File: | tools/clang/lib/AST/DeclObjC.cpp |
Warning: | line 2144, column 5 Null pointer passed as an argument to a 'nonnull' parameter |
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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/Decl.h" | |||
19 | #include "clang/AST/DeclBase.h" | |||
20 | #include "clang/AST/Stmt.h" | |||
21 | #include "clang/AST/Type.h" | |||
22 | #include "clang/AST/TypeLoc.h" | |||
23 | #include "clang/Basic/IdentifierTable.h" | |||
24 | #include "clang/Basic/LLVM.h" | |||
25 | #include "clang/Basic/LangOptions.h" | |||
26 | #include "clang/Basic/SourceLocation.h" | |||
27 | #include "llvm/ADT/None.h" | |||
28 | #include "llvm/ADT/SmallString.h" | |||
29 | #include "llvm/ADT/SmallVector.h" | |||
30 | #include "llvm/Support/Casting.h" | |||
31 | #include "llvm/Support/ErrorHandling.h" | |||
32 | #include "llvm/Support/raw_ostream.h" | |||
33 | #include <algorithm> | |||
34 | #include <cassert> | |||
35 | #include <cstdint> | |||
36 | #include <cstring> | |||
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 | void ObjCContainerDecl::anchor() {} | |||
69 | ||||
70 | /// getIvarDecl - This method looks up an ivar in this ContextDecl. | |||
71 | /// | |||
72 | ObjCIvarDecl * | |||
73 | ObjCContainerDecl::getIvarDecl(IdentifierInfo *Id) const { | |||
74 | lookup_result R = lookup(Id); | |||
75 | for (lookup_iterator Ivar = R.begin(), IvarEnd = R.end(); | |||
76 | Ivar != IvarEnd; ++Ivar) { | |||
77 | if (ObjCIvarDecl *ivar = dyn_cast<ObjCIvarDecl>(*Ivar)) | |||
78 | return ivar; | |||
79 | } | |||
80 | return nullptr; | |||
81 | } | |||
82 | ||||
83 | // Get the local instance/class method declared in this interface. | |||
84 | ObjCMethodDecl * | |||
85 | ObjCContainerDecl::getMethod(Selector Sel, bool isInstance, | |||
86 | bool AllowHidden) const { | |||
87 | // If this context is a hidden protocol definition, don't find any | |||
88 | // methods there. | |||
89 | if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(this)) { | |||
90 | if (const ObjCProtocolDecl *Def = Proto->getDefinition()) | |||
91 | if (Def->isHidden() && !AllowHidden) | |||
92 | return nullptr; | |||
93 | } | |||
94 | ||||
95 | // Since instance & class methods can have the same name, the loop below | |||
96 | // ensures we get the correct method. | |||
97 | // | |||
98 | // @interface Whatever | |||
99 | // - (int) class_method; | |||
100 | // + (float) class_method; | |||
101 | // @end | |||
102 | lookup_result R = lookup(Sel); | |||
103 | for (lookup_iterator Meth = R.begin(), MethEnd = R.end(); | |||
104 | Meth != MethEnd; ++Meth) { | |||
105 | ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(*Meth); | |||
106 | if (MD && MD->isInstanceMethod() == isInstance) | |||
107 | return MD; | |||
108 | } | |||
109 | return nullptr; | |||
110 | } | |||
111 | ||||
112 | /// \brief This routine returns 'true' if a user declared setter method was | |||
113 | /// found in the class, its protocols, its super classes or categories. | |||
114 | /// It also returns 'true' if one of its categories has declared a 'readwrite' | |||
115 | /// property. This is because, user must provide a setter method for the | |||
116 | /// category's 'readwrite' property. | |||
117 | bool ObjCContainerDecl::HasUserDeclaredSetterMethod( | |||
118 | const ObjCPropertyDecl *Property) const { | |||
119 | Selector Sel = Property->getSetterName(); | |||
120 | lookup_result R = lookup(Sel); | |||
121 | for (lookup_iterator Meth = R.begin(), MethEnd = R.end(); | |||
122 | Meth != MethEnd; ++Meth) { | |||
123 | ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(*Meth); | |||
124 | if (MD && MD->isInstanceMethod() && !MD->isImplicit()) | |||
125 | return true; | |||
126 | } | |||
127 | ||||
128 | if (const ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(this)) { | |||
129 | // Also look into categories, including class extensions, looking | |||
130 | // for a user declared instance method. | |||
131 | for (const auto *Cat : ID->visible_categories()) { | |||
132 | if (ObjCMethodDecl *MD = Cat->getInstanceMethod(Sel)) | |||
133 | if (!MD->isImplicit()) | |||
134 | return true; | |||
135 | if (Cat->IsClassExtension()) | |||
136 | continue; | |||
137 | // Also search through the categories looking for a 'readwrite' | |||
138 | // declaration of this property. If one found, presumably a setter will | |||
139 | // be provided (properties declared in categories will not get | |||
140 | // auto-synthesized). | |||
141 | for (const auto *P : Cat->properties()) | |||
142 | if (P->getIdentifier() == Property->getIdentifier()) { | |||
143 | if (P->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_readwrite) | |||
144 | return true; | |||
145 | break; | |||
146 | } | |||
147 | } | |||
148 | ||||
149 | // Also look into protocols, for a user declared instance method. | |||
150 | for (const auto *Proto : ID->all_referenced_protocols()) | |||
151 | if (Proto->HasUserDeclaredSetterMethod(Property)) | |||
152 | return true; | |||
153 | ||||
154 | // And in its super class. | |||
155 | ObjCInterfaceDecl *OSC = ID->getSuperClass(); | |||
156 | while (OSC) { | |||
157 | if (OSC->HasUserDeclaredSetterMethod(Property)) | |||
158 | return true; | |||
159 | OSC = OSC->getSuperClass(); | |||
160 | } | |||
161 | } | |||
162 | if (const ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(this)) | |||
163 | for (const auto *PI : PD->protocols()) | |||
164 | if (PI->HasUserDeclaredSetterMethod(Property)) | |||
165 | return true; | |||
166 | return false; | |||
167 | } | |||
168 | ||||
169 | ObjCPropertyDecl * | |||
170 | ObjCPropertyDecl::findPropertyDecl(const DeclContext *DC, | |||
171 | const IdentifierInfo *propertyID, | |||
172 | ObjCPropertyQueryKind queryKind) { | |||
173 | // If this context is a hidden protocol definition, don't find any | |||
174 | // property. | |||
175 | if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(DC)) { | |||
176 | if (const ObjCProtocolDecl *Def = Proto->getDefinition()) | |||
177 | if (Def->isHidden()) | |||
178 | return nullptr; | |||
179 | } | |||
180 | ||||
181 | // If context is class, then lookup property in its visible extensions. | |||
182 | // This comes before property is looked up in primary class. | |||
183 | if (auto *IDecl = dyn_cast<ObjCInterfaceDecl>(DC)) { | |||
184 | for (const auto *Ext : IDecl->visible_extensions()) | |||
185 | if (ObjCPropertyDecl *PD = ObjCPropertyDecl::findPropertyDecl(Ext, | |||
186 | propertyID, | |||
187 | queryKind)) | |||
188 | return PD; | |||
189 | } | |||
190 | ||||
191 | DeclContext::lookup_result R = DC->lookup(propertyID); | |||
192 | ObjCPropertyDecl *classProp = nullptr; | |||
193 | for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E; | |||
194 | ++I) | |||
195 | if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(*I)) { | |||
196 | // If queryKind is unknown, we return the instance property if one | |||
197 | // exists; otherwise we return the class property. | |||
198 | if ((queryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown && | |||
199 | !PD->isClassProperty()) || | |||
200 | (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_class && | |||
201 | PD->isClassProperty()) || | |||
202 | (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_instance && | |||
203 | !PD->isClassProperty())) | |||
204 | return PD; | |||
205 | ||||
206 | if (PD->isClassProperty()) | |||
207 | classProp = PD; | |||
208 | } | |||
209 | ||||
210 | if (queryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown) | |||
211 | // We can't find the instance property, return the class property. | |||
212 | return classProp; | |||
213 | ||||
214 | return nullptr; | |||
215 | } | |||
216 | ||||
217 | IdentifierInfo * | |||
218 | ObjCPropertyDecl::getDefaultSynthIvarName(ASTContext &Ctx) const { | |||
219 | SmallString<128> ivarName; | |||
220 | { | |||
221 | llvm::raw_svector_ostream os(ivarName); | |||
222 | os << '_' << getIdentifier()->getName(); | |||
223 | } | |||
224 | return &Ctx.Idents.get(ivarName.str()); | |||
225 | } | |||
226 | ||||
227 | /// FindPropertyDeclaration - Finds declaration of the property given its name | |||
228 | /// in 'PropertyId' and returns it. It returns 0, if not found. | |||
229 | ObjCPropertyDecl *ObjCContainerDecl::FindPropertyDeclaration( | |||
230 | const IdentifierInfo *PropertyId, | |||
231 | ObjCPropertyQueryKind QueryKind) const { | |||
232 | // Don't find properties within hidden protocol definitions. | |||
233 | if (const ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(this)) { | |||
234 | if (const ObjCProtocolDecl *Def = Proto->getDefinition()) | |||
235 | if (Def->isHidden()) | |||
236 | return nullptr; | |||
237 | } | |||
238 | ||||
239 | // Search the extensions of a class first; they override what's in | |||
240 | // the class itself. | |||
241 | if (const auto *ClassDecl = dyn_cast<ObjCInterfaceDecl>(this)) { | |||
242 | for (const auto *Ext : ClassDecl->visible_extensions()) { | |||
243 | if (auto *P = Ext->FindPropertyDeclaration(PropertyId, QueryKind)) | |||
244 | return P; | |||
245 | } | |||
246 | } | |||
247 | ||||
248 | if (ObjCPropertyDecl *PD = | |||
249 | ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(this), PropertyId, | |||
250 | QueryKind)) | |||
251 | return PD; | |||
252 | ||||
253 | switch (getKind()) { | |||
254 | default: | |||
255 | break; | |||
256 | case Decl::ObjCProtocol: { | |||
257 | const ObjCProtocolDecl *PID = cast<ObjCProtocolDecl>(this); | |||
258 | for (const auto *I : PID->protocols()) | |||
259 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
260 | QueryKind)) | |||
261 | return P; | |||
262 | break; | |||
263 | } | |||
264 | case Decl::ObjCInterface: { | |||
265 | const ObjCInterfaceDecl *OID = cast<ObjCInterfaceDecl>(this); | |||
266 | // Look through categories (but not extensions; they were handled above). | |||
267 | for (const auto *Cat : OID->visible_categories()) { | |||
268 | if (!Cat->IsClassExtension()) | |||
269 | if (ObjCPropertyDecl *P = Cat->FindPropertyDeclaration( | |||
270 | PropertyId, QueryKind)) | |||
271 | return P; | |||
272 | } | |||
273 | ||||
274 | // Look through protocols. | |||
275 | for (const auto *I : OID->all_referenced_protocols()) | |||
276 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
277 | QueryKind)) | |||
278 | return P; | |||
279 | ||||
280 | // Finally, check the super class. | |||
281 | if (const ObjCInterfaceDecl *superClass = OID->getSuperClass()) | |||
282 | return superClass->FindPropertyDeclaration(PropertyId, QueryKind); | |||
283 | break; | |||
284 | } | |||
285 | case Decl::ObjCCategory: { | |||
286 | const ObjCCategoryDecl *OCD = cast<ObjCCategoryDecl>(this); | |||
287 | // Look through protocols. | |||
288 | if (!OCD->IsClassExtension()) | |||
289 | for (const auto *I : OCD->protocols()) | |||
290 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
291 | QueryKind)) | |||
292 | return P; | |||
293 | break; | |||
294 | } | |||
295 | } | |||
296 | return nullptr; | |||
297 | } | |||
298 | ||||
299 | void ObjCInterfaceDecl::anchor() {} | |||
300 | ||||
301 | ObjCTypeParamList *ObjCInterfaceDecl::getTypeParamList() const { | |||
302 | // If this particular declaration has a type parameter list, return it. | |||
303 | if (ObjCTypeParamList *written = getTypeParamListAsWritten()) | |||
304 | return written; | |||
305 | ||||
306 | // If there is a definition, return its type parameter list. | |||
307 | if (const ObjCInterfaceDecl *def = getDefinition()) | |||
308 | return def->getTypeParamListAsWritten(); | |||
309 | ||||
310 | // Otherwise, look at previous declarations to determine whether any | |||
311 | // of them has a type parameter list, skipping over those | |||
312 | // declarations that do not. | |||
313 | for (auto decl = getMostRecentDecl(); decl; decl = decl->getPreviousDecl()) { | |||
314 | if (ObjCTypeParamList *written = decl->getTypeParamListAsWritten()) | |||
315 | return written; | |||
316 | } | |||
317 | ||||
318 | return nullptr; | |||
319 | } | |||
320 | ||||
321 | void ObjCInterfaceDecl::setTypeParamList(ObjCTypeParamList *TPL) { | |||
