SemaObjCProperty.cpp revision b892d7010f9c2c61e2f3a2686546cbfbffbedef3
19d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek//===--- SemaObjCProperty.cpp - Semantic Analysis for ObjC @property ------===// 29d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// 39d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// The LLVM Compiler Infrastructure 49d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// 59d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// This file is distributed under the University of Illinois Open Source 69d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// License. See LICENSE.TXT for details. 79d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// 89d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek//===----------------------------------------------------------------------===// 99d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// 109d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// This file implements semantic analysis for Objective C @property and 119d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// @synthesize declarations. 129d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek// 139d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek//===----------------------------------------------------------------------===// 149d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 152d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 1655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/ASTMutationListener.h" 177cd088e519d7e6caa4c4c12db52e0e4ae35d25c2John McCall#include "clang/AST/DeclObjC.h" 1857e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian#include "clang/AST/ExprCXX.h" 1955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/ExprObjC.h" 20edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian#include "clang/Basic/SourceManager.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Lex/Lexer.h" 2255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Lex/Preprocessor.h" 2355fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Initialization.h" 2450df6ae41f232612e5e88b19e0db9900d08d2f6cJohn McCall#include "llvm/ADT/DenseSet.h" 258fe83e1df954d72c0f4ffc15d20a5222ec151c21Benjamin Kramer#include "llvm/ADT/SmallString.h" 269d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 279d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekusing namespace clang; 289d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 2928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek//===----------------------------------------------------------------------===// 3028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek// Grammar actions. 3128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek//===----------------------------------------------------------------------===// 3228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 33265941bc308d65cc270d5c4de5806f37ce405606John McCall/// getImpliedARCOwnership - Given a set of property attributes and a 34265941bc308d65cc270d5c4de5806f37ce405606John McCall/// type, infer an expected lifetime. The type's ownership qualification 35265941bc308d65cc270d5c4de5806f37ce405606John McCall/// is not considered. 36265941bc308d65cc270d5c4de5806f37ce405606John McCall/// 37265941bc308d65cc270d5c4de5806f37ce405606John McCall/// Returns OCL_None if the attributes as stated do not imply an ownership. 38265941bc308d65cc270d5c4de5806f37ce405606John McCall/// Never returns OCL_Autoreleasing. 39265941bc308d65cc270d5c4de5806f37ce405606John McCallstatic Qualifiers::ObjCLifetime getImpliedARCOwnership( 40265941bc308d65cc270d5c4de5806f37ce405606John McCall ObjCPropertyDecl::PropertyAttributeKind attrs, 41265941bc308d65cc270d5c4de5806f37ce405606John McCall QualType type) { 42265941bc308d65cc270d5c4de5806f37ce405606John McCall // retain, strong, copy, weak, and unsafe_unretained are only legal 43265941bc308d65cc270d5c4de5806f37ce405606John McCall // on properties of retainable pointer type. 44265941bc308d65cc270d5c4de5806f37ce405606John McCall if (attrs & (ObjCPropertyDecl::OBJC_PR_retain | 45265941bc308d65cc270d5c4de5806f37ce405606John McCall ObjCPropertyDecl::OBJC_PR_strong | 46265941bc308d65cc270d5c4de5806f37ce405606John McCall ObjCPropertyDecl::OBJC_PR_copy)) { 47d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall return Qualifiers::OCL_Strong; 48265941bc308d65cc270d5c4de5806f37ce405606John McCall } else if (attrs & ObjCPropertyDecl::OBJC_PR_weak) { 49265941bc308d65cc270d5c4de5806f37ce405606John McCall return Qualifiers::OCL_Weak; 50265941bc308d65cc270d5c4de5806f37ce405606John McCall } else if (attrs & ObjCPropertyDecl::OBJC_PR_unsafe_unretained) { 51265941bc308d65cc270d5c4de5806f37ce405606John McCall return Qualifiers::OCL_ExplicitNone; 52265941bc308d65cc270d5c4de5806f37ce405606John McCall } 53265941bc308d65cc270d5c4de5806f37ce405606John McCall 54265941bc308d65cc270d5c4de5806f37ce405606John McCall // assign can appear on other types, so we have to check the 55265941bc308d65cc270d5c4de5806f37ce405606John McCall // property type. 56265941bc308d65cc270d5c4de5806f37ce405606John McCall if (attrs & ObjCPropertyDecl::OBJC_PR_assign && 57265941bc308d65cc270d5c4de5806f37ce405606John McCall type->isObjCRetainableType()) { 58265941bc308d65cc270d5c4de5806f37ce405606John McCall return Qualifiers::OCL_ExplicitNone; 59265941bc308d65cc270d5c4de5806f37ce405606John McCall } 60265941bc308d65cc270d5c4de5806f37ce405606John McCall 61265941bc308d65cc270d5c4de5806f37ce405606John McCall return Qualifiers::OCL_None; 62265941bc308d65cc270d5c4de5806f37ce405606John McCall} 63265941bc308d65cc270d5c4de5806f37ce405606John McCall 64f85e193739c953358c865005855253af4f68a497John McCall/// Check the internal consistency of a property declaration. 65f85e193739c953358c865005855253af4f68a497John McCallstatic void checkARCPropertyDecl(Sema &S, ObjCPropertyDecl *property) { 66f85e193739c953358c865005855253af4f68a497John McCall if (property->isInvalidDecl()) return; 67f85e193739c953358c865005855253af4f68a497John McCall 68f85e193739c953358c865005855253af4f68a497John McCall ObjCPropertyDecl::PropertyAttributeKind propertyKind 69f85e193739c953358c865005855253af4f68a497John McCall = property->getPropertyAttributes(); 70f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime propertyLifetime 71f85e193739c953358c865005855253af4f68a497John McCall = property->getType().getObjCLifetime(); 72f85e193739c953358c865005855253af4f68a497John McCall 73f85e193739c953358c865005855253af4f68a497John McCall // Nothing to do if we don't have a lifetime. 74f85e193739c953358c865005855253af4f68a497John McCall if (propertyLifetime == Qualifiers::OCL_None) return; 75f85e193739c953358c865005855253af4f68a497John McCall 76265941bc308d65cc270d5c4de5806f37ce405606John McCall Qualifiers::ObjCLifetime expectedLifetime 77265941bc308d65cc270d5c4de5806f37ce405606John McCall = getImpliedARCOwnership(propertyKind, property->getType()); 78265941bc308d65cc270d5c4de5806f37ce405606John McCall if (!expectedLifetime) { 79f85e193739c953358c865005855253af4f68a497John McCall // We have a lifetime qualifier but no dominating property 80265941bc308d65cc270d5c4de5806f37ce405606John McCall // attribute. That's okay, but restore reasonable invariants by 81265941bc308d65cc270d5c4de5806f37ce405606John McCall // setting the property attribute according to the lifetime 82265941bc308d65cc270d5c4de5806f37ce405606John McCall // qualifier. 83265941bc308d65cc270d5c4de5806f37ce405606John McCall ObjCPropertyDecl::PropertyAttributeKind attr; 84265941bc308d65cc270d5c4de5806f37ce405606John McCall if (propertyLifetime == Qualifiers::OCL_Strong) { 85265941bc308d65cc270d5c4de5806f37ce405606John McCall attr = ObjCPropertyDecl::OBJC_PR_strong; 86265941bc308d65cc270d5c4de5806f37ce405606John McCall } else if (propertyLifetime == Qualifiers::OCL_Weak) { 87265941bc308d65cc270d5c4de5806f37ce405606John McCall attr = ObjCPropertyDecl::OBJC_PR_weak; 88265941bc308d65cc270d5c4de5806f37ce405606John McCall } else { 89265941bc308d65cc270d5c4de5806f37ce405606John McCall assert(propertyLifetime == Qualifiers::OCL_ExplicitNone); 90265941bc308d65cc270d5c4de5806f37ce405606John McCall attr = ObjCPropertyDecl::OBJC_PR_unsafe_unretained; 91265941bc308d65cc270d5c4de5806f37ce405606John McCall } 92265941bc308d65cc270d5c4de5806f37ce405606John McCall property->setPropertyAttributes(attr); 93f85e193739c953358c865005855253af4f68a497John McCall return; 94f85e193739c953358c865005855253af4f68a497John McCall } 95f85e193739c953358c865005855253af4f68a497John McCall 96f85e193739c953358c865005855253af4f68a497John McCall if (propertyLifetime == expectedLifetime) return; 97f85e193739c953358c865005855253af4f68a497John McCall 98f85e193739c953358c865005855253af4f68a497John McCall property->setInvalidDecl(); 99f85e193739c953358c865005855253af4f68a497John McCall S.Diag(property->getLocation(), 100b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis diag::err_arc_inconsistent_property_ownership) 101f85e193739c953358c865005855253af4f68a497John McCall << property->getDeclName() 102265941bc308d65cc270d5c4de5806f37ce405606John McCall << expectedLifetime 103f85e193739c953358c865005855253af4f68a497John McCall << propertyLifetime; 104f85e193739c953358c865005855253af4f68a497John McCall} 105f85e193739c953358c865005855253af4f68a497John McCall 106dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanianstatic unsigned deduceWeakPropertyFromType(Sema &S, QualType T) { 107dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian if ((S.getLangOpts().getGC() != LangOptions::NonGC && 108dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian T.isObjCGCWeak()) || 109dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian (S.getLangOpts().ObjCAutoRefCount && 110dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian T.getObjCLifetime() == Qualifiers::OCL_Weak)) 111dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian return ObjCDeclSpec::DQ_PR_weak; 112dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian return 0; 113dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian} 114dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian 115b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor/// \brief Check this Objective-C property against a property declared in the 116b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor/// given protocol. 117b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregorstatic void 118b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas GregorCheckPropertyAgainstProtocol(Sema &S, ObjCPropertyDecl *Prop, 119b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor ObjCProtocolDecl *Proto, 120b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor llvm::SmallPtrSet<ObjCProtocolDecl *, 16> &Known) { 121b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor // Have we seen this protocol before? 122b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor if (!Known.insert(Proto)) 123b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor return; 124b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor 125b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor // Look for a property with the same name. 126b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor DeclContext::lookup_result R = Proto->lookup(Prop->getDeclName()); 127b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (unsigned I = 0, N = R.size(); I != N; ++I) { 128b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor if (ObjCPropertyDecl *ProtoProp = dyn_cast<ObjCPropertyDecl>(R[I])) { 129b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor S.DiagnosePropertyMismatch(Prop, ProtoProp, Proto->getIdentifier()); 130b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor return; 131b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 132b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 133b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor 134b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor // Check this property against any protocols we inherit. 135b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 136b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor PEnd = Proto->protocol_end(); 137b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor P != PEnd; ++P) { 138b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor CheckPropertyAgainstProtocol(S, Prop, *P, Known); 139b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 140b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor} 141b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor 142d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Sema::ActOnProperty(Scope *S, SourceLocation AtLoc, 14377bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceLocation LParenLoc, 144d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall FieldDeclarator &FD, 145d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ObjCDeclSpec &ODS, 146d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Selector GetterSel, 147d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Selector SetterSel, 148d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall bool *isOverridingProperty, 1494a2e9ea0c191176ebe996516a9cf4f93b7e932ccTed Kremenek tok::ObjCKeywordKind MethodImplKind, 1504a2e9ea0c191176ebe996516a9cf4f93b7e932ccTed Kremenek DeclContext *lexicalDC) { 151ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling unsigned Attributes = ODS.getPropertyAttributes(); 152f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSI = GetTypeForDeclarator(FD.D, S); 153f85e193739c953358c865005855253af4f68a497John McCall QualType T = TSI->getType(); 154ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes |= deduceWeakPropertyFromType(*this, T); 155dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian 156ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling bool isReadWrite = ((Attributes & ObjCDeclSpec::DQ_PR_readwrite) || 15728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // default is readwrite! 158ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_readonly)); 15928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // property is defaulted to 'assign' if it is readwrite and is 16028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // not retain or copy 161ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling bool isAssign = ((Attributes & ObjCDeclSpec::DQ_PR_assign) || 16228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek (isReadWrite && 163ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_retain) && 164ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_strong) && 165ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_copy) && 166ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) && 167ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_weak))); 16814086764e340267e17803d0f8243070ffae2c76eFariborz Jahanian 169aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor // Proceed with constructing the ObjCPropertyDecls. 170a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian ObjCContainerDecl *ClassDecl = cast<ObjCContainerDecl>(CurContext); 171aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor ObjCPropertyDecl *Res = 0; 172aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor if (ObjCCategoryDecl *CDecl = dyn_cast<ObjCCategoryDecl>(ClassDecl)) { 173ae415dc21ee6402cee1675ec8bb965a24f9e5b6bFariborz Jahanian if (CDecl->IsClassExtension()) { 174aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor Res = HandlePropertyInClassExtension(S, AtLoc, LParenLoc, 175ae415dc21ee6402cee1675ec8bb965a24f9e5b6bFariborz Jahanian FD, GetterSel, SetterSel, 176ae415dc21ee6402cee1675ec8bb965a24f9e5b6bFariborz Jahanian isAssign, isReadWrite, 177ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes, 178dbbdec994f5a96b5c25aaa679cd86ecabf545f7bArgyrios Kyrtzidis ODS.getPropertyAttributes(), 179ae415dc21ee6402cee1675ec8bb965a24f9e5b6bFariborz Jahanian isOverridingProperty, TSI, 180ae415dc21ee6402cee1675ec8bb965a24f9e5b6bFariborz Jahanian MethodImplKind); 181aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor if (!Res) 182aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor return 0; 183ae415dc21ee6402cee1675ec8bb965a24f9e5b6bFariborz Jahanian } 184aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor } 185aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor 186aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor if (!Res) { 187aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor Res = CreatePropertyDecl(S, ClassDecl, AtLoc, LParenLoc, FD, 188aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor GetterSel, SetterSel, isAssign, isReadWrite, 189aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor Attributes, ODS.getPropertyAttributes(), 190aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor TSI, MethodImplKind); 191aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor if (lexicalDC) 192aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor Res->setLexicalDeclContext(lexicalDC); 193aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor } 1944a2e9ea0c191176ebe996516a9cf4f93b7e932ccTed Kremenek 195842f07b065ac481fce9d82d55cb62e36bac6c921Fariborz Jahanian // Validate the attributes on the @property. 196ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling CheckObjCPropertyAttributes(Res, AtLoc, Attributes, 197cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian (isa<ObjCInterfaceDecl>(ClassDecl) || 198cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian isa<ObjCProtocolDecl>(ClassDecl))); 199f85e193739c953358c865005855253af4f68a497John McCall 2004e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 201f85e193739c953358c865005855253af4f68a497John McCall checkARCPropertyDecl(*this, Res); 202f85e193739c953358c865005855253af4f68a497John McCall 203b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor llvm::SmallPtrSet<ObjCProtocolDecl *, 16> KnownProtos; 204aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor if (ObjCInterfaceDecl *IFace = dyn_cast<ObjCInterfaceDecl>(ClassDecl)) { 205b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor // For a class, compare the property against a property in our superclass. 206b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor bool FoundInSuper = false; 207aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor if (ObjCInterfaceDecl *Super = IFace->getSuperClass()) { 208aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor DeclContext::lookup_result R = Super->lookup(Res->getDeclName()); 209b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (unsigned I = 0, N = R.size(); I != N; ++I) { 210b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor if (ObjCPropertyDecl *SuperProp = dyn_cast<ObjCPropertyDecl>(R[I])) { 211aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor DiagnosePropertyMismatch(Res, SuperProp, Super->getIdentifier()); 212b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor FoundInSuper = true; 213b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor break; 214b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 215b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 216b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 217b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor 218b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor if (FoundInSuper) { 219b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor // Also compare the property against a property in our protocols. 220b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (ObjCInterfaceDecl::protocol_iterator P = IFace->protocol_begin(), 221b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor PEnd = IFace->protocol_end(); 222b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor P != PEnd; ++P) { 223b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor CheckPropertyAgainstProtocol(*this, Res, *P, KnownProtos); 224b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 225b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } else { 226b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor // Slower path: look in all protocols we referenced. 227b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (ObjCInterfaceDecl::all_protocol_iterator 228b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor P = IFace->all_referenced_protocol_begin(), 229b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor PEnd = IFace->all_referenced_protocol_end(); 230b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor P != PEnd; ++P) { 231b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor CheckPropertyAgainstProtocol(*this, Res, *P, KnownProtos); 232b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 233b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 234b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } else if (ObjCCategoryDecl *Cat = dyn_cast<ObjCCategoryDecl>(ClassDecl)) { 235b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (ObjCCategoryDecl::protocol_iterator P = Cat->protocol_begin(), 236b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor PEnd = Cat->protocol_end(); 237b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor P != PEnd; ++P) { 238b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor CheckPropertyAgainstProtocol(*this, Res, *P, KnownProtos); 239b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } 240b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor } else { 241b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor ObjCProtocolDecl *Proto = cast<ObjCProtocolDecl>(ClassDecl); 242b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor for (ObjCProtocolDecl::protocol_iterator P = Proto->protocol_begin(), 243b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor PEnd = Proto->protocol_end(); 244b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor P != PEnd; ++P) { 245b892d7010f9c2c61e2f3a2686546cbfbffbedef3Douglas Gregor CheckPropertyAgainstProtocol(*this, Res, *P, KnownProtos); 246aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor } 247aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor } 248aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor 249abd56c816e9164b17bb3e7154a511b0c9896ffdbDmitri Gribenko ActOnDocumentableDecl(Res); 250842f07b065ac481fce9d82d55cb62e36bac6c921Fariborz Jahanian return Res; 251e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek} 252e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 253b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidisstatic ObjCPropertyDecl::PropertyAttributeKind 254ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill WendlingmakePropertyAttributesAsWritten(unsigned Attributes) { 255b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis unsigned attributesAsWritten = 0; 256ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_readonly) 257b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_readonly; 258ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_readwrite) 259b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_readwrite; 260ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_getter) 261b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_getter; 262ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_setter) 263b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_setter; 264ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_assign) 265b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_assign; 266ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_retain) 267b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_retain; 268ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_strong) 269b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_strong; 270ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_weak) 271b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_weak; 272ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_copy) 273b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_copy; 274ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) 275b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_unsafe_unretained; 276ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_nonatomic) 277b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_nonatomic; 278ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_atomic) 279b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis attributesAsWritten |= ObjCPropertyDecl::OBJC_PR_atomic; 280b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis 281b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis return (ObjCPropertyDecl::PropertyAttributeKind)attributesAsWritten; 282b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis} 283b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis 2845bf0e3522fac400cf7bf49a775554f0fc942b336Fariborz Jahanianstatic bool LocPropertyAttribute( ASTContext &Context, const char *attrName, 285edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian SourceLocation LParenLoc, SourceLocation &Loc) { 286edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian if (LParenLoc.isMacroID()) 287edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian return false; 288edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian 289edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian SourceManager &SM = Context.getSourceManager(); 290edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian std::pair<FileID, unsigned> locInfo = SM.getDecomposedLoc(LParenLoc); 291edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian // Try to load the file buffer. 292edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian bool invalidTemp = false; 293edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian StringRef file = SM.getBufferData(locInfo.first, &invalidTemp); 294edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian if (invalidTemp) 295edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian return false; 296edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian const char *tokenBegin = file.data() + locInfo.second; 297edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian 298edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian // Lex from the start of the given location. 299edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian Lexer lexer(SM.getLocForStartOfFile(locInfo.first), 300edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian Context.getLangOpts(), 301edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian file.begin(), tokenBegin, file.end()); 302edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian Token Tok; 303edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian do { 304edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian lexer.LexFromRawLexer(Tok); 305edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian if (Tok.is(tok::raw_identifier) && 306edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian StringRef(Tok.getRawIdentifierData(), Tok.getLength()) == attrName) { 307edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian Loc = Tok.getLocation(); 308edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian return true; 309edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian } 310edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian } while (Tok.isNot(tok::r_paren)); 311edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian return false; 312edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian 3132b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian} 3142b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian 315d9f95b35dc4fc168a167a9b9b61a5f9e1d0462baFariborz Jahanianstatic unsigned getOwnershipRule(unsigned attr) { 316dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian return attr & (ObjCPropertyDecl::OBJC_PR_assign | 317dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian ObjCPropertyDecl::OBJC_PR_retain | 318dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian ObjCPropertyDecl::OBJC_PR_copy | 319dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian ObjCPropertyDecl::OBJC_PR_weak | 320dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian ObjCPropertyDecl::OBJC_PR_strong | 321dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian ObjCPropertyDecl::OBJC_PR_unsafe_unretained); 322dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian} 323dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian 324aabd094cf694039fe823987e133af7ac25cb9711Douglas GregorObjCPropertyDecl * 325a28948f34817476d02412fa204cae038e228c827Fariborz JahanianSema::HandlePropertyInClassExtension(Scope *S, 32677bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceLocation AtLoc, 32777bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceLocation LParenLoc, 32877bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian FieldDeclarator &FD, 329e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Selector GetterSel, Selector SetterSel, 330e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek const bool isAssign, 331e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek const bool isReadWrite, 332ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling const unsigned Attributes, 333dbbdec994f5a96b5c25aaa679cd86ecabf545f7bArgyrios Kyrtzidis const unsigned AttributesAsWritten, 334e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek bool *isOverridingProperty, 33583a230c83a54190366138c1a4f4310ef838b88fcJohn McCall TypeSourceInfo *T, 336e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek tok::ObjCKeywordKind MethodImplKind) { 33758a764940df0cd41767367eb2f4fced6f374176bFariborz Jahanian ObjCCategoryDecl *CDecl = cast<ObjCCategoryDecl>(CurContext); 338e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // Diagnose if this property is already in continuation class. 339a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian DeclContext *DC = CurContext; 340e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek IdentifierInfo *PropertyId = FD.D.getIdentifier(); 3412a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian ObjCInterfaceDecl *CCPrimary = CDecl->getClassInterface(); 3422a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian 343d329724745b49f894b768d47275b7c2713106e89Douglas Gregor if (CCPrimary) { 3442a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian // Check for duplicate declaration of this property in current and 3452a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian // other class extensions. 346d329724745b49f894b768d47275b7c2713106e89Douglas Gregor for (ObjCInterfaceDecl::known_extensions_iterator 347d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Ext = CCPrimary->known_extensions_begin(), 348d329724745b49f894b768d47275b7c2713106e89Douglas Gregor ExtEnd = CCPrimary->known_extensions_end(); 349d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Ext != ExtEnd; ++Ext) { 350d329724745b49f894b768d47275b7c2713106e89Douglas Gregor if (ObjCPropertyDecl *prevDecl 351d329724745b49f894b768d47275b7c2713106e89Douglas Gregor = ObjCPropertyDecl::findPropertyDecl(*Ext, PropertyId)) { 3522a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian Diag(AtLoc, diag::err_duplicate_property); 3532a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian Diag(prevDecl->getLocation(), diag::note_property_declare); 3542a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian return 0; 3552a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian } 3562a2891410b02d146b779cdb29eeb9b6d1a9fa030Fariborz Jahanian } 357d329724745b49f894b768d47275b7c2713106e89Douglas Gregor } 358d329724745b49f894b768d47275b7c2713106e89Douglas Gregor 359e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // Create a new ObjCPropertyDecl with the DeclContext being 360e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // the class extension. 36188f5e9be350f4b107f8665183a6d441874e0fcc7Fariborz Jahanian // FIXME. We should really be using CreatePropertyDecl for this. 362e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek ObjCPropertyDecl *PDecl = 363e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek ObjCPropertyDecl::Create(Context, DC, FD.D.getIdentifierLoc(), 36477bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian PropertyId, AtLoc, LParenLoc, T); 365b98ffded10453d80369951f33f3892f35d747c95Argyrios Kyrtzidis PDecl->setPropertyAttributesAsWritten( 366dbbdec994f5a96b5c25aaa679cd86ecabf545f7bArgyrios Kyrtzidis makePropertyAttributesAsWritten(AttributesAsWritten)); 367ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_readonly) 36822f757b38da3fc9f17ea9e99524064fdfbca3456Fariborz Jahanian PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_readonly); 369ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_readwrite) 37022f757b38da3fc9f17ea9e99524064fdfbca3456Fariborz Jahanian PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_readwrite); 37188f5e9be350f4b107f8665183a6d441874e0fcc7Fariborz Jahanian // Set setter/getter selector name. Needed later. 37288f5e9be350f4b107f8665183a6d441874e0fcc7Fariborz Jahanian PDecl->setGetterName(GetterSel); 37388f5e9be350f4b107f8665183a6d441874e0fcc7Fariborz Jahanian PDecl->setSetterName(SetterSel); 37491ae6b43b3a294243698cdb544dd7a18efa4c7a8Douglas Gregor ProcessDeclAttributes(S, PDecl, FD.D); 375e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek DC->addDecl(PDecl); 376e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 377e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // We need to look in the @interface to see if the @property was 378e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // already declared. 379e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek if (!CCPrimary) { 380e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Diag(CDecl->getLocation(), diag::err_continuation_class); 381e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek *isOverridingProperty = true; 382d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 383e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek } 384e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 385e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // Find the property in continuation class's primary class only. 386e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek ObjCPropertyDecl *PIDecl = 387e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek CCPrimary->FindPropertyVisibleInPrimaryClass(PropertyId); 388e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 389e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek if (!PIDecl) { 390e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // No matching property found in the primary class. Just fall thru 391e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // and add property to continuation class's primary class. 392d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis ObjCPropertyDecl *PrimaryPDecl = 39377bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian CreatePropertyDecl(S, CCPrimary, AtLoc, LParenLoc, 394e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek FD, GetterSel, SetterSel, isAssign, isReadWrite, 395ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes,AttributesAsWritten, T, MethodImplKind, DC); 396e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 397e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // A case of continuation class adding a new property in the class. This 398e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // is not what it was meant for. However, gcc supports it and so should we. 399e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // Make sure setter/getters are declared here. 400d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis ProcessPropertyDecl(PrimaryPDecl, CCPrimary, /* redeclaredProperty = */ 0, 401a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek /* lexicalDC = */ CDecl); 402d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis PDecl->setGetterMethodDecl(PrimaryPDecl->getGetterMethodDecl()); 403d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis PDecl->setSetterMethodDecl(PrimaryPDecl->getSetterMethodDecl()); 404c80553efdc269dabd4ed0c3210555f45729ab5ddArgyrios Kyrtzidis if (ASTMutationListener *L = Context.getASTMutationListener()) 405d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis L->AddedObjCPropertyInClassExtension(PrimaryPDecl, /*OrigProp=*/0, CDecl); 406d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis return PrimaryPDecl; 407e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek } 408e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian if (!Context.hasSameType(PIDecl->getType(), PDecl->getType())) { 409e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian bool IncompatibleObjC = false; 410e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian QualType ConvertedType; 411ff2a0ecae1d7692dbb63aa540dba41a8c21d7ee4Fariborz Jahanian // Relax the strict type matching for property type in continuation class. 412ff2a0ecae1d7692dbb63aa540dba41a8c21d7ee4Fariborz Jahanian // Allow property object type of continuation class to be different as long 413ad7eff2faf517779689327dc268817c2c2c8ebc4Fariborz Jahanian // as it narrows the object type in its primary class property. Note that 414ad7eff2faf517779689327dc268817c2c2c8ebc4Fariborz Jahanian // this conversion is safe only because the wider type is for a 'readonly' 415ad7eff2faf517779689327dc268817c2c2c8ebc4Fariborz Jahanian // property in primary class and 'narrowed' type for a 'readwrite' property 416ad7eff2faf517779689327dc268817c2c2c8ebc4Fariborz Jahanian // in continuation class. 417e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian if (!isa<ObjCObjectPointerType>(PIDecl->getType()) || 418e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian !isa<ObjCObjectPointerType>(PDecl->getType()) || 419e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian (!isObjCPointerConversion(PDecl->getType(), PIDecl->getType(), 420e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian ConvertedType, IncompatibleObjC)) 421e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian || IncompatibleObjC) { 422e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian Diag(AtLoc, 423e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian diag::err_type_mismatch_continuation_class) << PDecl->getType(); 424e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian Diag(PIDecl->getLocation(), diag::note_property_declare); 4256defd9f31eec51278d056f1bff885018e2321373Fariborz Jahanian return 0; 426e23518342e326e3d6e9139f05384f030e2a94d4aFariborz Jahanian } 427a4b984d8396724a8e1137c22186c558c0cb0bf3fFariborz Jahanian } 428a4b984d8396724a8e1137c22186c558c0cb0bf3fFariborz Jahanian 429e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // The property 'PIDecl's readonly attribute will be over-ridden 430e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // with continuation class's readwrite property attribute! 43180aa1cd7973561889e51c1c152c8990a8de9c953Fariborz Jahanian unsigned PIkind = PIDecl->getPropertyAttributesAsWritten(); 432e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek if (isReadWrite && (PIkind & ObjCPropertyDecl::OBJC_PR_readonly)) { 433dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian PIkind |= deduceWeakPropertyFromType(*this, PIDecl->getType()); 434ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling unsigned ClassExtensionMemoryModel = getOwnershipRule(Attributes); 435d9f95b35dc4fc168a167a9b9b61a5f9e1d0462baFariborz Jahanian unsigned PrimaryClassMemoryModel = getOwnershipRule(PIkind); 436dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian if (PrimaryClassMemoryModel && ClassExtensionMemoryModel && 437dad633b0a0955ceb4579e9508224562ad41b6a8dFariborz Jahanian (PrimaryClassMemoryModel != ClassExtensionMemoryModel)) { 438e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Diag(AtLoc, diag::warn_property_attr_mismatch); 439e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Diag(PIDecl->getLocation(), diag::note_property_declare); 440e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek } 4419944c769b69b1904a7b16d3ce10fbdc9c67c764fTed Kremenek DeclContext *DC = cast<DeclContext>(CCPrimary); 4429944c769b69b1904a7b16d3ce10fbdc9c67c764fTed Kremenek if (!ObjCPropertyDecl::findPropertyDecl(DC, 4439944c769b69b1904a7b16d3ce10fbdc9c67c764fTed Kremenek PIDecl->getDeclName().getAsIdentifierInfo())) { 444e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // Protocol is not in the primary class. Must build one for it. 445e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek ObjCDeclSpec ProtocolPropertyODS; 446e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // FIXME. Assuming that ObjCDeclSpec::ObjCPropertyAttributeKind 447e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // and ObjCPropertyDecl::PropertyAttributeKind have identical 448e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // values. Should consolidate both into one enum type. 449e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek ProtocolPropertyODS. 450e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek setPropertyAttributes((ObjCDeclSpec::ObjCPropertyAttributeKind) 451e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIkind); 452a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian // Must re-establish the context from class extension to primary 453a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian // class context. 4547939418cbdf1b610a69e6adf29cd7dc8d0e9eaf8Fariborz Jahanian ContextRAII SavedContext(*this, CCPrimary); 4557939418cbdf1b610a69e6adf29cd7dc8d0e9eaf8Fariborz Jahanian 456d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ProtocolPtrTy = 45777bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian ActOnProperty(S, AtLoc, LParenLoc, FD, ProtocolPropertyODS, 458e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIDecl->getGetterName(), 459e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIDecl->getSetterName(), 460a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian isOverridingProperty, 4614a2e9ea0c191176ebe996516a9cf4f93b7e932ccTed Kremenek MethodImplKind, 4624a2e9ea0c191176ebe996516a9cf4f93b7e932ccTed Kremenek /* lexicalDC = */ CDecl); 463d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall PIDecl = cast<ObjCPropertyDecl>(ProtocolPtrTy); 46428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 465e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIDecl->makeitReadWriteAttribute(); 466ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_retain) 467e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_retain); 468ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_strong) 469f85e193739c953358c865005855253af4f68a497John McCall PIDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_strong); 470ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_copy) 471e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_copy); 472e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek PIDecl->setSetterName(SetterSel); 473e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek } else { 474788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek // Tailor the diagnostics for the common case where a readwrite 475788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek // property is declared both in the @interface and the continuation. 476788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek // This is a common error where the user often intended the original 477788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek // declaration to be readonly. 478788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek unsigned diag = 479ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_readwrite) && 480788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek (PIkind & ObjCPropertyDecl::OBJC_PR_readwrite) 481788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek ? diag::err_use_continuation_class_redeclaration_readwrite 482788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek : diag::err_use_continuation_class; 483788f489a37bf1150deb9378cec6a6eb902d0d1b2Ted Kremenek Diag(AtLoc, diag) 484e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek << CCPrimary->getDeclName(); 485e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Diag(PIDecl->getLocation(), diag::note_property_declare); 4866defd9f31eec51278d056f1bff885018e2321373Fariborz Jahanian return 0; 487e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek } 488e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek *isOverridingProperty = true; 489e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek // Make sure setter decl is synthesized, and added to primary class's list. 4908254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek ProcessPropertyDecl(PIDecl, CCPrimary, PDecl, CDecl); 491d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis PDecl->setGetterMethodDecl(PIDecl->getGetterMethodDecl()); 492d7c15a64ba8ebdca0dd48dd1d2f233107d34494eArgyrios Kyrtzidis PDecl->setSetterMethodDecl(PIDecl->getSetterMethodDecl()); 493c80553efdc269dabd4ed0c3210555f45729ab5ddArgyrios Kyrtzidis if (ASTMutationListener *L = Context.getASTMutationListener()) 494c80553efdc269dabd4ed0c3210555f45729ab5ddArgyrios Kyrtzidis L->AddedObjCPropertyInClassExtension(PDecl, PIDecl, CDecl); 4956defd9f31eec51278d056f1bff885018e2321373Fariborz Jahanian return PDecl; 496e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek} 497e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 498e3d67bcc7b89b335dbcd097a299658057ea31097Ted KremenekObjCPropertyDecl *Sema::CreatePropertyDecl(Scope *S, 499e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek ObjCContainerDecl *CDecl, 500e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek SourceLocation AtLoc, 50177bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceLocation LParenLoc, 502e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek FieldDeclarator &FD, 503e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Selector GetterSel, 504e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek Selector SetterSel, 505e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek const bool isAssign, 506e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek const bool isReadWrite, 507ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling const unsigned Attributes, 508dbbdec994f5a96b5c25aaa679cd86ecabf545f7bArgyrios Kyrtzidis const unsigned AttributesAsWritten, 50983a230c83a54190366138c1a4f4310ef838b88fcJohn McCall TypeSourceInfo *TInfo, 51023173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek tok::ObjCKeywordKind MethodImplKind, 51123173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek DeclContext *lexicalDC){ 512e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek IdentifierInfo *PropertyId = FD.D.getIdentifier(); 51383a230c83a54190366138c1a4f4310ef838b88fcJohn McCall QualType T = TInfo->getType(); 51428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 51528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Issue a warning if property is 'assign' as default and its object, which is 51628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // gc'able conforms to NSCopying protocol 5174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().getGC() != LangOptions::NonGC && 518ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling isAssign && !(Attributes & ObjCDeclSpec::DQ_PR_assign)) 519c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectPointerType *ObjPtrTy = 520c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T->getAs<ObjCObjectPointerType>()) { 521c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall ObjCInterfaceDecl *IDecl = ObjPtrTy->getObjectType()->getInterface(); 522c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (IDecl) 523c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjCProtocolDecl* PNSCopying = 524c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall LookupProtocol(&Context.Idents.get("NSCopying"), AtLoc)) 525c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (IDecl->ClassImplementsProtocol(PNSCopying, true)) 526c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Diag(AtLoc, diag::warn_implements_nscopying) << PropertyId; 52728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 528c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (T->isObjCObjectType()) 52928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(FD.D.getIdentifierLoc(), diag::err_statically_allocated_object); 53028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 531e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek DeclContext *DC = cast<DeclContext>(CDecl); 53228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCPropertyDecl *PDecl = ObjCPropertyDecl::Create(Context, DC, 53328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek FD.D.getIdentifierLoc(), 53477bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian PropertyId, AtLoc, LParenLoc, TInfo); 535e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek 5369f550ff05d496e6b9480e5619a21d9da0c9e27c1Ted Kremenek if (ObjCPropertyDecl *prevDecl = 5379f550ff05d496e6b9480e5619a21d9da0c9e27c1Ted Kremenek ObjCPropertyDecl::findPropertyDecl(DC, PropertyId)) { 53828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PDecl->getLocation(), diag::err_duplicate_property); 539894ae6ad081465a3b168db7e60ab3f94e3730b57Ted Kremenek Diag(prevDecl->getLocation(), diag::note_property_declare); 54028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setInvalidDecl(); 54128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 54223173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek else { 54328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek DC->addDecl(PDecl); 54423173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek if (lexicalDC) 54523173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek PDecl->setLexicalDeclContext(lexicalDC); 54623173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek } 54728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 54828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (T->isArrayType() || T->isFunctionType()) { 54928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(AtLoc, diag::err_property_type) << T; 55028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setInvalidDecl(); 55128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 55228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 55328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ProcessDeclAttributes(S, PDecl, FD.D); 55428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 55528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Regardless of setter/getter attribute, we save the default getter/setter 55628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // selector names in anticipation of declaration of setter/getter methods. 