SemaExprObjC.cpp revision eb382ec1507cf2c8c12d7443d0b67c076223aec6
185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner//===--- SemaExprObjC.cpp - Semantic Analysis for ObjC Expressions --------===// 285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// 385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// The LLVM Compiler Infrastructure 485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// 585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// This file is distributed under the University of Illinois Open Source 685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// License. See LICENSE.TXT for details. 785a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// 885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner//===----------------------------------------------------------------------===// 985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// 1085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// This file implements semantic analysis for Objective-C expressions. 1185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// 1285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner//===----------------------------------------------------------------------===// 1385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 15e737f5041a36d0befb39ffeed8d50ba15916d3daDouglas Gregor#include "clang/Sema/Lookup.h" 165f1e0942a32657b625702aa52f82430d0120f424John McCall#include "clang/Sema/Scope.h" 1726743b20e4a8c2a986e6453f0c38beba0afef633John McCall#include "clang/Sema/ScopeInfo.h" 18e737f5041a36d0befb39ffeed8d50ba15916d3daDouglas Gregor#include "clang/Sema/Initialization.h" 192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall#include "clang/Analysis/DomainSpecific/CocoaConventions.h" 20ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek#include "clang/Edit/Rewriters.h" 21ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek#include "clang/Edit/Commit.h" 2285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner#include "clang/AST/ASTContext.h" 2385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner#include "clang/AST/DeclObjC.h" 24f494b579b22f9950f5af021f0bf9879a91bb8b41Steve Naroff#include "clang/AST/ExprObjC.h" 25f85e193739c953358c865005855253af4f68a497John McCall#include "clang/AST/StmtVisitor.h" 262725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor#include "clang/AST/TypeLoc.h" 2739c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner#include "llvm/ADT/SmallString.h" 2861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff#include "clang/Lex/Preprocessor.h" 2961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 3085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattnerusing namespace clang; 3126743b20e4a8c2a986e6453f0c38beba0afef633John McCallusing namespace sema; 328d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidisusing llvm::makeArrayRef; 3385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 34f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCStringLiteral(SourceLocation *AtLocs, 35f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Expr **strings, 36f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall unsigned NumStrings) { 3739c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner StringLiteral **Strings = reinterpret_cast<StringLiteral**>(strings); 3839c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner 39f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner // Most ObjC strings are formed out of a single piece. However, we *can* 40f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner // have strings formed out of multiple @ strings with multiple pptokens in 41f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner // each one, e.g. @"foo" "bar" @"baz" "qux" which need to be turned into one 42f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner // StringLiteral for ObjCStringLiteral to hold onto. 4339c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner StringLiteral *S = Strings[0]; 441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner // If we have a multi-part string, merge it all together. 46f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner if (NumStrings != 1) { 4785a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner // Concatenate objc strings. 48f7ccbad5d9949e7ddd1cbef43d482553b811e026Dylan Noblesmith SmallString<128> StrBuf; 495f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<SourceLocation, 8> StrLocs; 501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 51726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner for (unsigned i = 0; i != NumStrings; ++i) { 5239c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner S = Strings[i]; 531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 545cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor // ObjC strings can't be wide or UTF. 555cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!S->isAscii()) { 56f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner Diag(S->getLocStart(), diag::err_cfstring_literal_not_string_constant) 57f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner << S->getSourceRange(); 58f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner return true; 59f4b136fb40aeedeaaa6ce7cdff22f375eb76c47bChris Lattner } 601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 612f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer // Append the string. 622f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer StrBuf += S->getString(); 631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6439c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner // Get the locations of the string tokens. 6539c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner StrLocs.append(S->tokloc_begin(), S->tokloc_end()); 6685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6839c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner // Create the aggregate string with the appropriate content and location 6939c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner // information. 7065aa6885818d4b4eea2e5a9d12085b2398148662Jay Foad S = StringLiteral::Create(Context, StrBuf, 715cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor StringLiteral::Ascii, /*Pascal=*/false, 722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner Context.getPointerType(Context.CharTy), 7339c28bbbf235533e9ae7d06fb9b13371dfcc542dChris Lattner &StrLocs[0], StrLocs.size()); 7485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 75ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 76ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return BuildObjCStringLiteral(AtLocs[0], S); 77ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 79ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCStringLiteral(SourceLocation AtLoc, StringLiteral *S){ 80690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner // Verify that this composite string is acceptable for ObjC strings. 81690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner if (CheckObjCString(S)) 8285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 83a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner 84a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner // Initialize the constant string interface lazily. This assumes 85d9fd7647e286723d100db4cfeab31ec022eec629Steve Naroff // the NSString interface is seen in this translation unit. Note: We 86d9fd7647e286723d100db4cfeab31ec022eec629Steve Naroff // don't use NSConstantString, since the runtime team considers this 87d9fd7647e286723d100db4cfeab31ec022eec629Steve Naroff // interface private (even though it appears in the header files). 88a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCConstantStringInterface(); 89a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (!Ty.isNull()) { 9014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie } else if (getLangOpts().NoConstantCFStrings) { 924c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian IdentifierInfo *NSIdent=0; 934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie std::string StringClass(getLangOpts().ObjCConstantStringClass); 944c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian 954c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian if (StringClass.empty()) 964c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian NSIdent = &Context.Idents.get("NSConstantString"); 974c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian else 984c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian NSIdent = &Context.Idents.get(StringClass); 994c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian 100ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, NSIdent, AtLoc, 1018a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian LookupOrdinaryName); 1028a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian if (ObjCInterfaceDecl *StrIF = dyn_cast_or_null<ObjCInterfaceDecl>(IF)) { 1038a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Context.setObjCConstantStringInterface(StrIF); 1048a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Ty = Context.getObjCConstantStringInterface(); 1058a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Ty = Context.getObjCObjectPointerType(Ty); 1068a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian } else { 1078a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian // If there is no NSConstantString interface defined then treat this 1088a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian // as error and recover from it. 1098a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Diag(S->getLocStart(), diag::err_no_nsconstant_string_class) << NSIdent 1108a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian << S->getSourceRange(); 1118a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Ty = Context.getObjCIdType(); 1128a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian } 11313fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner } else { 114eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *NSIdent = NSAPIObj->getNSClassId(NSAPI::ClassId_NSString); 115ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, NSIdent, AtLoc, 116c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor LookupOrdinaryName); 117a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (ObjCInterfaceDecl *StrIF = dyn_cast_or_null<ObjCInterfaceDecl>(IF)) { 118a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner Context.setObjCConstantStringInterface(StrIF); 119a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner Ty = Context.getObjCConstantStringInterface(); 12014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 121a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner } else { 122f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // If there is no NSString interface defined, implicitly declare 123f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // a @class NSString; and use that instead. This is to make sure 124f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // type of an NSString literal is represented correctly, instead of 125f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // being an 'id' type. 126f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Ty = Context.getObjCNSStringType(); 127f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian if (Ty.isNull()) { 128f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian ObjCInterfaceDecl *NSStringIDecl = 129f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian ObjCInterfaceDecl::Create (Context, 130f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Context.getTranslationUnitDecl(), 131f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian SourceLocation(), NSIdent, 132f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian 0, SourceLocation()); 133f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Ty = Context.getObjCInterfaceType(NSStringIDecl); 134f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Context.setObjCNSStringType(Ty); 135f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian } 136f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Ty = Context.getObjCObjectPointerType(Ty); 137a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner } 13813fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner } 1391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 140ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return new (Context) ObjCStringLiteral(S, Ty, AtLoc); 141ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 142ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 143ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// \brief Retrieve the NSNumber factory method that should be used to create 144ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// an Objective-C literal for the given type. 145ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic ObjCMethodDecl *getNSNumberFactoryMethod(Sema &S, SourceLocation Loc, 146eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType NumberType, 147eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard bool isLiteral = false, 148eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceRange R = SourceRange()) { 149ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Optional<NSAPI::NSNumberLiteralMethodKind> Kind 150eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard = S.NSAPIObj->getNSNumberFactoryMethodKind(NumberType); 151ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 152ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Kind) { 153eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (isLiteral) { 154eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_invalid_nsnumber_type) 155eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << NumberType << R; 156eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 157ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return 0; 158ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 159eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 160ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If we already looked up this method, we're done. 161ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.NSNumberLiteralMethods[*Kind]) 162ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return S.NSNumberLiteralMethods[*Kind]; 163ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 164ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = S.NSAPIObj->getNSNumberLiteralSelector(*Kind, 165ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*Instance=*/false); 166ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 167eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ASTContext &CX = S.Context; 168eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 169eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look up the NSNumber class, if we haven't done so already. It's cached 170eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // in the Sema instance. 171eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!S.NSNumberDecl) { 172eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *NSNumberId = S.NSAPIObj->getNSClassId(NSAPI::ClassId_NSNumber); 173eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NamedDecl *IF = S.LookupSingleName(S.TUScope, NSNumberId, 174eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Loc, Sema::LookupOrdinaryName); 175eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.NSNumberDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 176eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!S.NSNumberDecl) { 177eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (S.getLangOpts().DebuggerObjCLiteral) { 178eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Create a stub definition of NSNumber. 179eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.NSNumberDecl = ObjCInterfaceDecl::Create (CX, 180eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard CX.getTranslationUnitDecl(), 181eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceLocation(), NSNumberId, 182eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 0, SourceLocation()); 183eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else { 184eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Otherwise, require a declaration of NSNumber. 185eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_undeclared_nsnumber); 186eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return 0; 187eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 188eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (!S.NSNumberDecl->hasDefinition()) { 189eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_undeclared_nsnumber); 190eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return 0; 191eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 192eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 193eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // generate the pointer to NSNumber type. 194eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.NSNumberPointer = CX.getObjCObjectPointerType(CX.getObjCInterfaceType(S.NSNumberDecl)); 195eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 196eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 197ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for the appropriate method within NSNumber. 198ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *Method = S.NSNumberDecl->lookupClassMethod(Sel);; 1994e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && S.getLangOpts().DebuggerObjCLiteral) { 200eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // create a stub definition this NSNumber factory method. 201ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek TypeSourceInfo *ResultTInfo = 0; 202eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Method = ObjCMethodDecl::Create(CX, SourceLocation(), SourceLocation(), Sel, 203eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.NSNumberPointer, ResultTInfo, S.NSNumberDecl, 204eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isInstance=*/false, /*isVariadic=*/false, 205eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isSynthesized=*/false, 206eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isImplicitlyDeclared=*/true, 207eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isDefined=*/false, ObjCMethodDecl::Required, 208eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*HasRelatedResultType=*/false); 209ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *value = ParmVarDecl::Create(S.Context, Method, 210ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 211eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard &CX.Idents.get("value"), 212eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NumberType, /*TInfo=*/0, SC_None, SC_None, 0); 213ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Method->setMethodParams(S.Context, value, ArrayRef<SourceLocation>()); 214ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 215ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 216ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Method) { 217ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(Loc, diag::err_undeclared_nsnumber_method) << Sel; 218ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return 0; 219ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 220ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 221ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure the return type is reasonable. 222ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Method->getResultType()->isObjCObjectPointerType()) { 223ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(Loc, diag::err_objc_literal_method_sig) 224ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Sel; 225ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(Method->getLocation(), diag::note_objc_literal_method_return) 226ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Method->getResultType(); 227ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return 0; 228ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 229ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 230ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Note: if the parameter type is out-of-line, we'll catch it later in the 231ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // implicit conversion. 232ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 233ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.NSNumberLiteralMethods[*Kind] = Method; 234ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Method; 235ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 236ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 237eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard/// BuildObjCNumericLiteral - builds an ObjCBoxedExpr AST node for the 238eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard/// numeric literal expression. Type of the expression will be "NSNumber *". 239ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCNumericLiteral(SourceLocation AtLoc, Expr *Number) { 240eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // compute the effective range of the literal, including the leading '@'. 241eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceRange SR(AtLoc, Number->getSourceRange().getEnd()); 242ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 243ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Determine the type of the literal. 244ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType NumberType = Number->getType(); 245ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (CharacterLiteral *Char = dyn_cast<CharacterLiteral>(Number)) { 246ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // In C, character literals have type 'int'. That's not the type we want 247ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // to use to determine the Objective-c literal kind. 248ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Char->getKind()) { 249ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::Ascii: 250ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.CharTy; 251ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 252ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 253ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::Wide: 254ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.getWCharType(); 255ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 256ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 257ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::UTF16: 258ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.Char16Ty; 259ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 260ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 261ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::UTF32: 262ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.Char32Ty; 263ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 264ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 265ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 266ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 267ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for the appropriate method within NSNumber. 268ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Construct the literal. 269eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *Method = getNSNumberFactoryMethod(*this, AtLoc, NumberType, 270eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard true, Number->getSourceRange()); 271ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Method) 272ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 273ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 274ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Convert the number to the type that the parameter expects. 275eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType ArgType = Method->param_begin()[0]->getType(); 276eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ExprResult ConvertedNumber = PerformImplicitConversion(Number, ArgType, 277ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek AA_Sending); 278ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (ConvertedNumber.isInvalid()) 279ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 280ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Number = ConvertedNumber.get(); 281ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 282ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 283eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(Number, NSNumberPointer, Method, SR)); 284ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 285ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 286ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::ActOnObjCBoolLiteral(SourceLocation AtLoc, 287ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation ValueLoc, 288ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool Value) { 289ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Inner; 2904e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 291ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ActOnCXXBoolLiteral(ValueLoc, Value? tok::kw_true : tok::kw_false); 292ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } else { 293ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // C doesn't actually have a way to represent literal values of type 294ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // _Bool. So, we'll use 0/1 and implicit cast to _Bool. 295ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ActOnIntegerConstant(ValueLoc, Value? 1 : 0); 296ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ImpCastExprToType(Inner.get(), Context.BoolTy, 297ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek CK_IntegralToBoolean); 298ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 299ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 300ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return BuildObjCNumericLiteral(AtLoc, Inner.get()); 301ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 302ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 303ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// \brief Check that the given expression is a valid element of an Objective-C 304ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// collection literal. 305ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic ExprResult CheckObjCCollectionLiteralElement(Sema &S, Expr *Element, 306ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType T) { 307ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If the expression is type-dependent, there's nothing for us to do. 308ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Element->isTypeDependent()) 309ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Element; 310ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 311ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = S.CheckPlaceholderExpr(Element); 312ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 313ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 314ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 315ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 316ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // In C++, check for an implicit conversion to an Objective-C object pointer 317ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // type. 3184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().CPlusPlus && Element->getType()->isRecordType()) { 319ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializedEntity Entity 320ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = InitializedEntity::InitializeParameter(S.Context, T, /*Consumed=*/false); 321ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializationKind Kind 322ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = InitializationKind::CreateCopy(Element->getLocStart(), SourceLocation()); 323ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializationSequence Seq(S, Entity, Kind, &Element, 1); 324ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Seq.Failed()) 325ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Seq.Perform(S, Entity, Kind, MultiExprArg(S, &Element, 1)); 326ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 327ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 328ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *OrigElement = Element; 329ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 330ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Perform lvalue-to-rvalue conversion. 331ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.DefaultLvalueConversion(Element); 332ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 333ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 334ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 335ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 336ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure that we have an Objective-C pointer type or block. 337ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Element->getType()->isObjCObjectPointerType() && 338ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Element->getType()->isBlockPointerType()) { 339ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool Recovered = false; 340ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 341ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If this is potentially an Objective-C numeric literal, add the '@'. 342ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (isa<IntegerLiteral>(OrigElement) || 343ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<CharacterLiteral>(OrigElement) || 344ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<FloatingLiteral>(OrigElement) || 345ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<ObjCBoolLiteralExpr>(OrigElement) || 346ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<CXXBoolLiteralExpr>(OrigElement)) { 347ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.NSAPIObj->getNSNumberFactoryMethodKind(OrigElement->getType())) { 348ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek int Which = isa<CharacterLiteral>(OrigElement) ? 1 349ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : (isa<CXXBoolLiteralExpr>(OrigElement) || 350ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<ObjCBoolLiteralExpr>(OrigElement)) ? 2 351ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : 3; 352ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 353ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(OrigElement->getLocStart(), diag::err_box_literal_collection) 354ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Which << OrigElement->getSourceRange() 355ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FixItHint::CreateInsertion(OrigElement->getLocStart(), "@"); 356ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 357ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.BuildObjCNumericLiteral(OrigElement->getLocStart(), 358ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OrigElement); 359ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 360ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 361ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 362ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 363ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Recovered = true; 364ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 365ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 366ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If this is potentially an Objective-C string literal, add the '@'. 367ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else if (StringLiteral *String = dyn_cast<StringLiteral>(OrigElement)) { 368ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (String->isAscii()) { 369ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(OrigElement->getLocStart(), diag::err_box_literal_collection) 370ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 0 << OrigElement->getSourceRange() 371ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FixItHint::CreateInsertion(OrigElement->getLocStart(), "@"); 372ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 373ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.BuildObjCStringLiteral(OrigElement->getLocStart(), String); 374ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 375ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 376ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 377ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 378ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Recovered = true; 379ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 380ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 381ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 382ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Recovered) { 383ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(Element->getLocStart(), diag::err_invalid_collection_element) 384ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Element->getType(); 385ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 386ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 387ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 388ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 389ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure that the element has the type that the container factory 390ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // function expects. 391ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return S.PerformCopyInitialization( 392ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializedEntity::InitializeParameter(S.Context, T, 393ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*Consumed=*/false), 394ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element->getLocStart(), Element); 395ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 396ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 397eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick BeardExprResult Sema::BuildObjCBoxedExpr(SourceRange SR, Expr *ValueExpr) { 398eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ValueExpr->isTypeDependent()) { 399eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 400eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(ValueExpr, Context.DependentTy, NULL, SR); 401eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return Owned(BoxedExpr); 402eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 403eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *BoxingMethod = NULL; 404eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType BoxedType; 405eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to an RValue, so we can check for pointer types... 406eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ExprResult RValue = DefaultFunctionArrayLvalueConversion(ValueExpr); 407eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (RValue.isInvalid()) { 408eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 409eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 410eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = RValue.get(); 411eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType ValueType(ValueExpr->getType().getCanonicalType()); 412eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (const PointerType *PT = ValueType->getAs<PointerType>()) { 413eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType PointeeType = PT->getPointeeType(); 414eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (Context.hasSameUnqualifiedType(PointeeType, Context.CharTy)) { 415eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 416eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!NSStringDecl) { 417eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *NSStringId = 418eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSAPIObj->getNSClassId(NSAPI::ClassId_NSString); 419eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NamedDecl *Decl = LookupSingleName(TUScope, NSStringId, 420eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SR.getBegin(), LookupOrdinaryName); 421eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSStringDecl = dyn_cast_or_null<ObjCInterfaceDecl>(Decl); 422eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!NSStringDecl) { 423eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (getLangOpts().DebuggerObjCLiteral) { 424eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Support boxed expressions in the debugger w/o NSString declaration. 425eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSStringDecl = ObjCInterfaceDecl::Create(Context, 426eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Context.getTranslationUnitDecl(), 427eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceLocation(), NSStringId, 428eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 0, SourceLocation()); 429eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else { 430eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_undeclared_nsstring); 431eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 432eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 433eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (!NSStringDecl->hasDefinition()) { 434eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_undeclared_nsstring); 435eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 436eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 437eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard assert(NSStringDecl && "NSStringDecl should not be NULL"); 438eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSStringPointer = 439eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Context.getObjCObjectPointerType(Context.getObjCInterfaceType(NSStringDecl)); 440eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 441eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 442eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!StringWithUTF8StringMethod) { 443eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *II = &Context.Idents.get("stringWithUTF8String"); 444eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Selector stringWithUTF8String = Context.Selectors.getUnarySelector(II); 445eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 446eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look for the appropriate method within NSString. 447eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard StringWithUTF8StringMethod = NSStringDecl->lookupClassMethod(stringWithUTF8String); 448eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!StringWithUTF8StringMethod && getLangOpts().DebuggerObjCLiteral) { 449eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Debugger needs to work even if NSString hasn't been defined. 450eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard TypeSourceInfo *ResultTInfo = 0; 451eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *M = 452eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl::Create(Context, SourceLocation(), SourceLocation(), 453eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard stringWithUTF8String, NSStringPointer, 454eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ResultTInfo, NSStringDecl, 455eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isInstance=*/false, /*isVariadic=*/false, 456eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isSynthesized=*/false, 457eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isImplicitlyDeclared=*/true, 458eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isDefined=*/false, 459eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl::Required, 460eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*HasRelatedResultType=*/false); 461eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ParmVarDecl *value = 462eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ParmVarDecl::Create(Context, M, 463eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceLocation(), SourceLocation(), 464eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard &Context.Idents.get("value"), 465eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Context.getPointerType(Context.CharTy.withConst()), 466eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*TInfo=*/0, 467eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SC_None, SC_None, 0); 468eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard M->setMethodParams(Context, value, ArrayRef<SourceLocation>()); 469eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard StringWithUTF8StringMethod = M; 470eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 471eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard assert(StringWithUTF8StringMethod && 472eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard "StringWithUTF8StringMethod should not be NULL"); 473eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 474eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 475eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod = StringWithUTF8StringMethod; 476eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxedType = NSStringPointer; 477eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 478eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (isa<BuiltinType>(ValueType)) { 479eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // The other types we support are numeric, char and BOOL/bool. We could also 480eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // provide limited support for structure types, such as NSRange, NSRect, and 481eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // NSSize. See NSValue (NSValueGeometryExtensions) in <Foundation/NSGeometry.h> 482eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // for more details. 483eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 484eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Check for a top-level character literal. 485eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (const CharacterLiteral *Char = 486eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard dyn_cast<CharacterLiteral>(ValueExpr->IgnoreParens())) { 487eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // In C, character literals have type 'int'. That's not the type we want 488eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // to use to determine the Objective-c literal kind. 489eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard switch (Char->getKind()) { 490eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::Ascii: 491eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.CharTy; 492eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 493eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 494eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::Wide: 495eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.getWCharType(); 496eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 497eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 498eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::UTF16: 499eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.Char16Ty; 500eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 501eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 502eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::UTF32: 503eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.Char32Ty; 504eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 505eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 506eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 507eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 508eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // FIXME: Do I need to do anything special with BoolTy expressions? 509eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 510eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look for the appropriate method within NSNumber. 511eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod = getNSNumberFactoryMethod(*this, SR.getBegin(), ValueType); 512eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxedType = NSNumberPointer; 513eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 514eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 515eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!BoxingMethod) { 516eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_objc_illegal_boxed_expression_type) 517eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << ValueType << ValueExpr->getSourceRange(); 518eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 519eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 520eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 521eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to the type that the parameter requires. 522eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType ArgType = BoxingMethod->param_begin()[0]->getType(); 523eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ExprResult ConvertedValueExpr = PerformImplicitConversion(ValueExpr, ArgType, 524eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard AA_Sending); 525eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ConvertedValueExpr.isInvalid()) 526eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 527eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = ConvertedValueExpr.get(); 528eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 529eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 530eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(ValueExpr, BoxedType, 531eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod, SR); 532eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return MaybeBindToTemporary(BoxedExpr); 533eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard} 534eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 535ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCSubscriptExpression(SourceLocation RB, Expr *BaseExpr, 536ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *IndexExpr, 537ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *getterMethod, 538ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *setterMethod) { 539ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Feature support is for modern abi. 540ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!LangOpts.ObjCNonFragileABI) 541ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 542ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If the expression is type-dependent, there's nothing for us to do. 543ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek assert ((!BaseExpr->isTypeDependent() && !IndexExpr->isTypeDependent()) && 544ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek "base or index cannot have dependent type here"); 545ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = CheckPlaceholderExpr(IndexExpr); 546ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 547ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 548ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr = Result.get(); 549ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 550ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Perform lvalue-to-rvalue conversion. 551ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = DefaultLvalueConversion(BaseExpr); 552ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 553ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 554ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr = Result.get(); 555ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Owned(ObjCSubscriptRefExpr::Create(Context, 556ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr, 557ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr, 558ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.PseudoObjectTy, 559ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek getterMethod, 560ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek setterMethod, RB)); 561ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 562ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 563ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 564ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCArrayLiteral(SourceRange SR, MultiExprArg Elements) { 565ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSArray class, if we haven't done so already. 566ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 567ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 568ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 569ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), 570ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek LookupOrdinaryName); 571ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 5724e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSArrayDecl && getLangOpts().DebuggerObjCLiteral) 573ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = ObjCInterfaceDecl::Create (Context, 574ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 575ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 576ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 577ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0, SourceLocation()); 578ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 579ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 580ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsarray); 581ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 582ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 583ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 584ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 585ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the arrayWithObjects:count: method, if we haven't done so already. 586ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 587ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod) { 588ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector 589ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sel = NSAPIObj->getNSArraySelector(NSAPI::NSArr_arrayWithObjectsCount); 590ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ArrayWithObjectsMethod = NSArrayDecl->lookupClassMethod(Sel); 5914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!ArrayWithObjectsMethod && getLangOpts().DebuggerObjCLiteral) { 592ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek TypeSourceInfo *ResultTInfo = 0; 593ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ArrayWithObjectsMethod = 594ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Create(Context, 595ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 596ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 597ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultTInfo, 598ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 599ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 600ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isSynthesized=*/false, 601ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 602ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 603ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 604ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 2> Params; 605ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *objects = ParmVarDecl::Create(Context, ArrayWithObjectsMethod, 606ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 607ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &Context.Idents.get("objects"), 608ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getPointerType(IdT), 609ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*TInfo=*/0, 610ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 611ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 612ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0); 613ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 614ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *cnt = ParmVarDecl::Create(Context, ArrayWithObjectsMethod, 615ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 616ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &Context.Idents.get("cnt"), 617ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.UnsignedLongTy, 618ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*TInfo=*/0, 619ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 620ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 621ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0); 622ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 623ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ArrayWithObjectsMethod->setMethodParams(Context, Params, 624ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ArrayRef<SourceLocation>()); 625ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 626ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 627ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 628ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 629ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod) { 630ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_arraywithobjects) << Sel; 631ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 632ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 633ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 634ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 635ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure the return type is reasonable. 636ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod->getResultType()->isObjCObjectPointerType()) { 637ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 638ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << ArrayWithObjectsMethod->getSelector(); 639ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(ArrayWithObjectsMethod->getLocation(), 640ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_return) 641ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << ArrayWithObjectsMethod->getResultType(); 642ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 643ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 644ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 645ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Dig out the type that all elements should be converted to. 646ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType T = ArrayWithObjectsMethod->param_begin()[0]->getType(); 647ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const PointerType *PtrT = T->getAs<PointerType>(); 648ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!PtrT || 649ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Context.hasSameUnqualifiedType(PtrT->getPointeeType(), IdT)) { 650ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 651ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << ArrayWithObjectsMethod->getSelector(); 652ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(ArrayWithObjectsMethod->param_begin()[0]->getLocation(), 653ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 654ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 0 << T 655ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Context.getPointerType(IdT.withConst()); 656ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 657ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 658ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek T = PtrT->getPointeeType(); 659ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 660ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that the 'count' parameter is integral. 661ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod->param_begin()[1]->getType()->isIntegerType()) { 662ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 663ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << ArrayWithObjectsMethod->getSelector(); 664ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(ArrayWithObjectsMethod->param_begin()[1]->getLocation(), 665ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 666ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 1 667ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << ArrayWithObjectsMethod->param_begin()[1]->getType() 668ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << "integral"; 669ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 670ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 671ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 672ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the elements provided is valid in a collection literal, 673ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // performing conversions as necessary. 674ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr **ElementsBuffer = Elements.get(); 675ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = Elements.size(); I != N; ++I) { 676ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Converted = CheckObjCCollectionLiteralElement(*this, 677ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I], 678ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek T); 679ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Converted.isInvalid()) 680ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 681ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 682ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I] = Converted.get(); 683ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 684ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 685ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 686ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 687ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSArrayDecl)); 688ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 689ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 690ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCArrayLiteral::Create(Context, 691ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::makeArrayRef(Elements.get(), 692ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements.size()), 693ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Ty, ArrayWithObjectsMethod, SR)); 694ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 695ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 696ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCDictionaryLiteral(SourceRange SR, 697ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryElement *Elements, 698ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned NumElements) { 699ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSDictionary class, if we haven't done so already. 700ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 701ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 702ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 703ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), LookupOrdinaryName); 704ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 7054e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSDictionaryDecl && getLangOpts().DebuggerObjCLiteral) 706ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = ObjCInterfaceDecl::Create (Context, 707ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 708ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 709ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 710ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0, SourceLocation()); 711ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 712ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 713ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsdictionary); 714ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 715ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 716ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 717ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 718ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the dictionaryWithObjects:forKeys:count: method, if we haven't done 719ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // so already. 720ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 721ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod) { 722ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = NSAPIObj->getNSDictionarySelector( 723ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPI::NSDict_dictionaryWithObjectsForKeysCount); 724ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DictionaryWithObjectsMethod = NSDictionaryDecl->lookupClassMethod(Sel); 7254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!DictionaryWithObjectsMethod && getLangOpts().DebuggerObjCLiteral) { 726ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DictionaryWithObjectsMethod = 727ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Create(Context, 728ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 729ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 730ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0 /*TypeSourceInfo */, 731ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 732ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 733ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isSynthesized=*/false, 734ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 735ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 736ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 737ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 3> Params; 738ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *objects = ParmVarDecl::Create(Context, DictionaryWithObjectsMethod, 739ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 740ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &Context.Idents.get("objects"), 741ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getPointerType(IdT), 742ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*TInfo=*/0, 743ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 744ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 745ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0); 746ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 747ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *keys = ParmVarDecl::Create(Context, DictionaryWithObjectsMethod, 748ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 749ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &Context.Idents.get("keys"), 750ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getPointerType(IdT), 751ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*TInfo=*/0, 752ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 753ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 754ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0); 755ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(keys); 756ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *cnt = ParmVarDecl::Create(Context, DictionaryWithObjectsMethod, 757ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 758ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek &Context.Idents.get("cnt"), 759ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.UnsignedLongTy, 760ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*TInfo=*/0, 761ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 762ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SC_None, 763ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0); 764ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 765ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DictionaryWithObjectsMethod->setMethodParams(Context, Params, 766ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ArrayRef<SourceLocation>()); 767ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 768ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 769ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod) { 770ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_dictwithobjects) << Sel; 771ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 772ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 773ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 774ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 775ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure the return type is reasonable. 776ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod->getResultType()->isObjCObjectPointerType()){ 777ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 778ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << DictionaryWithObjectsMethod->getSelector(); 779ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(DictionaryWithObjectsMethod->getLocation(), 780ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_return) 781ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << DictionaryWithObjectsMethod->getResultType(); 782ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 783ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 784ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 785ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Dig out the type that all values should be converted to. 786ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType ValueT = DictionaryWithObjectsMethod->param_begin()[0]->getType(); 787ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const PointerType *PtrValue = ValueT->getAs<PointerType>(); 788ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!PtrValue || 789ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Context.hasSameUnqualifiedType(PtrValue->getPointeeType(), IdT)) { 790ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 791ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << DictionaryWithObjectsMethod->getSelector(); 792ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(DictionaryWithObjectsMethod->param_begin()[0]->getLocation(), 793ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 794ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 0 << ValueT 795ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Context.getPointerType(IdT.withConst()); 796ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 797ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 798ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ValueT = PtrValue->getPointeeType(); 799ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 800ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Dig out the type that all keys should be converted to. 801ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType KeyT = DictionaryWithObjectsMethod->param_begin()[1]->getType(); 802ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const PointerType *PtrKey = KeyT->getAs<PointerType>(); 803ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!PtrKey || 804ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 805ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT)) { 806ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool err = true; 807ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (PtrKey) { 808ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (QIDNSCopying.isNull()) { 809ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // key argument of selector is id<NSCopying>? 810ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (ObjCProtocolDecl *NSCopyingPDecl = 811ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek LookupProtocol(&Context.Idents.get("NSCopying"), SR.getBegin())) { 812ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCProtocolDecl *PQ[] = {NSCopyingPDecl}; 813ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QIDNSCopying = 814ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 815ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek (ObjCProtocolDecl**) PQ,1); 816ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QIDNSCopying = Context.getObjCObjectPointerType(QIDNSCopying); 817ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 818ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 819ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!QIDNSCopying.isNull()) 820ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek err = !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 821ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QIDNSCopying); 822ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 823ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 824ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (err) { 825ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 826ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << DictionaryWithObjectsMethod->getSelector(); 827ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(DictionaryWithObjectsMethod->param_begin()[1]->getLocation(), 828ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 829ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 1 << KeyT 830ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Context.getPointerType(IdT.withConst()); 831ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 832ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 833ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 834ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek KeyT = PtrKey->getPointeeType(); 835ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 836ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that the 'count' parameter is integral. 837ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod->param_begin()[2]->getType() 838ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ->isIntegerType()) { 839ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 840ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << DictionaryWithObjectsMethod->getSelector(); 841ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(DictionaryWithObjectsMethod->param_begin()[2]->getLocation(), 842ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 843ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 2 844ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << DictionaryWithObjectsMethod->param_begin()[2]->getType() 845ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << "integral"; 846ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 847ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 848ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 849ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the keys and values provided is valid in a collection 850ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // literal, performing conversions as necessary. 851ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool HasPackExpansions = false; 852ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = NumElements; I != N; ++I) { 853ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the key. 854ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Key = CheckObjCCollectionLiteralElement(*this, Elements[I].Key, 855ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek KeyT); 856ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Key.isInvalid()) 857ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 858ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 859ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the value. 860ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Value 861ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = CheckObjCCollectionLiteralElement(*this, Elements[I].Value, ValueT); 862ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Value.isInvalid()) 863ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 864ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 865ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Key = Key.get(); 866ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value = Value.get(); 867ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 868ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Elements[I].EllipsisLoc.isInvalid()) 869ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek continue; 870ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 871ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Elements[I].Key->containsUnexpandedParameterPack() && 872ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Elements[I].Value->containsUnexpandedParameterPack()) { 873ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(Elements[I].EllipsisLoc, 874ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_pack_expansion_without_parameter_packs) 875ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << SourceRange(Elements[I].Key->getLocStart(), 876ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value->getLocEnd()); 877ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 878ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 879ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 880ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions = true; 881ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 882ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 883ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 884ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 885ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 886ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSDictionaryDecl)); 887ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 888ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryLiteral::Create(Context, 889ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::makeArrayRef(Elements, 890ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumElements), 891ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions, 892ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Ty, 893ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DictionaryWithObjectsMethod, SR)); 89485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 89585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 8963b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios KyrtzidisExprResult Sema::BuildObjCEncodeExpression(SourceLocation AtLoc, 89781d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *EncodedTypeInfo, 898fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson SourceLocation RParenLoc) { 89981d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = EncodedTypeInfo->getType(); 900fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson QualType StrTy; 9011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EncodedType->isDependentType()) 902fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.DependentTy; 903fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson else { 9046c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian if (!EncodedType->getAsArrayTypeUnsafe() && //// Incomplete array is handled. 9056c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian !EncodedType->isVoidType()) // void is handled too. 9063b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis if (RequireCompleteType(AtLoc, EncodedType, 9073b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis PDiag(diag::err_incomplete_type_objc_at_encode) 9083b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis << EncodedTypeInfo->getTypeLoc().getSourceRange())) 9093b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis return ExprError(); 9103b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis 911fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson std::string Str; 912fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson Context.getObjCEncodingForType(EncodedType, Str); 913fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 914fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // The type of @encode is the same as the type of the corresponding string, 915fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // which is an array type. 916fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.CharTy; 917fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // A C++ string literal has a const-qualified element type (C++ 2.13.4p1). 9184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) 919fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy.addConst(); 920fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.getConstantArrayType(StrTy, llvm::APInt(32, Str.size()+1), 921fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson ArrayType::Normal, 0); 922fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson } 9231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92481d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return new (Context) ObjCEncodeExpr(StrTy, EncodedTypeInfo, AtLoc, RParenLoc); 925fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson} 926fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 927f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCEncodeExpression(SourceLocation AtLoc, 928f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation EncodeLoc, 929f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 930f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ParsedType ty, 931f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 932e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info ? 93381d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *TInfo; 93481d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = GetTypeFromParser(ty, &TInfo); 93581d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor if (!TInfo) 93681d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TInfo = Context.getTrivialTypeSourceInfo(EncodedType, 93781d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor PP.getLocForEndOfToken(LParenLoc)); 93885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 93981d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return BuildObjCEncodeExpression(AtLoc, TInfo, RParenLoc); 94085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 94185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 942f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCSelectorExpression(Selector Sel, 943f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 944f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation SelLoc, 945f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 946f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCMethodDecl *Method = LookupInstanceMethodInGlobalPool(Sel, 9486b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LParenLoc, RParenLoc), false, false); 9497ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian if (!Method) 9507ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 9517ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian SourceRange(LParenLoc, RParenLoc)); 9527ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian if (!Method) 9537ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian Diag(SelLoc, diag::warn_undeclared_selector) << Sel; 9544c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian 9554c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian if (!Method || 9564c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian Method->getImplementationControl() != ObjCMethodDecl::Optional) { 9574c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian llvm::DenseMap<Selector, SourceLocation>::iterator Pos 9584c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian = ReferencedSelectors.find(Sel); 9594c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian if (Pos == ReferencedSelectors.end()) 9604c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian ReferencedSelectors.insert(std::make_pair(Sel, SelLoc)); 9614c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian } 9623fe104154dd2e8ffb351142d74f308938b5c99bfFariborz Jahanian 963f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from using @selector for 964f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount. 9654e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 966f85e193739c953358c865005855253af4f68a497John McCall switch (Sel.getMethodFamily()) { 967f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 968f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 969f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 970f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 971f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 972f85e193739c953358c865005855253af4f68a497John McCall Diag(AtLoc, diag::err_arc_illegal_selector) << 973f85e193739c953358c865005855253af4f68a497John McCall Sel << SourceRange(LParenLoc, RParenLoc); 974f85e193739c953358c865005855253af4f68a497John McCall break; 975f85e193739c953358c865005855253af4f68a497John McCall 976f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 977f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 978f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 97980cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 980f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 981f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 982f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 983f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 9849670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 985f85e193739c953358c865005855253af4f68a497John McCall break; 986f85e193739c953358c865005855253af4f68a497John McCall } 987f85e193739c953358c865005855253af4f68a497John McCall } 988a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCSelType(); 9896d5a1c28593443f3973ef38f8fa042d59182412dDaniel Dunbar return new (Context) ObjCSelectorExpr(Ty, Sel, AtLoc, RParenLoc); 99085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 99185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 992f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCProtocolExpression(IdentifierInfo *ProtocolId, 993f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 994f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation ProtoLoc, 995f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 996f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 997c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor ObjCProtocolDecl* PDecl = LookupProtocol(ProtocolId, ProtoLoc); 99885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner if (!PDecl) { 9993c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner Diag(ProtoLoc, diag::err_undeclared_protocol) << ProtocolId; 100085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 100185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1003a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCProtoType(); 1004a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (Ty.isNull()) 100585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 100614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 1007a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner return new (Context) ObjCProtocolExpr(Ty, PDecl, AtLoc, RParenLoc); 100885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 100985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 101026743b20e4a8c2a986e6453f0c38beba0afef633John McCall/// Try to capture an implicit reference to 'self'. 1011b942cb24a060435b18fef5b43eb33d77afc0d03aEli FriedmanObjCMethodDecl *Sema::tryCaptureObjCSelf(SourceLocation Loc) { 1012b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman DeclContext *DC = getFunctionLevelDeclContext(); 101326743b20e4a8c2a986e6453f0c38beba0afef633John McCall 101426743b20e4a8c2a986e6453f0c38beba0afef633John McCall // If we're not in an ObjC method, error out. Note that, unlike the 101526743b20e4a8c2a986e6453f0c38beba0afef633John McCall // C++ case, we don't require an instance method --- class methods 101626743b20e4a8c2a986e6453f0c38beba0afef633John McCall // still have a 'self', and we really do still need to capture it! 101726743b20e4a8c2a986e6453f0c38beba0afef633John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(DC); 101826743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (!method) 101926743b20e4a8c2a986e6453f0c38beba0afef633John McCall return 0; 102026743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1021999713eea940f4e087cc3ac878689c5c5c7a7225Douglas Gregor tryCaptureVariable(method->getSelfDecl(), Loc); 102226743b20e4a8c2a986e6453f0c38beba0afef633John McCall 102326743b20e4a8c2a986e6453f0c38beba0afef633John McCall return method; 102426743b20e4a8c2a986e6453f0c38beba0afef633John McCall} 102526743b20e4a8c2a986e6453f0c38beba0afef633John McCall 10265c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregorstatic QualType stripObjCInstanceType(ASTContext &Context, QualType T) { 10275c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor if (T == Context.getObjCInstanceType()) 10285c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return Context.getObjCIdType(); 10295c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 10305c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return T; 10315c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor} 10325c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 1033926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas GregorQualType Sema::getMessageSendResultType(QualType ReceiverType, 1034926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ObjCMethodDecl *Method, 1035926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage) { 1036926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor assert(Method && "Must have a method"); 1037926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1038926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Method->getSendResultType(); 1039926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1040926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // If a method has a related return type: 1041926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the method found is an instance method, but the message send 1042926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // was a class message send, T is the declared return type of the method 1043926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // found 1044926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Method->isInstanceMethod() && isClassMessage) 10455c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1046926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1047926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is super, T is a pointer to the class of the 1048926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // enclosing method definition 1049926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (isSuperMessage) { 1050926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCMethodDecl *CurMethod = getCurMethodDecl()) 1051926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCInterfaceDecl *Class = CurMethod->getClassInterface()) 1052926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType( 1053926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(Class)); 1054926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor } 1055926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1056926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is the name of a class U, T is a pointer to U 1057926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->getAs<ObjCInterfaceType>() || 1058926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedInterfaceType()) 1059926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType(ReceiverType); 1060926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is of type Class or qualified Class type, 1061926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // T is the declared return type of the method. 1062926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->isObjCClassType() || 1063926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedClassType()) 10645c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1065926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1066926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is id, qualified id, Class, or qualified Class, T 1067926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // is the receiver type, otherwise 1068926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - T is the type of the receiver expression. 1069926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return ReceiverType; 1070926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 1071926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1072926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorvoid Sema::EmitRelatedResultTypeNote(const Expr *E) { 1073926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor E = E->IgnoreParenImpCasts(); 1074926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMessageExpr *MsgSend = dyn_cast<ObjCMessageExpr>(E); 1075926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!MsgSend) 1076926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1077926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1078926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMethodDecl *Method = MsgSend->getMethodDecl(); 1079926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method) 1080926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1081926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1082926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1083926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1084926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1085926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Context.hasSameUnqualifiedType(Method->getResultType() 1086926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor .getNonReferenceType(), 1087926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor MsgSend->getType())) 1088926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1089926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1090e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor if (!Context.hasSameUnqualifiedType(Method->getResultType(), 1091e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Context.getObjCInstanceType())) 1092e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return; 1093e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 1094926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Diag(Method->getLocation(), diag::note_related_result_type_inferred) 1095926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << Method->isInstanceMethod() << Method->getSelector() 1096926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << MsgSend->getType(); 1097926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 109826743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1099926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorbool Sema::CheckMessageArgumentTypes(QualType ReceiverType, 1100926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Expr **Args, unsigned NumArgs, 11011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Selector Sel, ObjCMethodDecl *Method, 1102926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage, 1103637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar SourceLocation lbrac, SourceLocation rbrac, 1104f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType &ReturnType, ExprValueKind &VK) { 1105637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar if (!Method) { 11066660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar // Apply default argument promotion as for (C99 6.5.2.2p6). 110792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor for (unsigned i = 0; i != NumArgs; i++) { 110892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 110992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 111092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1111429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultArgumentPromotion(Args[i]); 1112429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1113429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return true; 1114429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Args[i] = Result.take(); 111592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 11166660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar 1117f85e193739c953358c865005855253af4f68a497John McCall unsigned DiagID; 11184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1119f85e193739c953358c865005855253af4f68a497John McCall DiagID = diag::err_arc_method_not_found; 1120f85e193739c953358c865005855253af4f68a497John McCall else 1121f85e193739c953358c865005855253af4f68a497John McCall DiagID = isClassMessage ? diag::warn_class_method_not_found 1122f85e193739c953358c865005855253af4f68a497John McCall : diag::warn_inst_method_not_found; 11234e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().DebuggerSupport) 1124819e74544a326b90d13aa73e6497b187c6545ff5John McCall Diag(lbrac, DiagID) 1125819e74544a326b90d13aa73e6497b187c6545ff5John McCall << Sel << isClassMessage << SourceRange(lbrac, rbrac); 112648218c60d6b53b7880917d1366ee716dec2145caJohn McCall 112748218c60d6b53b7880917d1366ee716dec2145caJohn McCall // In debuggers, we want to use __unknown_anytype for these 112848218c60d6b53b7880917d1366ee716dec2145caJohn McCall // results so that clients can cast them. 11294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DebuggerSupport) { 113048218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.UnknownAnyTy; 113148218c60d6b53b7880917d1366ee716dec2145caJohn McCall } else { 113248218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.getObjCIdType(); 113348218c60d6b53b7880917d1366ee716dec2145caJohn McCall } 1134f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = VK_RValue; 1135637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar return false; 1136637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar } 11371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1138926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType = getMessageSendResultType(ReceiverType, Method, isClassMessage, 1139926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor isSuperMessage); 1140f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = Expr::getValueKindForType(Method->getResultType()); 11411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114291e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar unsigned NumNamedArgs = Sel.getNumArgs(); 11434f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // Method might have more arguments than selector indicates. This is due 11444f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // to addition of c-style arguments in method. 11454f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (Method->param_size() > Sel.getNumArgs()) 11464f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian NumNamedArgs = Method->param_size(); 11474f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // FIXME. This need be cleaned up. 11484f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (NumArgs < NumNamedArgs) { 1149f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Diag(lbrac, diag::err_typecheck_call_too_few_args) 1150f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall << 2 << NumNamedArgs << NumArgs; 11514f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian return false; 11524f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian } 115391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 1154312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner bool IsError = false; 115591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar for (unsigned i = 0; i < NumNamedArgs; i++) { 115692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // We can't do any type-checking on a type-dependent argument. 115792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 115892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 115992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 116085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner Expr *argExpr = Args[i]; 116192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 11625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ParmVarDecl *param = Method->param_begin()[i]; 116385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner assert(argExpr && "CheckMessageArgumentTypes(): missing expression"); 11641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Strip the unbridged-cast placeholder expression off unless it's 11665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // a consumed argument. 