->isOverriding())(static_cast <bool> (Method->isOverriding()) ? void ( 0) : __assert_fail ("Method->isOverriding()", "clang/lib/AST/DeclObjC.cpp" , 1286, __extension__ __PRETTY_FUNCTION__)); | |||
1287 | ||||
1288 | if (const auto *ProtD = | |||
1289 | dyn_cast<ObjCProtocolDecl>(Method->getDeclContext())) { | |||
1290 | CollectOverriddenMethods(ProtD, Method, overridden); | |||
1291 | ||||
1292 | } else if (const auto *IMD = | |||
1293 | dyn_cast<ObjCImplDecl>(Method->getDeclContext())) { | |||
1294 | const ObjCInterfaceDecl *ID = IMD->getClassInterface(); | |||
1295 | if (!ID) | |||
1296 | return; | |||
1297 | // Start searching for overridden methods using the method from the | |||
1298 | // interface as starting point. | |||
1299 | if (const ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), | |||
1300 | Method->isInstanceMethod(), | |||
1301 | /*AllowHidden=*/true)) | |||
1302 | Method = IFaceMeth; | |||
1303 | CollectOverriddenMethods(ID, Method, overridden); | |||
1304 | ||||
1305 | } else if (const auto *CatD = | |||
1306 | dyn_cast<ObjCCategoryDecl>(Method->getDeclContext())) { | |||
1307 | const ObjCInterfaceDecl *ID = CatD->getClassInterface(); | |||
1308 | if (!ID) | |||
1309 | return; | |||
1310 | // Start searching for overridden methods using the method from the | |||
1311 | // interface as starting point. | |||
1312 | if (const ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), | |||
1313 | Method->isInstanceMethod(), | |||
1314 | /*AllowHidden=*/true)) | |||
1315 | Method = IFaceMeth; | |||
1316 | CollectOverriddenMethods(ID, Method, overridden); | |||
1317 | ||||
1318 | } else { | |||
1319 | CollectOverriddenMethods( | |||
1320 | dyn_cast_or_null<ObjCContainerDecl>(Method->getDeclContext()), | |||
1321 | Method, overridden); | |||
1322 | } | |||
1323 | } | |||
1324 | ||||
1325 | void ObjCMethodDecl::getOverriddenMethods( | |||
1326 | SmallVectorImpl<const ObjCMethodDecl *> &Overridden) const { | |||
1327 | const ObjCMethodDecl *Method = this; | |||
1328 | ||||
1329 | if (Method->isRedeclaration()) { | |||
1330 | Method = cast<ObjCContainerDecl>(Method->getDeclContext()) | |||
1331 | ->getMethod(Method->getSelector(), Method->isInstanceMethod(), | |||
1332 | /*AllowHidden=*/true); | |||
1333 | } | |||
1334 | ||||
1335 | if (Method->isOverriding()) { | |||
1336 | collectOverriddenMethodsSlow(Method, Overridden); | |||
1337 | assert(!Overridden.empty() &&(static_cast <bool> (!Overridden.empty() && "ObjCMethodDecl's overriding bit is not as expected" ) ? void (0) : __assert_fail ("!Overridden.empty() && \"ObjCMethodDecl's overriding bit is not as expected\"" , "clang/lib/AST/DeclObjC.cpp", 1338, __extension__ __PRETTY_FUNCTION__ )) | |||
1338 | "ObjCMethodDecl's overriding bit is not as expected")(static_cast <bool> (!Overridden.empty() && "ObjCMethodDecl's overriding bit is not as expected" ) ? void (0) : __assert_fail ("!Overridden.empty() && \"ObjCMethodDecl's overriding bit is not as expected\"" , "clang/lib/AST/DeclObjC.cpp", 1338, __extension__ __PRETTY_FUNCTION__ )); | |||
1339 | } | |||
1340 | } | |||
1341 | ||||
1342 | const ObjCPropertyDecl * | |||
1343 | ObjCMethodDecl::findPropertyDecl(bool CheckOverrides) const { | |||
1344 | Selector Sel = getSelector(); | |||
1345 | unsigned NumArgs = Sel.getNumArgs(); | |||
1346 | if (NumArgs > 1) | |||
1347 | return nullptr; | |||
1348 | ||||
1349 | if (isPropertyAccessor()) { | |||
1350 | const auto *Container = cast<ObjCContainerDecl>(getParent()); | |||
1351 | // For accessor stubs, go back to the interface. | |||
1352 | if (auto *ImplDecl = dyn_cast<ObjCImplDecl>(Container)) | |||
1353 | if (isSynthesizedAccessorStub()) | |||
1354 | Container = ImplDecl->getClassInterface(); | |||
1355 | ||||
1356 | bool IsGetter = (NumArgs == 0); | |||
1357 | bool IsInstance = isInstanceMethod(); | |||
1358 | ||||
1359 | /// Local function that attempts to find a matching property within the | |||
1360 | /// given Objective-C container. | |||
1361 | auto findMatchingProperty = | |||
1362 | [&](const ObjCContainerDecl *Container) -> const ObjCPropertyDecl * { | |||
1363 | if (IsInstance) { | |||
1364 | for (const auto *I : Container->instance_properties()) { | |||
1365 | Selector NextSel = IsGetter ? I->getGetterName() | |||
1366 | : I->getSetterName(); | |||
1367 | if (NextSel == Sel) | |||
1368 | return I; | |||
1369 | } | |||
1370 | } else { | |||
1371 | for (const auto *I : Container->class_properties()) { | |||
1372 | Selector NextSel = IsGetter ? I->getGetterName() | |||
1373 | : I->getSetterName(); | |||
1374 | if (NextSel == Sel) | |||
1375 | return I; | |||
1376 | } | |||
1377 | } | |||
1378 | ||||
1379 | return nullptr; | |||
1380 | }; | |||
1381 | ||||
1382 | // Look in the container we were given. | |||
1383 | if (const auto *Found = findMatchingProperty(Container)) | |||
1384 | return Found; | |||
1385 | ||||
1386 | // If we're in a category or extension, look in the main class. | |||
1387 | const ObjCInterfaceDecl *ClassDecl = nullptr; | |||
1388 | if (const auto *Category = dyn_cast<ObjCCategoryDecl>(Container)) { | |||
1389 | ClassDecl = Category->getClassInterface(); | |||
1390 | if (const auto *Found = findMatchingProperty(ClassDecl)) | |||
1391 | return Found; | |||
1392 | } else { | |||
1393 | // Determine whether the container is a class. | |||
1394 | ClassDecl = cast<ObjCInterfaceDecl>(Container); | |||
1395 | } | |||
1396 | assert(ClassDecl && "Failed to find main class")(static_cast <bool> (ClassDecl && "Failed to find main class" ) ? void (0) : __assert_fail ("ClassDecl && \"Failed to find main class\"" , "clang/lib/AST/DeclObjC.cpp", 1396, __extension__ __PRETTY_FUNCTION__ )); | |||
1397 | ||||
1398 | // If we have a class, check its visible extensions. | |||
1399 | for (const auto *Ext : ClassDecl->visible_extensions()) { | |||
1400 | if (Ext == Container) | |||
1401 | continue; | |||
1402 | if (const auto *Found = findMatchingProperty(Ext)) | |||
1403 | return Found; | |||
1404 | } | |||
1405 | ||||
1406 | assert(isSynthesizedAccessorStub() && "expected an accessor stub")(static_cast <bool> (isSynthesizedAccessorStub() && "expected an accessor stub") ? void (0) : __assert_fail ("isSynthesizedAccessorStub() && \"expected an accessor stub\"" , "clang/lib/AST/DeclObjC.cpp", 1406, __extension__ __PRETTY_FUNCTION__ )); | |||
