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 143c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose/// \brief Emits an error if the given method does not exist, or if the return 144c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose/// type is not an Objective-C object. 145c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rosestatic bool validateBoxingMethod(Sema &S, SourceLocation Loc, 146c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose const ObjCInterfaceDecl *Class, 147c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Selector Sel, const ObjCMethodDecl *Method) { 148c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method) { 149c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose // FIXME: Is there a better way to avoid quotes than using getName()? 150c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose S.Diag(Loc, diag::err_undeclared_boxing_method) << Sel << Class->getName(); 151c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return false; 152c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose } 153c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 154c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose // Make sure the return type is reasonable. 155c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose QualType ReturnType = Method->getResultType(); 156c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!ReturnType->isObjCObjectPointerType()) { 157c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose S.Diag(Loc, diag::err_objc_literal_method_sig) 158c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose << Sel; 159c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose S.Diag(Method->getLocation(), diag::note_objc_literal_method_return) 160c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose << ReturnType; 161c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return false; 162c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose } 163c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 164c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return true; 165c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose} 166c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 167ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// \brief Retrieve the NSNumber factory method that should be used to create 168ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// an Objective-C literal for the given type. 169ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic ObjCMethodDecl *getNSNumberFactoryMethod(Sema &S, SourceLocation Loc, 170eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType NumberType, 171eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard bool isLiteral = false, 172eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceRange R = SourceRange()) { 173ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Optional<NSAPI::NSNumberLiteralMethodKind> Kind 174eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard = S.NSAPIObj->getNSNumberFactoryMethodKind(NumberType); 175ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 176ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Kind) { 177eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (isLiteral) { 178eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_invalid_nsnumber_type) 179eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << NumberType << R; 180eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 181ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return 0; 182ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 183eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 184ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If we already looked up this method, we're done. 185ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.NSNumberLiteralMethods[*Kind]) 186ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return S.NSNumberLiteralMethods[*Kind]; 187ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 188ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = S.NSAPIObj->getNSNumberLiteralSelector(*Kind, 189ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*Instance=*/false); 190ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 191eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ASTContext &CX = S.Context; 192eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 193eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look up the NSNumber class, if we haven't done so already. It's cached 194eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // in the Sema instance. 195eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!S.NSNumberDecl) { 196d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose IdentifierInfo *NSNumberId = 197d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSAPIObj->getNSClassId(NSAPI::ClassId_NSNumber); 198eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NamedDecl *IF = S.LookupSingleName(S.TUScope, NSNumberId, 199eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Loc, Sema::LookupOrdinaryName); 200eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.NSNumberDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 201eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!S.NSNumberDecl) { 202eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (S.getLangOpts().DebuggerObjCLiteral) { 203eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Create a stub definition of NSNumber. 204d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSNumberDecl = ObjCInterfaceDecl::Create(CX, 205d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose CX.getTranslationUnitDecl(), 206d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), NSNumberId, 207d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0, SourceLocation()); 208eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else { 209eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Otherwise, require a declaration of NSNumber. 210eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_undeclared_nsnumber); 211eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return 0; 212eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 213eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (!S.NSNumberDecl->hasDefinition()) { 214eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_undeclared_nsnumber); 215eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return 0; 216eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 217eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 218eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // generate the pointer to NSNumber type. 219d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose QualType NSNumberObject = CX.getObjCInterfaceType(S.NSNumberDecl); 220d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSNumberPointer = CX.getObjCObjectPointerType(NSNumberObject); 221eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 222eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 223ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for the appropriate method within NSNumber. 224d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose ObjCMethodDecl *Method = S.NSNumberDecl->lookupClassMethod(Sel); 2254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && S.getLangOpts().DebuggerObjCLiteral) { 226eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // create a stub definition this NSNumber factory method. 227ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek TypeSourceInfo *ResultTInfo = 0; 228eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Method = ObjCMethodDecl::Create(CX, SourceLocation(), SourceLocation(), Sel, 229d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSNumberPointer, ResultTInfo, 230d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSNumberDecl, 231eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isInstance=*/false, /*isVariadic=*/false, 232eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isSynthesized=*/false, 233eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isImplicitlyDeclared=*/true, 234d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*isDefined=*/false, 235d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose ObjCMethodDecl::Required, 236eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*HasRelatedResultType=*/false); 237ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *value = ParmVarDecl::Create(S.Context, Method, 238ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 239eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard &CX.Idents.get("value"), 240d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NumberType, /*TInfo=*/0, SC_None, 241d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SC_None, 0); 242ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Method->setMethodParams(S.Context, value, ArrayRef<SourceLocation>()); 243ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 244ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 245c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(S, Loc, S.NSNumberDecl, Sel, Method)) 246ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return 0; 247ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 248ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Note: if the parameter type is out-of-line, we'll catch it later in the 249ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // implicit conversion. 250ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 251ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.NSNumberLiteralMethods[*Kind] = Method; 252ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Method; 253ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 254ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 255eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard/// BuildObjCNumericLiteral - builds an ObjCBoxedExpr AST node for the 256eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard/// numeric literal expression. Type of the expression will be "NSNumber *". 257ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCNumericLiteral(SourceLocation AtLoc, Expr *Number) { 258ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Determine the type of the literal. 259ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType NumberType = Number->getType(); 260ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (CharacterLiteral *Char = dyn_cast<CharacterLiteral>(Number)) { 261ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // In C, character literals have type 'int'. That's not the type we want 262ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // to use to determine the Objective-c literal kind. 263ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Char->getKind()) { 264ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::Ascii: 265ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.CharTy; 266ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 267ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 268ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::Wide: 269ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.getWCharType(); 270ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 271ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 272ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::UTF16: 273ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.Char16Ty; 274ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 275ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 276ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::UTF32: 277ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.Char32Ty; 278ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 279ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 280ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 281ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 282ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for the appropriate method within NSNumber. 283ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Construct the literal. 284e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceRange NR(Number->getSourceRange()); 285eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *Method = getNSNumberFactoryMethod(*this, AtLoc, NumberType, 286e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard true, NR); 287ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Method) 288ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 289ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 290ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Convert the number to the type that the parameter expects. 291e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParmVarDecl *ParamDecl = Method->param_begin()[0]; 292e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 293e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParamDecl); 294e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ExprResult ConvertedNumber = PerformCopyInitialization(Entity, 295e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceLocation(), 296e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard Owned(Number)); 297ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (ConvertedNumber.isInvalid()) 298ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 299ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Number = ConvertedNumber.get(); 300ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 301e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard // Use the effective source range of the literal, including the leading '@'. 302ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 303e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard new (Context) ObjCBoxedExpr(Number, NSNumberPointer, Method, 304e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceRange(AtLoc, NR.getEnd()))); 305ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 306ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 307ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::ActOnObjCBoolLiteral(SourceLocation AtLoc, 308ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation ValueLoc, 309ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool Value) { 310ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Inner; 3114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 312ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ActOnCXXBoolLiteral(ValueLoc, Value? tok::kw_true : tok::kw_false); 313ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } else { 314ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // C doesn't actually have a way to represent literal values of type 315ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // _Bool. So, we'll use 0/1 and implicit cast to _Bool. 316ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ActOnIntegerConstant(ValueLoc, Value? 1 : 0); 317ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ImpCastExprToType(Inner.get(), Context.BoolTy, 318ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek CK_IntegralToBoolean); 319ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 320ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 321ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return BuildObjCNumericLiteral(AtLoc, Inner.get()); 322ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 323ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 324ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// \brief Check that the given expression is a valid element of an Objective-C 325ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// collection literal. 326ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic ExprResult CheckObjCCollectionLiteralElement(Sema &S, Expr *Element, 327ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType T) { 328ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If the expression is type-dependent, there's nothing for us to do. 329ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Element->isTypeDependent()) 330ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Element; 331ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 332ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = S.CheckPlaceholderExpr(Element); 333ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 334ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 335ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 336ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 337ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // In C++, check for an implicit conversion to an Objective-C object pointer 338ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // type. 3394e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().CPlusPlus && Element->getType()->isRecordType()) { 340ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializedEntity Entity 341d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose = InitializedEntity::InitializeParameter(S.Context, T, 342d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*Consumed=*/false); 343ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializationKind Kind 344d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose = InitializationKind::CreateCopy(Element->getLocStart(), 345d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation()); 346ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializationSequence Seq(S, Entity, Kind, &Element, 1); 347ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Seq.Failed()) 3485354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer return Seq.Perform(S, Entity, Kind, Element); 349ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 350ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 351ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *OrigElement = Element; 352ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 353ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Perform lvalue-to-rvalue conversion. 354ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.DefaultLvalueConversion(Element); 355ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 356ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 357ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 358ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 359ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure that we have an Objective-C pointer type or block. 360ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Element->getType()->isObjCObjectPointerType() && 361ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Element->getType()->isBlockPointerType()) { 362ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool Recovered = false; 363ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 364ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If this is potentially an Objective-C numeric literal, add the '@'. 365ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (isa<IntegerLiteral>(OrigElement) || 366ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<CharacterLiteral>(OrigElement) || 367ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<FloatingLiteral>(OrigElement) || 368ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<ObjCBoolLiteralExpr>(OrigElement) || 369ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<CXXBoolLiteralExpr>(OrigElement)) { 370ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.NSAPIObj->getNSNumberFactoryMethodKind(OrigElement->getType())) { 371ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek int Which = isa<CharacterLiteral>(OrigElement) ? 1 372ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : (isa<CXXBoolLiteralExpr>(OrigElement) || 373ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<ObjCBoolLiteralExpr>(OrigElement)) ? 2 374ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : 3; 375ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 376ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(OrigElement->getLocStart(), diag::err_box_literal_collection) 377ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Which << OrigElement->getSourceRange() 378ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FixItHint::CreateInsertion(OrigElement->getLocStart(), "@"); 379ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 380ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.BuildObjCNumericLiteral(OrigElement->getLocStart(), 381ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OrigElement); 382ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 383ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 384ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 385ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 386ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Recovered = true; 387ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 388ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 389ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If this is potentially an Objective-C string literal, add the '@'. 390ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else if (StringLiteral *String = dyn_cast<StringLiteral>(OrigElement)) { 391ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (String->isAscii()) { 392ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(OrigElement->getLocStart(), diag::err_box_literal_collection) 393ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 0 << OrigElement->getSourceRange() 394ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FixItHint::CreateInsertion(OrigElement->getLocStart(), "@"); 395ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 396ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.BuildObjCStringLiteral(OrigElement->getLocStart(), String); 397ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 398ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 399ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 400ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 401ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Recovered = true; 402ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 403ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 404ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 405ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Recovered) { 406ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(Element->getLocStart(), diag::err_invalid_collection_element) 407ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Element->getType(); 408ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 409ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 410ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 411ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 412ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure that the element has the type that the container factory 413ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // function expects. 414ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return S.PerformCopyInitialization( 415ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializedEntity::InitializeParameter(S.Context, T, 416ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*Consumed=*/false), 417ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element->getLocStart(), Element); 418ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 419ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 420eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick BeardExprResult Sema::BuildObjCBoxedExpr(SourceRange SR, Expr *ValueExpr) { 421eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ValueExpr->isTypeDependent()) { 422eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 423eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(ValueExpr, Context.DependentTy, NULL, SR); 424eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return Owned(BoxedExpr); 425eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 426eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *BoxingMethod = NULL; 427eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType BoxedType; 428eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to an RValue, so we can check for pointer types... 429eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ExprResult RValue = DefaultFunctionArrayLvalueConversion(ValueExpr); 430eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (RValue.isInvalid()) { 431eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 432eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 433eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = RValue.get(); 434e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard QualType ValueType(ValueExpr->getType()); 435eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (const PointerType *PT = ValueType->getAs<PointerType>()) { 436eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType PointeeType = PT->getPointeeType(); 437eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (Context.hasSameUnqualifiedType(PointeeType, Context.CharTy)) { 438eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 439eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!NSStringDecl) { 440eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *NSStringId = 441eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSAPIObj->getNSClassId(NSAPI::ClassId_NSString); 442eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NamedDecl *Decl = LookupSingleName(TUScope, NSStringId, 443eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SR.getBegin(), LookupOrdinaryName); 444eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSStringDecl = dyn_cast_or_null<ObjCInterfaceDecl>(Decl); 445eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!NSStringDecl) { 446eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (getLangOpts().DebuggerObjCLiteral) { 447eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Support boxed expressions in the debugger w/o NSString declaration. 448d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose DeclContext *TU = Context.getTranslationUnitDecl(); 449d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSStringDecl = ObjCInterfaceDecl::Create(Context, TU, 450d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 451d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSStringId, 452eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 0, SourceLocation()); 453eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else { 454eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_undeclared_nsstring); 455eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 456eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 457eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (!NSStringDecl->hasDefinition()) { 458eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_undeclared_nsstring); 459eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 460eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 461eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard assert(NSStringDecl && "NSStringDecl should not be NULL"); 462d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose QualType NSStringObject = Context.getObjCInterfaceType(NSStringDecl); 463d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSStringPointer = Context.getObjCObjectPointerType(NSStringObject); 464eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 465eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 466eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!StringWithUTF8StringMethod) { 467eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *II = &Context.Idents.get("stringWithUTF8String"); 468eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Selector stringWithUTF8String = Context.Selectors.getUnarySelector(II); 469eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 470eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look for the appropriate method within NSString. 471c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose BoxingMethod = NSStringDecl->lookupClassMethod(stringWithUTF8String); 472c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!BoxingMethod && getLangOpts().DebuggerObjCLiteral) { 473eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Debugger needs to work even if NSString hasn't been defined. 474eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard TypeSourceInfo *ResultTInfo = 0; 475eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *M = 476eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl::Create(Context, SourceLocation(), SourceLocation(), 477eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard stringWithUTF8String, NSStringPointer, 478eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ResultTInfo, NSStringDecl, 479eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isInstance=*/false, /*isVariadic=*/false, 480eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isSynthesized=*/false, 481eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isImplicitlyDeclared=*/true, 482eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*isDefined=*/false, 483eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl::Required, 484eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*HasRelatedResultType=*/false); 485d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose QualType ConstCharType = Context.CharTy.withConst(); 486eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ParmVarDecl *value = 487eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ParmVarDecl::Create(Context, M, 488eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceLocation(), SourceLocation(), 489eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard &Context.Idents.get("value"), 490d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(ConstCharType), 491eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard /*TInfo=*/0, 492eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SC_None, SC_None, 0); 493eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard M->setMethodParams(Context, value, ArrayRef<SourceLocation>()); 494c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose BoxingMethod = M; 495eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 49699446d934c85e8b705cc6b8624e65b8eb8c22985Jordy Rose 497c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSStringDecl, 498c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose stringWithUTF8String, BoxingMethod)) 499c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return ExprError(); 500c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 501c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose StringWithUTF8StringMethod = BoxingMethod; 502eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 503eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 504eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod = StringWithUTF8StringMethod; 505eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxedType = NSStringPointer; 506eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 507e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard } else if (ValueType->isBuiltinType()) { 508eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // The other types we support are numeric, char and BOOL/bool. We could also 509eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // provide limited support for structure types, such as NSRange, NSRect, and 510eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // NSSize. See NSValue (NSValueGeometryExtensions) in <Foundation/NSGeometry.h> 511eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // for more details. 512eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 513eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Check for a top-level character literal. 514eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (const CharacterLiteral *Char = 515eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard dyn_cast<CharacterLiteral>(ValueExpr->IgnoreParens())) { 516eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // In C, character literals have type 'int'. That's not the type we want 517eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // to use to determine the Objective-c literal kind. 518eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard switch (Char->getKind()) { 519eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::Ascii: 520eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.CharTy; 521eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 522eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 523eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::Wide: 524eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.getWCharType(); 525eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 526eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 527eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::UTF16: 528eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.Char16Ty; 529eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 530eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 531eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::UTF32: 532eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.Char32Ty; 533eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 534eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 535eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 536eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 537eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // FIXME: Do I need to do anything special with BoolTy expressions? 538eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 539eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look for the appropriate method within NSNumber. 540eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod = getNSNumberFactoryMethod(*this, SR.getBegin(), ValueType); 541eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxedType = NSNumberPointer; 542f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis 543f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis } else if (const EnumType *ET = ValueType->getAs<EnumType>()) { 544f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis if (!ET->getDecl()->isComplete()) { 545f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis Diag(SR.getBegin(), diag::err_objc_incomplete_boxed_expression_type) 546f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis << ValueType << ValueExpr->getSourceRange(); 547f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis return ExprError(); 548f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis } 549f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis 550f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis BoxingMethod = getNSNumberFactoryMethod(*this, SR.getBegin(), 551f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis ET->getDecl()->getIntegerType()); 552f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis BoxedType = NSNumberPointer; 553eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 554eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 555eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!BoxingMethod) { 556eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_objc_illegal_boxed_expression_type) 557eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << ValueType << ValueExpr->getSourceRange(); 558eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 559eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 560eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 561eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to the type that the parameter requires. 562e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParmVarDecl *ParamDecl = BoxingMethod->param_begin()[0]; 563e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 564e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParamDecl); 565e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ExprResult ConvertedValueExpr = PerformCopyInitialization(Entity, 566e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceLocation(), 567e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard Owned(ValueExpr)); 568eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ConvertedValueExpr.isInvalid()) 569eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 570eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = ConvertedValueExpr.get(); 571eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 572eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 573eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(ValueExpr, BoxedType, 574eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod, SR); 575eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return MaybeBindToTemporary(BoxedExpr); 576eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard} 577eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 5781503f0ddab0057e33efa21393fc0577580d6287aJohn McCall/// Build an ObjC subscript pseudo-object expression, given that 5791503f0ddab0057e33efa21393fc0577580d6287aJohn McCall/// that's supported by the runtime. 580ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCSubscriptExpression(SourceLocation RB, Expr *BaseExpr, 581ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *IndexExpr, 582ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *getterMethod, 583ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *setterMethod) { 5841503f0ddab0057e33efa21393fc0577580d6287aJohn McCall assert(!LangOpts.ObjCRuntime.isSubscriptPointerArithmetic()); 585260611a32535c851237926bfcf78869b13c07d5bJohn McCall 5861503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // We can't get dependent types here; our callers should have 5871503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // filtered them out. 5881503f0ddab0057e33efa21393fc0577580d6287aJohn McCall assert((!BaseExpr->isTypeDependent() && !IndexExpr->isTypeDependent()) && 5891503f0ddab0057e33efa21393fc0577580d6287aJohn McCall "base or index cannot have dependent type here"); 5901503f0ddab0057e33efa21393fc0577580d6287aJohn McCall 5911503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // Filter out placeholders in the index. In theory, overloads could 5921503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // be preserved here, although that might not actually work correctly. 593ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = CheckPlaceholderExpr(IndexExpr); 594ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 595ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 596ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr = Result.get(); 597ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 5981503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // Perform lvalue-to-rvalue conversion on the base. 599ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = DefaultLvalueConversion(BaseExpr); 600ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 601ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 602ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr = Result.get(); 6031503f0ddab0057e33efa21393fc0577580d6287aJohn McCall 6041503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // Build the pseudo-object expression. 605ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Owned(ObjCSubscriptRefExpr::Create(Context, 606ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr, 607ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr, 608ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.PseudoObjectTy, 609ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek getterMethod, 610ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek setterMethod, RB)); 611ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 612ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 613ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 614ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCArrayLiteral(SourceRange SR, MultiExprArg Elements) { 615ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSArray class, if we haven't done so already. 616ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 617ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 618ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 619ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), 620ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek LookupOrdinaryName); 621ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 6224e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSArrayDecl && getLangOpts().DebuggerObjCLiteral) 623ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = ObjCInterfaceDecl::Create (Context, 624ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 625ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 626ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 627ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0, SourceLocation()); 628ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 629ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 630ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsarray); 631ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 632ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 633ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 634ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 635ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the arrayWithObjects:count: method, if we haven't done so already. 636ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 637ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod) { 638ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector 639ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sel = NSAPIObj->getNSArraySelector(NSAPI::NSArr_arrayWithObjectsCount); 640c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ObjCMethodDecl *Method = NSArrayDecl->lookupClassMethod(Sel); 641c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method && getLangOpts().DebuggerObjCLiteral) { 642ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek TypeSourceInfo *ResultTInfo = 0; 643c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method = ObjCMethodDecl::Create(Context, 644ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 645ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 646ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultTInfo, 647ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 648ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 649ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isSynthesized=*/false, 650ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 651ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 652ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 653ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 2> Params; 654c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *objects = ParmVarDecl::Create(Context, Method, 655d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 656d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 657d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("objects"), 658d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 659d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 660d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 661ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 662c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *cnt = ParmVarDecl::Create(Context, Method, 663d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 664d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 665d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("cnt"), 666d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.UnsignedLongTy, 667d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 668d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 669ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 670c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method->setMethodParams(Context, Params, ArrayRef<SourceLocation>()); 671ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 672ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 673c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSArrayDecl, Sel, Method)) 674ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 675c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 6763eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all elements should be converted to. 6773eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType T = Method->param_begin()[0]->getType(); 6783eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrT = T->getAs<PointerType>(); 6793eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrT || 6803eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrT->getPointeeType(), IdT)) { 6813eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 6823eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 6833eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[0]->getLocation(), 6843eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 6853eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 0 << T 6863eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 6873eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 6883eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 6893eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 6903eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Check that the 'count' parameter is integral. 6913eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!Method->param_begin()[1]->getType()->isIntegerType()) { 6923eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 6933eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 6943eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[1]->getLocation(), 6953eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 6963eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 1 6973eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Method->param_begin()[1]->getType() 6983eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << "integral"; 6993eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 7003eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 7013eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 7023eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // We've found a good +arrayWithObjects:count: method. Save it! 703c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ArrayWithObjectsMethod = Method; 704ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 705ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 7063eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ObjectsType = ArrayWithObjectsMethod->param_begin()[0]->getType(); 7073eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType RequiredType = ObjectsType->castAs<PointerType>()->getPointeeType(); 708ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 709ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the elements provided is valid in a collection literal, 710ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // performing conversions as necessary. 7115354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **ElementsBuffer = Elements.data(); 712ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = Elements.size(); I != N; ++I) { 713ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Converted = CheckObjCCollectionLiteralElement(*this, 714ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I], 7153eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose RequiredType); 716ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Converted.isInvalid()) 717ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 718ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 719ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I] = Converted.get(); 720ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 721ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 722ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 723ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 724ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSArrayDecl)); 725ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 726ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 7275354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ObjCArrayLiteral::Create(Context, Elements, Ty, 7285354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ArrayWithObjectsMethod, SR)); 729ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 730ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 731ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCDictionaryLiteral(SourceRange SR, 732ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryElement *Elements, 733ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned NumElements) { 734ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSDictionary class, if we haven't done so already. 735ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 736ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 737ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 738ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), LookupOrdinaryName); 739ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 7404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSDictionaryDecl && getLangOpts().DebuggerObjCLiteral) 741ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = ObjCInterfaceDecl::Create (Context, 742ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 743ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 744ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 745ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0, SourceLocation()); 746ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 747ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 748ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsdictionary); 749ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 750ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 751ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 752ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 753ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the dictionaryWithObjects:forKeys:count: method, if we haven't done 754ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // so already. 755ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 756ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod) { 757ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = NSAPIObj->getNSDictionarySelector( 758d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSAPI::NSDict_dictionaryWithObjectsForKeysCount); 759c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ObjCMethodDecl *Method = NSDictionaryDecl->lookupClassMethod(Sel); 760c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method && getLangOpts().DebuggerObjCLiteral) { 761c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method = ObjCMethodDecl::Create(Context, 762ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 763ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 764ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0 /*TypeSourceInfo */, 765ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 766ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 767ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isSynthesized=*/false, 768ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 769ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 770ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 771ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 3> Params; 772c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *objects = ParmVarDecl::Create(Context, Method, 773d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 774d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 775d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("objects"), 776d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 777d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 778d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 779ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 780c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *keys = ParmVarDecl::Create(Context, Method, 781d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 782d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 783d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("keys"), 784d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 785d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 786d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 787ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(keys); 788c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *cnt = ParmVarDecl::Create(Context, Method, 789d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 790d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 791d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("cnt"), 792d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.UnsignedLongTy, 793d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 794d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 795ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 796c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method->setMethodParams(Context, Params, ArrayRef<SourceLocation>()); 797ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 798ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 799c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSDictionaryDecl, Sel, 800c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method)) 801c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return ExprError(); 802c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 8033eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all values should be converted to. 8043eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValueT = Method->param_begin()[0]->getType(); 8053eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrValue = ValueT->getAs<PointerType>(); 8063eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrValue || 8073eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrValue->getPointeeType(), IdT)) { 8083eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8093eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 8103eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[0]->getLocation(), 8113eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 8123eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 0 << ValueT 8133eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 8143eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 8153eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 816ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 8173eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all keys should be converted to. 8183eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeyT = Method->param_begin()[1]->getType(); 8193eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrKey = KeyT->getAs<PointerType>(); 8203eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrKey || 8213eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 8223eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose IdT)) { 8233eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose bool err = true; 8243eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (PtrKey) { 8253eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (QIDNSCopying.isNull()) { 8263eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // key argument of selector is id<NSCopying>? 8273eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (ObjCProtocolDecl *NSCopyingPDecl = 8283eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose LookupProtocol(&Context.Idents.get("NSCopying"), SR.getBegin())) { 8293eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose ObjCProtocolDecl *PQ[] = {NSCopyingPDecl}; 8303eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying = 8313eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 8323eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose (ObjCProtocolDecl**) PQ,1); 8333eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying = Context.getObjCObjectPointerType(QIDNSCopying); 8343eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 835ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8363eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!QIDNSCopying.isNull()) 8373eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose err = !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 8383eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying); 839ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 840ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 8413eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (err) { 8423eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8433eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 8443eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[1]->getLocation(), 8453eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 8463eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 1 << KeyT 8473eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 8483eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 8493eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 8503eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 8513eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8523eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Check that the 'count' parameter is integral. 8533eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType CountType = Method->param_begin()[2]->getType(); 8543eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!CountType->isIntegerType()) { 855ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8563eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 8573eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[2]->getLocation(), 858ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 8593eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 2 << CountType 8603eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << "integral"; 861ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 862ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8633eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8643eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // We've found a good +dictionaryWithObjects:keys:count: method; save it! 8653eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose DictionaryWithObjectsMethod = Method; 866ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8673eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8683eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValuesT = DictionaryWithObjectsMethod->param_begin()[0]->getType(); 8693eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValueT = ValuesT->castAs<PointerType>()->getPointeeType(); 8703eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeysT = DictionaryWithObjectsMethod->param_begin()[1]->getType(); 8713eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeyT = KeysT->castAs<PointerType>()->getPointeeType(); 872ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 873ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the keys and values provided is valid in a collection 874ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // literal, performing conversions as necessary. 875ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool HasPackExpansions = false; 876ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = NumElements; I != N; ++I) { 877ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the key. 878ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Key = CheckObjCCollectionLiteralElement(*this, Elements[I].Key, 879ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek KeyT); 880ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Key.isInvalid()) 881ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 882ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 883ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the value. 884ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Value 885ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = CheckObjCCollectionLiteralElement(*this, Elements[I].Value, ValueT); 886ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Value.isInvalid()) 887ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 888ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 889ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Key = Key.get(); 890ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value = Value.get(); 891ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 892ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Elements[I].EllipsisLoc.isInvalid()) 893ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek continue; 894ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 895ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Elements[I].Key->containsUnexpandedParameterPack() && 896ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Elements[I].Value->containsUnexpandedParameterPack()) { 897ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(Elements[I].EllipsisLoc, 898ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_pack_expansion_without_parameter_packs) 899ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << SourceRange(Elements[I].Key->getLocStart(), 900ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value->getLocEnd()); 901ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 902ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 903ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 904ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions = true; 905ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 906ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 907ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 908ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 909ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 910ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSDictionaryDecl)); 911ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 912ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryLiteral::Create(Context, 913ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::makeArrayRef(Elements, 914ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumElements), 915ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions, 916ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Ty, 917ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DictionaryWithObjectsMethod, SR)); 91885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 91985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 9203b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios KyrtzidisExprResult Sema::BuildObjCEncodeExpression(SourceLocation AtLoc, 92181d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *EncodedTypeInfo, 922fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson SourceLocation RParenLoc) { 92381d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = EncodedTypeInfo->getType(); 924fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson QualType StrTy; 9251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EncodedType->isDependentType()) 926fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.DependentTy; 927fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson else { 9286c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian if (!EncodedType->getAsArrayTypeUnsafe() && //// Incomplete array is handled. 