11675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (argExpr->hasPlaceholderType(BuiltinType::ARCUnbridgedCast) && 11685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall !param->hasAttr<CFConsumedAttr>()) 11695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall argExpr = stripARCUnbridgedCast(argExpr); 11705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 1171688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (RequireCompleteType(argExpr->getSourceRange().getBegin(), 11725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param->getType(), 1173688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor PDiag(diag::err_call_incomplete_argument) 1174688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor << argExpr->getSourceRange())) 1175688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor return true; 1176688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor 1177745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 11785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param); 11793fa5cae9b3812cab9fab6c042c3329bb70a3d046John McCall ExprResult ArgE = PerformCopyInitialization(Entity, lbrac, Owned(argExpr)); 1180688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (ArgE.isInvalid()) 1181688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor IsError = true; 1182688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor else 1183688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor Args[i] = ArgE.takeAs<Expr>(); 118485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 118591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 118691e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Promote additional arguments to variadic methods. 118791e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (Method->isVariadic()) { 118892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor for (unsigned i = NumNamedArgs; i < NumArgs; ++i) { 118992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 119092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 119192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1192429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Arg = DefaultVariadicArgumentPromotion(Args[i], VariadicMethod, 0); 1193429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley IsError |= Arg.isInvalid(); 1194429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Args[i] = Arg.take(); 119592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 119691e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } else { 119791e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Check for extra arguments to non-variadic methods. 119891e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (NumArgs != NumNamedArgs) { 11991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Args[NumNamedArgs]->getLocStart(), 1200fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner diag::err_typecheck_call_too_many_args) 1201ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << 2 /*method*/ << NumNamedArgs << NumArgs 1202ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << Method->getSourceRange() 1203fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << SourceRange(Args[NumNamedArgs]->getLocStart(), 1204fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner Args[NumArgs-1]->getLocEnd()); 120591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 120691e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 120791e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 12082725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor DiagnoseSentinelCalls(Method, lbrac, Args, NumArgs); 120929c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 121029c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas // Do additional checkings on method. 121129c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas IsError |= CheckObjCMethodCall(Method, lbrac, Args, NumArgs); 121229c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 1213312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner return IsError; 121485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 121585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1216c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregorbool Sema::isSelfExpr(Expr *receiver) { 1217f2d74cc083e1a83838acf99d2e1ca260d1c54742Fariborz Jahanian // 'self' is objc 'self' in an objc method only. 12184b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMethodDecl *method = 12194b9c2d235fb9449e249d74f48ecfec601650de93John McCall dyn_cast<ObjCMethodDecl>(CurContext->getNonClosureAncestor()); 12204b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!method) return false; 12214b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1222f85e193739c953358c865005855253af4f68a497John McCall receiver = receiver->IgnoreParenLValueCasts(); 1223f85e193739c953358c865005855253af4f68a497John McCall if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(receiver)) 12244b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (DRE->getDecl() == method->getSelfDecl()) 1225c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return true; 1226c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return false; 12276b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff} 12286b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff 1229f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff// Helper method for ActOnClassMethod/ActOnInstanceMethod. 1230f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff// Will search "local" class/category implementations for a method decl. 1231175ba1e8180083927aabd7cc8137baa16be75646Fariborz Jahanian// If failed, then we search in class's root for an instance method. 1232f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff// Returns 0 if no method is found. 12335609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve NaroffObjCMethodDecl *Sema::LookupPrivateClassMethod(Selector Sel, 1234f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff ObjCInterfaceDecl *ClassDecl) { 1235f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff ObjCMethodDecl *Method = 0; 12365609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // lookup in class and all superclasses 12375609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff while (ClassDecl && !Method) { 123887018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 123917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Method = ImpDecl->getClassMethod(Sel); 12401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12415609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // Look through local category implementations associated with the class. 12421cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Method) 12431cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Method = ClassDecl->getCategoryClassMethod(Sel); 12441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12455609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // Before we give up, check if the selector is an instance method. 12465609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // But only in the root. This matches gcc's behaviour and what the 12475609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // runtime expects. 12485609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff if (!Method && !ClassDecl->getSuperClass()) { 124917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Method = ClassDecl->lookupInstanceMethod(Sel); 12501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Look through local category implementations associated 12515609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // with the root class. 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Method) 12535609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff Method = LookupPrivateInstanceMethod(Sel, ClassDecl); 1254f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff } 12551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12565609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ClassDecl = ClassDecl->getSuperClass(); 1257f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff } 12585609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff return Method; 12595609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff} 12605609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff 12615609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve NaroffObjCMethodDecl *Sema::LookupPrivateInstanceMethod(Selector Sel, 12625609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ObjCInterfaceDecl *ClassDecl) { 12632e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor if (!ClassDecl->hasDefinition()) 12642e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor return 0; 12652e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor 12665609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ObjCMethodDecl *Method = 0; 12675609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff while (ClassDecl && !Method) { 12685609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // If we have implementations in scope, check "private" methods. 126987018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 127017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Method = ImpDecl->getInstanceMethod(Sel); 12711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12725609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // Look through local category implementations associated with the class. 12731cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Method) 12741cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Method = ClassDecl->getCategoryInstanceMethod(Sel); 12755609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ClassDecl = ClassDecl->getSuperClass(); 1276175ba1e8180083927aabd7cc8137baa16be75646Fariborz Jahanian } 1277f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff return Method; 1278f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff} 1279f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff 12803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall/// LookupMethodInType - Look up a method in an ObjCObjectType. 12813c3b7f90a863af43fa63043d396553ecf205351cJohn McCallObjCMethodDecl *Sema::LookupMethodInObjectType(Selector sel, QualType type, 12823c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isInstance) { 12833c3b7f90a863af43fa63043d396553ecf205351cJohn McCall const ObjCObjectType *objType = type->castAs<ObjCObjectType>(); 12843c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCInterfaceDecl *iface = objType->getInterface()) { 12853c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Look it up in the main interface (and categories, etc.) 12863c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = iface->lookupMethod(sel, isInstance)) 12873c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 12883c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 12893c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Okay, look for "private" methods declared in any 12903c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // @implementations we've seen. 12913c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (isInstance) { 12923c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = LookupPrivateInstanceMethod(sel, iface)) 12933c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 12943c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } else { 12953c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = LookupPrivateClassMethod(sel, iface)) 12963c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 12973c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 12983c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 12993c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 13003c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Check qualifiers. 13013c3b7f90a863af43fa63043d396553ecf205351cJohn McCall for (ObjCObjectType::qual_iterator 13023c3b7f90a863af43fa63043d396553ecf205351cJohn McCall i = objType->qual_begin(), e = objType->qual_end(); i != e; ++i) 13033c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = (*i)->lookupMethod(sel, isInstance)) 13043c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 13053c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 13063c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return 0; 13073c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 13083c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 130961478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// LookupMethodInQualifiedType - Lookups up a method in protocol qualifier 131061478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// list of a qualified objective pointer type. 131161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz JahanianObjCMethodDecl *Sema::LookupMethodInQualifiedType(Selector Sel, 131261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian const ObjCObjectPointerType *OPT, 131361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian bool Instance) 131461478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian{ 131561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian ObjCMethodDecl *MD = 0; 131661478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 131761478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian E = OPT->qual_end(); I != E; ++I) { 131861478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian ObjCProtocolDecl *PROTO = (*I); 131961478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian if ((MD = PROTO->lookupMethod(Sel, Instance))) { 132061478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return MD; 132161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 132261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 132361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return 0; 132461478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian} 132561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian 13267f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// HandleExprPropertyRefExpr - Handle foo.bar where foo is a pointer to an 13277f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// objective C interface. This is a property reference expression. 132860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 13297f81652f97a69ae8b514893a69c0245253687e55Chris LattnerHandleExprPropertyRefExpr(const ObjCObjectPointerType *OPT, 13306326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Expr *BaseExpr, SourceLocation OpLoc, 13316326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian DeclarationName MemberName, 13328ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation MemberLoc, 13338ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation SuperLoc, QualType SuperType, 13348ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian bool Super) { 13357f81652f97a69ae8b514893a69c0245253687e55Chris Lattner const ObjCInterfaceType *IFaceT = OPT->getInterfaceType(); 13367f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCInterfaceDecl *IFace = IFaceT->getDecl(); 1337109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor 1338109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor if (MemberName.getNameKind() != DeclarationName::Identifier) { 1339109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor Diag(MemberLoc, diag::err_invalid_property_name) 1340109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor << MemberName << QualType(OPT, 0); 1341109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor return ExprError(); 1342109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor } 1343109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor 13447f81652f97a69ae8b514893a69c0245253687e55Chris Lattner IdentifierInfo *Member = MemberName.getAsIdentifierInfo(); 1345b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange BaseRange = Super? SourceRange(SuperLoc) 1346b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : BaseExpr->getSourceRange(); 1347b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OPT->getPointeeType(), 1348b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor PDiag(diag::err_property_not_found_forward_class) 1349b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << MemberName << BaseRange)) 13508b1aba495744bea7093899a65f08c3987263061cFariborz Jahanian return ExprError(); 1351b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 13527f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Search for a declared property first. 13537f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (ObjCPropertyDecl *PD = IFace->FindPropertyDeclaration(Member)) { 13547f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 13557f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 13567f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 1357926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 13588ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 13593c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, 1360f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, OK_ObjCProperty, 13618ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, 13628ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType)); 13638ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 13643c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, 1365f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, OK_ObjCProperty, 13668ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, BaseExpr)); 13677f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 13687f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check protocols on qualified interfaces. 13697f81652f97a69ae8b514893a69c0245253687e55Chris Lattner for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 13707f81652f97a69ae8b514893a69c0245253687e55Chris Lattner E = OPT->qual_end(); I != E; ++I) 13717f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (ObjCPropertyDecl *PD = (*I)->FindPropertyDeclaration(Member)) { 13727f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 13737f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 13747f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 1375926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 13768ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 13773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, 13783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 1379f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, 1380f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OK_ObjCProperty, 1381f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall MemberLoc, 1382f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SuperLoc, SuperType)); 13838ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 13843c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, 13853c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 1386f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, 1387f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OK_ObjCProperty, 13888ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, 13898ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian BaseExpr)); 13907f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 13917f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If that failed, look for an "implicit" property by seeing if the nullary 13927f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // selector is implemented. 13937f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 13947f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // FIXME: The logic for looking up nullary and unary selectors should be 13957f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // shared with the code in ActOnInstanceMessage. 13967f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 13977f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector Sel = PP.getSelectorTable().getNullarySelector(Member); 13987f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Getter = IFace->lookupInstanceMethod(Sel); 139927569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 140027569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 140127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Getter) 140227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Getter = LookupMethodInQualifiedType(Sel, OPT, true); 14037f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14047f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, check for 'private' methods. 14057f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Getter) 140674b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Getter = IFace->lookupPrivateMethod(Sel); 14077f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14087f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Look through local category implementations associated with the class. 14097f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Getter) 14107f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Getter = IFace->getCategoryInstanceMethod(Sel); 14117f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Getter) { 14127f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check if we can reference this property. 14137f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(Getter, MemberLoc)) 14147f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14157f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14167f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If we found a getter then this may be a valid dot-reference, we 14177f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // will look for the matching setter, in case it is needed. 14187f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector SetterSel = 14197f81652f97a69ae8b514893a69c0245253687e55Chris Lattner SelectorTable::constructSetterName(PP.getIdentifierTable(), 14207f81652f97a69ae8b514893a69c0245253687e55Chris Lattner PP.getSelectorTable(), Member); 14217f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Setter = IFace->lookupInstanceMethod(SetterSel); 142227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 142327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 142427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Setter) 142527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Setter = LookupMethodInQualifiedType(SetterSel, OPT, true); 142627569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 14277f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Setter) { 14287f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, also check for 'private' 14297f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // methods. 143074b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Setter = IFace->lookupPrivateMethod(SetterSel); 14317f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14327f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Look through local category implementations associated with the class. 14337f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Setter) 14347f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Setter = IFace->getCategoryInstanceMethod(SetterSel); 143527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 14367f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Setter && DiagnoseUseOfDecl(Setter, MemberLoc)) 14377f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14387f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 143999130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Getter || Setter) { 14408ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 144112f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 14423c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 14433c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 144412f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall MemberLoc, 144512f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall SuperLoc, SuperType)); 14468ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 144712f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 14483c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 14493c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 145012f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall MemberLoc, BaseExpr)); 14518ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian 14527f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14537f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14547f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Attempt to correct for typos in property names. 14552f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain DeclFilterCCC<ObjCPropertyDecl> Validator; 14562f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (TypoCorrection Corrected = CorrectTypo( 1457d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationNameInfo(MemberName, MemberLoc), LookupOrdinaryName, NULL, 145816e46dd0c284296cea819dfbf67942ecef02894dKaelyn Uhrain NULL, Validator, IFace, false, OPT)) { 14592f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCPropertyDecl *Property = 14602f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Corrected.getCorrectionDeclAs<ObjCPropertyDecl>(); 1461d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationName TypoResult = Corrected.getCorrection(); 14627f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found_suggest) 1463b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner << MemberName << QualType(OPT, 0) << TypoResult 1464b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner << FixItHint::CreateReplacement(MemberLoc, TypoResult.getAsString()); 14657f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Property->getLocation(), diag::note_previous_decl) 14667f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << Property->getDeclName(); 14676326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return HandleExprPropertyRefExpr(OPT, BaseExpr, OpLoc, 14686326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian TypoResult, MemberLoc, 14698ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType, Super); 14707f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 147141aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared; 147241aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (ObjCIvarDecl *Ivar = 147341aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian IFace->lookupInstanceVariable(Member, ClassDeclared)) { 147441aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian QualType T = Ivar->getType(); 147541aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (const ObjCObjectPointerType * OBJPT = 147641aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian T->getAsObjCInterfacePointerType()) { 1477b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OBJPT->getPointeeType(), 1478b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor PDiag(diag::err_property_not_as_forward_class) 1479b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << MemberName << BaseExpr->getSourceRange())) 1480b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 148141aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 14826326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Diag(MemberLoc, 14836326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian diag::err_ivar_access_using_property_syntax_suggest) 14846326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << MemberName << QualType(OPT, 0) << Ivar->getDeclName() 14856326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << FixItHint::CreateReplacement(OpLoc, "->"); 14866326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return ExprError(); 148741aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 1488b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner 14897f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found) 14907f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << MemberName << QualType(OPT, 0); 149199130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Setter) 14927f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Setter->getLocation(), diag::note_getter_unavailable) 149399130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian << MemberName << BaseExpr->getSourceRange(); 14947f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14957f81652f97a69ae8b514893a69c0245253687e55Chris Lattner} 14967f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14977f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14987f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 149960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 1500eb483eb3ee80300f15d6d13573d82493c2194461Chris LattnerActOnClassPropertyRefExpr(IdentifierInfo &receiverName, 1501eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IdentifierInfo &propertyName, 1502eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation receiverNameLoc, 1503eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation propertyNameLoc) { 15041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1505f06cdae9c68dfc4191fbf6b9e5ea0fd748488d88Douglas Gregor IdentifierInfo *receiverNamePtr = &receiverName; 1506c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor ObjCInterfaceDecl *IFace = getObjCInterfaceDecl(receiverNamePtr, 1507c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor receiverNameLoc); 1508926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1509926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool IsSuper = false; 1510eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (IFace == 0) { 1511eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // If the "receiver" is 'super' in a method, handle it as an expression-like 1512eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // property reference. 151326743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (receiverNamePtr->isStr("super")) { 1514926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor IsSuper = true; 1515926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1516b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman if (ObjCMethodDecl *CurMethod = tryCaptureObjCSelf(receiverNameLoc)) { 1517eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (CurMethod->isInstanceMethod()) { 1518eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner QualType T = 1519eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner Context.getObjCInterfaceType(CurMethod->getClassInterface()); 1520eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner T = Context.getObjCObjectPointerType(T); 1521eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1522eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return HandleExprPropertyRefExpr(T->getAsObjCInterfacePointerType(), 15236326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian /*BaseExpr*/0, 15246326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian SourceLocation()/*OpLoc*/, 15256326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian &propertyName, 15268ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian propertyNameLoc, 15278ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian receiverNameLoc, T, true); 1528eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 1529eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1530eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Otherwise, if this is a class method, try dispatching to our 1531eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // superclass. 1532eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IFace = CurMethod->getClassInterface()->getSuperClass(); 1533eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 153426743b20e4a8c2a986e6453f0c38beba0afef633John McCall } 1535eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1536eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (IFace == 0) { 1537eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner Diag(receiverNameLoc, diag::err_expected_ident_or_lparen); 1538eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return ExprError(); 1539eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 15408149a5786def747af783a9e3c22714bb7ab42b9cFariborz Jahanian } 15411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1542eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Search for a declared property first. 