1407 | ||||
1408 | for (const auto *Cat : ClassDecl->known_categories()) { | |||
1409 | if (Cat == Container) | |||
1410 | continue; | |||
1411 | if (const auto *Found = findMatchingProperty(Cat)) | |||
1412 | return Found; | |||
1413 | } | |||
1414 | ||||
1415 | llvm_unreachable("Marked as a property accessor but no property found!")::llvm::llvm_unreachable_internal("Marked as a property accessor but no property found!" , "clang/lib/AST/DeclObjC.cpp", 1415); | |||
1416 | } | |||
1417 | ||||
1418 | if (!CheckOverrides) | |||
1419 | return nullptr; | |||
1420 | ||||
1421 | using OverridesTy = SmallVector<const ObjCMethodDecl *, 8>; | |||
1422 | ||||
1423 | OverridesTy Overrides; | |||
1424 | getOverriddenMethods(Overrides); | |||
1425 | for (const auto *Override : Overrides) | |||
1426 | if (const ObjCPropertyDecl *Prop = Override->findPropertyDecl(false)) | |||
1427 | return Prop; | |||
1428 | ||||
1429 | return nullptr; | |||
1430 | } | |||
1431 | ||||
1432 | //===----------------------------------------------------------------------===// | |||
1433 | // ObjCTypeParamDecl | |||
1434 | //===----------------------------------------------------------------------===// | |||
1435 | ||||
1436 | void ObjCTypeParamDecl::anchor() {} | |||
1437 | ||||
1438 | ObjCTypeParamDecl *ObjCTypeParamDecl::Create(ASTContext &ctx, DeclContext *dc, | |||
1439 | ObjCTypeParamVariance variance, | |||
1440 | SourceLocation varianceLoc, | |||
1441 | unsigned index, | |||
1442 | SourceLocation nameLoc, | |||
1443 | IdentifierInfo *name, | |||
1444 | SourceLocation colonLoc, | |||
1445 | TypeSourceInfo *boundInfo) { | |||
1446 | auto *TPDecl = | |||
1447 | new (ctx, dc) ObjCTypeParamDecl(ctx, dc, variance, varianceLoc, index, | |||
1448 | nameLoc, name, colonLoc, boundInfo); | |||
1449 | QualType TPType = ctx.getObjCTypeParamType(TPDecl, {}); | |||
1450 | TPDecl->setTypeForDecl(TPType.getTypePtr()); | |||
1451 | return TPDecl; | |||
1452 | } | |||
1453 | ||||
1454 | ObjCTypeParamDecl *ObjCTypeParamDecl::CreateDeserialized(ASTContext &ctx, | |||
1455 | unsigned ID) { | |||
1456 | return new (ctx, ID) ObjCTypeParamDecl(ctx, nullptr, | |||
1457 | ObjCTypeParamVariance::Invariant, | |||
1458 | SourceLocation(), 0, SourceLocation(), | |||
1459 | nullptr, SourceLocation(), nullptr); | |||
1460 | } | |||
1461 | ||||
1462 | SourceRange ObjCTypeParamDecl::getSourceRange() const { | |||
1463 | SourceLocation startLoc = VarianceLoc; | |||
1464 | if (startLoc.isInvalid()) | |||
1465 | startLoc = getLocation(); | |||
1466 | ||||
1467 | if (hasExplicitBound()) { | |||
1468 | return SourceRange(startLoc, | |||
1469 | getTypeSourceInfo()->getTypeLoc().getEndLoc()); | |||
1470 | } | |||
1471 | ||||
1472 | return SourceRange(startLoc); | |||
1473 | } | |||
1474 | ||||
1475 | //===----------------------------------------------------------------------===// | |||
1476 | // ObjCTypeParamList | |||
1477 | //===----------------------------------------------------------------------===// | |||
1478 | ObjCTypeParamList::ObjCTypeParamList(SourceLocation lAngleLoc, | |||
1479 | ArrayRef<ObjCTypeParamDecl *> typeParams, | |||
1480 | SourceLocation rAngleLoc) | |||
1481 | : Brackets(lAngleLoc, rAngleLoc), NumParams(typeParams.size()) { | |||
1482 | std::copy(typeParams.begin(), typeParams.end(), begin()); | |||
1483 | } | |||
1484 | ||||
1485 | ObjCTypeParamList *ObjCTypeParamList::create( | |||
1486 | ASTContext &ctx, | |||
1487 | SourceLocation lAngleLoc, | |||
1488 | ArrayRef<ObjCTypeParamDecl *> typeParams, | |||
1489 | SourceLocation rAngleLoc) { | |||
1490 | void *mem = | |||
1491 | ctx.Allocate(totalSizeToAlloc<ObjCTypeParamDecl *>(typeParams.size()), | |||
1492 | alignof(ObjCTypeParamList)); | |||
1493 | return new (mem) ObjCTypeParamList(lAngleLoc, typeParams, rAngleLoc); | |||
1494 | } | |||
1495 | ||||
1496 | void ObjCTypeParamList::gatherDefaultTypeArgs( | |||
1497 | SmallVectorImpl<QualType> &typeArgs) const { | |||
1498 | typeArgs.reserve(size()); | |||
1499 | for (auto typeParam : *this) | |||
1500 | typeArgs.push_back(typeParam->getUnderlyingType()); | |||
1501 | } | |||
1502 | ||||
1503 | //===----------------------------------------------------------------------===// | |||
1504 | // ObjCInterfaceDecl | |||
1505 | //===----------------------------------------------------------------------===// | |||
1506 | ||||
1507 | ObjCInterfaceDecl *ObjCInterfaceDecl::Create(const ASTContext &C, | |||
1508 | DeclContext *DC, | |||
1509 | SourceLocation atLoc, | |||
1510 | IdentifierInfo *Id, | |||
1511 | ObjCTypeParamList *typeParamList, | |||
1512 | ObjCInterfaceDecl *PrevDecl, | |||
1513 | SourceLocation ClassLoc, | |||
1514 | bool isInternal){ | |||
1515 | auto *Result = new (C, DC) | |||
1516 | ObjCInterfaceDecl(C, DC, atLoc, Id, typeParamList, ClassLoc, PrevDecl, | |||
1517 | isInternal); | |||
1518 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1519 | C.getObjCInterfaceType(Result, PrevDecl); | |||
1520 | return Result; | |||
1521 | } | |||
1522 | ||||
1523 | ObjCInterfaceDecl *ObjCInterfaceDecl::CreateDeserialized(const ASTContext &C, | |||
1524 | unsigned ID) { | |||
1525 | auto *Result = new (C, ID) | |||
1526 | ObjCInterfaceDecl(C, nullptr, SourceLocation(), nullptr, nullptr, | |||
1527 | SourceLocation(), nullptr, false); | |||
1528 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1529 | return Result; | |||
1530 | } | |||
1531 | ||||
1532 | ObjCInterfaceDecl::ObjCInterfaceDecl(const ASTContext &C, DeclContext *DC, | |||
1533 | SourceLocation AtLoc, IdentifierInfo *Id, | |||
1534 | ObjCTypeParamList *typeParamList, | |||
1535 | SourceLocation CLoc, | |||
1536 | ObjCInterfaceDecl *PrevDecl, | |||
1537 | bool IsInternal) | |||
1538 | : ObjCContainerDecl(ObjCInterface, DC, Id, CLoc, AtLoc), | |||
1539 | redeclarable_base(C) { | |||
1540 | setPreviousDecl(PrevDecl); | |||
1541 | ||||
1542 | // Copy the 'data' pointer over. | |||
1543 | if (PrevDecl) | |||
1544 | Data = PrevDecl->Data; | |||
1545 | ||||
1546 | setImplicit(IsInternal); | |||
1547 | ||||
1548 | setTypeParamList(typeParamList); | |||
1549 | } | |||
1550 | ||||
