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" 1585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner#include "clang/AST/ASTContext.h" 1685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner#include "clang/AST/DeclObjC.h" 17f494b579b22f9950f5af021f0bf9879a91bb8b41Steve Naroff#include "clang/AST/ExprObjC.h" 18f85e193739c953358c865005855253af4f68a497John McCall#include "clang/AST/StmtVisitor.h" 192725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor#include "clang/AST/TypeLoc.h" 2055fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Analysis/DomainSpecific/CocoaConventions.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Edit/Commit.h" 2255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Edit/Rewriters.h" 2361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff#include "clang/Lex/Preprocessor.h" 2455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Initialization.h" 2555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Lookup.h" 2655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Scope.h" 2755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/ScopeInfo.h" 2855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/ADT/SmallString.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. 70651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const ConstantArrayType *CAT = Context.getAsConstantArrayType(S->getType()); 71651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(CAT && "String literal not of constant array type!"); 72651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType StrTy = Context.getConstantArrayType( 73651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CAT->getElementType(), llvm::APInt(32, StrBuf.size() + 1), 74651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CAT->getSizeModifier(), CAT->getIndexTypeCVRQualifiers()); 75651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S = StringLiteral::Create(Context, StrBuf, StringLiteral::Ascii, 76651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*Pascal=*/false, StrTy, &StrLocs[0], 77651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines StrLocs.size()); 7885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 79ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 80ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return BuildObjCStringLiteral(AtLocs[0], S); 81ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCStringLiteral(SourceLocation AtLoc, StringLiteral *S){ 84690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner // Verify that this composite string is acceptable for ObjC strings. 85690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner if (CheckObjCString(S)) 8685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 87a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner 88a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner // Initialize the constant string interface lazily. This assumes 89d9fd7647e286723d100db4cfeab31ec022eec629Steve Naroff // the NSString interface is seen in this translation unit. Note: We 90d9fd7647e286723d100db4cfeab31ec022eec629Steve Naroff // don't use NSConstantString, since the runtime team considers this 91d9fd7647e286723d100db4cfeab31ec022eec629Steve Naroff // interface private (even though it appears in the header files). 92a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCConstantStringInterface(); 93a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (!Ty.isNull()) { 9414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie } else if (getLangOpts().NoConstantCFStrings) { 966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines IdentifierInfo *NSIdent=nullptr; 974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie std::string StringClass(getLangOpts().ObjCConstantStringClass); 984c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian 994c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian if (StringClass.empty()) 1004c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian NSIdent = &Context.Idents.get("NSConstantString"); 1014c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian else 1024c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian NSIdent = &Context.Idents.get(StringClass); 1034c73307c74764ba99e1379677fe92af72f676531Fariborz Jahanian 104ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, NSIdent, AtLoc, 1058a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian LookupOrdinaryName); 1068a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian if (ObjCInterfaceDecl *StrIF = dyn_cast_or_null<ObjCInterfaceDecl>(IF)) { 1078a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Context.setObjCConstantStringInterface(StrIF); 1088a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Ty = Context.getObjCConstantStringInterface(); 1098a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Ty = Context.getObjCObjectPointerType(Ty); 1108a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian } else { 1118a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian // If there is no NSConstantString interface defined then treat this 1128a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian // as error and recover from it. 1138a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Diag(S->getLocStart(), diag::err_no_nsconstant_string_class) << NSIdent 1148a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian << S->getSourceRange(); 1158a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian Ty = Context.getObjCIdType(); 1168a4377697161c5087e27cc40d6e0682f0cd1fa20Fariborz Jahanian } 11713fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner } else { 118eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *NSIdent = NSAPIObj->getNSClassId(NSAPI::ClassId_NSString); 119ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, NSIdent, AtLoc, 120c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor LookupOrdinaryName); 121a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (ObjCInterfaceDecl *StrIF = dyn_cast_or_null<ObjCInterfaceDecl>(IF)) { 122a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner Context.setObjCConstantStringInterface(StrIF); 123a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner Ty = Context.getObjCConstantStringInterface(); 12414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 125a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner } else { 126f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // If there is no NSString interface defined, implicitly declare 127f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // a @class NSString; and use that instead. This is to make sure 128f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // type of an NSString literal is represented correctly, instead of 129f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian // being an 'id' type. 130f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Ty = Context.getObjCNSStringType(); 131f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian if (Ty.isNull()) { 132f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian ObjCInterfaceDecl *NSStringIDecl = 133f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian ObjCInterfaceDecl::Create (Context, 134f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Context.getTranslationUnitDecl(), 135f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian SourceLocation(), NSIdent, 1366bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SourceLocation()); 137f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Ty = Context.getObjCInterfaceType(NSStringIDecl); 138f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Context.setObjCNSStringType(Ty); 139f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian } 140f64bc202a2bcdf7b10f418ad52aaa7366c8ffef9Fariborz Jahanian Ty = Context.getObjCObjectPointerType(Ty); 141a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner } 14213fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner } 1431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return new (Context) ObjCStringLiteral(S, Ty, AtLoc); 145ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 146ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 147c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose/// \brief Emits an error if the given method does not exist, or if the return 148c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose/// type is not an Objective-C object. 149c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rosestatic bool validateBoxingMethod(Sema &S, SourceLocation Loc, 150c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose const ObjCInterfaceDecl *Class, 151c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Selector Sel, const ObjCMethodDecl *Method) { 152c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method) { 153c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose // FIXME: Is there a better way to avoid quotes than using getName()? 154c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose S.Diag(Loc, diag::err_undeclared_boxing_method) << Sel << Class->getName(); 155c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return false; 156c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose } 157c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 158c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose // Make sure the return type is reasonable. 