322 | TypeParamList = TPL; | |||
323 | if (!TPL) | |||
324 | return; | |||
325 | // Set the declaration context of each of the type parameters. | |||
326 | for (auto typeParam : *TypeParamList) | |||
327 | typeParam->setDeclContext(this); | |||
328 | } | |||
329 | ||||
330 | ObjCInterfaceDecl *ObjCInterfaceDecl::getSuperClass() const { | |||
331 | // FIXME: Should make sure no callers ever do this. | |||
332 | if (!hasDefinition()) | |||
333 | return nullptr; | |||
334 | ||||
335 | if (data().ExternallyCompleted) | |||
336 | LoadExternalDefinition(); | |||
337 | ||||
338 | if (const ObjCObjectType *superType = getSuperClassType()) { | |||
339 | if (ObjCInterfaceDecl *superDecl = superType->getInterface()) { | |||
340 | if (ObjCInterfaceDecl *superDef = superDecl->getDefinition()) | |||
341 | return superDef; | |||
342 | ||||
343 | return superDecl; | |||
344 | } | |||
345 | } | |||
346 | ||||
347 | return nullptr; | |||
348 | } | |||
349 | ||||
350 | SourceLocation ObjCInterfaceDecl::getSuperClassLoc() const { | |||
351 | if (TypeSourceInfo *superTInfo = getSuperClassTInfo()) | |||
352 | return superTInfo->getTypeLoc().getLocStart(); | |||
353 | ||||
354 | return SourceLocation(); | |||
355 | } | |||
356 | ||||
357 | /// FindPropertyVisibleInPrimaryClass - Finds declaration of the property | |||
358 | /// with name 'PropertyId' in the primary class; including those in protocols | |||
359 | /// (direct or indirect) used by the primary class. | |||
360 | ObjCPropertyDecl * | |||
361 | ObjCInterfaceDecl::FindPropertyVisibleInPrimaryClass( | |||
362 | IdentifierInfo *PropertyId, | |||
363 | ObjCPropertyQueryKind QueryKind) const { | |||
364 | // FIXME: Should make sure no callers ever do this. | |||
365 | if (!hasDefinition()) | |||
366 | return nullptr; | |||
367 | ||||
368 | if (data().ExternallyCompleted) | |||
369 | LoadExternalDefinition(); | |||
370 | ||||
371 | if (ObjCPropertyDecl *PD = | |||
372 | ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(this), PropertyId, | |||
373 | QueryKind)) | |||
374 | return PD; | |||
375 | ||||
376 | // Look through protocols. | |||
377 | for (const auto *I : all_referenced_protocols()) | |||
378 | if (ObjCPropertyDecl *P = I->FindPropertyDeclaration(PropertyId, | |||
379 | QueryKind)) | |||
380 | return P; | |||
381 | ||||
382 | return nullptr; | |||
383 | } | |||
384 | ||||
385 | void ObjCInterfaceDecl::collectPropertiesToImplement(PropertyMap &PM, | |||
386 | PropertyDeclOrder &PO) const { | |||
387 | for (auto *Prop : properties()) { | |||
388 | PM[std::make_pair(Prop->getIdentifier(), Prop->isClassProperty())] = Prop; | |||
389 | PO.push_back(Prop); | |||
390 | } | |||
391 | for (const auto *Ext : known_extensions()) { | |||
392 | const ObjCCategoryDecl *ClassExt = Ext; | |||
393 | for (auto *Prop : ClassExt->properties()) { | |||
394 | PM[std::make_pair(Prop->getIdentifier(), Prop->isClassProperty())] = Prop; | |||
395 | PO.push_back(Prop); | |||
396 | } | |||
397 | } | |||
398 | for (const auto *PI : all_referenced_protocols()) | |||
399 | PI->collectPropertiesToImplement(PM, PO); | |||
400 | // Note, the properties declared only in class extensions are still copied | |||
401 | // into the main @interface's property list, and therefore we don't | |||
402 | // explicitly, have to search class extension properties. | |||
403 | } | |||
404 | ||||
405 | bool ObjCInterfaceDecl::isArcWeakrefUnavailable() const { | |||
406 | const ObjCInterfaceDecl *Class = this; | |||
407 | while (Class) { | |||
408 | if (Class->hasAttr<ArcWeakrefUnavailableAttr>()) | |||
409 | return true; | |||
410 | Class = Class->getSuperClass(); | |||
411 | } | |||
412 | return false; | |||
413 | } | |||
414 | ||||
415 | const ObjCInterfaceDecl *ObjCInterfaceDecl::isObjCRequiresPropertyDefs() const { | |||
416 | const ObjCInterfaceDecl *Class = this; | |||
417 | while (Class) { | |||
418 | if (Class->hasAttr<ObjCRequiresPropertyDefsAttr>()) | |||
419 | return Class; | |||
420 | Class = Class->getSuperClass(); | |||
421 | } | |||
422 | return nullptr; | |||
423 | } | |||
424 | ||||
425 | void ObjCInterfaceDecl::mergeClassExtensionProtocolList( | |||
426 | ObjCProtocolDecl *const* ExtList, unsigned ExtNum, | |||
427 | ASTContext &C) { | |||
428 | if (data().ExternallyCompleted) | |||
429 | LoadExternalDefinition(); | |||
430 | ||||
431 | if (data().AllReferencedProtocols.empty() && | |||
432 | data().ReferencedProtocols.empty()) { | |||
433 | data().AllReferencedProtocols.set(ExtList, ExtNum, C); | |||
434 | return; | |||
435 | } | |||
436 | ||||
437 | // Check for duplicate protocol in class's protocol list. | |||
438 | // This is O(n*m). But it is extremely rare and number of protocols in | |||
439 | // class or its extension are very few. | |||
440 | SmallVector<ObjCProtocolDecl*, 8> ProtocolRefs; | |||
441 | for (unsigned i = 0; i < ExtNum; i++) { | |||
442 | bool protocolExists = false; | |||
443 | ObjCProtocolDecl *ProtoInExtension = ExtList[i]; | |||
444 | for (auto *Proto : all_referenced_protocols()) { | |||
445 | if (C.ProtocolCompatibleWithProtocol(ProtoInExtension, Proto)) { | |||
446 | protocolExists = true; | |||
447 | break; | |||
448 | } | |||
449 | } | |||
450 | // Do we want to warn on a protocol in extension class which | |||
451 | // already exist in the class? Probably not. | |||
452 | if (!protocolExists) | |||
453 | ProtocolRefs.push_back(ProtoInExtension); | |||
454 | } | |||
455 | ||||
456 | if (ProtocolRefs.empty()) | |||
457 | return; | |||
458 | ||||
459 | // Merge ProtocolRefs into class's protocol list; | |||
460 | ProtocolRefs.append(all_referenced_protocol_begin(), | |||
461 | all_referenced_protocol_end()); | |||
462 | ||||
463 | data().AllReferencedProtocols.set(ProtocolRefs.data(), ProtocolRefs.size(),C); | |||
464 | } | |||
465 | ||||
466 | const ObjCInterfaceDecl * | |||
467 | ObjCInterfaceDecl::findInterfaceWithDesignatedInitializers() const { | |||
468 | const ObjCInterfaceDecl *IFace = this; | |||
469 | while (IFace) { | |||
470 | if (IFace->hasDesignatedInitializers()) | |||
471 | return IFace; | |||
472 | if (!IFace->inheritsDesignatedInitializers()) | |||
473 | break; | |||
474 | IFace = IFace->getSuperClass(); | |||
475 | } | |||
476 | return nullptr; | |||
477 | } | |||
478 | ||||
479 | static bool isIntroducingInitializers(const ObjCInterfaceDecl *D) { | |||
480 | for (const auto *MD : D->instance_methods()) { | |||
481 | if (MD->getMethodFamily() == OMF_init && !MD->isOverriding()) | |||
482 | return true; | |||
483 | } | |||
484 | for (const auto *Ext : D->visible_extensions()) { | |||
485 | for (const auto *MD : Ext->instance_methods()) { | |||
486 | if (MD->getMethodFamily() == OMF_init && !MD->isOverriding()) | |||
487 | return true; | |||
488 | } | |||
489 | } | |||
490 | if (const auto *ImplD = D->getImplementation()) { | |||
491 | for (const auto *MD : ImplD->instance_methods()) { | |||
492 | if (MD->getMethodFamily() == OMF_init && !MD->isOverriding()) | |||
493 | return true; | |||
494 | } | |||
495 | } | |||
496 | return false; | |||
497 | } | |||
498 | ||||
499 | bool ObjCInterfaceDecl::inheritsDesignatedInitializers() const { | |||
500 | switch (data().InheritedDesignatedInitializers) { | |||
501 | case DefinitionData::IDI_Inherited: | |||
502 | return true; | |||
503 | case DefinitionData::IDI_NotInherited: | |||
504 | return false; | |||
505 | case DefinitionData::IDI_Unknown: | |||
506 | // If the class introduced initializers we conservatively assume that we | |||
507 | // don't know if any of them is a designated initializer to avoid possible | |||
508 | // misleading warnings. | |||
509 | if (isIntroducingInitializers(this)) { | |||
510 | data().InheritedDesignatedInitializers = DefinitionData::IDI_NotInherited; | |||
511 | } else { | |||
512 | if (auto SuperD = getSuperClass()) { | |||
513 | data().InheritedDesignatedInitializers = | |||
514 | SuperD->declaresOrInheritsDesignatedInitializers() ? | |||
515 | DefinitionData::IDI_Inherited : | |||
516 | DefinitionData::IDI_NotInherited; | |||
517 | } else { | |||
518 | data().InheritedDesignatedInitializers = | |||
519 | DefinitionData::IDI_NotInherited; | |||
520 | } | |||
521 | } | |||
522 | assert(data().InheritedDesignatedInitializers(static_cast <bool> (data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown) ? void (0) : __assert_fail ( "data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 523, __extension__ __PRETTY_FUNCTION__)) | |||
523 | != DefinitionData::IDI_Unknown)(static_cast <bool> (data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown) ? void (0) : __assert_fail ( "data().InheritedDesignatedInitializers != DefinitionData::IDI_Unknown" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 523, __extension__ __PRETTY_FUNCTION__)); | |||
524 | return data().InheritedDesignatedInitializers == | |||
525 | DefinitionData::IDI_Inherited; | |||
526 | } | |||
527 | ||||
528 | llvm_unreachable("unexpected InheritedDesignatedInitializers value")::llvm::llvm_unreachable_internal("unexpected InheritedDesignatedInitializers value" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 528); | |||
529 | } | |||
530 | ||||
531 | void ObjCInterfaceDecl::getDesignatedInitializers( | |||
532 | llvm::SmallVectorImpl<const ObjCMethodDecl *> &Methods) const { | |||
533 | // Check for a complete definition and recover if not so. | |||
534 | if (!isThisDeclarationADefinition()) | |||
535 | return; | |||
536 | if (data().ExternallyCompleted) | |||
537 | LoadExternalDefinition(); | |||
538 | ||||
539 | const ObjCInterfaceDecl *IFace= findInterfaceWithDesignatedInitializers(); | |||
540 | if (!IFace) | |||
541 | return; | |||
542 | ||||
543 | for (const auto *MD : IFace->instance_methods()) | |||
544 | if (MD->isThisDeclarationADesignatedInitializer()) | |||
545 | Methods.push_back(MD); | |||
546 | for (const auto *Ext : IFace->visible_extensions()) { | |||
547 | for (const auto *MD : Ext->instance_methods()) | |||
548 | if (MD->isThisDeclarationADesignatedInitializer()) | |||
549 | Methods.push_back(MD); | |||
550 | } | |||
551 | } | |||
552 | ||||
553 | bool ObjCInterfaceDecl::isDesignatedInitializer(Selector Sel, | |||
554 | const ObjCMethodDecl **InitMethod) const { | |||
555 | bool HasCompleteDef = isThisDeclarationADefinition(); | |||
556 | // During deserialization the data record for the ObjCInterfaceDecl could | |||
557 | // be made invariant by reusing the canonical decl. Take this into account | |||
558 | // when checking for the complete definition. | |||
559 | if (!HasCompleteDef && getCanonicalDecl()->hasDefinition() && | |||
560 | getCanonicalDecl()->getDefinition() == getDefinition()) | |||
561 | HasCompleteDef = true; | |||
562 | ||||
563 | // Check for a complete definition and recover if not so. | |||
564 | if (!HasCompleteDef) | |||
565 | return false; | |||
566 | ||||
567 | if (data().ExternallyCompleted) | |||
568 | LoadExternalDefinition(); | |||
569 | ||||
570 | const ObjCInterfaceDecl *IFace= findInterfaceWithDesignatedInitializers(); | |||
571 | if (!IFace) | |||
572 | return false; | |||
573 | ||||
574 | if (const ObjCMethodDecl *MD = IFace->getInstanceMethod(Sel)) { | |||
575 | if (MD->isThisDeclarationADesignatedInitializer()) { | |||
576 | if (InitMethod) | |||
577 | *InitMethod = MD; | |||
578 | return true; | |||
579 | } | |||
580 | } | |||
581 | for (const auto *Ext : IFace->visible_extensions()) { | |||
582 | if (const ObjCMethodDecl *MD = Ext->getInstanceMethod(Sel)) { | |||
583 | if (MD->isThisDeclarationADesignatedInitializer()) { | |||
584 | if (InitMethod) | |||
585 | *InitMethod = MD; | |||
586 | return true; | |||
587 | } | |||
588 | } | |||
589 | } | |||
590 | return false; | |||
591 | } | |||
592 | ||||
593 | void ObjCInterfaceDecl::allocateDefinitionData() { | |||
594 | 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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 594, __extension__ __PRETTY_FUNCTION__)); | |||
595 | Data.setPointer(new (getASTContext()) DefinitionData()); | |||
596 | Data.getPointer()->Definition = this; | |||
597 | ||||