9296c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian !EncodedType->isVoidType()) // void is handled too. 9303b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis if (RequireCompleteType(AtLoc, EncodedType, 931d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_incomplete_type_objc_at_encode, 932d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor EncodedTypeInfo->getTypeLoc())) 9333b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis return ExprError(); 9343b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis 935fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson std::string Str; 936fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson Context.getObjCEncodingForType(EncodedType, Str); 937fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 938fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // The type of @encode is the same as the type of the corresponding string, 939fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // which is an array type. 940fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.CharTy; 941fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // A C++ string literal has a const-qualified element type (C++ 2.13.4p1). 9424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) 943fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy.addConst(); 944fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.getConstantArrayType(StrTy, llvm::APInt(32, Str.size()+1), 945fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson ArrayType::Normal, 0); 946fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson } 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 94881d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return new (Context) ObjCEncodeExpr(StrTy, EncodedTypeInfo, AtLoc, RParenLoc); 949fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson} 950fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 951f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCEncodeExpression(SourceLocation AtLoc, 952f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation EncodeLoc, 953f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 954f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ParsedType ty, 955f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 956e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info ? 95781d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *TInfo; 95881d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = GetTypeFromParser(ty, &TInfo); 95981d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor if (!TInfo) 96081d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TInfo = Context.getTrivialTypeSourceInfo(EncodedType, 96181d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor PP.getLocForEndOfToken(LParenLoc)); 96285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 96381d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return BuildObjCEncodeExpression(AtLoc, TInfo, RParenLoc); 96485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 96585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 966f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCSelectorExpression(Selector Sel, 967f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 968f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation SelLoc, 969f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 970f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCMethodDecl *Method = LookupInstanceMethodInGlobalPool(Sel, 9726b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LParenLoc, RParenLoc), false, false); 9737ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian if (!Method) 9747ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 9757ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian SourceRange(LParenLoc, RParenLoc)); 9767ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian if (!Method) 9777ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian Diag(SelLoc, diag::warn_undeclared_selector) << Sel; 9784c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian 9794c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian if (!Method || 9804c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian Method->getImplementationControl() != ObjCMethodDecl::Optional) { 9814c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian llvm::DenseMap<Selector, SourceLocation>::iterator Pos 9824c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian = ReferencedSelectors.find(Sel); 9834c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian if (Pos == ReferencedSelectors.end()) 9844c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian ReferencedSelectors.insert(std::make_pair(Sel, SelLoc)); 9854c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian } 9863fe104154dd2e8ffb351142d74f308938b5c99bfFariborz Jahanian 987f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from using @selector for 988f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount. 9894e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 990f85e193739c953358c865005855253af4f68a497John McCall switch (Sel.getMethodFamily()) { 991f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 992f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 993f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 994f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 995f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 996f85e193739c953358c865005855253af4f68a497John McCall Diag(AtLoc, diag::err_arc_illegal_selector) << 997f85e193739c953358c865005855253af4f68a497John McCall Sel << SourceRange(LParenLoc, RParenLoc); 998f85e193739c953358c865005855253af4f68a497John McCall break; 999f85e193739c953358c865005855253af4f68a497John McCall 1000f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 1001f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 1002f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 100380cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 1004f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 1005f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 1006f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 1007f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 10089670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 1009f85e193739c953358c865005855253af4f68a497John McCall break; 1010f85e193739c953358c865005855253af4f68a497John McCall } 1011f85e193739c953358c865005855253af4f68a497John McCall } 1012a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCSelType(); 10136d5a1c28593443f3973ef38f8fa042d59182412dDaniel Dunbar return new (Context) ObjCSelectorExpr(Ty, Sel, AtLoc, RParenLoc); 101485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 101585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1016f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCProtocolExpression(IdentifierInfo *ProtocolId, 1017f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 1018f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation ProtoLoc, 1019f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 10207d24e289bea2accaaed79c6ca3e5cdd0c204ddc1Argyrios Kyrtzidis SourceLocation ProtoIdLoc, 1021f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 10227d24e289bea2accaaed79c6ca3e5cdd0c204ddc1Argyrios Kyrtzidis ObjCProtocolDecl* PDecl = LookupProtocol(ProtocolId, ProtoIdLoc); 102385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner if (!PDecl) { 10243c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner Diag(ProtoLoc, diag::err_undeclared_protocol) << ProtocolId; 102585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 102685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 10271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1028a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCProtoType(); 1029a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (Ty.isNull()) 103085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 103114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 10327d24e289bea2accaaed79c6ca3e5cdd0c204ddc1Argyrios Kyrtzidis return new (Context) ObjCProtocolExpr(Ty, PDecl, AtLoc, ProtoIdLoc, RParenLoc); 103385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 103485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 103526743b20e4a8c2a986e6453f0c38beba0afef633John McCall/// Try to capture an implicit reference to 'self'. 1036b942cb24a060435b18fef5b43eb33d77afc0d03aEli FriedmanObjCMethodDecl *Sema::tryCaptureObjCSelf(SourceLocation Loc) { 1037b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman DeclContext *DC = getFunctionLevelDeclContext(); 103826743b20e4a8c2a986e6453f0c38beba0afef633John McCall 103926743b20e4a8c2a986e6453f0c38beba0afef633John McCall // If we're not in an ObjC method, error out. Note that, unlike the 104026743b20e4a8c2a986e6453f0c38beba0afef633John McCall // C++ case, we don't require an instance method --- class methods 104126743b20e4a8c2a986e6453f0c38beba0afef633John McCall // still have a 'self', and we really do still need to capture it! 104226743b20e4a8c2a986e6453f0c38beba0afef633John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(DC); 104326743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (!method) 104426743b20e4a8c2a986e6453f0c38beba0afef633John McCall return 0; 104526743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1046999713eea940f4e087cc3ac878689c5c5c7a7225Douglas Gregor tryCaptureVariable(method->getSelfDecl(), Loc); 104726743b20e4a8c2a986e6453f0c38beba0afef633John McCall 104826743b20e4a8c2a986e6453f0c38beba0afef633John McCall return method; 104926743b20e4a8c2a986e6453f0c38beba0afef633John McCall} 105026743b20e4a8c2a986e6453f0c38beba0afef633John McCall 10515c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregorstatic QualType stripObjCInstanceType(ASTContext &Context, QualType T) { 10525c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor if (T == Context.getObjCInstanceType()) 10535c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return Context.getObjCIdType(); 10545c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 10555c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return T; 10565c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor} 10575c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 1058926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas GregorQualType Sema::getMessageSendResultType(QualType ReceiverType, 1059926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ObjCMethodDecl *Method, 1060926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage) { 1061926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor assert(Method && "Must have a method"); 1062926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1063926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Method->getSendResultType(); 1064926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1065926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // If a method has a related return type: 1066926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the method found is an instance method, but the message send 1067926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // was a class message send, T is the declared return type of the method 1068926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // found 1069926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Method->isInstanceMethod() && isClassMessage) 10705c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1071926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1072926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is super, T is a pointer to the class of the 1073926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // enclosing method definition 1074926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (isSuperMessage) { 1075926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCMethodDecl *CurMethod = getCurMethodDecl()) 1076926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCInterfaceDecl *Class = CurMethod->getClassInterface()) 1077926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType( 1078926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(Class)); 1079926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor } 1080926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1081926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is the name of a class U, T is a pointer to U 1082926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->getAs<ObjCInterfaceType>() || 1083926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedInterfaceType()) 1084926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType(ReceiverType); 1085926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is of type Class or qualified Class type, 1086926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // T is the declared return type of the method. 1087926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->isObjCClassType() || 1088926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedClassType()) 10895c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1090926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1091926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is id, qualified id, Class, or qualified Class, T 1092926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // is the receiver type, otherwise 1093926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - T is the type of the receiver expression. 1094926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return ReceiverType; 1095926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 1096926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1097926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorvoid Sema::EmitRelatedResultTypeNote(const Expr *E) { 1098926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor E = E->IgnoreParenImpCasts(); 1099926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMessageExpr *MsgSend = dyn_cast<ObjCMessageExpr>(E); 1100926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!MsgSend) 1101926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1102926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1103926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMethodDecl *Method = MsgSend->getMethodDecl(); 1104926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method) 1105926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1106926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1107926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1108926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1109926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1110926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Context.hasSameUnqualifiedType(Method->getResultType() 1111926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor .getNonReferenceType(), 1112926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor MsgSend->getType())) 1113926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1114926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1115e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor if (!Context.hasSameUnqualifiedType(Method->getResultType(), 1116e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Context.getObjCInstanceType())) 1117e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return; 1118e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 1119926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Diag(Method->getLocation(), diag::note_related_result_type_inferred) 1120926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << Method->isInstanceMethod() << Method->getSelector() 1121926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << MsgSend->getType(); 1122926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 112326743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1124926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorbool Sema::CheckMessageArgumentTypes(QualType ReceiverType, 1125926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Expr **Args, unsigned NumArgs, 1126376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian Selector Sel, 1127376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian ArrayRef<SourceLocation> SelectorLocs, 1128376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian ObjCMethodDecl *Method, 1129926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage, 1130637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar SourceLocation lbrac, SourceLocation rbrac, 1131f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType &ReturnType, ExprValueKind &VK) { 1132637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar if (!Method) { 11336660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar // Apply default argument promotion as for (C99 6.5.2.2p6). 113492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor for (unsigned i = 0; i != NumArgs; i++) { 113592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 113692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 113792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1138429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultArgumentPromotion(Args[i]); 1139429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1140429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return true; 1141429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Args[i] = Result.take(); 114292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 11436660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar 1144f85e193739c953358c865005855253af4f68a497John McCall unsigned DiagID; 11454e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1146f85e193739c953358c865005855253af4f68a497John McCall DiagID = diag::err_arc_method_not_found; 1147f85e193739c953358c865005855253af4f68a497John McCall else 1148f85e193739c953358c865005855253af4f68a497John McCall DiagID = isClassMessage ? diag::warn_class_method_not_found 1149f85e193739c953358c865005855253af4f68a497John McCall : diag::warn_inst_method_not_found; 11504e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().DebuggerSupport) 1151819e74544a326b90d13aa73e6497b187c6545ff5John McCall Diag(lbrac, DiagID) 1152376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian << Sel << isClassMessage << SourceRange(SelectorLocs.front(), 1153376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian SelectorLocs.back()); 115448218c60d6b53b7880917d1366ee716dec2145caJohn McCall 115548218c60d6b53b7880917d1366ee716dec2145caJohn McCall // In debuggers, we want to use __unknown_anytype for these 115648218c60d6b53b7880917d1366ee716dec2145caJohn McCall // results so that clients can cast them. 11574e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DebuggerSupport) { 115848218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.UnknownAnyTy; 115948218c60d6b53b7880917d1366ee716dec2145caJohn McCall } else { 116048218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.getObjCIdType(); 116148218c60d6b53b7880917d1366ee716dec2145caJohn McCall } 1162f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = VK_RValue; 1163637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar return false; 1164637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar } 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1166926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType = getMessageSendResultType(ReceiverType, Method, isClassMessage, 1167926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor isSuperMessage); 1168f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = Expr::getValueKindForType(Method->getResultType()); 11691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 117091e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar unsigned NumNamedArgs = Sel.getNumArgs(); 11714f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // Method might have more arguments than selector indicates. This is due 11724f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // to addition of c-style arguments in method. 11734f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (Method->param_size() > Sel.getNumArgs()) 11744f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian NumNamedArgs = Method->param_size(); 11754f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // FIXME. This need be cleaned up. 11764f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (NumArgs < NumNamedArgs) { 1177f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Diag(lbrac, diag::err_typecheck_call_too_few_args) 1178f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall << 2 << NumNamedArgs << NumArgs; 11794f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian return false; 11804f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian } 118191e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 1182312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner bool IsError = false; 118391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar for (unsigned i = 0; i < NumNamedArgs; i++) { 118492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // We can't do any type-checking on a type-dependent argument. 118592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 118692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 118792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 118885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner Expr *argExpr = Args[i]; 118992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 11905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ParmVarDecl *param = Method->param_begin()[i]; 119185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner assert(argExpr && "CheckMessageArgumentTypes(): missing expression"); 11921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11935acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Strip the unbridged-cast placeholder expression off unless it's 11945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // a consumed argument. 11955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (argExpr->hasPlaceholderType(BuiltinType::ARCUnbridgedCast) && 11965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall !param->hasAttr<CFConsumedAttr>()) 11975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall argExpr = stripARCUnbridgedCast(argExpr); 11985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 1199688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (RequireCompleteType(argExpr->getSourceRange().getBegin(), 12005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param->getType(), 1201d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_call_incomplete_argument, argExpr)) 1202688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor return true; 1203688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor 1204745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 12055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param); 12063fa5cae9b3812cab9fab6c042c3329bb70a3d046John McCall ExprResult ArgE = PerformCopyInitialization(Entity, lbrac, Owned(argExpr)); 1207688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (ArgE.isInvalid()) 1208688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor IsError = true; 1209688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor else 1210688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor Args[i] = ArgE.takeAs<Expr>(); 121185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 121291e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 121391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Promote additional arguments to variadic methods. 121491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (Method->isVariadic()) { 121592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor for (unsigned i = NumNamedArgs; i < NumArgs; ++i) { 121692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 121792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 121892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1219d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose ExprResult Arg = DefaultVariadicArgumentPromotion(Args[i], VariadicMethod, 1220d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 1221429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley IsError |= Arg.isInvalid(); 1222429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Args[i] = Arg.take(); 122392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 122491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } else { 122591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Check for extra arguments to non-variadic methods. 122691e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (NumArgs != NumNamedArgs) { 12271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Args[NumNamedArgs]->getLocStart(), 1228fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner diag::err_typecheck_call_too_many_args) 1229ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << 2 /*method*/ << NumNamedArgs << NumArgs 1230ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << Method->getSourceRange() 1231fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << SourceRange(Args[NumNamedArgs]->getLocStart(), 1232fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner Args[NumArgs-1]->getLocEnd()); 123391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 123491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 123591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 12362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor DiagnoseSentinelCalls(Method, lbrac, Args, NumArgs); 123729c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 123829c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas // Do additional checkings on method. 123929c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas IsError |= CheckObjCMethodCall(Method, lbrac, Args, NumArgs); 124029c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 1241312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner return IsError; 124285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 124385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1244c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregorbool Sema::isSelfExpr(Expr *receiver) { 1245f2d74cc083e1a83838acf99d2e1ca260d1c54742Fariborz Jahanian // 'self' is objc 'self' in an objc method only. 12464b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMethodDecl *method = 12474b9c2d235fb9449e249d74f48ecfec601650de93John McCall dyn_cast<ObjCMethodDecl>(CurContext->getNonClosureAncestor()); 12484b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!method) return false; 12494b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1250f85e193739c953358c865005855253af4f68a497John McCall receiver = receiver->IgnoreParenLValueCasts(); 1251f85e193739c953358c865005855253af4f68a497John McCall if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(receiver)) 12524b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (DRE->getDecl() == method->getSelfDecl()) 1253c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return true; 1254c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return false; 12556b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff} 12566b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff 12573c3b7f90a863af43fa63043d396553ecf205351cJohn McCall/// LookupMethodInType - Look up a method in an ObjCObjectType. 12583c3b7f90a863af43fa63043d396553ecf205351cJohn McCallObjCMethodDecl *Sema::LookupMethodInObjectType(Selector sel, QualType type, 12593c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isInstance) { 12603c3b7f90a863af43fa63043d396553ecf205351cJohn McCall const ObjCObjectType *objType = type->castAs<ObjCObjectType>(); 12613c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCInterfaceDecl *iface = objType->getInterface()) { 12623c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Look it up in the main interface (and categories, etc.) 12633c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = iface->lookupMethod(sel, isInstance)) 12643c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 12653c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 12663c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Okay, look for "private" methods declared in any 12673c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // @implementations we've seen. 1268e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks if (ObjCMethodDecl *method = iface->lookupPrivateMethod(sel, isInstance)) 1269e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks return method; 12703c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 12713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 12723c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Check qualifiers. 