1551 | void ObjCInterfaceDecl::LoadExternalDefinition() const { | |||
1552 | assert(data().ExternallyCompleted && "Class is not externally completed")(static_cast <bool> (data().ExternallyCompleted && "Class is not externally completed") ? void (0) : __assert_fail ("data().ExternallyCompleted && \"Class is not externally completed\"" , "clang/lib/AST/DeclObjC.cpp", 1552, __extension__ __PRETTY_FUNCTION__ )); | |||
1553 | data().ExternallyCompleted = false; | |||
1554 | getASTContext().getExternalSource()->CompleteType( | |||
1555 | const_cast<ObjCInterfaceDecl *>(this)); | |||
1556 | } | |||
1557 | ||||
1558 | void ObjCInterfaceDecl::setExternallyCompleted() { | |||
1559 | assert(getASTContext().getExternalSource() &&(static_cast <bool> (getASTContext().getExternalSource( ) && "Class can't be externally completed without an external source" ) ? void (0) : __assert_fail ("getASTContext().getExternalSource() && \"Class can't be externally completed without an external source\"" , "clang/lib/AST/DeclObjC.cpp", 1560, __extension__ __PRETTY_FUNCTION__ )) | |||
1560 | "Class can't be externally completed without an external source")(static_cast <bool> (getASTContext().getExternalSource( ) && "Class can't be externally completed without an external source" ) ? void (0) : __assert_fail ("getASTContext().getExternalSource() && \"Class can't be externally completed without an external source\"" , "clang/lib/AST/DeclObjC.cpp", 1560, __extension__ __PRETTY_FUNCTION__ )); | |||
1561 | assert(hasDefinition() &&(static_cast <bool> (hasDefinition() && "Forward declarations can't be externally completed" ) ? void (0) : __assert_fail ("hasDefinition() && \"Forward declarations can't be externally completed\"" , "clang/lib/AST/DeclObjC.cpp", 1562, __extension__ __PRETTY_FUNCTION__ )) | |||
1562 | "Forward declarations can't be externally completed")(static_cast <bool> (hasDefinition() && "Forward declarations can't be externally completed" ) ? void (0) : __assert_fail ("hasDefinition() && \"Forward declarations can't be externally completed\"" , "clang/lib/AST/DeclObjC.cpp", 1562, __extension__ __PRETTY_FUNCTION__ )); | |||
1563 | data().ExternallyCompleted = true; | |||
1564 | } | |||
1565 | ||||
1566 | void ObjCInterfaceDecl::setHasDesignatedInitializers() { | |||
1567 | // Check for a complete definition and recover if not so. | |||
1568 | if (!isThisDeclarationADefinition()) | |||
1569 | return; | |||
1570 | data().HasDesignatedInitializers = true; | |||
1571 | } | |||
1572 | ||||
1573 | bool ObjCInterfaceDecl::hasDesignatedInitializers() const { | |||
1574 | // Check for a complete definition and recover if not so. | |||
1575 | if (!isThisDeclarationADefinition()) | |||
1576 | return false; | |||
1577 | if (data().ExternallyCompleted) | |||
1578 | LoadExternalDefinition(); | |||
1579 | ||||
1580 | return data().HasDesignatedInitializers; | |||
1581 | } | |||
1582 | ||||
1583 | StringRef | |||
1584 | ObjCInterfaceDecl::getObjCRuntimeNameAsString() const { | |||
1585 | if (const auto *ObjCRTName = getAttr<ObjCRuntimeNameAttr>()) | |||
1586 | return ObjCRTName->getMetadataName(); | |||
1587 | ||||
1588 | return getName(); | |||
1589 | } | |||
1590 | ||||
1591 | StringRef | |||
1592 | ObjCImplementationDecl::getObjCRuntimeNameAsString() const { | |||
1593 | if (ObjCInterfaceDecl *ID = | |||
1594 | const_cast<ObjCImplementationDecl*>(this)->getClassInterface()) | |||
1595 | return ID->getObjCRuntimeNameAsString(); | |||
1596 | ||||
1597 | return getName(); | |||
1598 | } | |||
1599 | ||||
1600 | ObjCImplementationDecl *ObjCInterfaceDecl::getImplementation() const { | |||
1601 | if (const ObjCInterfaceDecl *Def = getDefinition()) { | |||
1602 | if (data().ExternallyCompleted) | |||
1603 | LoadExternalDefinition(); | |||
1604 | ||||
1605 | return getASTContext().getObjCImplementation( | |||
1606 | const_cast<ObjCInterfaceDecl*>(Def)); | |||
1607 | } | |||
1608 | ||||
1609 | // FIXME: Should make sure no callers ever do this. | |||
1610 | return nullptr; | |||
1611 | } | |||
1612 | ||||
1613 | void ObjCInterfaceDecl::setImplementation(ObjCImplementationDecl *ImplD) { | |||
1614 | getASTContext().setObjCImplementation(getDefinition(), ImplD); | |||
1615 | } | |||
1616 | ||||
1617 | namespace { | |||
1618 | ||||
1619 | struct SynthesizeIvarChunk { | |||
1620 | uint64_t Size; | |||
1621 | ObjCIvarDecl *Ivar; | |||
1622 | ||||
1623 | SynthesizeIvarChunk(uint64_t size, ObjCIvarDecl *ivar) | |||
1624 | : Size(size), Ivar(ivar) {} | |||
1625 | }; | |||
1626 | ||||
1627 | bool operator<(const SynthesizeIvarChunk & LHS, | |||
1628 | const SynthesizeIvarChunk &RHS) { | |||
1629 | return LHS.Size < RHS.Size; | |||
1630 | } | |||
1631 | ||||
1632 | } // namespace | |||
1633 | ||||
1634 | /// all_declared_ivar_begin - return first ivar declared in this class, | |||
1635 | /// its extensions and its implementation. Lazily build the list on first | |||
1636 | /// access. | |||
1637 | /// | |||
1638 | /// Caveat: The list returned by this method reflects the current | |||
1639 | /// state of the parser. The cache will be updated for every ivar | |||
1640 | /// added by an extension or the implementation when they are | |||
1641 | /// encountered. | |||
1642 | /// See also ObjCIvarDecl::Create(). | |||
1643 | ObjCIvarDecl *ObjCInterfaceDecl::all_declared_ivar_begin() { | |||
1644 | // FIXME: Should make sure no callers ever do this. | |||
1645 | if (!hasDefinition()) | |||
| ||||
1646 | return nullptr; | |||
1647 | ||||
1648 | ObjCIvarDecl *curIvar = nullptr; | |||
1649 | if (!data().IvarList) { | |||
1650 | if (!ivar_empty()) { | |||
1651 | ObjCInterfaceDecl::ivar_iterator I = ivar_begin(), E = ivar_end(); | |||
1652 | data().IvarList = *I; ++I; | |||
1653 | for (curIvar = data().IvarList; I != E; curIvar = *I, ++I) | |||
1654 | curIvar->setNextIvar(*I); | |||
1655 | } | |||
1656 | ||||
1657 | for (const auto *Ext : known_extensions()) { | |||
1658 | if (!Ext->ivar_empty()) { | |||
1659 | ObjCCategoryDecl::ivar_iterator | |||
1660 | I = Ext->ivar_begin(), | |||
1661 | E = Ext->ivar_end(); | |||
1662 | if (!data().IvarList) { | |||
1663 | data().IvarList = *I; ++I; | |||
1664 | curIvar = data().IvarList; | |||
1665 | } | |||
1666 | for ( ;I != E; curIvar = *I, ++I) | |||