55728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setGetterName(GetterSel); 55828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setSetterName(SetterSel); 5590a68dc7f04be1542ce249ff4adb169453698ad91Argyrios Kyrtzidis PDecl->setPropertyAttributesAsWritten( 560dbbdec994f5a96b5c25aaa679cd86ecabf545f7bArgyrios Kyrtzidis makePropertyAttributesAsWritten(AttributesAsWritten)); 5610a68dc7f04be1542ce249ff4adb169453698ad91Argyrios Kyrtzidis 562ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_readonly) 56328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_readonly); 56428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 565ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_getter) 56628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_getter); 56728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 568ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_setter) 56928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_setter); 57028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 57128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (isReadWrite) 57228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_readwrite); 57328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 574ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_retain) 57528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_retain); 57628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 577ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_strong) 578f85e193739c953358c865005855253af4f68a497John McCall PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_strong); 579f85e193739c953358c865005855253af4f68a497John McCall 580ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_weak) 581f85e193739c953358c865005855253af4f68a497John McCall PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_weak); 582f85e193739c953358c865005855253af4f68a497John McCall 583ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_copy) 58428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_copy); 58528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 586ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) 587f85e193739c953358c865005855253af4f68a497John McCall PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_unsafe_unretained); 588f85e193739c953358c865005855253af4f68a497John McCall 58928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (isAssign) 59028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_assign); 59128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 592265941bc308d65cc270d5c4de5806f37ce405606John McCall // In the semantic attributes, one of nonatomic or atomic is always set. 593ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_nonatomic) 59428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_nonatomic); 595265941bc308d65cc270d5c4de5806f37ce405606John McCall else 59645937ae10a0f70f74508165aab4f2b63e18ea747Fariborz Jahanian PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_atomic); 59728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 598f85e193739c953358c865005855253af4f68a497John McCall // 'unsafe_unretained' is alias for 'assign'. 599ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) 600f85e193739c953358c865005855253af4f68a497John McCall PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_assign); 601f85e193739c953358c865005855253af4f68a497John McCall if (isAssign) 602f85e193739c953358c865005855253af4f68a497John McCall PDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_unsafe_unretained); 603f85e193739c953358c865005855253af4f68a497John McCall 60428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (MethodImplKind == tok::objc_required) 60528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyImplementation(ObjCPropertyDecl::Required); 60628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek else if (MethodImplKind == tok::objc_optional) 60728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PDecl->setPropertyImplementation(ObjCPropertyDecl::Optional); 60828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 609e3d67bcc7b89b335dbcd097a299658057ea31097Ted Kremenek return PDecl; 61028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek} 61128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 612f85e193739c953358c865005855253af4f68a497John McCallstatic void checkARCPropertyImpl(Sema &S, SourceLocation propertyImplLoc, 613f85e193739c953358c865005855253af4f68a497John McCall ObjCPropertyDecl *property, 614f85e193739c953358c865005855253af4f68a497John McCall ObjCIvarDecl *ivar) { 615f85e193739c953358c865005855253af4f68a497John McCall if (property->isInvalidDecl() || ivar->isInvalidDecl()) return; 616f85e193739c953358c865005855253af4f68a497John McCall 617f85e193739c953358c865005855253af4f68a497John McCall QualType ivarType = ivar->getType(); 618f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime ivarLifetime = ivarType.getObjCLifetime(); 619f85e193739c953358c865005855253af4f68a497John McCall 620265941bc308d65cc270d5c4de5806f37ce405606John McCall // The lifetime implied by the property's attributes. 621265941bc308d65cc270d5c4de5806f37ce405606John McCall Qualifiers::ObjCLifetime propertyLifetime = 622265941bc308d65cc270d5c4de5806f37ce405606John McCall getImpliedARCOwnership(property->getPropertyAttributes(), 623265941bc308d65cc270d5c4de5806f37ce405606John McCall property->getType()); 624f85e193739c953358c865005855253af4f68a497John McCall 625265941bc308d65cc270d5c4de5806f37ce405606John McCall // We're fine if they match. 626265941bc308d65cc270d5c4de5806f37ce405606John McCall if (propertyLifetime == ivarLifetime) return; 627f85e193739c953358c865005855253af4f68a497John McCall 628265941bc308d65cc270d5c4de5806f37ce405606John McCall // These aren't valid lifetimes for object ivars; don't diagnose twice. 629265941bc308d65cc270d5c4de5806f37ce405606John McCall if (ivarLifetime == Qualifiers::OCL_None || 630265941bc308d65cc270d5c4de5806f37ce405606John McCall ivarLifetime == Qualifiers::OCL_Autoreleasing) 631265941bc308d65cc270d5c4de5806f37ce405606John McCall return; 632265941bc308d65cc270d5c4de5806f37ce405606John McCall 633d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall // If the ivar is private, and it's implicitly __unsafe_unretained 634d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall // becaues of its type, then pretend it was actually implicitly 635d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall // __strong. This is only sound because we're processing the 636d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall // property implementation before parsing any method bodies. 637d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall if (ivarLifetime == Qualifiers::OCL_ExplicitNone && 638d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall propertyLifetime == Qualifiers::OCL_Strong && 639d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall ivar->getAccessControl() == ObjCIvarDecl::Private) { 640d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall SplitQualType split = ivarType.split(); 641d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall if (split.Quals.hasObjCLifetime()) { 642d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall assert(ivarType->isObjCARCImplicitlyUnretainedType()); 643d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall split.Quals.setObjCLifetime(Qualifiers::OCL_Strong); 644d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall ivarType = S.Context.getQualifiedType(split); 645d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall ivar->setType(ivarType); 646d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall return; 647d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall } 648d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall } 649d64c2eb83d7ec86faa4f2554935a977a19573f59John McCall 650265941bc308d65cc270d5c4de5806f37ce405606John McCall switch (propertyLifetime) { 651265941bc308d65cc270d5c4de5806f37ce405606John McCall case Qualifiers::OCL_Strong: 652135aa60c613bdcc0e8e237b12bf93cab04284419Argyrios Kyrtzidis S.Diag(ivar->getLocation(), diag::err_arc_strong_property_ownership) 653265941bc308d65cc270d5c4de5806f37ce405606John McCall << property->getDeclName() 654265941bc308d65cc270d5c4de5806f37ce405606John McCall << ivar->getDeclName() 655265941bc308d65cc270d5c4de5806f37ce405606John McCall << ivarLifetime; 656265941bc308d65cc270d5c4de5806f37ce405606John McCall break; 657265941bc308d65cc270d5c4de5806f37ce405606John McCall 658265941bc308d65cc270d5c4de5806f37ce405606John McCall case Qualifiers::OCL_Weak: 659135aa60c613bdcc0e8e237b12bf93cab04284419Argyrios Kyrtzidis S.Diag(ivar->getLocation(), diag::error_weak_property) 660265941bc308d65cc270d5c4de5806f37ce405606John McCall << property->getDeclName() 661265941bc308d65cc270d5c4de5806f37ce405606John McCall << ivar->getDeclName(); 662265941bc308d65cc270d5c4de5806f37ce405606John McCall break; 663265941bc308d65cc270d5c4de5806f37ce405606John McCall 664265941bc308d65cc270d5c4de5806f37ce405606John McCall case Qualifiers::OCL_ExplicitNone: 665135aa60c613bdcc0e8e237b12bf93cab04284419Argyrios Kyrtzidis S.Diag(ivar->getLocation(), diag::err_arc_assign_property_ownership) 666265941bc308d65cc270d5c4de5806f37ce405606John McCall << property->getDeclName() 667265941bc308d65cc270d5c4de5806f37ce405606John McCall << ivar->getDeclName() 668265941bc308d65cc270d5c4de5806f37ce405606John McCall << ((property->getPropertyAttributesAsWritten() 669265941bc308d65cc270d5c4de5806f37ce405606John McCall & ObjCPropertyDecl::OBJC_PR_assign) != 0); 670265941bc308d65cc270d5c4de5806f37ce405606John McCall break; 671265941bc308d65cc270d5c4de5806f37ce405606John McCall 672265941bc308d65cc270d5c4de5806f37ce405606John McCall case Qualifiers::OCL_Autoreleasing: 673265941bc308d65cc270d5c4de5806f37ce405606John McCall llvm_unreachable("properties cannot be autoreleasing"); 674265941bc308d65cc270d5c4de5806f37ce405606John McCall 675265941bc308d65cc270d5c4de5806f37ce405606John McCall case Qualifiers::OCL_None: 676265941bc308d65cc270d5c4de5806f37ce405606John McCall // Any other property should be ignored. 677f85e193739c953358c865005855253af4f68a497John McCall return; 678f85e193739c953358c865005855253af4f68a497John McCall } 679f85e193739c953358c865005855253af4f68a497John McCall 680f85e193739c953358c865005855253af4f68a497John McCall S.Diag(property->getLocation(), diag::note_property_declare); 681135aa60c613bdcc0e8e237b12bf93cab04284419Argyrios Kyrtzidis if (propertyImplLoc.isValid()) 682135aa60c613bdcc0e8e237b12bf93cab04284419Argyrios Kyrtzidis S.Diag(propertyImplLoc, diag::note_property_synthesize); 683f85e193739c953358c865005855253af4f68a497John McCall} 684f85e193739c953358c865005855253af4f68a497John McCall 685015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian/// setImpliedPropertyAttributeForReadOnlyProperty - 686015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian/// This routine evaludates life-time attributes for a 'readonly' 687015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian/// property with no known lifetime of its own, using backing 688015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian/// 'ivar's attribute, if any. If no backing 'ivar', property's 689015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian/// life-time is assumed 'strong'. 690015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanianstatic void setImpliedPropertyAttributeForReadOnlyProperty( 691015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCPropertyDecl *property, ObjCIvarDecl *ivar) { 692015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian Qualifiers::ObjCLifetime propertyLifetime = 693015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian getImpliedARCOwnership(property->getPropertyAttributes(), 694015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian property->getType()); 695015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian if (propertyLifetime != Qualifiers::OCL_None) 696015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian return; 697015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian 698015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian if (!ivar) { 699015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian // if no backing ivar, make property 'strong'. 700015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian property->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_strong); 701015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian return; 702015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian } 703015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian // property assumes owenership of backing ivar. 704015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian QualType ivarType = ivar->getType(); 705015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian Qualifiers::ObjCLifetime ivarLifetime = ivarType.getObjCLifetime(); 706015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian if (ivarLifetime == Qualifiers::OCL_Strong) 707015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian property->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_strong); 708015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian else if (ivarLifetime == Qualifiers::OCL_Weak) 709015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian property->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_weak); 710015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian return; 711015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian} 71228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 713cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian/// DiagnoseClassAndClassExtPropertyMismatch - diagnose inconsistant property 714cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian/// attribute declared in primary class and attributes overridden in any of its 715cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian/// class extensions. 716cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanianstatic void 717cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz JahanianDiagnoseClassAndClassExtPropertyMismatch(Sema &S, ObjCInterfaceDecl *ClassDecl, 718cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ObjCPropertyDecl *property) { 719ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling unsigned Attributes = property->getPropertyAttributesAsWritten(); 720ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling bool warn = (Attributes & ObjCDeclSpec::DQ_PR_readonly); 721d329724745b49f894b768d47275b7c2713106e89Douglas Gregor for (ObjCInterfaceDecl::known_extensions_iterator 722d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Ext = ClassDecl->known_extensions_begin(), 723d329724745b49f894b768d47275b7c2713106e89Douglas Gregor ExtEnd = ClassDecl->known_extensions_end(); 724d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Ext != ExtEnd; ++Ext) { 725cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ObjCPropertyDecl *ClassExtProperty = 0; 7260dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor DeclContext::lookup_result R = Ext->lookup(property->getDeclName()); 7270dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor for (unsigned I = 0, N = R.size(); I != N; ++I) { 7280dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor ClassExtProperty = dyn_cast<ObjCPropertyDecl>(R[0]); 7290dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (ClassExtProperty) 730cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian break; 731cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 7320dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor 733cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian if (ClassExtProperty) { 734c78ff27813288b30ee566477705353ae660fd577Fariborz Jahanian warn = false; 735cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian unsigned classExtPropertyAttr = 736cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ClassExtProperty->getPropertyAttributesAsWritten(); 737cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // We are issuing the warning that we postponed because class extensions 738cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // can override readonly->readwrite and 'setter' attributes originally 739cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // placed on class's property declaration now make sense in the overridden 740cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // property. 741ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_readonly) { 742cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian if (!classExtPropertyAttr || 743a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian (classExtPropertyAttr & 744a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian (ObjCDeclSpec::DQ_PR_readwrite| 745a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian ObjCDeclSpec::DQ_PR_assign | 746a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian ObjCDeclSpec::DQ_PR_unsafe_unretained | 747a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian ObjCDeclSpec::DQ_PR_copy | 748a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian ObjCDeclSpec::DQ_PR_retain | 749a6e28f27c668775e3927b9c0be0a17636fed16fcFariborz Jahanian ObjCDeclSpec::DQ_PR_strong))) 750cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian continue; 751cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian warn = true; 752cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian break; 753cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 754cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 755cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 756cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian if (warn) { 757cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian unsigned setterAttrs = (ObjCDeclSpec::DQ_PR_assign | 758cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ObjCDeclSpec::DQ_PR_unsafe_unretained | 759cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ObjCDeclSpec::DQ_PR_copy | 760cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ObjCDeclSpec::DQ_PR_retain | 761cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian ObjCDeclSpec::DQ_PR_strong); 762ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & setterAttrs) { 763cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian const char * which = 764ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_assign) ? 765cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian "assign" : 766ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) ? 767cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian "unsafe_unretained" : 768ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_copy) ? 769cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian "copy" : 770ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_retain) ? 771cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian "retain" : "strong"; 772cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian 773cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian S.Diag(property->getLocation(), 774cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian diag::warn_objc_property_attr_mutually_exclusive) 775cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian << "readonly" << which; 776cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 777cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 778cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian 779cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian 780cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian} 781cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian 78228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek/// ActOnPropertyImplDecl - This routine performs semantic checks and 78328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek/// builds the AST node for a property implementation declaration; declared 784699c9044c7d53a2774d0dd261a6901dd2c4a545fJames Dennett/// as \@synthesize or \@dynamic. 78528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek/// 786d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Sema::ActOnPropertyImplDecl(Scope *S, 787d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SourceLocation AtLoc, 788d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SourceLocation PropertyLoc, 789d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall bool Synthesize, 790d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall IdentifierInfo *PropertyId, 791a4ffd85a6684e42f900aad5459e58ad91bb88755Douglas Gregor IdentifierInfo *PropertyIvar, 792a4ffd85a6684e42f900aad5459e58ad91bb88755Douglas Gregor SourceLocation PropertyIvarLoc) { 793e9686572f17968048a5e097254f85c202ea44aecTed Kremenek ObjCContainerDecl *ClassImpDecl = 79484e0ccff7a6e51d7b81fd58686b493a4880dd44dFariborz Jahanian dyn_cast<ObjCContainerDecl>(CurContext); 79528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Make sure we have a context for the property implementation declaration. 79628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!ClassImpDecl) { 79728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(AtLoc, diag::error_missing_property_context); 798d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 79928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 800f911242f43ae1b0a85c323631fe817df95c9cbe9Argyrios Kyrtzidis if (PropertyIvarLoc.isInvalid()) 801f911242f43ae1b0a85c323631fe817df95c9cbe9Argyrios Kyrtzidis PropertyIvarLoc = PropertyLoc; 802e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman SourceLocation PropertyDiagLoc = PropertyLoc; 803e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman if (PropertyDiagLoc.isInvalid()) 804e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman PropertyDiagLoc = ClassImpDecl->getLocStart(); 80528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCPropertyDecl *property = 0; 80628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCInterfaceDecl* IDecl = 0; 80728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Find the class or category class where this property must have 80828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // a declaration. 