154361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff Selector Sel = PP.getSelectorTable().getNullarySelector(&propertyName); 154417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Getter = IFace->lookupClassMethod(Sel); 154561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 154661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, check for 'private' methods. 154761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Getter) 154861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) 154961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) 155087018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 155117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Getter = ImpDecl->getClassMethod(Sel); 155261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 155361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter) { 155461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // FIXME: refactor/share with ActOnMemberReference(). 155561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Check if we can reference this property. 155661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (DiagnoseUseOfDecl(Getter, propertyNameLoc)) 155761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 155861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look for the matching setter, in case it is needed. 15611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Selector SetterSel = 15621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SelectorTable::constructSetterName(PP.getIdentifierTable(), 1563fdc92b7877535e6264fe43cfbdc8f01e9b224f81Steve Naroff PP.getSelectorTable(), &propertyName); 15641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Setter = IFace->lookupClassMethod(SetterSel); 156661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Setter) { 156761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, also check for 'private' 156861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // methods. 156961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) 157061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) 157187018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 157217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Setter = ImpDecl->getClassMethod(SetterSel); 157361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 157461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look through local category implementations associated with the class. 15751cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Setter) 15761cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Setter = IFace->getCategoryClassMethod(SetterSel); 157761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 157861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Setter && DiagnoseUseOfDecl(Setter, propertyNameLoc)) 157961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 158061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 158161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter || Setter) { 1582926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (IsSuper) 1583926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 15843c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 15853c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 1586926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor propertyNameLoc, 1587926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor receiverNameLoc, 1588926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(IFace))); 1589926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 159012f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 15913c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 15923c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 159312f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall propertyNameLoc, 159412f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall receiverNameLoc, IFace)); 159561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 159661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(Diag(propertyNameLoc, diag::err_property_not_found) 159761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff << &propertyName << Context.getObjCInterfaceType(IFace)); 159861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff} 159961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 16002f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainnamespace { 16012f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16022f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainclass ObjCInterfaceOrSuperCCC : public CorrectionCandidateCallback { 16032f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain public: 16042f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC(ObjCMethodDecl *Method) { 16052f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // Determine whether "super" is acceptable in the current context. 16062f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Method && Method->getClassInterface()) 16072f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain WantObjCSuper = Method->getClassInterface()->getSuperClass(); 16082f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 16092f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16102f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain virtual bool ValidateCandidate(const TypoCorrection &candidate) { 16112f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return candidate.getCorrectionDeclAs<ObjCInterfaceDecl>() || 16122f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain candidate.isKeyword("super"); 16132f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 16142f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain}; 16152f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16162f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain} 16172f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 161847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas GregorSema::ObjCMessageKind Sema::getObjCMessageKind(Scope *S, 16191569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor IdentifierInfo *Name, 162047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor SourceLocation NameLoc, 162147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor bool IsSuper, 16221569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor bool HasTrailingDot, 1623b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &ReceiverType) { 1624b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = ParsedType(); 16251569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 162647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // If the identifier is "super" and there is no trailing dot, we're 162795f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // messaging super. If the identifier is "super" and there is a 162895f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // trailing dot, it's an instance message. 162995f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor if (IsSuper && S->isInObjcMethodScope()) 163095f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor return HasTrailingDot? ObjCInstanceMessage : ObjCSuperMessage; 163147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 163247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupResult Result(*this, Name, NameLoc, LookupOrdinaryName); 163347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupName(Result, S); 163447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 163547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor switch (Result.getResultKind()) { 163647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFound: 1637ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Normal name lookup didn't find anything. If we're in an 1638ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Objective-C method, look for ivars. If we find one, we're done! 163995f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // FIXME: This is a hack. Ivar lookup should be part of normal 164095f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // lookup. 1641ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (ObjCMethodDecl *Method = getCurMethodDecl()) { 1642ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis if (!Method->getClassInterface()) { 1643ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis // Fall back: let the parser try to parse it as an instance message. 1644ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis return ObjCInstanceMessage; 1645ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis } 1646ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis 1647ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ObjCInterfaceDecl *ClassDeclared; 1648ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (Method->getClassInterface()->lookupInstanceVariable(Name, 1649ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ClassDeclared)) 1650ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor return ObjCInstanceMessage; 1651ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor } 165295f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor 165347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Break out; we'll perform typo correction below. 165447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor break; 165547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 165647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFoundInCurrentInstantiation: 165747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundOverloaded: 165847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundUnresolvedValue: 165947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Ambiguous: 166047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Result.suppressDiagnostics(); 166147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 166247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 166347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Found: { 16648348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // If the identifier is a class or not, and there is a trailing dot, 16658348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // it's an instance message. 16668348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian if (HasTrailingDot) 16678348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian return ObjCInstanceMessage; 166847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // We found something. If it's a type, then we have a class 166947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // message. Otherwise, it's an instance message. 167047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor NamedDecl *ND = Result.getFoundDecl(); 16711569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor QualType T; 16721569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(ND)) 16731569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getObjCInterfaceType(Class); 16741569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor else if (TypeDecl *Type = dyn_cast<TypeDecl>(ND)) 16751569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getTypeDeclType(Type); 16761569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor else 16771569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCInstanceMessage; 16781569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 16791569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // We have a class message, and T is the type we're 16801569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // messaging. Build source-location information for it. 16811569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 1682b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = CreateParsedType(T, TSInfo); 16831569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCClassMessage; 168447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 168547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 168647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 16872f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC Validator(getCurMethodDecl()); 1688d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor if (TypoCorrection Corrected = CorrectTypo(Result.getLookupNameInfo(), 1689d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor Result.getLookupKind(), S, NULL, 169016e46dd0c284296cea819dfbf67942ecef02894dKaelyn Uhrain Validator)) { 16912f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Corrected.isKeyword()) { 16922f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we've found the keyword "super" (the only keyword that would be 16932f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // returned by CorrectTypo), this is a send to super. 169447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Diag(NameLoc, diag::err_unknown_receiver_suggest) 1695d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor << Name << Corrected.getCorrection() 1696aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor << FixItHint::CreateReplacement(SourceRange(NameLoc), "super"); 1697aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor return ObjCSuperMessage; 16982f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } else if (ObjCInterfaceDecl *Class = 16992f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Corrected.getCorrectionDeclAs<ObjCInterfaceDecl>()) { 17002f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we found a declaration, correct when it refers to an Objective-C 17012f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // class. 17022f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Diag(NameLoc, diag::err_unknown_receiver_suggest) 17032f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << Name << Corrected.getCorrection() 17042f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << FixItHint::CreateReplacement(SourceRange(NameLoc), 17052f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Class->getNameAsString()); 17062f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Diag(Class->getLocation(), diag::note_previous_decl) 17072f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << Corrected.getCorrection(); 17082f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 17092f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain QualType T = Context.getObjCInterfaceType(Class); 17102f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 17112f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ReceiverType = CreateParsedType(T, TSInfo); 17122f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return ObjCClassMessage; 171347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 171447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 171547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 171647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Fall back: let the parser try to parse it as an instance message. 171747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 171847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor} 171961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 172060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnSuperMessage(Scope *S, 17210fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 17220fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 17230fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1724951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 17250fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 17260fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor MultiExprArg Args) { 17272725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Determine whether we are inside a method or not. 1728b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman ObjCMethodDecl *Method = tryCaptureObjCSelf(SuperLoc); 1729f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Method) { 1730f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::err_invalid_receiver_to_message_super); 1731f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return ExprError(); 1732f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor } 17332725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1734f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Class = Method->getClassInterface(); 1735f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Class) { 1736f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::error_no_super_class_message) 1737f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor << Method->getDeclName(); 17382725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 173915faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner } 17402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1741f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Super = Class->getSuperClass(); 17422725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Super) { 1743f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // The current class does not have a superclass. 1744e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek Diag(SuperLoc, diag::error_root_class_cannot_use_super) 1745e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek << Class->getIdentifier(); 17462725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 17472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 17482725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1749f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // We are in a method whose class has a superclass, so 'super' 1750f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // is acting as a keyword. 1751f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (Method->isInstanceMethod()) { 17529a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber if (Sel.getMethodFamily() == OMF_dealloc) 17539a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber ObjCShouldCallSuperDealloc = false; 175480cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber if (Sel.getMethodFamily() == OMF_finalize) 175580cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber ObjCShouldCallSuperFinalize = false; 17569a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber 1757f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in an instance method, this is an instance 1758f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // message to the superclass instance. 1759f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor QualType SuperTy = Context.getObjCInterfaceType(Super); 1760f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor SuperTy = Context.getObjCObjectPointerType(SuperTy); 17619ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(0, SuperTy, SuperLoc, 1762f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Sel, /*Method=*/0, 1763951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 17642725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 1765f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor 1766f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in a class method, this is a class message to 1767f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // the superclass. 1768f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return BuildClassMessage(/*ReceiverTypeInfo=*/0, 1769f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Context.getObjCInterfaceType(Super), 1770f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SuperLoc, Sel, /*Method=*/0, 1771951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 17722725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 17732725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1774746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1775746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildClassMessageImplicit(QualType ReceiverType, 1776746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isSuperReceiver, 1777746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 1778746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 1779746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 1780746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 1781746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis TypeSourceInfo *receiverTypeInfo = 0; 1782746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis if (!ReceiverType.isNull()) 1783746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis receiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType); 1784746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1785746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildClassMessage(receiverTypeInfo, ReceiverType, 1786746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/isSuperReceiver ? Loc : SourceLocation(), 1787746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 1788746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 1789746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1790746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 1791746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1792ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void applyCocoaAPICheck(Sema &S, const ObjCMessageExpr *Msg, 1793ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned DiagID, 1794ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool (*refactor)(const ObjCMessageExpr *, 1795ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const NSAPI &, edit::Commit &)) { 1796ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation MsgLoc = Msg->getExprLoc(); 1797ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.Diags.getDiagnosticLevel(DiagID, MsgLoc) == DiagnosticsEngine::Ignored) 1798ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 1799ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1800ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceManager &SM = S.SourceMgr; 1801ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::Commit ECommit(SM, S.LangOpts); 1802ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (refactor(Msg,*S.NSAPIObj, ECommit)) { 1803ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DiagnosticBuilder Builder = S.Diag(MsgLoc, DiagID) 1804ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Msg->getSelector() << Msg->getSourceRange(); 1805ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // FIXME: Don't emit diagnostic at all if fixits are non-commitable. 1806ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ECommit.isCommitable()) 1807ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 1808ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (edit::Commit::edit_iterator 1809ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek I = ECommit.edit_begin(), E = ECommit.edit_end(); I != E; ++I) { 1810ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const edit::Commit::Edit &Edit = *I; 1811ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Edit.Kind) { 1812ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Insert: 1813ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateInsertion(Edit.OrigLoc, 1814ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.Text, 1815ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 1816ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1817ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_InsertFromRange: 1818ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint( 1819ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek FixItHint::CreateInsertionFromRange(Edit.OrigLoc, 1820ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.getInsertFromRange(SM), 1821ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 1822ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1823ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Remove: 1824ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateRemoval(Edit.getFileRange(SM))); 1825ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1826ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1827ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1828ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1829ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1830ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1831ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void checkCocoaAPI(Sema &S, const ObjCMessageExpr *Msg) { 1832ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek applyCocoaAPICheck(S, Msg, diag::warn_objc_redundant_literal_use, 1833ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::rewriteObjCRedundantCallWithLiteral); 1834ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1835ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 18362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C class message expression. 18372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18382725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal class messages and 18392725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// class messages to the superclass. 18402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18412725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverTypeInfo Type source information that describes the 18422725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receiver of this message. This may be NULL, in which case we are 18432725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass and \p SuperLoc must be a valid source 18442725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// location. 18452725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 18462725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The type of the object receiving the 18472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When \p ReceiverTypeInfo is non-NULL, this is the same 18482725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// type as that refers to. For a superclass send, this is the type of 18492725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// the superclass. 18502725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 18522725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass message. 18532725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 18552725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 1856f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this class message is invoking, if 1857f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 1858f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 18592725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 18602725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18612725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param RBrac The location of the closing square bracket ']'. 18622725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18632725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Args The message arguments. 186460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildClassMessage(TypeSourceInfo *ReceiverTypeInfo, 18650fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor QualType ReceiverType, 18660fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 18670fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 18680fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor ObjCMethodDecl *Method, 18690fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1870951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 18710fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 1872746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 1873746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 18740fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc 18759497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange().getBegin(); 18760fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 18770fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 18780fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 18790fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 18800fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 18810fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 188292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (ReceiverType->isDependentType()) { 188392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver type is dependent, we can't type-check anything 188492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 188592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 188692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 188792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 1888f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return Owned(ObjCMessageExpr::Create(Context, ReceiverType, 1889f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, LBracLoc, ReceiverTypeInfo, 1890951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Sel, SelectorLocs, /*Method=*/0, 1891746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs),RBracLoc, 1892746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit)); 189392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 189415faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner 18952725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the class to which we are sending this message. 18962725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ObjCInterfaceDecl *Class = 0; 1897c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *ClassType = ReceiverType->getAs<ObjCObjectType>(); 1898c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ClassType || !(Class = ClassType->getInterface())) { 18992725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Diag(Loc, diag::err_invalid_receiver_class_message) 19002725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor << ReceiverType; 19012725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19027c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff } 19032725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor assert(Class && "We don't know which class we're messaging?"); 190443bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian // objc++ diagnoses during typename annotation. 19054e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) 190643bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian (void)DiagnoseUseOfDecl(Class, Loc); 19072725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the method we are messaging. 1908f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 1909b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange TypeRange 1910b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor = SuperLoc.isValid()? SourceRange(SuperLoc) 1911b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange(); 1912b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(Loc, Context.getObjCInterfaceType(Class), 19134e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().ObjCAutoRefCount 1914b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor ? PDiag(diag::err_arc_receiver_forward_class) 1915b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : PDiag(diag::warn_receiver_forward_class)) 1916b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << TypeRange)) { 1917f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // A forward class used in messaging is treated as a 'Class' 1918f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 1919f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor SourceRange(LBracLoc, RBracLoc)); 19204e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Method && !getLangOpts().ObjCAutoRefCount) 1921f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Method->getLocation(), diag::note_method_sent_forward_class) 1922f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Method->getDeclName(); 1923f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 1924f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 1925f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = Class->lookupClassMethod(Sel); 19261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1927f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have an implementation in scope, check "private" methods. 