1667 | curIvar->setNextIvar(*I); | |||
| ||||
1668 | } | |||
1669 | } | |||
1670 | data().IvarListMissingImplementation = true; | |||
1671 | } | |||
1672 | ||||
1673 | // cached and complete! | |||
1674 | if (!data().IvarListMissingImplementation) | |||
1675 | return data().IvarList; | |||
1676 | ||||
1677 | if (ObjCImplementationDecl *ImplDecl = getImplementation()) { | |||
1678 | data().IvarListMissingImplementation = false; | |||
1679 | if (!ImplDecl->ivar_empty()) { | |||
1680 | SmallVector<SynthesizeIvarChunk, 16> layout; | |||
1681 | for (auto *IV : ImplDecl->ivars()) { | |||
1682 | if (IV->getSynthesize() && !IV->isInvalidDecl()) { | |||
1683 | layout.push_back(SynthesizeIvarChunk( | |||
1684 | IV->getASTContext().getTypeSize(IV->getType()), IV)); | |||
1685 | continue; | |||
1686 | } | |||
1687 | if (!data().IvarList) | |||
1688 | data().IvarList = IV; | |||
1689 | else | |||
1690 | curIvar->setNextIvar(IV); | |||
1691 | curIvar = IV; | |||
1692 | } | |||
1693 | ||||
1694 | if (!layout.empty()) { | |||
1695 | // Order synthesized ivars by their size. | |||
1696 | llvm::stable_sort(layout); | |||
1697 | unsigned Ix = 0, EIx = layout.size(); | |||
1698 | if (!data().IvarList) { | |||
1699 | data().IvarList = layout[0].Ivar; Ix++; | |||
1700 | curIvar = data().IvarList; | |||
1701 | } | |||
1702 | for ( ; Ix != EIx; curIvar = layout[Ix].Ivar, Ix++) | |||
1703 | curIvar->setNextIvar(layout[Ix].Ivar); | |||
1704 | } | |||
1705 | } | |||
1706 | } | |||
1707 | return data().IvarList; | |||
1708 | } | |||
1709 | ||||
1710 | /// FindCategoryDeclaration - Finds category declaration in the list of | |||
1711 | /// categories for this class and returns it. Name of the category is passed | |||
1712 | /// in 'CategoryId'. If category not found, return 0; | |||
1713 | /// | |||
1714 | ObjCCategoryDecl * | |||
1715 | ObjCInterfaceDecl::FindCategoryDeclaration(IdentifierInfo *CategoryId) const { | |||
1716 | // FIXME: Should make sure no callers ever do this. | |||
1717 | if (!hasDefinition()) | |||
1718 | return nullptr; | |||
1719 | ||||
1720 | if (data().ExternallyCompleted) | |||
1721 | LoadExternalDefinition(); | |||
1722 | ||||
1723 | for (auto *Cat : visible_categories()) | |||
1724 | if (Cat->getIdentifier() == CategoryId) | |||
1725 | return Cat; | |||
1726 | ||||
1727 | return nullptr; | |||
1728 | } | |||
1729 | ||||
1730 | ObjCMethodDecl * | |||
1731 | ObjCInterfaceDecl::getCategoryInstanceMethod(Selector Sel) const { | |||
1732 | for (const auto *Cat : visible_categories()) { | |||
1733 | if (ObjCCategoryImplDecl *Impl = Cat->getImplementation()) | |||
1734 | if (ObjCMethodDecl *MD = Impl->getInstanceMethod(Sel)) | |||
1735 | return MD; | |||
1736 | } | |||
1737 | ||||
1738 | return nullptr; | |||
1739 | } | |||
1740 | ||||
1741 | ObjCMethodDecl *ObjCInterfaceDecl::getCategoryClassMethod(Selector Sel) const { | |||
1742 | for (const auto *Cat : visible_categories()) { | |||
1743 | if (ObjCCategoryImplDecl *Impl = Cat->getImplementation()) | |||
1744 | if (ObjCMethodDecl *MD = Impl->getClassMethod(Sel)) | |||
1745 | return MD; | |||
1746 | } | |||
1747 | ||||
1748 | return nullptr; | |||
1749 | } | |||
1750 | ||||
1751 | /// ClassImplementsProtocol - Checks that 'lProto' protocol | |||
1752 | /// has been implemented in IDecl class, its super class or categories (if | |||
1753 | /// lookupCategory is true). | |||
1754 | bool ObjCInterfaceDecl::ClassImplementsProtocol(ObjCProtocolDecl *lProto, | |||
1755 | bool lookupCategory, | |||
1756 | bool RHSIsQualifiedID) { | |||
1757 | if (!hasDefinition()) | |||
1758 | return false; | |||
1759 | ||||
1760 | ObjCInterfaceDecl *IDecl = this; | |||
1761 | // 1st, look up the class. | |||
1762 | for (auto *PI : IDecl->protocols()){ | |||
1763 | if (getASTContext().ProtocolCompatibleWithProtocol(lProto, PI)) | |||
1764 | return true; | |||
1765 | // This is dubious and is added to be compatible with gcc. In gcc, it is | |||
1766 | // also allowed assigning a protocol-qualified 'id' type to a LHS object | |||
1767 | // when protocol in qualified LHS is in list of protocols in the rhs 'id' | |||
1768 | // object. This IMO, should be a bug. | |||
1769 | // FIXME: Treat this as an extension, and flag this as an error when GCC | |||
1770 | // extensions are not enabled. | |||
1771 | if (RHSIsQualifiedID && | |||
1772 | getASTContext().ProtocolCompatibleWithProtocol(PI, lProto)) | |||
1773 | return true; | |||
1774 | } | |||
1775 | ||||
1776 | // 2nd, look up the category. | |||
1777 | if (lookupCategory) | |||
1778 | for (const auto *Cat : visible_categories()) { | |||
1779 | for (auto *PI : Cat->protocols()) | |||
1780 | if (getASTContext().ProtocolCompatibleWithProtocol(lProto, PI)) | |||
1781 | return true; | |||
1782 | } | |||
1783 | ||||
1784 | // 3rd, look up the super class(s) | |||
1785 | if (IDecl->getSuperClass()) | |||
1786 | return | |||
1787 | IDecl->getSuperClass()->ClassImplementsProtocol(lProto, lookupCategory, | |||
1788 | RHSIsQualifiedID); | |||
1789 | ||||
1790 | return false; | |||
1791 | } | |||
1792 | ||||
1793 | //===----------------------------------------------------------------------===// | |||
1794 | // ObjCIvarDecl | |||
1795 | //===----------------------------------------------------------------------===// | |||
1796 | ||||
1797 | void ObjCIvarDecl::anchor() {} | |||
1798 | ||||
1799 | ObjCIvarDecl *ObjCIvarDecl::Create(ASTContext &C, ObjCContainerDecl *DC, | |||
1800 | SourceLocation StartLoc, | |||
1801 | SourceLocation IdLoc, IdentifierInfo *Id, | |||
1802 | QualType T, TypeSourceInfo *TInfo, | |||
1803 | AccessControl ac, Expr *BW, | |||
1804 | bool synthesized) { | |||
1805 | if (DC) { | |||
1806 | // Ivar's can only appear in interfaces, implementations (via synthesized | |||
1807 | // properties), and class extensions (via direct declaration, or synthesized | |||
1808 | // properties). | |||
1809 | // | |||
1810 | // FIXME: This should really be asserting this: | |||
1811 | // (isa<ObjCCategoryDecl>(DC) && | |||
1812 | // cast<ObjCCategoryDecl>(DC)->IsClassExtension())) | |||
1813 | // but unfortunately we sometimes place ivars into non-class extension | |||
1814 | // categories on error. This breaks an AST invariant, and should not be | |||