80928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCImplementationDecl *IC = 0; 81028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCCategoryImplDecl* CatImplClass = 0; 81128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if ((IC = dyn_cast<ObjCImplementationDecl>(ClassImpDecl))) { 81228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek IDecl = IC->getClassInterface(); 81328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // We always synthesize an interface for an implementation 81428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // without an interface decl. So, IDecl is always non-zero. 81528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek assert(IDecl && 81628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek "ActOnPropertyImplDecl - @implementation without @interface"); 81728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 81828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Look for this property declaration in the @implementation's @interface 81928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek property = IDecl->FindPropertyDeclaration(PropertyId); 82028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!property) { 82128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PropertyLoc, diag::error_bad_property_decl) << IDecl->getDeclName(); 822d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 82328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 824dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian unsigned PIkind = property->getPropertyAttributesAsWritten(); 82545937ae10a0f70f74508165aab4f2b63e18ea747Fariborz Jahanian if ((PIkind & (ObjCPropertyDecl::OBJC_PR_atomic | 82645937ae10a0f70f74508165aab4f2b63e18ea747Fariborz Jahanian ObjCPropertyDecl::OBJC_PR_nonatomic) ) == 0) { 827dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian if (AtLoc.isValid()) 828dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian Diag(AtLoc, diag::warn_implicit_atomic_property); 829dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian else 830dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian Diag(IC->getLocation(), diag::warn_auto_implicit_atomic_property); 831dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian Diag(property->getLocation(), diag::note_property_declare); 832dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian } 833dd4430e596fac34e9ce44228a249f71e73effd4aFariborz Jahanian 83428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (const ObjCCategoryDecl *CD = 83528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek dyn_cast<ObjCCategoryDecl>(property->getDeclContext())) { 83628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!CD->IsClassExtension()) { 83728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PropertyLoc, diag::error_category_property) << CD->getDeclName(); 83828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(property->getLocation(), diag::note_property_declare); 839d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 84028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 84128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 8422b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian 8432b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian if (Synthesize&& 8442b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian (PIkind & ObjCPropertyDecl::OBJC_PR_readonly) && 8452b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian property->hasAttr<IBOutletAttr>() && 8462b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian !AtLoc.isValid()) { 8472b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian Diag(IC->getLocation(), diag::warn_auto_readonly_iboutlet_property); 8482b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian Diag(property->getLocation(), diag::note_property_declare); 849edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian SourceLocation readonlyLoc; 8505bf0e3522fac400cf7bf49a775554f0fc942b336Fariborz Jahanian if (LocPropertyAttribute(Context, "readonly", 851edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian property->getLParenLoc(), readonlyLoc)) { 852edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian SourceLocation endLoc = 853edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian readonlyLoc.getLocWithOffset(strlen("readonly")-1); 854edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian SourceRange ReadonlySourceRange(readonlyLoc, endLoc); 855edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian Diag(property->getLocation(), 856edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian diag::note_auto_readonly_iboutlet_fixup_suggest) << 857edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian FixItHint::CreateReplacement(ReadonlySourceRange, "readwrite"); 858edcc27f6171fd8cc736d057d87b128252fcb7344Fariborz Jahanian } 8592b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian } 860cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian 861cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian DiagnoseClassAndClassExtPropertyMismatch(*this, IDecl, property); 8622b309fb125906b1fb10efb1890860cd042fbfab3Fariborz Jahanian 86328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } else if ((CatImplClass = dyn_cast<ObjCCategoryImplDecl>(ClassImpDecl))) { 86428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (Synthesize) { 86528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(AtLoc, diag::error_synthesize_category_decl); 866d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 86728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 86828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek IDecl = CatImplClass->getClassInterface(); 86928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!IDecl) { 87028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(AtLoc, diag::error_missing_property_interface); 871d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 87228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 87328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCCategoryDecl *Category = 87428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek IDecl->FindCategoryDeclaration(CatImplClass->getIdentifier()); 87528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 87628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // If category for this implementation not found, it is an error which 87728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // has already been reported eralier. 87828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!Category) 879d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 88028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Look for this property declaration in @implementation's category 88128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek property = Category->FindPropertyDeclaration(PropertyId); 88228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!property) { 88328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PropertyLoc, diag::error_bad_category_property_decl) 88428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << Category->getDeclName(); 885d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 88628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 88728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } else { 88828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(AtLoc, diag::error_bad_property_context); 889d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 89028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 89128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCIvarDecl *Ivar = 0; 892e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman bool CompleteTypeErr = false; 893744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian bool compat = true; 89428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Check that we have a valid, previously declared ivar for @synthesize 89528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (Synthesize) { 89628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // @synthesize 89728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (!PropertyIvar) 89828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PropertyIvar = PropertyId; 899015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian // Check that this is a previously declared 'ivar' in 'IDecl' interface 900015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared; 901015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian Ivar = IDecl->lookupInstanceVariable(PropertyIvar, ClassDeclared); 902265941bc308d65cc270d5c4de5806f37ce405606John McCall QualType PropType = property->getType(); 903265941bc308d65cc270d5c4de5806f37ce405606John McCall QualType PropertyIvarType = PropType.getNonReferenceType(); 904e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman 905e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman if (RequireCompleteType(PropertyDiagLoc, PropertyIvarType, 906d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_incomplete_synthesized_property, 907d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor property->getDeclName())) { 908e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(property->getLocation(), diag::note_property_declare); 909e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman CompleteTypeErr = true; 910e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman } 911e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman 9124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount && 913015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian (property->getPropertyAttributesAsWritten() & 9143efd348d3586b22bb0153f17181128a1b3c41140Fariborz Jahanian ObjCPropertyDecl::OBJC_PR_readonly) && 9153efd348d3586b22bb0153f17181128a1b3c41140Fariborz Jahanian PropertyIvarType->isObjCRetainableType()) { 916015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian setImpliedPropertyAttributeForReadOnlyProperty(property, Ivar); 917015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian } 918015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian 919015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCPropertyDecl::PropertyAttributeKind kind 920015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian = property->getPropertyAttributes(); 921265941bc308d65cc270d5c4de5806f37ce405606John McCall 922265941bc308d65cc270d5c4de5806f37ce405606John McCall // Add GC __weak to the ivar type if the property is weak. 923265941bc308d65cc270d5c4de5806f37ce405606John McCall if ((kind & ObjCPropertyDecl::OBJC_PR_weak) && 9244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().getGC() != LangOptions::NonGC) { 9254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(!getLangOpts().ObjCAutoRefCount); 926265941bc308d65cc270d5c4de5806f37ce405606John McCall if (PropertyIvarType.isObjCGCStrong()) { 927e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::err_gc_weak_property_strong_type); 928265941bc308d65cc270d5c4de5806f37ce405606John McCall Diag(property->getLocation(), diag::note_property_declare); 929265941bc308d65cc270d5c4de5806f37ce405606John McCall } else { 930265941bc308d65cc270d5c4de5806f37ce405606John McCall PropertyIvarType = 931265941bc308d65cc270d5c4de5806f37ce405606John McCall Context.getObjCGCQualType(PropertyIvarType, Qualifiers::Weak); 932edc08821d3f73514291b339db29aca1a17485e39Fariborz Jahanian } 933edc08821d3f73514291b339db29aca1a17485e39Fariborz Jahanian } 934e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian if (AtLoc.isInvalid()) { 935e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian // Check when default synthesizing a property that there is 936e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian // an ivar matching property name and issue warning; since this 937e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian // is the most common case of not using an ivar used for backing 938e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian // property in non-default synthesis case. 939e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared=0; 940e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian ObjCIvarDecl *originalIvar = 941e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian IDecl->lookupInstanceVariable(property->getIdentifier(), 942e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian ClassDeclared); 943e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian if (originalIvar) { 944e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian Diag(PropertyDiagLoc, 945e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian diag::warn_autosynthesis_property_ivar_match) 9462578532c7323efdd68ec42a31b7bdf72e5218867Fariborz Jahanian << PropertyId << (Ivar == 0) << PropertyIvar 94720e7d992140cc6bc94f2e65f3638346527150756Fariborz Jahanian << originalIvar->getIdentifier(); 948e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian Diag(property->getLocation(), diag::note_property_declare); 949e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian Diag(originalIvar->getLocation(), diag::note_ivar_decl); 950dd3284b17829adfd542ecf4a7b4423dce1d7502bFariborz Jahanian } 951e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian } 952e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian 953e95f8ef6563bdf26de5294873733a3425c09db42Fariborz Jahanian if (!Ivar) { 954265941bc308d65cc270d5c4de5806f37ce405606John McCall // In ARC, give the ivar a lifetime qualifier based on the 955f85e193739c953358c865005855253af4f68a497John McCall // property attributes. 9564e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount && 957265941bc308d65cc270d5c4de5806f37ce405606John McCall !PropertyIvarType.getObjCLifetime() && 958265941bc308d65cc270d5c4de5806f37ce405606John McCall PropertyIvarType->isObjCRetainableType()) { 959f85e193739c953358c865005855253af4f68a497John McCall 960265941bc308d65cc270d5c4de5806f37ce405606John McCall // It's an error if we have to do this and the user didn't 961265941bc308d65cc270d5c4de5806f37ce405606John McCall // explicitly write an ownership attribute on the property. 962473506bd9dfd84944c2c5ca2c2a38814f46febc6Argyrios Kyrtzidis if (!property->hasWrittenStorageAttribute() && 963265941bc308d65cc270d5c4de5806f37ce405606John McCall !(kind & ObjCPropertyDecl::OBJC_PR_strong)) { 964e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, 965473506bd9dfd84944c2c5ca2c2a38814f46febc6Argyrios Kyrtzidis diag::err_arc_objc_property_default_assign_on_object); 966473506bd9dfd84944c2c5ca2c2a38814f46febc6Argyrios Kyrtzidis Diag(property->getLocation(), diag::note_property_declare); 967265941bc308d65cc270d5c4de5806f37ce405606John McCall } else { 968265941bc308d65cc270d5c4de5806f37ce405606John McCall Qualifiers::ObjCLifetime lifetime = 969265941bc308d65cc270d5c4de5806f37ce405606John McCall getImpliedARCOwnership(kind, PropertyIvarType); 970265941bc308d65cc270d5c4de5806f37ce405606John McCall assert(lifetime && "no lifetime for property?"); 9716dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 9726dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian bool err = false; 9736dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian if (const ObjCObjectPointerType *ObjT = 974a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith PropertyIvarType->getAs<ObjCObjectPointerType>()) { 975a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith const ObjCInterfaceDecl *ObjI = ObjT->getInterfaceDecl(); 976a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith if (ObjI && ObjI->isArcWeakrefUnavailable()) { 977e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::err_arc_weak_unavailable_property); 9786dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian Diag(property->getLocation(), diag::note_property_declare); 9796dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian err = true; 9806dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian } 981a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith } 9820a7dd788dbef975f35f273c7ab913f480f7edd60John McCall if (!err && !getLangOpts().ObjCARCWeak) { 983e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::err_arc_weak_no_runtime); 9846dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian Diag(property->getLocation(), diag::note_property_declare); 9856dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian } 986f85e193739c953358c865005855253af4f68a497John McCall } 9876dce88d9f71cd4be18554af94145a9147b363199Fariborz Jahanian 988f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 989265941bc308d65cc270d5c4de5806f37ce405606John McCall qs.addObjCLifetime(lifetime); 990f85e193739c953358c865005855253af4f68a497John McCall PropertyIvarType = Context.getQualifiedType(PropertyIvarType, qs); 991f85e193739c953358c865005855253af4f68a497John McCall } 992f85e193739c953358c865005855253af4f68a497John McCall } 993f85e193739c953358c865005855253af4f68a497John McCall 994f85e193739c953358c865005855253af4f68a497John McCall if (kind & ObjCPropertyDecl::OBJC_PR_weak && 9954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie !getLangOpts().ObjCAutoRefCount && 9964e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().getGC() == LangOptions::NonGC) { 997e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_synthesize_weak_non_arc_or_gc); 998f85e193739c953358c865005855253af4f68a497John McCall Diag(property->getLocation(), diag::note_property_declare); 999f85e193739c953358c865005855253af4f68a497John McCall } 1000f85e193739c953358c865005855253af4f68a497John McCall 1001ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara Ivar = ObjCIvarDecl::Create(Context, ClassImpDecl, 1002f911242f43ae1b0a85c323631fe817df95c9cbe9Argyrios Kyrtzidis PropertyIvarLoc,PropertyIvarLoc, PropertyIvar, 100314086764e340267e17803d0f8243070ffae2c76eFariborz Jahanian PropertyIvarType, /*Dinfo=*/0, 10047504966cc0d07eac26baabec80a7406695efb307Fariborz Jahanian ObjCIvarDecl::Private, 1005ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian (Expr *)0, true); 1006e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman if (CompleteTypeErr) 1007e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Ivar->setInvalidDecl(); 100829fa69addf8b19871e7866c32c92b5d142c4bfbcDaniel Dunbar ClassImpDecl->addDecl(Ivar); 10091b7f9cbed1b96b58a6e5f7808ebc9345a76a0936Richard Smith IDecl->makeDeclVisibleInContext(Ivar); 101028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 1011260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (getLangOpts().ObjCRuntime.isFragile()) 1012e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_missing_property_ivar_decl) 1013e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman << PropertyId; 101428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Note! I deliberately want it to fall thru so, we have a 101528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // a property implementation and to avoid future warnings. 1016260611a32535c851237926bfcf78869b13c07d5bJohn McCall } else if (getLangOpts().ObjCRuntime.isNonFragile() && 101760ef308e51c71b760d7f598c1b763ceb7b768148Douglas Gregor !declaresSameEntity(ClassDeclared, IDecl)) { 1018e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_ivar_in_superclass_use) 101928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << property->getDeclName() << Ivar->getDeclName() 102028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << ClassDeclared->getDeclName(); 102128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(Ivar->getLocation(), diag::note_previous_access_declaration) 10224087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar << Ivar << Ivar->getName(); 102328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Note! I deliberately want it to fall thru so more errors are caught. 102428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 10255bf5c2ec54ede5352293e5739e9b44bea2f6b01bAnna Zaks property->setPropertyIvarDecl(Ivar); 10265bf5c2ec54ede5352293e5739e9b44bea2f6b01bAnna Zaks 102728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek QualType IvarType = Context.getCanonicalType(Ivar->getType()); 102828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 102928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Check that type of property and its ivar are type compatible. 1030744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian if (!Context.hasSameType(PropertyIvarType, IvarType)) { 103114086764e340267e17803d0f8243070ffae2c76eFariborz Jahanian if (isa<ObjCObjectPointerType>(PropertyIvarType) 1032f85e193739c953358c865005855253af4f68a497John McCall && isa<ObjCObjectPointerType>(IvarType)) 1033b3cd3c0c8a234803dcb9b9c0dfe10106674141cdRichard Smith compat = 103462ac5d01aade35790a6d8e814edb21062da5d3f7Fariborz Jahanian Context.canAssignObjCInterfaces( 103514086764e340267e17803d0f8243070ffae2c76eFariborz Jahanian PropertyIvarType->getAs<ObjCObjectPointerType>(), 103662ac5d01aade35790a6d8e814edb21062da5d3f7Fariborz Jahanian IvarType->getAs<ObjCObjectPointerType>()); 1037b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor else { 1038f911242f43ae1b0a85c323631fe817df95c9cbe9Argyrios Kyrtzidis compat = (CheckAssignmentConstraints(PropertyIvarLoc, PropertyIvarType, 1039f911242f43ae1b0a85c323631fe817df95c9cbe9Argyrios Kyrtzidis IvarType) 1040daa8e4e888758d55a7a759dd4a91b83921cef222John McCall == Compatible); 1041b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor } 104262ac5d01aade35790a6d8e814edb21062da5d3f7Fariborz Jahanian if (!compat) { 1043e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_property_ivar_type) 1044f921a4868cf1876636f6684e7f68697b18c0cb47Ted Kremenek << property->getDeclName() << PropType 1045f921a4868cf1876636f6684e7f68697b18c0cb47Ted Kremenek << Ivar->getDeclName() << IvarType; 1046f921a4868cf1876636f6684e7f68697b18c0cb47Ted Kremenek Diag(Ivar->getLocation(), diag::note_ivar_decl); 104728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Note! I deliberately want it to fall thru so, we have a 104828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // a property implementation and to avoid future warnings. 104928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 1050744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian else { 1051744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian // FIXME! Rules for properties are somewhat different that those 1052744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian // for assignments. Use a new routine to consolidate all cases; 1053744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian // specifically for property redeclarations as well as for ivars. 1054744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian QualType lhsType =Context.getCanonicalType(PropertyIvarType).getUnqualifiedType(); 1055744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian QualType rhsType =Context.getCanonicalType(IvarType).getUnqualifiedType(); 1056744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian if (lhsType != rhsType && 1057744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian lhsType->isArithmeticType()) { 1058744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian Diag(PropertyDiagLoc, diag::error_property_ivar_type) 1059744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian << property->getDeclName() << PropType 1060744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian << Ivar->getDeclName() << IvarType; 1061744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian Diag(Ivar->getLocation(), diag::note_ivar_decl); 1062744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian // Fall thru - see previous comment 1063744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian } 106428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 106528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // __weak is explicit. So it works on Canonical type. 1066f85e193739c953358c865005855253af4f68a497John McCall if ((PropType.isObjCGCWeak() && !IvarType.isObjCGCWeak() && 10674e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().getGC() != LangOptions::NonGC)) { 1068e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_weak_property) 106928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << property->getDeclName() << Ivar->getDeclName(); 1070edc08821d3f73514291b339db29aca1a17485e39Fariborz Jahanian Diag(Ivar->getLocation(), diag::note_ivar_decl); 107128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Fall thru - see previous comment 107228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 1073f85e193739c953358c865005855253af4f68a497John McCall // Fall thru - see previous comment 107428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if ((property->getType()->isObjCObjectPointerType() || 107528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PropType.isObjCGCStrong()) && IvarType.isObjCGCWeak() && 10764e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().getGC() != LangOptions::NonGC) { 1077e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_strong_property) 107828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << property->getDeclName() << Ivar->getDeclName(); 107928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Fall thru - see previous comment 108028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 108128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 10824e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1083f85e193739c953358c865005855253af4f68a497John McCall checkARCPropertyImpl(*this, PropertyLoc, property, Ivar); 108428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } else if (PropertyIvar) 108528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // @dynamic 1086e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_dynamic_property_ivar_decl); 1087f85e193739c953358c865005855253af4f68a497John McCall 108828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek assert (property && "ActOnPropertyImplDecl - property declaration missing"); 108928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCPropertyImplDecl *PIDecl = 109028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCPropertyImplDecl::Create(Context, CurContext, AtLoc, PropertyLoc, 109128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek property, 109228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek (Synthesize ? 