1928f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 1929f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupPrivateClassMethod(Sel, Class); 19307c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff 1931f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (Method && DiagnoseUseOfDecl(Method, Loc)) 1932f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 1933f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 19341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19352725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the argument types and determine the result type. 19362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 1937f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 1938f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 19392725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 19402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 1941926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (CheckMessageArgumentTypes(ReceiverType, Args, NumArgs, Sel, Method, true, 1942926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor SuperLoc.isValid(), LBracLoc, RBracLoc, 1943926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType, VK)) 19442725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19454df728e368fa1f65ffc57572fed613dcca5b4fe8Ted Kremenek 1946483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor if (Method && !Method->getResultType()->isVoidType() && 1947483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor RequireCompleteType(LBracLoc, Method->getResultType(), 1948483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 1949483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 1950483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor 19512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr. 1952ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMessageExpr *Result; 19532725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 1954f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 19552d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/false, 1956951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, 19578d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 1958746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 1959ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 1960f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 1961951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverTypeInfo, Sel, SelectorLocs, 19628d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 1963746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 1964ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 1965ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 1966ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 19672d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 196885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 196985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 19702725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnClassMessage - used for both unary and keyword messages. 197185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// ArgExprs is optional - if it is present, the number of expressions 197285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// is obtained from Sel.getNumArgs(). 197360d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnClassMessage(Scope *S, 197477328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor ParsedType Receiver, 197577328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor Selector Sel, 197677328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation LBracLoc, 1977951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 197877328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation RBracLoc, 197977328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor MultiExprArg Args) { 19802725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor TypeSourceInfo *ReceiverTypeInfo; 19812725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReceiverType = GetTypeFromParser(Receiver, &ReceiverTypeInfo); 19822725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (ReceiverType.isNull()) 19832725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19862725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!ReceiverTypeInfo) 19872725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType, LBracLoc); 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19892725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return BuildClassMessage(ReceiverTypeInfo, ReceiverType, 1990f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor /*SuperLoc=*/SourceLocation(), Sel, /*Method=*/0, 1991951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 19922725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 199387d3ef08d892df8264bd51adb6ddd4a22422cd29Steve Naroff 1994746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildInstanceMessageImplicit(Expr *Receiver, 1995746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis QualType ReceiverType, 1996746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 1997746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 1998746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 1999746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 2000746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildInstanceMessage(Receiver, ReceiverType, 2001746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/!Receiver ? Loc : SourceLocation(), 2002746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 2003746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 2004746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 2005746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 20062725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C instance message expression. 20072725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20082725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal instance messages and 20092725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// instance messages to the superclass instance. 20102725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20112725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Receiver The expression that computes the object that will 20122725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receive this message. This may be empty, in which case we are 20132725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass instance and \p SuperLoc must be a valid 20142725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// source location. 20152725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20162725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The (static) type of the object receiving the 20172725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When a \p Receiver expression is provided, this is the 20182725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// same type as that expression. For a superclass instance send, this 20192725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// is a pointer to the type of the superclass. 20202725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20212725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 20222725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass instance message. 20232725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20242725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 20252725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2026f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this instance message is invoking, if 2027f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 2028f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 20292725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 20302725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20312725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param RBrac The location of the closing square bracket ']'. 20322725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20332725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Args The message arguments. 203460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildInstanceMessage(Expr *Receiver, 2035f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis QualType ReceiverType, 2036f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation SuperLoc, 2037f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Selector Sel, 2038f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis ObjCMethodDecl *Method, 2039f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation LBracLoc, 2040951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 2041f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation RBracLoc, 2042746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 2043746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 20440fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor // The location of the receiver. 20450fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc : Receiver->getLocStart(); 20460fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 20470fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 20480fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 20490fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 20500fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 20510fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 20520fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 20532725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If we have a receiver expression, perform appropriate promotions 20542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // and determine receiver type. 20552725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (Receiver) { 20565acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (Receiver->hasPlaceholderType()) { 2057f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor ExprResult Result; 2058f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Receiver->getType() == Context.UnknownAnyTy) 2059f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = forceUnknownAnyToType(Receiver, Context.getObjCIdType()); 2060f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor else 2061f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = CheckPlaceholderExpr(Receiver); 2062f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Result.isInvalid()) return ExprError(); 2063f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Receiver = Result.take(); 20645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 20655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 206692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Receiver->isTypeDependent()) { 206792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver is type-dependent, we can't type-check anything 206892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 206992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 207092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 207192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 207292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor return Owned(ObjCMessageExpr::Create(Context, Context.DependentTy, 2073f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, LBracLoc, Receiver, Sel, 2074951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SelectorLocs, /*Method=*/0, 20758d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis makeArrayRef(Args, NumArgs), 2076746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit)); 207792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 207892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 20792725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If necessary, apply function/array conversion to the receiver. 20802725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // C99 6.7.5.3p[7,8]. 2081429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultFunctionArrayLvalueConversion(Receiver); 2082429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 2083429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 2084429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = Result.take(); 20852725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverType = Receiver->getType(); 20862725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 208704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2088f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2089f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to id. 2090ba551983016ee3eac5421255d2ebe6723e61befbFariborz Jahanian bool receiverIsId = ReceiverType->isObjCIdType(); 20916b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian if (receiverIsId || ReceiverType->isBlockPointerType() || 2092f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor (Receiver && Context.isObjCNSObjectType(Receiver->getType()))) { 2093f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 20946b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 20956b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2096f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 20972725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 20986b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 20996b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2100f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (ReceiverType->isObjCClassType() || 2101f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType->isObjCQualifiedClassType()) { 2102f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to Class. 2103759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // We allow sending a message to a qualified Class ("Class<foo>"), which 2104759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // is ok as long as one of the protocols implements the selector (if not, warn). 2105759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCObjectPointerType *QClassTy 2106759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian = ReceiverType->getAsObjCQualifiedClassType()) { 2107759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // Search protocols for class methods. 2108759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, false); 2109759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2110759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, true); 2111759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // warn if instance method found for a Class message. 2112759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) { 2113759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Diag(Loc, diag::warn_instance_method_on_class_found) 2114759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Method->getSelector() << Sel; 21153306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(Method->getLocation(), diag::note_method_declared_at) 21163306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << Method->getDeclName(); 2117759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 21186b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff } 2119759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } else { 2120759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) { 2121759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) { 2122759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // First check the public methods in the class interface. 2123759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = ClassDecl->lookupClassMethod(Sel); 2124759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian 2125759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) 2126759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupPrivateClassMethod(Sel, ClassDecl); 2127759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2128759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc)) 2129759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian return ExprError(); 2130759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2131759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2132759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If not messaging 'self', look for any factory method named 'Sel'. 2133c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Receiver || !isSelfExpr(Receiver)) { 2134759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 2135759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2136759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2137759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2138759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If no class (factory) method was found, check if an _instance_ 2139759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // method of the same name exists in the root class only. 2140759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupInstanceMethodInGlobalPool(Sel, 21416b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2142759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2143759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) 2144759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCInterfaceDecl *ID = 2145759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext())) { 2146759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ID->getSuperClass()) 2147759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Diag(Loc, diag::warn_root_inst_method_not_found) 2148759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Sel << SourceRange(LBracLoc, RBracLoc); 2149759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2150759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 215104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 215204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 215304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 215404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } else { 2155f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ObjCInterfaceDecl* ClassDecl = 0; 2156f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 2157f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a qualified ID ("id<foo>"), which is ok as 2158f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // long as one of the protocols implements the selector (if not, warn). 2159f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (const ObjCObjectPointerType *QIdTy 2160f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCQualifiedIdType()) { 2161f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocols for instance methods. 216227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, true); 216327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 216427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, false); 2165f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (const ObjCObjectPointerType *OCIType 2166f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCInterfacePointerType()) { 2167f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a pointer to an interface (an object). 2168f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ClassDecl = OCIType->getInterfaceDecl(); 2169f85e193739c953358c865005855253af4f68a497John McCall 2170b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // Try to complete the type. Under ARC, this is a hard error from which 2171b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // we don't try to recover. 2172b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor const ObjCInterfaceDecl *forwardClass = 0; 2173b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(Loc, OCIType->getPointeeType(), 21744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().ObjCAutoRefCount 2175b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor ? PDiag(diag::err_arc_receiver_forward_instance) 2176b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << (Receiver ? Receiver->getSourceRange() 2177b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : SourceRange(SuperLoc)) 21784cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian : PDiag(diag::warn_receiver_forward_instance) 21794cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian << (Receiver ? Receiver->getSourceRange() 21804cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian : SourceRange(SuperLoc)))) { 21814e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 2182b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 2183b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 2184b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor forwardClass = OCIType->getInterfaceDecl(); 21854cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian Diag(Receiver ? Receiver->getLocStart() 21864cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian : SuperLoc, diag::note_receiver_is_id); 21872e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = 0; 21882e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor } else { 21892e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = ClassDecl->lookupInstanceMethod(Sel); 2190f85e193739c953358c865005855253af4f68a497John McCall } 2191f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 219227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 2193f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocol qualifiers. 219427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, OCIType, true); 219527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 2196f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2197f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have implementations in scope, check "private" methods. 2198f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupPrivateInstanceMethod(Sel, ClassDecl); 2199f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 22004e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && getLangOpts().ObjCAutoRefCount) { 2201f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_arc_may_not_respond) 2202f85e193739c953358c865005855253af4f68a497John McCall << OCIType->getPointeeType() << Sel; 2203f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 2204f85e193739c953358c865005855253af4f68a497John McCall } 2205f85e193739c953358c865005855253af4f68a497John McCall 2206c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Method && (!Receiver || !isSelfExpr(Receiver))) { 2207f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we still haven't found a method, look in the global pool. This 2208f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // behavior isn't very desirable, however we need it for GCC 2209f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // compatibility. FIXME: should we deviate?? 2210f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (OCIType->qual_empty()) { 2211f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 22128e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceRange(LBracLoc, RBracLoc)); 22138e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && !forwardClass) 2214f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Loc, diag::warn_maynot_respond) 2215f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << OCIType->getInterfaceDecl()->getIdentifier() << Sel; 2216f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2217f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2218f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 22198e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc, forwardClass)) 2220f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 22214e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie } else if (!getLangOpts().ObjCAutoRefCount && 2222f85e193739c953358c865005855253af4f68a497John McCall !Context.getObjCIdType().isNull() && 2223f60946222721d9ba3c059563935c17b84703187aDouglas Gregor (ReceiverType->isPointerType() || 2224f60946222721d9ba3c059563935c17b84703187aDouglas Gregor ReceiverType->isIntegerType())) { 2225f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Implicitly convert integers and pointers to 'id' but emit a warning. 2226f85e193739c953358c865005855253af4f68a497John McCall // But not in ARC. 2227f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Loc, diag::warn_bad_receiver_type) 2228f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << ReceiverType 2229f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Receiver->getSourceRange(); 2230f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (ReceiverType->isPointerType()) 2231429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 22321d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK_CPointerToObjCPointerCast).take(); 2233404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall else { 2234404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall // TODO: specialized warning on null receivers? 2235404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall bool IsNull = Receiver->isNullPointerConstant(Context, 2236404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall Expr::NPC_ValueDependentIsNull); 2237429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 2238429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley IsNull ? CK_NullToPointer : CK_IntegralToPointer).take(); 2239404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall } 2240f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType = Receiver->getType(); 22410bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall } else { 2242429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult ReceiverRes; 22434e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 22440bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall ReceiverRes = PerformContextuallyConvertToObjCPointer(Receiver); 2245429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ReceiverRes.isUsable()) { 2246429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ReceiverRes.take(); 2247429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return BuildInstanceMessage(Receiver, 2248429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ReceiverType, 2249429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley SuperLoc, 2250429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Sel, 2251429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Method, 2252429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley LBracLoc, 2253951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SelectorLocs, 2254429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley RBracLoc, 2255429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley move(ArgsIn)); 2256429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } else { 2257429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley // Reject other random receiver types (e.g. structs). 2258429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Diag(Loc, diag::err_bad_receiver_type) 2259429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley << ReceiverType << Receiver->getSourceRange(); 2260429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 22613ba606199be8056ae83596260bd6fd5872942905Fariborz Jahanian } 2262f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 226304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 2264fe1a553256b46fad3c0a9e9967481bcf571339ecChris Lattner } 22651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22662725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the message arguments. 22672725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 22682725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 22692725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 2270f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 22712600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian bool ClassMessage = (ReceiverType->isObjCClassType() || 22722600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian ReceiverType->isObjCQualifiedClassType()); 2273926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (CheckMessageArgumentTypes(ReceiverType, Args, NumArgs, Sel, Method, 2274926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ClassMessage, SuperLoc.isValid(), 2275f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall LBracLoc, RBracLoc, ReturnType, VK)) 22762725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 2277da59e09f1fd53350fcd949adbadd8148117f21b2Fariborz Jahanian 2278483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor if (Method && !Method->getResultType()->isVoidType() && 2279483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor RequireCompleteType(LBracLoc, Method->getResultType(), 2280483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 2281483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 228204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2283951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SourceLocation SelLoc = SelectorLocs.front(); 2284951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis 2285f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from sending messages to 2286f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount explicitly. 22874e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 2288f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodFamily family = 2289f85e193739c953358c865005855253af4f68a497John McCall (Method ? Method->getMethodFamily() : Sel.getMethodFamily()); 2290f85e193739c953358c865005855253af4f68a497John McCall switch (family) { 2291f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 2292f85e193739c953358c865005855253af4f68a497John McCall if (Method) 2293f85e193739c953358c865005855253af4f68a497John McCall checkInitMethod(Method, ReceiverType); 2294f85e193739c953358c865005855253af4f68a497John McCall 2295f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 2296f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 2297f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 229880cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 2299f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 2300f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 2301f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 2302f85e193739c953358c865005855253af4f68a497John McCall break; 2303f85e193739c953358c865005855253af4f68a497John McCall 2304f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 2305f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 2306f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 2307f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 2308f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 2309f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_arc_illegal_explicit_message) 2310951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis << Sel << SelLoc; 2311f85e193739c953358c865005855253af4f68a497John McCall break; 23129670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian 23139670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 23149670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (Method && NumArgs >= 1) { 23159670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (ObjCSelectorExpr *SelExp = dyn_cast<ObjCSelectorExpr>(Args[0])) { 23169670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Selector ArgSel = SelExp->getSelector(); 23179670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodDecl *SelMethod = 23189670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupInstanceMethodInGlobalPool(ArgSel, 23199670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 23209670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod) 23219670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelMethod = 23229670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupFactoryMethodInGlobalPool(ArgSel, 23239670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 23249670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod) { 23259670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodFamily SelFamily = SelMethod->getMethodFamily(); 23269670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian switch (SelFamily) { 23279670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_alloc: 23289670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_copy: 23299670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_mutableCopy: 23309670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_new: 23319670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_self: 23329670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_init: 23339670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // Issue error, unless ns_returns_not_retained. 