1815 | // fixed. | |||
1816 | assert((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) ||(static_cast <bool> ((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl >(DC)) && "Invalid ivar decl context!") ? void (0) : __assert_fail ("(isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl>(DC)) && \"Invalid ivar decl context!\"" , "clang/lib/AST/DeclObjC.cpp", 1818, __extension__ __PRETTY_FUNCTION__ )) | |||
1817 | isa<ObjCCategoryDecl>(DC)) &&(static_cast <bool> ((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl >(DC)) && "Invalid ivar decl context!") ? void (0) : __assert_fail ("(isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl>(DC)) && \"Invalid ivar decl context!\"" , "clang/lib/AST/DeclObjC.cpp", 1818, __extension__ __PRETTY_FUNCTION__ )) | |||
1818 | "Invalid ivar decl context!")(static_cast <bool> ((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl >(DC)) && "Invalid ivar decl context!") ? void (0) : __assert_fail ("(isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl>(DC)) && \"Invalid ivar decl context!\"" , "clang/lib/AST/DeclObjC.cpp", 1818, __extension__ __PRETTY_FUNCTION__ )); | |||
1819 | // Once a new ivar is created in any of class/class-extension/implementation | |||
1820 | // decl contexts, the previously built IvarList must be rebuilt. | |||
1821 | auto *ID = dyn_cast<ObjCInterfaceDecl>(DC); | |||
1822 | if (!ID) { | |||
1823 | if (auto *IM = dyn_cast<ObjCImplementationDecl>(DC)) | |||
1824 | ID = IM->getClassInterface(); | |||
1825 | else | |||
1826 | ID = cast<ObjCCategoryDecl>(DC)->getClassInterface(); | |||
1827 | } | |||
1828 | ID->setIvarList(nullptr); | |||
1829 | } | |||
1830 | ||||
1831 | return new (C, DC) ObjCIvarDecl(DC, StartLoc, IdLoc, Id, T, TInfo, ac, BW, | |||
1832 | synthesized); | |||
1833 | } | |||
1834 | ||||
1835 | ObjCIvarDecl *ObjCIvarDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
1836 | return new (C, ID) ObjCIvarDecl(nullptr, SourceLocation(), SourceLocation(), | |||
1837 | nullptr, QualType(), nullptr, | |||
1838 | ObjCIvarDecl::None, nullptr, false); | |||
1839 | } | |||
1840 | ||||
1841 | const ObjCInterfaceDecl *ObjCIvarDecl::getContainingInterface() const { | |||
1842 | const auto *DC = cast<ObjCContainerDecl>(getDeclContext()); | |||
1843 | ||||
1844 | switch (DC->getKind()) { | |||
1845 | default: | |||
1846 | case ObjCCategoryImpl: | |||
1847 | case ObjCProtocol: | |||
1848 | llvm_unreachable("invalid ivar container!")::llvm::llvm_unreachable_internal("invalid ivar container!", "clang/lib/AST/DeclObjC.cpp" , 1848); | |||
1849 | ||||
1850 | // Ivars can only appear in class extension categories. | |||
1851 | case ObjCCategory: { | |||
1852 | const auto *CD = cast<ObjCCategoryDecl>(DC); | |||
1853 | assert(CD->IsClassExtension() && "invalid container for ivar!")(static_cast <bool> (CD->IsClassExtension() && "invalid container for ivar!") ? void (0) : __assert_fail ("CD->IsClassExtension() && \"invalid container for ivar!\"" , "clang/lib/AST/DeclObjC.cpp", 1853, __extension__ __PRETTY_FUNCTION__ )); | |||
1854 | return CD->getClassInterface(); | |||
1855 | } | |||
1856 | ||||
1857 | case ObjCImplementation: | |||
1858 | return cast<ObjCImplementationDecl>(DC)->getClassInterface(); | |||
1859 | ||||
1860 | case ObjCInterface: | |||
1861 | return cast<ObjCInterfaceDecl>(DC); | |||
1862 | } | |||
1863 | } | |||
1864 | ||||
1865 | QualType ObjCIvarDecl::getUsageType(QualType objectType) const { | |||
1866 | return getType().substObjCMemberType(objectType, getDeclContext(), | |||
1867 | ObjCSubstitutionContext::Property); | |||
1868 | } | |||
1869 | ||||
1870 | //===----------------------------------------------------------------------===// | |||
1871 | // ObjCAtDefsFieldDecl | |||
1872 | //===----------------------------------------------------------------------===// | |||
1873 | ||||
1874 | void ObjCAtDefsFieldDecl::anchor() {} | |||
1875 | ||||
1876 | ObjCAtDefsFieldDecl | |||
1877 | *ObjCAtDefsFieldDecl::Create(ASTContext &C, DeclContext *DC, | |||
1878 | SourceLocation StartLoc, SourceLocation IdLoc, | |||
1879 | IdentifierInfo *Id, QualType T, Expr *BW) { | |||
1880 | return new (C, DC) ObjCAtDefsFieldDecl(DC, StartLoc, IdLoc, Id, T, BW); | |||
1881 | } | |||
1882 | ||||
1883 | ObjCAtDefsFieldDecl *ObjCAtDefsFieldDecl::CreateDeserialized(ASTContext &C, | |||
1884 | unsigned ID) { | |||
1885 | return new (C, ID) ObjCAtDefsFieldDecl(nullptr, SourceLocation(), | |||
1886 | SourceLocation(), nullptr, QualType(), | |||
1887 | nullptr); | |||
1888 | } | |||
1889 | ||||
1890 | //===----------------------------------------------------------------------===// | |||
1891 | // ObjCProtocolDecl | |||
1892 | //===----------------------------------------------------------------------===// | |||
1893 | ||||
1894 | void ObjCProtocolDecl::anchor() {} | |||
1895 | ||||
1896 | ObjCProtocolDecl::ObjCProtocolDecl(ASTContext &C, DeclContext *DC, | |||
1897 | IdentifierInfo *Id, SourceLocation nameLoc, | |||
1898 | SourceLocation atStartLoc, | |||
1899 | ObjCProtocolDecl *PrevDecl) | |||
1900 | : ObjCContainerDecl(ObjCProtocol, DC, Id, nameLoc, atStartLoc), | |||
1901 | redeclarable_base(C) { | |||
1902 | setPreviousDecl(PrevDecl); | |||
1903 | if (PrevDecl) | |||
1904 | Data = PrevDecl->Data; | |||
1905 | } | |||
1906 | ||||
1907 | ObjCProtocolDecl *ObjCProtocolDecl::Create(ASTContext &C, DeclContext *DC, | |||
1908 | IdentifierInfo *Id, | |||
1909 | SourceLocation nameLoc, | |||
1910 | SourceLocation atStartLoc, | |||
1911 | ObjCProtocolDecl *PrevDecl) { | |||
1912 | auto *Result = | |||
1913 | new (C, DC) ObjCProtocolDecl(C, DC, Id, nameLoc, atStartLoc, PrevDecl); | |||
1914 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1915 | return Result; | |||
1916 | } | |||
1917 | ||||
1918 | ObjCProtocolDecl *ObjCProtocolDecl::CreateDeserialized(ASTContext &C, | |||
1919 | unsigned ID) { | |||
1920 | ObjCProtocolDecl *Result = | |||
1921 | new (C, ID) ObjCProtocolDecl(C, nullptr, nullptr, SourceLocation(), | |||
1922 | SourceLocation(), nullptr); | |||
1923 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1924 | return Result; | |||
1925 | } | |||
1926 | ||||
1927 | bool ObjCProtocolDecl::isNonRuntimeProtocol() const { | |||
