Bug Summary

File:tools/clang/lib/AST/DeclObjC.cpp
Warning:line 1594, column 11
Called C++ object pointer is null

Annotated Source Code

1//===--- DeclObjC.cpp - ObjC Declaration AST Node Implementation ----------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file implements the Objective-C related Decl classes.
11//
12//===----------------------------------------------------------------------===//
13
14#include "clang/AST/DeclObjC.h"
15#include "clang/AST/ASTContext.h"
16#include "clang/AST/ASTMutationListener.h"
17#include "clang/AST/Attr.h"
18#include "clang/AST/Stmt.h"
19#include "llvm/ADT/STLExtras.h"
20#include "llvm/ADT/SmallString.h"
21using namespace clang;
22
23//===----------------------------------------------------------------------===//
24// ObjCListBase
25//===----------------------------------------------------------------------===//
26
27void ObjCListBase::set(void *const* InList, unsigned Elts, ASTContext &Ctx) {
28 List = nullptr;
29 if (Elts == 0) return; // Setting to an empty list is a noop.
30
31
32 List = new (Ctx) void*[Elts];
33 NumElts = Elts;
34 memcpy(List, InList, sizeof(void*)*Elts);
35}
36
37void ObjCProtocolList::set(ObjCProtocolDecl* const* InList, unsigned Elts,
38 const SourceLocation *Locs, ASTContext &Ctx) {
39 if (Elts == 0)
40 return;
41
42 Locations = new (Ctx) SourceLocation[Elts];
43 memcpy(Locations, Locs, sizeof(SourceLocation) * Elts);
44 set(InList, Elts, Ctx);
45}
46
47//===----------------------------------------------------------------------===//
48// ObjCInterfaceDecl
49//===----------------------------------------------------------------------===//
50
51void ObjCContainerDecl::anchor() { }
52
53/// getIvarDecl - This method looks up an ivar in this ContextDecl.
54///
55ObjCIvarDecl *
56ObjCContainerDecl::getIvarDecl(IdentifierInfo *Id) const {
57 lookup_result R = lookup(Id);
58 for (lookup_iterator Ivar = R.begin(), IvarEnd = R.end();
59 Ivar != IvarEnd; ++Ivar) {
60 if (ObjCIvarDecl *ivar = dyn_cast<ObjCIvarDecl>(*Ivar))
61 return ivar;
62 }
63 return nullptr;
64}
65
66// Get the local instance/class method declared in this interface.
67ObjCMethodDecl *
68ObjCContainerDecl::getMethod(Selector Sel, bool isInstance,
69 bool AllowHidden) const {
70 // If this context is a hidden protocol definition, don't find any
71 // methods there.
72 if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(this)) {
73 if (const ObjCProtocolDecl *Def = Proto->getDefinition())
74 if (Def->isHidden() && !AllowHidden)
75 return nullptr;
76 }
77
78 // Since instance & class methods can have the same name, the loop below
79 // ensures we get the correct method.
80 //
81 // @interface Whatever
82 // - (int) class_method;
83 // + (float) class_method;
84 // @end
85 //
86 lookup_result R = lookup(Sel);
87 for (lookup_iterator Meth = R.begin(), MethEnd = R.end();
88 Meth != MethEnd; ++Meth) {
89 ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(*Meth);
90 if (MD && MD->isInstanceMethod() == isInstance)
91 return MD;
92 }
93 return nullptr;
94}
95
96/// \brief This routine returns 'true' if a user declared setter method was
97/// found in the class, its protocols, its super classes or categories.
98/// It also returns 'true' if one of its categories has declared a 'readwrite'
99/// property. This is because, user must provide a setter method for the
100/// category's 'readwrite' property.
101bool ObjCContainerDecl::HasUserDeclaredSetterMethod(
102 const ObjCPropertyDecl *Property) const {
103 Selector Sel = Property->getSetterName();
104 lookup_result R = lookup(Sel);
105 for (lookup_iterator Meth = R.begin(), MethEnd = R.end();
106 Meth != MethEnd; ++Meth) {
107 ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(*Meth);
108 if (MD && MD->isInstanceMethod() && !MD->isImplicit())
109 return true;
110 }
111
112 if (const ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(this)) {
113 // Also look into categories, including class extensions, looking
114 // for a user declared instance method.
115 for (const auto *Cat : ID->visible_categories()) {
116 if (ObjCMethodDecl *MD = Cat->getInstanceMethod(Sel))
117 if (!MD->isImplicit())
118 return true;
119 if (Cat->IsClassExtension())
120 continue;
121 // Also search through the categories looking for a 'readwrite'
122 // declaration of this property. If one found, presumably a setter will
123 // be provided (properties declared in categories will not get
124 // auto-synthesized).
125 for (const auto *P : Cat->properties())
126 if (P->getIdentifier() == Property->getIdentifier()) {
127 if (P->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_readwrite)
128 return true;
129 break;
130 }
131 }
132
133 // Also look into protocols, for a user declared instance method.
134 for (const auto *Proto : ID->all_referenced_protocols())
135 if (Proto->HasUserDeclaredSetterMethod(Property))
136 return true;
137
138 // And in its super class.
139 ObjCInterfaceDecl *OSC = ID->getSuperClass();
140 while (OSC) {
141 if (OSC->HasUserDeclaredSetterMethod(Property))
142 return true;
143 OSC = OSC->getSuperClass();
144 }
145 }
146 if (const ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(this))
147 for (const auto *PI : PD->protocols())
148 if (PI->HasUserDeclaredSetterMethod(Property))
149 return true;
150 return false;
151}
152
153ObjCPropertyDecl *
154ObjCPropertyDecl::findPropertyDecl(const DeclContext *DC,
155 const IdentifierInfo *propertyID,
156 ObjCPropertyQueryKind queryKind) {
157 // If this context is a hidden protocol definition, don't find any
158 // property.
159 if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(DC)) {
160 if (const ObjCProtocolDecl *Def = Proto->getDefinition())
161 if (Def->isHidden())
162 return nullptr;
163 }
164
165 // If context is class, then lookup property in its visible extensions.
166 // This comes before property is looked up in primary class.
167 if (auto *IDecl = dyn_cast<ObjCInterfaceDecl>(DC)) {
168 for (const auto *Ext : IDecl->visible_extensions())
169 if (ObjCPropertyDecl *PD = ObjCPropertyDecl::findPropertyDecl(Ext,
170 propertyID,
171 queryKind))
172 return PD;
173 }
174
175 DeclContext::lookup_result R = DC->lookup(propertyID);
176 ObjCPropertyDecl *classProp = nullptr;
177 for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E;
178 ++I)
179 if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(*I)) {
180 // If queryKind is unknown, we return the instance property if one
181 // exists; otherwise we return the class property.
182 if ((queryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown &&
183 !PD->isClassProperty()) ||
184 (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_class &&
185 PD->isClassProperty()) ||
186 (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_instance &&
187 !PD->isClassProperty()))
188 return PD;
189
190 if (PD->isClassProperty())
191 classProp = PD;
192 }
193
194 if (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown)
195 // We can't find the instance property, return the class property.
196 return classProp;
197
198 return nullptr;
199}
200
201IdentifierInfo *
202ObjCPropertyDecl::getDefaultSynthIvarName(ASTContext &Ctx) const {
203 SmallString<128> ivarName;
204 {
205 llvm::raw_svector_ostream os(ivarName);
206 os << '_' << getIdentifier()->getName();
207 }
208 return &Ctx.Idents.get(ivarName.str());
209}
210
211/// FindPropertyDeclaration - Finds declaration of the property given its name
212/// in 'PropertyId' and returns it. It returns 0, if not found.
213ObjCPropertyDecl *ObjCContainerDecl::FindPropertyDeclaration(
214 const IdentifierInfo *PropertyId,
215 ObjCPropertyQueryKind QueryKind) const {
216 // Don't find properties within hidden protocol definitions.
217 if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(this)) {
218 if (const ObjCProtocolDecl *Def = Proto->getDefinition())
219 if (Def->isHidden())
220 return nullptr;
221 }
222
223 // Search the extensions of a class first; they override what's in
224 // the class itself.
225 if (const auto *ClassDecl = dyn_cast<ObjCInterfaceDecl>(this)) {
226 for (const auto *Ext : ClassDecl->visible_extensions()) {
227 if (auto *P = Ext->FindPropertyDeclaration(PropertyId, QueryKind))
228 return P;
229 }
230 }
231
232 if (ObjCPropertyDecl *PD =
233 ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(this), PropertyId,
234 QueryKind))
235 return PD;
236
237 switch (getKind()) {
238 default:
239 break;
240 case Decl::ObjCProtocol: {
241 const ObjCProtocolDecl *PID = cast<ObjCProtocolDecl>(this);
242 for (const auto *I : PID->protocols())
243 if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId,
244 QueryKind))
245 return P;
246 break;
247 }
248 case Decl::ObjCInterface: {
249 const ObjCInterfaceDecl *OID = cast<ObjCInterfaceDecl>(this);
250 // Look through categories (but not extensions; they were handled above).
251 for (const auto *Cat : OID->visible_categories()) {
252 if (!Cat->IsClassExtension())
253 if (ObjCPropertyDecl *P = Cat->FindPropertyDeclaration(
254 PropertyId, QueryKind))
255 return P;
256 }
257
258 // Look through protocols.
259 for (const auto *I : OID->all_referenced_protocols())
260 if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId,
261 QueryKind))
262 return P;
263
264 // Finally, check the super class.
265 if (const ObjCInterfaceDecl *superClass = OID->getSuperClass())
266 return superClass->FindPropertyDeclaration(PropertyId, QueryKind);
267 break;
268 }
269 case Decl::ObjCCategory: {
270 const ObjCCategoryDecl *OCD = cast<ObjCCategoryDecl>(this);
271 // Look through protocols.
272 if (!OCD->IsClassExtension())
273 for (const auto *I : OCD->protocols())
274 if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId,
275 QueryKind))
276 return P;
277 break;
278 }
279 }
280 return nullptr;
281}
282
283void ObjCInterfaceDecl::anchor() { }
284
285ObjCTypeParamList *ObjCInterfaceDecl::getTypeParamList() const {
286 // If this particular declaration has a type parameter list, return it.
287 if (ObjCTypeParamList *written = getTypeParamListAsWritten())
288 return written;
289
290 // If there is a definition, return its type parameter list.
291 if (const ObjCInterfaceDecl *def = getDefinition())
292 return def->getTypeParamListAsWritten();
293
294 // Otherwise, look at previous declarations to determine whether any
295 // of them has a type parameter list, skipping over those
296 // declarations that do not.
297 for (auto decl = getMostRecentDecl(); decl; decl = decl->getPreviousDecl()) {
298 if (ObjCTypeParamList *written = decl->getTypeParamListAsWritten())
299 return written;
300 }
301
302 return nullptr;
303}
304
305void ObjCInterfaceDecl::setTypeParamList(ObjCTypeParamList *TPL) {
306 TypeParamList = TPL;
307 if (!TPL)
308 return;
309 // Set the declaration context of each of the type parameters.
310 for (auto typeParam : *TypeParamList)
311 typeParam->setDeclContext(this);
312}
313
314ObjCInterfaceDecl *ObjCInterfaceDecl::getSuperClass() const {
315 // FIXME: Should make sure no callers ever do this.
316 if (!hasDefinition())
317 return nullptr;
318
319 if (data().ExternallyCompleted)
320 LoadExternalDefinition();
321
322 if (const ObjCObjectType *superType = getSuperClassType()) {
323 if (ObjCInterfaceDecl *superDecl = superType->getInterface()) {
324 if (ObjCInterfaceDecl *superDef = superDecl->getDefinition())
325 return superDef;
326
327 return superDecl;
328 }
329 }
330
331 return nullptr;
332}
333
334SourceLocation ObjCInterfaceDecl::getSuperClassLoc() const {
335 if (TypeSourceInfo *superTInfo = getSuperClassTInfo())
336 return superTInfo->getTypeLoc().getLocStart();
337
338 return SourceLocation();
339}
340
341/// FindPropertyVisibleInPrimaryClass - Finds declaration of the property
342/// with name 'PropertyId' in the primary class; including those in protocols
343/// (direct or indirect) used by the primary class.