23349670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod->hasAttr<NSReturnsNotRetainedAttr>()) { 23359670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2336951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 23379670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 23383306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 23393306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 23409670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23419670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 23429670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian default: 23439670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // +0 call. OK. unless ns_returns_retained. 23449670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod->hasAttr<NSReturnsRetainedAttr>()) { 23459670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2346951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 23479670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 23483306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 23493306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 23509670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23519670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 23529670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23539670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23549670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } else { 23559670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // error (may leak). 2356951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, diag::warn_arc_perform_selector_leaks); 23579670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Diag(Args[0]->getExprLoc(), diag::note_used_here); 23589670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23599670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23609670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 2361f85e193739c953358c865005855253af4f68a497John McCall } 2362f85e193739c953358c865005855253af4f68a497John McCall } 2363f85e193739c953358c865005855253af4f68a497John McCall 23642725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr instance. 2365f85e193739c953358c865005855253af4f68a497John McCall ObjCMessageExpr *Result; 23662725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 2367f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 23682d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/true, 2369951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, Method, 2370746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2371746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2372ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 2373f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 2374951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Receiver, Sel, SelectorLocs, Method, 2375746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2376746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2377ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2378ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2379ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2380f85e193739c953358c865005855253af4f68a497John McCall 23814e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 2382878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian if (Receiver && 2383878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian (Receiver->IgnoreParenImpCasts()->getType().getObjCLifetime() 2384878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian == Qualifiers::OCL_Weak)) 2385878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian Diag(Receiver->getLocStart(), diag::warn_receiver_is_weak); 2386878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian 2387f85e193739c953358c865005855253af4f68a497John McCall // In ARC, annotate delegate init calls. 2388f85e193739c953358c865005855253af4f68a497John McCall if (Result->getMethodFamily() == OMF_init && 2389c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor (SuperLoc.isValid() || isSelfExpr(Receiver))) { 2390f85e193739c953358c865005855253af4f68a497John McCall // Only consider init calls *directly* in init implementations, 2391f85e193739c953358c865005855253af4f68a497John McCall // not within blocks. 2392f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(CurContext); 2393f85e193739c953358c865005855253af4f68a497John McCall if (method && method->getMethodFamily() == OMF_init) { 2394f85e193739c953358c865005855253af4f68a497John McCall // The implicit assignment to self means we also don't want to 2395f85e193739c953358c865005855253af4f68a497John McCall // consume the result. 2396f85e193739c953358c865005855253af4f68a497John McCall Result->setDelegateInitCall(true); 2397f85e193739c953358c865005855253af4f68a497John McCall return Owned(Result); 2398f85e193739c953358c865005855253af4f68a497John McCall } 2399f85e193739c953358c865005855253af4f68a497John McCall } 2400f85e193739c953358c865005855253af4f68a497John McCall 2401f85e193739c953358c865005855253af4f68a497John McCall // In ARC, check for message sends which are likely to introduce 2402f85e193739c953358c865005855253af4f68a497John McCall // retain cycles. 2403f85e193739c953358c865005855253af4f68a497John McCall checkRetainCycles(Result); 2404f85e193739c953358c865005855253af4f68a497John McCall } 2405f85e193739c953358c865005855253af4f68a497John McCall 24062d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 24072725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 24082725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 24092725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnInstanceMessage - used for both unary and keyword messages. 24102725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ArgExprs is optional - if it is present, the number of expressions 24112725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// is obtained from Sel.getNumArgs(). 241260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnInstanceMessage(Scope *S, 241360d7b3a319d84d688752be3870615ac0f111fb16John McCall Expr *Receiver, 241460d7b3a319d84d688752be3870615ac0f111fb16John McCall Selector Sel, 241560d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation LBracLoc, 2416951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 241760d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation RBracLoc, 241860d7b3a319d84d688752be3870615ac0f111fb16John McCall MultiExprArg Args) { 24192725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Receiver) 24202725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 242104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 24229ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(Receiver, Receiver->getType(), 2423f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor /*SuperLoc=*/SourceLocation(), Sel, /*Method=*/0, 2424951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 242585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 2426eca7be6b7ebd93682eeaab2c71d59f2995dacdccChris Lattner 2427f85e193739c953358c865005855253af4f68a497John McCallenum ARCConversionTypeClass { 24282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// int, void, struct A 2429f85e193739c953358c865005855253af4f68a497John McCall ACTC_none, 24302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id, void (^)() 2432f85e193739c953358c865005855253af4f68a497John McCall ACTC_retainable, 24332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id*, id***, void (^*)(), 24352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_indirectRetainable, 24362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// void* might be a normal C type, or it might a CF type. 24382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_voidPtr, 24392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// struct A* 24412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_coreFoundation 2442f85e193739c953358c865005855253af4f68a497John McCall}; 24432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyRetainable(ARCConversionTypeClass ACTC) { 24442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return (ACTC == ACTC_retainable || 24452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation || 24462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr); 24472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 24482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyCLike(ARCConversionTypeClass ACTC) { 24492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC == ACTC_none || 24502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr || 24512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation; 24522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 24532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2454f85e193739c953358c865005855253af4f68a497John McCallstatic ARCConversionTypeClass classifyTypeForARCConversion(QualType type) { 24552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall bool isIndirect = false; 2456f85e193739c953358c865005855253af4f68a497John McCall 2457f85e193739c953358c865005855253af4f68a497John McCall // Ignore an outermost reference type. 24582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = type->getAs<ReferenceType>()) { 2459f85e193739c953358c865005855253af4f68a497John McCall type = ref->getPointeeType(); 24602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 24612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2462f85e193739c953358c865005855253af4f68a497John McCall 2463f85e193739c953358c865005855253af4f68a497John McCall // Drill through pointers and arrays recursively. 2464f85e193739c953358c865005855253af4f68a497John McCall while (true) { 2465f85e193739c953358c865005855253af4f68a497John McCall if (const PointerType *ptr = type->getAs<PointerType>()) { 2466f85e193739c953358c865005855253af4f68a497John McCall type = ptr->getPointeeType(); 24672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // The first level of pointer may be the innermost pointer on a CF type. 24692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isIndirect) { 24702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isVoidType()) return ACTC_voidPtr; 24712cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isRecordType()) return ACTC_coreFoundation; 24722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2473f85e193739c953358c865005855253af4f68a497John McCall } else if (const ArrayType *array = type->getAsArrayTypeUnsafe()) { 2474f85e193739c953358c865005855253af4f68a497John McCall type = QualType(array->getElementType()->getBaseElementTypeUnsafe(), 0); 2475f85e193739c953358c865005855253af4f68a497John McCall } else { 2476f85e193739c953358c865005855253af4f68a497John McCall break; 2477f85e193739c953358c865005855253af4f68a497John McCall } 24782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 2479f85e193739c953358c865005855253af4f68a497John McCall } 2480f85e193739c953358c865005855253af4f68a497John McCall 24812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isIndirect) { 24822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 24832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_indirectRetainable; 24842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 24852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 24862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 24882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_retainable; 24892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 2491f85e193739c953358c865005855253af4f68a497John McCall} 2492f85e193739c953358c865005855253af4f68a497John McCall 2493f85e193739c953358c865005855253af4f68a497John McCallnamespace { 24942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A result from the cast checker. 24952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall enum ACCResult { 24962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Cannot be casted. 24972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_invalid, 24982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be safely retained or not retained. 25002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_bottom, 25012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +0. 25032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusZero, 25042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +1. 25062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusOne 25072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 25082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult merge(ACCResult left, ACCResult right) { 25092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == right) return left; 25102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_bottom) return right; 25112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (right == ACC_bottom) return left; 25122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A checker which white-lists certain expressions whose conversion 25162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// to or from retainable type would otherwise be forbidden in ARC. 25172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall class ARCCastChecker : public StmtVisitor<ARCCastChecker, ACCResult> { 25182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall typedef StmtVisitor<ARCCastChecker, ACCResult> super; 25192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2520f85e193739c953358c865005855253af4f68a497John McCall ASTContext &Context; 25212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass SourceClass; 25222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass TargetClass; 25232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall static bool isCFType(QualType type) { 25252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Someday this can use ns_bridged. For now, it has to do this. 25262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return type->isCARCBridgableType(); 2527f85e193739c953358c865005855253af4f68a497John McCall } 25282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall public: 25302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCCastChecker(ASTContext &Context, ARCConversionTypeClass source, 25312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass target) 25322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall : Context(Context), SourceClass(source), TargetClass(target) {} 25332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall using super::Visit; 25352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult Visit(Expr *e) { 25362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::Visit(e->IgnoreParens()); 2537f85e193739c953358c865005855253af4f68a497John McCall } 25382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmt(Stmt *s) { 25402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Null pointer constants can be casted however you please. 25442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitExpr(Expr *e) { 25452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNotNull)) 25462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 25472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Objective-C string literals can be safely casted. 25512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCStringLiteral(ObjCStringLiteral *e) { 25522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If we're casting to any retainable type, go ahead. Global 25532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // strings are immune to retains, so this is bottom. 25542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass)) return ACC_bottom; 25552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2557f85e193739c953358c865005855253af4f68a497John McCall } 25582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through certain implicit and explicit casts. 25602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCastExpr(CastExpr *e) { 2561f85e193739c953358c865005855253af4f68a497John McCall switch (e->getCastKind()) { 2562f85e193739c953358c865005855253af4f68a497John McCall case CK_NullToPointer: 25632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 25642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2565f85e193739c953358c865005855253af4f68a497John McCall case CK_NoOp: 2566f85e193739c953358c865005855253af4f68a497John McCall case CK_LValueToRValue: 2567f85e193739c953358c865005855253af4f68a497John McCall case CK_BitCast: 25681d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_CPointerToObjCPointerCast: 25691d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_BlockPointerToObjCPointerCast: 2570f85e193739c953358c865005855253af4f68a497John McCall case CK_AnyPointerToBlockPointerCast: 2571f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 25722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2573f85e193739c953358c865005855253af4f68a497John McCall default: 25742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2575f85e193739c953358c865005855253af4f68a497John McCall } 2576f85e193739c953358c865005855253af4f68a497John McCall } 25772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through unary extension. 25792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitUnaryExtension(UnaryOperator *e) { 2580f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 2581f85e193739c953358c865005855253af4f68a497John McCall } 25822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Ignore the LHS of a comma operator. 25842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitBinComma(BinaryOperator *e) { 2585f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getRHS()); 2586f85e193739c953358c865005855253af4f68a497John McCall } 25872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Conditional operators are okay if both sides are okay. 25892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitConditionalOperator(ConditionalOperator *e) { 25902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult left = Visit(e->getTrueExpr()); 25912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_invalid) return ACC_invalid; 25922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return merge(left, Visit(e->getFalseExpr())); 2593f85e193739c953358c865005855253af4f68a497John McCall } 25942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25954b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Look through pseudo-objects. 25964b9c2d235fb9449e249d74f48ecfec601650de93John McCall ACCResult VisitPseudoObjectExpr(PseudoObjectExpr *e) { 25974b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If we're getting here, we should always have a result. 25984b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Visit(e->getResultExpr()); 25994b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 26004b9c2d235fb9449e249d74f48ecfec601650de93John McCall 26012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Statement expressions are okay if their result expression is okay. 26022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmtExpr(StmtExpr *e) { 2603f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubStmt()->body_back()); 2604f85e193739c953358c865005855253af4f68a497John McCall } 26052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some declaration references are okay. 26072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitDeclRefExpr(DeclRefExpr *e) { 26082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // References to global constants from system headers are okay. 26092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // These are things like 'kCFStringTransformToLatin'. They are 26102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // can also be assumed to be immune to retains. 26112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall VarDecl *var = dyn_cast<VarDecl>(e->getDecl()); 26122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass) && 26132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isAnyRetainable(SourceClass) && 26142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var && 26152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getStorageClass() == SC_Extern && 26162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getType().isConstQualified() && 26172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall Context.getSourceManager().isInSystemHeader(var->getLocation())) { 26182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 26202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Nothing else. 26222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2623f85e193739c953358c865005855253af4f68a497John McCall } 2624f85e193739c953358c865005855253af4f68a497John McCall 26252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some calls are okay. 26262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCallExpr(CallExpr *e) { 26272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (FunctionDecl *fn = e->getDirectCallee()) 26282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (ACCResult result = checkCallToFunction(fn)) 26292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return result; 26302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::VisitCallExpr(e); 2632c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 26332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToFunction(FunctionDecl *fn) { 26352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Require a CF*Ref return type. 26362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isCFType(fn->getResultType())) 26372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass)) 26402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'not retained' attribute. 26432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsNotRetainedAttr>()) 26442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 26452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'retained' attribute, except that for 26472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // now we're not going to permit implicit handling of +1 results, 26482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // because it's a bit frightening. 26492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsRetainedAttr>()) 26502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; // ACC_plusOne if we start accepting this 26512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Recognize this specific builtin function, which is used by CFSTR. 26532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall unsigned builtinID = fn->getBuiltinID(); 26542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (builtinID == Builtin::BI__builtin___CFStringMakeConstantString) 26552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, don't do anything implicit with an unaudited function. 26582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!fn->hasAttr<CFAuditedTransferAttr>()) 26592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, it's +0 unless it follows the create convention. 26622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (ento::coreFoundation::followsCreateRule(fn)) 26632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; // ACC_plusOne if we start accepting this 26642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 26662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 26672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCMessageExpr(ObjCMessageExpr *e) { 26692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(e->getMethodDecl()); 26702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 26712cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *e) { 26732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ObjCMethodDecl *method; 26742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isExplicitProperty()) 26752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getExplicitProperty()->getGetterMethodDecl(); 26762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall else 26772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getImplicitPropertyGetter(); 26782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(method); 26792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 26802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToMethod(ObjCMethodDecl *method) { 26822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!method) return ACC_invalid; 26832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Check for message sends to functions returning CF types. We 26852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // just obey the Cocoa conventions with these, even though the 26862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // return type is CF. 26872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass) || !isCFType(method->getResultType())) 26882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked not-retained, it's +0. 26912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsNotRetainedAttr>()) 26922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 26932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked as returning retained, or its 26952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // selector follows a +1 Cocoa convention, treat it as +1. 26962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsRetainedAttr>()) 26972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 26982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall switch (method->getSelector().getMethodFamily()) { 27002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_alloc: 27012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_copy: 27022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_mutableCopy: 27032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_new: 27042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 27052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall default: 27072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, treat it as +0. 27082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 2709c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 2710af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian } 27112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 27121522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian} 27131522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian 271452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanianstatic bool 271552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz JahanianKnownName(Sema &S, const char *name) { 271652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian LookupResult R(S, &S.Context.Idents.get(name), SourceLocation(), 271752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian Sema::LookupOrdinaryName); 271852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian return S.LookupName(R, S.TUScope, false); 271952b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian} 272052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 2721ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidisstatic void addFixitForObjCARCConversion(Sema &S, 2722ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder &DiagB, 2723ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Sema::CheckedConversionKind CCK, 2724ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceLocation afterLParen, 2725ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis QualType castType, 2726ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castExpr, 2727ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *bridgeKeyword, 2728ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *CFBridgeName) { 2729ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis // We handle C-style and implicit casts here. 2730ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis switch (CCK) { 2731ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_ImplicitConversion: 2732ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_CStyleCast: 2733ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis break; 2734ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_FunctionalCast: 2735ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_OtherCast: 2736ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 2737ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2738ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 2739ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CFBridgeName) { 2740ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr; 2741ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CStyleCastExpr *CCE = dyn_cast<CStyleCastExpr>(castedE)) 2742ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = CCE->getSubExpr(); 2743ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = castedE->IgnoreImpCasts(); 2744ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 2745ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 2746ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2747ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis CFBridgeName)); 2748ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2749ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis std::string namePlusParen = CFBridgeName; 2750ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis namePlusParen += "("; 2751ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2752ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis namePlusParen)); 2753ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 2754ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 2755ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 2756ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2757ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 2758ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2759ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 2760ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CCK == Sema::CCK_CStyleCast) { 2761ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(afterLParen, bridgeKeyword)); 2762ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2763ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis std::string castCode = "("; 2764ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += bridgeKeyword; 2765ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += castType.getAsString(); 2766ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += ")"; 2767ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr->IgnoreImpCasts(); 2768ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 2769ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 2770ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2771ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 2772ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2773ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += "("; 2774ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2775ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 2776ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 2777ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 2778ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 2779ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2780ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2781ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis} 2782ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 27835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallstatic void 27845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCalldiagnoseObjCARCConversion(Sema &S, SourceRange castRange, 27855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType, ARCConversionTypeClass castACTC, 27865acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr, ARCConversionTypeClass exprACTC, 27875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Sema::CheckedConversionKind CCK) { 27885acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation loc = 27895acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall (castRange.isValid() ? castRange.getBegin() : castExpr->getExprLoc()); 27905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 27915acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (S.makeUnavailableInSystemHeader(loc, 27925acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall "converts between Objective-C and C pointers in -fobjc-arc")) 27935acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 27945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 27955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castExprType = castExpr->getType(); 27965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 27975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned srcKind = 0; 27985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall switch (exprACTC) { 27995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_none: 28005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_coreFoundation: 28015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_voidPtr: 28025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isPointerType() ? 