SemaExprObjC.cpp revision 3eda6fa901b462f0b5f72d0651f46d804aac1844
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()) 348ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Seq.Perform(S, Entity, Kind, MultiExprArg(S, &Element, 1)); 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; 542eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 543eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 544eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!BoxingMethod) { 545eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_objc_illegal_boxed_expression_type) 546eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << ValueType << ValueExpr->getSourceRange(); 547eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 548eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 549eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 550eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to the type that the parameter requires. 551e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParmVarDecl *ParamDecl = BoxingMethod->param_begin()[0]; 552e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 553e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParamDecl); 554e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ExprResult ConvertedValueExpr = PerformCopyInitialization(Entity, 555e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceLocation(), 556e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard Owned(ValueExpr)); 557eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ConvertedValueExpr.isInvalid()) 558eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 559eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = ConvertedValueExpr.get(); 560eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 561eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 562eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(ValueExpr, BoxedType, 563eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod, SR); 564eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return MaybeBindToTemporary(BoxedExpr); 565eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard} 566eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 567ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCSubscriptExpression(SourceLocation RB, Expr *BaseExpr, 568ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *IndexExpr, 569ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *getterMethod, 570ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *setterMethod) { 571ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Feature support is for modern abi. 572ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!LangOpts.ObjCNonFragileABI) 573ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 574ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If the expression is type-dependent, there's nothing for us to do. 575ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek assert ((!BaseExpr->isTypeDependent() && !IndexExpr->isTypeDependent()) && 576ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek "base or index cannot have dependent type here"); 577ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = CheckPlaceholderExpr(IndexExpr); 578ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 579ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 580ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr = Result.get(); 581ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 582ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Perform lvalue-to-rvalue conversion. 583ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = DefaultLvalueConversion(BaseExpr); 584ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 585ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 586ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr = Result.get(); 587ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Owned(ObjCSubscriptRefExpr::Create(Context, 588ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr, 589ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr, 590ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.PseudoObjectTy, 591ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek getterMethod, 592ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek setterMethod, RB)); 593ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 594ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 595ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 596ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCArrayLiteral(SourceRange SR, MultiExprArg Elements) { 597ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSArray class, if we haven't done so already. 598ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 599ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 600ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 601ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), 602ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek LookupOrdinaryName); 603ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 6044e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSArrayDecl && getLangOpts().DebuggerObjCLiteral) 605ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = ObjCInterfaceDecl::Create (Context, 606ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 607ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 608ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 609ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0, SourceLocation()); 610ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 611ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 612ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsarray); 613ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 614ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 615ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 616ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 617ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the arrayWithObjects:count: method, if we haven't done so already. 618ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 619ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod) { 620ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector 621ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sel = NSAPIObj->getNSArraySelector(NSAPI::NSArr_arrayWithObjectsCount); 622c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ObjCMethodDecl *Method = NSArrayDecl->lookupClassMethod(Sel); 623c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method && getLangOpts().DebuggerObjCLiteral) { 624ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek TypeSourceInfo *ResultTInfo = 0; 625c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method = ObjCMethodDecl::Create(Context, 626ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 627ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 628ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ResultTInfo, 629ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 630ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 631ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isSynthesized=*/false, 632ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 633ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 634ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 635ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 2> Params; 636c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *objects = ParmVarDecl::Create(Context, Method, 637d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 638d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 639d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("objects"), 640d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 641d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 642d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 643ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 644c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *cnt = ParmVarDecl::Create(Context, Method, 645d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 646d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 647d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("cnt"), 648d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.UnsignedLongTy, 649d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 650d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 651ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 652c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method->setMethodParams(Context, Params, ArrayRef<SourceLocation>()); 653ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 654ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 655c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSArrayDecl, Sel, Method)) 656ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 657c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 6583eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all elements should be converted to. 6593eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType T = Method->param_begin()[0]->getType(); 6603eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrT = T->getAs<PointerType>(); 6613eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrT || 6623eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrT->getPointeeType(), IdT)) { 6633eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 6643eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 6653eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[0]->getLocation(), 6663eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 6673eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 0 << T 6683eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 6693eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 6703eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 6713eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 6723eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Check that the 'count' parameter is integral. 6733eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!Method->param_begin()[1]->getType()->isIntegerType()) { 6743eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 6753eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 6763eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[1]->getLocation(), 6773eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 6783eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 1 6793eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Method->param_begin()[1]->getType() 6803eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << "integral"; 6813eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 6823eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 6833eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 6843eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // We've found a good +arrayWithObjects:count: method. Save it! 685c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ArrayWithObjectsMethod = Method; 686ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 687ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 6883eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ObjectsType = ArrayWithObjectsMethod->param_begin()[0]->getType(); 6893eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType RequiredType = ObjectsType->castAs<PointerType>()->getPointeeType(); 690ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 691ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the elements provided is valid in a collection literal, 692ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // performing conversions as necessary. 693ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr **ElementsBuffer = Elements.get(); 694ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = Elements.size(); I != N; ++I) { 695ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Converted = CheckObjCCollectionLiteralElement(*this, 696ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I], 6973eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose RequiredType); 698ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Converted.isInvalid()) 699ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 700ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 701ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I] = Converted.get(); 702ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 703ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 704ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 705ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 706ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSArrayDecl)); 707ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 708ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 709ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCArrayLiteral::Create(Context, 710ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::makeArrayRef(Elements.get(), 711ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements.size()), 712ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Ty, ArrayWithObjectsMethod, SR)); 713ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 714ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 715ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCDictionaryLiteral(SourceRange SR, 716ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryElement *Elements, 717ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned NumElements) { 718ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSDictionary class, if we haven't done so already. 719ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 720ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 721ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 722ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), LookupOrdinaryName); 723ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 7244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSDictionaryDecl && getLangOpts().DebuggerObjCLiteral) 725ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = ObjCInterfaceDecl::Create (Context, 726ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 727ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 728ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 729ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0, SourceLocation()); 730ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 731ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 732ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsdictionary); 733ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 734ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 735ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 736ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 737ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the dictionaryWithObjects:forKeys:count: method, if we haven't done 738ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // so already. 739ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 740ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod) { 741ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = NSAPIObj->getNSDictionarySelector( 742d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSAPI::NSDict_dictionaryWithObjectsForKeysCount); 743c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ObjCMethodDecl *Method = NSDictionaryDecl->lookupClassMethod(Sel); 744c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method && getLangOpts().DebuggerObjCLiteral) { 745c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method = ObjCMethodDecl::Create(Context, 746ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 747ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 748ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 0 /*TypeSourceInfo */, 749ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 750ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 751ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isSynthesized=*/false, 752ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 753ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 754ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 755ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 3> Params; 756c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *objects = ParmVarDecl::Create(Context, Method, 757d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 758d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 759d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("objects"), 760d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 761d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 762d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 763ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 764c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *keys = ParmVarDecl::Create(Context, Method, 765d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 766d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 767d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("keys"), 768d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 769d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 770d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 771ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(keys); 772c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *cnt = ParmVarDecl::Create(Context, Method, 773d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 774d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 775d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("cnt"), 776d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.UnsignedLongTy, 777d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*TInfo=*/0, SC_None, SC_None, 778d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 779ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 780c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method->setMethodParams(Context, Params, ArrayRef<SourceLocation>()); 781ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 782ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 783c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSDictionaryDecl, Sel, 784c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method)) 785c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return ExprError(); 786c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 7873eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all values should be converted to. 7883eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValueT = Method->param_begin()[0]->getType(); 7893eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrValue = ValueT->getAs<PointerType>(); 7903eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrValue || 7913eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrValue->getPointeeType(), IdT)) { 7923eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 7933eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 7943eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[0]->getLocation(), 7953eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 7963eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 0 << ValueT 7973eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 7983eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 7993eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 800ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 8013eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all keys should be converted to. 8023eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeyT = Method->param_begin()[1]->getType(); 8033eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrKey = KeyT->getAs<PointerType>(); 8043eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrKey || 8053eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 8063eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose IdT)) { 8073eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose bool err = true; 8083eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (PtrKey) { 8093eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (QIDNSCopying.isNull()) { 8103eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // key argument of selector is id<NSCopying>? 8113eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (ObjCProtocolDecl *NSCopyingPDecl = 8123eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose LookupProtocol(&Context.Idents.get("NSCopying"), SR.getBegin())) { 8133eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose ObjCProtocolDecl *PQ[] = {NSCopyingPDecl}; 8143eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying = 8153eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 8163eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose (ObjCProtocolDecl**) PQ,1); 8173eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying = Context.getObjCObjectPointerType(QIDNSCopying); 8183eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 819ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8203eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!QIDNSCopying.isNull()) 8213eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose err = !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 8223eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying); 823ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 824ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 8253eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (err) { 8263eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8273eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 8283eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[1]->getLocation(), 8293eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 8303eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 1 << KeyT 8313eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 8323eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 8333eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 8343eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 8353eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8363eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Check that the 'count' parameter is integral. 8373eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType CountType = Method->param_begin()[2]->getType(); 8383eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!CountType->isIntegerType()) { 839ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8403eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 8413eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(Method->param_begin()[2]->getLocation(), 842ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 8433eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 2 << CountType 8443eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << "integral"; 845ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 846ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8473eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8483eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // We've found a good +dictionaryWithObjects:keys:count: method; save it! 8493eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose DictionaryWithObjectsMethod = Method; 850ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8513eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8523eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValuesT = DictionaryWithObjectsMethod->param_begin()[0]->getType(); 8533eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValueT = ValuesT->castAs<PointerType>()->getPointeeType(); 8543eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeysT = DictionaryWithObjectsMethod->param_begin()[1]->getType(); 8553eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeyT = KeysT->castAs<PointerType>()->getPointeeType(); 856ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 857ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the keys and values provided is valid in a collection 858ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // literal, performing conversions as necessary. 859ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool HasPackExpansions = false; 860ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = NumElements; I != N; ++I) { 861ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the key. 862ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Key = CheckObjCCollectionLiteralElement(*this, Elements[I].Key, 863ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek KeyT); 864ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Key.isInvalid()) 865ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 866ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 867ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the value. 868ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Value 869ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = CheckObjCCollectionLiteralElement(*this, Elements[I].Value, ValueT); 870ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Value.isInvalid()) 871ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 872ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 873ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Key = Key.get(); 874ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value = Value.get(); 875ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 876ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Elements[I].EllipsisLoc.isInvalid()) 877ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek continue; 878ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 879ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Elements[I].Key->containsUnexpandedParameterPack() && 880ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Elements[I].Value->containsUnexpandedParameterPack()) { 881ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(Elements[I].EllipsisLoc, 882ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_pack_expansion_without_parameter_packs) 883ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << SourceRange(Elements[I].Key->getLocStart(), 884ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value->getLocEnd()); 885ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 886ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 887ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 888ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions = true; 889ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 890ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 891ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 892ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 893ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 894ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSDictionaryDecl)); 895ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 896ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryLiteral::Create(Context, 897ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::makeArrayRef(Elements, 898ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumElements), 899ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions, 900ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Ty, 901ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DictionaryWithObjectsMethod, SR)); 90285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 90385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 9043b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios KyrtzidisExprResult Sema::BuildObjCEncodeExpression(SourceLocation AtLoc, 90581d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *EncodedTypeInfo, 906fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson SourceLocation RParenLoc) { 90781d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = EncodedTypeInfo->getType(); 908fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson QualType StrTy; 9091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EncodedType->isDependentType()) 910fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.DependentTy; 911fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson else { 9126c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian if (!EncodedType->getAsArrayTypeUnsafe() && //// Incomplete array is handled. 