344///
345ObjCPropertyDecl *
346ObjCInterfaceDecl::FindPropertyVisibleInPrimaryClass(
347 IdentifierInfo *PropertyId,
348 ObjCPropertyQueryKind QueryKind) const {
349 // FIXME: Should make sure no callers ever do this.
350 if (!hasDefinition())
351 return nullptr;
352
353 if (data().ExternallyCompleted)
354 LoadExternalDefinition();
355
356 if (ObjCPropertyDecl *PD =
357 ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(this), PropertyId,
358 QueryKind))
359 return PD;
360
361 // Look through protocols.
362 for (const auto *I : all_referenced_protocols())
363 if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId,
364 QueryKind))
365 return P;
366
367 return nullptr;
368}
369
370void ObjCInterfaceDecl::collectPropertiesToImplement(PropertyMap &PM,
371 PropertyDeclOrder &PO) const {
372 for (auto *Prop : properties()) {
373 PM[std::make_pair(Prop->getIdentifier(), Prop->isClassProperty())] = Prop;
374 PO.push_back(Prop);
375 }
376 for (const auto *Ext : known_extensions()) {
377 const ObjCCategoryDecl *ClassExt = Ext;
378 for (auto *Prop : ClassExt->properties()) {
379 PM[std::make_pair(Prop->getIdentifier(), Prop->isClassProperty())] = Prop;
380 PO.push_back(Prop);
381 }
382 }
383 for (const auto *PI : all_referenced_protocols())
384 PI->collectPropertiesToImplement(PM, PO);
385 // Note, the properties declared only in class extensions are still copied
386 // into the main @interface's property list, and therefore we don't
387 // explicitly, have to search class extension properties.
388}
389
390bool ObjCInterfaceDecl::isArcWeakrefUnavailable() const {
391 const ObjCInterfaceDecl *Class = this;
392 while (Class) {
393 if (Class->hasAttr<ArcWeakrefUnavailableAttr>())
394 return true;
395 Class = Class->getSuperClass();
396 }
397 return false;
398}
399
400const ObjCInterfaceDecl *ObjCInterfaceDecl::isObjCRequiresPropertyDefs() const {
401 const ObjCInterfaceDecl *Class = this;
402 while (Class) {
403 if (Class->hasAttr<ObjCRequiresPropertyDefsAttr>())
404 return Class;
405 Class = Class->getSuperClass();
406 }
407 return nullptr;
408}
409
410void ObjCInterfaceDecl::mergeClassExtensionProtocolList(
411 ObjCProtocolDecl *const* ExtList, unsigned ExtNum,
412 ASTContext &C)
413{
414 if (data().ExternallyCompleted)
415 LoadExternalDefinition();
416
417 if (data().AllReferencedProtocols.empty() &&
418 data().ReferencedProtocols.empty()) {
419 data().AllReferencedProtocols.set(ExtList, ExtNum, C);
420 return;
421 }
422
423 // Check for duplicate protocol in class's protocol list.
424 // This is O(n*m). But it is extremely rare and number of protocols in
425 // class or its extension are very few.
426 SmallVector<ObjCProtocolDecl*, 8> ProtocolRefs;
427 for (unsigned i = 0; i < ExtNum; i++) {
428 bool protocolExists = false;
429 ObjCProtocolDecl *ProtoInExtension = ExtList[i];
430 for (auto *Proto : all_referenced_protocols()) {
431 if (C.ProtocolCompatibleWithProtocol(ProtoInExtension, Proto)) {
432 protocolExists = true;
433 break;
434 }
435 }
436 // Do we want to warn on a protocol in extension class which
437 // already exist in the class? Probably not.
438 if (!protocolExists)
439 ProtocolRefs.push_back(ProtoInExtension);
440 }
441
442 if (ProtocolRefs.empty())
443 return;
444
445 // Merge ProtocolRefs into class's protocol list;
446 ProtocolRefs.append(all_referenced_protocol_begin(),
447 all_referenced_protocol_end());
448
449 data().AllReferencedProtocols.set(ProtocolRefs.data(), ProtocolRefs.size(),C);
450}
451
452const ObjCInterfaceDecl *
453ObjCInterfaceDecl::findInterfaceWithDesignatedInitializers() const {
454 const ObjCInterfaceDecl *IFace = this;
455 while (IFace) {
456 if (IFace->hasDesignatedInitializers())
457 return IFace;
458 if (!IFace->inheritsDesignatedInitializers())
459 break;
460 IFace = IFace->getSuperClass();
461 }
462 return nullptr;
463}
464
465static bool isIntroducingInitializers(const ObjCInterfaceDecl *D) {
466 for (const auto *MD : D->instance_methods()) {
467 if (MD->getMethodFamily() == OMF_init && !MD->isOverriding())
468 return true;
469 }
470 for (const auto *Ext : D->visible_extensions()) {
471 for (const auto *MD : Ext->instance_methods()) {
472 if (MD->getMethodFamily() == OMF_init && !MD->isOverriding())
473 return true;
474 }
475 }
476 if (const auto *ImplD = D->getImplementation()) {
477 for (const auto *MD : ImplD->instance_methods()) {
478 if (MD->getMethodFamily() == OMF_init && !MD->isOverriding())
479 return true;
480 }
481 }
482 return false;
483}
484
485bool ObjCInterfaceDecl::inheritsDesignatedInitializers() const {
486 switch (data().InheritedDesignatedInitializers) {
487 case DefinitionData::IDI_Inherited:
488 return true;
489 case DefinitionData::IDI_NotInherited:
490 return false;
491 case DefinitionData::IDI_Unknown: {
492 // If the class introduced initializers we conservatively assume that we
493 // don't know if any of them is a designated initializer to avoid possible
494 // misleading warnings.
495 if (isIntroducingInitializers(this)) {
496 data().InheritedDesignatedInitializers = DefinitionData::IDI_NotInherited;
497 } else {
498 if (auto SuperD = getSuperClass()) {
499 data().InheritedDesignatedInitializers =
500 SuperD->declaresOrInheritsDesignatedInitializers() ?
501 DefinitionData::IDI_Inherited :
502 DefinitionData::IDI_NotInherited;
503 } else {
504 data().InheritedDesignatedInitializers =
505 DefinitionData::IDI_NotInherited;
506 }
507 }
508 assert(data().InheritedDesignatedInitializers((data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown
) ? static_cast<void> (0) : __assert_fail ("data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 509, __PRETTY_FUNCTION__))
509 != DefinitionData::IDI_Unknown)((data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown
) ? static_cast<void> (0) : __assert_fail ("data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 509, __PRETTY_FUNCTION__))
;
510 return data().InheritedDesignatedInitializers ==
511 DefinitionData::IDI_Inherited;
512 }
513 }
514
515 llvm_unreachable("unexpected InheritedDesignatedInitializers value")::llvm::llvm_unreachable_internal("unexpected InheritedDesignatedInitializers value"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 515)
;
516}
517
518void ObjCInterfaceDecl::getDesignatedInitializers(
519 llvm::SmallVectorImpl<const ObjCMethodDecl *> &Methods) const {
520 // Check for a complete definition and recover if not so.
521 if (!isThisDeclarationADefinition())
522 return;
523 if (data().ExternallyCompleted)
524 LoadExternalDefinition();
525
526 const ObjCInterfaceDecl *IFace= findInterfaceWithDesignatedInitializers();
527 if (!IFace)
528 return;
529
530 for (const auto *MD : IFace->instance_methods())
531 if (MD->isThisDeclarationADesignatedInitializer())
532 Methods.push_back(MD);
533 for (const auto *Ext : IFace->visible_extensions()) {
534 for (const auto *MD : Ext->instance_methods())
535 if (MD->isThisDeclarationADesignatedInitializer())
536 Methods.push_back(MD);
537 }
538}
539
540bool ObjCInterfaceDecl::isDesignatedInitializer(Selector Sel,
541 const ObjCMethodDecl **InitMethod) const {
542 // Check for a complete definition and recover if not so.
543 if (!isThisDeclarationADefinition())
544 return false;
545 if (data().ExternallyCompleted)
546 LoadExternalDefinition();
547
548 const ObjCInterfaceDecl *IFace= findInterfaceWithDesignatedInitializers();
549 if (!IFace)
550 return false;
551
552 if (const ObjCMethodDecl *MD = IFace->getInstanceMethod(Sel)) {
553 if (MD->isThisDeclarationADesignatedInitializer()) {
554 if (InitMethod)
555 *InitMethod = MD;
556 return true;
557 }
558 }
559 for (const auto *Ext : IFace->visible_extensions()) {
560 if (const ObjCMethodDecl *MD = Ext->getInstanceMethod(Sel)) {
561 if (MD->isThisDeclarationADesignatedInitializer()) {
562 if (InitMethod)
563 *InitMethod = MD;
564 return true;
565 }
566 }
567 }
568 return false;
569}
570
571void ObjCInterfaceDecl::allocateDefinitionData() {
572 assert(!hasDefinition() && "ObjC class already has a definition")((!hasDefinition() && "ObjC class already has a definition"
) ? static_cast<void> (0) : __assert_fail ("!hasDefinition() && \"ObjC class already has a definition\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 572, __PRETTY_FUNCTION__))
;
573 Data.setPointer(new (getASTContext()) DefinitionData());
574 Data.getPointer()->Definition = this;
575
576 // Make the type point at the definition, now that we have one.
577 if (TypeForDecl)
578 cast<ObjCInterfaceType>(TypeForDecl)->Decl = this;
579}
580
581void ObjCInterfaceDecl::startDefinition() {
582 allocateDefinitionData();
583
584 // Update all of the declarations with a pointer to the definition.
585 for (auto RD : redecls()) {
586 if (RD != this)
587 RD->Data = Data;
588 }
589}
590
591ObjCIvarDecl *ObjCInterfaceDecl::lookupInstanceVariable(IdentifierInfo *ID,
592 ObjCInterfaceDecl *&clsDeclared) {
593 // FIXME: Should make sure no callers ever do this.
594 if (!hasDefinition())
595 return nullptr;
596
597 if (data().ExternallyCompleted)
598 LoadExternalDefinition();
599
600 ObjCInterfaceDecl* ClassDecl = this;
601 while (ClassDecl != nullptr) {
602 if (ObjCIvarDecl *I = ClassDecl->getIvarDecl(ID)) {
603 clsDeclared = ClassDecl;
604 return I;
605 }
606
607 for (const auto *Ext : ClassDecl->visible_extensions()) {
608 if (ObjCIvarDecl *I = Ext->getIvarDecl(ID)) {
609 clsDeclared = ClassDecl;
610 return I;
611 }
612 }
613
614 ClassDecl = ClassDecl->getSuperClass();
615 }
616 return nullptr;
617}
618
619/// lookupInheritedClass - This method returns ObjCInterfaceDecl * of the super
620/// class whose name is passed as argument. If it is not one of the super classes
621/// the it returns NULL.
622ObjCInterfaceDecl *ObjCInterfaceDecl::lookupInheritedClass(
623 const IdentifierInfo*ICName) {
624 // FIXME: Should make sure no callers ever do this.