598 | // Make the type point at the definition, now that we have one. | |||
599 | if (TypeForDecl) | |||
600 | cast<ObjCInterfaceType>(TypeForDecl)->Decl = this; | |||
601 | } | |||
602 | ||||
603 | void ObjCInterfaceDecl::startDefinition() { | |||
604 | allocateDefinitionData(); | |||
605 | ||||
606 | // Update all of the declarations with a pointer to the definition. | |||
607 | for (auto RD : redecls()) { | |||
608 | if (RD != this) | |||
609 | RD->Data = Data; | |||
610 | } | |||
611 | } | |||
612 | ||||
613 | ObjCIvarDecl *ObjCInterfaceDecl::lookupInstanceVariable(IdentifierInfo *ID, | |||
614 | ObjCInterfaceDecl *&clsDeclared) { | |||
615 | // FIXME: Should make sure no callers ever do this. | |||
616 | if (!hasDefinition()) | |||
617 | return nullptr; | |||
618 | ||||
619 | if (data().ExternallyCompleted) | |||
620 | LoadExternalDefinition(); | |||
621 | ||||
622 | ObjCInterfaceDecl* ClassDecl = this; | |||
623 | while (ClassDecl != nullptr) { | |||
624 | if (ObjCIvarDecl *I = ClassDecl->getIvarDecl(ID)) { | |||
625 | clsDeclared = ClassDecl; | |||
626 | return I; | |||
627 | } | |||
628 | ||||
629 | for (const auto *Ext : ClassDecl->visible_extensions()) { | |||
630 | if (ObjCIvarDecl *I = Ext->getIvarDecl(ID)) { | |||
631 | clsDeclared = ClassDecl; | |||
632 | return I; | |||
633 | } | |||
634 | } | |||
635 | ||||
636 | ClassDecl = ClassDecl->getSuperClass(); | |||
637 | } | |||
638 | return nullptr; | |||
639 | } | |||
640 | ||||
641 | /// lookupInheritedClass - This method returns ObjCInterfaceDecl * of the super | |||
642 | /// class whose name is passed as argument. If it is not one of the super classes | |||
643 | /// the it returns NULL. | |||
644 | ObjCInterfaceDecl *ObjCInterfaceDecl::lookupInheritedClass( | |||
645 | const IdentifierInfo*ICName) { | |||
646 | // FIXME: Should make sure no callers ever do this. | |||
647 | if (!hasDefinition()) | |||
648 | return nullptr; | |||
649 | ||||
650 | if (data().ExternallyCompleted) | |||
651 | LoadExternalDefinition(); | |||
652 | ||||
653 | ObjCInterfaceDecl* ClassDecl = this; | |||
654 | while (ClassDecl != nullptr) { | |||
655 | if (ClassDecl->getIdentifier() == ICName) | |||
656 | return ClassDecl; | |||
657 | ClassDecl = ClassDecl->getSuperClass(); | |||
658 | } | |||
659 | return nullptr; | |||
660 | } | |||
661 | ||||
662 | ObjCProtocolDecl * | |||
663 | ObjCInterfaceDecl::lookupNestedProtocol(IdentifierInfo *Name) { | |||
664 | for (auto *P : all_referenced_protocols()) | |||
665 | if (P->lookupProtocolNamed(Name)) | |||
666 | return P; | |||
667 | ObjCInterfaceDecl *SuperClass = getSuperClass(); | |||
668 | return SuperClass ? SuperClass->lookupNestedProtocol(Name) : nullptr; | |||
669 | } | |||
670 | ||||
671 | /// lookupMethod - This method returns an instance/class method by looking in | |||
672 | /// the class, its categories, and its super classes (using a linear search). | |||
673 | /// When argument category "C" is specified, any implicit method found | |||
674 | /// in this category is ignored. | |||
675 | ObjCMethodDecl *ObjCInterfaceDecl::lookupMethod(Selector Sel, | |||
676 | bool isInstance, | |||
677 | bool shallowCategoryLookup, | |||
678 | bool followSuper, | |||
679 | const ObjCCategoryDecl *C) const | |||
680 | { | |||
681 | // FIXME: Should make sure no callers ever do this. | |||
682 | if (!hasDefinition()) | |||
683 | return nullptr; | |||
684 | ||||
685 | const ObjCInterfaceDecl* ClassDecl = this; | |||
686 | ObjCMethodDecl *MethodDecl = nullptr; | |||
687 | ||||
688 | if (data().ExternallyCompleted) | |||
689 | LoadExternalDefinition(); | |||
690 | ||||
691 | while (ClassDecl) { | |||
692 | // 1. Look through primary class. | |||
693 | if ((MethodDecl = ClassDecl->getMethod(Sel, isInstance))) | |||
694 | return MethodDecl; | |||
695 | ||||
696 | // 2. Didn't find one yet - now look through categories. | |||
697 | for (const auto *Cat : ClassDecl->visible_categories()) | |||
698 | if ((MethodDecl = Cat->getMethod(Sel, isInstance))) | |||
699 | if (C != Cat || !MethodDecl->isImplicit()) | |||
700 | return MethodDecl; | |||
701 | ||||
702 | // 3. Didn't find one yet - look through primary class's protocols. | |||
703 | for (const auto *I : ClassDecl->protocols()) | |||
704 | if ((MethodDecl = I->lookupMethod(Sel, isInstance))) | |||
705 | return MethodDecl; | |||
706 | ||||
707 | // 4. Didn't find one yet - now look through categories' protocols | |||
708 | if (!shallowCategoryLookup) | |||
709 | for (const auto *Cat : ClassDecl->visible_categories()) { | |||
710 | // Didn't find one yet - look through protocols. | |||
711 | const ObjCList<ObjCProtocolDecl> &Protocols = | |||
712 | Cat->getReferencedProtocols(); | |||
713 | for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(), | |||
714 | E = Protocols.end(); I != E; ++I) | |||
715 | if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance))) | |||
716 | if (C != Cat || !MethodDecl->isImplicit()) | |||
717 | return MethodDecl; | |||
718 | } | |||
719 | ||||
720 | ||||
721 | if (!followSuper) | |||
722 | return nullptr; | |||
723 | ||||
724 | // 5. Get to the super class (if any). | |||
725 | ClassDecl = ClassDecl->getSuperClass(); | |||
726 | } | |||
727 | return nullptr; | |||
728 | } | |||
729 | ||||
730 | // Will search "local" class/category implementations for a method decl. | |||
731 | // If failed, then we search in class's root for an instance method. | |||
732 | // Returns 0 if no method is found. | |||
733 | ObjCMethodDecl *ObjCInterfaceDecl::lookupPrivateMethod( | |||
734 | const Selector &Sel, | |||
735 | bool Instance) const { | |||
736 | // FIXME: Should make sure no callers ever do this. | |||
737 | if (!hasDefinition()) | |||
738 | return nullptr; | |||
739 | ||||
740 | if (data().ExternallyCompleted) | |||
741 | LoadExternalDefinition(); | |||
742 | ||||
743 | ObjCMethodDecl *Method = nullptr; | |||
744 | if (ObjCImplementationDecl *ImpDecl = getImplementation()) | |||
745 | Method = Instance ? ImpDecl->getInstanceMethod(Sel) | |||
746 | : ImpDecl->getClassMethod(Sel); | |||
747 | ||||
748 | // Look through local category implementations associated with the class. | |||
749 | if (!Method) | |||
750 | Method = getCategoryMethod(Sel, Instance); | |||
751 | ||||
752 | // Before we give up, check if the selector is an instance method. | |||
753 | // But only in the root. This matches gcc's behavior and what the | |||
754 | // runtime expects. | |||
755 | if (!Instance && !Method && !getSuperClass()) { | |||
756 | Method = lookupInstanceMethod(Sel); | |||
757 | // Look through local category implementations associated | |||
758 | // with the root class. | |||
759 | if (!Method) | |||
760 | Method = lookupPrivateMethod(Sel, true); | |||
761 | } | |||
762 | ||||
763 | if (!Method && getSuperClass()) | |||
764 | return getSuperClass()->lookupPrivateMethod(Sel, Instance); | |||
765 | return Method; | |||
766 | } | |||
767 | ||||
768 | //===----------------------------------------------------------------------===// | |||
769 | // ObjCMethodDecl | |||
770 | //===----------------------------------------------------------------------===// | |||
771 | ||||
772 | ObjCMethodDecl *ObjCMethodDecl::Create( | |||
773 | ASTContext &C, SourceLocation beginLoc, SourceLocation endLoc, | |||
774 | Selector SelInfo, QualType T, TypeSourceInfo *ReturnTInfo, | |||
775 | DeclContext *contextDecl, bool isInstance, bool isVariadic, | |||
776 | bool isPropertyAccessor, bool isImplicitlyDeclared, bool isDefined, | |||
777 | ImplementationControl impControl, bool HasRelatedResultType) { | |||
778 | return new (C, contextDecl) ObjCMethodDecl( | |||
779 | beginLoc, endLoc, SelInfo, T, ReturnTInfo, contextDecl, isInstance, | |||
780 | isVariadic, isPropertyAccessor, isImplicitlyDeclared, isDefined, | |||
781 | impControl, HasRelatedResultType); | |||
782 | } | |||
783 | ||||
784 | ObjCMethodDecl *ObjCMethodDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
785 | return new (C, ID) ObjCMethodDecl(SourceLocation(), SourceLocation(), | |||
786 | Selector(), QualType(), nullptr, nullptr); | |||
787 | } | |||
788 | ||||
789 | bool ObjCMethodDecl::isThisDeclarationADesignatedInitializer() const { | |||
790 | return getMethodFamily() == OMF_init && | |||
791 | hasAttr<ObjCDesignatedInitializerAttr>(); | |||
792 | } | |||
793 | ||||
794 | bool ObjCMethodDecl::isDesignatedInitializerForTheInterface( | |||
795 | const ObjCMethodDecl **InitMethod) const { | |||
796 | if (getMethodFamily() != OMF_init) | |||
797 | return false; | |||
798 | const DeclContext *DC = getDeclContext(); | |||
799 | if (isa<ObjCProtocolDecl>(DC)) | |||
800 | return false; | |||
801 | if (const ObjCInterfaceDecl *ID = getClassInterface()) | |||
802 | return ID->isDesignatedInitializer(getSelector(), InitMethod); | |||
803 | return false; | |||
804 | } | |||
805 | ||||
806 | Stmt *ObjCMethodDecl::getBody() const { | |||
807 | return Body.get(getASTContext().getExternalSource()); | |||
808 | } | |||
809 | ||||
810 | void ObjCMethodDecl::setAsRedeclaration(const ObjCMethodDecl *PrevMethod) { | |||
811 | assert(PrevMethod)(static_cast <bool> (PrevMethod) ? void (0) : __assert_fail ("PrevMethod", "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 811, __extension__ __PRETTY_FUNCTION__)); | |||
812 | getASTContext().setObjCMethodRedeclaration(PrevMethod, this); | |||
813 | IsRedeclaration = true; | |||
814 | PrevMethod->HasRedeclaration = true; | |||
815 | } | |||
816 | ||||
817 | void ObjCMethodDecl::setParamsAndSelLocs(ASTContext &C, | |||
818 | ArrayRef<ParmVarDecl*> Params, | |||
819 | ArrayRef<SourceLocation> SelLocs) { | |||
820 | ParamsAndSelLocs = nullptr; | |||
821 | NumParams = Params.size(); | |||
822 | if (Params.empty() && SelLocs.empty()) | |||
823 | return; | |||
824 | ||||
825 | static_assert(alignof(ParmVarDecl *) >= alignof(SourceLocation), | |||
826 | "Alignment not sufficient for SourceLocation"); | |||
827 | ||||
828 | unsigned Size = sizeof(ParmVarDecl *) * NumParams + | |||
829 | sizeof(SourceLocation) * SelLocs.size(); | |||
830 | ParamsAndSelLocs = C.Allocate(Size); | |||
831 | std::copy(Params.begin(), Params.end(), getParams()); | |||
832 | std::copy(SelLocs.begin(), SelLocs.end(), getStoredSelLocs()); | |||
833 | } | |||
834 | ||||
835 | void ObjCMethodDecl::getSelectorLocs( | |||
836 | SmallVectorImpl<SourceLocation> &SelLocs) const { | |||
837 | for (unsigned i = 0, e = getNumSelectorLocs(); i != e; ++i) | |||
838 | SelLocs.push_back(getSelectorLoc(i)); | |||
839 | } | |||
840 | ||||
841 | void ObjCMethodDecl::setMethodParams(ASTContext &C, | |||
842 | ArrayRef<ParmVarDecl*> Params, | |||
843 | ArrayRef<SourceLocation> SelLocs) { | |||
844 | 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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 845, __extension__ __PRETTY_FUNCTION__)) | |||
845 | "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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 845, __extension__ __PRETTY_FUNCTION__)); | |||
846 | if (isImplicit()) | |||
847 | return setParamsAndSelLocs(C, Params, llvm::None); | |||
848 | ||||
849 | SelLocsKind = hasStandardSelectorLocs(getSelector(), SelLocs, Params, | |||
850 | DeclEndLoc); | |||
851 | if (SelLocsKind != SelLoc_NonStandard) | |||
852 | return setParamsAndSelLocs(C, Params, llvm::None); | |||
853 | ||||
854 | setParamsAndSelLocs(C, Params, SelLocs); | |||
855 | } | |||
856 | ||||
857 | /// \brief A definition will return its interface declaration. | |||
858 | /// An interface declaration will return its definition. | |||
859 | /// Otherwise it will return itself. | |||
860 | ObjCMethodDecl *ObjCMethodDecl::getNextRedeclarationImpl() { | |||
861 | ASTContext &Ctx = getASTContext(); | |||
862 | ObjCMethodDecl *Redecl = nullptr; | |||
863 | if (HasRedeclaration) | |||
864 | Redecl = const_cast<ObjCMethodDecl*>(Ctx.getObjCMethodRedeclaration(this)); | |||
865 | if (Redecl) | |||
866 | return Redecl; | |||
867 | ||||
868 | Decl *CtxD = cast<Decl>(getDeclContext()); | |||
869 | ||||
870 | if (!CtxD->isInvalidDecl()) { | |||
871 | if (ObjCInterfaceDecl *IFD = dyn_cast<ObjCInterfaceDecl>(CtxD)) { | |||