9136c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian !EncodedType->isVoidType()) // void is handled too. 9143b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis if (RequireCompleteType(AtLoc, EncodedType, 915d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_incomplete_type_objc_at_encode, 916d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor EncodedTypeInfo->getTypeLoc())) 9173b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis return ExprError(); 9183b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis 919fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson std::string Str; 920fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson Context.getObjCEncodingForType(EncodedType, Str); 921fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 922fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // The type of @encode is the same as the type of the corresponding string, 923fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // which is an array type. 924fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.CharTy; 925fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // A C++ string literal has a const-qualified element type (C++ 2.13.4p1). 9264e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) 927fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy.addConst(); 928fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.getConstantArrayType(StrTy, llvm::APInt(32, Str.size()+1), 929fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson ArrayType::Normal, 0); 930fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson } 9311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 93281d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return new (Context) ObjCEncodeExpr(StrTy, EncodedTypeInfo, AtLoc, RParenLoc); 933fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson} 934fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 935f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCEncodeExpression(SourceLocation AtLoc, 936f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation EncodeLoc, 937f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 938f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ParsedType ty, 939f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 940e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info ? 94181d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *TInfo; 94281d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = GetTypeFromParser(ty, &TInfo); 94381d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor if (!TInfo) 94481d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TInfo = Context.getTrivialTypeSourceInfo(EncodedType, 94581d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor PP.getLocForEndOfToken(LParenLoc)); 94685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 94781d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return BuildObjCEncodeExpression(AtLoc, TInfo, RParenLoc); 94885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 94985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 950f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCSelectorExpression(Selector Sel, 951f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 952f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation SelLoc, 953f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 954f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 9551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ObjCMethodDecl *Method = LookupInstanceMethodInGlobalPool(Sel, 9566b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LParenLoc, RParenLoc), false, false); 9577ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian if (!Method) 9587ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 9597ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian SourceRange(LParenLoc, RParenLoc)); 9607ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian if (!Method) 9617ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian Diag(SelLoc, diag::warn_undeclared_selector) << Sel; 9624c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian 9634c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian if (!Method || 9644c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian Method->getImplementationControl() != ObjCMethodDecl::Optional) { 9654c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian llvm::DenseMap<Selector, SourceLocation>::iterator Pos 9664c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian = ReferencedSelectors.find(Sel); 9674c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian if (Pos == ReferencedSelectors.end()) 9684c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian ReferencedSelectors.insert(std::make_pair(Sel, SelLoc)); 9694c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian } 9703fe104154dd2e8ffb351142d74f308938b5c99bfFariborz Jahanian 971f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from using @selector for 972f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount. 9734e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 974f85e193739c953358c865005855253af4f68a497John McCall switch (Sel.getMethodFamily()) { 975f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 976f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 977f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 978f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 979f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 980f85e193739c953358c865005855253af4f68a497John McCall Diag(AtLoc, diag::err_arc_illegal_selector) << 981f85e193739c953358c865005855253af4f68a497John McCall Sel << SourceRange(LParenLoc, RParenLoc); 982f85e193739c953358c865005855253af4f68a497John McCall break; 983f85e193739c953358c865005855253af4f68a497John McCall 984f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 985f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 986f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 98780cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 988f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 989f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 990f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 991f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 9929670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 993f85e193739c953358c865005855253af4f68a497John McCall break; 994f85e193739c953358c865005855253af4f68a497John McCall } 995f85e193739c953358c865005855253af4f68a497John McCall } 996a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCSelType(); 9976d5a1c28593443f3973ef38f8fa042d59182412dDaniel Dunbar return new (Context) ObjCSelectorExpr(Ty, Sel, AtLoc, RParenLoc); 99885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 99985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1000f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCProtocolExpression(IdentifierInfo *ProtocolId, 1001f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 1002f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation ProtoLoc, 1003f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 1004f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 1005c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor ObjCProtocolDecl* PDecl = LookupProtocol(ProtocolId, ProtoLoc); 100685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner if (!PDecl) { 10073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner Diag(ProtoLoc, diag::err_undeclared_protocol) << ProtocolId; 100885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 100985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 10101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1011a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCProtoType(); 1012a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (Ty.isNull()) 101385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 101414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 1015a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner return new (Context) ObjCProtocolExpr(Ty, PDecl, AtLoc, RParenLoc); 101685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 101785a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 101826743b20e4a8c2a986e6453f0c38beba0afef633John McCall/// Try to capture an implicit reference to 'self'. 1019b942cb24a060435b18fef5b43eb33d77afc0d03aEli FriedmanObjCMethodDecl *Sema::tryCaptureObjCSelf(SourceLocation Loc) { 1020b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman DeclContext *DC = getFunctionLevelDeclContext(); 102126743b20e4a8c2a986e6453f0c38beba0afef633John McCall 102226743b20e4a8c2a986e6453f0c38beba0afef633John McCall // If we're not in an ObjC method, error out. Note that, unlike the 102326743b20e4a8c2a986e6453f0c38beba0afef633John McCall // C++ case, we don't require an instance method --- class methods 102426743b20e4a8c2a986e6453f0c38beba0afef633John McCall // still have a 'self', and we really do still need to capture it! 102526743b20e4a8c2a986e6453f0c38beba0afef633John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(DC); 102626743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (!method) 102726743b20e4a8c2a986e6453f0c38beba0afef633John McCall return 0; 102826743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1029999713eea940f4e087cc3ac878689c5c5c7a7225Douglas Gregor tryCaptureVariable(method->getSelfDecl(), Loc); 103026743b20e4a8c2a986e6453f0c38beba0afef633John McCall 103126743b20e4a8c2a986e6453f0c38beba0afef633John McCall return method; 103226743b20e4a8c2a986e6453f0c38beba0afef633John McCall} 103326743b20e4a8c2a986e6453f0c38beba0afef633John McCall 10345c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregorstatic QualType stripObjCInstanceType(ASTContext &Context, QualType T) { 10355c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor if (T == Context.getObjCInstanceType()) 10365c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return Context.getObjCIdType(); 10375c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 10385c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return T; 10395c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor} 10405c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 1041926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas GregorQualType Sema::getMessageSendResultType(QualType ReceiverType, 1042926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ObjCMethodDecl *Method, 1043926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage) { 1044926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor assert(Method && "Must have a method"); 1045926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1046926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Method->getSendResultType(); 1047926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1048926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // If a method has a related return type: 1049926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the method found is an instance method, but the message send 1050926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // was a class message send, T is the declared return type of the method 1051926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // found 1052926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Method->isInstanceMethod() && isClassMessage) 10535c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1054926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1055926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is super, T is a pointer to the class of the 1056926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // enclosing method definition 1057926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (isSuperMessage) { 1058926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCMethodDecl *CurMethod = getCurMethodDecl()) 1059926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCInterfaceDecl *Class = CurMethod->getClassInterface()) 1060926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType( 1061926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(Class)); 1062926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor } 1063926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1064926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is the name of a class U, T is a pointer to U 1065926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->getAs<ObjCInterfaceType>() || 1066926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedInterfaceType()) 1067926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType(ReceiverType); 1068926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is of type Class or qualified Class type, 1069926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // T is the declared return type of the method. 1070926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->isObjCClassType() || 1071926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedClassType()) 10725c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1073926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1074926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is id, qualified id, Class, or qualified Class, T 1075926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // is the receiver type, otherwise 1076926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - T is the type of the receiver expression. 1077926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return ReceiverType; 1078926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 1079926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1080926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorvoid Sema::EmitRelatedResultTypeNote(const Expr *E) { 1081926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor E = E->IgnoreParenImpCasts(); 1082926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMessageExpr *MsgSend = dyn_cast<ObjCMessageExpr>(E); 1083926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!MsgSend) 1084926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1085926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1086926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMethodDecl *Method = MsgSend->getMethodDecl(); 1087926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method) 1088926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1089926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1090926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1091926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1092926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1093926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Context.hasSameUnqualifiedType(Method->getResultType() 1094926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor .getNonReferenceType(), 1095926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor MsgSend->getType())) 1096926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1097926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1098e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor if (!Context.hasSameUnqualifiedType(Method->getResultType(), 1099e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Context.getObjCInstanceType())) 1100e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return; 1101e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 1102926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Diag(Method->getLocation(), diag::note_related_result_type_inferred) 1103926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << Method->isInstanceMethod() << Method->getSelector() 1104926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << MsgSend->getType(); 1105926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 110626743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1107926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorbool Sema::CheckMessageArgumentTypes(QualType ReceiverType, 1108926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Expr **Args, unsigned NumArgs, 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Selector Sel, ObjCMethodDecl *Method, 1110926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage, 1111637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar SourceLocation lbrac, SourceLocation rbrac, 1112f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType &ReturnType, ExprValueKind &VK) { 1113637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar if (!Method) { 11146660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar // Apply default argument promotion as for (C99 6.5.2.2p6). 111592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor for (unsigned i = 0; i != NumArgs; i++) { 111692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 111792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 111892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1119429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultArgumentPromotion(Args[i]); 1120429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1121429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return true; 1122429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Args[i] = Result.take(); 112392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 11246660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar 1125f85e193739c953358c865005855253af4f68a497John McCall unsigned DiagID; 11264e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1127f85e193739c953358c865005855253af4f68a497John McCall DiagID = diag::err_arc_method_not_found; 1128f85e193739c953358c865005855253af4f68a497John McCall else 1129f85e193739c953358c865005855253af4f68a497John McCall DiagID = isClassMessage ? diag::warn_class_method_not_found 1130f85e193739c953358c865005855253af4f68a497John McCall : diag::warn_inst_method_not_found; 11314e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().DebuggerSupport) 1132819e74544a326b90d13aa73e6497b187c6545ff5John McCall Diag(lbrac, DiagID) 1133819e74544a326b90d13aa73e6497b187c6545ff5John McCall << Sel << isClassMessage << SourceRange(lbrac, rbrac); 113448218c60d6b53b7880917d1366ee716dec2145caJohn McCall 113548218c60d6b53b7880917d1366ee716dec2145caJohn McCall // In debuggers, we want to use __unknown_anytype for these 113648218c60d6b53b7880917d1366ee716dec2145caJohn McCall // results so that clients can cast them. 11374e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DebuggerSupport) { 113848218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.UnknownAnyTy; 113948218c60d6b53b7880917d1366ee716dec2145caJohn McCall } else { 114048218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.getObjCIdType(); 114148218c60d6b53b7880917d1366ee716dec2145caJohn McCall } 1142f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = VK_RValue; 1143637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar return false; 1144637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar } 11451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1146926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType = getMessageSendResultType(ReceiverType, Method, isClassMessage, 1147926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor isSuperMessage); 1148f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = Expr::getValueKindForType(Method->getResultType()); 11491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 115091e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar unsigned NumNamedArgs = Sel.getNumArgs(); 11514f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // Method might have more arguments than selector indicates. This is due 11524f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // to addition of c-style arguments in method. 11534f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (Method->param_size() > Sel.getNumArgs()) 11544f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian NumNamedArgs = Method->param_size(); 11554f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // FIXME. This need be cleaned up. 11564f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (NumArgs < NumNamedArgs) { 1157f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Diag(lbrac, diag::err_typecheck_call_too_few_args) 1158f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall << 2 << NumNamedArgs << NumArgs; 11594f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian return false; 11604f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian } 116191e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 1162312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner bool IsError = false; 116391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar for (unsigned i = 0; i < NumNamedArgs; i++) { 116492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // We can't do any type-checking on a type-dependent argument. 116592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 116692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 116792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 116885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner Expr *argExpr = Args[i]; 116992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 11705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ParmVarDecl *param = Method->param_begin()[i]; 117185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner assert(argExpr && "CheckMessageArgumentTypes(): missing expression"); 11721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Strip the unbridged-cast placeholder expression off unless it's 11745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // a consumed argument. 11755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (argExpr->hasPlaceholderType(BuiltinType::ARCUnbridgedCast) && 11765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall !param->hasAttr<CFConsumedAttr>()) 11775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall argExpr = stripARCUnbridgedCast(argExpr); 11785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 1179688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (RequireCompleteType(argExpr->getSourceRange().getBegin(), 11805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param->getType(), 1181d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_call_incomplete_argument, argExpr)) 1182688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor return true; 1183688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor 1184745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 11855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param); 11863fa5cae9b3812cab9fab6c042c3329bb70a3d046John McCall ExprResult ArgE = PerformCopyInitialization(Entity, lbrac, Owned(argExpr)); 1187688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (ArgE.isInvalid()) 1188688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor IsError = true; 1189688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor else 1190688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor Args[i] = ArgE.takeAs<Expr>(); 119185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 119291e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 119391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Promote additional arguments to variadic methods. 119491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (Method->isVariadic()) { 119592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor for (unsigned i = NumNamedArgs; i < NumArgs; ++i) { 119692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 119792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 119892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1199d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose ExprResult Arg = DefaultVariadicArgumentPromotion(Args[i], VariadicMethod, 1200d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose 0); 1201429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley IsError |= Arg.isInvalid(); 1202429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Args[i] = Arg.take(); 120392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 120491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } else { 120591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Check for extra arguments to non-variadic methods. 120691e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (NumArgs != NumNamedArgs) { 12071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Args[NumNamedArgs]->getLocStart(), 1208fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner diag::err_typecheck_call_too_many_args) 1209ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << 2 /*method*/ << NumNamedArgs << NumArgs 1210ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << Method->getSourceRange() 1211fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << SourceRange(Args[NumNamedArgs]->getLocStart(), 1212fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner Args[NumArgs-1]->getLocEnd()); 121391e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 121491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 121591e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 12162725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor DiagnoseSentinelCalls(Method, lbrac, Args, NumArgs); 121729c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 121829c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas // Do additional checkings on method. 