625 if (!hasDefinition())
626 return nullptr;
627
628 if (data().ExternallyCompleted)
629 LoadExternalDefinition();
630
631 ObjCInterfaceDecl* ClassDecl = this;
632 while (ClassDecl != nullptr) {
633 if (ClassDecl->getIdentifier() == ICName)
634 return ClassDecl;
635 ClassDecl = ClassDecl->getSuperClass();
636 }
637 return nullptr;
638}
639
640ObjCProtocolDecl *
641ObjCInterfaceDecl::lookupNestedProtocol(IdentifierInfo *Name) {
642 for (auto *P : all_referenced_protocols())
643 if (P->lookupProtocolNamed(Name))
644 return P;
645 ObjCInterfaceDecl *SuperClass = getSuperClass();
646 return SuperClass ? SuperClass->lookupNestedProtocol(Name) : nullptr;
647}
648
649/// lookupMethod - This method returns an instance/class method by looking in
650/// the class, its categories, and its super classes (using a linear search).
651/// When argument category "C" is specified, any implicit method found
652/// in this category is ignored.
653ObjCMethodDecl *ObjCInterfaceDecl::lookupMethod(Selector Sel,
654 bool isInstance,
655 bool shallowCategoryLookup,
656 bool followSuper,
657 const ObjCCategoryDecl *C) const
658{
659 // FIXME: Should make sure no callers ever do this.
660 if (!hasDefinition())
661 return nullptr;
662
663 const ObjCInterfaceDecl* ClassDecl = this;
664 ObjCMethodDecl *MethodDecl = nullptr;
665
666 if (data().ExternallyCompleted)
667 LoadExternalDefinition();
668
669 while (ClassDecl) {
670 // 1. Look through primary class.
671 if ((MethodDecl = ClassDecl->getMethod(Sel, isInstance)))
672 return MethodDecl;
673
674 // 2. Didn't find one yet - now look through categories.
675 for (const auto *Cat : ClassDecl->visible_categories())
676 if ((MethodDecl = Cat->getMethod(Sel, isInstance)))
677 if (C != Cat || !MethodDecl->isImplicit())
678 return MethodDecl;
679
680 // 3. Didn't find one yet - look through primary class's protocols.
681 for (const auto *I : ClassDecl->protocols())
682 if ((MethodDecl = I->lookupMethod(Sel, isInstance)))
683 return MethodDecl;
684
685 // 4. Didn't find one yet - now look through categories' protocols
686 if (!shallowCategoryLookup)
687 for (const auto *Cat : ClassDecl->visible_categories()) {
688 // Didn't find one yet - look through protocols.
689 const ObjCList<ObjCProtocolDecl> &Protocols =
690 Cat->getReferencedProtocols();
691 for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
692 E = Protocols.end(); I != E; ++I)
693 if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance)))
694 if (C != Cat || !MethodDecl->isImplicit())
695 return MethodDecl;
696 }
697
698
699 if (!followSuper)
700 return nullptr;
701
702 // 5. Get to the super class (if any).
703 ClassDecl = ClassDecl->getSuperClass();
704 }
705 return nullptr;
706}
707
708// Will search "local" class/category implementations for a method decl.
709// If failed, then we search in class's root for an instance method.
710// Returns 0 if no method is found.
711ObjCMethodDecl *ObjCInterfaceDecl::lookupPrivateMethod(
712 const Selector &Sel,
713 bool Instance) const {
714 // FIXME: Should make sure no callers ever do this.
715 if (!hasDefinition())
716 return nullptr;
717
718 if (data().ExternallyCompleted)
719 LoadExternalDefinition();
720
721 ObjCMethodDecl *Method = nullptr;
722 if (ObjCImplementationDecl *ImpDecl = getImplementation())
723 Method = Instance ? ImpDecl->getInstanceMethod(Sel)
724 : ImpDecl->getClassMethod(Sel);
725
726 // Look through local category implementations associated with the class.
727 if (!Method)
728 Method = getCategoryMethod(Sel, Instance);
729
730 // Before we give up, check if the selector is an instance method.
731 // But only in the root. This matches gcc's behavior and what the
732 // runtime expects.
733 if (!Instance && !Method && !getSuperClass()) {
734 Method = lookupInstanceMethod(Sel);
735 // Look through local category implementations associated
736 // with the root class.
737 if (!Method)
738 Method = lookupPrivateMethod(Sel, true);
739 }
740
741 if (!Method && getSuperClass())
742 return getSuperClass()->lookupPrivateMethod(Sel, Instance);
743 return Method;
744}
745
746//===----------------------------------------------------------------------===//
747// ObjCMethodDecl
748//===----------------------------------------------------------------------===//
749
750ObjCMethodDecl *ObjCMethodDecl::Create(
751 ASTContext &C, SourceLocation beginLoc, SourceLocation endLoc,
752 Selector SelInfo, QualType T, TypeSourceInfo *ReturnTInfo,
753 DeclContext *contextDecl, bool isInstance, bool isVariadic,
754 bool isPropertyAccessor, bool isImplicitlyDeclared, bool isDefined,
755 ImplementationControl impControl, bool HasRelatedResultType) {
756 return new (C, contextDecl) ObjCMethodDecl(
757 beginLoc, endLoc, SelInfo, T, ReturnTInfo, contextDecl, isInstance,
758 isVariadic, isPropertyAccessor, isImplicitlyDeclared, isDefined,
759 impControl, HasRelatedResultType);
760}
761
762ObjCMethodDecl *ObjCMethodDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
763 return new (C, ID) ObjCMethodDecl(SourceLocation(), SourceLocation(),
764 Selector(), QualType(), nullptr, nullptr);
765}
766
767bool ObjCMethodDecl::isThisDeclarationADesignatedInitializer() const {
768 return getMethodFamily() == OMF_init &&
769 hasAttr<ObjCDesignatedInitializerAttr>();
770}
771
772bool ObjCMethodDecl::isDesignatedInitializerForTheInterface(
773 const ObjCMethodDecl **InitMethod) const {
774 if (getMethodFamily() != OMF_init)
775 return false;
776 const DeclContext *DC = getDeclContext();
777 if (isa<ObjCProtocolDecl>(DC))
778 return false;
779 if (const ObjCInterfaceDecl *ID = getClassInterface())
780 return ID->isDesignatedInitializer(getSelector(), InitMethod);
781 return false;
782}
783
784Stmt *ObjCMethodDecl::getBody() const {
785 return Body.get(getASTContext().getExternalSource());
786}
787
788void ObjCMethodDecl::setAsRedeclaration(const ObjCMethodDecl *PrevMethod) {
789 assert(PrevMethod)((PrevMethod) ? static_cast<void> (0) : __assert_fail (
"PrevMethod", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 789, __PRETTY_FUNCTION__))
;
790 getASTContext().setObjCMethodRedeclaration(PrevMethod, this);
791 IsRedeclaration = true;
792 PrevMethod->HasRedeclaration = true;
793}
794
795void ObjCMethodDecl::setParamsAndSelLocs(ASTContext &C,
796 ArrayRef<ParmVarDecl*> Params,
797 ArrayRef<SourceLocation> SelLocs) {
798 ParamsAndSelLocs = nullptr;
799 NumParams = Params.size();
800 if (Params.empty() && SelLocs.empty())
801 return;
802
803 static_assert(alignof(ParmVarDecl *) >= alignof(SourceLocation),
804 "Alignment not sufficient for SourceLocation");
805
806 unsigned Size = sizeof(ParmVarDecl *) * NumParams +
807 sizeof(SourceLocation) * SelLocs.size();
808 ParamsAndSelLocs = C.Allocate(Size);
809 std::copy(Params.begin(), Params.end(), getParams());
810 std::copy(SelLocs.begin(), SelLocs.end(), getStoredSelLocs());
811}
812
813void ObjCMethodDecl::getSelectorLocs(
814 SmallVectorImpl<SourceLocation> &SelLocs) const {
815 for (unsigned i = 0, e = getNumSelectorLocs(); i != e; ++i)
816 SelLocs.push_back(getSelectorLoc(i));
817}
818
819void ObjCMethodDecl::setMethodParams(ASTContext &C,
820 ArrayRef<ParmVarDecl*> Params,
821 ArrayRef<SourceLocation> SelLocs) {
822 assert((!SelLocs.empty() || isImplicit()) &&(((!SelLocs.empty() || isImplicit()) && "No selector locs for non-implicit method"
) ? static_cast<void> (0) : __assert_fail ("(!SelLocs.empty() || isImplicit()) && \"No selector locs for non-implicit method\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 823, __PRETTY_FUNCTION__))
823 "No selector locs for non-implicit method")(((!SelLocs.empty() || isImplicit()) && "No selector locs for non-implicit method"
) ? static_cast<void> (0) : __assert_fail ("(!SelLocs.empty() || isImplicit()) && \"No selector locs for non-implicit method\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 823, __PRETTY_FUNCTION__))
;
824 if (isImplicit())
825 return setParamsAndSelLocs(C, Params, llvm::None);
826
827 SelLocsKind = hasStandardSelectorLocs(getSelector(), SelLocs, Params,
828 DeclEndLoc);
829 if (SelLocsKind != SelLoc_NonStandard)
830 return setParamsAndSelLocs(C, Params, llvm::None);
831
832 setParamsAndSelLocs(C, Params, SelLocs);
833}
834
835/// \brief A definition will return its interface declaration.
836/// An interface declaration will return its definition.
837/// Otherwise it will return itself.
838ObjCMethodDecl *ObjCMethodDecl::getNextRedeclarationImpl() {
839 ASTContext &Ctx = getASTContext();
840 ObjCMethodDecl *Redecl = nullptr;
841 if (HasRedeclaration)
842 Redecl = const_cast<ObjCMethodDecl*>(Ctx.getObjCMethodRedeclaration(this));
843 if (Redecl)
844 return Redecl;
845
846 Decl *CtxD = cast<Decl>(getDeclContext());
847
848 if (!CtxD->isInvalidDecl()) {
849 if (ObjCInterfaceDecl *IFD = dyn_cast<ObjCInterfaceDecl>(CtxD)) {
850 if (ObjCImplementationDecl *ImplD = Ctx.getObjCImplementation(IFD))
851 if (!ImplD->isInvalidDecl())
852 Redecl = ImplD->getMethod(getSelector(), isInstanceMethod());
853
854 } else if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(CtxD)) {
855 if (ObjCCategoryImplDecl *ImplD = Ctx.getObjCImplementation(CD))
856 if (!ImplD->isInvalidDecl())
857 Redecl = ImplD->getMethod(getSelector(), isInstanceMethod());
858
859 } else if (ObjCImplementationDecl *ImplD =
860 dyn_cast<ObjCImplementationDecl>(CtxD)) {
861 if (ObjCInterfaceDecl *IFD = ImplD->getClassInterface())
862 if (!IFD->isInvalidDecl())
863 Redecl = IFD->getMethod(getSelector(), isInstanceMethod());
864
865 } else if (ObjCCategoryImplDecl *CImplD =
866 dyn_cast<ObjCCategoryImplDecl>(CtxD)) {
867 if (ObjCCategoryDecl *CatD = CImplD->getCategoryDecl())
868 if (!CatD->isInvalidDecl())
869 Redecl = CatD->getMethod(getSelector(), isInstanceMethod());
870 }
871 }
872
873 // Ensure that the discovered method redeclaration has a valid declaration
874 // context. Used to prevent infinite loops when iterating redeclarations in
875 // a partially invalid AST.
876 if (Redecl && cast<Decl>(Redecl->getDeclContext())->isInvalidDecl())
877 Redecl = nullptr;
878
879 if (!Redecl && isRedeclaration()) {
880 // This is the last redeclaration, go back to the first method.
881 return cast<ObjCContainerDecl>(CtxD)->getMethod(getSelector(),
882 isInstanceMethod());
883 }
884
885 return Redecl ? Redecl : this;
886}
887
888ObjCMethodDecl *ObjCMethodDecl::getCanonicalDecl() {
889 Decl *CtxD = cast<Decl>(getDeclContext());
890
891 if (ObjCImplementationDecl *ImplD = dyn_cast<ObjCImplementationDecl>(CtxD)) {
892 if (ObjCInterfaceDecl *IFD = ImplD->getClassInterface())
893 if (ObjCMethodDecl *MD = IFD->getMethod(getSelector(),
894 isInstanceMethod()))
895 return MD;
896
897 } else if (ObjCCategoryImplDecl *CImplD =
898 dyn_cast<ObjCCategoryImplDecl>(CtxD)) {
899 if (ObjCCategoryDecl *CatD = CImplD->getCategoryDecl())
900 if (ObjCMethodDecl *MD = CatD->getMethod(getSelector(),
901 isInstanceMethod()))
902 return MD;
903 }
904
905 if (isRedeclaration()) {
906 // It is possible that we have not done deserializing the ObjCMethod yet.