1928 | return hasAttr<ObjCNonRuntimeProtocolAttr>(); | |||
1929 | } | |||
1930 | ||||
1931 | void ObjCProtocolDecl::getImpliedProtocols( | |||
1932 | llvm::DenseSet<const ObjCProtocolDecl *> &IPs) const { | |||
1933 | std::queue<const ObjCProtocolDecl *> WorkQueue; | |||
1934 | WorkQueue.push(this); | |||
1935 | ||||
1936 | while (!WorkQueue.empty()) { | |||
1937 | const auto *PD = WorkQueue.front(); | |||
1938 | WorkQueue.pop(); | |||
1939 | for (const auto *Parent : PD->protocols()) { | |||
1940 | const auto *Can = Parent->getCanonicalDecl(); | |||
1941 | auto Result = IPs.insert(Can); | |||
1942 | if (Result.second) | |||
1943 | WorkQueue.push(Parent); | |||
1944 | } | |||
1945 | } | |||
1946 | } | |||
1947 | ||||
1948 | ObjCProtocolDecl *ObjCProtocolDecl::lookupProtocolNamed(IdentifierInfo *Name) { | |||
1949 | ObjCProtocolDecl *PDecl = this; | |||
1950 | ||||
1951 | if (Name == getIdentifier()) | |||
1952 | return PDecl; | |||
1953 | ||||
1954 | for (auto *I : protocols()) | |||
1955 | if ((PDecl = I->lookupProtocolNamed(Name))) | |||
1956 | return PDecl; | |||
1957 | ||||
1958 | return nullptr; | |||
1959 | } | |||
1960 | ||||
1961 | // lookupMethod - Lookup a instance/class method in the protocol and protocols | |||
1962 | // it inherited. | |||
1963 | ObjCMethodDecl *ObjCProtocolDecl::lookupMethod(Selector Sel, | |||
1964 | bool isInstance) const { | |||
1965 | ObjCMethodDecl *MethodDecl = nullptr; | |||
1966 | ||||
1967 | // If there is no definition or the definition is hidden, we don't find | |||
1968 | // anything. | |||
1969 | const ObjCProtocolDecl *Def = getDefinition(); | |||
1970 | if (!Def || !Def->isUnconditionallyVisible()) | |||
1971 | return nullptr; | |||
1972 | ||||
1973 | if ((MethodDecl = getMethod(Sel, isInstance))) | |||
1974 | return MethodDecl; | |||
1975 | ||||
1976 | for (const auto *I : protocols()) | |||
1977 | if ((MethodDecl = I->lookupMethod(Sel, isInstance))) | |||
1978 | return MethodDecl; | |||
1979 | return nullptr; | |||
1980 | } | |||
1981 | ||||
1982 | void ObjCProtocolDecl::allocateDefinitionData() { | |||
1983 | assert(!Data.getPointer() && "Protocol already has a definition!")(static_cast <bool> (!Data.getPointer() && "Protocol already has a definition!" ) ? void (0) : __assert_fail ("!Data.getPointer() && \"Protocol already has a definition!\"" , "clang/lib/AST/DeclObjC.cpp", 1983, __extension__ __PRETTY_FUNCTION__ )); | |||
1984 | Data.setPointer(new (getASTContext()) DefinitionData); | |||
1985 | Data.getPointer()->Definition = this; | |||
1986 | } | |||
1987 | ||||
1988 | void ObjCProtocolDecl::startDefinition() { | |||
1989 | allocateDefinitionData(); | |||
1990 | ||||
1991 | // Update all of the declarations with a pointer to the definition. | |||
1992 | for (auto *RD : redecls()) | |||
1993 | RD->Data = this->Data; | |||
1994 | } | |||
1995 | ||||
1996 | void ObjCProtocolDecl::collectPropertiesToImplement(PropertyMap &PM, | |||
1997 | PropertyDeclOrder &PO) const { | |||
1998 | if (const ObjCProtocolDecl *PDecl = getDefinition()) { | |||
1999 | for (auto *Prop : PDecl->properties()) { | |||
2000 | // Insert into PM if not there already. | |||
2001 | PM.insert(std::make_pair( | |||
2002 | std::make_pair(Prop->getIdentifier(), Prop->isClassProperty()), | |||
2003 | Prop)); | |||
2004 | PO.push_back(Prop); | |||
2005 | } | |||
2006 | // Scan through protocol's protocols. | |||
2007 | for (const auto *PI : PDecl->protocols()) | |||
2008 | PI->collectPropertiesToImplement(PM, PO); | |||
2009 | } | |||
2010 | } | |||
2011 | ||||
2012 | void ObjCProtocolDecl::collectInheritedProtocolProperties( | |||
2013 | const ObjCPropertyDecl *Property, ProtocolPropertySet &PS, | |||
2014 | PropertyDeclOrder &PO) const { | |||
2015 | if (const ObjCProtocolDecl *PDecl = getDefinition()) { | |||
2016 | if (!PS.insert(PDecl).second) | |||
2017 | return; | |||
2018 | for (auto *Prop : PDecl->properties()) { | |||
2019 | if (Prop == Property) | |||
2020 | continue; | |||
2021 | if (Prop->getIdentifier() == Property->getIdentifier()) { | |||
2022 | PO.push_back(Prop); | |||
2023 | return; | |||
2024 | } | |||
2025 | } | |||
2026 | // Scan through protocol's protocols which did not have a matching property. | |||
2027 | for (const auto *PI : PDecl->protocols()) | |||
2028 | PI->collectInheritedProtocolProperties(Property, PS, PO); | |||
2029 | } | |||
2030 | } | |||
2031 | ||||
2032 | StringRef | |||
2033 | ObjCProtocolDecl::getObjCRuntimeNameAsString() const { | |||
2034 | if (const auto *ObjCRTName = getAttr<ObjCRuntimeNameAttr>()) | |||
2035 | return ObjCRTName->getMetadataName(); | |||
2036 | ||||
2037 | return getName(); | |||
2038 | } | |||
2039 | ||||
2040 | //===----------------------------------------------------------------------===// | |||
2041 | // ObjCCategoryDecl | |||
2042 | //===----------------------------------------------------------------------===// | |||
2043 | ||||
2044 | void ObjCCategoryDecl::anchor() {} | |||
2045 | ||||
2046 | ObjCCategoryDecl::ObjCCategoryDecl(DeclContext *DC, SourceLocation AtLoc, | |||
2047 | SourceLocation ClassNameLoc, | |||
2048 | SourceLocation CategoryNameLoc, | |||
2049 | IdentifierInfo *Id, ObjCInterfaceDecl *IDecl, | |||
2050 | ObjCTypeParamList *typeParamList, | |||
2051 | SourceLocation IvarLBraceLoc, | |||
2052 | SourceLocation IvarRBraceLoc) | |||
2053 | : ObjCContainerDecl(ObjCCategory, DC, Id, ClassNameLoc, AtLoc), | |||
2054 | ClassInterface(IDecl), CategoryNameLoc(CategoryNameLoc), | |||
2055 | IvarLBraceLoc(IvarLBraceLoc), IvarRBraceLoc(IvarRBraceLoc) { | |||
2056 | setTypeParamList(typeParamList); | |||
2057 | } | |||
2058 | ||||
2059 | ObjCCategoryDecl *ObjCCategoryDecl::Create(ASTContext &C, DeclContext *DC, | |||
2060 | SourceLocation AtLoc, | |||
2061 | SourceLocation ClassNameLoc, | |||
2062 | SourceLocation CategoryNameLoc, | |||
2063 | IdentifierInfo *Id, | |||
2064 | ObjCInterfaceDecl *IDecl, | |||
2065 | ObjCTypeParamList *typeParamList, | |||
2066 | SourceLocation IvarLBraceLoc, | |||
2067 | SourceLocation IvarRBraceLoc) { | |||
2068 | auto *CatDecl = | |||
2069 | new (C, DC) ObjCCategoryDecl(DC, AtLoc, ClassNameLoc, CategoryNameLoc, Id, | |||
2070 | IDecl, typeParamList, IvarLBraceLoc, | |||