121929c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas IsError |= CheckObjCMethodCall(Method, lbrac, Args, NumArgs); 122029c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 1221312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner return IsError; 122285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 122385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1224c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregorbool Sema::isSelfExpr(Expr *receiver) { 1225f2d74cc083e1a83838acf99d2e1ca260d1c54742Fariborz Jahanian // 'self' is objc 'self' in an objc method only. 12264b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMethodDecl *method = 12274b9c2d235fb9449e249d74f48ecfec601650de93John McCall dyn_cast<ObjCMethodDecl>(CurContext->getNonClosureAncestor()); 12284b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!method) return false; 12294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1230f85e193739c953358c865005855253af4f68a497John McCall receiver = receiver->IgnoreParenLValueCasts(); 1231f85e193739c953358c865005855253af4f68a497John McCall if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(receiver)) 12324b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (DRE->getDecl() == method->getSelfDecl()) 1233c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return true; 1234c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return false; 12356b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff} 12366b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff 1237f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff// Helper method for ActOnClassMethod/ActOnInstanceMethod. 1238f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff// Will search "local" class/category implementations for a method decl. 1239175ba1e8180083927aabd7cc8137baa16be75646Fariborz Jahanian// If failed, then we search in class's root for an instance method. 1240f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff// Returns 0 if no method is found. 12415609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve NaroffObjCMethodDecl *Sema::LookupPrivateClassMethod(Selector Sel, 1242f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff ObjCInterfaceDecl *ClassDecl) { 1243f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff ObjCMethodDecl *Method = 0; 12445609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // lookup in class and all superclasses 12455609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff while (ClassDecl && !Method) { 124687018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 124717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Method = ImpDecl->getClassMethod(Sel); 12481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12495609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // Look through local category implementations associated with the class. 12501cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Method) 12511cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Method = ClassDecl->getCategoryClassMethod(Sel); 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12535609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // Before we give up, check if the selector is an instance method. 12545609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // But only in the root. This matches gcc's behaviour and what the 12555609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // runtime expects. 12565609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff if (!Method && !ClassDecl->getSuperClass()) { 125717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Method = ClassDecl->lookupInstanceMethod(Sel); 12581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Look through local category implementations associated 12595609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // with the root class. 12601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Method) 12615609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff Method = LookupPrivateInstanceMethod(Sel, ClassDecl); 1262f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff } 12631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12645609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ClassDecl = ClassDecl->getSuperClass(); 1265f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff } 12665609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff return Method; 12675609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff} 12685609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff 12695609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve NaroffObjCMethodDecl *Sema::LookupPrivateInstanceMethod(Selector Sel, 12705609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ObjCInterfaceDecl *ClassDecl) { 12712e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor if (!ClassDecl->hasDefinition()) 12722e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor return 0; 12732e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor 12745609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ObjCMethodDecl *Method = 0; 12755609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff while (ClassDecl && !Method) { 12765609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // If we have implementations in scope, check "private" methods. 127787018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 127817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Method = ImpDecl->getInstanceMethod(Sel); 12791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12805609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff // Look through local category implementations associated with the class. 12811cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Method) 12821cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Method = ClassDecl->getCategoryInstanceMethod(Sel); 12835609ec04ed9a4fd58c3203d210cf32e9283feb5eSteve Naroff ClassDecl = ClassDecl->getSuperClass(); 1284175ba1e8180083927aabd7cc8137baa16be75646Fariborz Jahanian } 1285f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff return Method; 1286f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff} 1287f1afaf6fe2d94ab265299853f288b676694f7554Steve Naroff 12883c3b7f90a863af43fa63043d396553ecf205351cJohn McCall/// LookupMethodInType - Look up a method in an ObjCObjectType. 12893c3b7f90a863af43fa63043d396553ecf205351cJohn McCallObjCMethodDecl *Sema::LookupMethodInObjectType(Selector sel, QualType type, 12903c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isInstance) { 12913c3b7f90a863af43fa63043d396553ecf205351cJohn McCall const ObjCObjectType *objType = type->castAs<ObjCObjectType>(); 12923c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCInterfaceDecl *iface = objType->getInterface()) { 12933c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Look it up in the main interface (and categories, etc.) 12943c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = iface->lookupMethod(sel, isInstance)) 12953c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 12963c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 12973c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Okay, look for "private" methods declared in any 12983c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // @implementations we've seen. 12993c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (isInstance) { 13003c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = LookupPrivateInstanceMethod(sel, iface)) 13013c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 13023c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } else { 13033c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = LookupPrivateClassMethod(sel, iface)) 13043c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 13053c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 13063c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 13073c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 13083c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Check qualifiers. 13093c3b7f90a863af43fa63043d396553ecf205351cJohn McCall for (ObjCObjectType::qual_iterator 13103c3b7f90a863af43fa63043d396553ecf205351cJohn McCall i = objType->qual_begin(), e = objType->qual_end(); i != e; ++i) 13113c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = (*i)->lookupMethod(sel, isInstance)) 13123c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 13133c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 13143c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return 0; 13153c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 13163c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 131761478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// LookupMethodInQualifiedType - Lookups up a method in protocol qualifier 131861478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// list of a qualified objective pointer type. 131961478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz JahanianObjCMethodDecl *Sema::LookupMethodInQualifiedType(Selector Sel, 132061478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian const ObjCObjectPointerType *OPT, 132161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian bool Instance) 132261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian{ 132361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian ObjCMethodDecl *MD = 0; 132461478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 132561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian E = OPT->qual_end(); I != E; ++I) { 132661478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian ObjCProtocolDecl *PROTO = (*I); 132761478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian if ((MD = PROTO->lookupMethod(Sel, Instance))) { 132861478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return MD; 132961478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 133061478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 133161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return 0; 133261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian} 133361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian 13349879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanianstatic void DiagnoseARCUseOfWeakReceiver(Sema &S, Expr *Receiver) { 13359879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (!Receiver) 1336289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian return; 1337289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 13389879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian Expr *RExpr = Receiver->IgnoreParenImpCasts(); 13399879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian SourceLocation Loc = RExpr->getLocStart(); 13409879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian QualType T = RExpr->getType(); 13419879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian ObjCPropertyDecl *PDecl = 0; 13429879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian ObjCMethodDecl *GDecl = 0; 13439879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PseudoObjectExpr *POE = dyn_cast<PseudoObjectExpr>(RExpr)) { 13449879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian RExpr = POE->getSyntacticForm(); 13459879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (ObjCPropertyRefExpr *PRE = dyn_cast<ObjCPropertyRefExpr>(RExpr)) { 13469879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PRE->isImplicitProperty()) { 13479879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian GDecl = PRE->getImplicitPropertyGetter(); 13489879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (GDecl) { 13499879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian T = GDecl->getResultType(); 13509879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13519879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13529879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian else { 13539879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian PDecl = PRE->getExplicitProperty(); 13549879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl) { 13559879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian T = PDecl->getType(); 13569879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13579879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 1358289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian } 13599879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 13609879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian 13619879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (T.getObjCLifetime() == Qualifiers::OCL_Weak) { 13629879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(Loc, diag::warn_receiver_is_weak) 13639879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian << ((!PDecl && !GDecl) ? 0 : (PDecl ? 1 : 2)); 13649879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl) 13659879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(PDecl->getLocation(), diag::note_property_declare); 13669879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian else if (GDecl) 13679879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(GDecl->getLocation(), diag::note_method_declared_at) << GDecl; 1368289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian return; 1369289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian } 1370289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 13719879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl && 13729879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian (PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_weak)) { 13739879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(Loc, diag::warn_receiver_is_weak) << 1; 13749879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(PDecl->getLocation(), diag::note_property_declare); 13759879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 1376289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian} 1377289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 13787f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// HandleExprPropertyRefExpr - Handle foo.bar where foo is a pointer to an 13797f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// objective C interface. This is a property reference expression. 138060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 13817f81652f97a69ae8b514893a69c0245253687e55Chris LattnerHandleExprPropertyRefExpr(const ObjCObjectPointerType *OPT, 13826326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Expr *BaseExpr, SourceLocation OpLoc, 13836326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian DeclarationName MemberName, 13848ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation MemberLoc, 13858ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation SuperLoc, QualType SuperType, 13868ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian bool Super) { 13877f81652f97a69ae8b514893a69c0245253687e55Chris Lattner const ObjCInterfaceType *IFaceT = OPT->getInterfaceType(); 13887f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCInterfaceDecl *IFace = IFaceT->getDecl(); 1389109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor 1390109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor if (MemberName.getNameKind() != DeclarationName::Identifier) { 1391109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor Diag(MemberLoc, diag::err_invalid_property_name) 1392109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor << MemberName << QualType(OPT, 0); 1393109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor return ExprError(); 1394109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor } 1395109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor 13967f81652f97a69ae8b514893a69c0245253687e55Chris Lattner IdentifierInfo *Member = MemberName.getAsIdentifierInfo(); 1397b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange BaseRange = Super? SourceRange(SuperLoc) 1398b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : BaseExpr->getSourceRange(); 1399b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OPT->getPointeeType(), 1400d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_property_not_found_forward_class, 1401d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor MemberName, BaseRange)) 14028b1aba495744bea7093899a65f08c3987263061cFariborz Jahanian return ExprError(); 1403b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 14047f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Search for a declared property first. 14057f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (ObjCPropertyDecl *PD = IFace->FindPropertyDeclaration(Member)) { 14067f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 14077f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 14087f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14098ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 14103c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, 1411f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, OK_ObjCProperty, 14128ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, 14138ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType)); 14148ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 14153c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, 1416f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, OK_ObjCProperty, 14178ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, BaseExpr)); 14187f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14197f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check protocols on qualified interfaces. 14207f81652f97a69ae8b514893a69c0245253687e55Chris Lattner for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 14217f81652f97a69ae8b514893a69c0245253687e55Chris Lattner E = OPT->qual_end(); I != E; ++I) 14227f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (ObjCPropertyDecl *PD = (*I)->FindPropertyDeclaration(Member)) { 14237f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 14247f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 14257f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 1426289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 14278ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 14283c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, 14293c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 1430f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, 1431f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OK_ObjCProperty, 1432f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall MemberLoc, 1433f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SuperLoc, SuperType)); 14348ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 14353c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(PD, 14363c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 1437f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, 1438f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OK_ObjCProperty, 14398ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian MemberLoc, 14408ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian BaseExpr)); 14417f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14427f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If that failed, look for an "implicit" property by seeing if the nullary 14437f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // selector is implemented. 14447f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14457f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // FIXME: The logic for looking up nullary and unary selectors should be 14467f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // shared with the code in ActOnInstanceMessage. 14477f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14487f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector Sel = PP.getSelectorTable().getNullarySelector(Member); 14497f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Getter = IFace->lookupInstanceMethod(Sel); 145027569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 145127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 145227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Getter) 145327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Getter = LookupMethodInQualifiedType(Sel, OPT, true); 14547f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14557f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, check for 'private' methods. 14567f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Getter) 145774b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Getter = IFace->lookupPrivateMethod(Sel); 14587f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 14597f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Look through local category implementations associated with the class. 14607f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Getter) 14617f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Getter = IFace->getCategoryInstanceMethod(Sel); 14627f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Getter) { 14637f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check if we can reference this property. 14647f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(Getter, MemberLoc)) 14657f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14667f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14677f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If we found a getter then this may be a valid dot-reference, we 14687f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // will look for the matching setter, in case it is needed. 14697f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector SetterSel = 14707f81652f97a69ae8b514893a69c0245253687e55Chris Lattner SelectorTable::constructSetterName(PP.getIdentifierTable(), 14717f81652f97a69ae8b514893a69c0245253687e55Chris Lattner PP.getSelectorTable(), Member); 14727f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Setter = IFace->lookupInstanceMethod(SetterSel); 147327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 147427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 147527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Setter) 147627569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Setter = LookupMethodInQualifiedType(SetterSel, OPT, true); 147727569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 14787f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Setter) { 14797f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, also check for 'private' 14807f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // methods. 148174b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Setter = IFace->lookupPrivateMethod(SetterSel); 14827f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 14837f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Look through local category implementations associated with the class. 14847f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Setter) 14857f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Setter = IFace->getCategoryInstanceMethod(SetterSel); 148627569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 14877f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Setter && DiagnoseUseOfDecl(Setter, MemberLoc)) 14887f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 14897f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 149099130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Getter || Setter) { 14918ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 149212f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 14933c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 14943c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 149512f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall MemberLoc, 149612f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall SuperLoc, SuperType)); 14978ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 149812f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 14993c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 15003c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 150112f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall MemberLoc, BaseExpr)); 15028ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian 15037f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 15047f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 15057f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Attempt to correct for typos in property names. 