907 ObjCMethodDecl *MD =
908 cast<ObjCContainerDecl>(CtxD)->getMethod(getSelector(),
909 isInstanceMethod());
910 return MD ? MD : this;
911 }
912
913 return this;
914}
915
916SourceLocation ObjCMethodDecl::getLocEnd() const {
917 if (Stmt *Body = getBody())
918 return Body->getLocEnd();
919 return DeclEndLoc;
920}
921
922ObjCMethodFamily ObjCMethodDecl::getMethodFamily() const {
923 ObjCMethodFamily family = static_cast<ObjCMethodFamily>(Family);
924 if (family != static_cast<unsigned>(InvalidObjCMethodFamily))
925 return family;
926
927 // Check for an explicit attribute.
928 if (const ObjCMethodFamilyAttr *attr = getAttr<ObjCMethodFamilyAttr>()) {
929 // The unfortunate necessity of mapping between enums here is due
930 // to the attributes framework.
931 switch (attr->getFamily()) {
932 case ObjCMethodFamilyAttr::OMF_None: family = OMF_None; break;
933 case ObjCMethodFamilyAttr::OMF_alloc: family = OMF_alloc; break;
934 case ObjCMethodFamilyAttr::OMF_copy: family = OMF_copy; break;
935 case ObjCMethodFamilyAttr::OMF_init: family = OMF_init; break;
936 case ObjCMethodFamilyAttr::OMF_mutableCopy: family = OMF_mutableCopy; break;
937 case ObjCMethodFamilyAttr::OMF_new: family = OMF_new; break;
938 }
939 Family = static_cast<unsigned>(family);
940 return family;
941 }
942
943 family = getSelector().getMethodFamily();
944 switch (family) {
945 case OMF_None: break;
946
947 // init only has a conventional meaning for an instance method, and
948 // it has to return an object.
949 case OMF_init:
950 if (!isInstanceMethod() || !getReturnType()->isObjCObjectPointerType())
951 family = OMF_None;
952 break;
953
954 // alloc/copy/new have a conventional meaning for both class and
955 // instance methods, but they require an object return.
956 case OMF_alloc:
957 case OMF_copy:
958 case OMF_mutableCopy:
959 case OMF_new:
960 if (!getReturnType()->isObjCObjectPointerType())
961 family = OMF_None;
962 break;
963
964 // These selectors have a conventional meaning only for instance methods.
965 case OMF_dealloc:
966 case OMF_finalize:
967 case OMF_retain:
968 case OMF_release:
969 case OMF_autorelease:
970 case OMF_retainCount:
971 case OMF_self:
972 if (!isInstanceMethod())
973 family = OMF_None;
974 break;
975
976 case OMF_initialize:
977 if (isInstanceMethod() || !getReturnType()->isVoidType())
978 family = OMF_None;
979 break;
980
981 case OMF_performSelector:
982 if (!isInstanceMethod() || !getReturnType()->isObjCIdType())
983 family = OMF_None;
984 else {
985 unsigned noParams = param_size();
986 if (noParams < 1 || noParams > 3)
987 family = OMF_None;
988 else {
989 ObjCMethodDecl::param_type_iterator it = param_type_begin();
990 QualType ArgT = (*it);
991 if (!ArgT->isObjCSelType()) {
992 family = OMF_None;
993 break;
994 }
995 while (--noParams) {
996 it++;
997 ArgT = (*it);
998 if (!ArgT->isObjCIdType()) {
999 family = OMF_None;
1000 break;
1001 }
1002 }
1003 }
1004 }
1005 break;
1006
1007 }
1008
1009 // Cache the result.
1010 Family = static_cast<unsigned>(family);
1011 return family;
1012}
1013
1014QualType ObjCMethodDecl::getSelfType(ASTContext &Context,
1015 const ObjCInterfaceDecl *OID,
1016 bool &selfIsPseudoStrong,
1017 bool &selfIsConsumed) {
1018 QualType selfTy;
1019 selfIsPseudoStrong = false;
1020 selfIsConsumed = false;
1021 if (isInstanceMethod()) {
1022 // There may be no interface context due to error in declaration
1023 // of the interface (which has been reported). Recover gracefully.
1024 if (OID) {
1025 selfTy = Context.getObjCInterfaceType(OID);
1026 selfTy = Context.getObjCObjectPointerType(selfTy);
1027 } else {
1028 selfTy = Context.getObjCIdType();
1029 }
1030 } else // we have a factory method.
1031 selfTy = Context.getObjCClassType();
1032
1033 if (Context.getLangOpts().ObjCAutoRefCount) {
1034 if (isInstanceMethod()) {
1035 selfIsConsumed = hasAttr<NSConsumesSelfAttr>();
1036
1037 // 'self' is always __strong. It's actually pseudo-strong except
1038 // in init methods (or methods labeled ns_consumes_self), though.
1039 Qualifiers qs;
1040 qs.setObjCLifetime(Qualifiers::OCL_Strong);
1041 selfTy = Context.getQualifiedType(selfTy, qs);
1042
1043 // In addition, 'self' is const unless this is an init method.
1044 if (getMethodFamily() != OMF_init && !selfIsConsumed) {
1045 selfTy = selfTy.withConst();
1046 selfIsPseudoStrong = true;
1047 }
1048 }
1049 else {
1050 assert(isClassMethod())((isClassMethod()) ? static_cast<void> (0) : __assert_fail
("isClassMethod()", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1050, __PRETTY_FUNCTION__))
;
1051 // 'self' is always const in class methods.
1052 selfTy = selfTy.withConst();
1053 selfIsPseudoStrong = true;
1054 }
1055 }
1056 return selfTy;
1057}
1058
1059void ObjCMethodDecl::createImplicitParams(ASTContext &Context,
1060 const ObjCInterfaceDecl *OID) {
1061 bool selfIsPseudoStrong, selfIsConsumed;
1062 QualType selfTy =
1063 getSelfType(Context, OID, selfIsPseudoStrong, selfIsConsumed);
1064 ImplicitParamDecl *self
1065 = ImplicitParamDecl::Create(Context, this, SourceLocation(),
1066 &Context.Idents.get("self"), selfTy);
1067 setSelfDecl(self);
1068
1069 if (selfIsConsumed)
1070 self->addAttr(NSConsumedAttr::CreateImplicit(Context));
1071
1072 if (selfIsPseudoStrong)
1073 self->setARCPseudoStrong(true);
1074
1075 setCmdDecl(ImplicitParamDecl::Create(Context, this, SourceLocation(),
1076 &Context.Idents.get("_cmd"),
1077 Context.getObjCSelType()));
1078}
1079
1080ObjCInterfaceDecl *ObjCMethodDecl::getClassInterface() {
1081 if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(getDeclContext()))
1082 return ID;
1083 if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(getDeclContext()))
1084 return CD->getClassInterface();
1085 if (ObjCImplDecl *IMD = dyn_cast<ObjCImplDecl>(getDeclContext()))
1086 return IMD->getClassInterface();
1087 if (isa<ObjCProtocolDecl>(getDeclContext()))
1088 return nullptr;
1089 llvm_unreachable("unknown method context")::llvm::llvm_unreachable_internal("unknown method context", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1089)
;
1090}
1091
1092SourceRange ObjCMethodDecl::getReturnTypeSourceRange() const {
1093 const auto *TSI = getReturnTypeSourceInfo();
1094 if (TSI)
1095 return TSI->getTypeLoc().getSourceRange();
1096 return SourceRange();
1097}
1098
1099QualType ObjCMethodDecl::getSendResultType() const {
1100 ASTContext &Ctx = getASTContext();
1101 return getReturnType().getNonLValueExprType(Ctx)
1102 .substObjCTypeArgs(Ctx, {}, ObjCSubstitutionContext::Result);
1103}
1104
1105QualType ObjCMethodDecl::getSendResultType(QualType receiverType) const {
1106 // FIXME: Handle related result types here.
1107
1108 return getReturnType().getNonLValueExprType(getASTContext())
1109 .substObjCMemberType(receiverType, getDeclContext(),
1110 ObjCSubstitutionContext::Result);
1111}
1112
1113static void CollectOverriddenMethodsRecurse(const ObjCContainerDecl *Container,
1114 const ObjCMethodDecl *Method,
1115 SmallVectorImpl<const ObjCMethodDecl *> &Methods,
1116 bool MovedToSuper) {
1117 if (!Container)
1118 return;
1119
1120 // In categories look for overriden methods from protocols. A method from
1121 // category is not "overriden" since it is considered as the "same" method
1122 // (same USR) as the one from the interface.
1123 if (const ObjCCategoryDecl *
1124 Category = dyn_cast<ObjCCategoryDecl>(Container)) {
1125 // Check whether we have a matching method at this category but only if we
1126 // are at the super class level.
1127 if (MovedToSuper)
1128 if (ObjCMethodDecl *
1129 Overridden = Container->getMethod(Method->getSelector(),
1130 Method->isInstanceMethod(),
1131 /*AllowHidden=*/true))
1132 if (Method != Overridden) {
1133 // We found an override at this category; there is no need to look
1134 // into its protocols.
1135 Methods.push_back(Overridden);
1136 return;
1137 }
1138
1139 for (const auto *P : Category->protocols())
1140 CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper);
1141 return;
1142 }
1143
1144 // Check whether we have a matching method at this level.
1145 if (const ObjCMethodDecl *
1146 Overridden = Container->getMethod(Method->getSelector(),
1147 Method->isInstanceMethod(),
1148 /*AllowHidden=*/true))
1149 if (Method != Overridden) {
1150 // We found an override at this level; there is no need to look
1151 // into other protocols or categories.
1152 Methods.push_back(Overridden);
1153 return;
1154 }
1155
1156 if (const ObjCProtocolDecl *Protocol = dyn_cast<ObjCProtocolDecl>(Container)){
1157 for (const auto *P : Protocol->protocols())
1158 CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper);
1159 }
1160
1161 if (const ObjCInterfaceDecl *
1162 Interface = dyn_cast<ObjCInterfaceDecl>(Container)) {
1163 for (const auto *P : Interface->protocols())
1164 CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper);
1165
1166 for (const auto *Cat : Interface->known_categories())
1167 CollectOverriddenMethodsRecurse(Cat, Method, Methods, MovedToSuper);
1168
1169 if (const ObjCInterfaceDecl *Super = Interface->getSuperClass())
1170 return CollectOverriddenMethodsRecurse(Super, Method, Methods,
1171 /*MovedToSuper=*/true);
1172 }
1173}
1174
1175static inline void CollectOverriddenMethods(const ObjCContainerDecl *Container,
1176 const ObjCMethodDecl *Method,
1177 SmallVectorImpl<const ObjCMethodDecl *> &Methods) {
1178 CollectOverriddenMethodsRecurse(Container, Method, Methods,
1179 /*MovedToSuper=*/false);
1180}
1181
1182static void collectOverriddenMethodsSlow(const ObjCMethodDecl *Method,
1183 SmallVectorImpl<const ObjCMethodDecl *> &overridden) {
1184 assert(Method->isOverriding())((Method->isOverriding()) ? static_cast<void> (0) : __assert_fail
("Method->isOverriding()", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1184, __PRETTY_FUNCTION__))
;
1185
1186 if (const ObjCProtocolDecl *
1187 ProtD = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext())) {
1188 CollectOverriddenMethods(ProtD, Method, overridden);
1189
1190 } else if (const ObjCImplDecl *
1191 IMD = dyn_cast<ObjCImplDecl>(Method->getDeclContext())) {
1192 const ObjCInterfaceDecl *ID = IMD->getClassInterface();
1193 if (!ID)
1194 return;
1195 // Start searching for overridden methods using the method from the
1196 // interface as starting point.