12733c3b7f90a863af43fa63043d396553ecf205351cJohn McCall for (ObjCObjectType::qual_iterator 12743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall i = objType->qual_begin(), e = objType->qual_end(); i != e; ++i) 12753c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = (*i)->lookupMethod(sel, isInstance)) 12763c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 12773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 12783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return 0; 12793c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 12803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 128161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// LookupMethodInQualifiedType - Lookups up a method in protocol qualifier 128261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// list of a qualified objective pointer type. 128361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz JahanianObjCMethodDecl *Sema::LookupMethodInQualifiedType(Selector Sel, 128461478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian const ObjCObjectPointerType *OPT, 128561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian bool Instance) 128661478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian{ 128761478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian ObjCMethodDecl *MD = 0; 128861478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 128961478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian E = OPT->qual_end(); I != E; ++I) { 129061478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian ObjCProtocolDecl *PROTO = (*I); 129161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian if ((MD = PROTO->lookupMethod(Sel, Instance))) { 129261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return MD; 129361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 129461478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 129561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return 0; 129661478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian} 129761478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian 12989879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanianstatic void DiagnoseARCUseOfWeakReceiver(Sema &S, Expr *Receiver) { 12999879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (!Receiver) 1300289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian return; 1301289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 130231170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Receiver)) 130331170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian Receiver = OVE->getSourceExpr(); 130431170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian 13059879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian Expr *RExpr = Receiver->IgnoreParenImpCasts(); 13069879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian SourceLocation Loc = RExpr->getLocStart(); 13079879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian QualType T = RExpr->getType(); 13089879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian ObjCPropertyDecl *PDecl = 0; 13099879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian ObjCMethodDecl *GDecl = 0; 13109879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PseudoObjectExpr *POE = dyn_cast<PseudoObjectExpr>(RExpr)) { 13119879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian RExpr = POE->getSyntacticForm(); 13129879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (ObjCPropertyRefExpr *PRE = dyn_cast<ObjCPropertyRefExpr>(RExpr)) { 13139879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PRE->isImplicitProperty()) { 13149879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian GDecl = PRE->getImplicitPropertyGetter(); 13159879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (GDecl) { 13169879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian T = GDecl->getResultType(); 13179879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13189879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13199879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian else { 13209879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian PDecl = PRE->getExplicitProperty(); 13219879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl) { 13229879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian T = PDecl->getType(); 13239879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13249879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 1325289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian } 13269879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 132731170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian else if (ObjCMessageExpr *ME = dyn_cast<ObjCMessageExpr>(RExpr)) { 132831170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian // See if receiver is a method which envokes a synthesized getter 132931170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian // backing a 'weak' property. 133031170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian ObjCMethodDecl *Method = ME->getMethodDecl(); 133131170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian if (Method && Method->isSynthesized()) { 133231170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian Selector Sel = Method->getSelector(); 13330239df868e2e09f4963bc310c56ea129f51a2288Jordan Rose if (Sel.getNumArgs() == 0) { 13340239df868e2e09f4963bc310c56ea129f51a2288Jordan Rose const DeclContext *Container = Method->getDeclContext(); 133531170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian PDecl = 13360239df868e2e09f4963bc310c56ea129f51a2288Jordan Rose S.LookupPropertyDecl(cast<ObjCContainerDecl>(Container), 133731170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian Sel.getIdentifierInfoForSlot(0)); 13380239df868e2e09f4963bc310c56ea129f51a2288Jordan Rose } 133931170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian if (PDecl) 134031170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian T = PDecl->getType(); 134131170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian } 134231170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian } 13439879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian 13449879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (T.getObjCLifetime() == Qualifiers::OCL_Weak) { 13459879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(Loc, diag::warn_receiver_is_weak) 13469879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian << ((!PDecl && !GDecl) ? 0 : (PDecl ? 1 : 2)); 13479879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl) 13489879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(PDecl->getLocation(), diag::note_property_declare); 13499879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian else if (GDecl) 13509879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(GDecl->getLocation(), diag::note_method_declared_at) << GDecl; 1351289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian return; 1352289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian } 1353289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 13549879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl && 13559879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_weak)) { 13569879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(Loc, diag::warn_receiver_is_weak) << 1; 13579879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(PDecl->getLocation(), diag::note_property_declare); 13589879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 1359289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian} 1360289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 13617f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// HandleExprPropertyRefExpr - Handle foo.bar where foo is a pointer to an 13627f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// objective C interface. This is a property reference expression. 136360d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 13647f81652f97a69ae8b514893a69c0245253687e55Chris LattnerHandleExprPropertyRefExpr(const ObjCObjectPointerType *OPT, 13656326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Expr *BaseExpr, SourceLocation OpLoc, 13666326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian DeclarationName MemberName, 13678ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation MemberLoc, 13688ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation SuperLoc, QualType SuperType, 13698ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian bool Super) { 13707f81652f97a69ae8b514893a69c0245253687e55Chris Lattner const ObjCInterfaceType *IFaceT = OPT->getInterfaceType(); 13717f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCInterfaceDecl *IFace = IFaceT->getDecl(); 1372c470442fe144b93c2877134559d0067b3215289dBenjamin Kramer 1373c1aa40cdc8f42c3a5505ebb54aa54f3e5086b7efBenjamin Kramer if (!MemberName.isIdentifier()) { 1374109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor Diag(MemberLoc, diag::err_invalid_property_name) 1375109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor << MemberName << QualType(OPT, 0); 1376109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor return ExprError(); 1377109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor } 1378c1aa40cdc8f42c3a5505ebb54aa54f3e5086b7efBenjamin Kramer 1379c1aa40cdc8f42c3a5505ebb54aa54f3e5086b7efBenjamin Kramer IdentifierInfo *Member = MemberName.getAsIdentifierInfo(); 1380109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor 1381b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange BaseRange = Super? SourceRange(SuperLoc) 1382b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : BaseExpr->getSourceRange(); 1383b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OPT->getPointeeType(), 1384d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_property_not_found_forward_class, 1385d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor MemberName, BaseRange)) 13868b1aba495744bea7093899a65f08c3987263061cFariborz Jahanian return ExprError(); 1387b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 13887f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Search for a declared property first. 1389b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian if (ObjCPropertyDecl *PD = IFace->FindPropertyDeclaration(Member)) { 13907f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 13917f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 13927f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 13938ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 13943c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, 1395f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, OK_ObjCProperty, 13968ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, 13978ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType)); 13988ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 13993c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, 1400f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, OK_ObjCProperty, 14018ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, BaseExpr)); 14027f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14037f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check protocols on qualified interfaces. 14047f81652f97a69ae8b514893a69c0245253687e55Chris Lattner for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 14057f81652f97a69ae8b514893a69c0245253687e55Chris Lattner E = OPT->qual_end(); I != E; ++I) 14067f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (ObjCPropertyDecl *PD = (*I)->FindPropertyDeclaration(Member)) { 14077f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 14087f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 14097f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 1410289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 14118ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 14123c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, 14133c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 1414f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, 1415f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OK_ObjCProperty, 1416f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall MemberLoc, 1417f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SuperLoc, SuperType)); 14188ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 14193c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, 14203c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 1421f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, 1422f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OK_ObjCProperty, 14238ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, 14248ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian BaseExpr)); 14257f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14267f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If that failed, look for an "implicit" property by seeing if the nullary 14277f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // selector is implemented. 14287f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14297f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // FIXME: The logic for looking up nullary and unary selectors should be 14307f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // shared with the code in ActOnInstanceMessage. 14317f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14327f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector Sel = PP.getSelectorTable().getNullarySelector(Member); 14337f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Getter = IFace->lookupInstanceMethod(Sel); 143427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 143527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 143627569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Getter) 143727569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Getter = LookupMethodInQualifiedType(Sel, OPT, true); 14387f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14397f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, check for 'private' methods. 14407f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Getter) 144174b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Getter = IFace->lookupPrivateMethod(Sel); 14427f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14437f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Getter) { 14447f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check if we can reference this property. 14457f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(Getter, MemberLoc)) 14467f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14477f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14487f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If we found a getter then this may be a valid dot-reference, we 14497f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // will look for the matching setter, in case it is needed. 14507f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector SetterSel = 14517f81652f97a69ae8b514893a69c0245253687e55Chris Lattner SelectorTable::constructSetterName(PP.getIdentifierTable(), 14527f81652f97a69ae8b514893a69c0245253687e55Chris Lattner PP.getSelectorTable(), Member); 14537f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Setter = IFace->lookupInstanceMethod(SetterSel); 1454b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian 145527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 145627569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Setter) 145727569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Setter = LookupMethodInQualifiedType(SetterSel, OPT, true); 145827569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 14597f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Setter) { 14607f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, also check for 'private' 14617f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // methods. 146274b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Setter = IFace->lookupPrivateMethod(SetterSel); 14637f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 146427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 14657f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Setter && DiagnoseUseOfDecl(Setter, MemberLoc)) 14667f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14677f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 146899130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Getter || Setter) { 14698ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 147012f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 14713c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 14723c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 147312f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall MemberLoc, 147412f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall SuperLoc, SuperType)); 14758ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 147612f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 14773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 14783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 147912f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall MemberLoc, BaseExpr)); 14808ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian 14817f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14827f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14837f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Attempt to correct for typos in property names. 14842f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain DeclFilterCCC<ObjCPropertyDecl> Validator; 14852f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (TypoCorrection Corrected = CorrectTypo( 1486d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationNameInfo(MemberName, MemberLoc), LookupOrdinaryName, NULL, 148716e46dd0c284296cea819dfbf67942ecef02894dKaelyn Uhrain NULL, Validator, IFace, false, OPT)) { 14882f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCPropertyDecl *Property = 14892f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Corrected.getCorrectionDeclAs<ObjCPropertyDecl>(); 1490d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationName TypoResult = Corrected.getCorrection(); 14917f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found_suggest) 1492b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner << MemberName << QualType(OPT, 0) << TypoResult 1493b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner << FixItHint::CreateReplacement(MemberLoc, TypoResult.getAsString()); 14947f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Property->getLocation(), diag::note_previous_decl) 14957f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << Property->getDeclName(); 14966326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return HandleExprPropertyRefExpr(OPT, BaseExpr, OpLoc, 14976326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian TypoResult, MemberLoc, 14988ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType, Super); 14997f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 150041aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared; 150141aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (ObjCIvarDecl *Ivar = 150241aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian IFace->lookupInstanceVariable(Member, ClassDeclared)) { 150341aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian QualType T = Ivar->getType(); 150441aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (const ObjCObjectPointerType * OBJPT = 150541aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian T->getAsObjCInterfacePointerType()) { 1506b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OBJPT->getPointeeType(), 1507d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_property_not_as_forward_class, 1508d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor MemberName, BaseExpr)) 1509b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 151041aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 15116326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Diag(MemberLoc, 15126326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian diag::err_ivar_access_using_property_syntax_suggest) 15136326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << MemberName << QualType(OPT, 0) << Ivar->getDeclName() 15146326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << FixItHint::CreateReplacement(OpLoc, "->"); 15156326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return ExprError(); 151641aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 1517b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner 15187f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found) 15197f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << MemberName << QualType(OPT, 0); 152099130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Setter) 15217f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Setter->getLocation(), diag::note_getter_unavailable) 152299130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian << MemberName << BaseExpr->getSourceRange(); 15237f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 15247f81652f97a69ae8b514893a69c0245253687e55Chris Lattner} 15257f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 15267f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 15277f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 152860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 1529eb483eb3ee80300f15d6d13573d82493c2194461Chris LattnerActOnClassPropertyRefExpr(IdentifierInfo &receiverName, 1530eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IdentifierInfo &propertyName, 1531eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation receiverNameLoc, 1532eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation propertyNameLoc) { 15331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1534f06cdae9c68dfc4191fbf6b9e5ea0fd748488d88Douglas Gregor IdentifierInfo *receiverNamePtr = &receiverName; 1535c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor ObjCInterfaceDecl *IFace = getObjCInterfaceDecl(receiverNamePtr, 1536c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor receiverNameLoc); 1537926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1538926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool IsSuper = false; 1539eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (IFace == 0) { 1540eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // If the "receiver" is 'super' in a method, handle it as an expression-like 1541eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // property reference. 154226743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (receiverNamePtr->isStr("super")) { 1543926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor IsSuper = true; 1544926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1545b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman if (ObjCMethodDecl *CurMethod = tryCaptureObjCSelf(receiverNameLoc)) { 1546eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (CurMethod->isInstanceMethod()) { 1547eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner QualType T = 1548eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner Context.getObjCInterfaceType(CurMethod->getClassInterface()); 1549eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner T = Context.getObjCObjectPointerType(T); 1550eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1551eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return HandleExprPropertyRefExpr(T->getAsObjCInterfacePointerType(), 15526326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian /*BaseExpr*/0, 15536326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian SourceLocation()/*OpLoc*/, 15546326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian &propertyName, 15558ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian propertyNameLoc, 15568ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian receiverNameLoc, T, true); 1557eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 1558eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1559eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Otherwise, if this is a class method, try dispatching to our 1560eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // superclass. 1561eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IFace = CurMethod->getClassInterface()->getSuperClass(); 1562eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 156326743b20e4a8c2a986e6453f0c38beba0afef633John McCall } 1564eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1565eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (IFace == 0) { 1566eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner Diag(receiverNameLoc, diag::err_expected_ident_or_lparen); 1567eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return ExprError(); 1568eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 15698149a5786def747af783a9e3c22714bb7ab42b9cFariborz Jahanian } 15701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1571eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Search for a declared property first. 157261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff Selector Sel = PP.getSelectorTable().getNullarySelector(&propertyName); 157317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Getter = IFace->lookupClassMethod(Sel); 157461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 157561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, check for 'private' methods. 157661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Getter) 157761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) 157861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) 157987018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 158017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Getter = ImpDecl->getClassMethod(Sel); 158161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 158261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter) { 158361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // FIXME: refactor/share with ActOnMemberReference(). 158461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Check if we can reference this property. 158561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (DiagnoseUseOfDecl(Getter, propertyNameLoc)) 158661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 158761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 15881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 158961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look for the matching setter, in case it is needed. 15901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Selector SetterSel = 15911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SelectorTable::constructSetterName(PP.getIdentifierTable(), 1592fdc92b7877535e6264fe43cfbdc8f01e9b224f81Steve Naroff PP.getSelectorTable(), &propertyName); 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Setter = IFace->lookupClassMethod(SetterSel); 159561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Setter) { 159661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, also check for 'private' 159761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // methods. 159861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) 159961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) 160087018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 160117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Setter = ImpDecl->getClassMethod(SetterSel); 160261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 160361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look through local category implementations associated with the class. 16041cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Setter) 16051cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Setter = IFace->getCategoryClassMethod(SetterSel); 160661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 160761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Setter && DiagnoseUseOfDecl(Setter, propertyNameLoc)) 160861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 160961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 161061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter || Setter) { 1611926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (IsSuper) 1612926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 16133c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 16143c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 1615926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor propertyNameLoc, 1616926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor receiverNameLoc, 1617926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(IFace))); 1618926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 161912f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 16203c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 16213c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 162212f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall propertyNameLoc, 162312f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall receiverNameLoc, IFace)); 162461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 162561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(Diag(propertyNameLoc, diag::err_property_not_found) 162661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff << &propertyName << Context.getObjCInterfaceType(IFace)); 162761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff} 162861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 16292f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainnamespace { 16302f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16312f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainclass ObjCInterfaceOrSuperCCC : public CorrectionCandidateCallback { 16322f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain public: 16332f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC(ObjCMethodDecl *Method) { 16342f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // Determine whether "super" is acceptable in the current context. 16352f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Method && Method->getClassInterface()) 16362f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain WantObjCSuper = Method->getClassInterface()->getSuperClass(); 16372f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 16382f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16392f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain virtual bool ValidateCandidate(const TypoCorrection &candidate) { 16402f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return candidate.getCorrectionDeclAs<ObjCInterfaceDecl>() || 16412f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain candidate.isKeyword("super"); 16422f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 16432f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain}; 16442f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16452f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain} 16462f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 164747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas GregorSema::ObjCMessageKind Sema::getObjCMessageKind(Scope *S, 16481569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor IdentifierInfo *Name, 164947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor SourceLocation NameLoc, 165047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor bool IsSuper, 16511569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor bool HasTrailingDot, 1652b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &ReceiverType) { 1653b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = ParsedType(); 16541569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 165547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // If the identifier is "super" and there is no trailing dot, we're 165695f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // messaging super. If the identifier is "super" and there is a 165795f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // trailing dot, it's an instance message. 