15062f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain DeclFilterCCC<ObjCPropertyDecl> Validator; 15072f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (TypoCorrection Corrected = CorrectTypo( 1508d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationNameInfo(MemberName, MemberLoc), LookupOrdinaryName, NULL, 150916e46dd0c284296cea819dfbf67942ecef02894dKaelyn Uhrain NULL, Validator, IFace, false, OPT)) { 15102f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCPropertyDecl *Property = 15112f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Corrected.getCorrectionDeclAs<ObjCPropertyDecl>(); 1512d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationName TypoResult = Corrected.getCorrection(); 15137f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found_suggest) 1514b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner << MemberName << QualType(OPT, 0) << TypoResult 1515b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner << FixItHint::CreateReplacement(MemberLoc, TypoResult.getAsString()); 15167f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Property->getLocation(), diag::note_previous_decl) 15177f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << Property->getDeclName(); 15186326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return HandleExprPropertyRefExpr(OPT, BaseExpr, OpLoc, 15196326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian TypoResult, MemberLoc, 15208ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType, Super); 15217f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 152241aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared; 152341aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (ObjCIvarDecl *Ivar = 152441aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian IFace->lookupInstanceVariable(Member, ClassDeclared)) { 152541aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian QualType T = Ivar->getType(); 152641aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (const ObjCObjectPointerType * OBJPT = 152741aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian T->getAsObjCInterfacePointerType()) { 1528b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OBJPT->getPointeeType(), 1529d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_property_not_as_forward_class, 1530d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor MemberName, BaseExpr)) 1531b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 153241aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 15336326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Diag(MemberLoc, 15346326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian diag::err_ivar_access_using_property_syntax_suggest) 15356326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << MemberName << QualType(OPT, 0) << Ivar->getDeclName() 15366326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << FixItHint::CreateReplacement(OpLoc, "->"); 15376326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return ExprError(); 153841aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 1539b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner 15407f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found) 15417f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << MemberName << QualType(OPT, 0); 154299130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Setter) 15437f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Setter->getLocation(), diag::note_getter_unavailable) 154499130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian << MemberName << BaseExpr->getSourceRange(); 15457f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 15467f81652f97a69ae8b514893a69c0245253687e55Chris Lattner} 15477f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 15487f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 15497f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 155060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 1551eb483eb3ee80300f15d6d13573d82493c2194461Chris LattnerActOnClassPropertyRefExpr(IdentifierInfo &receiverName, 1552eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IdentifierInfo &propertyName, 1553eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation receiverNameLoc, 1554eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation propertyNameLoc) { 15551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1556f06cdae9c68dfc4191fbf6b9e5ea0fd748488d88Douglas Gregor IdentifierInfo *receiverNamePtr = &receiverName; 1557c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor ObjCInterfaceDecl *IFace = getObjCInterfaceDecl(receiverNamePtr, 1558c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor receiverNameLoc); 1559926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1560926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool IsSuper = false; 1561eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (IFace == 0) { 1562eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // If the "receiver" is 'super' in a method, handle it as an expression-like 1563eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // property reference. 156426743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (receiverNamePtr->isStr("super")) { 1565926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor IsSuper = true; 1566926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1567b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman if (ObjCMethodDecl *CurMethod = tryCaptureObjCSelf(receiverNameLoc)) { 1568eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (CurMethod->isInstanceMethod()) { 1569eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner QualType T = 1570eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner Context.getObjCInterfaceType(CurMethod->getClassInterface()); 1571eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner T = Context.getObjCObjectPointerType(T); 1572eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1573eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return HandleExprPropertyRefExpr(T->getAsObjCInterfacePointerType(), 15746326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian /*BaseExpr*/0, 15756326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian SourceLocation()/*OpLoc*/, 15766326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian &propertyName, 15778ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian propertyNameLoc, 15788ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian receiverNameLoc, T, true); 1579eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 1580eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1581eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Otherwise, if this is a class method, try dispatching to our 1582eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // superclass. 1583eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IFace = CurMethod->getClassInterface()->getSuperClass(); 1584eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 158526743b20e4a8c2a986e6453f0c38beba0afef633John McCall } 1586eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1587eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (IFace == 0) { 1588eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner Diag(receiverNameLoc, diag::err_expected_ident_or_lparen); 1589eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return ExprError(); 1590eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 15918149a5786def747af783a9e3c22714bb7ab42b9cFariborz Jahanian } 15921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1593eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Search for a declared property first. 159461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff Selector Sel = PP.getSelectorTable().getNullarySelector(&propertyName); 159517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Getter = IFace->lookupClassMethod(Sel); 159661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 159761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, check for 'private' methods. 159861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Getter) 159961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) 160061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) 160187018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 160217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Getter = ImpDecl->getClassMethod(Sel); 160361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 160461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter) { 160561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // FIXME: refactor/share with ActOnMemberReference(). 160661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Check if we can reference this property. 160761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (DiagnoseUseOfDecl(Getter, propertyNameLoc)) 160861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 160961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 16101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look for the matching setter, in case it is needed. 16121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Selector SetterSel = 16131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SelectorTable::constructSetterName(PP.getIdentifierTable(), 1614fdc92b7877535e6264fe43cfbdc8f01e9b224f81Steve Naroff PP.getSelectorTable(), &propertyName); 16151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Setter = IFace->lookupClassMethod(SetterSel); 161761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Setter) { 161861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, also check for 'private' 161961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // methods. 162061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) 162161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) 162287018775ed689d0a67357cf767747166044b3a27Argyrios Kyrtzidis if (ObjCImplementationDecl *ImpDecl = ClassDecl->getImplementation()) 162317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis Setter = ImpDecl->getClassMethod(SetterSel); 162461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 162561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look through local category implementations associated with the class. 16261cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Setter) 16271cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Setter = IFace->getCategoryClassMethod(SetterSel); 162861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 162961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Setter && DiagnoseUseOfDecl(Setter, propertyNameLoc)) 163061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 163161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 163261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter || Setter) { 1633926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (IsSuper) 1634926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 16353c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 16363c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 1637926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor propertyNameLoc, 1638926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor receiverNameLoc, 1639926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(IFace))); 1640926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 164112f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall return Owned(new (Context) ObjCPropertyRefExpr(Getter, Setter, 16423c3b7f90a863af43fa63043d396553ecf205351cJohn McCall Context.PseudoObjectTy, 16433c3b7f90a863af43fa63043d396553ecf205351cJohn McCall VK_LValue, OK_ObjCProperty, 164412f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall propertyNameLoc, 164512f78a6741a4cb3d904340f8d3d2714568b50e7aJohn McCall receiverNameLoc, IFace)); 164661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 164761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(Diag(propertyNameLoc, diag::err_property_not_found) 164861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff << &propertyName << Context.getObjCInterfaceType(IFace)); 164961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff} 165061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 16512f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainnamespace { 16522f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16532f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainclass ObjCInterfaceOrSuperCCC : public CorrectionCandidateCallback { 16542f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain public: 16552f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC(ObjCMethodDecl *Method) { 16562f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // Determine whether "super" is acceptable in the current context. 16572f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Method && Method->getClassInterface()) 16582f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain WantObjCSuper = Method->getClassInterface()->getSuperClass(); 16592f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 16602f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16612f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain virtual bool ValidateCandidate(const TypoCorrection &candidate) { 16622f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return candidate.getCorrectionDeclAs<ObjCInterfaceDecl>() || 16632f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain candidate.isKeyword("super"); 16642f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 16652f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain}; 16662f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 16672f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain} 16682f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 166947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas GregorSema::ObjCMessageKind Sema::getObjCMessageKind(Scope *S, 16701569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor IdentifierInfo *Name, 167147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor SourceLocation NameLoc, 167247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor bool IsSuper, 16731569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor bool HasTrailingDot, 1674b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &ReceiverType) { 1675b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = ParsedType(); 16761569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 167747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // If the identifier is "super" and there is no trailing dot, we're 167895f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // messaging super. If the identifier is "super" and there is a 167995f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // trailing dot, it's an instance message. 168095f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor if (IsSuper && S->isInObjcMethodScope()) 168195f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor return HasTrailingDot? ObjCInstanceMessage : ObjCSuperMessage; 168247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 168347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupResult Result(*this, Name, NameLoc, LookupOrdinaryName); 168447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupName(Result, S); 168547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 168647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor switch (Result.getResultKind()) { 168747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFound: 1688ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Normal name lookup didn't find anything. If we're in an 1689ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Objective-C method, look for ivars. If we find one, we're done! 169095f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // FIXME: This is a hack. Ivar lookup should be part of normal 169195f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // lookup. 1692ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (ObjCMethodDecl *Method = getCurMethodDecl()) { 1693ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis if (!Method->getClassInterface()) { 1694ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis // Fall back: let the parser try to parse it as an instance message. 1695ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis return ObjCInstanceMessage; 1696ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis } 1697ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis 1698ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ObjCInterfaceDecl *ClassDeclared; 1699ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (Method->getClassInterface()->lookupInstanceVariable(Name, 1700ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ClassDeclared)) 1701ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor return ObjCInstanceMessage; 1702ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor } 170395f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor 170447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Break out; we'll perform typo correction below. 170547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor break; 170647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 170747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFoundInCurrentInstantiation: 170847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundOverloaded: 170947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundUnresolvedValue: 171047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Ambiguous: 171147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Result.suppressDiagnostics(); 171247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 171347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 171447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Found: { 17158348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // If the identifier is a class or not, and there is a trailing dot, 17168348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // it's an instance message. 17178348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian if (HasTrailingDot) 17188348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian return ObjCInstanceMessage; 171947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // We found something. If it's a type, then we have a class 172047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // message. Otherwise, it's an instance message. 172147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor NamedDecl *ND = Result.getFoundDecl(); 17221569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor QualType T; 17231569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(ND)) 17241569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getObjCInterfaceType(Class); 17251569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor else if (TypeDecl *Type = dyn_cast<TypeDecl>(ND)) 17261569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getTypeDeclType(Type); 17271569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor else 17281569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCInstanceMessage; 17291569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 17301569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // We have a class message, and T is the type we're 17311569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // messaging. Build source-location information for it. 17321569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 1733b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = CreateParsedType(T, TSInfo); 17341569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCClassMessage; 173547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 173647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 173747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 17382f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC Validator(getCurMethodDecl()); 1739d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor if (TypoCorrection Corrected = CorrectTypo(Result.getLookupNameInfo(), 1740d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor Result.getLookupKind(), S, NULL, 174116e46dd0c284296cea819dfbf67942ecef02894dKaelyn Uhrain Validator)) { 17422f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Corrected.isKeyword()) { 17432f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we've found the keyword "super" (the only keyword that would be 17442f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // returned by CorrectTypo), this is a send to super. 174547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Diag(NameLoc, diag::err_unknown_receiver_suggest) 1746d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor << Name << Corrected.getCorrection() 1747aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor << FixItHint::CreateReplacement(SourceRange(NameLoc), "super"); 1748aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor return ObjCSuperMessage; 17492f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } else if (ObjCInterfaceDecl *Class = 17502f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Corrected.getCorrectionDeclAs<ObjCInterfaceDecl>()) { 17512f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we found a declaration, correct when it refers to an Objective-C 17522f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // class. 17532f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Diag(NameLoc, diag::err_unknown_receiver_suggest) 17542f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << Name << Corrected.getCorrection() 17552f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << FixItHint::CreateReplacement(SourceRange(NameLoc), 17562f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Class->getNameAsString()); 17572f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain Diag(Class->getLocation(), diag::note_previous_decl) 17582f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain << Corrected.getCorrection(); 17592f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 17602f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain QualType T = Context.getObjCInterfaceType(Class); 17612f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 17622f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ReceiverType = CreateParsedType(T, TSInfo); 17632f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return ObjCClassMessage; 176447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 176547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 176647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 176747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Fall back: let the parser try to parse it as an instance message. 176847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 176947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor} 177061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 177160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnSuperMessage(Scope *S, 17720fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 17730fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 17740fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1775951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 17760fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 17770fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor MultiExprArg Args) { 17782725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Determine whether we are inside a method or not. 1779b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman ObjCMethodDecl *Method = tryCaptureObjCSelf(SuperLoc); 1780f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Method) { 1781f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::err_invalid_receiver_to_message_super); 1782f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return ExprError(); 1783f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor } 17842725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1785f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Class = Method->getClassInterface(); 1786f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Class) { 1787f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::error_no_super_class_message) 1788f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor << Method->getDeclName(); 17892725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 179015faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner } 17912725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1792f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Super = Class->getSuperClass(); 17932725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Super) { 1794f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // The current class does not have a superclass. 1795e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek Diag(SuperLoc, diag::error_root_class_cannot_use_super) 1796e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek << Class->getIdentifier(); 17972725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 17982725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 17992725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1800f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // We are in a method whose class has a superclass, so 'super' 1801f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // is acting as a keyword. 1802f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (Method->isInstanceMethod()) { 18039a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber if (Sel.getMethodFamily() == OMF_dealloc) 18049a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber ObjCShouldCallSuperDealloc = false; 180580cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber if (Sel.getMethodFamily() == OMF_finalize) 180680cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber ObjCShouldCallSuperFinalize = false; 18079a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber 1808f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in an instance method, this is an instance 1809f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // message to the superclass instance. 1810f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor QualType SuperTy = Context.getObjCInterfaceType(Super); 1811f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor SuperTy = Context.getObjCObjectPointerType(SuperTy); 18129ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(0, SuperTy, SuperLoc, 1813f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Sel, /*Method=*/0, 1814951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 18152725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 1816f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor 1817f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in a class method, this is a class message to 1818f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // the superclass. 1819f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return BuildClassMessage(/*ReceiverTypeInfo=*/0, 1820f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Context.getObjCInterfaceType(Super), 1821f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SuperLoc, Sel, /*Method=*/0, 1822951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 18232725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 18242725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1825746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1826746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildClassMessageImplicit(QualType ReceiverType, 1827746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isSuperReceiver, 1828746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 1829746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 1830746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 1831746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 1832746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis TypeSourceInfo *receiverTypeInfo = 0; 1833746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis if (!ReceiverType.isNull()) 1834746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis receiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType); 1835746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1836746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildClassMessage(receiverTypeInfo, ReceiverType, 1837746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/isSuperReceiver ? Loc : SourceLocation(), 1838746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 1839746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 1840746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1841746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 1842746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1843ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void applyCocoaAPICheck(Sema &S, const ObjCMessageExpr *Msg, 1844ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned DiagID, 1845ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool (*refactor)(const ObjCMessageExpr *, 1846ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const NSAPI &, edit::Commit &)) { 1847ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation MsgLoc = Msg->getExprLoc(); 1848ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.Diags.getDiagnosticLevel(DiagID, MsgLoc) == DiagnosticsEngine::Ignored) 1849ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 1850ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1851ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceManager &SM = S.SourceMgr; 1852ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::Commit ECommit(SM, S.LangOpts); 1853ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (refactor(Msg,*S.NSAPIObj, ECommit)) { 1854ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DiagnosticBuilder Builder = S.Diag(MsgLoc, DiagID) 1855ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Msg->getSelector() << Msg->getSourceRange(); 1856ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // FIXME: Don't emit diagnostic at all if fixits are non-commitable. 