872 | if (ObjCImplementationDecl *ImplD = Ctx.getObjCImplementation(IFD)) | |||
873 | if (!ImplD->isInvalidDecl()) | |||
874 | Redecl = ImplD->getMethod(getSelector(), isInstanceMethod()); | |||
875 | ||||
876 | } else if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(CtxD)) { | |||
877 | if (ObjCCategoryImplDecl *ImplD = Ctx.getObjCImplementation(CD)) | |||
878 | if (!ImplD->isInvalidDecl()) | |||
879 | Redecl = ImplD->getMethod(getSelector(), isInstanceMethod()); | |||
880 | ||||
881 | } else if (ObjCImplementationDecl *ImplD = | |||
882 | dyn_cast<ObjCImplementationDecl>(CtxD)) { | |||
883 | if (ObjCInterfaceDecl *IFD = ImplD->getClassInterface()) | |||
884 | if (!IFD->isInvalidDecl()) | |||
885 | Redecl = IFD->getMethod(getSelector(), isInstanceMethod()); | |||
886 | ||||
887 | } else if (ObjCCategoryImplDecl *CImplD = | |||
888 | dyn_cast<ObjCCategoryImplDecl>(CtxD)) { | |||
889 | if (ObjCCategoryDecl *CatD = CImplD->getCategoryDecl()) | |||
890 | if (!CatD->isInvalidDecl()) | |||
891 | Redecl = CatD->getMethod(getSelector(), isInstanceMethod()); | |||
892 | } | |||
893 | } | |||
894 | ||||
895 | // Ensure that the discovered method redeclaration has a valid declaration | |||
896 | // context. Used to prevent infinite loops when iterating redeclarations in | |||
897 | // a partially invalid AST. | |||
898 | if (Redecl && cast<Decl>(Redecl->getDeclContext())->isInvalidDecl()) | |||
899 | Redecl = nullptr; | |||
900 | ||||
901 | if (!Redecl && isRedeclaration()) { | |||
902 | // This is the last redeclaration, go back to the first method. | |||
903 | return cast<ObjCContainerDecl>(CtxD)->getMethod(getSelector(), | |||
904 | isInstanceMethod()); | |||
905 | } | |||
906 | ||||
907 | return Redecl ? Redecl : this; | |||
908 | } | |||
909 | ||||
910 | ObjCMethodDecl *ObjCMethodDecl::getCanonicalDecl() { | |||
911 | Decl *CtxD = cast<Decl>(getDeclContext()); | |||
912 | ||||
913 | if (ObjCImplementationDecl *ImplD = dyn_cast<ObjCImplementationDecl>(CtxD)) { | |||
914 | if (ObjCInterfaceDecl *IFD = ImplD->getClassInterface()) | |||
915 | if (ObjCMethodDecl *MD = IFD->getMethod(getSelector(), | |||
916 | isInstanceMethod())) | |||
917 | return MD; | |||
918 | } else if (ObjCCategoryImplDecl *CImplD = | |||
919 | dyn_cast<ObjCCategoryImplDecl>(CtxD)) { | |||
920 | if (ObjCCategoryDecl *CatD = CImplD->getCategoryDecl()) | |||
921 | if (ObjCMethodDecl *MD = CatD->getMethod(getSelector(), | |||
922 | isInstanceMethod())) | |||
923 | return MD; | |||
924 | } | |||
925 | ||||
926 | if (isRedeclaration()) { | |||
927 | // It is possible that we have not done deserializing the ObjCMethod yet. | |||
928 | ObjCMethodDecl *MD = | |||
929 | cast<ObjCContainerDecl>(CtxD)->getMethod(getSelector(), | |||
930 | isInstanceMethod()); | |||
931 | return MD ? MD : this; | |||
932 | } | |||
933 | ||||
934 | return this; | |||
935 | } | |||
936 | ||||
937 | SourceLocation ObjCMethodDecl::getLocEnd() const { | |||
938 | if (Stmt *Body = getBody()) | |||
939 | return Body->getLocEnd(); | |||
940 | return DeclEndLoc; | |||
941 | } | |||
942 | ||||
943 | ObjCMethodFamily ObjCMethodDecl::getMethodFamily() const { | |||
944 | ObjCMethodFamily family = static_cast<ObjCMethodFamily>(Family); | |||
945 | if (family != static_cast<unsigned>(InvalidObjCMethodFamily)) | |||
946 | return family; | |||
947 | ||||
948 | // Check for an explicit attribute. | |||
949 | if (const ObjCMethodFamilyAttr *attr = getAttr<ObjCMethodFamilyAttr>()) { | |||
950 | // The unfortunate necessity of mapping between enums here is due | |||
951 | // to the attributes framework. | |||
952 | switch (attr->getFamily()) { | |||
953 | case ObjCMethodFamilyAttr::OMF_None: family = OMF_None; break; | |||
954 | case ObjCMethodFamilyAttr::OMF_alloc: family = OMF_alloc; break; | |||
955 | case ObjCMethodFamilyAttr::OMF_copy: family = OMF_copy; break; | |||
956 | case ObjCMethodFamilyAttr::OMF_init: family = OMF_init; break; | |||
957 | case ObjCMethodFamilyAttr::OMF_mutableCopy: family = OMF_mutableCopy; break; | |||
958 | case ObjCMethodFamilyAttr::OMF_new: family = OMF_new; break; | |||
959 | } | |||
960 | Family = static_cast<unsigned>(family); | |||
961 | return family; | |||
962 | } | |||
963 | ||||
964 | family = getSelector().getMethodFamily(); | |||
965 | switch (family) { | |||
966 | case OMF_None: break; | |||
967 | ||||
968 | // init only has a conventional meaning for an instance method, and | |||
969 | // it has to return an object. | |||
970 | case OMF_init: | |||
971 | if (!isInstanceMethod() || !getReturnType()->isObjCObjectPointerType()) | |||
972 | family = OMF_None; | |||
973 | break; | |||
974 | ||||
975 | // alloc/copy/new have a conventional meaning for both class and | |||
976 | // instance methods, but they require an object return. | |||
977 | case OMF_alloc: | |||
978 | case OMF_copy: | |||
979 | case OMF_mutableCopy: | |||
980 | case OMF_new: | |||
981 | if (!getReturnType()->isObjCObjectPointerType()) | |||
982 | family = OMF_None; | |||
983 | break; | |||
984 | ||||
985 | // These selectors have a conventional meaning only for instance methods. | |||
986 | case OMF_dealloc: | |||
987 | case OMF_finalize: | |||
988 | case OMF_retain: | |||
989 | case OMF_release: | |||
990 | case OMF_autorelease: | |||
991 | case OMF_retainCount: | |||
992 | case OMF_self: | |||
993 | if (!isInstanceMethod()) | |||
994 | family = OMF_None; | |||
995 | break; | |||
996 | ||||
997 | case OMF_initialize: | |||
998 | if (isInstanceMethod() || !getReturnType()->isVoidType()) | |||
999 | family = OMF_None; | |||
1000 | break; | |||
1001 | ||||
1002 | case OMF_performSelector: | |||
1003 | if (!isInstanceMethod() || !getReturnType()->isObjCIdType()) | |||
1004 | family = OMF_None; | |||
1005 | else { | |||
1006 | unsigned noParams = param_size(); | |||
1007 | if (noParams < 1 || noParams > 3) | |||
1008 | family = OMF_None; | |||
1009 | else { | |||
1010 | ObjCMethodDecl::param_type_iterator it = param_type_begin(); | |||
1011 | QualType ArgT = (*it); | |||
1012 | if (!ArgT->isObjCSelType()) { | |||
1013 | family = OMF_None; | |||
1014 | break; | |||
1015 | } | |||
1016 | while (--noParams) { | |||
1017 | it++; | |||
1018 | ArgT = (*it); | |||
1019 | if (!ArgT->isObjCIdType()) { | |||
1020 | family = OMF_None; | |||
1021 | break; | |||
1022 | } | |||
1023 | } | |||
1024 | } | |||
1025 | } | |||
1026 | break; | |||
1027 | ||||
1028 | } | |||
1029 | ||||
1030 | // Cache the result. | |||
1031 | Family = static_cast<unsigned>(family); | |||
1032 | return family; | |||
1033 | } | |||
1034 | ||||
1035 | QualType ObjCMethodDecl::getSelfType(ASTContext &Context, | |||
1036 | const ObjCInterfaceDecl *OID, | |||
1037 | bool &selfIsPseudoStrong, | |||
1038 | bool &selfIsConsumed) { | |||
1039 | QualType selfTy; | |||
1040 | selfIsPseudoStrong = false; | |||
1041 | selfIsConsumed = false; | |||
1042 | if (isInstanceMethod()) { | |||
1043 | // There may be no interface context due to error in declaration | |||
1044 | // of the interface (which has been reported). Recover gracefully. | |||
1045 | if (OID) { | |||
1046 | selfTy = Context.getObjCInterfaceType(OID); | |||
1047 | selfTy = Context.getObjCObjectPointerType(selfTy); | |||
1048 | } else { | |||
1049 | selfTy = Context.getObjCIdType(); | |||
1050 | } | |||
1051 | } else // we have a factory method. | |||
1052 | selfTy = Context.getObjCClassType(); | |||
1053 | ||||
1054 | if (Context.getLangOpts().ObjCAutoRefCount) { | |||
1055 | if (isInstanceMethod()) { | |||
1056 | selfIsConsumed = hasAttr<NSConsumesSelfAttr>(); | |||
1057 | ||||
1058 | // 'self' is always __strong. It's actually pseudo-strong except | |||
1059 | // in init methods (or methods labeled ns_consumes_self), though. | |||
1060 | Qualifiers qs; | |||
1061 | qs.setObjCLifetime(Qualifiers::OCL_Strong); | |||
1062 | selfTy = Context.getQualifiedType(selfTy, qs); | |||
1063 | ||||
1064 | // In addition, 'self' is const unless this is an init method. | |||
1065 | if (getMethodFamily() != OMF_init && !selfIsConsumed) { | |||
1066 | selfTy = selfTy.withConst(); | |||
1067 | selfIsPseudoStrong = true; | |||
1068 | } | |||
1069 | } | |||
1070 | else { | |||
1071 | assert(isClassMethod())(static_cast <bool> (isClassMethod()) ? void (0) : __assert_fail ("isClassMethod()", "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1071, __extension__ __PRETTY_FUNCTION__)); | |||
1072 | // 'self' is always const in class methods. | |||
1073 | selfTy = selfTy.withConst(); | |||
1074 | selfIsPseudoStrong = true; | |||
1075 | } | |||
1076 | } | |||
1077 | return selfTy; | |||
1078 | } | |||
1079 | ||||
1080 | void ObjCMethodDecl::createImplicitParams(ASTContext &Context, | |||
1081 | const ObjCInterfaceDecl *OID) { | |||
1082 | bool selfIsPseudoStrong, selfIsConsumed; | |||
1083 | QualType selfTy = | |||
1084 | getSelfType(Context, OID, selfIsPseudoStrong, selfIsConsumed); | |||
1085 | auto *Self = ImplicitParamDecl::Create(Context, this, SourceLocation(), | |||
1086 | &Context.Idents.get("self"), selfTy, | |||
1087 | ImplicitParamDecl::ObjCSelf); | |||
1088 | setSelfDecl(Self); | |||
1089 | ||||
1090 | if (selfIsConsumed) | |||
1091 | Self->addAttr(NSConsumedAttr::CreateImplicit(Context)); | |||
1092 | ||||
1093 | if (selfIsPseudoStrong) | |||
1094 | Self->setARCPseudoStrong(true); | |||
1095 | ||||
1096 | setCmdDecl(ImplicitParamDecl::Create( | |||
1097 | Context, this, SourceLocation(), &Context.Idents.get("_cmd"), | |||
1098 | Context.getObjCSelType(), ImplicitParamDecl::ObjCCmd)); | |||
1099 | } | |||
1100 | ||||
1101 | ObjCInterfaceDecl *ObjCMethodDecl::getClassInterface() { | |||
1102 | if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(getDeclContext())) | |||
1103 | return ID; | |||
1104 | if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(getDeclContext())) | |||
1105 | return CD->getClassInterface(); | |||
1106 | if (ObjCImplDecl *IMD = dyn_cast<ObjCImplDecl>(getDeclContext())) | |||
1107 | return IMD->getClassInterface(); | |||
1108 | if (isa<ObjCProtocolDecl>(getDeclContext())) | |||
1109 | return nullptr; | |||
1110 | llvm_unreachable("unknown method context")::llvm::llvm_unreachable_internal("unknown method context", "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1110); | |||
1111 | } | |||
1112 | ||||
1113 | SourceRange ObjCMethodDecl::getReturnTypeSourceRange() const { | |||
1114 | const auto *TSI = getReturnTypeSourceInfo(); | |||
1115 | if (TSI) | |||
1116 | return TSI->getTypeLoc().getSourceRange(); | |||
1117 | return SourceRange(); | |||
1118 | } | |||
1119 | ||||
1120 | QualType ObjCMethodDecl::getSendResultType() const { | |||
1121 | ASTContext &Ctx = getASTContext(); | |||
1122 | return getReturnType().getNonLValueExprType(Ctx) | |||
1123 | .substObjCTypeArgs(Ctx, {}, ObjCSubstitutionContext::Result); | |||
1124 | } | |||
1125 | ||||
1126 | QualType ObjCMethodDecl::getSendResultType(QualType receiverType) const { | |||
1127 | // FIXME: Handle related result types here. | |||
1128 | ||||
1129 | return getReturnType().getNonLValueExprType(getASTContext()) | |||
1130 | .substObjCMemberType(receiverType, getDeclContext(), | |||
1131 | ObjCSubstitutionContext::Result); | |||
1132 | } | |||
1133 | ||||
1134 | static void CollectOverriddenMethodsRecurse(const ObjCContainerDecl *Container, | |||
1135 | const ObjCMethodDecl *Method, | |||
1136 | SmallVectorImpl<const ObjCMethodDecl *> &Methods, | |||
1137 | bool MovedToSuper) { | |||
1138 | if (!Container) | |||
1139 | return; | |||
1140 | ||||
1141 | // In categories look for overridden methods from protocols. A method from | |||
1142 | // category is not "overridden" since it is considered as the "same" method | |||
1143 | // (same USR) as the one from the interface. | |||
1144 | if (const ObjCCategoryDecl * | |||
1145 | Category = dyn_cast<ObjCCategoryDecl>(Container)) { | |||
1146 | // Check whether we have a matching method at this category but only if we | |||
1147 | // are at the super class level. | |||
1148 | if (MovedToSuper) | |||
1149 | if (ObjCMethodDecl * | |||
1150 | Overridden = Container->getMethod(Method->getSelector(), | |||