165895f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor if (IsSuper && S->isInObjcMethodScope()) 165995f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor return HasTrailingDot? ObjCInstanceMessage : ObjCSuperMessage; 166047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 166147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupResult Result(*this, Name, NameLoc, LookupOrdinaryName); 166247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupName(Result, S); 166347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 166447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor switch (Result.getResultKind()) { 166547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFound: 1666ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Normal name lookup didn't find anything. If we're in an 1667ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Objective-C method, look for ivars. If we find one, we're done! 166895f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // FIXME: This is a hack. Ivar lookup should be part of normal 166995f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // lookup. 1670ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (ObjCMethodDecl *Method = getCurMethodDecl()) { 1671ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis if (!Method->getClassInterface()) { 1672ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis // Fall back: let the parser try to parse it as an instance message. 1673ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis return ObjCInstanceMessage; 1674ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis } 1675ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis 1676ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ObjCInterfaceDecl *ClassDeclared; 1677ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (Method->getClassInterface()->lookupInstanceVariable(Name, 1678ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ClassDeclared)) 1679ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor return ObjCInstanceMessage; 1680ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor } 168195f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor 168247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Break out; we'll perform typo correction below. 168347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor break; 168447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 168547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFoundInCurrentInstantiation: 168647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundOverloaded: 168747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundUnresolvedValue: 168847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Ambiguous: 168947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Result.suppressDiagnostics(); 169047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 169147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 169247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Found: { 16938348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // If the identifier is a class or not, and there is a trailing dot, 16948348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // it's an instance message. 16958348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian if (HasTrailingDot) 16968348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian return ObjCInstanceMessage; 169747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // We found something. If it's a type, then we have a class 169847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // message. Otherwise, it's an instance message. 169947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor NamedDecl *ND = Result.getFoundDecl(); 17001569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor QualType T; 17011569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(ND)) 17021569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getObjCInterfaceType(Class); 17031569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor else if (TypeDecl *Type = dyn_cast<TypeDecl>(ND)) 17041569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getTypeDeclType(Type); 17051569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor else 17061569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCInstanceMessage; 17071569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 17081569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // We have a class message, and T is the type we're 17091569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // messaging. Build source-location information for it. 17101569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 1711b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = CreateParsedType(T, TSInfo); 17121569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCClassMessage; 171347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 171447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 171547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 17162f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC Validator(getCurMethodDecl()); 1717d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor if (TypoCorrection Corrected = CorrectTypo(Result.getLookupNameInfo(), 1718d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor Result.getLookupKind(), S, NULL, 171916e46dd0c284296cea819dfbf67942ecef02894dKaelyn Uhrain Validator)) { 17202f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Corrected.isKeyword()) { 17212f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we've found the keyword "super" (the only keyword that would be 17222f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // returned by CorrectTypo), this is a send to super. 172347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Diag(NameLoc, diag::err_unknown_receiver_suggest) 1724d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor << Name << Corrected.getCorrection() 1725aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor << FixItHint::CreateReplacement(SourceRange(NameLoc), "super"); 1726aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor return ObjCSuperMessage; 17272f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } else if (ObjCInterfaceDecl *Class = 17282f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Corrected.getCorrectionDeclAs<ObjCInterfaceDecl>()) { 17292f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we found a declaration, correct when it refers to an Objective-C 17302f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // class. 17312f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Diag(NameLoc, diag::err_unknown_receiver_suggest) 17322f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << Name << Corrected.getCorrection() 17332f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << FixItHint::CreateReplacement(SourceRange(NameLoc), 17342f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Class->getNameAsString()); 17352f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Diag(Class->getLocation(), diag::note_previous_decl) 17362f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << Corrected.getCorrection(); 17372f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 17382f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain QualType T = Context.getObjCInterfaceType(Class); 17392f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 17402f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ReceiverType = CreateParsedType(T, TSInfo); 17412f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return ObjCClassMessage; 174247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 174347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 174447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 174547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Fall back: let the parser try to parse it as an instance message. 174647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 174747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor} 174861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 174960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnSuperMessage(Scope *S, 17500fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 17510fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 17520fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1753951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 17540fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 17550fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor MultiExprArg Args) { 17562725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Determine whether we are inside a method or not. 1757b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman ObjCMethodDecl *Method = tryCaptureObjCSelf(SuperLoc); 1758f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Method) { 1759f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::err_invalid_receiver_to_message_super); 1760f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return ExprError(); 1761f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor } 17622725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1763f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Class = Method->getClassInterface(); 1764f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Class) { 1765f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::error_no_super_class_message) 1766f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor << Method->getDeclName(); 17672725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 176815faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner } 17692725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1770f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Super = Class->getSuperClass(); 17712725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Super) { 1772f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // The current class does not have a superclass. 1773e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek Diag(SuperLoc, diag::error_root_class_cannot_use_super) 1774e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek << Class->getIdentifier(); 17752725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 17762725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 17772725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1778f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // We are in a method whose class has a superclass, so 'super' 1779f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // is acting as a keyword. 1780f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (Method->isInstanceMethod()) { 17819a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber if (Sel.getMethodFamily() == OMF_dealloc) 178295aac15936e8362aeb4813f95bc255dee6473592Eli Friedman getCurFunction()->ObjCShouldCallSuperDealloc = false; 1783841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian else if (const ObjCMethodDecl *IMD = 1784841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian Class->lookupMethod(Method->getSelector(), 1785841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian Method->isInstanceMethod())) 1786841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian // Must check for name of message since the method could 1787841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian // be another method with objc_requires_super attribute set. 1788841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian if (IMD->hasAttr<ObjCRequiresSuperAttr>() && 1789841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian Sel == IMD->getSelector()) 1790841011373b345cf79d0da4b7242dcf2869a43502Fariborz Jahanian getCurFunction()->ObjCShouldCallSuperDealloc = false; 179180cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber if (Sel.getMethodFamily() == OMF_finalize) 179295aac15936e8362aeb4813f95bc255dee6473592Eli Friedman getCurFunction()->ObjCShouldCallSuperFinalize = false; 17939a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber 1794f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in an instance method, this is an instance 1795f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // message to the superclass instance. 1796f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor QualType SuperTy = Context.getObjCInterfaceType(Super); 1797f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor SuperTy = Context.getObjCObjectPointerType(SuperTy); 17989ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(0, SuperTy, SuperLoc, 1799f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Sel, /*Method=*/0, 18003fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer LBracLoc, SelectorLocs, RBracLoc, Args); 18012725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 1802f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor 1803f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in a class method, this is a class message to 1804f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // the superclass. 1805f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return BuildClassMessage(/*ReceiverTypeInfo=*/0, 1806f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Context.getObjCInterfaceType(Super), 1807f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SuperLoc, Sel, /*Method=*/0, 18083fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer LBracLoc, SelectorLocs, RBracLoc, Args); 18092725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 18102725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1811746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1812746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildClassMessageImplicit(QualType ReceiverType, 1813746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isSuperReceiver, 1814746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 1815746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 1816746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 1817746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 1818746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis TypeSourceInfo *receiverTypeInfo = 0; 1819746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis if (!ReceiverType.isNull()) 1820746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis receiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType); 1821746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1822746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildClassMessage(receiverTypeInfo, ReceiverType, 1823746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/isSuperReceiver ? Loc : SourceLocation(), 1824746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 1825746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 1826746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1827746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 1828746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1829ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void applyCocoaAPICheck(Sema &S, const ObjCMessageExpr *Msg, 1830ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned DiagID, 1831ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool (*refactor)(const ObjCMessageExpr *, 1832ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const NSAPI &, edit::Commit &)) { 1833ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation MsgLoc = Msg->getExprLoc(); 1834ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.Diags.getDiagnosticLevel(DiagID, MsgLoc) == DiagnosticsEngine::Ignored) 1835ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 1836ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1837ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceManager &SM = S.SourceMgr; 1838ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::Commit ECommit(SM, S.LangOpts); 1839ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (refactor(Msg,*S.NSAPIObj, ECommit)) { 1840ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DiagnosticBuilder Builder = S.Diag(MsgLoc, DiagID) 1841ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Msg->getSelector() << Msg->getSourceRange(); 1842ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // FIXME: Don't emit diagnostic at all if fixits are non-commitable. 1843ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ECommit.isCommitable()) 1844ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 1845ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (edit::Commit::edit_iterator 1846ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek I = ECommit.edit_begin(), E = ECommit.edit_end(); I != E; ++I) { 1847ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const edit::Commit::Edit &Edit = *I; 1848ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Edit.Kind) { 1849ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Insert: 1850ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateInsertion(Edit.OrigLoc, 1851ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.Text, 1852ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 1853ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1854ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_InsertFromRange: 1855ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint( 1856ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek FixItHint::CreateInsertionFromRange(Edit.OrigLoc, 1857ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.getInsertFromRange(SM), 1858ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 1859ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1860ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Remove: 1861ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateRemoval(Edit.getFileRange(SM))); 1862ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1863ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1864ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1865ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1866ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1867ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1868ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void checkCocoaAPI(Sema &S, const ObjCMessageExpr *Msg) { 1869ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek applyCocoaAPICheck(S, Msg, diag::warn_objc_redundant_literal_use, 1870ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::rewriteObjCRedundantCallWithLiteral); 1871ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1872ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 18732725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C class message expression. 18742725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18752725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal class messages and 18762725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// class messages to the superclass. 18772725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18782725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverTypeInfo Type source information that describes the 18792725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receiver of this message. This may be NULL, in which case we are 18802725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass and \p SuperLoc must be a valid source 18812725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// location. 18822725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 18832725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The type of the object receiving the 18842725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When \p ReceiverTypeInfo is non-NULL, this is the same 18852725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// type as that refers to. For a superclass send, this is the type of 18862725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// the superclass. 18872725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18882725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 18892725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass message. 18902725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18912725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 18922725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 1893f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this class message is invoking, if 1894f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 1895f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 18962725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 18972725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 1898efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param RBracLoc The location of the closing square bracket ']'. 18992725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 1900efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param ArgsIn The message arguments. 190160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildClassMessage(TypeSourceInfo *ReceiverTypeInfo, 19020fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor QualType ReceiverType, 19030fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 19040fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 19050fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor ObjCMethodDecl *Method, 19060fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1907951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 19080fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 1909746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 1910746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 19110fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc 19129497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange().getBegin(); 19130fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 19140fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 19150fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 19160fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 19170fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 19180fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 191992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (ReceiverType->isDependentType()) { 192092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver type is dependent, we can't type-check anything 192192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 192292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 19235354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 192492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 1925f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return Owned(ObjCMessageExpr::Create(Context, ReceiverType, 1926f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, LBracLoc, ReceiverTypeInfo, 1927951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Sel, SelectorLocs, /*Method=*/0, 1928746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs),RBracLoc, 1929746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit)); 193092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 193115faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner 19322725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the class to which we are sending this message. 19332725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ObjCInterfaceDecl *Class = 0; 1934c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *ClassType = ReceiverType->getAs<ObjCObjectType>(); 1935c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ClassType || !(Class = ClassType->getInterface())) { 19362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Diag(Loc, diag::err_invalid_receiver_class_message) 19372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor << ReceiverType; 19382725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19397c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff } 19402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor assert(Class && "We don't know which class we're messaging?"); 194143bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian // objc++ diagnoses during typename annotation. 19424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) 194343bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian (void)DiagnoseUseOfDecl(Class, Loc); 19442725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the method we are messaging. 1945f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 1946b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange TypeRange 1947b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor = SuperLoc.isValid()? SourceRange(SuperLoc) 1948b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange(); 1949d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, Context.getObjCInterfaceType(Class), 19504e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().ObjCAutoRefCount 1951d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor ? diag::err_arc_receiver_forward_class 1952d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : diag::warn_receiver_forward_class), 1953d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor TypeRange)) { 1954f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // A forward class used in messaging is treated as a 'Class' 1955f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 1956f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor SourceRange(LBracLoc, RBracLoc)); 19574e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Method && !getLangOpts().ObjCAutoRefCount) 1958f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Method->getLocation(), diag::note_method_sent_forward_class) 1959f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Method->getDeclName(); 1960f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 1961f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 1962f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = Class->lookupClassMethod(Sel); 19631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1964f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have an implementation in scope, check "private" methods. 1965f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 1966e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks Method = Class->lookupPrivateClassMethod(Sel); 19677c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff 1968f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (Method && DiagnoseUseOfDecl(Method, Loc)) 1969f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 1970f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 19711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19722725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the argument types and determine the result type. 19732725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 1974f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 1975f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 19762725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 19775354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 1978376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian if (CheckMessageArgumentTypes(ReceiverType, Args, NumArgs, Sel, SelectorLocs, 1979376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian Method, true, 1980926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor SuperLoc.isValid(), LBracLoc, RBracLoc, 1981926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType, VK)) 19822725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19834df728e368fa1f65ffc57572fed613dcca5b4fe8Ted Kremenek 1984483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor if (Method && !Method->getResultType()->isVoidType() && 1985483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor RequireCompleteType(LBracLoc, Method->getResultType(), 1986483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 1987483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 1988483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor 19892725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr. 1990ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMessageExpr *Result; 19912725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 1992f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 19932d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/false, 1994951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, 19958d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 1996746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 1997ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 1998f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 1999951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverTypeInfo, Sel, SelectorLocs, 20008d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 2001746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 2002ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2003ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2004ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 20052d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 200685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 200785a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 20082725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnClassMessage - used for both unary and keyword messages. 200985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// ArgExprs is optional - if it is present, the number of expressions 201085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// is obtained from Sel.getNumArgs(). 201160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnClassMessage(Scope *S, 201277328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor ParsedType Receiver, 201377328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor Selector Sel, 201477328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation LBracLoc, 2015951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 201677328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation RBracLoc, 201777328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor MultiExprArg Args) { 20182725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor TypeSourceInfo *ReceiverTypeInfo; 20192725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReceiverType = GetTypeFromParser(Receiver, &ReceiverTypeInfo); 20202725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (ReceiverType.isNull()) 20212725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 20221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20242725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!ReceiverTypeInfo) 20252725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType, LBracLoc); 20261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20272725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return BuildClassMessage(ReceiverTypeInfo, ReceiverType, 2028f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor /*SuperLoc=*/SourceLocation(), Sel, /*Method=*/0, 20293fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer LBracLoc, SelectorLocs, RBracLoc, Args); 20302725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 203187d3ef08d892df8264bd51adb6ddd4a22422cd29Steve Naroff 2032746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildInstanceMessageImplicit(Expr *Receiver, 2033746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis QualType ReceiverType, 2034746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 2035746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 2036746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 2037746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 2038746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildInstanceMessage(Receiver, ReceiverType, 2039746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/!Receiver ? Loc : SourceLocation(), 2040746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 2041746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 2042746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 2043746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 20442725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C instance message expression. 