109328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCPropertyImplDecl::Synthesize 109428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek : ObjCPropertyImplDecl::Dynamic), 1095a4ffd85a6684e42f900aad5459e58ad91bb88755Douglas Gregor Ivar, PropertyIvarLoc); 1096e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman 1097744147138cd2a77320c431578da130cc3d81a1d5Fariborz Jahanian if (CompleteTypeErr || !compat) 1098e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman PIDecl->setInvalidDecl(); 1099e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman 110017cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian if (ObjCMethodDecl *getterMethod = property->getGetterMethodDecl()) { 110117cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian getterMethod->createImplicitParams(Context, IDecl); 1102e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman if (getLangOpts().CPlusPlus && Synthesize && !CompleteTypeErr && 11030313f441b72ef6b69a93e5003c684b01cb72fd46Fariborz Jahanian Ivar->getType()->isRecordType()) { 110417cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian // For Objective-C++, need to synthesize the AST for the IVAR object to be 110517cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian // returned by the getter as it must conform to C++'s copy-return rules. 110617cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian // FIXME. Eventually we want to do this for Objective-C as well. 11079a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman SynthesizedFunctionScope Scope(*this, getterMethod); 110817cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian ImplicitParamDecl *SelfDecl = getterMethod->getSelfDecl(); 110917cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian DeclRefExpr *SelfExpr = 1110f4b88a45902af1802a1cb42ba48b1c474474f228John McCall new (Context) DeclRefExpr(SelfDecl, false, SelfDecl->getType(), 11119a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman VK_RValue, PropertyDiagLoc); 11129a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman MarkDeclRefReferenced(SelfExpr); 111317cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian Expr *IvarRefExpr = 11149a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman new (Context) ObjCIvarRefExpr(Ivar, Ivar->getType(), PropertyDiagLoc, 111517cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian SelfExpr, true, true); 111660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Res = 111717cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian PerformCopyInitialization(InitializedEntity::InitializeResult( 11189a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman PropertyDiagLoc, 11193c9034cb7ff1d6c1e4ecd1b44c98f553df013c7cDouglas Gregor getterMethod->getResultType(), 11203c9034cb7ff1d6c1e4ecd1b44c98f553df013c7cDouglas Gregor /*NRVO=*/false), 11219a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman PropertyDiagLoc, 112217cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian Owned(IvarRefExpr)); 112317cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian if (!Res.isInvalid()) { 112417cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian Expr *ResExpr = Res.takeAs<Expr>(); 112517cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian if (ResExpr) 11264765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall ResExpr = MaybeCreateExprWithCleanups(ResExpr); 112717cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian PIDecl->setGetterCXXConstructor(ResExpr); 112817cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian } 112917cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian } 1130831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian if (property->hasAttr<NSReturnsNotRetainedAttr>() && 1131831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian !getterMethod->hasAttr<NSReturnsNotRetainedAttr>()) { 1132831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian Diag(getterMethod->getLocation(), 1133831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian diag::warn_property_getter_owning_mismatch); 1134831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian Diag(property->getLocation(), diag::note_property_declare); 1135831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian } 113617cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian } 113717cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian if (ObjCMethodDecl *setterMethod = property->getSetterMethodDecl()) { 113817cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian setterMethod->createImplicitParams(Context, IDecl); 1139e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman if (getLangOpts().CPlusPlus && Synthesize && !CompleteTypeErr && 1140e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Ivar->getType()->isRecordType()) { 114117cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian // FIXME. Eventually we want to do this for Objective-C as well. 11429a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman SynthesizedFunctionScope Scope(*this, setterMethod); 114317cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian ImplicitParamDecl *SelfDecl = setterMethod->getSelfDecl(); 114417cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian DeclRefExpr *SelfExpr = 1145f4b88a45902af1802a1cb42ba48b1c474474f228John McCall new (Context) DeclRefExpr(SelfDecl, false, SelfDecl->getType(), 11469a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman VK_RValue, PropertyDiagLoc); 11479a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman MarkDeclRefReferenced(SelfExpr); 114817cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian Expr *lhs = 11499a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman new (Context) ObjCIvarRefExpr(Ivar, Ivar->getType(), PropertyDiagLoc, 115017cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian SelfExpr, true, true); 115117cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian ObjCMethodDecl::param_iterator P = setterMethod->param_begin(); 115217cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian ParmVarDecl *Param = (*P); 11533c3b7f90a863af43fa63043d396553ecf205351cJohn McCall QualType T = Param->getType().getNonReferenceType(); 11549a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman DeclRefExpr *rhs = new (Context) DeclRefExpr(Param, false, T, 11559a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman VK_LValue, PropertyDiagLoc); 11569a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman MarkDeclRefReferenced(rhs); 11579a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman ExprResult Res = BuildBinOp(S, PropertyDiagLoc, 11582de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall BO_Assign, lhs, rhs); 115957e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian if (property->getPropertyAttributes() & 116057e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian ObjCPropertyDecl::OBJC_PR_atomic) { 116157e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian Expr *callExpr = Res.takeAs<Expr>(); 116257e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian if (const CXXOperatorCallExpr *CXXCE = 116313bf6336ab395eb6af487ab96d32229460907769Fariborz Jahanian dyn_cast_or_null<CXXOperatorCallExpr>(callExpr)) 116413bf6336ab395eb6af487ab96d32229460907769Fariborz Jahanian if (const FunctionDecl *FuncDecl = CXXCE->getDirectCallee()) 116557e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian if (!FuncDecl->isTrivial()) 116620abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian if (property->getType()->isReferenceType()) { 11679a14db3fefa73ef8a702dea1928fd0ee0befe59bEli Friedman Diag(PropertyDiagLoc, 116820abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian diag::err_atomic_property_nontrivial_assign_op) 116957e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian << property->getType(); 117020abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian Diag(FuncDecl->getLocStart(), 117120abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian diag::note_callee_decl) << FuncDecl; 117220abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian } 117357e264e9f4ff0a72f3585a960cdf63437b76fa93Fariborz Jahanian } 117417cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian PIDecl->setSetterCXXAssignment(Res.takeAs<Expr>()); 117517cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian } 117617cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian } 117717cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanian 117828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (IC) { 117928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (Synthesize) 118028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (ObjCPropertyImplDecl *PPIDecl = 118128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek IC->FindPropertyImplIvarDecl(PropertyIvar)) { 118228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PropertyLoc, diag::error_duplicate_ivar_use) 118328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << PropertyId << PPIDecl->getPropertyDecl()->getIdentifier() 118428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << PropertyIvar; 118528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PPIDecl->getLocation(), diag::note_previous_use); 118628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 118728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 118828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (ObjCPropertyImplDecl *PPIDecl 118928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek = IC->FindPropertyImplDecl(PropertyId)) { 119028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PropertyLoc, diag::error_property_implemented) << PropertyId; 119128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PPIDecl->getLocation(), diag::note_previous_declaration); 1192d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 119328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 119428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek IC->addPropertyImplementation(PIDecl); 11954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCDefaultSynthProperties && 1196260611a32535c851237926bfcf78869b13c07d5bJohn McCall getLangOpts().ObjCRuntime.isNonFragile() && 119771207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek !IDecl->isObjCRequiresPropertyDefs()) { 1198ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian // Diagnose if an ivar was lazily synthesdized due to a previous 1199ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian // use and if 1) property is @dynamic or 2) property is synthesized 1200cdaa6a8fed16d8bd3987fb4f3304dfb4e52876c3Fariborz Jahanian // but it requires an ivar of different name. 1201411c25c4512f00e07442e8818d011c7e0902d739Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared=0; 1202ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian ObjCIvarDecl *Ivar = 0; 1203ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian if (!Synthesize) 1204ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian Ivar = IDecl->lookupInstanceVariable(PropertyId, ClassDeclared); 1205ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian else { 1206ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian if (PropertyIvar && PropertyIvar != PropertyId) 1207ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian Ivar = IDecl->lookupInstanceVariable(PropertyId, ClassDeclared); 1208ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian } 1209cdaa6a8fed16d8bd3987fb4f3304dfb4e52876c3Fariborz Jahanian // Issue diagnostics only if Ivar belongs to current class. 1210cdaa6a8fed16d8bd3987fb4f3304dfb4e52876c3Fariborz Jahanian if (Ivar && Ivar->getSynthesize() && 121160ef308e51c71b760d7f598c1b763ceb7b768148Douglas Gregor declaresSameEntity(IC->getClassInterface(), ClassDeclared)) { 1212ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian Diag(Ivar->getLocation(), diag::err_undeclared_var_use) 1213ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian << PropertyId; 1214ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian Ivar->setInvalidDecl(); 1215ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian } 1216ad51e74030a59a8aa4ef0ebca1d7a701602ef53bFariborz Jahanian } 121728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } else { 121828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (Synthesize) 121928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (ObjCPropertyImplDecl *PPIDecl = 122028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek CatImplClass->FindPropertyImplIvarDecl(PropertyIvar)) { 1221e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_duplicate_ivar_use) 122228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << PropertyId << PPIDecl->getPropertyDecl()->getIdentifier() 122328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << PropertyIvar; 122428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PPIDecl->getLocation(), diag::note_previous_use); 122528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 122628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 122728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek if (ObjCPropertyImplDecl *PPIDecl = 122828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek CatImplClass->FindPropertyImplDecl(PropertyId)) { 1229e4c043d3fdd0f98ab724aa4f1419cec9985ea2c4Eli Friedman Diag(PropertyDiagLoc, diag::error_property_implemented) << PropertyId; 123028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(PPIDecl->getLocation(), diag::note_previous_declaration); 1231d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 123228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 123328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek CatImplClass->addPropertyImplementation(PIDecl); 123428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 123528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 1236d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return PIDecl; 123728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek} 123828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 123928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek//===----------------------------------------------------------------------===// 124028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek// Helper methods. 124128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek//===----------------------------------------------------------------------===// 124228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek 12439d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// DiagnosePropertyMismatch - Compares two properties for their 12449d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// attributes and types and warns on a variety of inconsistencies. 12459d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// 12469d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekvoid 12479d64c15223497f31899cc47fbe1531873dc06f2eTed KremenekSema::DiagnosePropertyMismatch(ObjCPropertyDecl *Property, 12489d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl *SuperProperty, 12499d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek const IdentifierInfo *inheritedName) { 12509d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl::PropertyAttributeKind CAttr = 12519d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Property->getPropertyAttributes(); 12529d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl::PropertyAttributeKind SAttr = 12539d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek SuperProperty->getPropertyAttributes(); 12549d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if ((CAttr & ObjCPropertyDecl::OBJC_PR_readonly) 12559d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek && (SAttr & ObjCPropertyDecl::OBJC_PR_readwrite)) 12569d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(Property->getLocation(), diag::warn_readonly_property) 12579d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Property->getDeclName() << inheritedName; 12589d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if ((CAttr & ObjCPropertyDecl::OBJC_PR_copy) 12599d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek != (SAttr & ObjCPropertyDecl::OBJC_PR_copy)) 12609d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(Property->getLocation(), diag::warn_property_attribute) 12619d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Property->getDeclName() << "copy" << inheritedName; 12621b46d8d78be713c546fb9680eaeea8f793bee5bfFariborz Jahanian else if (!(SAttr & ObjCPropertyDecl::OBJC_PR_readonly)){ 1263f85e193739c953358c865005855253af4f68a497John McCall unsigned CAttrRetain = 1264f85e193739c953358c865005855253af4f68a497John McCall (CAttr & 1265f85e193739c953358c865005855253af4f68a497John McCall (ObjCPropertyDecl::OBJC_PR_retain | ObjCPropertyDecl::OBJC_PR_strong)); 1266f85e193739c953358c865005855253af4f68a497John McCall unsigned SAttrRetain = 1267f85e193739c953358c865005855253af4f68a497John McCall (SAttr & 1268f85e193739c953358c865005855253af4f68a497John McCall (ObjCPropertyDecl::OBJC_PR_retain | ObjCPropertyDecl::OBJC_PR_strong)); 1269f85e193739c953358c865005855253af4f68a497John McCall bool CStrong = (CAttrRetain != 0); 1270f85e193739c953358c865005855253af4f68a497John McCall bool SStrong = (SAttrRetain != 0); 1271f85e193739c953358c865005855253af4f68a497John McCall if (CStrong != SStrong) 1272f85e193739c953358c865005855253af4f68a497John McCall Diag(Property->getLocation(), diag::warn_property_attribute) 1273f85e193739c953358c865005855253af4f68a497John McCall << Property->getDeclName() << "retain (or strong)" << inheritedName; 1274f85e193739c953358c865005855253af4f68a497John McCall } 12759d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 12769d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if ((CAttr & ObjCPropertyDecl::OBJC_PR_nonatomic) 12779d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek != (SAttr & ObjCPropertyDecl::OBJC_PR_nonatomic)) 12789d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(Property->getLocation(), diag::warn_property_attribute) 12799d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Property->getDeclName() << "atomic" << inheritedName; 12809d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (Property->getSetterName() != SuperProperty->getSetterName()) 12819d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(Property->getLocation(), diag::warn_property_attribute) 12829d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Property->getDeclName() << "setter" << inheritedName; 12839d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (Property->getGetterName() != SuperProperty->getGetterName()) 12849d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(Property->getLocation(), diag::warn_property_attribute) 12859d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Property->getDeclName() << "getter" << inheritedName; 12869d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 12879d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek QualType LHSType = 12889d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Context.getCanonicalType(SuperProperty->getType()); 12899d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek QualType RHSType = 12909d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Context.getCanonicalType(Property->getType()); 12919d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 1292c286f3835eb6001c61664cef5d610dfaf80a6e9bFariborz Jahanian if (!Context.propertyTypesAreCompatible(LHSType, RHSType)) { 12938beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian // Do cases not handled in above. 12948beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian // FIXME. For future support of covariant property types, revisit this. 12958beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian bool IncompatibleObjC = false; 12968beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian QualType ConvertedType; 12978beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian if (!isObjCPointerConversion(RHSType, LHSType, 12988beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian ConvertedType, IncompatibleObjC) || 129913546a871db44c707001f507a9edfd0d5bcc81b4Fariborz Jahanian IncompatibleObjC) { 13008beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian Diag(Property->getLocation(), diag::warn_property_types_are_incompatible) 13018beb6a2426b5a6b79ecf019316d9fbd30755e087Fariborz Jahanian << Property->getType() << SuperProperty->getType() << inheritedName; 130213546a871db44c707001f507a9edfd0d5bcc81b4Fariborz Jahanian Diag(SuperProperty->getLocation(), diag::note_property_declare); 130313546a871db44c707001f507a9edfd0d5bcc81b4Fariborz Jahanian } 13049d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 13059d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 13069d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 13079d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekbool Sema::DiagnosePropertyAccessorMismatch(ObjCPropertyDecl *property, 13089d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCMethodDecl *GetterMethod, 13099d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek SourceLocation Loc) { 13109abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian if (!GetterMethod) 13119abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian return false; 13129abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian QualType GetterType = GetterMethod->getResultType().getNonReferenceType(); 13139abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian QualType PropertyIvarType = property->getType().getNonReferenceType(); 13149abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian bool compat = Context.hasSameType(PropertyIvarType, GetterType); 13159abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian if (!compat) { 13169abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian if (isa<ObjCObjectPointerType>(PropertyIvarType) && 13179abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian isa<ObjCObjectPointerType>(GetterType)) 13189abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian compat = 13199abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian Context.canAssignObjCInterfaces( 1320490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian GetterType->getAs<ObjCObjectPointerType>(), 1321490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian PropertyIvarType->getAs<ObjCObjectPointerType>()); 1322490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian else if (CheckAssignmentConstraints(Loc, GetterType, PropertyIvarType) 13239abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian != Compatible) { 13249abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian Diag(Loc, diag::error_property_accessor_type) 13259abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian << property->getDeclName() << PropertyIvarType 13269abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian << GetterMethod->getSelector() << GetterType; 13279abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian Diag(GetterMethod->getLocation(), diag::note_declared_at); 13289abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian return true; 13299abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian } else { 13309abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian compat = true; 13319abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian QualType lhsType =Context.getCanonicalType(PropertyIvarType).getUnqualifiedType(); 13329abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian QualType rhsType =Context.getCanonicalType(GetterType).getUnqualifiedType(); 13339abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian if (lhsType != rhsType && lhsType->isArithmeticType()) 13349abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian compat = false; 13359d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 13369d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 13379abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian 13389abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian if (!compat) { 13399abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian Diag(Loc, diag::warn_accessor_property_type_mismatch) 13409abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian << property->getDeclName() 13419abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian << GetterMethod->getSelector(); 13429abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian Diag(GetterMethod->getLocation(), diag::note_declared_at); 13439abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian return true; 13449abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian } 13459abf88c9286d7465ce18285f87bb302f588b59fcFariborz Jahanian 13469d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 13479d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 13489d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 13499d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// MatchOneProtocolPropertiesInClass - This routine goes thru the list 13509d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// of properties declared in a protocol and compares their attribute against 13519d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// the same property declared in the class or category. 