1151 | Method->isInstanceMethod(), | |||
1152 | /*AllowHidden=*/true)) | |||
1153 | if (Method != Overridden) { | |||
1154 | // We found an override at this category; there is no need to look | |||
1155 | // into its protocols. | |||
1156 | Methods.push_back(Overridden); | |||
1157 | return; | |||
1158 | } | |||
1159 | ||||
1160 | for (const auto *P : Category->protocols()) | |||
1161 | CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper); | |||
1162 | return; | |||
1163 | } | |||
1164 | ||||
1165 | // Check whether we have a matching method at this level. | |||
1166 | if (const ObjCMethodDecl * | |||
1167 | Overridden = Container->getMethod(Method->getSelector(), | |||
1168 | Method->isInstanceMethod(), | |||
1169 | /*AllowHidden=*/true)) | |||
1170 | if (Method != Overridden) { | |||
1171 | // We found an override at this level; there is no need to look | |||
1172 | // into other protocols or categories. | |||
1173 | Methods.push_back(Overridden); | |||
1174 | return; | |||
1175 | } | |||
1176 | ||||
1177 | if (const ObjCProtocolDecl *Protocol = dyn_cast<ObjCProtocolDecl>(Container)){ | |||
1178 | for (const auto *P : Protocol->protocols()) | |||
1179 | CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper); | |||
1180 | } | |||
1181 | ||||
1182 | if (const ObjCInterfaceDecl * | |||
1183 | Interface = dyn_cast<ObjCInterfaceDecl>(Container)) { | |||
1184 | for (const auto *P : Interface->protocols()) | |||
1185 | CollectOverriddenMethodsRecurse(P, Method, Methods, MovedToSuper); | |||
1186 | ||||
1187 | for (const auto *Cat : Interface->known_categories()) | |||
1188 | CollectOverriddenMethodsRecurse(Cat, Method, Methods, MovedToSuper); | |||
1189 | ||||
1190 | if (const ObjCInterfaceDecl *Super = Interface->getSuperClass()) | |||
1191 | return CollectOverriddenMethodsRecurse(Super, Method, Methods, | |||
1192 | /*MovedToSuper=*/true); | |||
1193 | } | |||
1194 | } | |||
1195 | ||||
1196 | static inline void CollectOverriddenMethods(const ObjCContainerDecl *Container, | |||
1197 | const ObjCMethodDecl *Method, | |||
1198 | SmallVectorImpl<const ObjCMethodDecl *> &Methods) { | |||
1199 | CollectOverriddenMethodsRecurse(Container, Method, Methods, | |||
1200 | /*MovedToSuper=*/false); | |||
1201 | } | |||
1202 | ||||
1203 | static void collectOverriddenMethodsSlow(const ObjCMethodDecl *Method, | |||
1204 | SmallVectorImpl<const ObjCMethodDecl *> &overridden) { | |||
1205 | assert(Method->isOverriding())(static_cast <bool> (Method->isOverriding()) ? void ( 0) : __assert_fail ("Method->isOverriding()", "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1205, __extension__ __PRETTY_FUNCTION__)); | |||
1206 | ||||
1207 | if (const ObjCProtocolDecl * | |||
1208 | ProtD = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext())) { | |||
1209 | CollectOverriddenMethods(ProtD, Method, overridden); | |||
1210 | ||||
1211 | } else if (const ObjCImplDecl * | |||
1212 | IMD = dyn_cast<ObjCImplDecl>(Method->getDeclContext())) { | |||
1213 | const ObjCInterfaceDecl *ID = IMD->getClassInterface(); | |||
1214 | if (!ID) | |||
1215 | return; | |||
1216 | // Start searching for overridden methods using the method from the | |||
1217 | // interface as starting point. | |||
1218 | if (const ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), | |||
1219 | Method->isInstanceMethod(), | |||
1220 | /*AllowHidden=*/true)) | |||
1221 | Method = IFaceMeth; | |||
1222 | CollectOverriddenMethods(ID, Method, overridden); | |||
1223 | ||||
1224 | } else if (const ObjCCategoryDecl * | |||
1225 | CatD = dyn_cast<ObjCCategoryDecl>(Method->getDeclContext())) { | |||
1226 | const ObjCInterfaceDecl *ID = CatD->getClassInterface(); | |||
1227 | if (!ID) | |||
1228 | return; | |||
1229 | // Start searching for overridden methods using the method from the | |||
1230 | // interface as starting point. | |||
1231 | if (const ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), | |||
1232 | Method->isInstanceMethod(), | |||
1233 | /*AllowHidden=*/true)) | |||
1234 | Method = IFaceMeth; | |||
1235 | CollectOverriddenMethods(ID, Method, overridden); | |||
1236 | ||||
1237 | } else { | |||
1238 | CollectOverriddenMethods( | |||
1239 | dyn_cast_or_null<ObjCContainerDecl>(Method->getDeclContext()), | |||
1240 | Method, overridden); | |||
1241 | } | |||
1242 | } | |||
1243 | ||||
1244 | void ObjCMethodDecl::getOverriddenMethods( | |||
1245 | SmallVectorImpl<const ObjCMethodDecl *> &Overridden) const { | |||
1246 | const ObjCMethodDecl *Method = this; | |||
1247 | ||||
1248 | if (Method->isRedeclaration()) { | |||
1249 | Method = cast<ObjCContainerDecl>(Method->getDeclContext())-> | |||
1250 | getMethod(Method->getSelector(), Method->isInstanceMethod()); | |||
1251 | } | |||
1252 | ||||
1253 | if (Method->isOverriding()) { | |||
1254 | collectOverriddenMethodsSlow(Method, Overridden); | |||
1255 | 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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1256, __extension__ __PRETTY_FUNCTION__)) | |||
1256 | "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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1256, __extension__ __PRETTY_FUNCTION__)); | |||
1257 | } | |||
1258 | } | |||
1259 | ||||
1260 | const ObjCPropertyDecl * | |||
1261 | ObjCMethodDecl::findPropertyDecl(bool CheckOverrides) const { | |||
1262 | Selector Sel = getSelector(); | |||
1263 | unsigned NumArgs = Sel.getNumArgs(); | |||
1264 | if (NumArgs > 1) | |||
1265 | return nullptr; | |||
1266 | ||||
1267 | if (isPropertyAccessor()) { | |||
1268 | const ObjCContainerDecl *Container = cast<ObjCContainerDecl>(getParent()); | |||
1269 | bool IsGetter = (NumArgs == 0); | |||
1270 | bool IsInstance = isInstanceMethod(); | |||
1271 | ||||
1272 | /// Local function that attempts to find a matching property within the | |||
1273 | /// given Objective-C container. | |||
1274 | auto findMatchingProperty = | |||
1275 | [&](const ObjCContainerDecl *Container) -> const ObjCPropertyDecl * { | |||
1276 | if (IsInstance) { | |||
1277 | for (const auto *I : Container->instance_properties()) { | |||
1278 | Selector NextSel = IsGetter ? I->getGetterName() | |||
1279 | : I->getSetterName(); | |||
1280 | if (NextSel == Sel) | |||
1281 | return I; | |||
1282 | } | |||
1283 | } else { | |||
1284 | for (const auto *I : Container->class_properties()) { | |||
1285 | Selector NextSel = IsGetter ? I->getGetterName() | |||
1286 | : I->getSetterName(); | |||
1287 | if (NextSel == Sel) | |||
1288 | return I; | |||
1289 | } | |||
1290 | } | |||
1291 | ||||
1292 | return nullptr; | |||
1293 | }; | |||
1294 | ||||
1295 | // Look in the container we were given. | |||
1296 | if (const auto *Found = findMatchingProperty(Container)) | |||
1297 | return Found; | |||
1298 | ||||
1299 | // If we're in a category or extension, look in the main class. | |||
1300 | const ObjCInterfaceDecl *ClassDecl = nullptr; | |||
1301 | if (const auto *Category = dyn_cast<ObjCCategoryDecl>(Container)) { | |||
1302 | ClassDecl = Category->getClassInterface(); | |||
1303 | if (const auto *Found = findMatchingProperty(ClassDecl)) | |||
1304 | return Found; | |||
1305 | } else { | |||
1306 | // Determine whether the container is a class. | |||
1307 | ClassDecl = dyn_cast<ObjCInterfaceDecl>(Container); | |||
1308 | } | |||
1309 | ||||
1310 | // If we have a class, check its visible extensions. | |||
1311 | if (ClassDecl) { | |||
1312 | for (const auto *Ext : ClassDecl->visible_extensions()) { | |||
1313 | if (Ext == Container) | |||
1314 | continue; | |||
1315 | ||||
1316 | if (const auto *Found = findMatchingProperty(Ext)) | |||
1317 | return Found; | |||
1318 | } | |||
1319 | } | |||
1320 | ||||
1321 | llvm_unreachable("Marked as a property accessor but no property found!")::llvm::llvm_unreachable_internal("Marked as a property accessor but no property found!" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1321); | |||
1322 | } | |||
1323 | ||||
1324 | if (!CheckOverrides) | |||
1325 | return nullptr; | |||
1326 | ||||
1327 | using OverridesTy = SmallVector<const ObjCMethodDecl *, 8>; | |||
1328 | ||||
1329 | OverridesTy Overrides; | |||
1330 | getOverriddenMethods(Overrides); | |||
1331 | for (OverridesTy::const_iterator I = Overrides.begin(), E = Overrides.end(); | |||
1332 | I != E; ++I) { | |||
1333 | if (const ObjCPropertyDecl *Prop = (*I)->findPropertyDecl(false)) | |||
1334 | return Prop; | |||
1335 | } | |||
1336 | ||||
1337 | return nullptr; | |||
1338 | } | |||
1339 | ||||
1340 | //===----------------------------------------------------------------------===// | |||
1341 | // ObjCTypeParamDecl | |||
1342 | //===----------------------------------------------------------------------===// | |||
1343 | ||||
1344 | void ObjCTypeParamDecl::anchor() {} | |||
1345 | ||||
1346 | ObjCTypeParamDecl *ObjCTypeParamDecl::Create(ASTContext &ctx, DeclContext *dc, | |||
1347 | ObjCTypeParamVariance variance, | |||
1348 | SourceLocation varianceLoc, | |||
1349 | unsigned index, | |||
1350 | SourceLocation nameLoc, | |||
1351 | IdentifierInfo *name, | |||
1352 | SourceLocation colonLoc, | |||
1353 | TypeSourceInfo *boundInfo) { | |||
1354 | auto *TPDecl = | |||
1355 | new (ctx, dc) ObjCTypeParamDecl(ctx, dc, variance, varianceLoc, index, | |||
1356 | nameLoc, name, colonLoc, boundInfo); | |||
1357 | QualType TPType = ctx.getObjCTypeParamType(TPDecl, {}); | |||
1358 | TPDecl->setTypeForDecl(TPType.getTypePtr()); | |||
1359 | return TPDecl; | |||
1360 | } | |||
1361 | ||||
1362 | ObjCTypeParamDecl *ObjCTypeParamDecl::CreateDeserialized(ASTContext &ctx, | |||
1363 | unsigned ID) { | |||
1364 | return new (ctx, ID) ObjCTypeParamDecl(ctx, nullptr, | |||
1365 | ObjCTypeParamVariance::Invariant, | |||
1366 | SourceLocation(), 0, SourceLocation(), | |||
1367 | nullptr, SourceLocation(), nullptr); | |||
1368 | } | |||
1369 | ||||
1370 | SourceRange ObjCTypeParamDecl::getSourceRange() const { | |||
1371 | SourceLocation startLoc = VarianceLoc; | |||
1372 | if (startLoc.isInvalid()) | |||
1373 | startLoc = getLocation(); | |||
1374 | ||||
1375 | if (hasExplicitBound()) { | |||
1376 | return SourceRange(startLoc, | |||
1377 | getTypeSourceInfo()->getTypeLoc().getEndLoc()); | |||
1378 | } | |||
1379 | ||||
1380 | return SourceRange(startLoc); | |||
1381 | } | |||
1382 | ||||
1383 | //===----------------------------------------------------------------------===// | |||
1384 | // ObjCTypeParamList | |||
1385 | //===----------------------------------------------------------------------===// | |||
1386 | ObjCTypeParamList::ObjCTypeParamList(SourceLocation lAngleLoc, | |||
1387 | ArrayRef<ObjCTypeParamDecl *> typeParams, | |||
1388 | SourceLocation rAngleLoc) | |||
1389 | : NumParams(typeParams.size()) { | |||
1390 | Brackets.Begin = lAngleLoc.getRawEncoding(); | |||
1391 | Brackets.End = rAngleLoc.getRawEncoding(); | |||
1392 | std::copy(typeParams.begin(), typeParams.end(), begin()); | |||
1393 | } | |||
1394 | ||||
1395 | ObjCTypeParamList *ObjCTypeParamList::create( | |||
1396 | ASTContext &ctx, | |||
1397 | SourceLocation lAngleLoc, | |||
1398 | ArrayRef<ObjCTypeParamDecl *> typeParams, | |||
1399 | SourceLocation rAngleLoc) { | |||
1400 | void *mem = | |||
1401 | ctx.Allocate(totalSizeToAlloc<ObjCTypeParamDecl *>(typeParams.size()), | |||
1402 | alignof(ObjCTypeParamList)); | |||
1403 | return new (mem) ObjCTypeParamList(lAngleLoc, typeParams, rAngleLoc); | |||
1404 | } | |||
1405 | ||||
1406 | void ObjCTypeParamList::gatherDefaultTypeArgs( | |||
1407 | SmallVectorImpl<QualType> &typeArgs) const { | |||
1408 | typeArgs.reserve(size()); | |||
1409 | for (auto typeParam : *this) | |||
1410 | typeArgs.push_back(typeParam->getUnderlyingType()); | |||
1411 | } | |||
1412 | ||||
1413 | //===----------------------------------------------------------------------===// | |||
1414 | // ObjCInterfaceDecl | |||
1415 | //===----------------------------------------------------------------------===// | |||
1416 | ||||
1417 | ObjCInterfaceDecl *ObjCInterfaceDecl::Create(const ASTContext &C, | |||
1418 | DeclContext *DC, | |||
1419 | SourceLocation atLoc, | |||