20452725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20462725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal instance messages and 20472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// instance messages to the superclass instance. 20482725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20492725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Receiver The expression that computes the object that will 20502725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receive this message. This may be empty, in which case we are 20512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass instance and \p SuperLoc must be a valid 20522725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// source location. 20532725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The (static) type of the object receiving the 20552725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When a \p Receiver expression is provided, this is the 20562725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// same type as that expression. For a superclass instance send, this 20572725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// is a pointer to the type of the superclass. 20582725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20592725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 20602725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass instance message. 20612725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20622725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 20632725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2064f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this instance message is invoking, if 2065f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 2066f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 20672725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 20682725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2069efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param RBracLoc The location of the closing square bracket ']'. 20702725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2071efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param ArgsIn The message arguments. 207260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildInstanceMessage(Expr *Receiver, 2073f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis QualType ReceiverType, 2074f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation SuperLoc, 2075f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Selector Sel, 2076f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis ObjCMethodDecl *Method, 2077f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation LBracLoc, 2078951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 2079f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation RBracLoc, 2080746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 2081746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 20820fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor // The location of the receiver. 20830fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc : Receiver->getLocStart(); 20840fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 20850fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 20860fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 20870fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 20880fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 20890fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 20900fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 20912725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If we have a receiver expression, perform appropriate promotions 20922725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // and determine receiver type. 20932725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (Receiver) { 20945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (Receiver->hasPlaceholderType()) { 2095f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor ExprResult Result; 2096f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Receiver->getType() == Context.UnknownAnyTy) 2097f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = forceUnknownAnyToType(Receiver, Context.getObjCIdType()); 2098f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor else 2099f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = CheckPlaceholderExpr(Receiver); 2100f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Result.isInvalid()) return ExprError(); 2101f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Receiver = Result.take(); 21025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 21035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 210492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Receiver->isTypeDependent()) { 210592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver is type-dependent, we can't type-check anything 210692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 210792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 21085354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 210992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 211092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor return Owned(ObjCMessageExpr::Create(Context, Context.DependentTy, 2111f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, LBracLoc, Receiver, Sel, 2112951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SelectorLocs, /*Method=*/0, 21138d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis makeArrayRef(Args, NumArgs), 2114746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit)); 211592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 211692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 21172725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If necessary, apply function/array conversion to the receiver. 21182725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // C99 6.7.5.3p[7,8]. 2119429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultFunctionArrayLvalueConversion(Receiver); 2120429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 2121429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 2122429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = Result.take(); 21232725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverType = Receiver->getType(); 21242725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 212504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2126f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2127f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to id. 2128ba551983016ee3eac5421255d2ebe6723e61befbFariborz Jahanian bool receiverIsId = ReceiverType->isObjCIdType(); 21296b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian if (receiverIsId || ReceiverType->isBlockPointerType() || 2130f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor (Receiver && Context.isObjCNSObjectType(Receiver->getType()))) { 2131f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 21326b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 21336b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2134f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 21352725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 2136d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceRange(LBracLoc,RBracLoc), 21376b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2138f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (ReceiverType->isObjCClassType() || 2139f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType->isObjCQualifiedClassType()) { 2140f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to Class. 2141759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // We allow sending a message to a qualified Class ("Class<foo>"), which 2142759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // is ok as long as one of the protocols implements the selector (if not, warn). 2143759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCObjectPointerType *QClassTy 2144759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian = ReceiverType->getAsObjCQualifiedClassType()) { 2145759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // Search protocols for class methods. 2146759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, false); 2147759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2148759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, true); 2149759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // warn if instance method found for a Class message. 2150759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) { 2151759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Diag(Loc, diag::warn_instance_method_on_class_found) 2152759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Method->getSelector() << Sel; 21533306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(Method->getLocation(), diag::note_method_declared_at) 21543306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << Method->getDeclName(); 2155759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 21566b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff } 2157759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } else { 2158759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) { 2159759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) { 2160759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // First check the public methods in the class interface. 2161759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = ClassDecl->lookupClassMethod(Sel); 2162759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian 2163759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) 2164e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks Method = ClassDecl->lookupPrivateClassMethod(Sel); 2165759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2166759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc)) 2167759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian return ExprError(); 2168759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2169759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2170759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If not messaging 'self', look for any factory method named 'Sel'. 2171c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Receiver || !isSelfExpr(Receiver)) { 2172759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 2173759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2174759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2175759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2176759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If no class (factory) method was found, check if an _instance_ 2177759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // method of the same name exists in the root class only. 2178759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupInstanceMethodInGlobalPool(Sel, 21796b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2180759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2181759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) 2182759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCInterfaceDecl *ID = 2183759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext())) { 2184759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ID->getSuperClass()) 2185759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Diag(Loc, diag::warn_root_inst_method_not_found) 2186759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Sel << SourceRange(LBracLoc, RBracLoc); 2187759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2188759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 218904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 219004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 219104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 219204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } else { 2193f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ObjCInterfaceDecl* ClassDecl = 0; 2194f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 2195f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a qualified ID ("id<foo>"), which is ok as 2196f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // long as one of the protocols implements the selector (if not, warn). 219733e6c2da2f72720ee6a34c6acd2a3e5ad37feca9Fariborz Jahanian // And as long as message is not deprecated/unavailable (warn if it is). 2198f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (const ObjCObjectPointerType *QIdTy 2199f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCQualifiedIdType()) { 2200f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocols for instance methods. 220127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, true); 220227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 220327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, false); 220433e6c2da2f72720ee6a34c6acd2a3e5ad37feca9Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc)) 220533e6c2da2f72720ee6a34c6acd2a3e5ad37feca9Fariborz Jahanian return ExprError(); 2206f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (const ObjCObjectPointerType *OCIType 2207f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCInterfacePointerType()) { 2208f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a pointer to an interface (an object). 2209f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ClassDecl = OCIType->getInterfaceDecl(); 2210f85e193739c953358c865005855253af4f68a497John McCall 2211b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // Try to complete the type. Under ARC, this is a hard error from which 2212b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // we don't try to recover. 2213b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor const ObjCInterfaceDecl *forwardClass = 0; 2214b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(Loc, OCIType->getPointeeType(), 22154e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().ObjCAutoRefCount 2216d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor ? diag::err_arc_receiver_forward_instance 2217d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : diag::warn_receiver_forward_instance, 2218d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Receiver? Receiver->getSourceRange() 2219d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : SourceRange(SuperLoc))) { 22204e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 2221b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 2222b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 2223b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor forwardClass = OCIType->getInterfaceDecl(); 22244cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian Diag(Receiver ? Receiver->getLocStart() 22254cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian : SuperLoc, diag::note_receiver_is_id); 22262e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = 0; 22272e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor } else { 22282e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = ClassDecl->lookupInstanceMethod(Sel); 2229f85e193739c953358c865005855253af4f68a497John McCall } 2230f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 223127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 2232f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocol qualifiers. 223327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, OCIType, true); 223427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 2235f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2236f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have implementations in scope, check "private" methods. 2237e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks Method = ClassDecl->lookupPrivateMethod(Sel); 2238f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 22394e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && getLangOpts().ObjCAutoRefCount) { 2240f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_arc_may_not_respond) 2241f85e193739c953358c865005855253af4f68a497John McCall << OCIType->getPointeeType() << Sel; 2242f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 2243f85e193739c953358c865005855253af4f68a497John McCall } 2244f85e193739c953358c865005855253af4f68a497John McCall 2245c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Method && (!Receiver || !isSelfExpr(Receiver))) { 2246f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we still haven't found a method, look in the global pool. This 2247f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // behavior isn't very desirable, however we need it for GCC 2248f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // compatibility. FIXME: should we deviate?? 2249f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (OCIType->qual_empty()) { 2250f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 2251d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceRange(LBracLoc, RBracLoc)); 22528e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && !forwardClass) 2253f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Loc, diag::warn_maynot_respond) 2254f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << OCIType->getInterfaceDecl()->getIdentifier() << Sel; 2255f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2256f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2257f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 22588e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc, forwardClass)) 2259f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 22604e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie } else if (!getLangOpts().ObjCAutoRefCount && 2261f85e193739c953358c865005855253af4f68a497John McCall !Context.getObjCIdType().isNull() && 2262f60946222721d9ba3c059563935c17b84703187aDouglas Gregor (ReceiverType->isPointerType() || 2263f60946222721d9ba3c059563935c17b84703187aDouglas Gregor ReceiverType->isIntegerType())) { 2264f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Implicitly convert integers and pointers to 'id' but emit a warning. 2265f85e193739c953358c865005855253af4f68a497John McCall // But not in ARC. 2266f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Loc, diag::warn_bad_receiver_type) 2267f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << ReceiverType 2268f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Receiver->getSourceRange(); 2269f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (ReceiverType->isPointerType()) 2270429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 22711d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK_CPointerToObjCPointerCast).take(); 2272404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall else { 2273404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall // TODO: specialized warning on null receivers? 2274404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall bool IsNull = Receiver->isNullPointerConstant(Context, 2275404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall Expr::NPC_ValueDependentIsNull); 2276d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose CastKind Kind = IsNull ? CK_NullToPointer : CK_IntegralToPointer; 2277429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 2278d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Kind).take(); 2279404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall } 2280f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType = Receiver->getType(); 22810bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall } else { 2282429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult ReceiverRes; 22834e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 22840bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall ReceiverRes = PerformContextuallyConvertToObjCPointer(Receiver); 2285429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ReceiverRes.isUsable()) { 2286429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ReceiverRes.take(); 2287429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return BuildInstanceMessage(Receiver, 2288429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ReceiverType, 2289429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley SuperLoc, 2290429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Sel, 2291429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Method, 2292429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley LBracLoc, 2293951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SelectorLocs, 2294429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley RBracLoc, 22953fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer ArgsIn); 2296429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } else { 2297429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley // Reject other random receiver types (e.g. structs). 2298429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Diag(Loc, diag::err_bad_receiver_type) 2299429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley << ReceiverType << Receiver->getSourceRange(); 2300429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 23013ba606199be8056ae83596260bd6fd5872942905Fariborz Jahanian } 2302f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 230304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 2304fe1a553256b46fad3c0a9e9967481bcf571339ecChris Lattner } 23051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23062725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the message arguments. 23072725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 23085354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 23092725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 2310f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 23112600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian bool ClassMessage = (ReceiverType->isObjCClassType() || 23122600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian ReceiverType->isObjCQualifiedClassType()); 2313376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian if (CheckMessageArgumentTypes(ReceiverType, Args, NumArgs, Sel, 2314376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian SelectorLocs, Method, 2315926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ClassMessage, SuperLoc.isValid(), 2316f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall LBracLoc, RBracLoc, ReturnType, VK)) 23172725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 2318da59e09f1fd53350fcd949adbadd8148117f21b2Fariborz Jahanian 2319483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor if (Method && !Method->getResultType()->isVoidType() && 2320483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor RequireCompleteType(LBracLoc, Method->getResultType(), 2321483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 2322483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 232304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2324951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SourceLocation SelLoc = SelectorLocs.front(); 2325951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis 2326f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from sending messages to 2327f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount explicitly. 23284e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 2329f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodFamily family = 2330f85e193739c953358c865005855253af4f68a497John McCall (Method ? Method->getMethodFamily() : Sel.getMethodFamily()); 2331f85e193739c953358c865005855253af4f68a497John McCall switch (family) { 2332f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 2333f85e193739c953358c865005855253af4f68a497John McCall if (Method) 2334f85e193739c953358c865005855253af4f68a497John McCall checkInitMethod(Method, ReceiverType); 2335f85e193739c953358c865005855253af4f68a497John McCall 2336f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 2337f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 2338f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 233980cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 2340f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 2341f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 2342f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 2343f85e193739c953358c865005855253af4f68a497John McCall break; 2344f85e193739c953358c865005855253af4f68a497John McCall 2345f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 2346f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 2347f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 2348f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 2349f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 2350f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_arc_illegal_explicit_message) 2351951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis << Sel << SelLoc; 2352f85e193739c953358c865005855253af4f68a497John McCall break; 23539670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian 23549670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 23559670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (Method && NumArgs >= 1) { 23569670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (ObjCSelectorExpr *SelExp = dyn_cast<ObjCSelectorExpr>(Args[0])) { 23579670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Selector ArgSel = SelExp->getSelector(); 23589670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodDecl *SelMethod = 23599670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupInstanceMethodInGlobalPool(ArgSel, 23609670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 23619670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod) 23629670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelMethod = 23639670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupFactoryMethodInGlobalPool(ArgSel, 23649670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 23659670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod) { 23669670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodFamily SelFamily = SelMethod->getMethodFamily(); 23679670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian switch (SelFamily) { 23689670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_alloc: 23699670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_copy: 23709670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_mutableCopy: 23719670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_new: 23729670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_self: 23739670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_init: 23749670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // Issue error, unless ns_returns_not_retained. 23759670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod->hasAttr<NSReturnsNotRetainedAttr>()) { 23769670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2377951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 23789670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 23793306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 23803306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 23819670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23829670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 23839670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian default: 23849670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // +0 call. OK. unless ns_returns_retained. 23859670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod->hasAttr<NSReturnsRetainedAttr>()) { 23869670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2387951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 23889670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 23893306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 23903306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 23919670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23929670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 23939670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23949670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23959670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } else { 23969670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // error (may leak). 2397951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, diag::warn_arc_perform_selector_leaks); 23989670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Diag(Args[0]->getExprLoc(), diag::note_used_here); 23999670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24009670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24019670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 2402f85e193739c953358c865005855253af4f68a497John McCall } 2403f85e193739c953358c865005855253af4f68a497John McCall } 2404f85e193739c953358c865005855253af4f68a497John McCall 24052725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr instance. 2406f85e193739c953358c865005855253af4f68a497John McCall ObjCMessageExpr *Result; 24072725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 2408f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 24092d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/true, 2410951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, Method, 2411746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2412746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2413ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 2414f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 2415951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Receiver, Sel, SelectorLocs, Method, 2416746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2417746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2418ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2419ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2420ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2421f85e193739c953358c865005855253af4f68a497John McCall 24224e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 24239879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian DiagnoseARCUseOfWeakReceiver(*this, Receiver); 2424878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian 2425f85e193739c953358c865005855253af4f68a497John McCall // In ARC, annotate delegate init calls. 2426f85e193739c953358c865005855253af4f68a497John McCall if (Result->getMethodFamily() == OMF_init && 2427c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor (SuperLoc.isValid() || isSelfExpr(Receiver))) { 2428f85e193739c953358c865005855253af4f68a497John McCall // Only consider init calls *directly* in init implementations, 2429f85e193739c953358c865005855253af4f68a497John McCall // not within blocks. 