1197 if (const ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(),
1198 Method->isInstanceMethod(),
1199 /*AllowHidden=*/true))
1200 Method = IFaceMeth;
1201 CollectOverriddenMethods(ID, Method, overridden);
1202
1203 } else if (const ObjCCategoryDecl *
1204 CatD = dyn_cast<ObjCCategoryDecl>(Method->getDeclContext())) {
1205 const ObjCInterfaceDecl *ID = CatD->getClassInterface();
1206 if (!ID)
1207 return;
1208 // Start searching for overridden methods using the method from the
1209 // interface as starting point.
1210 if (const ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(),
1211 Method->isInstanceMethod(),
1212 /*AllowHidden=*/true))
1213 Method = IFaceMeth;
1214 CollectOverriddenMethods(ID, Method, overridden);
1215
1216 } else {
1217 CollectOverriddenMethods(
1218 dyn_cast_or_null<ObjCContainerDecl>(Method->getDeclContext()),
1219 Method, overridden);
1220 }
1221}
1222
1223void ObjCMethodDecl::getOverriddenMethods(
1224 SmallVectorImpl<const ObjCMethodDecl *> &Overridden) const {
1225 const ObjCMethodDecl *Method = this;
1226
1227 if (Method->isRedeclaration()) {
1228 Method = cast<ObjCContainerDecl>(Method->getDeclContext())->
1229 getMethod(Method->getSelector(), Method->isInstanceMethod());
1230 }
1231
1232 if (Method->isOverriding()) {
1233 collectOverriddenMethodsSlow(Method, Overridden);
1234 assert(!Overridden.empty() &&((!Overridden.empty() && "ObjCMethodDecl's overriding bit is not as expected"
) ? static_cast<void> (0) : __assert_fail ("!Overridden.empty() && \"ObjCMethodDecl's overriding bit is not as expected\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1235, __PRETTY_FUNCTION__))
1235 "ObjCMethodDecl's overriding bit is not as expected")((!Overridden.empty() && "ObjCMethodDecl's overriding bit is not as expected"
) ? static_cast<void> (0) : __assert_fail ("!Overridden.empty() && \"ObjCMethodDecl's overriding bit is not as expected\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1235, __PRETTY_FUNCTION__))
;
1236 }
1237}
1238
1239const ObjCPropertyDecl *
1240ObjCMethodDecl::findPropertyDecl(bool CheckOverrides) const {
1241 Selector Sel = getSelector();
1242 unsigned NumArgs = Sel.getNumArgs();
1243 if (NumArgs > 1)
1244 return nullptr;
1245
1246 if (isPropertyAccessor()) {
1247 const ObjCContainerDecl *Container = cast<ObjCContainerDecl>(getParent());
1248 bool IsGetter = (NumArgs == 0);
1249 bool IsInstance = isInstanceMethod();
1250
1251 /// Local function that attempts to find a matching property within the
1252 /// given Objective-C container.
1253 auto findMatchingProperty =
1254 [&](const ObjCContainerDecl *Container) -> const ObjCPropertyDecl * {
1255 if (IsInstance) {
1256 for (const auto *I : Container->instance_properties()) {
1257 Selector NextSel = IsGetter ? I->getGetterName()
1258 : I->getSetterName();
1259 if (NextSel == Sel)
1260 return I;
1261 }
1262 } else {
1263 for (const auto *I : Container->class_properties()) {
1264 Selector NextSel = IsGetter ? I->getGetterName()
1265 : I->getSetterName();
1266 if (NextSel == Sel)
1267 return I;
1268 }
1269 }
1270
1271 return nullptr;
1272 };
1273
1274 // Look in the container we were given.
1275 if (const auto *Found = findMatchingProperty(Container))
1276 return Found;
1277
1278 // If we're in a category or extension, look in the main class.
1279 const ObjCInterfaceDecl *ClassDecl = nullptr;
1280 if (const auto *Category = dyn_cast<ObjCCategoryDecl>(Container)) {
1281 ClassDecl = Category->getClassInterface();
1282 if (const auto *Found = findMatchingProperty(ClassDecl))
1283 return Found;
1284 } else {
1285 // Determine whether the container is a class.
1286 ClassDecl = dyn_cast<ObjCInterfaceDecl>(Container);
1287 }
1288
1289 // If we have a class, check its visible extensions.
1290 if (ClassDecl) {
1291 for (const auto *Ext : ClassDecl->visible_extensions()) {
1292 if (Ext == Container)
1293 continue;
1294
1295 if (const auto *Found = findMatchingProperty(Ext))
1296 return Found;
1297 }
1298 }
1299
1300 llvm_unreachable("Marked as a property accessor but no property found!")::llvm::llvm_unreachable_internal("Marked as a property accessor but no property found!"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1300)
;
1301 }
1302
1303 if (!CheckOverrides)
1304 return nullptr;
1305
1306 typedef SmallVector<const ObjCMethodDecl *, 8> OverridesTy;
1307 OverridesTy Overrides;
1308 getOverriddenMethods(Overrides);
1309 for (OverridesTy::const_iterator I = Overrides.begin(), E = Overrides.end();
1310 I != E; ++I) {
1311 if (const ObjCPropertyDecl *Prop = (*I)->findPropertyDecl(false))
1312 return Prop;
1313 }
1314
1315 return nullptr;
1316}
1317
1318//===----------------------------------------------------------------------===//
1319// ObjCTypeParamDecl
1320//===----------------------------------------------------------------------===//
1321
1322void ObjCTypeParamDecl::anchor() { }
1323
1324ObjCTypeParamDecl *ObjCTypeParamDecl::Create(ASTContext &ctx, DeclContext *dc,
1325 ObjCTypeParamVariance variance,
1326 SourceLocation varianceLoc,
1327 unsigned index,
1328 SourceLocation nameLoc,
1329 IdentifierInfo *name,
1330 SourceLocation colonLoc,
1331 TypeSourceInfo *boundInfo) {
1332 auto *TPDecl =
1333 new (ctx, dc) ObjCTypeParamDecl(ctx, dc, variance, varianceLoc, index,
1334 nameLoc, name, colonLoc, boundInfo);
1335 QualType TPType = ctx.getObjCTypeParamType(TPDecl, {});
1336 TPDecl->setTypeForDecl(TPType.getTypePtr());
1337 return TPDecl;
1338}
1339
1340ObjCTypeParamDecl *ObjCTypeParamDecl::CreateDeserialized(ASTContext &ctx,
1341 unsigned ID) {
1342 return new (ctx, ID) ObjCTypeParamDecl(ctx, nullptr,
1343 ObjCTypeParamVariance::Invariant,
1344 SourceLocation(), 0, SourceLocation(),
1345 nullptr, SourceLocation(), nullptr);
1346}
1347
1348SourceRange ObjCTypeParamDecl::getSourceRange() const {
1349 SourceLocation startLoc = VarianceLoc;
1350 if (startLoc.isInvalid())
1351 startLoc = getLocation();
1352
1353 if (hasExplicitBound()) {
1354 return SourceRange(startLoc,
1355 getTypeSourceInfo()->getTypeLoc().getEndLoc());
1356 }
1357
1358 return SourceRange(startLoc);
1359}
1360
1361//===----------------------------------------------------------------------===//
1362// ObjCTypeParamList
1363//===----------------------------------------------------------------------===//
1364ObjCTypeParamList::ObjCTypeParamList(SourceLocation lAngleLoc,
1365 ArrayRef<ObjCTypeParamDecl *> typeParams,
1366 SourceLocation rAngleLoc)
1367 : NumParams(typeParams.size())
1368{
1369 Brackets.Begin = lAngleLoc.getRawEncoding();
1370 Brackets.End = rAngleLoc.getRawEncoding();
1371 std::copy(typeParams.begin(), typeParams.end(), begin());
1372}
1373
1374
1375ObjCTypeParamList *ObjCTypeParamList::create(
1376 ASTContext &ctx,
1377 SourceLocation lAngleLoc,
1378 ArrayRef<ObjCTypeParamDecl *> typeParams,
1379 SourceLocation rAngleLoc) {
1380 void *mem =
1381 ctx.Allocate(totalSizeToAlloc<ObjCTypeParamDecl *>(typeParams.size()),
1382 alignof(ObjCTypeParamList));
1383 return new (mem) ObjCTypeParamList(lAngleLoc, typeParams, rAngleLoc);
1384}
1385
1386void ObjCTypeParamList::gatherDefaultTypeArgs(
1387 SmallVectorImpl<QualType> &typeArgs) const {
1388 typeArgs.reserve(size());
1389 for (auto typeParam : *this)
1390 typeArgs.push_back(typeParam->getUnderlyingType());
1391}
1392
1393//===----------------------------------------------------------------------===//
1394// ObjCInterfaceDecl
1395//===----------------------------------------------------------------------===//
1396
1397ObjCInterfaceDecl *ObjCInterfaceDecl::Create(const ASTContext &C,
1398 DeclContext *DC,
1399 SourceLocation atLoc,
1400 IdentifierInfo *Id,
1401 ObjCTypeParamList *typeParamList,
1402 ObjCInterfaceDecl *PrevDecl,
1403 SourceLocation ClassLoc,
1404 bool isInternal){
1405 ObjCInterfaceDecl *Result = new (C, DC)
1406 ObjCInterfaceDecl(C, DC, atLoc, Id, typeParamList, ClassLoc, PrevDecl,
1407 isInternal);
1408 Result->Data.setInt(!C.getLangOpts().Modules);
1409 C.getObjCInterfaceType(Result, PrevDecl);
1410 return Result;
1411}
1412
1413ObjCInterfaceDecl *ObjCInterfaceDecl::CreateDeserialized(const ASTContext &C,
1414 unsigned ID) {
1415 ObjCInterfaceDecl *Result = new (C, ID) ObjCInterfaceDecl(C, nullptr,
1416 SourceLocation(),
1417 nullptr,
1418 nullptr,
1419 SourceLocation(),
1420 nullptr, false);
1421 Result->Data.setInt(!C.getLangOpts().Modules);
1422 return Result;
1423}
1424
1425ObjCInterfaceDecl::ObjCInterfaceDecl(const ASTContext &C, DeclContext *DC,
1426 SourceLocation AtLoc, IdentifierInfo *Id,
1427 ObjCTypeParamList *typeParamList,
1428 SourceLocation CLoc,
1429 ObjCInterfaceDecl *PrevDecl,
1430 bool IsInternal)
1431 : ObjCContainerDecl(ObjCInterface, DC, Id, CLoc, AtLoc),
1432 redeclarable_base(C), TypeForDecl(nullptr), TypeParamList(nullptr),
1433 Data() {
1434 setPreviousDecl(PrevDecl);
1435
1436 // Copy the 'data' pointer over.