1857ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ECommit.isCommitable()) 1858ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 1859ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (edit::Commit::edit_iterator 1860ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek I = ECommit.edit_begin(), E = ECommit.edit_end(); I != E; ++I) { 1861ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const edit::Commit::Edit &Edit = *I; 1862ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Edit.Kind) { 1863ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Insert: 1864ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateInsertion(Edit.OrigLoc, 1865ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.Text, 1866ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 1867ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1868ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_InsertFromRange: 1869ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint( 1870ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek FixItHint::CreateInsertionFromRange(Edit.OrigLoc, 1871ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.getInsertFromRange(SM), 1872ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 1873ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1874ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Remove: 1875ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateRemoval(Edit.getFileRange(SM))); 1876ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 1877ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1878ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1879ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 1880ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1881ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 1882ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void checkCocoaAPI(Sema &S, const ObjCMessageExpr *Msg) { 1883ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek applyCocoaAPICheck(S, Msg, diag::warn_objc_redundant_literal_use, 1884ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::rewriteObjCRedundantCallWithLiteral); 1885ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 1886ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 18872725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C class message expression. 18882725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18892725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal class messages and 18902725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// class messages to the superclass. 18912725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 18922725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverTypeInfo Type source information that describes the 18932725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receiver of this message. This may be NULL, in which case we are 18942725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass and \p SuperLoc must be a valid source 18952725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// location. 18962725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 18972725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The type of the object receiving the 18982725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When \p ReceiverTypeInfo is non-NULL, this is the same 18992725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// type as that refers to. For a superclass send, this is the type of 19002725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// the superclass. 19012725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 19022725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 19032725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass message. 19042725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 19052725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 19062725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 1907f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this class message is invoking, if 1908f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 1909f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 19102725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 19112725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 19122725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param RBrac The location of the closing square bracket ']'. 19132725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 19142725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Args The message arguments. 191560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildClassMessage(TypeSourceInfo *ReceiverTypeInfo, 19160fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor QualType ReceiverType, 19170fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 19180fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 19190fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor ObjCMethodDecl *Method, 19200fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1921951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 19220fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 1923746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 1924746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 19250fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc 19269497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange().getBegin(); 19270fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 19280fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 19290fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 19300fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 19310fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 19320fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 193392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (ReceiverType->isDependentType()) { 193492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver type is dependent, we can't type-check anything 193592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 193692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 193792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 193892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 1939f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return Owned(ObjCMessageExpr::Create(Context, ReceiverType, 1940f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, LBracLoc, ReceiverTypeInfo, 1941951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Sel, SelectorLocs, /*Method=*/0, 1942746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs),RBracLoc, 1943746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit)); 194492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 194515faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner 19462725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the class to which we are sending this message. 19472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ObjCInterfaceDecl *Class = 0; 1948c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *ClassType = ReceiverType->getAs<ObjCObjectType>(); 1949c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ClassType || !(Class = ClassType->getInterface())) { 19502725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Diag(Loc, diag::err_invalid_receiver_class_message) 19512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor << ReceiverType; 19522725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19537c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff } 19542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor assert(Class && "We don't know which class we're messaging?"); 195543bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian // objc++ diagnoses during typename annotation. 19564e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) 195743bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian (void)DiagnoseUseOfDecl(Class, Loc); 19582725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the method we are messaging. 1959f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 1960b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange TypeRange 1961b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor = SuperLoc.isValid()? SourceRange(SuperLoc) 1962b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange(); 1963d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, Context.getObjCInterfaceType(Class), 19644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().ObjCAutoRefCount 1965d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor ? diag::err_arc_receiver_forward_class 1966d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : diag::warn_receiver_forward_class), 1967d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor TypeRange)) { 1968f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // A forward class used in messaging is treated as a 'Class' 1969f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 1970f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor SourceRange(LBracLoc, RBracLoc)); 19714e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Method && !getLangOpts().ObjCAutoRefCount) 1972f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Method->getLocation(), diag::note_method_sent_forward_class) 1973f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Method->getDeclName(); 1974f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 1975f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 1976f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = Class->lookupClassMethod(Sel); 19771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1978f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have an implementation in scope, check "private" methods. 1979f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 1980f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupPrivateClassMethod(Sel, Class); 19817c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff 1982f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (Method && DiagnoseUseOfDecl(Method, Loc)) 1983f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 1984f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 19851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19862725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the argument types and determine the result type. 19872725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 1988f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 1989f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 19902725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 19912725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 1992926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (CheckMessageArgumentTypes(ReceiverType, Args, NumArgs, Sel, Method, true, 1993926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor SuperLoc.isValid(), LBracLoc, RBracLoc, 1994926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType, VK)) 19952725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19964df728e368fa1f65ffc57572fed613dcca5b4fe8Ted Kremenek 1997483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor if (Method && !Method->getResultType()->isVoidType() && 1998483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor RequireCompleteType(LBracLoc, Method->getResultType(), 1999483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 2000483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 2001483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor 20022725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr. 2003ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMessageExpr *Result; 20042725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 2005f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 20062d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/false, 2007951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, 20088d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 2009746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 2010ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 2011f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 2012951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverTypeInfo, Sel, SelectorLocs, 20138d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 2014746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 2015ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2016ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2017ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 20182d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 201985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 202085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 20212725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnClassMessage - used for both unary and keyword messages. 202285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// ArgExprs is optional - if it is present, the number of expressions 202385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// is obtained from Sel.getNumArgs(). 202460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnClassMessage(Scope *S, 202577328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor ParsedType Receiver, 202677328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor Selector Sel, 202777328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation LBracLoc, 2028951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 202977328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation RBracLoc, 203077328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor MultiExprArg Args) { 20312725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor TypeSourceInfo *ReceiverTypeInfo; 20322725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReceiverType = GetTypeFromParser(Receiver, &ReceiverTypeInfo); 20332725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (ReceiverType.isNull()) 20342725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 20351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!ReceiverTypeInfo) 20382725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType, LBracLoc); 20391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return BuildClassMessage(ReceiverTypeInfo, ReceiverType, 2041f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor /*SuperLoc=*/SourceLocation(), Sel, /*Method=*/0, 2042951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 20432725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 204487d3ef08d892df8264bd51adb6ddd4a22422cd29Steve Naroff 2045746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildInstanceMessageImplicit(Expr *Receiver, 2046746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis QualType ReceiverType, 2047746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 2048746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 2049746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 2050746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 2051746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildInstanceMessage(Receiver, ReceiverType, 2052746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/!Receiver ? Loc : SourceLocation(), 2053746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 2054746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 2055746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 2056746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 20572725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C instance message expression. 20582725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20592725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal instance messages and 20602725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// instance messages to the superclass instance. 20612725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20622725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Receiver The expression that computes the object that will 20632725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receive this message. This may be empty, in which case we are 20642725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass instance and \p SuperLoc must be a valid 20652725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// source location. 20662725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20672725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The (static) type of the object receiving the 20682725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When a \p Receiver expression is provided, this is the 20692725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// same type as that expression. For a superclass instance send, this 20702725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// is a pointer to the type of the superclass. 20712725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20722725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 20732725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass instance message. 20742725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20752725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 20762725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2077f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this instance message is invoking, if 2078f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 2079f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 20802725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 20812725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20822725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param RBrac The location of the closing square bracket ']'. 20832725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20842725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Args The message arguments. 208560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildInstanceMessage(Expr *Receiver, 2086f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis QualType ReceiverType, 2087f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation SuperLoc, 2088f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Selector Sel, 2089f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis ObjCMethodDecl *Method, 2090f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation LBracLoc, 2091951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 2092f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation RBracLoc, 2093746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 2094746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 20950fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor // The location of the receiver. 20960fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc : Receiver->getLocStart(); 20970fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 20980fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 20990fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 21000fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 21010fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 21020fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 21030fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 21042725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If we have a receiver expression, perform appropriate promotions 21052725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // and determine receiver type. 21062725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (Receiver) { 21075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (Receiver->hasPlaceholderType()) { 2108f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor ExprResult Result; 2109f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Receiver->getType() == Context.UnknownAnyTy) 2110f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = forceUnknownAnyToType(Receiver, Context.getObjCIdType()); 2111f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor else 2112f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = CheckPlaceholderExpr(Receiver); 2113f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Result.isInvalid()) return ExprError(); 2114f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Receiver = Result.take(); 21155acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 21165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 211792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Receiver->isTypeDependent()) { 211892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver is type-dependent, we can't type-check anything 211992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 212092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 212192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 212292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 212392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor return Owned(ObjCMessageExpr::Create(Context, Context.DependentTy, 2124f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, LBracLoc, Receiver, Sel, 2125951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SelectorLocs, /*Method=*/0, 21268d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis makeArrayRef(Args, NumArgs), 2127746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit)); 212892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 212992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 21302725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If necessary, apply function/array conversion to the receiver. 21312725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // C99 6.7.5.3p[7,8]. 2132429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultFunctionArrayLvalueConversion(Receiver); 2133429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 2134429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 2135429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = Result.take(); 21362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverType = Receiver->getType(); 21372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 213804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2139f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2140f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to id. 2141ba551983016ee3eac5421255d2ebe6723e61befbFariborz Jahanian bool receiverIsId = ReceiverType->isObjCIdType(); 21426b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian if (receiverIsId || ReceiverType->isBlockPointerType() || 2143f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor (Receiver && Context.isObjCNSObjectType(Receiver->getType()))) { 2144f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 21456b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 21466b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2147f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 21482725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 2149d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceRange(LBracLoc,RBracLoc), 21506b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2151f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (ReceiverType->isObjCClassType() || 2152f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType->isObjCQualifiedClassType()) { 2153f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to Class. 2154759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // We allow sending a message to a qualified Class ("Class<foo>"), which 2155759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // is ok as long as one of the protocols implements the selector (if not, warn). 2156759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCObjectPointerType *QClassTy 2157759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian = ReceiverType->getAsObjCQualifiedClassType()) { 2158759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // Search protocols for class methods. 2159759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, false); 2160759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2161759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, true); 2162759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // warn if instance method found for a Class message. 2163759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) { 2164759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Diag(Loc, diag::warn_instance_method_on_class_found) 2165759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Method->getSelector() << Sel; 21663306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(Method->getLocation(), diag::note_method_declared_at) 21673306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << Method->getDeclName(); 2168759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 21696b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff } 2170759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } else { 2171759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) { 2172759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) { 2173759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // First check the public methods in the class interface. 2174759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = ClassDecl->lookupClassMethod(Sel); 2175759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian 2176759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) 2177759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupPrivateClassMethod(Sel, ClassDecl); 2178759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2179759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc)) 2180759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian return ExprError(); 2181759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2182759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2183759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If not messaging 'self', look for any factory method named 'Sel'. 