2071 | IvarRBraceLoc); | |||
2072 | if (IDecl) { | |||
2073 | // Link this category into its class's category list. | |||
2074 | CatDecl->NextClassCategory = IDecl->getCategoryListRaw(); | |||
2075 | if (IDecl->hasDefinition()) { | |||
2076 | IDecl->setCategoryListRaw(CatDecl); | |||
2077 | if (ASTMutationListener *L = C.getASTMutationListener()) | |||
2078 | L->AddedObjCCategoryToInterface(CatDecl, IDecl); | |||
2079 | } | |||
2080 | } | |||
2081 | ||||
2082 | return CatDecl; | |||
2083 | } | |||
2084 | ||||
2085 | ObjCCategoryDecl *ObjCCategoryDecl::CreateDeserialized(ASTContext &C, | |||
2086 | unsigned ID) { | |||
2087 | return new (C, ID) ObjCCategoryDecl(nullptr, SourceLocation(), | |||
2088 | SourceLocation(), SourceLocation(), | |||
2089 | nullptr, nullptr, nullptr); | |||
2090 | } | |||
2091 | ||||
2092 | ObjCCategoryImplDecl *ObjCCategoryDecl::getImplementation() const { | |||
2093 | return getASTContext().getObjCImplementation( | |||
2094 | const_cast<ObjCCategoryDecl*>(this)); | |||
2095 | } | |||
2096 | ||||
2097 | void ObjCCategoryDecl::setImplementation(ObjCCategoryImplDecl *ImplD) { | |||
2098 | getASTContext().setObjCImplementation(this, ImplD); | |||
2099 | } | |||
2100 | ||||
2101 | void ObjCCategoryDecl::setTypeParamList(ObjCTypeParamList *TPL) { | |||
2102 | TypeParamList = TPL; | |||
2103 | if (!TPL) | |||
2104 | return; | |||
2105 | // Set the declaration context of each of the type parameters. | |||
2106 | for (auto *typeParam : *TypeParamList) | |||
2107 | typeParam->setDeclContext(this); | |||
2108 | } | |||
2109 | ||||
2110 | //===----------------------------------------------------------------------===// | |||
2111 | // ObjCCategoryImplDecl | |||
2112 | //===----------------------------------------------------------------------===// | |||
2113 | ||||
2114 | void ObjCCategoryImplDecl::anchor() {} | |||
2115 | ||||
2116 | ObjCCategoryImplDecl * | |||
2117 | ObjCCategoryImplDecl::Create(ASTContext &C, DeclContext *DC, | |||
2118 | IdentifierInfo *Id, | |||
2119 | ObjCInterfaceDecl *ClassInterface, | |||
2120 | SourceLocation nameLoc, | |||
2121 | SourceLocation atStartLoc, | |||
2122 | SourceLocation CategoryNameLoc) { | |||
2123 | if (ClassInterface && ClassInterface->hasDefinition()) | |||
2124 | ClassInterface = ClassInterface->getDefinition(); | |||
2125 | return new (C, DC) ObjCCategoryImplDecl(DC, Id, ClassInterface, nameLoc, | |||
2126 | atStartLoc, CategoryNameLoc); | |||
2127 | } | |||
2128 | ||||
2129 | ObjCCategoryImplDecl *ObjCCategoryImplDecl::CreateDeserialized(ASTContext &C, | |||
2130 | unsigned ID) { | |||
2131 | return new (C, ID) ObjCCategoryImplDecl(nullptr, nullptr, nullptr, | |||
2132 | SourceLocation(), SourceLocation(), | |||
2133 | SourceLocation()); | |||
2134 | } | |||
2135 | ||||
2136 | ObjCCategoryDecl *ObjCCategoryImplDecl::getCategoryDecl() const { | |||
2137 | // The class interface might be NULL if we are working with invalid code. | |||
2138 | if (const ObjCInterfaceDecl *ID = getClassInterface()) | |||
2139 | return ID->FindCategoryDeclaration(getIdentifier()); | |||
2140 | return nullptr; | |||
2141 | } | |||
2142 | ||||
2143 | void ObjCImplDecl::anchor() {} | |||
2144 | ||||
2145 | void ObjCImplDecl::addPropertyImplementation(ObjCPropertyImplDecl *property) { | |||
2146 | // FIXME: The context should be correct before we get here. | |||
2147 | property->setLexicalDeclContext(this); | |||
2148 | addDecl(property); | |||
2149 | } | |||
2150 | ||||
2151 | void ObjCImplDecl::setClassInterface(ObjCInterfaceDecl *IFace) { | |||
2152 | ASTContext &Ctx = getASTContext(); | |||
2153 | ||||
2154 | if (auto *ImplD = dyn_cast_or_null<ObjCImplementationDecl>(this)) { | |||
2155 | if (IFace) | |||
2156 | Ctx.setObjCImplementation(IFace, ImplD); | |||
2157 | ||||
2158 | } else if (auto *ImplD = dyn_cast_or_null<ObjCCategoryImplDecl>(this)) { | |||
2159 | if (ObjCCategoryDecl *CD = IFace->FindCategoryDeclaration(getIdentifier())) | |||
2160 | Ctx.setObjCImplementation(CD, ImplD); | |||
2161 | } | |||
2162 | ||||
2163 | ClassInterface = IFace; | |||
2164 | } | |||
2165 | ||||
2166 | /// FindPropertyImplIvarDecl - This method lookup the ivar in the list of | |||
2167 | /// properties implemented in this \@implementation block and returns | |||
2168 | /// the implemented property that uses it. | |||
2169 | ObjCPropertyImplDecl *ObjCImplDecl:: | |||
2170 | FindPropertyImplIvarDecl(IdentifierInfo *ivarId) const { | |||
2171 | for (auto *PID : property_impls()) | |||
2172 | if (PID->getPropertyIvarDecl() && | |||
2173 | PID->getPropertyIvarDecl()->getIdentifier() == ivarId) | |||
2174 | return PID; | |||
2175 | return nullptr; | |||
2176 | } | |||
2177 | ||||
2178 | /// FindPropertyImplDecl - This method looks up a previous ObjCPropertyImplDecl | |||
2179 | /// added to the list of those properties \@synthesized/\@dynamic in this | |||
2180 | /// category \@implementation block. | |||
2181 | ObjCPropertyImplDecl *ObjCImplDecl:: | |||
2182 | FindPropertyImplDecl(IdentifierInfo *Id, | |||
2183 | ObjCPropertyQueryKind QueryKind) const { | |||
2184 | ObjCPropertyImplDecl *ClassPropImpl = nullptr; | |||
2185 | for (auto *PID : property_impls()) | |||
2186 | // If queryKind is unknown, we return the instance property if one | |||
2187 | // exists; otherwise we return the class property. | |||
2188 | if (PID->getPropertyDecl()->getIdentifier() == Id) { | |||
2189 | if ((QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown && | |||
2190 | !PID->getPropertyDecl()->isClassProperty()) || | |||
2191 | (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_class && | |||
2192 | PID->getPropertyDecl()->isClassProperty()) || | |||
2193 | (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_instance && | |||
2194 | !PID->getPropertyDecl()->isClassProperty())) | |||
2195 | return PID; | |||
2196 | ||||
2197 | if (PID->getPropertyDecl()->isClassProperty()) | |||
2198 | ClassPropImpl = PID; | |||
2199 | } | |||
2200 | ||||
2201 | if (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown) | |||
2202 | // We can't find the instance property, return the class property. | |||
2203 | return ClassPropImpl; | |||
2204 | ||||
2205 | return nullptr; | |||
2206 | } | |||