13529d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekvoid 13530dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas GregorSema::MatchOneProtocolPropertiesInClass(Decl *CDecl, ObjCProtocolDecl *PDecl) { 13540dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (!CDecl) 13550dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor return; 13560dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor 13570dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // Category case. 13580dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (ObjCCategoryDecl *CatDecl = dyn_cast<ObjCCategoryDecl>(CDecl)) { 13590dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // FIXME: We should perform this check when the property in the category 13600dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // is declared. 13619d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek assert (CatDecl && "MatchOneProtocolPropertiesInClass"); 13629d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!CatDecl->IsClassExtension()) 13639d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCProtocolDecl::prop_iterator P = PDecl->prop_begin(), 13649d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = PDecl->prop_end(); P != E; ++P) { 13650dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor ObjCPropertyDecl *ProtoProp = *P; 13660dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor DeclContext::lookup_result R 13670dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor = CatDecl->lookup(ProtoProp->getDeclName()); 13680dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor for (unsigned I = 0, N = R.size(); I != N; ++I) { 13690dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (ObjCPropertyDecl *CatProp = dyn_cast<ObjCPropertyDecl>(R[I])) { 13700dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (CatProp != ProtoProp) { 13710dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // Property protocol already exist in class. Diagnose any mismatch. 13720dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor DiagnosePropertyMismatch(CatProp, ProtoProp, 13730dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor PDecl->getIdentifier()); 13740dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor } 13750dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor } 13760dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor } 13779d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 13789d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return; 13799d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 13800dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor 13810dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // Class 13820dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // FIXME: We should perform this check when the property in the class 13830dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // is declared. 13840dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor ObjCInterfaceDecl *IDecl = cast<ObjCInterfaceDecl>(CDecl); 13859d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCProtocolDecl::prop_iterator P = PDecl->prop_begin(), 13860dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor E = PDecl->prop_end(); P != E; ++P) { 13870dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor ObjCPropertyDecl *ProtoProp = *P; 13880dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor DeclContext::lookup_result R 1389aabd094cf694039fe823987e133af7ac25cb9711Douglas Gregor = IDecl->lookup(ProtoProp->getDeclName()); 13900dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor for (unsigned I = 0, N = R.size(); I != N; ++I) { 13910dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (ObjCPropertyDecl *ClassProp = dyn_cast<ObjCPropertyDecl>(R[I])) { 13920dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor if (ClassProp != ProtoProp) { 13930dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor // Property protocol already exist in class. Diagnose any mismatch. 13940dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor DiagnosePropertyMismatch(ClassProp, ProtoProp, 13950dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor PDecl->getIdentifier()); 13960dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor } 13970dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor } 13989d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 13990dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor } 14009d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 14019d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 14029d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// isPropertyReadonly - Return true if property is readonly, by searching 14039d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// for the property in the class and in its categories and implementations 14049d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// 14059d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekbool Sema::isPropertyReadonly(ObjCPropertyDecl *PDecl, 14069d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCInterfaceDecl *IDecl) { 14079d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // by far the most common case. 14089d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!PDecl->isReadOnly()) 14099d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14109d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Even if property is ready only, if interface has a user defined setter, 14119d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // it is not considered read only. 14129d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (IDecl->getInstanceMethod(PDecl->getSetterName())) 14139d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14149d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 14159d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Main class has the property as 'readonly'. Must search 14169d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // through the category list to see if the property's 14179d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // attribute has been over-ridden to 'readwrite'. 1418d329724745b49f894b768d47275b7c2713106e89Douglas Gregor for (ObjCInterfaceDecl::visible_categories_iterator 1419d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Cat = IDecl->visible_categories_begin(), 1420d329724745b49f894b768d47275b7c2713106e89Douglas Gregor CatEnd = IDecl->visible_categories_end(); 1421d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Cat != CatEnd; ++Cat) { 1422d329724745b49f894b768d47275b7c2713106e89Douglas Gregor if (Cat->getInstanceMethod(PDecl->getSetterName())) 14239d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14249d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl *P = 1425d329724745b49f894b768d47275b7c2713106e89Douglas Gregor Cat->FindPropertyDeclaration(PDecl->getIdentifier()); 14269d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (P && !P->isReadOnly()) 14279d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14289d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14299d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 14309d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Also, check for definition of a setter method in the implementation if 14319d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // all else failed. 14329d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(CurContext)) { 14339d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ObjCImplementationDecl *IMD = 14349d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek dyn_cast<ObjCImplementationDecl>(OMD->getDeclContext())) { 14359d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (IMD->getInstanceMethod(PDecl->getSetterName())) 14369d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14379d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } else if (ObjCCategoryImplDecl *CIMD = 14389d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek dyn_cast<ObjCCategoryImplDecl>(OMD->getDeclContext())) { 14399d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (CIMD->getInstanceMethod(PDecl->getSetterName())) 14409d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14419d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14429d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14439d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Lastly, look through the implementation (if one is in scope). 14449d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ObjCImplementationDecl *ImpDecl = IDecl->getImplementation()) 14459d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ImpDecl->getInstanceMethod(PDecl->getSetterName())) 14469d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return false; 14479d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // If all fails, look at the super class. 14489d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ObjCInterfaceDecl *SIDecl = IDecl->getSuperClass()) 14499d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return isPropertyReadonly(PDecl, SIDecl); 14509d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return true; 14519d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 14529d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 14539d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// CollectImmediateProperties - This routine collects all properties in 14540dfe23c5d571222e74e3ed74c6fff3cee792118eDouglas Gregor/// the class and its conforming protocols; but not those in its super class. 14559d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekvoid Sema::CollectImmediateProperties(ObjCContainerDecl *CDecl, 1456e63aedd0cb064fc106636ad856cc0e645e6374ceAnna Zaks ObjCContainerDecl::PropertyMap &PropMap, 1457e63aedd0cb064fc106636ad856cc0e645e6374ceAnna Zaks ObjCContainerDecl::PropertyMap &SuperPropMap) { 14589d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ObjCInterfaceDecl *IDecl = dyn_cast<ObjCInterfaceDecl>(CDecl)) { 14599d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCContainerDecl::prop_iterator P = IDecl->prop_begin(), 14609d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = IDecl->prop_end(); P != E; ++P) { 1461581deb3da481053c4993c7600f97acf7768caac5David Blaikie ObjCPropertyDecl *Prop = *P; 14629d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek PropMap[Prop->getIdentifier()] = Prop; 14639d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14649d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // scan through class's protocols. 146553b9441b5a81a24fa1f66f3f6416f1e36baa9c2fTed Kremenek for (ObjCInterfaceDecl::all_protocol_iterator 146653b9441b5a81a24fa1f66f3f6416f1e36baa9c2fTed Kremenek PI = IDecl->all_referenced_protocol_begin(), 146753b9441b5a81a24fa1f66f3f6416f1e36baa9c2fTed Kremenek E = IDecl->all_referenced_protocol_end(); PI != E; ++PI) 1468cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian CollectImmediateProperties((*PI), PropMap, SuperPropMap); 14699d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14709d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (ObjCCategoryDecl *CATDecl = dyn_cast<ObjCCategoryDecl>(CDecl)) { 14719d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!CATDecl->IsClassExtension()) 14729d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCContainerDecl::prop_iterator P = CATDecl->prop_begin(), 14739d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = CATDecl->prop_end(); P != E; ++P) { 1474581deb3da481053c4993c7600f97acf7768caac5David Blaikie ObjCPropertyDecl *Prop = *P; 14759d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek PropMap[Prop->getIdentifier()] = Prop; 14769d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14779d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // scan through class's protocols. 147853b9441b5a81a24fa1f66f3f6416f1e36baa9c2fTed Kremenek for (ObjCCategoryDecl::protocol_iterator PI = CATDecl->protocol_begin(), 14799d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = CATDecl->protocol_end(); PI != E; ++PI) 1480cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian CollectImmediateProperties((*PI), PropMap, SuperPropMap); 14819d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14829d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek else if (ObjCProtocolDecl *PDecl = dyn_cast<ObjCProtocolDecl>(CDecl)) { 14839d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCProtocolDecl::prop_iterator P = PDecl->prop_begin(), 14849d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = PDecl->prop_end(); P != E; ++P) { 1485581deb3da481053c4993c7600f97acf7768caac5David Blaikie ObjCPropertyDecl *Prop = *P; 1486cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian ObjCPropertyDecl *PropertyFromSuper = SuperPropMap[Prop->getIdentifier()]; 1487cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian // Exclude property for protocols which conform to class's super-class, 1488cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian // as super-class has to implement the property. 1489a929ec7b673b244bec024ba7eb95140404a7af5dFariborz Jahanian if (!PropertyFromSuper || 1490a929ec7b673b244bec024ba7eb95140404a7af5dFariborz Jahanian PropertyFromSuper->getIdentifier() != Prop->getIdentifier()) { 1491cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian ObjCPropertyDecl *&PropEntry = PropMap[Prop->getIdentifier()]; 1492cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian if (!PropEntry) 1493cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian PropEntry = Prop; 1494cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian } 14959d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 14969d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // scan through protocol's protocols. 14979d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCProtocolDecl::protocol_iterator PI = PDecl->protocol_begin(), 14989d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = PDecl->protocol_end(); PI != E; ++PI) 1499cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian CollectImmediateProperties((*PI), PropMap, SuperPropMap); 15009d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 15019d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 15029d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 1503509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian/// CollectSuperClassPropertyImplementations - This routine collects list of 1504509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian/// properties to be implemented in super class(s) and also coming from their 1505509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian/// conforming protocols. 1506509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanianstatic void CollectSuperClassPropertyImplementations(ObjCInterfaceDecl *CDecl, 1507e63aedd0cb064fc106636ad856cc0e645e6374ceAnna Zaks ObjCInterfaceDecl::PropertyMap &PropMap) { 1508509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian if (ObjCInterfaceDecl *SDecl = CDecl->getSuperClass()) { 1509509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian while (SDecl) { 1510b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks SDecl->collectPropertiesToImplement(PropMap); 1511509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian SDecl = SDecl->getSuperClass(); 1512509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian } 1513509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian } 1514509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian} 1515509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian 1516699c9044c7d53a2774d0dd261a6901dd2c4a545fJames Dennett/// \brief Default synthesizes all properties which must be synthesized 1517699c9044c7d53a2774d0dd261a6901dd2c4a545fJames Dennett/// in class's \@implementation. 1518d2ee809f9e7c2c7a83b8918efa11e98863463f78Ted Kremenekvoid Sema::DefaultSynthesizeProperties(Scope *S, ObjCImplDecl* IMPDecl, 1519d2ee809f9e7c2c7a83b8918efa11e98863463f78Ted Kremenek ObjCInterfaceDecl *IDecl) { 1520509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian 1521b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks ObjCInterfaceDecl::PropertyMap PropMap; 1522b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks IDecl->collectPropertiesToImplement(PropMap); 1523509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian if (PropMap.empty()) 1524509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian return; 1525b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks ObjCInterfaceDecl::PropertyMap SuperPropMap; 1526509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian CollectSuperClassPropertyImplementations(IDecl, SuperPropMap); 1527509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian 1528b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks for (ObjCInterfaceDecl::PropertyMap::iterator 1529509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian P = PropMap.begin(), E = PropMap.end(); P != E; ++P) { 1530509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian ObjCPropertyDecl *Prop = P->second; 1531509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian // If property to be implemented in the super class, ignore. 1532509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian if (SuperPropMap[Prop->getIdentifier()]) 1533509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian continue; 1534b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks // Is there a matching property synthesize/dynamic? 1535509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian if (Prop->isInvalidDecl() || 1536509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian Prop->getPropertyImplementation() == ObjCPropertyDecl::Optional || 1537509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian IMPDecl->FindPropertyImplIvarDecl(Prop->getIdentifier())) 1538509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian continue; 1539d3635b9681daaef74974932f77080910b032b9fdFariborz Jahanian // Property may have been synthesized by user. 1540d3635b9681daaef74974932f77080910b032b9fdFariborz Jahanian if (IMPDecl->FindPropertyImplDecl(Prop->getIdentifier())) 1541d3635b9681daaef74974932f77080910b032b9fdFariborz Jahanian continue; 154295f1b86b73a9a203311adc7646f2fa9ee5cdd2b7Fariborz Jahanian if (IMPDecl->getInstanceMethod(Prop->getGetterName())) { 154395f1b86b73a9a203311adc7646f2fa9ee5cdd2b7Fariborz Jahanian if (Prop->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_readonly) 154495f1b86b73a9a203311adc7646f2fa9ee5cdd2b7Fariborz Jahanian continue; 154595f1b86b73a9a203311adc7646f2fa9ee5cdd2b7Fariborz Jahanian if (IMPDecl->getInstanceMethod(Prop->getSetterName())) 154695f1b86b73a9a203311adc7646f2fa9ee5cdd2b7Fariborz Jahanian continue; 154795f1b86b73a9a203311adc7646f2fa9ee5cdd2b7Fariborz Jahanian } 1548f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian if (isa<ObjCProtocolDecl>(Prop->getDeclContext())) { 1549f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian // We won't auto-synthesize properties declared in protocols. 1550f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian Diag(IMPDecl->getLocation(), 1551f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian diag::warn_auto_synthesizing_protocol_property); 1552f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian Diag(Prop->getLocation(), diag::note_property_declare); 1553f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian continue; 1554f8aba8c618920db8f6ef2db0c554b0c270503cefFariborz Jahanian } 15552a6af6b7874e41f3e6213e8d18623c4bac150354Ted Kremenek 15562a6af6b7874e41f3e6213e8d18623c4bac150354Ted Kremenek // We use invalid SourceLocations for the synthesized ivars since they 15572a6af6b7874e41f3e6213e8d18623c4bac150354Ted Kremenek // aren't really synthesized at a particular location; they just exist. 15582a6af6b7874e41f3e6213e8d18623c4bac150354Ted Kremenek // Saying that they are located at the @implementation isn't really going 15592a6af6b7874e41f3e6213e8d18623c4bac150354Ted Kremenek // to help users. 1560975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian ObjCPropertyImplDecl *PIDecl = dyn_cast_or_null<ObjCPropertyImplDecl>( 1561975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian ActOnPropertyImplDecl(S, SourceLocation(), SourceLocation(), 1562975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian true, 1563975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian /* property = */ Prop->getIdentifier(), 1564ad0ce53c8219456938405b84c5d13341a47e3d94Anna Zaks /* ivar = */ Prop->getDefaultSynthIvarName(Context), 1565390fff8e8b480fa146ffc14cbc63a1c2f9e2d206Argyrios Kyrtzidis Prop->getLocation())); 1566975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian if (PIDecl) { 1567975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian Diag(Prop->getLocation(), diag::warn_missing_explicit_synthesis); 15685ea66619a3108e2985e952b9a60a84316d464b25Fariborz Jahanian Diag(IMPDecl->getLocation(), diag::note_while_in_implementation); 1569975eef64182a78d1afc0f3da8cba4cb961cda5e4Fariborz Jahanian } 15702a6af6b7874e41f3e6213e8d18623c4bac150354Ted Kremenek } 1571509d477ae5a24282719320fe92038ccf57358840Fariborz Jahanian} 15729d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 15738697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanianvoid Sema::DefaultSynthesizeProperties(Scope *S, Decl *D) { 1574260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (!LangOpts.ObjCDefaultSynthProperties || LangOpts.ObjCRuntime.isFragile()) 15758697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian return; 15768697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian ObjCImplementationDecl *IC=dyn_cast_or_null<ObjCImplementationDecl>(D); 15778697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian if (!IC) 15788697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian return; 15798697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian if (ObjCInterfaceDecl* IDecl = IC->getClassInterface()) 158071207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek if (!IDecl->isObjCRequiresPropertyDefs()) 1581eb4f2c56c298071d58b441ccf801b039be93788aFariborz Jahanian DefaultSynthesizeProperties(S, IC, IDecl); 15828697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian} 15838697d308c1bdd50e5c45757ac11be701c26e9e97Fariborz Jahanian 158417cb326cb62a59f53d92236394af40eaae4eddbdFariborz Jahanianvoid Sema::DiagnoseUnimplementedProperties(Scope *S, ObjCImplDecl* IMPDecl, 15859d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCContainerDecl *CDecl, 1586811bfcd823d51db6a06b3fd5a5943ff910b79d68Benjamin Kramer const SelectorSet &InsMap) { 1587277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian ObjCContainerDecl::PropertyMap NoNeedToImplPropMap; 1588277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian ObjCInterfaceDecl *IDecl; 1589277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian // Gather properties which need not be implemented in this class 1590277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian // or category. 1591277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian if (!(IDecl = dyn_cast<ObjCInterfaceDecl>(CDecl))) 1592277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian if (ObjCCategoryDecl *C = dyn_cast<ObjCCategoryDecl>(CDecl)) { 1593277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian // For categories, no need to implement properties declared in 1594277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian // its primary class (and its super classes) if property is 1595277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian // declared in one of those containers. 1596277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian if ((IDecl = C->getClassInterface())) 1597277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian IDecl->collectPropertiesToImplement(NoNeedToImplPropMap); 1598277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian } 1599277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian if (IDecl) 1600277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian CollectSuperClassPropertyImplementations(IDecl, NoNeedToImplPropMap); 1601cfa6a27f3cc5add888c6ac84dbcc45854cfd8666Fariborz Jahanian 1602b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks ObjCContainerDecl::PropertyMap PropMap; 1603277076a4cdf684e6ea102197a635d4a352998018Fariborz Jahanian CollectImmediateProperties(CDecl, PropMap, NoNeedToImplPropMap); 16049d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (PropMap.empty()) 16059d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return; 16069d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 16079d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek llvm::DenseSet<ObjCPropertyDecl *> PropImplMap; 16089d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCImplDecl::propimpl_iterator 16099d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek I = IMPDecl->propimpl_begin(), 16109d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek EI = IMPDecl->propimpl_end(); I != EI; ++I) 1611262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie PropImplMap.insert(I->getPropertyDecl()); 16129d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 1613b36ea375e20f71df19c101fa2399b7ea3a607e04Anna Zaks for (ObjCContainerDecl::PropertyMap::iterator 16149d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek P = PropMap.begin(), E = PropMap.end(); P != E; ++P) { 16159d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl *Prop = P->second; 16169d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Is there a matching propery synthesize/dynamic? 