2184c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Receiver || !isSelfExpr(Receiver)) { 2185759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 2186759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2187759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2188759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2189759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If no class (factory) method was found, check if an _instance_ 2190759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // method of the same name exists in the root class only. 2191759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupInstanceMethodInGlobalPool(Sel, 21926b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2193759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2194759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) 2195759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCInterfaceDecl *ID = 2196759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext())) { 2197759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ID->getSuperClass()) 2198759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Diag(Loc, diag::warn_root_inst_method_not_found) 2199759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Sel << SourceRange(LBracLoc, RBracLoc); 2200759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2201759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 220204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 220304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 220404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 220504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } else { 2206f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ObjCInterfaceDecl* ClassDecl = 0; 2207f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 2208f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a qualified ID ("id<foo>"), which is ok as 2209f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // long as one of the protocols implements the selector (if not, warn). 2210f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (const ObjCObjectPointerType *QIdTy 2211f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCQualifiedIdType()) { 2212f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocols for instance methods. 221327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, true); 221427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 221527569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, false); 2216f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (const ObjCObjectPointerType *OCIType 2217f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCInterfacePointerType()) { 2218f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a pointer to an interface (an object). 2219f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ClassDecl = OCIType->getInterfaceDecl(); 2220f85e193739c953358c865005855253af4f68a497John McCall 2221b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // Try to complete the type. Under ARC, this is a hard error from which 2222b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // we don't try to recover. 2223b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor const ObjCInterfaceDecl *forwardClass = 0; 2224b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(Loc, OCIType->getPointeeType(), 22254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().ObjCAutoRefCount 2226d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor ? diag::err_arc_receiver_forward_instance 2227d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : diag::warn_receiver_forward_instance, 2228d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Receiver? Receiver->getSourceRange() 2229d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : SourceRange(SuperLoc))) { 22304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 2231b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 2232b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 2233b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor forwardClass = OCIType->getInterfaceDecl(); 22344cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian Diag(Receiver ? Receiver->getLocStart() 22354cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian : SuperLoc, diag::note_receiver_is_id); 22362e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = 0; 22372e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor } else { 22382e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = ClassDecl->lookupInstanceMethod(Sel); 2239f85e193739c953358c865005855253af4f68a497John McCall } 2240f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 224127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 2242f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocol qualifiers. 224327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, OCIType, true); 224427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 2245f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2246f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have implementations in scope, check "private" methods. 2247f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupPrivateInstanceMethod(Sel, ClassDecl); 2248f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 22494e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && getLangOpts().ObjCAutoRefCount) { 2250f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_arc_may_not_respond) 2251f85e193739c953358c865005855253af4f68a497John McCall << OCIType->getPointeeType() << Sel; 2252f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 2253f85e193739c953358c865005855253af4f68a497John McCall } 2254f85e193739c953358c865005855253af4f68a497John McCall 2255c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Method && (!Receiver || !isSelfExpr(Receiver))) { 2256f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we still haven't found a method, look in the global pool. This 2257f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // behavior isn't very desirable, however we need it for GCC 2258f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // compatibility. FIXME: should we deviate?? 2259f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (OCIType->qual_empty()) { 2260f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 2261d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceRange(LBracLoc, RBracLoc)); 22628e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && !forwardClass) 2263f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Loc, diag::warn_maynot_respond) 2264f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << OCIType->getInterfaceDecl()->getIdentifier() << Sel; 2265f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2266f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2267f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 22688e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && DiagnoseUseOfDecl(Method, Loc, forwardClass)) 2269f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 22704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie } else if (!getLangOpts().ObjCAutoRefCount && 2271f85e193739c953358c865005855253af4f68a497John McCall !Context.getObjCIdType().isNull() && 2272f60946222721d9ba3c059563935c17b84703187aDouglas Gregor (ReceiverType->isPointerType() || 2273f60946222721d9ba3c059563935c17b84703187aDouglas Gregor ReceiverType->isIntegerType())) { 2274f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Implicitly convert integers and pointers to 'id' but emit a warning. 2275f85e193739c953358c865005855253af4f68a497John McCall // But not in ARC. 2276f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Loc, diag::warn_bad_receiver_type) 2277f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << ReceiverType 2278f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Receiver->getSourceRange(); 2279f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (ReceiverType->isPointerType()) 2280429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 22811d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK_CPointerToObjCPointerCast).take(); 2282404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall else { 2283404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall // TODO: specialized warning on null receivers? 2284404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall bool IsNull = Receiver->isNullPointerConstant(Context, 2285404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall Expr::NPC_ValueDependentIsNull); 2286d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose CastKind Kind = IsNull ? CK_NullToPointer : CK_IntegralToPointer; 2287429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 2288d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Kind).take(); 2289404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall } 2290f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType = Receiver->getType(); 22910bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall } else { 2292429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult ReceiverRes; 22934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 22940bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall ReceiverRes = PerformContextuallyConvertToObjCPointer(Receiver); 2295429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ReceiverRes.isUsable()) { 2296429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Receiver = ReceiverRes.take(); 2297429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return BuildInstanceMessage(Receiver, 2298429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ReceiverType, 2299429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley SuperLoc, 2300429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Sel, 2301429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Method, 2302429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley LBracLoc, 2303951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SelectorLocs, 2304429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley RBracLoc, 2305429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley move(ArgsIn)); 2306429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } else { 2307429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley // Reject other random receiver types (e.g. structs). 2308429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley Diag(Loc, diag::err_bad_receiver_type) 2309429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley << ReceiverType << Receiver->getSourceRange(); 2310429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 23113ba606199be8056ae83596260bd6fd5872942905Fariborz Jahanian } 2312f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 231304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 2314fe1a553256b46fad3c0a9e9967481bcf571339ecChris Lattner } 23151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23162725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the message arguments. 23172725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 23182725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Expr **Args = reinterpret_cast<Expr **>(ArgsIn.release()); 23192725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 2320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 23212600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian bool ClassMessage = (ReceiverType->isObjCClassType() || 23222600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian ReceiverType->isObjCQualifiedClassType()); 2323926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (CheckMessageArgumentTypes(ReceiverType, Args, NumArgs, Sel, Method, 2324926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ClassMessage, SuperLoc.isValid(), 2325f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall LBracLoc, RBracLoc, ReturnType, VK)) 23262725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 2327da59e09f1fd53350fcd949adbadd8148117f21b2Fariborz Jahanian 2328483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor if (Method && !Method->getResultType()->isVoidType() && 2329483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor RequireCompleteType(LBracLoc, Method->getResultType(), 2330483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 2331483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 233204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2333951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis SourceLocation SelLoc = SelectorLocs.front(); 2334951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis 2335f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from sending messages to 2336f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount explicitly. 23374e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 2338f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodFamily family = 2339f85e193739c953358c865005855253af4f68a497John McCall (Method ? Method->getMethodFamily() : Sel.getMethodFamily()); 2340f85e193739c953358c865005855253af4f68a497John McCall switch (family) { 2341f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 2342f85e193739c953358c865005855253af4f68a497John McCall if (Method) 2343f85e193739c953358c865005855253af4f68a497John McCall checkInitMethod(Method, ReceiverType); 2344f85e193739c953358c865005855253af4f68a497John McCall 2345f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 2346f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 2347f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 234880cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 2349f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 2350f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 2351f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 2352f85e193739c953358c865005855253af4f68a497John McCall break; 2353f85e193739c953358c865005855253af4f68a497John McCall 2354f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 2355f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 2356f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 2357f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 2358f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 2359f85e193739c953358c865005855253af4f68a497John McCall Diag(Loc, diag::err_arc_illegal_explicit_message) 2360951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis << Sel << SelLoc; 2361f85e193739c953358c865005855253af4f68a497John McCall break; 23629670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian 23639670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 23649670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (Method && NumArgs >= 1) { 23659670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (ObjCSelectorExpr *SelExp = dyn_cast<ObjCSelectorExpr>(Args[0])) { 23669670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Selector ArgSel = SelExp->getSelector(); 23679670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodDecl *SelMethod = 23689670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupInstanceMethodInGlobalPool(ArgSel, 23699670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 23709670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod) 23719670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelMethod = 23729670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupFactoryMethodInGlobalPool(ArgSel, 23739670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 23749670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod) { 23759670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodFamily SelFamily = SelMethod->getMethodFamily(); 23769670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian switch (SelFamily) { 23779670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_alloc: 23789670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_copy: 23799670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_mutableCopy: 23809670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_new: 23819670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_self: 23829670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_init: 23839670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // Issue error, unless ns_returns_not_retained. 23849670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod->hasAttr<NSReturnsNotRetainedAttr>()) { 23859670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2386951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 23879670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 23883306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 23893306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 23909670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 23919670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 23929670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian default: 23939670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // +0 call. OK. unless ns_returns_retained. 23949670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod->hasAttr<NSReturnsRetainedAttr>()) { 23959670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2396951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 23979670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 23983306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 23993306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 24009670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24019670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 24029670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24039670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24049670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } else { 24059670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // error (may leak). 2406951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, diag::warn_arc_perform_selector_leaks); 24079670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Diag(Args[0]->getExprLoc(), diag::note_used_here); 24089670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24099670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 24109670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 2411f85e193739c953358c865005855253af4f68a497John McCall } 2412f85e193739c953358c865005855253af4f68a497John McCall } 2413f85e193739c953358c865005855253af4f68a497John McCall 24142725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr instance. 2415f85e193739c953358c865005855253af4f68a497John McCall ObjCMessageExpr *Result; 24162725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 2417f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 24182d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/true, 2419951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, Method, 2420746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2421746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2422ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 2423f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 2424951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Receiver, Sel, SelectorLocs, Method, 2425746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2426746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2427ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2428ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2429ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2430f85e193739c953358c865005855253af4f68a497John McCall 24314e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 24329879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian DiagnoseARCUseOfWeakReceiver(*this, Receiver); 2433878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian 2434f85e193739c953358c865005855253af4f68a497John McCall // In ARC, annotate delegate init calls. 2435f85e193739c953358c865005855253af4f68a497John McCall if (Result->getMethodFamily() == OMF_init && 2436c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor (SuperLoc.isValid() || isSelfExpr(Receiver))) { 2437f85e193739c953358c865005855253af4f68a497John McCall // Only consider init calls *directly* in init implementations, 2438f85e193739c953358c865005855253af4f68a497John McCall // not within blocks. 2439f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(CurContext); 2440f85e193739c953358c865005855253af4f68a497John McCall if (method && method->getMethodFamily() == OMF_init) { 2441f85e193739c953358c865005855253af4f68a497John McCall // The implicit assignment to self means we also don't want to 2442f85e193739c953358c865005855253af4f68a497John McCall // consume the result. 2443f85e193739c953358c865005855253af4f68a497John McCall Result->setDelegateInitCall(true); 2444f85e193739c953358c865005855253af4f68a497John McCall return Owned(Result); 2445f85e193739c953358c865005855253af4f68a497John McCall } 2446f85e193739c953358c865005855253af4f68a497John McCall } 2447f85e193739c953358c865005855253af4f68a497John McCall 2448f85e193739c953358c865005855253af4f68a497John McCall // In ARC, check for message sends which are likely to introduce 2449f85e193739c953358c865005855253af4f68a497John McCall // retain cycles. 2450f85e193739c953358c865005855253af4f68a497John McCall checkRetainCycles(Result); 2451f85e193739c953358c865005855253af4f68a497John McCall } 2452f85e193739c953358c865005855253af4f68a497John McCall 24532d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 24542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 24552725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 24562725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnInstanceMessage - used for both unary and keyword messages. 24572725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ArgExprs is optional - if it is present, the number of expressions 24582725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// is obtained from Sel.getNumArgs(). 245960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnInstanceMessage(Scope *S, 246060d7b3a319d84d688752be3870615ac0f111fb16John McCall Expr *Receiver, 246160d7b3a319d84d688752be3870615ac0f111fb16John McCall Selector Sel, 246260d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation LBracLoc, 2463951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 246460d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation RBracLoc, 246560d7b3a319d84d688752be3870615ac0f111fb16John McCall MultiExprArg Args) { 24662725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Receiver) 24672725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 246804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 24699ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(Receiver, Receiver->getType(), 2470f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor /*SuperLoc=*/SourceLocation(), Sel, /*Method=*/0, 2471951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis LBracLoc, SelectorLocs, RBracLoc, move(Args)); 247285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 2473eca7be6b7ebd93682eeaab2c71d59f2995dacdccChris Lattner 2474f85e193739c953358c865005855253af4f68a497John McCallenum ARCConversionTypeClass { 24752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// int, void, struct A 2476f85e193739c953358c865005855253af4f68a497John McCall ACTC_none, 24772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id, void (^)() 2479f85e193739c953358c865005855253af4f68a497John McCall ACTC_retainable, 24802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id*, id***, void (^*)(), 24822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_indirectRetainable, 24832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// void* might be a normal C type, or it might a CF type. 24852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_voidPtr, 24862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 24872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// struct A* 24882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_coreFoundation 2489f85e193739c953358c865005855253af4f68a497John McCall}; 24902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyRetainable(ARCConversionTypeClass ACTC) { 24912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return (ACTC == ACTC_retainable || 24922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation || 24932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr); 24942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 24952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyCLike(ARCConversionTypeClass ACTC) { 24962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC == ACTC_none || 24972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr || 24982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation; 24992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 25002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2501f85e193739c953358c865005855253af4f68a497John McCallstatic ARCConversionTypeClass classifyTypeForARCConversion(QualType type) { 25022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall bool isIndirect = false; 2503f85e193739c953358c865005855253af4f68a497John McCall 2504f85e193739c953358c865005855253af4f68a497John McCall // Ignore an outermost reference type. 25052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = type->getAs<ReferenceType>()) { 2506f85e193739c953358c865005855253af4f68a497John McCall type = ref->getPointeeType(); 25072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 25082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2509f85e193739c953358c865005855253af4f68a497John McCall 2510f85e193739c953358c865005855253af4f68a497John McCall // Drill through pointers and arrays recursively. 2511f85e193739c953358c865005855253af4f68a497John McCall while (true) { 2512f85e193739c953358c865005855253af4f68a497John McCall if (const PointerType *ptr = type->getAs<PointerType>()) { 2513f85e193739c953358c865005855253af4f68a497John McCall type = ptr->getPointeeType(); 25142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // The first level of pointer may be the innermost pointer on a CF type. 25162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isIndirect) { 25172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isVoidType()) return ACTC_voidPtr; 25182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isRecordType()) return ACTC_coreFoundation; 25192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2520f85e193739c953358c865005855253af4f68a497John McCall } else if (const ArrayType *array = type->getAsArrayTypeUnsafe()) { 2521f85e193739c953358c865005855253af4f68a497John McCall type = QualType(array->getElementType()->getBaseElementTypeUnsafe(), 0); 2522f85e193739c953358c865005855253af4f68a497John McCall } else { 2523f85e193739c953358c865005855253af4f68a497John McCall break; 2524f85e193739c953358c865005855253af4f68a497John McCall } 25252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 2526f85e193739c953358c865005855253af4f68a497John McCall } 2527f85e193739c953358c865005855253af4f68a497John McCall 25282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isIndirect) { 25292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 25302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_indirectRetainable; 25312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 25322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 25352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_retainable; 25362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 2538f85e193739c953358c865005855253af4f68a497John McCall} 2539f85e193739c953358c865005855253af4f68a497John McCall 2540f85e193739c953358c865005855253af4f68a497John McCallnamespace { 25412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A result from the cast checker. 