2207 | ||||
2208 | raw_ostream &clang::operator<<(raw_ostream &OS, | |||
2209 | const ObjCCategoryImplDecl &CID) { | |||
2210 | OS << CID.getName(); | |||
2211 | return OS; | |||
2212 | } | |||
2213 | ||||
2214 | //===----------------------------------------------------------------------===// | |||
2215 | // ObjCImplementationDecl | |||
2216 | //===----------------------------------------------------------------------===// | |||
2217 | ||||
2218 | void ObjCImplementationDecl::anchor() {} | |||
2219 | ||||
2220 | ObjCImplementationDecl * | |||
2221 | ObjCImplementationDecl::Create(ASTContext &C, DeclContext *DC, | |||
2222 | ObjCInterfaceDecl *ClassInterface, | |||
2223 | ObjCInterfaceDecl *SuperDecl, | |||
2224 | SourceLocation nameLoc, | |||
2225 | SourceLocation atStartLoc, | |||
2226 | SourceLocation superLoc, | |||
2227 | SourceLocation IvarLBraceLoc, | |||
2228 | SourceLocation IvarRBraceLoc) { | |||
2229 | if (ClassInterface && ClassInterface->hasDefinition()) | |||
2230 | ClassInterface = ClassInterface->getDefinition(); | |||
2231 | return new (C, DC) ObjCImplementationDecl(DC, ClassInterface, SuperDecl, | |||
2232 | nameLoc, atStartLoc, superLoc, | |||
2233 | IvarLBraceLoc, IvarRBraceLoc); | |||
2234 | } | |||
2235 | ||||
2236 | ObjCImplementationDecl * | |||
2237 | ObjCImplementationDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
2238 | return new (C, ID) ObjCImplementationDecl(nullptr, nullptr, nullptr, | |||
2239 | SourceLocation(), SourceLocation()); | |||
2240 | } | |||
2241 | ||||
2242 | void ObjCImplementationDecl::setIvarInitializers(ASTContext &C, | |||
2243 | CXXCtorInitializer ** initializers, | |||
2244 | unsigned numInitializers) { | |||
2245 | if (numInitializers > 0) { | |||
2246 | NumIvarInitializers = numInitializers; | |||
2247 | auto **ivarInitializers = new (C) CXXCtorInitializer*[NumIvarInitializers]; | |||
2248 | memcpy(ivarInitializers, initializers, | |||
2249 | numInitializers * sizeof(CXXCtorInitializer*)); | |||
2250 | IvarInitializers = ivarInitializers; | |||
2251 | } | |||
2252 | } | |||
2253 | ||||
2254 | ObjCImplementationDecl::init_const_iterator | |||
2255 | ObjCImplementationDecl::init_begin() const { | |||
2256 | return IvarInitializers.get(getASTContext().getExternalSource()); | |||
2257 | } | |||
2258 | ||||
2259 | raw_ostream &clang::operator<<(raw_ostream &OS, | |||
2260 | const ObjCImplementationDecl &ID) { | |||
2261 | OS << ID.getName(); | |||
2262 | return OS; | |||
2263 | } | |||
2264 | ||||
2265 | //===----------------------------------------------------------------------===// | |||
2266 | // ObjCCompatibleAliasDecl | |||
2267 | //===----------------------------------------------------------------------===// | |||
2268 | ||||
2269 | void ObjCCompatibleAliasDecl::anchor() {} | |||
2270 | ||||
2271 | ObjCCompatibleAliasDecl * | |||
2272 | ObjCCompatibleAliasDecl::Create(ASTContext &C, DeclContext *DC, | |||
2273 | SourceLocation L, | |||
2274 | IdentifierInfo *Id, | |||
2275 | ObjCInterfaceDecl* AliasedClass) { | |||
2276 | return new (C, DC) ObjCCompatibleAliasDecl(DC, L, Id, AliasedClass); | |||
2277 | } | |||
2278 | ||||
2279 | ObjCCompatibleAliasDecl * | |||
2280 | ObjCCompatibleAliasDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
2281 | return new (C, ID) ObjCCompatibleAliasDecl(nullptr, SourceLocation(), | |||
2282 | nullptr, nullptr); | |||
2283 | } | |||
2284 | ||||
2285 | //===----------------------------------------------------------------------===// | |||
2286 | // ObjCPropertyDecl | |||
2287 | //===----------------------------------------------------------------------===// | |||
2288 | ||||
2289 | void ObjCPropertyDecl::anchor() {} | |||
2290 | ||||
2291 | ObjCPropertyDecl *ObjCPropertyDecl::Create(ASTContext &C, DeclContext *DC, | |||
2292 | SourceLocation L, | |||
2293 | IdentifierInfo *Id, | |||
2294 | SourceLocation AtLoc, | |||
2295 | SourceLocation LParenLoc, | |||
2296 | QualType T, | |||
2297 | TypeSourceInfo *TSI, | |||
2298 | PropertyControl propControl) { | |||
2299 | return new (C, DC) ObjCPropertyDecl(DC, L, Id, AtLoc, LParenLoc, T, TSI, | |||
2300 | propControl); | |||
2301 | } | |||
2302 | ||||
2303 | ObjCPropertyDecl *ObjCPropertyDecl::CreateDeserialized(ASTContext &C, | |||
2304 | unsigned ID) { | |||
2305 | return new (C, ID) ObjCPropertyDecl(nullptr, SourceLocation(), nullptr, | |||
2306 | SourceLocation(), SourceLocation(), | |||
2307 | QualType(), nullptr, None); | |||
2308 | } | |||
2309 | ||||
2310 | QualType ObjCPropertyDecl::getUsageType(QualType objectType) const { | |||
2311 | return DeclType.substObjCMemberType(objectType, getDeclContext(), | |||
2312 | ObjCSubstitutionContext::Property); | |||
2313 | } | |||
2314 | ||||
2315 | bool ObjCPropertyDecl::isDirectProperty() const { | |||
2316 | return (PropertyAttributes & ObjCPropertyAttribute::kind_direct) && | |||
2317 | !getASTContext().getLangOpts().ObjCDisableDirectMethodsForTesting; | |||
2318 | } | |||
2319 | ||||
2320 | //===----------------------------------------------------------------------===// | |||
2321 | // ObjCPropertyImplDecl | |||
2322 | //===----------------------------------------------------------------------===// | |||
2323 | ||||
2324 | ObjCPropertyImplDecl *ObjCPropertyImplDecl::Create(ASTContext &C, | |||
2325 | DeclContext *DC, | |||
2326 | SourceLocation atLoc, | |||
2327 | SourceLocation L, | |||
2328 | ObjCPropertyDecl *property, | |||
2329 | Kind PK, | |||
2330 | ObjCIvarDecl *ivar, | |||
2331 | SourceLocation ivarLoc) { | |||
2332 | return new (C, DC) ObjCPropertyImplDecl(DC, atLoc, L, property, PK, ivar, | |||
2333 | ivarLoc); | |||
2334 | } | |||
2335 | ||||
2336 | ObjCPropertyImplDecl *ObjCPropertyImplDecl::CreateDeserialized(ASTContext &C, | |||
2337 | unsigned ID) { | |||
2338 | return new (C, ID) ObjCPropertyImplDecl(nullptr, SourceLocation(), | |||
2339 | SourceLocation(), nullptr, Dynamic, | |||
2340 | nullptr, SourceLocation()); | |||
2341 | } | |||
2342 | ||||
2343 | SourceRange ObjCPropertyImplDecl::getSourceRange() const { | |||
2344 | SourceLocation EndLoc = getLocation(); | |||
2345 | if (IvarLoc.isValid()) | |||
2346 | EndLoc = IvarLoc; | |||
2347 | ||||
2348 | return SourceRange(AtLoc, EndLoc); | |||
2349 | } |