1420 | IdentifierInfo *Id, | |||
1421 | ObjCTypeParamList *typeParamList, | |||
1422 | ObjCInterfaceDecl *PrevDecl, | |||
1423 | SourceLocation ClassLoc, | |||
1424 | bool isInternal){ | |||
1425 | ObjCInterfaceDecl *Result = new (C, DC) | |||
1426 | ObjCInterfaceDecl(C, DC, atLoc, Id, typeParamList, ClassLoc, PrevDecl, | |||
1427 | isInternal); | |||
1428 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1429 | C.getObjCInterfaceType(Result, PrevDecl); | |||
1430 | return Result; | |||
1431 | } | |||
1432 | ||||
1433 | ObjCInterfaceDecl *ObjCInterfaceDecl::CreateDeserialized(const ASTContext &C, | |||
1434 | unsigned ID) { | |||
1435 | ObjCInterfaceDecl *Result = new (C, ID) ObjCInterfaceDecl(C, nullptr, | |||
1436 | SourceLocation(), | |||
1437 | nullptr, | |||
1438 | nullptr, | |||
1439 | SourceLocation(), | |||
1440 | nullptr, false); | |||
1441 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1442 | return Result; | |||
1443 | } | |||
1444 | ||||
1445 | ObjCInterfaceDecl::ObjCInterfaceDecl(const ASTContext &C, DeclContext *DC, | |||
1446 | SourceLocation AtLoc, IdentifierInfo *Id, | |||
1447 | ObjCTypeParamList *typeParamList, | |||
1448 | SourceLocation CLoc, | |||
1449 | ObjCInterfaceDecl *PrevDecl, | |||
1450 | bool IsInternal) | |||
1451 | : ObjCContainerDecl(ObjCInterface, DC, Id, CLoc, AtLoc), | |||
1452 | redeclarable_base(C) { | |||
1453 | setPreviousDecl(PrevDecl); | |||
1454 | ||||
1455 | // Copy the 'data' pointer over. | |||
1456 | if (PrevDecl) | |||
1457 | Data = PrevDecl->Data; | |||
1458 | ||||
1459 | setImplicit(IsInternal); | |||
1460 | ||||
1461 | setTypeParamList(typeParamList); | |||
1462 | } | |||
1463 | ||||
1464 | void ObjCInterfaceDecl::LoadExternalDefinition() const { | |||
1465 | 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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1465, __extension__ __PRETTY_FUNCTION__)); | |||
1466 | data().ExternallyCompleted = false; | |||
1467 | getASTContext().getExternalSource()->CompleteType( | |||
1468 | const_cast<ObjCInterfaceDecl *>(this)); | |||
1469 | } | |||
1470 | ||||
1471 | void ObjCInterfaceDecl::setExternallyCompleted() { | |||
1472 | 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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1473, __extension__ __PRETTY_FUNCTION__)) | |||
1473 | "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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1473, __extension__ __PRETTY_FUNCTION__)); | |||
1474 | 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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1475, __extension__ __PRETTY_FUNCTION__)) | |||
1475 | "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\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1475, __extension__ __PRETTY_FUNCTION__)); | |||
1476 | data().ExternallyCompleted = true; | |||
1477 | } | |||
1478 | ||||
1479 | void ObjCInterfaceDecl::setHasDesignatedInitializers() { | |||
1480 | // Check for a complete definition and recover if not so. | |||
1481 | if (!isThisDeclarationADefinition()) | |||
1482 | return; | |||
1483 | data().HasDesignatedInitializers = true; | |||
1484 | } | |||
1485 | ||||
1486 | bool ObjCInterfaceDecl::hasDesignatedInitializers() const { | |||
1487 | // Check for a complete definition and recover if not so. | |||
1488 | if (!isThisDeclarationADefinition()) | |||
1489 | return false; | |||
1490 | if (data().ExternallyCompleted) | |||
1491 | LoadExternalDefinition(); | |||
1492 | ||||
1493 | return data().HasDesignatedInitializers; | |||
1494 | } | |||
1495 | ||||
1496 | StringRef | |||
1497 | ObjCInterfaceDecl::getObjCRuntimeNameAsString() const { | |||
1498 | if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>()) | |||
1499 | return ObjCRTName->getMetadataName(); | |||
1500 | ||||
1501 | return getName(); | |||
1502 | } | |||
1503 | ||||
1504 | StringRef | |||
1505 | ObjCImplementationDecl::getObjCRuntimeNameAsString() const { | |||
1506 | if (ObjCInterfaceDecl *ID = | |||
1507 | const_cast<ObjCImplementationDecl*>(this)->getClassInterface()) | |||
1508 | return ID->getObjCRuntimeNameAsString(); | |||
1509 | ||||
1510 | return getName(); | |||
1511 | } | |||
1512 | ||||
1513 | ObjCImplementationDecl *ObjCInterfaceDecl::getImplementation() const { | |||
1514 | if (const ObjCInterfaceDecl *Def = getDefinition()) { | |||
1515 | if (data().ExternallyCompleted) | |||
1516 | LoadExternalDefinition(); | |||
1517 | ||||
1518 | return getASTContext().getObjCImplementation( | |||
1519 | const_cast<ObjCInterfaceDecl*>(Def)); | |||
1520 | } | |||
1521 | ||||
1522 | // FIXME: Should make sure no callers ever do this. | |||
1523 | return nullptr; | |||
1524 | } | |||
1525 | ||||
1526 | void ObjCInterfaceDecl::setImplementation(ObjCImplementationDecl *ImplD) { | |||
1527 | getASTContext().setObjCImplementation(getDefinition(), ImplD); | |||
1528 | } | |||
1529 | ||||
1530 | namespace { | |||
1531 | ||||
1532 | struct SynthesizeIvarChunk { | |||
1533 | uint64_t Size; | |||
1534 | ObjCIvarDecl *Ivar; | |||
1535 | ||||
1536 | SynthesizeIvarChunk(uint64_t size, ObjCIvarDecl *ivar) | |||
1537 | : Size(size), Ivar(ivar) {} | |||
1538 | }; | |||
1539 | ||||
1540 | bool operator<(const SynthesizeIvarChunk & LHS, | |||
1541 | const SynthesizeIvarChunk &RHS) { | |||
1542 | return LHS.Size < RHS.Size; | |||
1543 | } | |||
1544 | ||||
1545 | } // namespace | |||
1546 | ||||
1547 | /// all_declared_ivar_begin - return first ivar declared in this class, | |||
1548 | /// its extensions and its implementation. Lazily build the list on first | |||
1549 | /// access. | |||
1550 | /// | |||
1551 | /// Caveat: The list returned by this method reflects the current | |||
1552 | /// state of the parser. The cache will be updated for every ivar | |||
1553 | /// added by an extension or the implementation when they are | |||
1554 | /// encountered. | |||
1555 | /// See also ObjCIvarDecl::Create(). | |||
1556 | ObjCIvarDecl *ObjCInterfaceDecl::all_declared_ivar_begin() { | |||
1557 | // FIXME: Should make sure no callers ever do this. | |||
1558 | if (!hasDefinition()) | |||
1559 | return nullptr; | |||
1560 | ||||
1561 | ObjCIvarDecl *curIvar = nullptr; | |||
1562 | if (!data().IvarList) { | |||
1563 | if (!ivar_empty()) { | |||
1564 | ObjCInterfaceDecl::ivar_iterator I = ivar_begin(), E = ivar_end(); | |||
1565 | data().IvarList = *I; ++I; | |||
1566 | for (curIvar = data().IvarList; I != E; curIvar = *I, ++I) | |||
1567 | curIvar->setNextIvar(*I); | |||
1568 | } | |||
1569 | ||||
1570 | for (const auto *Ext : known_extensions()) { | |||
1571 | if (!Ext->ivar_empty()) { | |||
1572 | ObjCCategoryDecl::ivar_iterator | |||
1573 | I = Ext->ivar_begin(), | |||
1574 | E = Ext->ivar_end(); | |||
1575 | if (!data().IvarList) { | |||
1576 | data().IvarList = *I; ++I; | |||
1577 | curIvar = data().IvarList; | |||
1578 | } | |||
1579 | for ( ;I != E; curIvar = *I, ++I) | |||
1580 | curIvar->setNextIvar(*I); | |||
1581 | } | |||
1582 | } | |||
1583 | data().IvarListMissingImplementation = true; | |||
1584 | } | |||
1585 | ||||
1586 | // cached and complete! | |||
1587 | if (!data().IvarListMissingImplementation) | |||
1588 | return data().IvarList; | |||
1589 | ||||
1590 | if (ObjCImplementationDecl *ImplDecl = getImplementation()) { | |||
1591 | data().IvarListMissingImplementation = false; | |||
1592 | if (!ImplDecl->ivar_empty()) { | |||
1593 | SmallVector<SynthesizeIvarChunk, 16> layout; | |||
1594 | for (auto *IV : ImplDecl->ivars()) { | |||
1595 | if (IV->getSynthesize() && !IV->isInvalidDecl()) { | |||
1596 | layout.push_back(SynthesizeIvarChunk( | |||
1597 | IV->getASTContext().getTypeSize(IV->getType()), IV)); | |||
1598 | continue; | |||
1599 | } | |||
1600 | if (!data().IvarList) | |||
1601 | data().IvarList = IV; | |||
1602 | else | |||
1603 | curIvar->setNextIvar(IV); | |||
1604 | curIvar = IV; | |||
1605 | } | |||
1606 | ||||
1607 | if (!layout.empty()) { | |||
1608 | // Order synthesized ivars by their size. | |||
1609 | std::stable_sort(layout.begin(), layout.end()); | |||
1610 | unsigned Ix = 0, EIx = layout.size(); | |||
1611 | if (!data().IvarList) { | |||
1612 | data().IvarList = layout[0].Ivar; Ix++; | |||
1613 | curIvar = data().IvarList; | |||
1614 | } | |||
1615 | for ( ; Ix != EIx; curIvar = layout[Ix].Ivar, Ix++) | |||
1616 | curIvar->setNextIvar(layout[Ix].Ivar); | |||
1617 | } | |||
1618 | } | |||
1619 | } | |||
1620 | return data().IvarList; | |||
1621 | } | |||
1622 | ||||
1623 | /// FindCategoryDeclaration - Finds category declaration in the list of | |||
1624 | /// categories for this class and returns it. Name of the category is passed | |||
1625 | /// in 'CategoryId'. If category not found, return 0; | |||
1626 | /// | |||
1627 | ObjCCategoryDecl * | |||
1628 | ObjCInterfaceDecl::FindCategoryDeclaration(IdentifierInfo *CategoryId) const { | |||
1629 | // FIXME: Should make sure no callers ever do this. | |||
1630 | if (!hasDefinition()) | |||
1631 | return nullptr; | |||
1632 | ||||
1633 | if (data().ExternallyCompleted) | |||
1634 | LoadExternalDefinition(); | |||
1635 | ||||
1636 | for (auto *Cat : visible_categories()) | |||
1637 | if (Cat->getIdentifier() == CategoryId) | |||
1638 | return Cat; | |||
1639 | ||||
1640 | return nullptr; | |||
1641 | } | |||
1642 | ||||
1643 | ObjCMethodDecl * | |||
1644 | ObjCInterfaceDecl::getCategoryInstanceMethod(Selector Sel) const { | |||
1645 | for (const auto *Cat : visible_categories()) { | |||
1646 | if (ObjCCategoryImplDecl *Impl = Cat->getImplementation()) | |||
1647 | if (ObjCMethodDecl *MD = Impl->getInstanceMethod(Sel)) | |||
1648 | return MD; | |||
1649 | } | |||
1650 | ||||
1651 | return nullptr; | |||
1652 | } | |||
1653 | ||||
1654 | ObjCMethodDecl *ObjCInterfaceDecl::getCategoryClassMethod(Selector Sel) const { | |||
1655 | for (const auto *Cat : visible_categories()) { | |||
1656 | if (ObjCCategoryImplDecl *Impl = Cat->getImplementation()) | |||
1657 | if (ObjCMethodDecl *MD = Impl->getClassMethod(Sel)) | |||
1658 | return MD; | |||
1659 | } | |||
1660 | ||||
1661 | return nullptr; | |||
1662 | } | |||
1663 | ||||
1664 | /// ClassImplementsProtocol - Checks that 'lProto' protocol | |||
1665 | /// has been implemented in IDecl class, its super class or categories (if | |||
1666 | /// lookupCategory is true). | |||
1667 | bool ObjCInterfaceDecl::ClassImplementsProtocol(ObjCProtocolDecl *lProto, | |||
1668 | bool lookupCategory, | |||
1669 | bool RHSIsQualifiedID) { | |||
1670 | if (!hasDefinition()) | |||
1671 | return false; | |||
1672 | ||||
1673 | ObjCInterfaceDecl *IDecl = this; | |||
1674 | // 1st, look up the class. | |||
1675 | for (auto *PI : IDecl->protocols()){ | |||
1676 | if (getASTContext().ProtocolCompatibleWithProtocol(lProto, PI)) | |||
1677 | return true; | |||
1678 | // This is dubious and is added to be compatible with gcc. In gcc, it is | |||
1679 | // also allowed assigning a protocol-qualified 'id' type to a LHS object | |||
1680 | // when protocol in qualified LHS is in list of protocols in the rhs 'id' | |||
1681 | // object. This IMO, should be a bug. | |||
1682 | // FIXME: Treat this as an extension, and flag this as an error when GCC | |||
1683 | // extensions are not enabled. | |||
1684 | if (RHSIsQualifiedID && | |||
1685 | getASTContext().ProtocolCompatibleWithProtocol(PI, lProto)) | |||
1686 | return true; | |||
1687 | } | |||
1688 | ||||
1689 | // 2nd, look up the category. | |||
1690 | if (lookupCategory) | |||
1691 | for (const auto *Cat : visible_categories()) { | |||
1692 | for (auto *PI : Cat->protocols()) | |||
1693 | if (getASTContext().ProtocolCompatibleWithProtocol(lProto, PI)) | |||
1694 | return true; | |||
1695 | } | |||
1696 | ||||
1697 | // 3rd, look up the super class(s) | |||
1698 | if (IDecl->getSuperClass()) | |||
1699 | return | |||
1700 | IDecl->getSuperClass()->ClassImplementsProtocol(lProto, lookupCategory, | |||
1701 | RHSIsQualifiedID); | |||
1702 | ||||
1703 | return false; | |||
1704 | } | |||
1705 | ||||
1706 | //===----------------------------------------------------------------------===// | |||