25422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall enum ACCResult { 25432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Cannot be casted. 25442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_invalid, 25452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be safely retained or not retained. 25472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_bottom, 25482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +0. 25502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusZero, 25512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +1. 25532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusOne 25542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 25552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult merge(ACCResult left, ACCResult right) { 25562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == right) return left; 25572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_bottom) return right; 25582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (right == ACC_bottom) return left; 25592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A checker which white-lists certain expressions whose conversion 25632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// to or from retainable type would otherwise be forbidden in ARC. 25642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall class ARCCastChecker : public StmtVisitor<ARCCastChecker, ACCResult> { 25652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall typedef StmtVisitor<ARCCastChecker, ACCResult> super; 25662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2567f85e193739c953358c865005855253af4f68a497John McCall ASTContext &Context; 25682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass SourceClass; 25692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass TargetClass; 25702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25712cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall static bool isCFType(QualType type) { 25722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Someday this can use ns_bridged. For now, it has to do this. 25732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return type->isCARCBridgableType(); 2574f85e193739c953358c865005855253af4f68a497John McCall } 25752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall public: 25772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCCastChecker(ASTContext &Context, ARCConversionTypeClass source, 25782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass target) 25792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall : Context(Context), SourceClass(source), TargetClass(target) {} 25802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall using super::Visit; 25822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult Visit(Expr *e) { 25832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::Visit(e->IgnoreParens()); 2584f85e193739c953358c865005855253af4f68a497John McCall } 25852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmt(Stmt *s) { 25872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Null pointer constants can be casted however you please. 25912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitExpr(Expr *e) { 25922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNotNull)) 25932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 25942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 25952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 25962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 25972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Objective-C string literals can be safely casted. 25982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCStringLiteral(ObjCStringLiteral *e) { 25992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If we're casting to any retainable type, go ahead. Global 26002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // strings are immune to retains, so this is bottom. 26012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass)) return ACC_bottom; 26022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2604f85e193739c953358c865005855253af4f68a497John McCall } 26052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through certain implicit and explicit casts. 26072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCastExpr(CastExpr *e) { 2608f85e193739c953358c865005855253af4f68a497John McCall switch (e->getCastKind()) { 2609f85e193739c953358c865005855253af4f68a497John McCall case CK_NullToPointer: 26102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2612f85e193739c953358c865005855253af4f68a497John McCall case CK_NoOp: 2613f85e193739c953358c865005855253af4f68a497John McCall case CK_LValueToRValue: 2614f85e193739c953358c865005855253af4f68a497John McCall case CK_BitCast: 26151d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_CPointerToObjCPointerCast: 26161d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_BlockPointerToObjCPointerCast: 2617f85e193739c953358c865005855253af4f68a497John McCall case CK_AnyPointerToBlockPointerCast: 2618f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 26192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2620f85e193739c953358c865005855253af4f68a497John McCall default: 26212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2622f85e193739c953358c865005855253af4f68a497John McCall } 2623f85e193739c953358c865005855253af4f68a497John McCall } 26242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through unary extension. 26262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitUnaryExtension(UnaryOperator *e) { 2627f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 2628f85e193739c953358c865005855253af4f68a497John McCall } 26292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Ignore the LHS of a comma operator. 26312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitBinComma(BinaryOperator *e) { 2632f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getRHS()); 2633f85e193739c953358c865005855253af4f68a497John McCall } 26342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Conditional operators are okay if both sides are okay. 26362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitConditionalOperator(ConditionalOperator *e) { 26372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult left = Visit(e->getTrueExpr()); 26382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_invalid) return ACC_invalid; 26392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return merge(left, Visit(e->getFalseExpr())); 2640f85e193739c953358c865005855253af4f68a497John McCall } 26412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26424b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Look through pseudo-objects. 26434b9c2d235fb9449e249d74f48ecfec601650de93John McCall ACCResult VisitPseudoObjectExpr(PseudoObjectExpr *e) { 26444b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If we're getting here, we should always have a result. 26454b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Visit(e->getResultExpr()); 26464b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 26474b9c2d235fb9449e249d74f48ecfec601650de93John McCall 26482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Statement expressions are okay if their result expression is okay. 26492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmtExpr(StmtExpr *e) { 2650f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubStmt()->body_back()); 2651f85e193739c953358c865005855253af4f68a497John McCall } 26522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some declaration references are okay. 26542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitDeclRefExpr(DeclRefExpr *e) { 26552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // References to global constants from system headers are okay. 26562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // These are things like 'kCFStringTransformToLatin'. They are 26572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // can also be assumed to be immune to retains. 26582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall VarDecl *var = dyn_cast<VarDecl>(e->getDecl()); 26592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass) && 26602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isAnyRetainable(SourceClass) && 26612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var && 26622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getStorageClass() == SC_Extern && 26632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getType().isConstQualified() && 26642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall Context.getSourceManager().isInSystemHeader(var->getLocation())) { 26652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 26662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 26672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Nothing else. 26692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2670f85e193739c953358c865005855253af4f68a497John McCall } 2671f85e193739c953358c865005855253af4f68a497John McCall 26722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some calls are okay. 26732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCallExpr(CallExpr *e) { 26742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (FunctionDecl *fn = e->getDirectCallee()) 26752cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (ACCResult result = checkCallToFunction(fn)) 26762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return result; 26772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::VisitCallExpr(e); 2679c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 26802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToFunction(FunctionDecl *fn) { 26822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Require a CF*Ref return type. 26832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isCFType(fn->getResultType())) 26842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass)) 26872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 26882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'not retained' attribute. 26902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsNotRetainedAttr>()) 26912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 26922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'retained' attribute, except that for 26942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // now we're not going to permit implicit handling of +1 results, 26952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // because it's a bit frightening. 26962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsRetainedAttr>()) 26972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; // ACC_plusOne if we start accepting this 26982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 26992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Recognize this specific builtin function, which is used by CFSTR. 27002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall unsigned builtinID = fn->getBuiltinID(); 27012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (builtinID == Builtin::BI__builtin___CFStringMakeConstantString) 27022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 27032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, don't do anything implicit with an unaudited function. 27052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!fn->hasAttr<CFAuditedTransferAttr>()) 27062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 27072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, it's +0 unless it follows the create convention. 27092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (ento::coreFoundation::followsCreateRule(fn)) 27102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; // ACC_plusOne if we start accepting this 27112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 27132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCMessageExpr(ObjCMessageExpr *e) { 27162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(e->getMethodDecl()); 27172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *e) { 27202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ObjCMethodDecl *method; 27212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isExplicitProperty()) 27222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getExplicitProperty()->getGetterMethodDecl(); 27232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall else 27242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getImplicitPropertyGetter(); 27252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(method); 27262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToMethod(ObjCMethodDecl *method) { 27292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!method) return ACC_invalid; 27302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Check for message sends to functions returning CF types. We 27322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // just obey the Cocoa conventions with these, even though the 27332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // return type is CF. 27342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass) || !isCFType(method->getResultType())) 27352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 27362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked not-retained, it's +0. 27382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsNotRetainedAttr>()) 27392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 27402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked as returning retained, or its 27422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // selector follows a +1 Cocoa convention, treat it as +1. 27432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsRetainedAttr>()) 27442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 27452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall switch (method->getSelector().getMethodFamily()) { 27472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_alloc: 27482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_copy: 27492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_mutableCopy: 27502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_new: 27512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 27522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall default: 27542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, treat it as +0. 27552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 2756c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 2757af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian } 27582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 27591522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian} 27601522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian 276152b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanianstatic bool 276252b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz JahanianKnownName(Sema &S, const char *name) { 276352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian LookupResult R(S, &S.Context.Idents.get(name), SourceLocation(), 276452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian Sema::LookupOrdinaryName); 276552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian return S.LookupName(R, S.TUScope, false); 276652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian} 276752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 2768ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidisstatic void addFixitForObjCARCConversion(Sema &S, 2769ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder &DiagB, 2770ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Sema::CheckedConversionKind CCK, 2771ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceLocation afterLParen, 2772ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis QualType castType, 2773ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castExpr, 2774ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *bridgeKeyword, 2775ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *CFBridgeName) { 2776ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis // We handle C-style and implicit casts here. 2777ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis switch (CCK) { 2778ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_ImplicitConversion: 2779ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_CStyleCast: 2780ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis break; 2781ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_FunctionalCast: 2782ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_OtherCast: 2783ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 2784ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2785ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 2786ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CFBridgeName) { 2787ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr; 2788ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CStyleCastExpr *CCE = dyn_cast<CStyleCastExpr>(castedE)) 2789ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = CCE->getSubExpr(); 2790ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = castedE->IgnoreImpCasts(); 2791ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 2792ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 2793ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2794ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis CFBridgeName)); 2795ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2796ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis std::string namePlusParen = CFBridgeName; 2797ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis namePlusParen += "("; 2798ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2799ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis namePlusParen)); 2800ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 2801ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 2802ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 2803ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2804ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 2805ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2806ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 2807ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CCK == Sema::CCK_CStyleCast) { 2808ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(afterLParen, bridgeKeyword)); 2809ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2810ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis std::string castCode = "("; 2811ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += bridgeKeyword; 2812ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += castType.getAsString(); 2813ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += ")"; 2814ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr->IgnoreImpCasts(); 2815ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 2816ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 2817ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2818ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 2819ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 2820ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += "("; 2821ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 2822ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 2823ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 2824ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 2825ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 2826ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2827ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2828ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis} 2829ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 28305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallstatic void 28315acb0c98b363400f6ade0ae7250f0102224e806bJohn McCalldiagnoseObjCARCConversion(Sema &S, SourceRange castRange, 28325acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType, ARCConversionTypeClass castACTC, 28335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr, ARCConversionTypeClass exprACTC, 28345acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Sema::CheckedConversionKind CCK) { 28355acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation loc = 28365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall (castRange.isValid() ? castRange.getBegin() : castExpr->getExprLoc()); 28375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28385acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (S.makeUnavailableInSystemHeader(loc, 28395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall "converts between Objective-C and C pointers in -fobjc-arc")) 28405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 28415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28425acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castExprType = castExpr->getType(); 28435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28445acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned srcKind = 0; 28455acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall switch (exprACTC) { 28465acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_none: 28475acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_coreFoundation: 28485acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_voidPtr: 28495acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isPointerType() ? 1 : 0); 28505acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28515acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_retainable: 28525acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isBlockPointerType() ? 2 : 3); 28535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28545acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_indirectRetainable: 28555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = 4; 28565acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 28575acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 28585acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28595acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Check whether this could be fixed with a bridge cast. 28605acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation afterLParen = S.PP.getLocForEndOfToken(castRange.getBegin()); 28615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation noteLoc = afterLParen.isValid() ? afterLParen : loc; 28625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from an ARC type to a CF type. 28645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (castACTC == ACTC_retainable && isAnyRetainable(exprACTC)) { 286552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 28665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 28675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 28685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // of C pointer type 28695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 28705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castType->isBlockPointerType()) // to ObjC|block type 28715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 28725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 28735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 287452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(S, "CFBridgingRelease"); 2875ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2876ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge); 2877ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2878ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge ", 0); 2879ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2880ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2881ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge_transfer) 2882ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis << castExprType << br; 2883ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2884ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge_transfer ", 2885ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis br ? "CFBridgingRelease" : 0); 2886ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 28875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28885acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 28895acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 28905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 28915acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from a CF type to an ARC type. 28925acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC)) { 289352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(S, "CFBridgingRetain"); 28945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 28955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 28965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castExprType->isBlockPointerType()) // of ObjC|block type 28975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 28985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // to C pointer type 28995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 29005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 29015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 29025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 2903ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2904ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge); 2905ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2906ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge ", 0); 2907ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 2908ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis { 2909ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder DiagB = S.Diag(noteLoc, diag::note_arc_bridge_retained) 2910ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis << castType << br; 2911ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 2912ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castType, castExpr, "__bridge_retained ", 2913ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis br ? "CFBridgingRetain" : 0); 2914ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 29155acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 29175acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 29185acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_mismatched_cast) 29205acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << (CCK != Sema::CCK_ImplicitConversion) 29215acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << srcKind << castExprType << castType 29225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange << castExpr->getSourceRange(); 29235acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 29245acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 29255acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallSema::ARCConversionResult 2926f85e193739c953358c865005855253af4f68a497John McCallSema::CheckObjCARCConversion(SourceRange castRange, QualType castType, 2927af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian Expr *&castExpr, CheckedConversionKind CCK) { 2928f85e193739c953358c865005855253af4f68a497John McCall QualType castExprType = castExpr->getType(); 29292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For the purposes of the classification, we assume reference types 29312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // will bind to temporaries. 