16179d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (Prop->isInvalidDecl() || 16189d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Prop->getPropertyImplementation() == ObjCPropertyDecl::Optional || 16197cdc45751cb5b200ad5fff0de28c5d1a64b6fce3Douglas Gregor PropImplMap.count(Prop) || 16207cdc45751cb5b200ad5fff0de28c5d1a64b6fce3Douglas Gregor Prop->getAvailability() == AR_Unavailable) 16219d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek continue; 16229d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!InsMap.count(Prop->getGetterName())) { 1623b8607398a5e1e552f82a86d1d8c3a4031ac4c946Fariborz Jahanian Diag(IMPDecl->getLocation(), 16249d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek isa<ObjCCategoryDecl>(CDecl) ? 16259d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek diag::warn_setter_getter_impl_required_in_category : 16269d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek diag::warn_setter_getter_impl_required) 16279d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Prop->getDeclName() << Prop->getGetterName(); 1628b8607398a5e1e552f82a86d1d8c3a4031ac4c946Fariborz Jahanian Diag(Prop->getLocation(), 1629b8607398a5e1e552f82a86d1d8c3a4031ac4c946Fariborz Jahanian diag::note_property_declare); 1630260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (LangOpts.ObjCDefaultSynthProperties && LangOpts.ObjCRuntime.isNonFragile()) 1631da611a74c408af0f9526acc690b85214bf180852Fariborz Jahanian if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(CDecl)) 163271207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek if (const ObjCInterfaceDecl *RID = ID->isObjCRequiresPropertyDefs()) 1633da611a74c408af0f9526acc690b85214bf180852Fariborz Jahanian Diag(RID->getLocation(), diag::note_suppressed_class_declare); 1634da611a74c408af0f9526acc690b85214bf180852Fariborz Jahanian 16359d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 16369d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 16379d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!Prop->isReadOnly() && !InsMap.count(Prop->getSetterName())) { 1638b8607398a5e1e552f82a86d1d8c3a4031ac4c946Fariborz Jahanian Diag(IMPDecl->getLocation(), 16399d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek isa<ObjCCategoryDecl>(CDecl) ? 16409d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek diag::warn_setter_getter_impl_required_in_category : 16419d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek diag::warn_setter_getter_impl_required) 16429d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << Prop->getDeclName() << Prop->getSetterName(); 1643b8607398a5e1e552f82a86d1d8c3a4031ac4c946Fariborz Jahanian Diag(Prop->getLocation(), 1644b8607398a5e1e552f82a86d1d8c3a4031ac4c946Fariborz Jahanian diag::note_property_declare); 1645260611a32535c851237926bfcf78869b13c07d5bJohn McCall if (LangOpts.ObjCDefaultSynthProperties && LangOpts.ObjCRuntime.isNonFragile()) 1646da611a74c408af0f9526acc690b85214bf180852Fariborz Jahanian if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(CDecl)) 164771207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek if (const ObjCInterfaceDecl *RID = ID->isObjCRequiresPropertyDefs()) 1648da611a74c408af0f9526acc690b85214bf180852Fariborz Jahanian Diag(RID->getLocation(), diag::note_suppressed_class_declare); 16499d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 16509d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 16519d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 16529d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 16539d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekvoid 16549d64c15223497f31899cc47fbe1531873dc06f2eTed KremenekSema::AtomicPropertySetterGetterRules (ObjCImplDecl* IMPDecl, 16559d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCContainerDecl* IDecl) { 16569d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Rules apply in non-GC mode only 16574e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().getGC() != LangOptions::NonGC) 16589d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek return; 16599d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek for (ObjCContainerDecl::prop_iterator I = IDecl->prop_begin(), 16609d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek E = IDecl->prop_end(); 16619d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek I != E; ++I) { 1662581deb3da481053c4993c7600f97acf7768caac5David Blaikie ObjCPropertyDecl *Property = *I; 166394659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis ObjCMethodDecl *GetterMethod = 0; 166494659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis ObjCMethodDecl *SetterMethod = 0; 166594659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis bool LookedUpGetterSetter = false; 166694659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis 1667ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling unsigned Attributes = Property->getPropertyAttributes(); 1668265941bc308d65cc270d5c4de5806f37ce405606John McCall unsigned AttributesAsWritten = Property->getPropertyAttributesAsWritten(); 166994659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis 1670265941bc308d65cc270d5c4de5806f37ce405606John McCall if (!(AttributesAsWritten & ObjCPropertyDecl::OBJC_PR_atomic) && 1671265941bc308d65cc270d5c4de5806f37ce405606John McCall !(AttributesAsWritten & ObjCPropertyDecl::OBJC_PR_nonatomic)) { 167294659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis GetterMethod = IMPDecl->getInstanceMethod(Property->getGetterName()); 167394659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis SetterMethod = IMPDecl->getInstanceMethod(Property->getSetterName()); 167494659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis LookedUpGetterSetter = true; 167594659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis if (GetterMethod) { 167694659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis Diag(GetterMethod->getLocation(), 167794659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis diag::warn_default_atomic_custom_getter_setter) 1678293a45e724a15fb58b8805a5791f9f3aee769cf6Argyrios Kyrtzidis << Property->getIdentifier() << 0; 167994659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis Diag(Property->getLocation(), diag::note_property_declare); 168094659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis } 168194659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis if (SetterMethod) { 168294659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis Diag(SetterMethod->getLocation(), 168394659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis diag::warn_default_atomic_custom_getter_setter) 1684293a45e724a15fb58b8805a5791f9f3aee769cf6Argyrios Kyrtzidis << Property->getIdentifier() << 1; 168594659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis Diag(Property->getLocation(), diag::note_property_declare); 168694659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis } 168794659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis } 168894659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis 16899d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // We only care about readwrite atomic property. 1690ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if ((Attributes & ObjCPropertyDecl::OBJC_PR_nonatomic) || 1691ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCPropertyDecl::OBJC_PR_readwrite)) 16929d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek continue; 16939d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (const ObjCPropertyImplDecl *PIDecl 16949d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek = IMPDecl->FindPropertyImplDecl(Property->getIdentifier())) { 16959d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (PIDecl->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic) 16969d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek continue; 169794659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis if (!LookedUpGetterSetter) { 169894659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis GetterMethod = IMPDecl->getInstanceMethod(Property->getGetterName()); 169994659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis SetterMethod = IMPDecl->getInstanceMethod(Property->getSetterName()); 170094659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis LookedUpGetterSetter = true; 170194659e4bdb87534f591ae185812548c42d6efacbArgyrios Kyrtzidis } 17029d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if ((GetterMethod && !SetterMethod) || (!GetterMethod && SetterMethod)) { 17039d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek SourceLocation MethodLoc = 17049d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek (GetterMethod ? GetterMethod->getLocation() 17059d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek : SetterMethod->getLocation()); 17069d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(MethodLoc, diag::warn_atomic_property_rule) 17077d65f6965d215f4cb2eb0738ee1b9024e5ab5bbaFariborz Jahanian << Property->getIdentifier() << (GetterMethod != 0) 17087d65f6965d215f4cb2eb0738ee1b9024e5ab5bbaFariborz Jahanian << (SetterMethod != 0); 170977bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian // fixit stuff. 171077bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian if (!AttributesAsWritten) { 171177bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian if (Property->getLParenLoc().isValid()) { 171277bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian // @property () ... case. 171377bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceRange PropSourceRange(Property->getAtLoc(), 171477bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian Property->getLParenLoc()); 171577bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian Diag(Property->getLocation(), diag::note_atomic_property_fixup_suggest) << 171677bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian FixItHint::CreateReplacement(PropSourceRange, "@property (nonatomic"); 171777bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian } 171877bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian else { 171977bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian //@property id etc. 172077bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceLocation endLoc = 172177bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian Property->getTypeSourceInfo()->getTypeLoc().getBeginLoc(); 172277bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian endLoc = endLoc.getLocWithOffset(-1); 172377bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceRange PropSourceRange(Property->getAtLoc(), endLoc); 172477bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian Diag(Property->getLocation(), diag::note_atomic_property_fixup_suggest) << 172577bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian FixItHint::CreateReplacement(PropSourceRange, "@property (nonatomic) "); 172677bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian } 172777bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian } 172877bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian else if (!(AttributesAsWritten & ObjCPropertyDecl::OBJC_PR_atomic)) { 172977bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian // @property () ... case. 173077bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceLocation endLoc = Property->getLParenLoc(); 173177bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian SourceRange PropSourceRange(Property->getAtLoc(), endLoc); 173277bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian Diag(Property->getLocation(), diag::note_atomic_property_fixup_suggest) << 173377bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian FixItHint::CreateReplacement(PropSourceRange, "@property (nonatomic, "); 173477bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian } 173577bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian else 173677bfb8b43ec3f7dee3a71f6e854b03ad29dab84fFariborz Jahanian Diag(MethodLoc, diag::note_atomic_property_fixup_suggest); 17379d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(Property->getLocation(), diag::note_property_declare); 17389d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 17399d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 17409d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 17419d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 17429d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 1743f85e193739c953358c865005855253af4f68a497John McCallvoid Sema::DiagnoseOwningPropertyGetterSynthesis(const ObjCImplementationDecl *D) { 17444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().getGC() == LangOptions::GCOnly) 1745f85e193739c953358c865005855253af4f68a497John McCall return; 1746f85e193739c953358c865005855253af4f68a497John McCall 1747f85e193739c953358c865005855253af4f68a497John McCall for (ObjCImplementationDecl::propimpl_iterator 1748f85e193739c953358c865005855253af4f68a497John McCall i = D->propimpl_begin(), e = D->propimpl_end(); i != e; ++i) { 1749581deb3da481053c4993c7600f97acf7768caac5David Blaikie ObjCPropertyImplDecl *PID = *i; 1750f85e193739c953358c865005855253af4f68a497John McCall if (PID->getPropertyImplementation() != ObjCPropertyImplDecl::Synthesize) 1751f85e193739c953358c865005855253af4f68a497John McCall continue; 1752f85e193739c953358c865005855253af4f68a497John McCall 1753f85e193739c953358c865005855253af4f68a497John McCall const ObjCPropertyDecl *PD = PID->getPropertyDecl(); 1754831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian if (PD && !PD->hasAttr<NSReturnsNotRetainedAttr>() && 1755831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian !D->getInstanceMethod(PD->getGetterName())) { 1756f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodDecl *method = PD->getGetterMethodDecl(); 1757f85e193739c953358c865005855253af4f68a497John McCall if (!method) 1758f85e193739c953358c865005855253af4f68a497John McCall continue; 1759f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodFamily family = method->getMethodFamily(); 1760f85e193739c953358c865005855253af4f68a497John McCall if (family == OMF_alloc || family == OMF_copy || 1761f85e193739c953358c865005855253af4f68a497John McCall family == OMF_mutableCopy || family == OMF_new) { 17624e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1763f85e193739c953358c865005855253af4f68a497John McCall Diag(PID->getLocation(), diag::err_ownin_getter_rule); 1764f85e193739c953358c865005855253af4f68a497John McCall else 1765920c9c1155c118ac40e5209d4b757b9f54186339Ted Kremenek Diag(PID->getLocation(), diag::warn_owning_getter_rule); 1766f85e193739c953358c865005855253af4f68a497John McCall Diag(PD->getLocation(), diag::note_property_declare); 1767f85e193739c953358c865005855253af4f68a497John McCall } 1768f85e193739c953358c865005855253af4f68a497John McCall } 1769f85e193739c953358c865005855253af4f68a497John McCall } 1770f85e193739c953358c865005855253af4f68a497John McCall} 1771f85e193739c953358c865005855253af4f68a497John McCall 17725de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall/// AddPropertyAttrs - Propagates attributes from a property to the 17735de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall/// implicitly-declared getter or setter for that property. 17745de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCallstatic void AddPropertyAttrs(Sema &S, ObjCMethodDecl *PropertyMethod, 17755de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall ObjCPropertyDecl *Property) { 17765de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall // Should we just clone all attributes over? 17770a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor for (Decl::attr_iterator A = Property->attr_begin(), 17780a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AEnd = Property->attr_end(); 17790a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor A != AEnd; ++A) { 17800a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isa<DeprecatedAttr>(*A) || 17810a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor isa<UnavailableAttr>(*A) || 17820a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor isa<AvailabilityAttr>(*A)) 17830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PropertyMethod->addAttr((*A)->clone(S.Context)); 17840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 17855de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall} 17865de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall 17879d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// ProcessPropertyDecl - Make sure that any user-defined setter/getter methods 17889d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// have the property type and issue diagnostics if they don't. 17899d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// Also synthesize a getter/setter method if none exist (and update the 17909d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// appropriate lookup tables. FIXME: Should reconsider if adding synthesized 17919d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek/// methods is the "right" thing to do. 17929d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenekvoid Sema::ProcessPropertyDecl(ObjCPropertyDecl *property, 17938254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek ObjCContainerDecl *CD, 17948254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek ObjCPropertyDecl *redeclaredProperty, 17958254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek ObjCContainerDecl *lexicalDC) { 17968254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek 17979d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCMethodDecl *GetterMethod, *SetterMethod; 17989d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 17999d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek GetterMethod = CD->getInstanceMethod(property->getGetterName()); 18009d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek SetterMethod = CD->getInstanceMethod(property->getSetterName()); 18019d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek DiagnosePropertyAccessorMismatch(property, GetterMethod, 18029d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek property->getLocation()); 18039d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 18049d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (SetterMethod) { 18059d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl::PropertyAttributeKind CAttr = 18069d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek property->getPropertyAttributes(); 18079d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if ((!(CAttr & ObjCPropertyDecl::OBJC_PR_readonly)) && 18089d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Context.getCanonicalType(SetterMethod->getResultType()) != 18099d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Context.VoidTy) 18109d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(SetterMethod->getLocation(), diag::err_setter_type_void); 18119d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (SetterMethod->param_size() != 1 || 18122aac0c9f8bc4dca3f883f429af8c1f57132d62d0Fariborz Jahanian !Context.hasSameUnqualifiedType( 1813bb13c320fff4bc4b3536e62626c97d7b055c6113Fariborz Jahanian (*SetterMethod->param_begin())->getType().getNonReferenceType(), 1814bb13c320fff4bc4b3536e62626c97d7b055c6113Fariborz Jahanian property->getType().getNonReferenceType())) { 18159d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(property->getLocation(), 18169d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek diag::warn_accessor_property_type_mismatch) 18179d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << property->getDeclName() 18189d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek << SetterMethod->getSelector(); 18199d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek Diag(SetterMethod->getLocation(), diag::note_declared_at); 18209d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 18219d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 18229d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 18239d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Synthesize getter/setter methods if none exist. 18249d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Find the default getter and if one not found, add one. 18259d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // FIXME: The synthesized property we set here is misleading. We almost always 18269d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // synthesize these methods unless the user explicitly provided prototypes 18279d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // (which is odd, but allowed). Sema should be typechecking that the 18289d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // declarations jive in that situation (which it is not currently). 18299d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!GetterMethod) { 18309d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // No instance method of same name as property getter name was found. 18319d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Declare a getter method and add it to the list of methods 18329d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // for this class. 1833a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek SourceLocation Loc = redeclaredProperty ? 1834a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek redeclaredProperty->getLocation() : 1835a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek property->getLocation(); 1836a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek 1837a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek GetterMethod = ObjCMethodDecl::Create(Context, Loc, Loc, 1838a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek property->getGetterName(), 183975cf3e86d33ce810c12084126385371b335c30baArgyrios Kyrtzidis property->getType(), 0, CD, /*isInstance=*/true, 18401e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose /*isVariadic=*/false, /*isPropertyAccessor=*/true, 184175cf3e86d33ce810c12084126385371b335c30baArgyrios Kyrtzidis /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 18429d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek (property->getPropertyImplementation() == 18439d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl::Optional) ? 18449d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCMethodDecl::Optional : 18459d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCMethodDecl::Required); 18469d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek CD->addDecl(GetterMethod); 18475de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall 18485de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall AddPropertyAttrs(*this, GetterMethod, property); 18495de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall 185023173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek // FIXME: Eventually this shouldn't be needed, as the lexical context 185123173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek // and the real context should be the same. 1852a054fb46b1fb596d1719b89d2d9a5be3c32a4b0dTed Kremenek if (lexicalDC) 185323173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek GetterMethod->setLexicalDeclContext(lexicalDC); 1854831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian if (property->hasAttr<NSReturnsNotRetainedAttr>()) 1855831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian GetterMethod->addAttr( 1856831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian ::new (Context) NSReturnsNotRetainedAttr(Loc, Context)); 18579d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } else 18589d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // A user declared getter will be synthesize when @synthesize of 18599d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // the property with the same name is seen in the @implementation 18601e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose GetterMethod->setPropertyAccessor(true); 18619d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek property->setGetterMethodDecl(GetterMethod); 18629d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 18639d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Skip setter if property is read-only. 18649d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!property->isReadOnly()) { 18659d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Find the default setter and if one not found, add one. 18669d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (!SetterMethod) { 18679d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // No instance method of same name as property setter name was found. 