2430f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(CurContext); 2431f85e193739c953358c865005855253af4f68a497John McCall if (method && method->getMethodFamily() == OMF_init) { 2432f85e193739c953358c865005855253af4f68a497John McCall // The implicit assignment to self means we also don't want to 2433f85e193739c953358c865005855253af4f68a497John McCall // consume the result. 2434f85e193739c953358c865005855253af4f68a497John McCall Result->setDelegateInitCall(true); 2435f85e193739c953358c865005855253af4f68a497John McCall return Owned(Result); 2436f85e193739c953358c865005855253af4f68a497John McCall } 2437f85e193739c953358c865005855253af4f68a497John McCall } 2438f85e193739c953358c865005855253af4f68a497John McCall 2439f85e193739c953358c865005855253af4f68a497John McCall // In ARC, check for message sends which are likely to introduce 2440f85e193739c953358c865005855253af4f68a497John McCall // retain cycles. 2441f85e193739c953358c865005855253af4f68a497John McCall checkRetainCycles(Result); 2442f85e193739c953358c865005855253af4f68a497John McCall } 2443f85e193739c953358c865005855253af4f68a497John McCall 24442d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 24452725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 24462725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 24472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnInstanceMessage - used for both unary and keyword messages. 24482725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ArgExprs is optional - if it is present, the number of expressions 24492725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// is obtained from Sel.getNumArgs(). 245060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnInstanceMessage(Scope *S, 245160d7b3a319d84d688752be3870615ac0f111fb16John McCall Expr *Receiver, 245260d7b3a319d84d688752be3870615ac0f111fb16John McCall Selector Sel, 245360d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation LBracLoc, 2454951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 245560d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation RBracLoc, 245660d7b3a319d84d688752be3870615ac0f111fb16John McCall MultiExprArg Args) { 24572725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Receiver) 24582725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 245904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 24609ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(Receiver, Receiver->getType(), 2461f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor /*SuperLoc=*/SourceLocation(), Sel, /*Method=*/0, 24623fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer LBracLoc, SelectorLocs, RBracLoc, Args); 246385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 2464eca7be6b7ebd93682eeaab2c71d59f2995dacdccChris Lattner 2465f85e193739c953358c865005855253af4f68a497John McCallenum ARCConversionTypeClass { 24662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// int, void, struct A 2467f85e193739c953358c865005855253af4f68a497John McCall ACTC_none, 24682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id, void (^)() 2470f85e193739c953358c865005855253af4f68a497John McCall ACTC_retainable, 24712cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id*, id***, void (^*)(), 24732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_indirectRetainable, 24742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// void* might be a normal C type, or it might a CF type. 24762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_voidPtr, 24772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// struct A* 24792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_coreFoundation 2480f85e193739c953358c865005855253af4f68a497John McCall}; 24812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyRetainable(ARCConversionTypeClass ACTC) { 24822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return (ACTC == ACTC_retainable || 24832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation || 24842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr); 24852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 24862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyCLike(ARCConversionTypeClass ACTC) { 24872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC == ACTC_none || 24882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr || 24892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation; 24902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 24912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2492f85e193739c953358c865005855253af4f68a497John McCallstatic ARCConversionTypeClass classifyTypeForARCConversion(QualType type) { 24932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall bool isIndirect = false; 2494f85e193739c953358c865005855253af4f68a497John McCall 2495f85e193739c953358c865005855253af4f68a497John McCall // Ignore an outermost reference type. 24962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = type->getAs<ReferenceType>()) { 2497f85e193739c953358c865005855253af4f68a497John McCall type = ref->getPointeeType(); 24982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 24992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2500f85e193739c953358c865005855253af4f68a497John McCall 2501f85e193739c953358c865005855253af4f68a497John McCall // Drill through pointers and arrays recursively. 2502f85e193739c953358c865005855253af4f68a497John McCall while (true) { 2503f85e193739c953358c865005855253af4f68a497John McCall if (const PointerType *ptr = type->getAs<PointerType>()) { 2504f85e193739c953358c865005855253af4f68a497John McCall type = ptr->getPointeeType(); 25052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // The first level of pointer may be the innermost pointer on a CF type. 25072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isIndirect) { 25082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isVoidType()) return ACTC_voidPtr; 25092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isRecordType()) return ACTC_coreFoundation; 25102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2511f85e193739c953358c865005855253af4f68a497John McCall } else if (const ArrayType *array = type->getAsArrayTypeUnsafe()) { 2512f85e193739c953358c865005855253af4f68a497John McCall type = QualType(array->getElementType()->getBaseElementTypeUnsafe(), 0); 2513f85e193739c953358c865005855253af4f68a497John McCall } else { 2514f85e193739c953358c865005855253af4f68a497John McCall break; 2515f85e193739c953358c865005855253af4f68a497John McCall } 25162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 2517f85e193739c953358c865005855253af4f68a497John McCall } 2518f85e193739c953358c865005855253af4f68a497John McCall 25192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isIndirect) { 25202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 25212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_indirectRetainable; 25222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 25232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 25262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_retainable; 25272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 2529f85e193739c953358c865005855253af4f68a497John McCall} 2530f85e193739c953358c865005855253af4f68a497John McCall 2531f85e193739c953358c865005855253af4f68a497John McCallnamespace { 25322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A result from the cast checker. 25332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall enum ACCResult { 25342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Cannot be casted. 25352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_invalid, 25362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be safely retained or not retained. 25382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_bottom, 25392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +0. 25412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusZero, 25422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +1. 25442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusOne 25452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 25462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult merge(ACCResult left, ACCResult right) { 25472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == right) return left; 25482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_bottom) return right; 25492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (right == ACC_bottom) return left; 25502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A checker which white-lists certain expressions whose conversion 25542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// to or from retainable type would otherwise be forbidden in ARC. 25552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall class ARCCastChecker : public StmtVisitor<ARCCastChecker, ACCResult> { 25562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall typedef StmtVisitor<ARCCastChecker, ACCResult> super; 25572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2558f85e193739c953358c865005855253af4f68a497John McCall ASTContext &Context; 25592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass SourceClass; 25602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass TargetClass; 2561533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian bool Diagnose; 25622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall static bool isCFType(QualType type) { 25642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Someday this can use ns_bridged. For now, it has to do this. 25652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return type->isCARCBridgableType(); 2566f85e193739c953358c865005855253af4f68a497John McCall } 25672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall public: 25692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCCastChecker(ASTContext &Context, ARCConversionTypeClass source, 2570533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian ARCConversionTypeClass target, bool diagnose) 2571533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian : Context(Context), SourceClass(source), TargetClass(target), 2572533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian Diagnose(diagnose) {} 25732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall using super::Visit; 25752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult Visit(Expr *e) { 25762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::Visit(e->IgnoreParens()); 2577f85e193739c953358c865005855253af4f68a497John McCall } 25782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmt(Stmt *s) { 25802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Null pointer constants can be casted however you please. 25842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitExpr(Expr *e) { 25852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNotNull)) 25862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 25872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Objective-C string literals can be safely casted. 25912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCStringLiteral(ObjCStringLiteral *e) { 25922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If we're casting to any retainable type, go ahead. Global 25932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // strings are immune to retains, so this is bottom. 25942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass)) return ACC_bottom; 25952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2597f85e193739c953358c865005855253af4f68a497John McCall } 25982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through certain implicit and explicit casts. 26002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCastExpr(CastExpr *e) { 2601f85e193739c953358c865005855253af4f68a497John McCall switch (e->getCastKind()) { 2602f85e193739c953358c865005855253af4f68a497John McCall case CK_NullToPointer: 26032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2605f85e193739c953358c865005855253af4f68a497John McCall case CK_NoOp: 2606f85e193739c953358c865005855253af4f68a497John McCall case CK_LValueToRValue: 2607f85e193739c953358c865005855253af4f68a497John McCall case CK_BitCast: 26081d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_CPointerToObjCPointerCast: 26091d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_BlockPointerToObjCPointerCast: 2610f85e193739c953358c865005855253af4f68a497John McCall case CK_AnyPointerToBlockPointerCast: 2611f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 26122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2613f85e193739c953358c865005855253af4f68a497John McCall default: 26142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2615f85e193739c953358c865005855253af4f68a497John McCall } 2616f85e193739c953358c865005855253af4f68a497John McCall } 26172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through unary extension. 26192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitUnaryExtension(UnaryOperator *e) { 2620f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 2621f85e193739c953358c865005855253af4f68a497John McCall } 26222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Ignore the LHS of a comma operator. 26242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitBinComma(BinaryOperator *e) { 2625f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getRHS()); 2626f85e193739c953358c865005855253af4f68a497John McCall } 26272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Conditional operators are okay if both sides are okay. 26292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitConditionalOperator(ConditionalOperator *e) { 26302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult left = Visit(e->getTrueExpr()); 26312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_invalid) return ACC_invalid; 26322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return merge(left, Visit(e->getFalseExpr())); 2633f85e193739c953358c865005855253af4f68a497John McCall } 26342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26354b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Look through pseudo-objects. 26364b9c2d235fb9449e249d74f48ecfec601650de93John McCall ACCResult VisitPseudoObjectExpr(PseudoObjectExpr *e) { 26374b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If we're getting here, we should always have a result. 26384b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Visit(e->getResultExpr()); 26394b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 26404b9c2d235fb9449e249d74f48ecfec601650de93John McCall 26412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Statement expressions are okay if their result expression is okay. 26422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmtExpr(StmtExpr *e) { 2643f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubStmt()->body_back()); 2644f85e193739c953358c865005855253af4f68a497John McCall } 26452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some declaration references are okay. 26472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitDeclRefExpr(DeclRefExpr *e) { 26482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // References to global constants from system headers are okay. 26492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // These are things like 'kCFStringTransformToLatin'. They are 26502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // can also be assumed to be immune to retains. 26512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall VarDecl *var = dyn_cast<VarDecl>(e->getDecl()); 26522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass) && 26532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isAnyRetainable(SourceClass) && 26542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var && 26552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getStorageClass() == SC_Extern && 26562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getType().isConstQualified() && 26572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall Context.getSourceManager().isInSystemHeader(var->getLocation())) { 26582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 26602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Nothing else. 26622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2663f85e193739c953358c865005855253af4f68a497John McCall } 2664f85e193739c953358c865005855253af4f68a497John McCall 26652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some calls are okay. 26662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCallExpr(CallExpr *e) { 26672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (FunctionDecl *fn = e->getDirectCallee()) 26682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (ACCResult result = checkCallToFunction(fn)) 26692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return result; 26702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26712cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::VisitCallExpr(e); 2672c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 26732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToFunction(FunctionDecl *fn) { 26752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Require a CF*Ref return type. 26762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isCFType(fn->getResultType())) 26772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass)) 26802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'not retained' attribute. 26832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsNotRetainedAttr>()) 26842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 26852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'retained' attribute, except that for 26872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // now we're not going to permit implicit handling of +1 results, 26882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // because it's a bit frightening. 26892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsRetainedAttr>()) 269024b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian return Diagnose ? ACC_plusOne 269124b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian : ACC_invalid; // ACC_plusOne if we start accepting this 26922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Recognize this specific builtin function, which is used by CFSTR. 26942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall unsigned builtinID = fn->getBuiltinID(); 26952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (builtinID == Builtin::BI__builtin___CFStringMakeConstantString) 26962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 269824b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian // Otherwise, don't do anything implicit with an unaudited function. 269924b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian if (!fn->hasAttr<CFAuditedTransferAttr>()) 270024b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian return ACC_invalid; 270124b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian 2702533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian // Otherwise, it's +0 unless it follows the create convention. 2703533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian if (ento::coreFoundation::followsCreateRule(fn)) 2704533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian return Diagnose ? ACC_plusOne 2705533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian : ACC_invalid; // ACC_plusOne if we start accepting this 27062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 27082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCMessageExpr(ObjCMessageExpr *e) { 27112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(e->getMethodDecl()); 27122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *e) { 27152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ObjCMethodDecl *method; 27162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isExplicitProperty()) 27172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getExplicitProperty()->getGetterMethodDecl(); 27182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall else 27192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getImplicitPropertyGetter(); 27202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(method); 27212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToMethod(ObjCMethodDecl *method) { 27242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!method) return ACC_invalid; 27252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Check for message sends to functions returning CF types. We 27272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // just obey the Cocoa conventions with these, even though the 27282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // return type is CF. 27292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass) || !isCFType(method->getResultType())) 27302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 27312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked not-retained, it's +0. 27332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsNotRetainedAttr>()) 27342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 27352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked as returning retained, or its 27372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // selector follows a +1 Cocoa convention, treat it as +1. 27382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsRetainedAttr>()) 27392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 27402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall switch (method->getSelector().getMethodFamily()) { 27422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_alloc: 27432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_copy: 27442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_mutableCopy: 27452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_new: 27462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 27472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall default: 27492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, treat it as +0. 27502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 2751c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 2752af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian } 27532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 27541522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian} 27551522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian 2756684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidisbool Sema::isKnownName(StringRef name) { 2757684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis if (name.empty()) 2758684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis return false; 2759684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis LookupResult R(*this, &Context.Idents.get(name), SourceLocation(), 276052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian Sema::LookupOrdinaryName); 2761684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis return LookupName(R, TUScope, false); 276252b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian} 276352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 2764ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidisstatic void addFixitForObjCARCConversion(Sema &S, 2765ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder &DiagB, 2766ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Sema::CheckedConversionKind CCK, 2767ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceLocation afterLParen, 2768ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis QualType castType, 2769ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castExpr, 2770ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *bridgeKeyword, 2771ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *CFBridgeName) { 2772ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis // We handle C-style and implicit casts here. 2773ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis switch (CCK) { 2774ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_ImplicitConversion: 2775ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_CStyleCast: 2776ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis break; 2777ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_FunctionalCast: 2778ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_OtherCast: 2779ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 2780ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2781ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 2782ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CFBridgeName) { 2783ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr; 2784ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CStyleCastExpr *CCE = dyn_cast<CStyleCastExpr>(castedE)) 2785ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = CCE->getSubExpr(); 2786ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = castedE->IgnoreImpCasts(); 2787ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 2788d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 2789d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose SmallString<32> BridgeCall; 2790d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 2791d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose SourceManager &SM = S.getSourceManager(); 2792d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose char PrevChar = *SM.getCharacterData(range.getBegin().getLocWithOffset(-1)); 2793d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose if (Lexer::isIdentifierBodyChar(PrevChar, S.getLangOpts())) 2794d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall += ' '; 2795d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 2796d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall += CFBridgeName; 2797d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 2798ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 2799ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2800d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall)); 2801ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2802d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall += '('; 2803ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2804d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall)); 2805ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 2806ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 2807ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 2808ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2809ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 2810ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2811ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 2812ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CCK == Sema::CCK_CStyleCast) { 2813ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(afterLParen, bridgeKeyword)); 2814ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2815ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis std::string castCode = "("; 2816ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += bridgeKeyword; 2817ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += castType.getAsString(); 2818ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += ")"; 2819ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr->IgnoreImpCasts(); 2820ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 2821ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 2822ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2823ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 2824ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2825ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += "("; 2826ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2827ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 2828ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 2829ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 2830ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 2831ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2832ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2833ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis} 2834ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 28355acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallstatic void 28365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCalldiagnoseObjCARCConversion(Sema &S, SourceRange castRange, 28375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType, ARCConversionTypeClass castACTC, 28385acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr, ARCConversionTypeClass exprACTC, 28395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Sema::CheckedConversionKind CCK) { 28405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation loc = 28415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall (castRange.isValid() ? castRange.getBegin() : castExpr->getExprLoc()); 28425acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (S.makeUnavailableInSystemHeader(loc, 28445acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall "converts between Objective-C and C pointers in -fobjc-arc")) 28455acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 28465acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28475acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castExprType = castExpr->getType(); 28485acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28495acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned srcKind = 0; 28505acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall switch (exprACTC) { 28515acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_none: 28525acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_coreFoundation: 28535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_voidPtr: 28545acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isPointerType() ? 1 : 0); 28555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28565acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_retainable: 28575acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isBlockPointerType() ? 