29322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall QualType effCastType = castType; 29332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = castType->getAs<ReferenceType>()) 29342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall effCastType = ref->getPointeeType(); 2935f85e193739c953358c865005855253af4f68a497John McCall 2936f85e193739c953358c865005855253af4f68a497John McCall ARCConversionTypeClass exprACTC = classifyTypeForARCConversion(castExprType); 29372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass castACTC = classifyTypeForARCConversion(effCastType); 29386d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian if (exprACTC == castACTC) { 29396d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // check for viablity and report error if casting an rvalue to a 29406d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // life-time qualifier. 2941fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if ((castACTC == ACTC_retainable) && 29426d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian (CCK == CCK_CStyleCast || CCK == CCK_OtherCast) && 2943fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castType != castExprType)) { 2944fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian const Type *DT = castType.getTypePtr(); 2945fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QualType QDT = castType; 2946fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // We desugar some types but not others. We ignore those 2947fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // that cannot happen in a cast; i.e. auto, and those which 2948fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // should not be de-sugared; i.e typedef. 2949fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (const ParenType *PT = dyn_cast<ParenType>(DT)) 2950fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = PT->desugar(); 2951fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const TypeOfType *TP = dyn_cast<TypeOfType>(DT)) 2952fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = TP->desugar(); 2953fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const AttributedType *AT = dyn_cast<AttributedType>(DT)) 2954fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = AT->desugar(); 2955fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (QDT != castType && 2956fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT.getObjCLifetime() != Qualifiers::OCL_None) { 2957fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian SourceLocation loc = 2958fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castRange.isValid() ? castRange.getBegin() 2959fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian : castExpr->getExprLoc()); 2960fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian Diag(loc, diag::err_arc_nolifetime_behavior); 2961fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian } 29626d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 29636d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian return ACR_okay; 29646d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 29656d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian 29665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (isAnyCLike(exprACTC) && isAnyCLike(castACTC)) return ACR_okay; 29672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Allow all of these types to be cast to integer types (but not 29692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // vice-versa). 29702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_none && castType->isIntegralType(Context)) 29715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 2972f85e193739c953358c865005855253af4f68a497John McCall 2973f85e193739c953358c865005855253af4f68a497John McCall // Allow casts between pointers to lifetime types (e.g., __strong id*) 2974f85e193739c953358c865005855253af4f68a497John McCall // and pointers to void (e.g., cv void *). Casting from void* to lifetime* 2975f85e193739c953358c865005855253af4f68a497John McCall // must be explicit. 29762cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (exprACTC == ACTC_indirectRetainable && castACTC == ACTC_voidPtr) 29775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_indirectRetainable && exprACTC == ACTC_voidPtr && 29792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CCK != CCK_ImplicitConversion) 29805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall switch (ARCCastChecker(Context, exprACTC, castACTC).Visit(castExpr)) { 29832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For invalid casts, fall through. 29842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_invalid: 29852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall break; 29862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Do nothing for both bottom and +0. 29882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_bottom: 29892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusZero: 29905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the result is +1, consume it here. 29932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusOne: 29942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall castExpr = ImplicitCastExpr::Create(Context, castExpr->getType(), 29952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CK_ARCConsumeObject, castExpr, 29962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 0, VK_RValue); 29972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ExprNeedsCleanups = true; 29985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 29992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 30005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // If this is a non-implicit cast from id or block type to a 30025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // CoreFoundation type, delay complaining in case the cast is used 30035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // in an acceptable context. 30045acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC) && 30055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK != CCK_ImplicitConversion) 30065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_unbridged; 30075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30085acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 30095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castExpr, exprACTC, CCK); 30105acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 30115acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 30125acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30135acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// Given that we saw an expression with the ARCUnbridgedCastTy 30145acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// placeholder type, complain bitterly. 30155acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallvoid Sema::diagnoseARCUnbridgedCast(Expr *e) { 30165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // We expect the spurious ImplicitCastExpr to already have been stripped. 30175acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 30185acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CastExpr *realCast = cast<CastExpr>(e->IgnoreParens()); 30195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30205acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceRange castRange; 30215acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType; 30225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CheckedConversionKind CCK; 30235acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30245acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (CStyleCastExpr *cast = dyn_cast<CStyleCastExpr>(realCast)) { 30255acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = SourceRange(cast->getLParenLoc(), cast->getRParenLoc()); 30265acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 30275acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_CStyleCast; 30285acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (ExplicitCastExpr *cast = dyn_cast<ExplicitCastExpr>(realCast)) { 30295acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = cast->getTypeInfoAsWritten()->getTypeLoc().getSourceRange(); 30305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 30315acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_OtherCast; 30325acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 30335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getType(); 30345acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_ImplicitConversion; 3035f85e193739c953358c865005855253af4f68a497John McCall } 30365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ARCConversionTypeClass castACTC = 30385acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall classifyTypeForARCConversion(castType.getNonReferenceType()); 30395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr = realCast->getSubExpr(); 30415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(classifyTypeForARCConversion(castExpr->getType()) == ACTC_retainable); 30425acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 30445acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castExpr, ACTC_retainable, CCK); 30455acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 30465acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30475acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// stripARCUnbridgedCast - Given an expression of ARCUnbridgedCast 30485acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// type, remove the placeholder cast. 30495acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallExpr *Sema::stripARCUnbridgedCast(Expr *e) { 30505acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 30515acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30525acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (ParenExpr *pe = dyn_cast<ParenExpr>(e)) { 30535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(pe->getSubExpr()); 30545acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) ParenExpr(pe->getLParen(), pe->getRParen(), sub); 30555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (UnaryOperator *uo = dyn_cast<UnaryOperator>(e)) { 30565acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(uo->getOpcode() == UO_Extension); 30575acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(uo->getSubExpr()); 30585acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) UnaryOperator(sub, UO_Extension, sub->getType(), 30595acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub->getValueKind(), sub->getObjectKind(), 30605acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall uo->getOperatorLoc()); 30615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (GenericSelectionExpr *gse = dyn_cast<GenericSelectionExpr>(e)) { 30625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!gse->isResultDependent()); 30635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned n = gse->getNumAssocs(); 30655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<Expr*, 4> subExprs(n); 30665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<TypeSourceInfo*, 4> subTypes(n); 30675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall for (unsigned i = 0; i != n; ++i) { 30685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subTypes[i] = gse->getAssocTypeSourceInfo(i); 30695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = gse->getAssocExpr(i); 30705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (i == gse->getResultIndex()) 30715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub = stripARCUnbridgedCast(sub); 30725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subExprs[i] = sub; 3073f85e193739c953358c865005855253af4f68a497John McCall } 30745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 30755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) GenericSelectionExpr(Context, gse->getGenericLoc(), 30765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getControllingExpr(), 30775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subTypes.data(), subExprs.data(), 30785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall n, gse->getDefaultLoc(), 30795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getRParenLoc(), 30805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->containsUnexpandedParameterPack(), 30815acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getResultIndex()); 30825acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 30835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(isa<ImplicitCastExpr>(e) && "bad form of unbridged cast!"); 30845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return cast<ImplicitCastExpr>(e)->getSubExpr(); 3085f85e193739c953358c865005855253af4f68a497John McCall } 3086f85e193739c953358c865005855253af4f68a497John McCall} 3087f85e193739c953358c865005855253af4f68a497John McCall 30887a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanianbool Sema::CheckObjCARCUnavailableWeakConversion(QualType castType, 30897a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType exprType) { 30907a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canCastType = 30917a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(castType).getUnqualifiedType(); 30927a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canExprType = 30937a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(exprType).getUnqualifiedType(); 30947a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (isa<ObjCObjectPointerType>(canCastType) && 30957a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian castType.getObjCLifetime() == Qualifiers::OCL_Weak && 30967a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->isObjCObjectPointerType()) { 30977a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (const ObjCObjectPointerType *ObjT = 30987a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->getAs<ObjCObjectPointerType>()) 30997a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (ObjT->getInterfaceDecl()->isArcWeakrefUnavailable()) 31007a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian return false; 31017a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian } 31027a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian return true; 31037a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian} 31047a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian 31057e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall/// Look for an ObjCReclaimReturnedObject cast and destroy it. 31067e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCallstatic Expr *maybeUndoReclaimObject(Expr *e) { 31077e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // For now, we just undo operands that are *immediately* reclaim 31087e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // expressions, which prevents the vast majority of potential 31097e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // problems here. To catch them all, we'd need to rebuild arbitrary 31107e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // value-propagating subexpressions --- we can't reliably rebuild 31117e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // in-place because of expression sharing. 31127e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall if (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 311333e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall if (ice->getCastKind() == CK_ARCReclaimReturnedObject) 31147e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return ice->getSubExpr(); 31157e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 31167e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return e; 31177e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall} 31187e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 3119f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::BuildObjCBridgedCast(SourceLocation LParenLoc, 3120f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3121f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3122f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo, 3123f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 31244906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall ExprResult SubResult = UsualUnaryConversions(SubExpr); 31254906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall if (SubResult.isInvalid()) return ExprError(); 31264906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall SubExpr = SubResult.take(); 31274906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall 3128f85e193739c953358c865005855253af4f68a497John McCall QualType T = TSInfo->getType(); 3129f85e193739c953358c865005855253af4f68a497John McCall QualType FromType = SubExpr->getType(); 3130f85e193739c953358c865005855253af4f68a497John McCall 31311d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK; 31321d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall 3133f85e193739c953358c865005855253af4f68a497John McCall bool MustConsume = false; 3134f85e193739c953358c865005855253af4f68a497John McCall if (T->isDependentType() || SubExpr->isTypeDependent()) { 3135f85e193739c953358c865005855253af4f68a497John McCall // Okay: we'll build a dependent expression type. 31361d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_Dependent; 3137f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isObjCARCBridgableType() && FromType->isCARCBridgableType()) { 3138f85e193739c953358c865005855253af4f68a497John McCall // Casting CF -> id 31391d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = (T->isBlockPointerType() ? CK_AnyPointerToBlockPointerCast 31401d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall : CK_CPointerToObjCPointerCast); 3141f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3142f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 3143f85e193739c953358c865005855253af4f68a497John McCall break; 3144f85e193739c953358c865005855253af4f68a497John McCall 314552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeRetained: { 314652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(*this, "CFBridgingRelease"); 3147f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3148f85e193739c953358c865005855253af4f68a497John McCall << 2 3149f85e193739c953358c865005855253af4f68a497John McCall << FromType 3150f85e193739c953358c865005855253af4f68a497John McCall << (T->isBlockPointerType()? 1 : 0) 3151f85e193739c953358c865005855253af4f68a497John McCall << T 3152f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3153f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3154f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3155f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge"); 3156f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_transfer) 315752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FromType << br 3158f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, 315952b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRelease " 316052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian : "__bridge_transfer "); 3161f85e193739c953358c865005855253af4f68a497John McCall 3162f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3163f85e193739c953358c865005855253af4f68a497John McCall break; 316452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3165f85e193739c953358c865005855253af4f68a497John McCall 3166f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeTransfer: 3167f85e193739c953358c865005855253af4f68a497John McCall // We must consume the Objective-C object produced by the cast. 3168f85e193739c953358c865005855253af4f68a497John McCall MustConsume = true; 3169f85e193739c953358c865005855253af4f68a497John McCall break; 3170f85e193739c953358c865005855253af4f68a497John McCall } 3171f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isCARCBridgableType() && FromType->isObjCARCBridgableType()) { 3172f85e193739c953358c865005855253af4f68a497John McCall // Okay: id -> CF 31731d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 3174f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3175f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 31767e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // Reclaiming a value that's going to be __bridge-casted to CF 31777e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // is very dangerous, so we don't do it. 31787e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall SubExpr = maybeUndoReclaimObject(SubExpr); 3179f85e193739c953358c865005855253af4f68a497John McCall break; 3180f85e193739c953358c865005855253af4f68a497John McCall 3181f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeRetained: 3182f85e193739c953358c865005855253af4f68a497John McCall // Produce the object before casting it. 3183f85e193739c953358c865005855253af4f68a497John McCall SubExpr = ImplicitCastExpr::Create(Context, FromType, 318433e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall CK_ARCProduceObject, 3185f85e193739c953358c865005855253af4f68a497John McCall SubExpr, 0, VK_RValue); 3186f85e193739c953358c865005855253af4f68a497John McCall break; 3187f85e193739c953358c865005855253af4f68a497John McCall 318852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeTransfer: { 318952b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian bool br = KnownName(*this, "CFBridgingRetain"); 3190f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3191f85e193739c953358c865005855253af4f68a497John McCall << (FromType->isBlockPointerType()? 1 : 0) 3192f85e193739c953358c865005855253af4f68a497John McCall << FromType 3193f85e193739c953358c865005855253af4f68a497John McCall << 2 3194f85e193739c953358c865005855253af4f68a497John McCall << T 3195f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3196f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3197f85e193739c953358c865005855253af4f68a497John McCall 3198f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3199f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge "); 3200f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_retained) 320152b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << T << br 320252b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FixItHint::CreateReplacement(BridgeKeywordLoc, 320352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRetain " : "__bridge_retained"); 3204f85e193739c953358c865005855253af4f68a497John McCall 3205f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3206f85e193739c953358c865005855253af4f68a497John McCall break; 3207f85e193739c953358c865005855253af4f68a497John McCall } 320852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3209f85e193739c953358c865005855253af4f68a497John McCall } else { 3210f85e193739c953358c865005855253af4f68a497John McCall Diag(LParenLoc, diag::err_arc_bridge_cast_incompatible) 3211f85e193739c953358c865005855253af4f68a497John McCall << FromType << T << Kind 3212f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3213f85e193739c953358c865005855253af4f68a497John McCall << TSInfo->getTypeLoc().getSourceRange(); 3214f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 3215f85e193739c953358c865005855253af4f68a497John McCall } 3216f85e193739c953358c865005855253af4f68a497John McCall 32171d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall Expr *Result = new (Context) ObjCBridgedCastExpr(LParenLoc, Kind, CK, 3218f85e193739c953358c865005855253af4f68a497John McCall BridgeKeywordLoc, 3219f85e193739c953358c865005855253af4f68a497John McCall TSInfo, SubExpr); 3220f85e193739c953358c865005855253af4f68a497John McCall 3221f85e193739c953358c865005855253af4f68a497John McCall if (MustConsume) { 3222f85e193739c953358c865005855253af4f68a497John McCall ExprNeedsCleanups = true; 322333e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall Result = ImplicitCastExpr::Create(Context, T, CK_ARCConsumeObject, Result, 3224f85e193739c953358c865005855253af4f68a497John McCall 0, VK_RValue); 3225f85e193739c953358c865005855253af4f68a497John McCall } 3226f85e193739c953358c865005855253af4f68a497John McCall 3227f85e193739c953358c865005855253af4f68a497John McCall return Result; 3228f85e193739c953358c865005855253af4f68a497John McCall} 3229f85e193739c953358c865005855253af4f68a497John McCall 3230f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::ActOnObjCBridgedCast(Scope *S, 3231f85e193739c953358c865005855253af4f68a497John McCall SourceLocation LParenLoc, 3232f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3233f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3234f85e193739c953358c865005855253af4f68a497John McCall ParsedType Type, 3235f85e193739c953358c865005855253af4f68a497John McCall SourceLocation RParenLoc, 3236f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 3237f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo = 0; 3238f85e193739c953358c865005855253af4f68a497John McCall QualType T = GetTypeFromParser(Type, &TSInfo); 3239f85e193739c953358c865005855253af4f68a497John McCall if (!TSInfo) 3240f85e193739c953358c865005855253af4f68a497John McCall TSInfo = Context.getTrivialTypeSourceInfo(T, LParenLoc); 3241f85e193739c953358c865005855253af4f68a497John McCall return BuildObjCBridgedCast(LParenLoc, Kind, BridgeKeywordLoc, TSInfo, 3242f85e193739c953358c865005855253af4f68a497John McCall SubExpr); 3243f85e193739c953358c865005855253af4f68a497John McCall} 3244