1437 if (PrevDecl)
1438 Data = PrevDecl->Data;
1439
1440 setImplicit(IsInternal);
1441
1442 setTypeParamList(typeParamList);
1443}
1444
1445void ObjCInterfaceDecl::LoadExternalDefinition() const {
1446 assert(data().ExternallyCompleted && "Class is not externally completed")((data().ExternallyCompleted && "Class is not externally completed"
) ? static_cast<void> (0) : __assert_fail ("data().ExternallyCompleted && \"Class is not externally completed\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1446, __PRETTY_FUNCTION__))
;
1447 data().ExternallyCompleted = false;
1448 getASTContext().getExternalSource()->CompleteType(
1449 const_cast<ObjCInterfaceDecl *>(this));
1450}
1451
1452void ObjCInterfaceDecl::setExternallyCompleted() {
1453 assert(getASTContext().getExternalSource() &&((getASTContext().getExternalSource() && "Class can't be externally completed without an external source"
) ? static_cast<void> (0) : __assert_fail ("getASTContext().getExternalSource() && \"Class can't be externally completed without an external source\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1454, __PRETTY_FUNCTION__))
1454 "Class can't be externally completed without an external source")((getASTContext().getExternalSource() && "Class can't be externally completed without an external source"
) ? static_cast<void> (0) : __assert_fail ("getASTContext().getExternalSource() && \"Class can't be externally completed without an external source\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1454, __PRETTY_FUNCTION__))
;
1455 assert(hasDefinition() &&((hasDefinition() && "Forward declarations can't be externally completed"
) ? static_cast<void> (0) : __assert_fail ("hasDefinition() && \"Forward declarations can't be externally completed\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1456, __PRETTY_FUNCTION__))
1456 "Forward declarations can't be externally completed")((hasDefinition() && "Forward declarations can't be externally completed"
) ? static_cast<void> (0) : __assert_fail ("hasDefinition() && \"Forward declarations can't be externally completed\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1456, __PRETTY_FUNCTION__))
;
1457 data().ExternallyCompleted = true;
1458}
1459
1460void ObjCInterfaceDecl::setHasDesignatedInitializers() {
1461 // Check for a complete definition and recover if not so.
1462 if (!isThisDeclarationADefinition())
1463 return;
1464 data().HasDesignatedInitializers = true;
1465}
1466
1467bool ObjCInterfaceDecl::hasDesignatedInitializers() const {
1468 // Check for a complete definition and recover if not so.
1469 if (!isThisDeclarationADefinition())
1470 return false;
1471 if (data().ExternallyCompleted)
1472 LoadExternalDefinition();
1473
1474 return data().HasDesignatedInitializers;
1475}
1476
1477StringRef
1478ObjCInterfaceDecl::getObjCRuntimeNameAsString() const {
1479 if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>())
1480 return ObjCRTName->getMetadataName();
1481
1482 return getName();
1483}
1484
1485StringRef
1486ObjCImplementationDecl::getObjCRuntimeNameAsString() const {
1487 if (ObjCInterfaceDecl *ID =
1488 const_cast<ObjCImplementationDecl*>(this)->getClassInterface())
1489 return ID->getObjCRuntimeNameAsString();
1490
1491 return getName();
1492}
1493
1494ObjCImplementationDecl *ObjCInterfaceDecl::getImplementation() const {
1495 if (const ObjCInterfaceDecl *Def = getDefinition()) {
1496 if (data().ExternallyCompleted)
1497 LoadExternalDefinition();
1498
1499 return getASTContext().getObjCImplementation(
1500 const_cast<ObjCInterfaceDecl*>(Def));
1501 }
1502
1503 // FIXME: Should make sure no callers ever do this.
1504 return nullptr;
1505}
1506
1507void ObjCInterfaceDecl::setImplementation(ObjCImplementationDecl *ImplD) {
1508 getASTContext().setObjCImplementation(getDefinition(), ImplD);
1509}
1510
1511namespace {
1512 struct SynthesizeIvarChunk {
1513 uint64_t Size;
1514 ObjCIvarDecl *Ivar;
1515 SynthesizeIvarChunk(uint64_t size, ObjCIvarDecl *ivar)
1516 : Size(size), Ivar(ivar) {}
1517 };
1518
1519 bool operator<(const SynthesizeIvarChunk & LHS,
1520 const SynthesizeIvarChunk &RHS) {
1521 return LHS.Size < RHS.Size;
1522 }
1523}
1524
1525/// all_declared_ivar_begin - return first ivar declared in this class,
1526/// its extensions and its implementation. Lazily build the list on first
1527/// access.
1528///
1529/// Caveat: The list returned by this method reflects the current
1530/// state of the parser. The cache will be updated for every ivar
1531/// added by an extension or the implementation when they are
1532/// encountered.
1533/// See also ObjCIvarDecl::Create().
1534ObjCIvarDecl *ObjCInterfaceDecl::all_declared_ivar_begin() {
1535 // FIXME: Should make sure no callers ever do this.
1536 if (!hasDefinition())
1
Assuming the condition is false
2
Taking false branch
1537 return nullptr;
1538
1539 ObjCIvarDecl *curIvar = nullptr;
3
'curIvar' initialized to a null pointer value
1540 if (!data().IvarList) {
4
Assuming the condition is false
5
Taking false branch
1541 if (!ivar_empty()) {
1542 ObjCInterfaceDecl::ivar_iterator I = ivar_begin(), E = ivar_end();
1543 data().IvarList = *I; ++I;
1544 for (curIvar = data().IvarList; I != E; curIvar = *I, ++I)
1545 curIvar->setNextIvar(*I);
1546 }
1547
1548 for (const auto *Ext : known_extensions()) {
1549 if (!Ext->ivar_empty()) {
1550 ObjCCategoryDecl::ivar_iterator
1551 I = Ext->ivar_begin(),
1552 E = Ext->ivar_end();
1553 if (!data().IvarList) {
1554 data().IvarList = *I; ++I;
1555 curIvar = data().IvarList;
1556 }
1557 for ( ;I != E; curIvar = *I, ++I)
1558 curIvar->setNextIvar(*I);
1559 }
1560 }
1561 data().IvarListMissingImplementation = true;
1562 }
1563
1564 // cached and complete!
1565 if (!data().IvarListMissingImplementation)
6
Assuming the condition is false
7
Taking false branch
1566 return data().IvarList;
1567
1568 if (ObjCImplementationDecl *ImplDecl = getImplementation()) {
8
Assuming 'ImplDecl' is non-null
9
Taking true branch
1569 data().IvarListMissingImplementation = false;
1570 if (!ImplDecl->ivar_empty()) {
10
Taking true branch
1571 SmallVector<SynthesizeIvarChunk, 16> layout;
1572 for (auto *IV : ImplDecl->ivars()) {
1573 if (IV->getSynthesize() && !IV->isInvalidDecl()) {
1574 layout.push_back(SynthesizeIvarChunk(
1575 IV->getASTContext().getTypeSize(IV->getType()), IV));
1576 continue;
1577 }
1578 if (!data().IvarList)
1579 data().IvarList = IV;
1580 else
1581 curIvar->setNextIvar(IV);
1582 curIvar = IV;
1583 }
1584
1585 if (!layout.empty()) {
11
Taking true branch
1586 // Order synthesized ivars by their size.
1587 std::stable_sort(layout.begin(), layout.end());
1588 unsigned Ix = 0, EIx = layout.size();
1589 if (!data().IvarList) {
12
Assuming the condition is false
13
Taking false branch
1590 data().IvarList = layout[0].Ivar; Ix++;
1591 curIvar = data().IvarList;
1592 }
1593 for ( ; Ix != EIx; curIvar = layout[Ix].Ivar, Ix++)
14
Assuming 'Ix' is not equal to 'EIx'
15
Loop condition is true. Entering loop body
1594 curIvar->setNextIvar(layout[Ix].Ivar);
16
Called C++ object pointer is null
1595 }
1596 }
1597 }
1598 return data().IvarList;
1599}
1600
1601/// FindCategoryDeclaration - Finds category declaration in the list of
1602/// categories for this class and returns it. Name of the category is passed
1603/// in 'CategoryId'. If category not found, return 0;
1604///
1605ObjCCategoryDecl *
1606ObjCInterfaceDecl::FindCategoryDeclaration(IdentifierInfo *CategoryId) const {
1607 // FIXME: Should make sure no callers ever do this.
1608 if (!hasDefinition())
1609 return nullptr;
1610
1611 if (data().ExternallyCompleted)
1612 LoadExternalDefinition();
1613
1614 for (auto *Cat : visible_categories())
1615 if (Cat->getIdentifier() == CategoryId)
1616 return Cat;
1617
1618 return nullptr;
1619}
1620
1621ObjCMethodDecl *
1622ObjCInterfaceDecl::getCategoryInstanceMethod(Selector Sel) const {
1623 for (const auto *Cat : visible_categories()) {
1624 if (ObjCCategoryImplDecl *Impl = Cat->getImplementation())
1625 if (ObjCMethodDecl *MD = Impl->getInstanceMethod(Sel))
1626 return MD;
1627 }
1628
1629 return nullptr;
1630}
1631
1632ObjCMethodDecl *ObjCInterfaceDecl::getCategoryClassMethod(Selector Sel) const {
1633 for (const auto *Cat : visible_categories()) {
1634 if (ObjCCategoryImplDecl *Impl = Cat->getImplementation())
1635 if (ObjCMethodDecl *MD = Impl->getClassMethod(Sel))
1636 return MD;
1637 }
1638
1639 return nullptr;
1640}
1641
1642/// ClassImplementsProtocol - Checks that 'lProto' protocol
1643/// has been implemented in IDecl class, its super class or categories (if
1644/// lookupCategory is true).
1645bool ObjCInterfaceDecl::ClassImplementsProtocol(ObjCProtocolDecl *lProto,
1646 bool lookupCategory,
1647 bool RHSIsQualifiedID) {
1648 if (!hasDefinition())
1649 return false;
1650
1651 ObjCInterfaceDecl *IDecl = this;
1652 // 1st, look up the class.
1653 for (auto *PI : IDecl->protocols()){
1654 if (getASTContext().ProtocolCompatibleWithProtocol(lProto, PI))
1655 return true;
1656 // This is dubious and is added to be compatible with gcc. In gcc, it is
1657 // also allowed assigning a protocol-qualified 'id' type to a LHS object
1658 // when protocol in qualified LHS is in list of protocols in the rhs 'id'
1659 // object. This IMO, should be a bug.
1660 // FIXME: Treat this as an extension, and flag this as an error when GCC
1661 // extensions are not enabled.
1662 if (RHSIsQualifiedID &&
1663 getASTContext().ProtocolCompatibleWithProtocol(PI, lProto))
1664 return true;
1665 }
1666
1667 // 2nd, look up the category.
1668 if (lookupCategory)
1669 for (const auto *Cat : visible_categories()) {
1670 for (auto *PI : Cat->protocols())
1671 if (getASTContext().ProtocolCompatibleWithProtocol(lProto, PI))
1672 return true;
1673 }
1674
1675 // 3rd, look up the super class(s)
1676 if (IDecl->getSuperClass())
1677 return
1678 IDecl->getSuperClass()->ClassImplementsProtocol(lProto, lookupCategory,
1679 RHSIsQualifiedID);
1680
1681 return false;
1682}
1683
1684//===----------------------------------------------------------------------===//
1685// ObjCIvarDecl
1686//===----------------------------------------------------------------------===//
1687
1688void ObjCIvarDecl::anchor() { }
1689
1690ObjCIvarDecl *ObjCIvarDecl::Create(ASTContext &C, ObjCContainerDecl *DC,
1691 SourceLocation StartLoc,
1692 SourceLocation IdLoc, IdentifierInfo *Id,
1693 QualType T, TypeSourceInfo *TInfo,
1694 AccessControl ac, Expr *BW,
1695 bool synthesized) {
1696 if (DC) {
1697 // Ivar's can only appear in interfaces, implementations (via synthesized
1698 // properties), and class extensions (via direct declaration, or synthesized
1699 // properties).
1700 //
1701 // FIXME: This should really be asserting this:
1702 // (isa<ObjCCategoryDecl>(DC) &&
1703 // cast<ObjCCategoryDecl>(DC)->IsClassExtension()))
1704 // but unfortunately we sometimes place ivars into non-class extension
1705 // categories on error. This breaks an AST invariant, and should not be
1706 // fixed.
1707 assert((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) ||(((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl
>(DC) || isa<ObjCCategoryDecl>(DC)) && "Invalid ivar decl context!"