1707 | // ObjCIvarDecl | |||
1708 | //===----------------------------------------------------------------------===// | |||
1709 | ||||
1710 | void ObjCIvarDecl::anchor() {} | |||
1711 | ||||
1712 | ObjCIvarDecl *ObjCIvarDecl::Create(ASTContext &C, ObjCContainerDecl *DC, | |||
1713 | SourceLocation StartLoc, | |||
1714 | SourceLocation IdLoc, IdentifierInfo *Id, | |||
1715 | QualType T, TypeSourceInfo *TInfo, | |||
1716 | AccessControl ac, Expr *BW, | |||
1717 | bool synthesized) { | |||
1718 | if (DC) { | |||
1719 | // Ivar's can only appear in interfaces, implementations (via synthesized | |||
1720 | // properties), and class extensions (via direct declaration, or synthesized | |||
1721 | // properties). | |||
1722 | // | |||
1723 | // FIXME: This should really be asserting this: | |||
1724 | // (isa<ObjCCategoryDecl>(DC) && | |||
1725 | // cast<ObjCCategoryDecl>(DC)->IsClassExtension())) | |||
1726 | // but unfortunately we sometimes place ivars into non-class extension | |||
1727 | // categories on error. This breaks an AST invariant, and should not be | |||
1728 | // fixed. | |||
1729 | 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!\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1731, __extension__ __PRETTY_FUNCTION__)) | |||
1730 | 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!\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1731, __extension__ __PRETTY_FUNCTION__)) | |||
1731 | "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!\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1731, __extension__ __PRETTY_FUNCTION__)); | |||
1732 | // Once a new ivar is created in any of class/class-extension/implementation | |||
1733 | // decl contexts, the previously built IvarList must be rebuilt. | |||
1734 | ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(DC); | |||
1735 | if (!ID) { | |||
1736 | if (ObjCImplementationDecl *IM = dyn_cast<ObjCImplementationDecl>(DC)) | |||
1737 | ID = IM->getClassInterface(); | |||
1738 | else | |||
1739 | ID = cast<ObjCCategoryDecl>(DC)->getClassInterface(); | |||
1740 | } | |||
1741 | ID->setIvarList(nullptr); | |||
1742 | } | |||
1743 | ||||
1744 | return new (C, DC) ObjCIvarDecl(DC, StartLoc, IdLoc, Id, T, TInfo, ac, BW, | |||
1745 | synthesized); | |||
1746 | } | |||
1747 | ||||
1748 | ObjCIvarDecl *ObjCIvarDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
1749 | return new (C, ID) ObjCIvarDecl(nullptr, SourceLocation(), SourceLocation(), | |||
1750 | nullptr, QualType(), nullptr, | |||
1751 | ObjCIvarDecl::None, nullptr, false); | |||
1752 | } | |||
1753 | ||||
1754 | const ObjCInterfaceDecl *ObjCIvarDecl::getContainingInterface() const { | |||
1755 | const ObjCContainerDecl *DC = cast<ObjCContainerDecl>(getDeclContext()); | |||
1756 | ||||
1757 | switch (DC->getKind()) { | |||
1758 | default: | |||
1759 | case ObjCCategoryImpl: | |||
1760 | case ObjCProtocol: | |||
1761 | llvm_unreachable("invalid ivar container!")::llvm::llvm_unreachable_internal("invalid ivar container!", "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1761); | |||
1762 | ||||
1763 | // Ivars can only appear in class extension categories. | |||
1764 | case ObjCCategory: { | |||
1765 | const ObjCCategoryDecl *CD = cast<ObjCCategoryDecl>(DC); | |||
1766 | 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!\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1766, __extension__ __PRETTY_FUNCTION__)); | |||
1767 | return CD->getClassInterface(); | |||
1768 | } | |||
1769 | ||||
1770 | case ObjCImplementation: | |||
1771 | return cast<ObjCImplementationDecl>(DC)->getClassInterface(); | |||
1772 | ||||
1773 | case ObjCInterface: | |||
1774 | return cast<ObjCInterfaceDecl>(DC); | |||
1775 | } | |||
1776 | } | |||
1777 | ||||
1778 | QualType ObjCIvarDecl::getUsageType(QualType objectType) const { | |||
1779 | return getType().substObjCMemberType(objectType, getDeclContext(), | |||
1780 | ObjCSubstitutionContext::Property); | |||
1781 | } | |||
1782 | ||||
1783 | //===----------------------------------------------------------------------===// | |||
1784 | // ObjCAtDefsFieldDecl | |||
1785 | //===----------------------------------------------------------------------===// | |||
1786 | ||||
1787 | void ObjCAtDefsFieldDecl::anchor() {} | |||
1788 | ||||
1789 | ObjCAtDefsFieldDecl | |||
1790 | *ObjCAtDefsFieldDecl::Create(ASTContext &C, DeclContext *DC, | |||
1791 | SourceLocation StartLoc, SourceLocation IdLoc, | |||
1792 | IdentifierInfo *Id, QualType T, Expr *BW) { | |||
1793 | return new (C, DC) ObjCAtDefsFieldDecl(DC, StartLoc, IdLoc, Id, T, BW); | |||
1794 | } | |||
1795 | ||||
1796 | ObjCAtDefsFieldDecl *ObjCAtDefsFieldDecl::CreateDeserialized(ASTContext &C, | |||
1797 | unsigned ID) { | |||
1798 | return new (C, ID) ObjCAtDefsFieldDecl(nullptr, SourceLocation(), | |||
1799 | SourceLocation(), nullptr, QualType(), | |||
1800 | nullptr); | |||
1801 | } | |||
1802 | ||||
1803 | //===----------------------------------------------------------------------===// | |||
1804 | // ObjCProtocolDecl | |||
1805 | //===----------------------------------------------------------------------===// | |||
1806 | ||||
1807 | void ObjCProtocolDecl::anchor() {} | |||
1808 | ||||
1809 | ObjCProtocolDecl::ObjCProtocolDecl(ASTContext &C, DeclContext *DC, | |||
1810 | IdentifierInfo *Id, SourceLocation nameLoc, | |||
1811 | SourceLocation atStartLoc, | |||
1812 | ObjCProtocolDecl *PrevDecl) | |||
1813 | : ObjCContainerDecl(ObjCProtocol, DC, Id, nameLoc, atStartLoc), | |||
1814 | redeclarable_base(C) { | |||
1815 | setPreviousDecl(PrevDecl); | |||
1816 | if (PrevDecl) | |||
1817 | Data = PrevDecl->Data; | |||
1818 | } | |||
1819 | ||||
1820 | ObjCProtocolDecl *ObjCProtocolDecl::Create(ASTContext &C, DeclContext *DC, | |||
1821 | IdentifierInfo *Id, | |||
1822 | SourceLocation nameLoc, | |||
1823 | SourceLocation atStartLoc, | |||
1824 | ObjCProtocolDecl *PrevDecl) { | |||
1825 | ObjCProtocolDecl *Result = | |||
1826 | new (C, DC) ObjCProtocolDecl(C, DC, Id, nameLoc, atStartLoc, PrevDecl); | |||
1827 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1828 | return Result; | |||
1829 | } | |||
1830 | ||||
1831 | ObjCProtocolDecl *ObjCProtocolDecl::CreateDeserialized(ASTContext &C, | |||
1832 | unsigned ID) { | |||
1833 | ObjCProtocolDecl *Result = | |||
1834 | new (C, ID) ObjCProtocolDecl(C, nullptr, nullptr, SourceLocation(), | |||
1835 | SourceLocation(), nullptr); | |||
1836 | Result->Data.setInt(!C.getLangOpts().Modules); | |||
1837 | return Result; | |||
1838 | } | |||
1839 | ||||
1840 | ObjCProtocolDecl *ObjCProtocolDecl::lookupProtocolNamed(IdentifierInfo *Name) { | |||
1841 | ObjCProtocolDecl *PDecl = this; | |||
1842 | ||||
1843 | if (Name == getIdentifier()) | |||
1844 | return PDecl; | |||
1845 | ||||
1846 | for (auto *I : protocols()) | |||
1847 | if ((PDecl = I->lookupProtocolNamed(Name))) | |||
1848 | return PDecl; | |||
1849 | ||||
1850 | return nullptr; | |||
1851 | } | |||
1852 | ||||
1853 | // lookupMethod - Lookup a instance/class method in the protocol and protocols | |||
1854 | // it inherited. | |||
1855 | ObjCMethodDecl *ObjCProtocolDecl::lookupMethod(Selector Sel, | |||
1856 | bool isInstance) const { | |||
1857 | ObjCMethodDecl *MethodDecl = nullptr; | |||
1858 | ||||
1859 | // If there is no definition or the definition is hidden, we don't find | |||
1860 | // anything. | |||
1861 | const ObjCProtocolDecl *Def = getDefinition(); | |||
1862 | if (!Def || Def->isHidden()) | |||
1863 | return nullptr; | |||
1864 | ||||
1865 | if ((MethodDecl = getMethod(Sel, isInstance))) | |||
1866 | return MethodDecl; | |||
1867 | ||||
1868 | for (const auto *I : protocols()) | |||
1869 | if ((MethodDecl = I->lookupMethod(Sel, isInstance))) | |||
1870 | return MethodDecl; | |||
1871 | return nullptr; | |||
1872 | } | |||
1873 | ||||
1874 | void ObjCProtocolDecl::allocateDefinitionData() { | |||
1875 | 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!\"" , "/build/llvm-toolchain-snapshot-7~svn329611/tools/clang/lib/AST/DeclObjC.cpp" , 1875, __extension__ __PRETTY_FUNCTION__)); | |||
1876 | Data.setPointer(new (getASTContext()) DefinitionData); | |||
1877 | Data.getPointer()->Definition = this; | |||
1878 | } | |||
1879 | ||||
1880 | void ObjCProtocolDecl::startDefinition() { | |||
1881 | allocateDefinitionData(); | |||
1882 | ||||
1883 | // Update all of the declarations with a pointer to the definition. | |||
1884 | for (auto RD : redecls()) | |||
1885 | RD->Data = this->Data; | |||
1886 | } | |||
1887 | ||||
1888 | void ObjCProtocolDecl::collectPropertiesToImplement(PropertyMap &PM, | |||
1889 | PropertyDeclOrder &PO) const { | |||
1890 | if (const ObjCProtocolDecl *PDecl = getDefinition()) { | |||
1891 | for (auto *Prop : PDecl->properties()) { | |||
1892 | // Insert into PM if not there already. | |||
1893 | PM.insert(std::make_pair( | |||
1894 | std::make_pair(Prop->getIdentifier(), Prop->isClassProperty()), | |||
1895 | Prop)); | |||
1896 | PO.push_back(Prop); | |||
1897 | } | |||
1898 | // Scan through protocol's protocols. | |||
1899 | for (const auto *PI : PDecl->protocols()) | |||
1900 | PI->collectPropertiesToImplement(PM, PO); | |||
1901 | } | |||
1902 | } | |||
1903 | ||||
1904 | void ObjCProtocolDecl::collectInheritedProtocolProperties( | |||
1905 | const ObjCPropertyDecl *Property, ProtocolPropertySet &PS, | |||
1906 | PropertyDeclOrder &PO) const { | |||
1907 | if (const ObjCProtocolDecl *PDecl = getDefinition()) { | |||
1908 | if (!PS.insert(PDecl).second) | |||
1909 | return; | |||
1910 | for (auto *Prop : PDecl->properties()) { | |||
1911 | if (Prop == Property) | |||
1912 | continue; | |||
1913 | if (Prop->getIdentifier() == Property->getIdentifier()) { | |||
1914 | PO.push_back(Prop); | |||
1915 | return; | |||
1916 | } | |||
1917 | } | |||
1918 | // Scan through protocol's protocols which did not have a matching property. | |||
1919 | for (const auto *PI : PDecl->protocols()) | |||
1920 | PI->collectInheritedProtocolProperties(Property, PS, PO); | |||
1921 | } | |||
1922 | } | |||
1923 | ||||
1924 | StringRef | |||
1925 | ObjCProtocolDecl::getObjCRuntimeNameAsString() const { | |||
1926 | if (ObjCRuntimeNameAttr *ObjCRTName = getAttr<ObjCRuntimeNameAttr>()) | |||
1927 | return ObjCRTName->getMetadataName(); | |||
1928 | ||||
1929 | return getName(); | |||
1930 | } | |||
1931 | ||||
1932 | //===----------------------------------------------------------------------===// | |||
1933 | // ObjCCategoryDecl | |||
1934 | //===----------------------------------------------------------------------===// | |||
1935 | ||||
1936 | void ObjCCategoryDecl::anchor() {} | |||
1937 | ||||
1938 | ObjCCategoryDecl::ObjCCategoryDecl(DeclContext *DC, SourceLocation AtLoc, | |||
1939 | SourceLocation ClassNameLoc, | |||
1940 | SourceLocation CategoryNameLoc, | |||
1941 | IdentifierInfo *Id, ObjCInterfaceDecl *IDecl, | |||
1942 | ObjCTypeParamList *typeParamList, | |||
1943 | SourceLocation IvarLBraceLoc, | |||
1944 | SourceLocation IvarRBraceLoc) | |||
1945 | : ObjCContainerDecl(ObjCCategory, DC, Id, ClassNameLoc, AtLoc), | |||
1946 | ClassInterface(IDecl), CategoryNameLoc(CategoryNameLoc), | |||
1947 | IvarLBraceLoc(IvarLBraceLoc), IvarRBraceLoc(IvarRBraceLoc) { | |||
1948 | setTypeParamList(typeParamList); | |||
1949 | } | |||
1950 | ||||
1951 | ObjCCategoryDecl *ObjCCategoryDecl::Create(ASTContext &C, DeclContext *DC, | |||
1952 | SourceLocation AtLoc, | |||
1953 | SourceLocation ClassNameLoc, | |||
1954 | SourceLocation CategoryNameLoc, | |||
1955 | IdentifierInfo *Id, | |||
1956 | ObjCInterfaceDecl *IDecl, | |||
1957 | ObjCTypeParamList *typeParamList, | |||
1958 | SourceLocation IvarLBraceLoc, | |||
1959 | SourceLocation IvarRBraceLoc) { | |||
1960 | ObjCCategoryDecl *CatDecl = | |||
1961 | new (C, DC) ObjCCategoryDecl(DC, AtLoc, ClassNameLoc, CategoryNameLoc, Id, | |||
1962 | IDecl, typeParamList, IvarLBraceLoc, | |||
1963 | IvarRBraceLoc); | |||
1964 | if (IDecl) { | |||
1965 | // Link this category into its class's category list. | |||
1966 | CatDecl->NextClassCategory = IDecl->getCategoryListRaw(); | |||