18689d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Declare a setter method and add it to the list of methods 18699d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // for this class. 18708254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek SourceLocation Loc = redeclaredProperty ? 18718254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek redeclaredProperty->getLocation() : 18728254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek property->getLocation(); 18738254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek 18748254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek SetterMethod = 1875491306a83c4f0f49f95a3bcbca8580cb98a91c7aArgyrios Kyrtzidis ObjCMethodDecl::Create(Context, Loc, Loc, 18768254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek property->getSetterName(), Context.VoidTy, 0, 187775cf3e86d33ce810c12084126385371b335c30baArgyrios Kyrtzidis CD, /*isInstance=*/true, /*isVariadic=*/false, 18781e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose /*isPropertyAccessor=*/true, 187975cf3e86d33ce810c12084126385371b335c30baArgyrios Kyrtzidis /*isImplicitlyDeclared=*/true, 188075cf3e86d33ce810c12084126385371b335c30baArgyrios Kyrtzidis /*isDefined=*/false, 18819d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek (property->getPropertyImplementation() == 18829d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek ObjCPropertyDecl::Optional) ? 18838254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek ObjCMethodDecl::Optional : 18848254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek ObjCMethodDecl::Required); 18858254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek 18869d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Invent the arguments for the setter. We don't bother making a 18879d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // nice name for the argument. 1888ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara ParmVarDecl *Argument = ParmVarDecl::Create(Context, SetterMethod, 1889ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara Loc, Loc, 18909d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek property->getIdentifier(), 1891f85e193739c953358c865005855253af4f68a497John McCall property->getType().getUnqualifiedType(), 18929d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek /*TInfo=*/0, 1893d931b086984257de68868a64a235c2b4b34003fbJohn McCall SC_None, 1894d931b086984257de68868a64a235c2b4b34003fbJohn McCall SC_None, 18959d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 0); 1896491306a83c4f0f49f95a3bcbca8580cb98a91c7aArgyrios Kyrtzidis SetterMethod->setMethodParams(Context, Argument, 1897491306a83c4f0f49f95a3bcbca8580cb98a91c7aArgyrios Kyrtzidis ArrayRef<SourceLocation>()); 18985de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall 18995de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall AddPropertyAttrs(*this, SetterMethod, property); 19005de74d19ddcf84cfe9d7d973192ba93fd0c64d4fJohn McCall 19019d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek CD->addDecl(SetterMethod); 190223173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek // FIXME: Eventually this shouldn't be needed, as the lexical context 190323173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek // and the real context should be the same. 19048254aa62d9189395be1eed61194cd4b5ee6cb4a2Ted Kremenek if (lexicalDC) 190523173d7f029f430611caceea72ae61ba6b80af1cTed Kremenek SetterMethod->setLexicalDeclContext(lexicalDC); 19069d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } else 19079d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // A user declared setter will be synthesize when @synthesize of 19089d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // the property with the same name is seen in the @implementation 19091e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose SetterMethod->setPropertyAccessor(true); 19109d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek property->setSetterMethodDecl(SetterMethod); 19119d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek } 19129d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // Add any synthesized methods to the global pool. This allows us to 19139d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // handle the following, which is supported by GCC (and part of the design). 19149d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // 19159d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // @interface Foo 19169d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // @property double bar; 19179d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // @end 19189d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // 19199d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // void thisIsUnfortunate() { 19209d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // id foo; 19219d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // double bar = [foo bar]; 19229d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // } 19239d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // 19249d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (GetterMethod) 19259d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek AddInstanceMethodToGlobalPool(GetterMethod); 19269d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek if (SetterMethod) 19279d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek AddInstanceMethodToGlobalPool(SetterMethod); 1928e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis 1929e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis ObjCInterfaceDecl *CurrentClass = dyn_cast<ObjCInterfaceDecl>(CD); 1930e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis if (!CurrentClass) { 1931e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis if (ObjCCategoryDecl *Cat = dyn_cast<ObjCCategoryDecl>(CD)) 1932e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis CurrentClass = Cat->getClassInterface(); 1933e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis else if (ObjCImplDecl *Impl = dyn_cast<ObjCImplDecl>(CD)) 1934e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis CurrentClass = Impl->getClassInterface(); 1935e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis } 1936e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis if (GetterMethod) 1937e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis CheckObjCMethodOverrides(GetterMethod, CurrentClass, Sema::RTC_Unknown); 1938e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis if (SetterMethod) 1939e15db6f0d226a3bc88d244512d1004c7c1c07391Argyrios Kyrtzidis CheckObjCMethodOverrides(SetterMethod, CurrentClass, Sema::RTC_Unknown); 19409d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 19419d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 1942d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallvoid Sema::CheckObjCPropertyAttributes(Decl *PDecl, 19439d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek SourceLocation Loc, 1944ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling unsigned &Attributes, 1945cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian bool propertyInPrimaryClass) { 19469d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // FIXME: Improve the reported location. 1947f85e193739c953358c865005855253af4f68a497John McCall if (!PDecl || PDecl->isInvalidDecl()) 19485fcd52a6c94c7f93bd80062248353c45330da23aTed Kremenek return; 19495fcd52a6c94c7f93bd80062248353c45330da23aTed Kremenek 19505fcd52a6c94c7f93bd80062248353c45330da23aTed Kremenek ObjCPropertyDecl *PropertyDecl = cast<ObjCPropertyDecl>(PDecl); 1951842f07b065ac481fce9d82d55cb62e36bac6c921Fariborz Jahanian QualType PropertyTy = PropertyDecl->getType(); 19529d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 19534e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount && 1954ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_readonly) && 1955015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian PropertyTy->isObjCRetainableType()) { 1956015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian // 'readonly' property with no obvious lifetime. 1957015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian // its life time will be determined by its backing ivar. 1958015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian unsigned rel = (ObjCDeclSpec::DQ_PR_unsafe_unretained | 1959015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCDeclSpec::DQ_PR_copy | 1960015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCDeclSpec::DQ_PR_retain | 1961015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCDeclSpec::DQ_PR_strong | 1962015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCDeclSpec::DQ_PR_weak | 1963015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian ObjCDeclSpec::DQ_PR_assign); 1964ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if ((Attributes & rel) == 0) 1965015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian return; 1966015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian } 1967015f608042a1d247899866849e69a4e9a1aff6a8Fariborz Jahanian 1968cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian if (propertyInPrimaryClass) { 1969cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // we postpone most property diagnosis until class's implementation 1970cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // because, its readonly attribute may be overridden in its class 1971cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian // extensions making other attributes, which make no sense, to make sense. 1972ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if ((Attributes & ObjCDeclSpec::DQ_PR_readonly) && 1973ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_readwrite)) 1974cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 1975cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian << "readonly" << "readwrite"; 1976cea06d26b8f3a2599bba79f7e072b7550de949a7Fariborz Jahanian } 19779d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek // readonly and readwrite/assign/retain/copy conflict. 1978ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling else if ((Attributes & ObjCDeclSpec::DQ_PR_readonly) && 1979ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & (ObjCDeclSpec::DQ_PR_readwrite | 198028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCDeclSpec::DQ_PR_assign | 1981f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_unsafe_unretained | 198228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek ObjCDeclSpec::DQ_PR_copy | 1983f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_retain | 1984f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_strong))) { 1985ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling const char * which = (Attributes & ObjCDeclSpec::DQ_PR_readwrite) ? 198628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek "readwrite" : 1987ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_assign) ? 198828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek "assign" : 1989ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) ? 1990f85e193739c953358c865005855253af4f68a497John McCall "unsafe_unretained" : 1991ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_copy) ? 199228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek "copy" : "retain"; 19939d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 1994ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Diag(Loc, (Attributes & (ObjCDeclSpec::DQ_PR_readwrite)) ? 199528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek diag::err_objc_property_attr_mutually_exclusive : 199628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek diag::warn_objc_property_attr_mutually_exclusive) 199728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << "readonly" << which; 199828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 19999d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 200028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Check for copy or retain on non-object types. 2001ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if ((Attributes & (ObjCDeclSpec::DQ_PR_weak | ObjCDeclSpec::DQ_PR_copy | 2002f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_retain | ObjCDeclSpec::DQ_PR_strong)) && 2003f85e193739c953358c865005855253af4f68a497John McCall !PropertyTy->isObjCRetainableType() && 2004842f07b065ac481fce9d82d55cb62e36bac6c921Fariborz Jahanian !PropertyDecl->getAttr<ObjCNSObjectAttr>()) { 200528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(Loc, diag::err_objc_property_requires_object) 2006ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling << (Attributes & ObjCDeclSpec::DQ_PR_weak ? "weak" : 2007ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes & ObjCDeclSpec::DQ_PR_copy ? "copy" : "retain (or strong)"); 2008ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~(ObjCDeclSpec::DQ_PR_weak | ObjCDeclSpec::DQ_PR_copy | 2009f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_retain | ObjCDeclSpec::DQ_PR_strong); 2010977ea7864a50eee39f6bef8a5a79154ac9ba4b3eJohn McCall PropertyDecl->setInvalidDecl(); 201128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 20129d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 201328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Check for more than one of { assign, copy, retain }. 2014ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_assign) { 2015ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_copy) { 201628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 201728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << "assign" << "copy"; 2018ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_copy; 201928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 2020ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_retain) { 202128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 202228685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << "assign" << "retain"; 2023ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_retain; 202428685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 2025ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_strong) { 2026f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2027f85e193739c953358c865005855253af4f68a497John McCall << "assign" << "strong"; 2028ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_strong; 2029f85e193739c953358c865005855253af4f68a497John McCall } 20304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount && 2031ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_weak)) { 2032f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2033f85e193739c953358c865005855253af4f68a497John McCall << "assign" << "weak"; 2034ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_weak; 2035f85e193739c953358c865005855253af4f68a497John McCall } 2036ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling } else if (Attributes & ObjCDeclSpec::DQ_PR_unsafe_unretained) { 2037ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_copy) { 2038f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2039f85e193739c953358c865005855253af4f68a497John McCall << "unsafe_unretained" << "copy"; 2040ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_copy; 2041f85e193739c953358c865005855253af4f68a497John McCall } 2042ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_retain) { 2043f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2044f85e193739c953358c865005855253af4f68a497John McCall << "unsafe_unretained" << "retain"; 2045ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_retain; 2046f85e193739c953358c865005855253af4f68a497John McCall } 2047ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_strong) { 2048f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2049f85e193739c953358c865005855253af4f68a497John McCall << "unsafe_unretained" << "strong"; 2050ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_strong; 2051f85e193739c953358c865005855253af4f68a497John McCall } 20524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount && 2053ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_weak)) { 2054f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2055f85e193739c953358c865005855253af4f68a497John McCall << "unsafe_unretained" << "weak"; 2056ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_weak; 2057f85e193739c953358c865005855253af4f68a497John McCall } 2058ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling } else if (Attributes & ObjCDeclSpec::DQ_PR_copy) { 2059ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_retain) { 206028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 206128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek << "copy" << "retain"; 2062ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_retain; 206328685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 2064ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_strong) { 2065f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2066f85e193739c953358c865005855253af4f68a497John McCall << "copy" << "strong"; 2067ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_strong; 2068f85e193739c953358c865005855253af4f68a497John McCall } 2069ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCDeclSpec::DQ_PR_weak) { 2070f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2071f85e193739c953358c865005855253af4f68a497John McCall << "copy" << "weak"; 2072ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_weak; 2073f85e193739c953358c865005855253af4f68a497John McCall } 2074f85e193739c953358c865005855253af4f68a497John McCall } 2075ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling else if ((Attributes & ObjCDeclSpec::DQ_PR_retain) && 2076ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_weak)) { 2077f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2078f85e193739c953358c865005855253af4f68a497John McCall << "retain" << "weak"; 2079ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_retain; 2080f85e193739c953358c865005855253af4f68a497John McCall } 2081ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling else if ((Attributes & ObjCDeclSpec::DQ_PR_strong) && 2082ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_weak)) { 2083f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 2084f85e193739c953358c865005855253af4f68a497John McCall << "strong" << "weak"; 2085ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_weak; 208628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 20879d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 2088ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if ((Attributes & ObjCDeclSpec::DQ_PR_atomic) && 2089ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_nonatomic)) { 20909d1bbeab2475fe45a3d4cb8de6810bc3275f1dd7Fariborz Jahanian Diag(Loc, diag::err_objc_property_attr_mutually_exclusive) 20919d1bbeab2475fe45a3d4cb8de6810bc3275f1dd7Fariborz Jahanian << "atomic" << "nonatomic"; 2092ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling Attributes &= ~ObjCDeclSpec::DQ_PR_atomic; 20939d1bbeab2475fe45a3d4cb8de6810bc3275f1dd7Fariborz Jahanian } 20949d1bbeab2475fe45a3d4cb8de6810bc3275f1dd7Fariborz Jahanian 209528685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // Warn if user supplied no assignment attribute, property is 209628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // readwrite, and this is an object type. 2097ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (!(Attributes & (ObjCDeclSpec::DQ_PR_assign | ObjCDeclSpec::DQ_PR_copy | 2098f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_unsafe_unretained | 2099f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_retain | ObjCDeclSpec::DQ_PR_strong | 2100f85e193739c953358c865005855253af4f68a497John McCall ObjCDeclSpec::DQ_PR_weak)) && 210128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek PropertyTy->isObjCObjectPointerType()) { 21024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 2103bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian // With arc, @property definitions should default to (strong) when 2104f21a92d35953adb038ffbe37cd1a4083e0df0ec0Fariborz Jahanian // not specified; including when property is 'readonly'. 2105bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian PropertyDecl->setPropertyAttributes(ObjCPropertyDecl::OBJC_PR_strong); 2106ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling else if (!(Attributes & ObjCDeclSpec::DQ_PR_readonly)) { 21079f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian bool isAnyClassTy = 21089f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian (PropertyTy->isObjCClassType() || 21099f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian PropertyTy->isObjCQualifiedClassType()); 21109f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian // In non-gc, non-arc mode, 'Class' is treated as a 'void *' no need to 21119f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian // issue any warning. 21124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (isAnyClassTy && getLangOpts().getGC() == LangOptions::NonGC) 21139f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian ; 2114f224fb5de15e10cecd2d87fee73b0e39b503d924Fariborz Jahanian else if (propertyInPrimaryClass) { 2115f224fb5de15e10cecd2d87fee73b0e39b503d924Fariborz Jahanian // Don't issue warning on property with no life time in class 2116f224fb5de15e10cecd2d87fee73b0e39b503d924Fariborz Jahanian // extension as it is inherited from property in primary class. 2117bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian // Skip this warning in gc-only mode. 21184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().getGC() != LangOptions::GCOnly) 2119bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian Diag(Loc, diag::warn_objc_property_no_assignment_attribute); 21200a68dc7f04be1542ce249ff4adb169453698ad91Argyrios Kyrtzidis 2121bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian // If non-gc code warn that this is likely inappropriate. 21224e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().getGC() == LangOptions::NonGC) 2123bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian Diag(Loc, diag::warn_objc_property_default_assign_on_object); 21249f37cd1810646ffc9002c7a6477fe158ee15ede4Fariborz Jahanian } 2125bc03aea4bec84d7abecabd26b8583adb687c4089Fariborz Jahanian } 21269d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 212728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // FIXME: Implement warning dependent on NSCopying being 212828685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // implemented. See also: 212928685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // <rdar://5168496&4855821&5607453&5096644&4947311&5698469&4947014&5168496> 213028685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek // (please trim this list while you are at it). 213128685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek } 21329d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek 2133ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (!(Attributes & ObjCDeclSpec::DQ_PR_copy) 2134ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling &&!(Attributes & ObjCDeclSpec::DQ_PR_readonly) 21354e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie && getLangOpts().getGC() == LangOptions::GCOnly 213628685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek && PropertyTy->isBlockPointerType()) 213728685ab2ddeea146841bf2e277e25c7b32dfc9f6Ted Kremenek Diag(Loc, diag::warn_objc_property_copy_missing_on_block); 2138ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling else if ((Attributes & ObjCDeclSpec::DQ_PR_retain) && 2139ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_readonly) && 2140ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling !(Attributes & ObjCDeclSpec::DQ_PR_strong) && 2141528a499eb84d61667f65b16a13780c135b822f6bFariborz Jahanian PropertyTy->isBlockPointerType()) 2142528a499eb84d61667f65b16a13780c135b822f6bFariborz Jahanian Diag(Loc, diag::warn_objc_property_retain_of_block); 214348a98c7a8467a9570d2fc7f2aab7f5273a3e218eFariborz Jahanian 2144ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if ((Attributes & ObjCDeclSpec::DQ_PR_readonly) && 2145ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & ObjCDeclSpec::DQ_PR_setter)) 214648a98c7a8467a9570d2fc7f2aab7f5273a3e218eFariborz Jahanian Diag(Loc, diag::warn_objc_readonly_property_has_setter); 214748a98c7a8467a9570d2fc7f2aab7f5273a3e218eFariborz Jahanian 21489d64c15223497f31899cc47fbe1531873dc06f2eTed Kremenek} 2149