) ? static_cast<void> (0) : __assert_fail ("(isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl>(DC)) && \"Invalid ivar decl context!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1709, __PRETTY_FUNCTION__))
1708 isa<ObjCCategoryDecl>(DC)) &&(((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl
>(DC) || isa<ObjCCategoryDecl>(DC)) && "Invalid ivar decl context!"
) ? static_cast<void> (0) : __assert_fail ("(isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl>(DC)) && \"Invalid ivar decl context!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1709, __PRETTY_FUNCTION__))
1709 "Invalid ivar decl context!")(((isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl
>(DC) || isa<ObjCCategoryDecl>(DC)) && "Invalid ivar decl context!"
) ? static_cast<void> (0) : __assert_fail ("(isa<ObjCInterfaceDecl>(DC) || isa<ObjCImplementationDecl>(DC) || isa<ObjCCategoryDecl>(DC)) && \"Invalid ivar decl context!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1709, __PRETTY_FUNCTION__))
;
1710 // Once a new ivar is created in any of class/class-extension/implementation
1711 // decl contexts, the previously built IvarList must be rebuilt.
1712 ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(DC);
1713 if (!ID) {
1714 if (ObjCImplementationDecl *IM = dyn_cast<ObjCImplementationDecl>(DC))
1715 ID = IM->getClassInterface();
1716 else
1717 ID = cast<ObjCCategoryDecl>(DC)->getClassInterface();
1718 }
1719 ID->setIvarList(nullptr);
1720 }
1721
1722 return new (C, DC) ObjCIvarDecl(DC, StartLoc, IdLoc, Id, T, TInfo, ac, BW,
1723 synthesized);
1724}
1725
1726ObjCIvarDecl *ObjCIvarDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
1727 return new (C, ID) ObjCIvarDecl(nullptr, SourceLocation(), SourceLocation(),
1728 nullptr, QualType(), nullptr,
1729 ObjCIvarDecl::None, nullptr, false);
1730}
1731
1732const ObjCInterfaceDecl *ObjCIvarDecl::getContainingInterface() const {
1733 const ObjCContainerDecl *DC = cast<ObjCContainerDecl>(getDeclContext());
1734
1735 switch (DC->getKind()) {
1736 default:
1737 case ObjCCategoryImpl:
1738 case ObjCProtocol:
1739 llvm_unreachable("invalid ivar container!")::llvm::llvm_unreachable_internal("invalid ivar container!", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1739)
;
1740
1741 // Ivars can only appear in class extension categories.
1742 case ObjCCategory: {
1743 const ObjCCategoryDecl *CD = cast<ObjCCategoryDecl>(DC);
1744 assert(CD->IsClassExtension() && "invalid container for ivar!")((CD->IsClassExtension() && "invalid container for ivar!"
) ? static_cast<void> (0) : __assert_fail ("CD->IsClassExtension() && \"invalid container for ivar!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1744, __PRETTY_FUNCTION__))
;
1745 return CD->getClassInterface();
1746 }
1747
1748 case ObjCImplementation:
1749 return cast<ObjCImplementationDecl>(DC)->getClassInterface();
1750
1751 case ObjCInterface:
1752 return cast<ObjCInterfaceDecl>(DC);
1753 }
1754}
1755
1756QualType ObjCIvarDecl::getUsageType(QualType objectType) const {
1757 return getType().substObjCMemberType(objectType, getDeclContext(),
1758 ObjCSubstitutionContext::Property);
1759}
1760
1761//===----------------------------------------------------------------------===//
1762// ObjCAtDefsFieldDecl
1763//===----------------------------------------------------------------------===//
1764
1765void ObjCAtDefsFieldDecl::anchor() { }
1766
1767ObjCAtDefsFieldDecl
1768*ObjCAtDefsFieldDecl::Create(ASTContext &C, DeclContext *DC,
1769 SourceLocation StartLoc, SourceLocation IdLoc,
1770 IdentifierInfo *Id, QualType T, Expr *BW) {
1771 return new (C, DC) ObjCAtDefsFieldDecl(DC, StartLoc, IdLoc, Id, T, BW);
1772}
1773
1774ObjCAtDefsFieldDecl *ObjCAtDefsFieldDecl::CreateDeserialized(ASTContext &C,
1775 unsigned ID) {
1776 return new (C, ID) ObjCAtDefsFieldDecl(nullptr, SourceLocation(),
1777 SourceLocation(), nullptr, QualType(),
1778 nullptr);
1779}
1780
1781//===----------------------------------------------------------------------===//
1782// ObjCProtocolDecl
1783//===----------------------------------------------------------------------===//
1784
1785void ObjCProtocolDecl::anchor() { }
1786
1787ObjCProtocolDecl::ObjCProtocolDecl(ASTContext &C, DeclContext *DC,
1788 IdentifierInfo *Id, SourceLocation nameLoc,
1789 SourceLocation atStartLoc,
1790 ObjCProtocolDecl *PrevDecl)
1791 : ObjCContainerDecl(ObjCProtocol, DC, Id, nameLoc, atStartLoc),
1792 redeclarable_base(C), Data() {
1793 setPreviousDecl(PrevDecl);
1794 if (PrevDecl)
1795 Data = PrevDecl->Data;
1796}
1797
1798ObjCProtocolDecl *ObjCProtocolDecl::Create(ASTContext &C, DeclContext *DC,
1799 IdentifierInfo *Id,
1800 SourceLocation nameLoc,
1801 SourceLocation atStartLoc,
1802 ObjCProtocolDecl *PrevDecl) {
1803 ObjCProtocolDecl *Result =
1804 new (C, DC) ObjCProtocolDecl(C, DC, Id, nameLoc, atStartLoc, PrevDecl);
1805 Result->Data.setInt(!C.getLangOpts().Modules);
1806 return Result;
1807}
1808
1809ObjCProtocolDecl *ObjCProtocolDecl::CreateDeserialized(ASTContext &C,
1810 unsigned ID) {
1811 ObjCProtocolDecl *Result =
1812 new (C, ID) ObjCProtocolDecl(C, nullptr, nullptr, SourceLocation(),
1813 SourceLocation(), nullptr);
1814 Result->Data.setInt(!C.getLangOpts().Modules);
1815 return Result;
1816}
1817
1818ObjCProtocolDecl *ObjCProtocolDecl::lookupProtocolNamed(IdentifierInfo *Name) {
1819 ObjCProtocolDecl *PDecl = this;
1820
1821 if (Name == getIdentifier())
1822 return PDecl;
1823
1824 for (auto *I : protocols())
1825 if ((PDecl = I->lookupProtocolNamed(Name)))
1826 return PDecl;
1827
1828 return nullptr;
1829}
1830
1831// lookupMethod - Lookup a instance/class method in the protocol and protocols
1832// it inherited.
1833ObjCMethodDecl *ObjCProtocolDecl::lookupMethod(Selector Sel,
1834 bool isInstance) const {
1835 ObjCMethodDecl *MethodDecl = nullptr;
1836
1837 // If there is no definition or the definition is hidden, we don't find
1838 // anything.
1839 const ObjCProtocolDecl *Def = getDefinition();
1840 if (!Def || Def->isHidden())
1841 return nullptr;
1842
1843 if ((MethodDecl = getMethod(Sel, isInstance)))
1844 return MethodDecl;
1845
1846 for (const auto *I : protocols())
1847 if ((MethodDecl = I->lookupMethod(Sel, isInstance)))
1848 return MethodDecl;
1849 return nullptr;
1850}
1851
1852void ObjCProtocolDecl::allocateDefinitionData() {
1853 assert(!Data.getPointer() && "Protocol already has a definition!")((!Data.getPointer() && "Protocol already has a definition!"
) ? static_cast<void> (0) : __assert_fail ("!Data.getPointer() && \"Protocol already has a definition!\""
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn296300/tools/clang/lib/AST/DeclObjC.cpp"
, 1853, __PRETTY_FUNCTION__))
;
1854 Data.setPointer(new (getASTContext()) DefinitionData);
1855 Data.getPointer()->Definition = this;
1856}
1857
1858void ObjCProtocolDecl::startDefinition() {
1859 allocateDefinitionData();
1860
1861 // Update all of the declarations with a pointer to the definition.
1862 for (auto RD : redecls())
1863 RD->Data = this->Data;
1864}
1865
1866void ObjCProtocolDecl::collectPropertiesToImplement(PropertyMap &PM,
1867 PropertyDeclOrder &PO) const {
1868
1869 if (const ObjCProtocolDecl *PDecl = getDefinition()) {
1870 for (auto *Prop : PDecl->properties()) {
1871 // Insert into PM if not there already.
1872 PM.insert(std::make_pair(
1873 std::make_pair(Prop->getIdentifier(), Prop->isClassProperty()),
1874 Prop));
1875 PO.push_back(Prop);
1876 }
1877 // Scan through protocol's protocols.
1878 for (const auto *PI : PDecl->protocols())
1879 PI->collectPropertiesToImplement(PM, PO);
1880 }
1881}
1882
1883
1884void ObjCProtocolDecl::collectInheritedProtocolProperties(
1885 const ObjCPropertyDecl *Property,
1886 ProtocolPropertyMap &PM) const {
1887 if (const ObjCProtocolDecl *PDecl = getDefinition()) {
1888 bool MatchFound = false;
1889 for (auto *Prop : PDecl->properties()) {
1890 if (Prop == Property)
1891 continue;
1892 if (Prop->getIdentifier() == Property->getIdentifier()) {
1893 PM[PDecl] = Prop;
1894 MatchFound = true;
1895 break;
1896 }
1897 }
1898 // Scan through protocol's protocols which did not have a matching property.
1899 if (!MatchFound)
1900 for (const auto *PI : PDecl->protocols())
1901 PI->collectInheritedProtocolProperties(Property, PM);
1902 }
1903}
1904
1905StringRef
1906ObjCProtocolDecl::getObjCRuntimeNameAsString() const {
1907 if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>())
1908 return ObjCRTName->getMetadataName();
1909
1910 return getName();
1911}
1912
1913//===----------------------------------------------------------------------===//
1914// ObjCCategoryDecl
1915//===----------------------------------------------------------------------===//
1916
1917void ObjCCategoryDecl::anchor() { }
1918
1919ObjCCategoryDecl::ObjCCategoryDecl(DeclContext *DC, SourceLocation AtLoc,
1920 SourceLocation ClassNameLoc,
1921 SourceLocation CategoryNameLoc,
1922 IdentifierInfo *Id, ObjCInterfaceDecl *IDecl,
1923 ObjCTypeParamList *typeParamList,
1924 SourceLocation IvarLBraceLoc,
1925 SourceLocation IvarRBraceLoc)
1926 : ObjCContainerDecl(ObjCCategory, DC, Id, ClassNameLoc, AtLoc),
1927 ClassInterface(IDecl), TypeParamList(nullptr),
1928 NextClassCategory(nullptr), CategoryNameLoc(CategoryNameLoc),
1929 IvarLBraceLoc(IvarLBraceLoc), IvarRBraceLoc(IvarRBraceLoc)
1930{
1931 setTypeParamList(typeParamList);
1932}
1933
1934ObjCCategoryDecl *ObjCCategoryDecl::Create(ASTContext &C, DeclContext *DC,
1935 SourceLocation AtLoc,
1936 SourceLocation ClassNameLoc,
1937 SourceLocation CategoryNameLoc,
1938 IdentifierInfo *Id,
1939 ObjCInterfaceDecl *IDecl,
1940 ObjCTypeParamList *typeParamList,
1941 SourceLocation IvarLBraceLoc,
1942 SourceLocation IvarRBraceLoc) {
1943 ObjCCategoryDecl *CatDecl =
1944 new (C, DC) ObjCCategoryDecl(DC, AtLoc, ClassNameLoc, CategoryNameLoc, Id,
1945 IDecl, typeParamList, IvarLBraceLoc,
1946 IvarRBraceLoc);
1947 if (IDecl) {
1948 // Link this category into its class's category list.