1967 | if (IDecl->hasDefinition()) { | |||
1968 | IDecl->setCategoryListRaw(CatDecl); | |||
1969 | if (ASTMutationListener *L = C.getASTMutationListener()) | |||
1970 | L->AddedObjCCategoryToInterface(CatDecl, IDecl); | |||
1971 | } | |||
1972 | } | |||
1973 | ||||
1974 | return CatDecl; | |||
1975 | } | |||
1976 | ||||
1977 | ObjCCategoryDecl *ObjCCategoryDecl::CreateDeserialized(ASTContext &C, | |||
1978 | unsigned ID) { | |||
1979 | return new (C, ID) ObjCCategoryDecl(nullptr, SourceLocation(), | |||
1980 | SourceLocation(), SourceLocation(), | |||
1981 | nullptr, nullptr, nullptr); | |||
1982 | } | |||
1983 | ||||
1984 | ObjCCategoryImplDecl *ObjCCategoryDecl::getImplementation() const { | |||
1985 | return getASTContext().getObjCImplementation( | |||
1986 | const_cast<ObjCCategoryDecl*>(this)); | |||
1987 | } | |||
1988 | ||||
1989 | void ObjCCategoryDecl::setImplementation(ObjCCategoryImplDecl *ImplD) { | |||
1990 | getASTContext().setObjCImplementation(this, ImplD); | |||
1991 | } | |||
1992 | ||||
1993 | void ObjCCategoryDecl::setTypeParamList(ObjCTypeParamList *TPL) { | |||
1994 | TypeParamList = TPL; | |||
1995 | if (!TPL) | |||
1996 | return; | |||
1997 | // Set the declaration context of each of the type parameters. | |||
1998 | for (auto typeParam : *TypeParamList) | |||
1999 | typeParam->setDeclContext(this); | |||
2000 | } | |||
2001 | ||||
2002 | ||||
2003 | //===----------------------------------------------------------------------===// | |||
2004 | // ObjCCategoryImplDecl | |||
2005 | //===----------------------------------------------------------------------===// | |||
2006 | ||||
2007 | void ObjCCategoryImplDecl::anchor() {} | |||
2008 | ||||
2009 | ObjCCategoryImplDecl * | |||
2010 | ObjCCategoryImplDecl::Create(ASTContext &C, DeclContext *DC, | |||
2011 | IdentifierInfo *Id, | |||
2012 | ObjCInterfaceDecl *ClassInterface, | |||
2013 | SourceLocation nameLoc, | |||
2014 | SourceLocation atStartLoc, | |||
2015 | SourceLocation CategoryNameLoc) { | |||
2016 | if (ClassInterface && ClassInterface->hasDefinition()) | |||
2017 | ClassInterface = ClassInterface->getDefinition(); | |||
2018 | return new (C, DC) ObjCCategoryImplDecl(DC, Id, ClassInterface, nameLoc, | |||
2019 | atStartLoc, CategoryNameLoc); | |||
2020 | } | |||
2021 | ||||
2022 | ObjCCategoryImplDecl *ObjCCategoryImplDecl::CreateDeserialized(ASTContext &C, | |||
2023 | unsigned ID) { | |||
2024 | return new (C, ID) ObjCCategoryImplDecl(nullptr, nullptr, nullptr, | |||
2025 | SourceLocation(), SourceLocation(), | |||
2026 | SourceLocation()); | |||
2027 | } | |||
2028 | ||||
2029 | ObjCCategoryDecl *ObjCCategoryImplDecl::getCategoryDecl() const { | |||
2030 | // The class interface might be NULL if we are working with invalid code. | |||
2031 | if (const ObjCInterfaceDecl *ID = getClassInterface()) | |||
2032 | return ID->FindCategoryDeclaration(getIdentifier()); | |||
2033 | return nullptr; | |||
2034 | } | |||
2035 | ||||
2036 | void ObjCImplDecl::anchor() {} | |||
2037 | ||||
2038 | void ObjCImplDecl::addPropertyImplementation(ObjCPropertyImplDecl *property) { | |||
2039 | // FIXME: The context should be correct before we get here. | |||
2040 | property->setLexicalDeclContext(this); | |||
2041 | addDecl(property); | |||
2042 | } | |||
2043 | ||||
2044 | void ObjCImplDecl::setClassInterface(ObjCInterfaceDecl *IFace) { | |||
2045 | ASTContext &Ctx = getASTContext(); | |||
2046 | ||||
2047 | if (ObjCImplementationDecl *ImplD | |||
2048 | = dyn_cast_or_null<ObjCImplementationDecl>(this)) { | |||
2049 | if (IFace) | |||
2050 | Ctx.setObjCImplementation(IFace, ImplD); | |||
2051 | ||||
2052 | } else if (ObjCCategoryImplDecl *ImplD = | |||
2053 | dyn_cast_or_null<ObjCCategoryImplDecl>(this)) { | |||
2054 | if (ObjCCategoryDecl *CD = IFace->FindCategoryDeclaration(getIdentifier())) | |||
2055 | Ctx.setObjCImplementation(CD, ImplD); | |||
2056 | } | |||
2057 | ||||
2058 | ClassInterface = IFace; | |||
2059 | } | |||
2060 | ||||
2061 | /// FindPropertyImplIvarDecl - This method lookup the ivar in the list of | |||
2062 | /// properties implemented in this \@implementation block and returns | |||
2063 | /// the implemented property that uses it. | |||
2064 | ObjCPropertyImplDecl *ObjCImplDecl:: | |||
2065 | FindPropertyImplIvarDecl(IdentifierInfo *ivarId) const { | |||
2066 | for (auto *PID : property_impls()) | |||
2067 | if (PID->getPropertyIvarDecl() && | |||
2068 | PID->getPropertyIvarDecl()->getIdentifier() == ivarId) | |||
2069 | return PID; | |||
2070 | return nullptr; | |||
2071 | } | |||
2072 | ||||
2073 | /// FindPropertyImplDecl - This method looks up a previous ObjCPropertyImplDecl | |||
2074 | /// added to the list of those properties \@synthesized/\@dynamic in this | |||
2075 | /// category \@implementation block. | |||
2076 | ObjCPropertyImplDecl *ObjCImplDecl:: | |||
2077 | FindPropertyImplDecl(IdentifierInfo *Id, | |||
2078 | ObjCPropertyQueryKind QueryKind) const { | |||
2079 | ObjCPropertyImplDecl *ClassPropImpl = nullptr; | |||
2080 | for (auto *PID : property_impls()) | |||
2081 | // If queryKind is unknown, we return the instance property if one | |||
2082 | // exists; otherwise we return the class property. | |||
2083 | if (PID->getPropertyDecl()->getIdentifier() == Id) { | |||
2084 | if ((QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown && | |||
2085 | !PID->getPropertyDecl()->isClassProperty()) || | |||
2086 | (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_class && | |||
2087 | PID->getPropertyDecl()->isClassProperty()) || | |||
2088 | (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_instance && | |||
2089 | !PID->getPropertyDecl()->isClassProperty())) | |||
2090 | return PID; | |||
2091 | ||||
2092 | if (PID->getPropertyDecl()->isClassProperty()) | |||
2093 | ClassPropImpl = PID; | |||
2094 | } | |||
2095 | ||||
2096 | if (QueryKind == ObjCPropertyQueryKind::OBJC_PR_query_unknown) | |||
2097 | // We can't find the instance property, return the class property. | |||
2098 | return ClassPropImpl; | |||
2099 | ||||
2100 | return nullptr; | |||
2101 | } | |||
2102 | ||||
2103 | raw_ostream &clang::operator<<(raw_ostream &OS, | |||
2104 | const ObjCCategoryImplDecl &CID) { | |||
2105 | OS << CID.getName(); | |||
2106 | return OS; | |||
2107 | } | |||
2108 | ||||
2109 | //===----------------------------------------------------------------------===// | |||
2110 | // ObjCImplementationDecl | |||
2111 | //===----------------------------------------------------------------------===// | |||
2112 | ||||
2113 | void ObjCImplementationDecl::anchor() {} | |||
2114 | ||||
2115 | ObjCImplementationDecl * | |||
2116 | ObjCImplementationDecl::Create(ASTContext &C, DeclContext *DC, | |||
2117 | ObjCInterfaceDecl *ClassInterface, | |||
2118 | ObjCInterfaceDecl *SuperDecl, | |||
2119 | SourceLocation nameLoc, | |||
2120 | SourceLocation atStartLoc, | |||
2121 | SourceLocation superLoc, | |||
2122 | SourceLocation IvarLBraceLoc, | |||
2123 | SourceLocation IvarRBraceLoc) { | |||
2124 | if (ClassInterface && ClassInterface->hasDefinition()) | |||
2125 | ClassInterface = ClassInterface->getDefinition(); | |||
2126 | return new (C, DC) ObjCImplementationDecl(DC, ClassInterface, SuperDecl, | |||
2127 | nameLoc, atStartLoc, superLoc, | |||
2128 | IvarLBraceLoc, IvarRBraceLoc); | |||
2129 | } | |||
2130 | ||||
2131 | ObjCImplementationDecl * | |||
2132 | ObjCImplementationDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
2133 | return new (C, ID) ObjCImplementationDecl(nullptr, nullptr, nullptr, | |||
2134 | SourceLocation(), SourceLocation()); | |||
2135 | } | |||
2136 | ||||
2137 | void ObjCImplementationDecl::setIvarInitializers(ASTContext &C, | |||
2138 | CXXCtorInitializer ** initializers, | |||
2139 | unsigned numInitializers) { | |||
2140 | if (numInitializers > 0) { | |||
| ||||
2141 | NumIvarInitializers = numInitializers; | |||
2142 | CXXCtorInitializer **ivarInitializers = | |||
2143 | new (C) CXXCtorInitializer*[NumIvarInitializers]; | |||
2144 | memcpy(ivarInitializers, initializers, | |||
| ||||
2145 | numInitializers * sizeof(CXXCtorInitializer*)); | |||
2146 | IvarInitializers = ivarInitializers; | |||
2147 | } | |||
2148 | } | |||
2149 | ||||
2150 | ObjCImplementationDecl::init_const_iterator | |||
2151 | ObjCImplementationDecl::init_begin() const { | |||
2152 | return IvarInitializers.get(getASTContext().getExternalSource()); | |||
2153 | } | |||
2154 | ||||
2155 | raw_ostream &clang::operator<<(raw_ostream &OS, | |||
2156 | const ObjCImplementationDecl &ID) { | |||
2157 | OS << ID.getName(); | |||
2158 | return OS; | |||
2159 | } | |||
2160 | ||||
2161 | //===----------------------------------------------------------------------===// | |||
2162 | // ObjCCompatibleAliasDecl | |||
2163 | //===----------------------------------------------------------------------===// | |||
2164 | ||||
2165 | void ObjCCompatibleAliasDecl::anchor() {} | |||
2166 | ||||
2167 | ObjCCompatibleAliasDecl * | |||
2168 | ObjCCompatibleAliasDecl::Create(ASTContext &C, DeclContext *DC, | |||
2169 | SourceLocation L, | |||
2170 | IdentifierInfo *Id, | |||
2171 | ObjCInterfaceDecl* AliasedClass) { | |||
2172 | return new (C, DC) ObjCCompatibleAliasDecl(DC, L, Id, AliasedClass); | |||
2173 | } | |||
2174 | ||||
2175 | ObjCCompatibleAliasDecl * | |||
2176 | ObjCCompatibleAliasDecl::CreateDeserialized(ASTContext &C, unsigned ID) { | |||
2177 | return new (C, ID) ObjCCompatibleAliasDecl(nullptr, SourceLocation(), | |||
2178 | nullptr, nullptr); | |||
2179 | } | |||
2180 | ||||
2181 | //===----------------------------------------------------------------------===// | |||
2182 | // ObjCPropertyDecl | |||
2183 | //===----------------------------------------------------------------------===// | |||
2184 | ||||
2185 | void ObjCPropertyDecl::anchor() {} | |||
2186 | ||||
2187 | ObjCPropertyDecl *ObjCPropertyDecl::Create(ASTContext &C, DeclContext *DC, | |||
2188 | SourceLocation L, | |||
2189 | IdentifierInfo *Id, | |||
2190 | SourceLocation AtLoc, | |||
2191 | SourceLocation LParenLoc, | |||
2192 | QualType T, | |||
2193 | TypeSourceInfo *TSI, | |||
2194 | PropertyControl propControl) { | |||
2195 | return new (C, DC) ObjCPropertyDecl(DC, L, Id, AtLoc, LParenLoc, T, TSI, | |||
2196 | propControl); | |||
2197 | } | |||
2198 | ||||
2199 | ObjCPropertyDecl *ObjCPropertyDecl::CreateDeserialized(ASTContext &C, | |||
2200 | unsigned ID) { | |||
2201 | return new (C, ID) ObjCPropertyDecl(nullptr, SourceLocation(), nullptr, | |||
2202 | SourceLocation(), SourceLocation(), | |||
2203 | QualType(), nullptr, None); | |||
2204 | } | |||
2205 | ||||
2206 | QualType ObjCPropertyDecl::getUsageType(QualType objectType) const { | |||
2207 | return DeclType.substObjCMemberType(objectType, getDeclContext(), | |||
2208 | ObjCSubstitutionContext::Property); | |||
2209 | } | |||
2210 | ||||
2211 | //===----------------------------------------------------------------------===// | |||
2212 | // ObjCPropertyImplDecl | |||
2213 | //===----------------------------------------------------------------------===// | |||
2214 | ||||
2215 | ObjCPropertyImplDecl *ObjCPropertyImplDecl::Create(ASTContext &C, | |||
2216 | DeclContext *DC, | |||
2217 | SourceLocation atLoc, | |||
2218 | SourceLocation L, | |||
2219 | ObjCPropertyDecl *property, | |||
2220 | Kind PK, | |||
2221 | ObjCIvarDecl *ivar, | |||
2222 | SourceLocation ivarLoc) { | |||
2223 | return new (C, DC) ObjCPropertyImplDecl(DC, atLoc, L, property, PK, ivar, | |||
2224 | ivarLoc); | |||
2225 | } | |||
2226 | ||||
2227 | ObjCPropertyImplDecl *ObjCPropertyImplDecl::CreateDeserialized(ASTContext &C, | |||
2228 | unsigned ID) { | |||
2229 | return new (C, ID) ObjCPropertyImplDecl(nullptr, SourceLocation(), | |||
2230 | SourceLocation(), nullptr, Dynamic, | |||
2231 | nullptr, SourceLocation()); | |||
2232 | } | |||
2233 | ||||
2234 | SourceRange ObjCPropertyImplDecl::getSourceRange() const { | |||
2235 | SourceLocation EndLoc = getLocation(); | |||
2236 | if (IvarLoc.isValid()) | |||
2237 | EndLoc = IvarLoc; | |||
2238 | ||||
2239 | return SourceRange(AtLoc, EndLoc); | |||
2240 | } |