1 : 0); 28035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28045acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_retainable: 28055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isBlockPointerType() ? 2 : 3); 28065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_indirectRetainable: 28085acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = 4; 28095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28105acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 28115acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28125acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Check whether this could be fixed with a bridge cast. 28135acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation afterLParen = S.PP.getLocForEndOfToken(castRange.getBegin()); 28145acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation noteLoc = afterLParen.isValid() ? afterLParen : loc; 28155acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from an ARC type to a CF type. 28175acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (castACTC == ACTC_retainable && isAnyRetainable(exprACTC)) { 281852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 28195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 28205acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 28215acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // of C pointer type 28225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 28235acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castType->isBlockPointerType()) // to ObjC|block type 28245acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 28255acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 28265acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 282752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(S, "CFBridgingRelease"); 2828ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2829ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge); 2830ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2831ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge ", 0); 2832ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2833ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2834ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge_transfer) 2835ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis << castExprType << br; 2836ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2837ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge_transfer ", 2838ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis br ? "CFBridgingRelease" : 0); 2839ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 28405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 28425acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 28435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28445acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from a CF type to an ARC type. 28455acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC)) { 284652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(S, "CFBridgingRetain"); 28475acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 28485acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 28495acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castExprType->isBlockPointerType()) // of ObjC|block type 28505acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 28515acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // to C pointer type 28525acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 28535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 28545acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 28555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 2856ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2857ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge); 2858ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2859ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge ", 0); 2860ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2861ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2862ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge_retained) 2863ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis << castType << br; 2864ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2865ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge_retained ", 2866ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis br ? "CFBridgingRetain" : 0); 2867ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 28685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 28705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 28715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_mismatched_cast) 28735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << (CCK != Sema::CCK_ImplicitConversion) 28745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << srcKind << castExprType << castType 28755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange << castExpr->getSourceRange(); 28765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 28775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallSema::ARCConversionResult 2879f85e193739c953358c865005855253af4f68a497John McCallSema::CheckObjCARCConversion(SourceRange castRange, QualType castType, 2880af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian Expr *&castExpr, CheckedConversionKind CCK) { 2881f85e193739c953358c865005855253af4f68a497John McCall QualType castExprType = castExpr->getType(); 28822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For the purposes of the classification, we assume reference types 28842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // will bind to temporaries. 28852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall QualType effCastType = castType; 28862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = castType->getAs<ReferenceType>()) 28872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall effCastType = ref->getPointeeType(); 2888f85e193739c953358c865005855253af4f68a497John McCall 2889f85e193739c953358c865005855253af4f68a497John McCall ARCConversionTypeClass exprACTC = classifyTypeForARCConversion(castExprType); 28902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass castACTC = classifyTypeForARCConversion(effCastType); 28916d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian if (exprACTC == castACTC) { 28926d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // check for viablity and report error if casting an rvalue to a 28936d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // life-time qualifier. 2894fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if ((castACTC == ACTC_retainable) && 28956d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian (CCK == CCK_CStyleCast || CCK == CCK_OtherCast) && 2896fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castType != castExprType)) { 2897fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian const Type *DT = castType.getTypePtr(); 2898fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QualType QDT = castType; 2899fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // We desugar some types but not others. We ignore those 2900fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // that cannot happen in a cast; i.e. auto, and those which 2901fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // should not be de-sugared; i.e typedef. 2902fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (const ParenType *PT = dyn_cast<ParenType>(DT)) 2903fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = PT->desugar(); 2904fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const TypeOfType *TP = dyn_cast<TypeOfType>(DT)) 2905fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = TP->desugar(); 2906fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const AttributedType *AT = dyn_cast<AttributedType>(DT)) 2907fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = AT->desugar(); 2908fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (QDT != castType && 2909fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT.getObjCLifetime() != Qualifiers::OCL_None) { 2910fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian SourceLocation loc = 2911fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castRange.isValid() ? castRange.getBegin() 2912fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian : castExpr->getExprLoc()); 2913fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian Diag(loc, diag::err_arc_nolifetime_behavior); 2914fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian } 29156d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 29166d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian return ACR_okay; 29176d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 29186d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian 29195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (isAnyCLike(exprACTC) && isAnyCLike(castACTC)) return ACR_okay; 29202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Allow all of these types to be cast to integer types (but not 29222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // vice-versa). 29232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_none && castType->isIntegralType(Context)) 29245acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 2925f85e193739c953358c865005855253af4f68a497John McCall 2926f85e193739c953358c865005855253af4f68a497John McCall // Allow casts between pointers to lifetime types (e.g., __strong id*) 2927f85e193739c953358c865005855253af4f68a497John McCall // and pointers to void (e.g., cv void *). Casting from void* to lifetime* 2928f85e193739c953358c865005855253af4f68a497John McCall // must be explicit. 29292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (exprACTC == ACTC_indirectRetainable && castACTC == ACTC_voidPtr) 29305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_indirectRetainable && exprACTC == ACTC_voidPtr && 29322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CCK != CCK_ImplicitConversion) 29335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall switch (ARCCastChecker(Context, exprACTC, castACTC).Visit(castExpr)) { 29362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For invalid casts, fall through. 29372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_invalid: 29382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall break; 29392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Do nothing for both bottom and +0. 29412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_bottom: 29422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusZero: 29435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the result is +1, consume it here. 29462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusOne: 29472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall castExpr = ImplicitCastExpr::Create(Context, castExpr->getType(), 29482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CK_ARCConsumeObject, castExpr, 29492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 0, VK_RValue); 29502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ExprNeedsCleanups = true; 29515acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 29535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29545acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // If this is a non-implicit cast from id or block type to a 29555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // CoreFoundation type, delay complaining in case the cast is used 29565acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // in an acceptable context. 29575acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC) && 29585acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK != CCK_ImplicitConversion) 29595acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_unbridged; 29605acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 29625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castExpr, exprACTC, CCK); 29635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 29655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// Given that we saw an expression with the ARCUnbridgedCastTy 29675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// placeholder type, complain bitterly. 29685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallvoid Sema::diagnoseARCUnbridgedCast(Expr *e) { 29695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // We expect the spurious ImplicitCastExpr to already have been stripped. 29705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 29715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CastExpr *realCast = cast<CastExpr>(e->IgnoreParens()); 29725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceRange castRange; 29745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType; 29755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CheckedConversionKind CCK; 29765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (CStyleCastExpr *cast = dyn_cast<CStyleCastExpr>(realCast)) { 29785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = SourceRange(cast->getLParenLoc(), cast->getRParenLoc()); 29795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 29805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_CStyleCast; 29815acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (ExplicitCastExpr *cast = dyn_cast<ExplicitCastExpr>(realCast)) { 29825acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = cast->getTypeInfoAsWritten()->getTypeLoc().getSourceRange(); 29835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 29845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_OtherCast; 29855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 29865acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getType(); 29875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_ImplicitConversion; 2988f85e193739c953358c865005855253af4f68a497John McCall } 29895acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ARCConversionTypeClass castACTC = 29915acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall classifyTypeForARCConversion(castType.getNonReferenceType()); 29925acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29935acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr = realCast->getSubExpr(); 29945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(classifyTypeForARCConversion(castExpr->getType()) == ACTC_retainable); 29955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 29975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castExpr, ACTC_retainable, CCK); 29985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 29995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// stripARCUnbridgedCast - Given an expression of ARCUnbridgedCast 30015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// type, remove the placeholder cast. 30025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallExpr *Sema::stripARCUnbridgedCast(Expr *e) { 30035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 30045acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (ParenExpr *pe = dyn_cast<ParenExpr>(e)) { 30065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(pe->getSubExpr()); 30075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) ParenExpr(pe->getLParen(), pe->getRParen(), sub); 30085acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (UnaryOperator *uo = dyn_cast<UnaryOperator>(e)) { 30095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(uo->getOpcode() == UO_Extension); 30105acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(uo->getSubExpr()); 30115acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) UnaryOperator(sub, UO_Extension, sub->getType(), 30125acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub->getValueKind(), sub->getObjectKind(), 30135acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall uo->getOperatorLoc()); 30145acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (GenericSelectionExpr *gse = dyn_cast<GenericSelectionExpr>(e)) { 30155acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!gse->isResultDependent()); 30165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30175acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned n = gse->getNumAssocs(); 30185acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<Expr*, 4> subExprs(n); 30195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<TypeSourceInfo*, 4> subTypes(n); 30205acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall for (unsigned i = 0; i != n; ++i) { 30215acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subTypes[i] = gse->getAssocTypeSourceInfo(i); 30225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = gse->getAssocExpr(i); 30235acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (i == gse->getResultIndex()) 30245acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub = stripARCUnbridgedCast(sub); 30255acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subExprs[i] = sub; 3026f85e193739c953358c865005855253af4f68a497John McCall } 30275acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30285acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) GenericSelectionExpr(Context, gse->getGenericLoc(), 30295acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getControllingExpr(), 30305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subTypes.data(), subExprs.data(), 30315acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall n, gse->getDefaultLoc(), 30325acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getRParenLoc(), 30335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->containsUnexpandedParameterPack(), 30345acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getResultIndex()); 30355acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 30365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(isa<ImplicitCastExpr>(e) && "bad form of unbridged cast!"); 30375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return cast<ImplicitCastExpr>(e)->getSubExpr(); 3038f85e193739c953358c865005855253af4f68a497John McCall } 3039f85e193739c953358c865005855253af4f68a497John McCall} 3040f85e193739c953358c865005855253af4f68a497John McCall 30417a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanianbool Sema::CheckObjCARCUnavailableWeakConversion(QualType castType, 30427a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType exprType) { 30437a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canCastType = 30447a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(castType).getUnqualifiedType(); 30457a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canExprType = 30467a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(exprType).getUnqualifiedType(); 30477a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (isa<ObjCObjectPointerType>(canCastType) && 30487a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian castType.getObjCLifetime() == Qualifiers::OCL_Weak && 30497a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->isObjCObjectPointerType()) { 30507a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (const ObjCObjectPointerType *ObjT = 30517a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->getAs<ObjCObjectPointerType>()) 30527a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (ObjT->getInterfaceDecl()->isArcWeakrefUnavailable()) 30537a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian return false; 30547a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian } 30557a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian return true; 30567a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian} 30577a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian 30587e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall/// Look for an ObjCReclaimReturnedObject cast and destroy it. 30597e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCallstatic Expr *maybeUndoReclaimObject(Expr *e) { 30607e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // For now, we just undo operands that are *immediately* reclaim 30617e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // expressions, which prevents the vast majority of potential 30627e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // problems here. To catch them all, we'd need to rebuild arbitrary 30637e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // value-propagating subexpressions --- we can't reliably rebuild 30647e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // in-place because of expression sharing. 30657e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall if (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 306633e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall if (ice->getCastKind() == CK_ARCReclaimReturnedObject) 30677e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return ice->getSubExpr(); 30687e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 30697e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return e; 30707e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall} 30717e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 3072f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::BuildObjCBridgedCast(SourceLocation LParenLoc, 3073f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3074f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3075f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo, 3076f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 30774906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall ExprResult SubResult = UsualUnaryConversions(SubExpr); 30784906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall if (SubResult.isInvalid()) return ExprError(); 30794906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall SubExpr = SubResult.take(); 30804906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall 3081f85e193739c953358c865005855253af4f68a497John McCall QualType T = TSInfo->getType(); 3082f85e193739c953358c865005855253af4f68a497John McCall QualType FromType = SubExpr->getType(); 3083f85e193739c953358c865005855253af4f68a497John McCall 30841d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK; 30851d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall 3086f85e193739c953358c865005855253af4f68a497John McCall bool MustConsume = false; 3087f85e193739c953358c865005855253af4f68a497John McCall if (T->isDependentType() || SubExpr->isTypeDependent()) { 3088f85e193739c953358c865005855253af4f68a497John McCall // Okay: we'll build a dependent expression type. 30891d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_Dependent; 3090f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isObjCARCBridgableType() && FromType->isCARCBridgableType()) { 3091f85e193739c953358c865005855253af4f68a497John McCall // Casting CF -> id 30921d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = (T->isBlockPointerType() ? CK_AnyPointerToBlockPointerCast 30931d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall : CK_CPointerToObjCPointerCast); 3094f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3095f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 3096f85e193739c953358c865005855253af4f68a497John McCall break; 3097f85e193739c953358c865005855253af4f68a497John McCall 309852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeRetained: { 309952b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(*this, "CFBridgingRelease"); 3100f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3101f85e193739c953358c865005855253af4f68a497John McCall << 2 3102f85e193739c953358c865005855253af4f68a497John McCall << FromType 3103f85e193739c953358c865005855253af4f68a497John McCall << (T->isBlockPointerType()? 1 : 0) 3104f85e193739c953358c865005855253af4f68a497John McCall << T 3105f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3106f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3107f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3108f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge"); 3109f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_transfer) 311052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FromType << br 3111f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, 311252b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRelease " 311352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian : "__bridge_transfer "); 3114f85e193739c953358c865005855253af4f68a497John McCall 3115f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3116f85e193739c953358c865005855253af4f68a497John McCall break; 311752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3118f85e193739c953358c865005855253af4f68a497John McCall 3119f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeTransfer: 3120f85e193739c953358c865005855253af4f68a497John McCall // We must consume the Objective-C object produced by the cast. 3121f85e193739c953358c865005855253af4f68a497John McCall MustConsume = true; 3122f85e193739c953358c865005855253af4f68a497John McCall break; 3123f85e193739c953358c865005855253af4f68a497John McCall } 3124f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isCARCBridgableType() && FromType->isObjCARCBridgableType()) { 3125f85e193739c953358c865005855253af4f68a497John McCall // Okay: id -> CF 31261d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 3127f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3128f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 31297e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // Reclaiming a value that's going to be __bridge-casted to CF 31307e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // is very dangerous, so we don't do it. 31317e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall SubExpr = maybeUndoReclaimObject(SubExpr); 3132f85e193739c953358c865005855253af4f68a497John McCall break; 3133f85e193739c953358c865005855253af4f68a497John McCall 3134f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeRetained: 3135f85e193739c953358c865005855253af4f68a497John McCall // Produce the object before casting it. 3136f85e193739c953358c865005855253af4f68a497John McCall SubExpr = ImplicitCastExpr::Create(Context, FromType, 313733e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall CK_ARCProduceObject, 3138f85e193739c953358c865005855253af4f68a497John McCall SubExpr, 0, VK_RValue); 3139f85e193739c953358c865005855253af4f68a497John McCall break; 3140f85e193739c953358c865005855253af4f68a497John McCall 314152b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeTransfer: { 314252b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(*this, "CFBridgingRetain"); 3143f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3144f85e193739c953358c865005855253af4f68a497John McCall << (FromType->isBlockPointerType()? 1 : 0) 3145f85e193739c953358c865005855253af4f68a497John McCall << FromType 3146f85e193739c953358c865005855253af4f68a497John McCall << 2 3147f85e193739c953358c865005855253af4f68a497John McCall << T 3148f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3149f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3150f85e193739c953358c865005855253af4f68a497John McCall 3151f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3152f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge "); 3153f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_retained) 315452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << T << br 315552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FixItHint::CreateReplacement(BridgeKeywordLoc, 315652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRetain " : "__bridge_retained"); 3157f85e193739c953358c865005855253af4f68a497John McCall 3158f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3159f85e193739c953358c865005855253af4f68a497John McCall break; 3160f85e193739c953358c865005855253af4f68a497John McCall } 316152b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3162f85e193739c953358c865005855253af4f68a497John McCall } else { 3163f85e193739c953358c865005855253af4f68a497John McCall Diag(LParenLoc, diag::err_arc_bridge_cast_incompatible) 3164f85e193739c953358c865005855253af4f68a497John McCall << FromType << T << Kind 3165f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3166f85e193739c953358c865005855253af4f68a497John McCall << TSInfo->getTypeLoc().getSourceRange(); 3167f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 3168f85e193739c953358c865005855253af4f68a497John McCall } 3169f85e193739c953358c865005855253af4f68a497John McCall 31701d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall Expr *Result = new (Context) ObjCBridgedCastExpr(LParenLoc, Kind, CK, 3171f85e193739c953358c865005855253af4f68a497John McCall BridgeKeywordLoc, 3172f85e193739c953358c865005855253af4f68a497John McCall TSInfo, SubExpr); 3173f85e193739c953358c865005855253af4f68a497John McCall 3174f85e193739c953358c865005855253af4f68a497John McCall if (MustConsume) { 3175f85e193739c953358c865005855253af4f68a497John McCall ExprNeedsCleanups = true; 317633e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall Result = ImplicitCastExpr::Create(Context, T, CK_ARCConsumeObject, Result, 3177f85e193739c953358c865005855253af4f68a497John McCall 0, VK_RValue); 3178f85e193739c953358c865005855253af4f68a497John McCall } 3179f85e193739c953358c865005855253af4f68a497John McCall 3180f85e193739c953358c865005855253af4f68a497John McCall return Result; 3181f85e193739c953358c865005855253af4f68a497John McCall} 3182f85e193739c953358c865005855253af4f68a497John McCall 3183f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::ActOnObjCBridgedCast(Scope *S, 3184f85e193739c953358c865005855253af4f68a497John McCall SourceLocation LParenLoc, 3185f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3186f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3187f85e193739c953358c865005855253af4f68a497John McCall ParsedType Type, 3188f85e193739c953358c865005855253af4f68a497John McCall SourceLocation RParenLoc, 3189f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 3190f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo = 0; 3191f85e193739c953358c865005855253af4f68a497John McCall QualType T = GetTypeFromParser(Type, &TSInfo); 3192f85e193739c953358c865005855253af4f68a497John McCall if (!TSInfo) 3193f85e193739c953358c865005855253af4f68a497John McCall TSInfo = Context.getTrivialTypeSourceInfo(T, LParenLoc); 3194f85e193739c953358c865005855253af4f68a497John McCall return BuildObjCBridgedCast(LParenLoc, Kind, BridgeKeywordLoc, TSInfo, 3195f85e193739c953358c865005855253af4f68a497John McCall SubExpr); 3196f85e193739c953358c865005855253af4f68a497John McCall} 3197