2 : 3); 28585acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28595acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_indirectRetainable: 28605acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = 4; 28615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 28635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Check whether this could be fixed with a bridge cast. 28655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation afterLParen = S.PP.getLocForEndOfToken(castRange.getBegin()); 28665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation noteLoc = afterLParen.isValid() ? afterLParen : loc; 28675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from an ARC type to a CF type. 28695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (castACTC == ACTC_retainable && isAnyRetainable(exprACTC)) { 287052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 28715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 28725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 28735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // of C pointer type 28745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 28755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castType->isBlockPointerType()) // to ObjC|block type 28765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 28775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 28785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 2879684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = S.isKnownName("CFBridgingRelease"); 28802f71622dc8888e6da7ce786e42e8e9fbab075de6Jordan Rose ACCResult CreateRule = 288124b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian ARCCastChecker(S.Context, exprACTC, castACTC, true).Visit(castExpr); 28822f71622dc8888e6da7ce786e42e8e9fbab075de6Jordan Rose assert(CreateRule != ACC_bottom && "This cast should already be accepted."); 288324b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian if (CreateRule != ACC_plusOne) 2884607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 2885607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge); 2886607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2887607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian castType, castExpr, "__bridge ", 0); 2888607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 288974cb390d238b55cede882ef5f598215c3537ae95Fariborz Jahanian if (CreateRule != ACC_plusZero) 2890607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 2891607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian DiagnosticBuilder DiagB = S.Diag(br ? castExpr->getExprLoc() : noteLoc, 2892607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian diag::note_arc_bridge_transfer) 2893607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian << castExprType << br; 2894607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2895607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian castType, castExpr, "__bridge_transfer ", 2896607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian br ? "CFBridgingRelease" : 0); 2897607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 28985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 29005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 29015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from a CF type to an ARC type. 29035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC)) { 2904684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = S.isKnownName("CFBridgingRetain"); 29055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 29065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 29075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castExprType->isBlockPointerType()) // of ObjC|block type 29085acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 29095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // to C pointer type 29105acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 29115acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 29125acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 291324b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian ACCResult CreateRule = 291424b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian ARCCastChecker(S.Context, exprACTC, castACTC, true).Visit(castExpr); 29152f71622dc8888e6da7ce786e42e8e9fbab075de6Jordan Rose assert(CreateRule != ACC_bottom && "This cast should already be accepted."); 291624b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian if (CreateRule != ACC_plusOne) 2917607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 2918607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge); 2919607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2920607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian castType, castExpr, "__bridge ", 0); 2921607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 292274cb390d238b55cede882ef5f598215c3537ae95Fariborz Jahanian if (CreateRule != ACC_plusZero) 2923607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 2924607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian DiagnosticBuilder DiagB = S.Diag(br ? castExpr->getExprLoc() : noteLoc, 2925607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian diag::note_arc_bridge_retained) 2926607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian << castType << br; 2927607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2928607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian castType, castExpr, "__bridge_retained ", 2929607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian br ? "CFBridgingRetain" : 0); 2930607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 29315acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29325acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 29335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 29345acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29355acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_mismatched_cast) 29365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << (CCK != Sema::CCK_ImplicitConversion) 29375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << srcKind << castExprType << castType 29385acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange << castExpr->getSourceRange(); 29395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 29405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallSema::ARCConversionResult 2942f85e193739c953358c865005855253af4f68a497John McCallSema::CheckObjCARCConversion(SourceRange castRange, QualType castType, 2943af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian Expr *&castExpr, CheckedConversionKind CCK) { 2944f85e193739c953358c865005855253af4f68a497John McCall QualType castExprType = castExpr->getType(); 29452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For the purposes of the classification, we assume reference types 29472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // will bind to temporaries. 29482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall QualType effCastType = castType; 29492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = castType->getAs<ReferenceType>()) 29502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall effCastType = ref->getPointeeType(); 2951f85e193739c953358c865005855253af4f68a497John McCall 2952f85e193739c953358c865005855253af4f68a497John McCall ARCConversionTypeClass exprACTC = classifyTypeForARCConversion(castExprType); 29532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass castACTC = classifyTypeForARCConversion(effCastType); 29546d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian if (exprACTC == castACTC) { 29556d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // check for viablity and report error if casting an rvalue to a 29566d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // life-time qualifier. 2957fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if ((castACTC == ACTC_retainable) && 29586d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian (CCK == CCK_CStyleCast || CCK == CCK_OtherCast) && 2959fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castType != castExprType)) { 2960fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian const Type *DT = castType.getTypePtr(); 2961fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QualType QDT = castType; 2962fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // We desugar some types but not others. We ignore those 2963fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // that cannot happen in a cast; i.e. auto, and those which 2964fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // should not be de-sugared; i.e typedef. 2965fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (const ParenType *PT = dyn_cast<ParenType>(DT)) 2966fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = PT->desugar(); 2967fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const TypeOfType *TP = dyn_cast<TypeOfType>(DT)) 2968fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = TP->desugar(); 2969fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const AttributedType *AT = dyn_cast<AttributedType>(DT)) 2970fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = AT->desugar(); 2971fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (QDT != castType && 2972fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT.getObjCLifetime() != Qualifiers::OCL_None) { 2973fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian SourceLocation loc = 2974fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castRange.isValid() ? castRange.getBegin() 2975fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian : castExpr->getExprLoc()); 2976fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian Diag(loc, diag::err_arc_nolifetime_behavior); 2977fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian } 29786d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 29796d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian return ACR_okay; 29806d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 29816d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian 29825acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (isAnyCLike(exprACTC) && isAnyCLike(castACTC)) return ACR_okay; 29832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Allow all of these types to be cast to integer types (but not 29852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // vice-versa). 29862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_none && castType->isIntegralType(Context)) 29875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 2988f85e193739c953358c865005855253af4f68a497John McCall 2989f85e193739c953358c865005855253af4f68a497John McCall // Allow casts between pointers to lifetime types (e.g., __strong id*) 2990f85e193739c953358c865005855253af4f68a497John McCall // and pointers to void (e.g., cv void *). Casting from void* to lifetime* 2991f85e193739c953358c865005855253af4f68a497John McCall // must be explicit. 29922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (exprACTC == ACTC_indirectRetainable && castACTC == ACTC_voidPtr) 29935acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_indirectRetainable && exprACTC == ACTC_voidPtr && 29952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CCK != CCK_ImplicitConversion) 29965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2998533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian switch (ARCCastChecker(Context, exprACTC, castACTC, false).Visit(castExpr)) { 29992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For invalid casts, fall through. 30002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_invalid: 30012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall break; 30022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Do nothing for both bottom and +0. 30042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_bottom: 30052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusZero: 30065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 30072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the result is +1, consume it here. 30092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusOne: 30102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall castExpr = ImplicitCastExpr::Create(Context, castExpr->getType(), 30112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CK_ARCConsumeObject, castExpr, 30122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 0, VK_RValue); 30132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ExprNeedsCleanups = true; 30145acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 30152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 30165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30175acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // If this is a non-implicit cast from id or block type to a 30185acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // CoreFoundation type, delay complaining in case the cast is used 30195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // in an acceptable context. 30205acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC) && 30215acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK != CCK_ImplicitConversion) 30225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_unbridged; 30235acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30245acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 30255acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castExpr, exprACTC, CCK); 30265acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 30275acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 30285acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30295acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// Given that we saw an expression with the ARCUnbridgedCastTy 30305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// placeholder type, complain bitterly. 30315acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallvoid Sema::diagnoseARCUnbridgedCast(Expr *e) { 30325acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // We expect the spurious ImplicitCastExpr to already have been stripped. 30335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 30345acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CastExpr *realCast = cast<CastExpr>(e->IgnoreParens()); 30355acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceRange castRange; 30375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType; 30385acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CheckedConversionKind CCK; 30395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (CStyleCastExpr *cast = dyn_cast<CStyleCastExpr>(realCast)) { 30415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = SourceRange(cast->getLParenLoc(), cast->getRParenLoc()); 30425acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 30435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_CStyleCast; 30445acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (ExplicitCastExpr *cast = dyn_cast<ExplicitCastExpr>(realCast)) { 30455acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = cast->getTypeInfoAsWritten()->getTypeLoc().getSourceRange(); 30465acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 30475acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_OtherCast; 30485acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 30495acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getType(); 30505acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_ImplicitConversion; 3051f85e193739c953358c865005855253af4f68a497John McCall } 30525acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ARCConversionTypeClass castACTC = 30545acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall classifyTypeForARCConversion(castType.getNonReferenceType()); 30555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30565acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr = realCast->getSubExpr(); 30575acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(classifyTypeForARCConversion(castExpr->getType()) == ACTC_retainable); 30585acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30595acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 30605acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castExpr, ACTC_retainable, CCK); 30615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 30625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// stripARCUnbridgedCast - Given an expression of ARCUnbridgedCast 30645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// type, remove the placeholder cast. 30655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallExpr *Sema::stripARCUnbridgedCast(Expr *e) { 30665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 30675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (ParenExpr *pe = dyn_cast<ParenExpr>(e)) { 30695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(pe->getSubExpr()); 30705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) ParenExpr(pe->getLParen(), pe->getRParen(), sub); 30715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (UnaryOperator *uo = dyn_cast<UnaryOperator>(e)) { 30725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(uo->getOpcode() == UO_Extension); 30735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(uo->getSubExpr()); 30745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) UnaryOperator(sub, UO_Extension, sub->getType(), 30755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub->getValueKind(), sub->getObjectKind(), 30765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall uo->getOperatorLoc()); 30775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (GenericSelectionExpr *gse = dyn_cast<GenericSelectionExpr>(e)) { 30785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!gse->isResultDependent()); 30795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned n = gse->getNumAssocs(); 30815acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<Expr*, 4> subExprs(n); 30825acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<TypeSourceInfo*, 4> subTypes(n); 30835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall for (unsigned i = 0; i != n; ++i) { 30845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subTypes[i] = gse->getAssocTypeSourceInfo(i); 30855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = gse->getAssocExpr(i); 30865acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (i == gse->getResultIndex()) 30875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub = stripARCUnbridgedCast(sub); 30885acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subExprs[i] = sub; 3089f85e193739c953358c865005855253af4f68a497John McCall } 30905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30915acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) GenericSelectionExpr(Context, gse->getGenericLoc(), 30925acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getControllingExpr(), 30933b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer subTypes, subExprs, 30943b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer gse->getDefaultLoc(), 30955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getRParenLoc(), 30965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->containsUnexpandedParameterPack(), 30975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getResultIndex()); 30985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 30995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(isa<ImplicitCastExpr>(e) && "bad form of unbridged cast!"); 31005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return cast<ImplicitCastExpr>(e)->getSubExpr(); 3101f85e193739c953358c865005855253af4f68a497John McCall } 3102f85e193739c953358c865005855253af4f68a497John McCall} 3103f85e193739c953358c865005855253af4f68a497John McCall 31047a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanianbool Sema::CheckObjCARCUnavailableWeakConversion(QualType castType, 31057a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType exprType) { 31067a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canCastType = 31077a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(castType).getUnqualifiedType(); 31087a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canExprType = 31097a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(exprType).getUnqualifiedType(); 31107a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (isa<ObjCObjectPointerType>(canCastType) && 31117a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian castType.getObjCLifetime() == Qualifiers::OCL_Weak && 31127a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->isObjCObjectPointerType()) { 31137a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (const ObjCObjectPointerType *ObjT = 31147a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->getAs<ObjCObjectPointerType>()) 3115a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith if (const ObjCInterfaceDecl *ObjI = ObjT->getInterfaceDecl()) 3116a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith return !ObjI->isArcWeakrefUnavailable(); 31177a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian } 31187a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian return true; 31197a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian} 31207a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian 31217e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall/// Look for an ObjCReclaimReturnedObject cast and destroy it. 31227e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCallstatic Expr *maybeUndoReclaimObject(Expr *e) { 31237e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // For now, we just undo operands that are *immediately* reclaim 31247e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // expressions, which prevents the vast majority of potential 31257e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // problems here. To catch them all, we'd need to rebuild arbitrary 31267e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // value-propagating subexpressions --- we can't reliably rebuild 31277e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // in-place because of expression sharing. 31287e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall if (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 312933e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall if (ice->getCastKind() == CK_ARCReclaimReturnedObject) 31307e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return ice->getSubExpr(); 31317e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 31327e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return e; 31337e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall} 31347e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 3135f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::BuildObjCBridgedCast(SourceLocation LParenLoc, 3136f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3137f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3138f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo, 3139f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 31404906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall ExprResult SubResult = UsualUnaryConversions(SubExpr); 31414906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall if (SubResult.isInvalid()) return ExprError(); 31424906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall SubExpr = SubResult.take(); 31434906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall 3144f85e193739c953358c865005855253af4f68a497John McCall QualType T = TSInfo->getType(); 3145f85e193739c953358c865005855253af4f68a497John McCall QualType FromType = SubExpr->getType(); 3146f85e193739c953358c865005855253af4f68a497John McCall 31471d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK; 31481d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall 3149f85e193739c953358c865005855253af4f68a497John McCall bool MustConsume = false; 3150f85e193739c953358c865005855253af4f68a497John McCall if (T->isDependentType() || SubExpr->isTypeDependent()) { 3151f85e193739c953358c865005855253af4f68a497John McCall // Okay: we'll build a dependent expression type. 31521d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_Dependent; 3153f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isObjCARCBridgableType() && FromType->isCARCBridgableType()) { 3154f85e193739c953358c865005855253af4f68a497John McCall // Casting CF -> id 31551d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = (T->isBlockPointerType() ? CK_AnyPointerToBlockPointerCast 31561d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall : CK_CPointerToObjCPointerCast); 3157f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3158f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 3159f85e193739c953358c865005855253af4f68a497John McCall break; 3160f85e193739c953358c865005855253af4f68a497John McCall 316152b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeRetained: { 3162684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = isKnownName("CFBridgingRelease"); 3163f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3164f85e193739c953358c865005855253af4f68a497John McCall << 2 3165f85e193739c953358c865005855253af4f68a497John McCall << FromType 3166f85e193739c953358c865005855253af4f68a497John McCall << (T->isBlockPointerType()? 1 : 0) 3167f85e193739c953358c865005855253af4f68a497John McCall << T 3168f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3169f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3170f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3171f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge"); 3172f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_transfer) 317352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FromType << br 3174f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, 317552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRelease " 317652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian : "__bridge_transfer "); 3177f85e193739c953358c865005855253af4f68a497John McCall 3178f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3179f85e193739c953358c865005855253af4f68a497John McCall break; 318052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3181f85e193739c953358c865005855253af4f68a497John McCall 3182f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeTransfer: 3183f85e193739c953358c865005855253af4f68a497John McCall // We must consume the Objective-C object produced by the cast. 3184f85e193739c953358c865005855253af4f68a497John McCall MustConsume = true; 3185f85e193739c953358c865005855253af4f68a497John McCall break; 3186f85e193739c953358c865005855253af4f68a497John McCall } 3187f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isCARCBridgableType() && FromType->isObjCARCBridgableType()) { 3188f85e193739c953358c865005855253af4f68a497John McCall // Okay: id -> CF 31891d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 3190f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3191f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 31927e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // Reclaiming a value that's going to be __bridge-casted to CF 31937e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // is very dangerous, so we don't do it. 31947e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall SubExpr = maybeUndoReclaimObject(SubExpr); 3195f85e193739c953358c865005855253af4f68a497John McCall break; 3196f85e193739c953358c865005855253af4f68a497John McCall 3197f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeRetained: 3198f85e193739c953358c865005855253af4f68a497John McCall // Produce the object before casting it. 3199f85e193739c953358c865005855253af4f68a497John McCall SubExpr = ImplicitCastExpr::Create(Context, FromType, 320033e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall CK_ARCProduceObject, 3201f85e193739c953358c865005855253af4f68a497John McCall SubExpr, 0, VK_RValue); 3202f85e193739c953358c865005855253af4f68a497John McCall break; 3203f85e193739c953358c865005855253af4f68a497John McCall 320452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeTransfer: { 3205684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = isKnownName("CFBridgingRetain"); 3206f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3207f85e193739c953358c865005855253af4f68a497John McCall << (FromType->isBlockPointerType()? 1 : 0) 3208f85e193739c953358c865005855253af4f68a497John McCall << FromType 3209f85e193739c953358c865005855253af4f68a497John McCall << 2 3210f85e193739c953358c865005855253af4f68a497John McCall << T 3211f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3212f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3213f85e193739c953358c865005855253af4f68a497John McCall 3214f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3215f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge "); 3216f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_retained) 321752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << T << br 321852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FixItHint::CreateReplacement(BridgeKeywordLoc, 321952b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRetain " : "__bridge_retained"); 3220f85e193739c953358c865005855253af4f68a497John McCall 3221f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3222f85e193739c953358c865005855253af4f68a497John McCall break; 3223f85e193739c953358c865005855253af4f68a497John McCall } 322452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3225f85e193739c953358c865005855253af4f68a497John McCall } else { 3226f85e193739c953358c865005855253af4f68a497John McCall Diag(LParenLoc, diag::err_arc_bridge_cast_incompatible) 3227f85e193739c953358c865005855253af4f68a497John McCall << FromType << T << Kind 3228f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3229f85e193739c953358c865005855253af4f68a497John McCall << TSInfo->getTypeLoc().getSourceRange(); 3230f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 3231f85e193739c953358c865005855253af4f68a497John McCall } 3232f85e193739c953358c865005855253af4f68a497John McCall 32331d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall Expr *Result = new (Context) ObjCBridgedCastExpr(LParenLoc, Kind, CK, 3234f85e193739c953358c865005855253af4f68a497John McCall BridgeKeywordLoc, 3235f85e193739c953358c865005855253af4f68a497John McCall TSInfo, SubExpr); 3236f85e193739c953358c865005855253af4f68a497John McCall 3237f85e193739c953358c865005855253af4f68a497John McCall if (MustConsume) { 3238f85e193739c953358c865005855253af4f68a497John McCall ExprNeedsCleanups = true; 323933e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall Result = ImplicitCastExpr::Create(Context, T, CK_ARCConsumeObject, Result, 3240f85e193739c953358c865005855253af4f68a497John McCall 0, VK_RValue); 3241f85e193739c953358c865005855253af4f68a497John McCall } 3242f85e193739c953358c865005855253af4f68a497John McCall 3243f85e193739c953358c865005855253af4f68a497John McCall return Result; 3244f85e193739c953358c865005855253af4f68a497John McCall} 3245f85e193739c953358c865005855253af4f68a497John McCall 3246f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::ActOnObjCBridgedCast(Scope *S, 3247f85e193739c953358c865005855253af4f68a497John McCall SourceLocation LParenLoc, 3248f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3249f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3250f85e193739c953358c865005855253af4f68a497John McCall ParsedType Type, 3251f85e193739c953358c865005855253af4f68a497John McCall SourceLocation RParenLoc, 3252f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 3253f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo = 0; 3254f85e193739c953358c865005855253af4f68a497John McCall QualType T = GetTypeFromParser(Type, &TSInfo); 3255f85e193739c953358c865005855253af4f68a497John McCall if (!TSInfo) 3256f85e193739c953358c865005855253af4f68a497John McCall TSInfo = Context.getTrivialTypeSourceInfo(T, LParenLoc); 3257f85e193739c953358c865005855253af4f68a497John McCall return BuildObjCBridgedCast(LParenLoc, Kind, BridgeKeywordLoc, TSInfo, 3258f85e193739c953358c865005855253af4f68a497John McCall SubExpr); 3259f85e193739c953358c865005855253af4f68a497John McCall} 3260