1949 CatDecl->NextClassCategory = IDecl->getCategoryListRaw();
1950 if (IDecl->hasDefinition()) {
1951 IDecl->setCategoryListRaw(CatDecl);
1952 if (ASTMutationListener *L = C.getASTMutationListener())
1953 L->AddedObjCCategoryToInterface(CatDecl, IDecl);
1954 }
1955 }
1956
1957 return CatDecl;
1958}
1959
1960ObjCCategoryDecl *ObjCCategoryDecl::CreateDeserialized(ASTContext &C,
1961 unsigned ID) {
1962 return new (C, ID) ObjCCategoryDecl(nullptr, SourceLocation(),
1963 SourceLocation(), SourceLocation(),
1964 nullptr, nullptr, nullptr);
1965}
1966
1967ObjCCategoryImplDecl *ObjCCategoryDecl::getImplementation() const {
1968 return getASTContext().getObjCImplementation(
1969 const_cast<ObjCCategoryDecl*>(this));
1970}
1971
1972void ObjCCategoryDecl::setImplementation(ObjCCategoryImplDecl *ImplD) {
1973 getASTContext().setObjCImplementation(this, ImplD);
1974}
1975
1976void ObjCCategoryDecl::setTypeParamList(ObjCTypeParamList *TPL) {
1977 TypeParamList = TPL;
1978 if (!TPL)
1979 return;
1980 // Set the declaration context of each of the type parameters.
1981 for (auto typeParam : *TypeParamList)
1982 typeParam->setDeclContext(this);
1983}
1984
1985
1986//===----------------------------------------------------------------------===//
1987// ObjCCategoryImplDecl
1988//===----------------------------------------------------------------------===//
1989
1990void ObjCCategoryImplDecl::anchor() { }
1991
1992ObjCCategoryImplDecl *
1993ObjCCategoryImplDecl::Create(ASTContext &C, DeclContext *DC,
1994 IdentifierInfo *Id,
1995 ObjCInterfaceDecl *ClassInterface,
1996 SourceLocation nameLoc,
1997 SourceLocation atStartLoc,
1998 SourceLocation CategoryNameLoc) {
1999 if (ClassInterface && ClassInterface->hasDefinition())
2000 ClassInterface = ClassInterface->getDefinition();
2001 return new (C, DC) ObjCCategoryImplDecl(DC, Id, ClassInterface, nameLoc,
2002 atStartLoc, CategoryNameLoc);
2003}
2004
2005ObjCCategoryImplDecl *ObjCCategoryImplDecl::CreateDeserialized(ASTContext &C,
2006 unsigned ID) {
2007 return new (C, ID) ObjCCategoryImplDecl(nullptr, nullptr, nullptr,
2008 SourceLocation(), SourceLocation(),
2009 SourceLocation());
2010}
2011
2012ObjCCategoryDecl *ObjCCategoryImplDecl::getCategoryDecl() const {
2013 // The class interface might be NULL if we are working with invalid code.
2014 if (const ObjCInterfaceDecl *ID = getClassInterface())
2015 return ID->FindCategoryDeclaration(getIdentifier());
2016 return nullptr;
2017}
2018
2019
2020void ObjCImplDecl::anchor() { }
2021
2022void ObjCImplDecl::addPropertyImplementation(ObjCPropertyImplDecl *property) {
2023 // FIXME: The context should be correct before we get here.
2024 property->setLexicalDeclContext(this);
2025 addDecl(property);
2026}
2027
2028void ObjCImplDecl::setClassInterface(ObjCInterfaceDecl *IFace) {
2029 ASTContext &Ctx = getASTContext();
2030
2031 if (ObjCImplementationDecl *ImplD
2032 = dyn_cast_or_null<ObjCImplementationDecl>(this)) {
2033 if (IFace)
2034 Ctx.setObjCImplementation(IFace, ImplD);
2035
2036 } else if (ObjCCategoryImplDecl *ImplD =
2037 dyn_cast_or_null<ObjCCategoryImplDecl>(this)) {
2038 if (ObjCCategoryDecl *CD = IFace->FindCategoryDeclaration(getIdentifier()))
2039 Ctx.setObjCImplementation(CD, ImplD);
2040 }
2041
2042 ClassInterface = IFace;
2043}
2044
2045/// FindPropertyImplIvarDecl - This method lookup the ivar in the list of
2046/// properties implemented in this \@implementation block and returns
2047/// the implemented property that uses it.
2048///
2049ObjCPropertyImplDecl *ObjCImplDecl::
2050FindPropertyImplIvarDecl(IdentifierInfo *ivarId) const {
2051 for (auto *PID : property_impls())
2052 if (PID->getPropertyIvarDecl() &&
2053 PID->getPropertyIvarDecl()->getIdentifier() == ivarId)
2054 return PID;
2055 return nullptr;
2056}
2057
2058/// FindPropertyImplDecl - This method looks up a previous ObjCPropertyImplDecl
2059/// added to the list of those properties \@synthesized/\@dynamic in this
2060/// category \@implementation block.
2061///
2062ObjCPropertyImplDecl *ObjCImplDecl::
2063FindPropertyImplDecl(IdentifierInfo *Id,
2064 ObjCPropertyQueryKind QueryKind) const {
2065 ObjCPropertyImplDecl *ClassPropImpl = nullptr;
2066 for (auto *PID : property_impls())
2067 // If queryKind is unknown, we return the instance property if one
2068 // exists; otherwise we return the class property.
2069 if (PID->getPropertyDecl()->getIdentifier() == Id) {
2070 if ((QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown &&
2071 !PID->getPropertyDecl()->isClassProperty()) ||
2072 (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_class &&
2073 PID->getPropertyDecl()->isClassProperty()) ||
2074 (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_instance &&
2075 !PID->getPropertyDecl()->isClassProperty()))
2076 return PID;
2077
2078 if (PID->getPropertyDecl()->isClassProperty())
2079 ClassPropImpl = PID;
2080 }
2081
2082 if (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown)
2083 // We can't find the instance property, return the class property.
2084 return ClassPropImpl;
2085
2086 return nullptr;
2087}
2088
2089raw_ostream &clang::operator<<(raw_ostream &OS,
2090 const ObjCCategoryImplDecl &CID) {
2091 OS << CID.getName();
2092 return OS;
2093}
2094
2095//===----------------------------------------------------------------------===//
2096// ObjCImplementationDecl
2097//===----------------------------------------------------------------------===//
2098
2099void ObjCImplementationDecl::anchor() { }
2100
2101ObjCImplementationDecl *
2102ObjCImplementationDecl::Create(ASTContext &C, DeclContext *DC,
2103 ObjCInterfaceDecl *ClassInterface,
2104 ObjCInterfaceDecl *SuperDecl,
2105 SourceLocation nameLoc,
2106 SourceLocation atStartLoc,
2107 SourceLocation superLoc,
2108 SourceLocation IvarLBraceLoc,
2109 SourceLocation IvarRBraceLoc) {
2110 if (ClassInterface && ClassInterface->hasDefinition())
2111 ClassInterface = ClassInterface->getDefinition();
2112 return new (C, DC) ObjCImplementationDecl(DC, ClassInterface, SuperDecl,
2113 nameLoc, atStartLoc, superLoc,
2114 IvarLBraceLoc, IvarRBraceLoc);
2115}
2116
2117ObjCImplementationDecl *
2118ObjCImplementationDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
2119 return new (C, ID) ObjCImplementationDecl(nullptr, nullptr, nullptr,
2120 SourceLocation(), SourceLocation());
2121}
2122
2123void ObjCImplementationDecl::setIvarInitializers(ASTContext &C,
2124 CXXCtorInitializer ** initializers,
2125 unsigned numInitializers) {
2126 if (numInitializers > 0) {
2127 NumIvarInitializers = numInitializers;
2128 CXXCtorInitializer **ivarInitializers =
2129 new (C) CXXCtorInitializer*[NumIvarInitializers];
2130 memcpy(ivarInitializers, initializers,
2131 numInitializers * sizeof(CXXCtorInitializer*));
2132 IvarInitializers = ivarInitializers;
2133 }
2134}
2135
2136ObjCImplementationDecl::init_const_iterator
2137ObjCImplementationDecl::init_begin() const {
2138 return IvarInitializers.get(getASTContext().getExternalSource());
2139}
2140
2141raw_ostream &clang::operator<<(raw_ostream &OS,
2142 const ObjCImplementationDecl &ID) {
2143 OS << ID.getName();
2144 return OS;
2145}
2146
2147//===----------------------------------------------------------------------===//
2148// ObjCCompatibleAliasDecl
2149//===----------------------------------------------------------------------===//
2150
2151void ObjCCompatibleAliasDecl::anchor() { }
2152
2153ObjCCompatibleAliasDecl *
2154ObjCCompatibleAliasDecl::Create(ASTContext &C, DeclContext *DC,
2155 SourceLocation L,
2156 IdentifierInfo *Id,
2157 ObjCInterfaceDecl* AliasedClass) {
2158 return new (C, DC) ObjCCompatibleAliasDecl(DC, L, Id, AliasedClass);
2159}
2160
2161ObjCCompatibleAliasDecl *
2162ObjCCompatibleAliasDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
2163 return new (C, ID) ObjCCompatibleAliasDecl(nullptr, SourceLocation(),
2164 nullptr, nullptr);
2165}
2166
2167//===----------------------------------------------------------------------===//
2168// ObjCPropertyDecl
2169//===----------------------------------------------------------------------===//
2170
2171void ObjCPropertyDecl::anchor() { }
2172
2173ObjCPropertyDecl *ObjCPropertyDecl::Create(ASTContext &C, DeclContext *DC,
2174 SourceLocation L,
2175 IdentifierInfo *Id,
2176 SourceLocation AtLoc,
2177 SourceLocation LParenLoc,
2178 QualType T,
2179 TypeSourceInfo *TSI,
2180 PropertyControl propControl) {
2181 return new (C, DC) ObjCPropertyDecl(DC, L, Id, AtLoc, LParenLoc, T, TSI,
2182 propControl);
2183}
2184
2185ObjCPropertyDecl *ObjCPropertyDecl::CreateDeserialized(ASTContext &C,
2186 unsigned ID) {
2187 return new (C, ID) ObjCPropertyDecl(nullptr, SourceLocation(), nullptr,
2188 SourceLocation(), SourceLocation(),
2189 QualType(), nullptr, None);
2190}
2191
2192QualType ObjCPropertyDecl::getUsageType(QualType objectType) const {
2193 return DeclType.substObjCMemberType(objectType, getDeclContext(),
2194 ObjCSubstitutionContext::Property);
2195}
2196
2197//===----------------------------------------------------------------------===//
2198// ObjCPropertyImplDecl
2199//===----------------------------------------------------------------------===//
2200
2201ObjCPropertyImplDecl *ObjCPropertyImplDecl::Create(ASTContext &C,
2202 DeclContext *DC,
2203 SourceLocation atLoc,
2204 SourceLocation L,
2205 ObjCPropertyDecl *property,
2206 Kind PK,
2207 ObjCIvarDecl *ivar,
2208 SourceLocation ivarLoc) {
2209 return new (C, DC) ObjCPropertyImplDecl(DC, atLoc, L, property, PK, ivar,
2210 ivarLoc);
2211}
2212
2213ObjCPropertyImplDecl *ObjCPropertyImplDecl::CreateDeserialized(ASTContext &C,
2214 unsigned ID) {
2215 return new (C, ID) ObjCPropertyImplDecl(nullptr, SourceLocation(),
2216 SourceLocation(), nullptr, Dynamic,
2217 nullptr, SourceLocation());
2218}
2219
2220SourceRange ObjCPropertyImplDecl::getSourceRange() const {
2221 SourceLocation EndLoc = getLocation();
2222 if (IvarLoc.isValid())
2223 EndLoc = IvarLoc;
2224
2225 return SourceRange(AtLoc, EndLoc);
2226}