159651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType ReturnType = Method->getReturnType(); 160c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!ReturnType->isObjCObjectPointerType()) { 161c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose S.Diag(Loc, diag::err_objc_literal_method_sig) 162c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose << Sel; 163c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose S.Diag(Method->getLocation(), diag::note_objc_literal_method_return) 164c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose << ReturnType; 165c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return false; 166c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose } 167c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 168c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return true; 169c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose} 170c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 171ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// \brief Retrieve the NSNumber factory method that should be used to create 172ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// an Objective-C literal for the given type. 173ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic ObjCMethodDecl *getNSNumberFactoryMethod(Sema &S, SourceLocation Loc, 174eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType NumberType, 175eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard bool isLiteral = false, 176eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceRange R = SourceRange()) { 177dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie Optional<NSAPI::NSNumberLiteralMethodKind> Kind = 178dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie S.NSAPIObj->getNSNumberFactoryMethodKind(NumberType); 179dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie 180ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Kind) { 181eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (isLiteral) { 182eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_invalid_nsnumber_type) 183eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << NumberType << R; 184eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 1856bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 186ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 187eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 188ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If we already looked up this method, we're done. 189ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.NSNumberLiteralMethods[*Kind]) 190ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return S.NSNumberLiteralMethods[*Kind]; 191ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 192ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = S.NSAPIObj->getNSNumberLiteralSelector(*Kind, 193ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*Instance=*/false); 194ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 195eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ASTContext &CX = S.Context; 196eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 197eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look up the NSNumber class, if we haven't done so already. It's cached 198eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // in the Sema instance. 199eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!S.NSNumberDecl) { 200d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose IdentifierInfo *NSNumberId = 201d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSAPIObj->getNSClassId(NSAPI::ClassId_NSNumber); 202eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NamedDecl *IF = S.LookupSingleName(S.TUScope, NSNumberId, 203eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Loc, Sema::LookupOrdinaryName); 204eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.NSNumberDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 205eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!S.NSNumberDecl) { 206eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (S.getLangOpts().DebuggerObjCLiteral) { 207eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Create a stub definition of NSNumber. 208d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSNumberDecl = ObjCInterfaceDecl::Create(CX, 209d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose CX.getTranslationUnitDecl(), 210d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), NSNumberId, 2116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SourceLocation()); 212eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else { 213eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Otherwise, require a declaration of NSNumber. 214eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_undeclared_nsnumber); 2156bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 216eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 217eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (!S.NSNumberDecl->hasDefinition()) { 218eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard S.Diag(Loc, diag::err_undeclared_nsnumber); 2196bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 220eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 221eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 222eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // generate the pointer to NSNumber type. 223d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose QualType NSNumberObject = CX.getObjCInterfaceType(S.NSNumberDecl); 224d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose S.NSNumberPointer = CX.getObjCObjectPointerType(NSNumberObject); 225eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 226eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 227ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for the appropriate method within NSNumber. 228d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose ObjCMethodDecl *Method = S.NSNumberDecl->lookupClassMethod(Sel); 2294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && S.getLangOpts().DebuggerObjCLiteral) { 230eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // create a stub definition this NSNumber factory method. 2316bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeSourceInfo *ReturnTInfo = nullptr; 232651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Method = 233651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl::Create(CX, SourceLocation(), SourceLocation(), Sel, 234651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.NSNumberPointer, ReturnTInfo, S.NSNumberDecl, 235651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isInstance=*/false, /*isVariadic=*/false, 236651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isPropertyAccessor=*/false, 237651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isImplicitlyDeclared=*/true, 238651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isDefined=*/false, ObjCMethodDecl::Required, 239651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*HasRelatedResultType=*/false); 240ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ParmVarDecl *value = ParmVarDecl::Create(S.Context, Method, 241ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), 242eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard &CX.Idents.get("value"), 2436bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NumberType, /*TInfo=*/nullptr, 2446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SC_None, nullptr); 2455543169296beeb183b9c9392debc774fcf493eebDmitri Gribenko Method->setMethodParams(S.Context, value, None); 246ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 247ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 248c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(S, Loc, S.NSNumberDecl, Sel, Method)) 2496bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 250ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 251ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Note: if the parameter type is out-of-line, we'll catch it later in the 252ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // implicit conversion. 253ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 254ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.NSNumberLiteralMethods[*Kind] = Method; 255ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Method; 256ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 257ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 258eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard/// BuildObjCNumericLiteral - builds an ObjCBoxedExpr AST node for the 259eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard/// numeric literal expression. Type of the expression will be "NSNumber *". 260ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCNumericLiteral(SourceLocation AtLoc, Expr *Number) { 261ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Determine the type of the literal. 262ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType NumberType = Number->getType(); 263ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (CharacterLiteral *Char = dyn_cast<CharacterLiteral>(Number)) { 264ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // In C, character literals have type 'int'. That's not the type we want 265ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // to use to determine the Objective-c literal kind. 266ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Char->getKind()) { 267ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::Ascii: 268ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.CharTy; 269ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 270ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 271ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::Wide: 27215f92bad58c8650b1306729744b1a1230197497aHans Wennborg NumberType = Context.getWideCharType(); 273ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 274ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 275ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::UTF16: 276ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.Char16Ty; 277ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 278ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 279ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case CharacterLiteral::UTF32: 280ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NumberType = Context.Char32Ty; 281ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 282ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 283ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 284ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 285ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look for the appropriate method within NSNumber. 286ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Construct the literal. 287e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceRange NR(Number->getSourceRange()); 288eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCMethodDecl *Method = getNSNumberFactoryMethod(*this, AtLoc, NumberType, 289e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard true, NR); 290ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Method) 291ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 292ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 293ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Convert the number to the type that the parameter expects. 294ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ParmVarDecl *ParamDecl = Method->parameters()[0]; 295e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 296e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParamDecl); 297e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ExprResult ConvertedNumber = PerformCopyInitialization(Entity, 298e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceLocation(), 299ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Number); 300ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (ConvertedNumber.isInvalid()) 301ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 302ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Number = ConvertedNumber.get(); 303ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 304e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard // Use the effective source range of the literal, including the leading '@'. 305ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 306e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard new (Context) ObjCBoxedExpr(Number, NSNumberPointer, Method, 307e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceRange(AtLoc, NR.getEnd()))); 308ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 309ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 310ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::ActOnObjCBoolLiteral(SourceLocation AtLoc, 311ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation ValueLoc, 312ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool Value) { 313ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Inner; 3144e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 315ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ActOnCXXBoolLiteral(ValueLoc, Value? tok::kw_true : tok::kw_false); 316ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } else { 317ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // C doesn't actually have a way to represent literal values of type 318ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // _Bool. So, we'll use 0/1 and implicit cast to _Bool. 319ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ActOnIntegerConstant(ValueLoc, Value? 1 : 0); 320ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Inner = ImpCastExprToType(Inner.get(), Context.BoolTy, 321ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek CK_IntegralToBoolean); 322ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 323ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 324ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return BuildObjCNumericLiteral(AtLoc, Inner.get()); 325ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 326ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 327ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// \brief Check that the given expression is a valid element of an Objective-C 328ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek/// collection literal. 329ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic ExprResult CheckObjCCollectionLiteralElement(Sema &S, Expr *Element, 330dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian QualType T, 331dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian bool ArrayLiteral = false) { 332ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If the expression is type-dependent, there's nothing for us to do. 333ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Element->isTypeDependent()) 334ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return Element; 335ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 336ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = S.CheckPlaceholderExpr(Element); 337ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 338ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 339ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 340ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 341ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // In C++, check for an implicit conversion to an Objective-C object pointer 342ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // type. 3434e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().CPlusPlus && Element->getType()->isRecordType()) { 344ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializedEntity Entity 345d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose = InitializedEntity::InitializeParameter(S.Context, T, 346d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose /*Consumed=*/false); 347ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializationKind Kind 348d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose = InitializationKind::CreateCopy(Element->getLocStart(), 349d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation()); 3501f78a50f8aee58f8e07f6307f4b8d0b1742e9a2bDmitri Gribenko InitializationSequence Seq(S, Entity, Kind, Element); 351ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Seq.Failed()) 3525354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer return Seq.Perform(S, Entity, Kind, Element); 353ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 354ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 355ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *OrigElement = Element; 356ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 357ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Perform lvalue-to-rvalue conversion. 358ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.DefaultLvalueConversion(Element); 359ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 360ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 361ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 362ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 363ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure that we have an Objective-C pointer type or block. 364ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Element->getType()->isObjCObjectPointerType() && 365ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Element->getType()->isBlockPointerType()) { 366ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool Recovered = false; 367ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 368ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If this is potentially an Objective-C numeric literal, add the '@'. 369ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (isa<IntegerLiteral>(OrigElement) || 370ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<CharacterLiteral>(OrigElement) || 371ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<FloatingLiteral>(OrigElement) || 372ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<ObjCBoolLiteralExpr>(OrigElement) || 373ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<CXXBoolLiteralExpr>(OrigElement)) { 374ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (S.NSAPIObj->getNSNumberFactoryMethodKind(OrigElement->getType())) { 375ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek int Which = isa<CharacterLiteral>(OrigElement) ? 1 376ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : (isa<CXXBoolLiteralExpr>(OrigElement) || 377ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek isa<ObjCBoolLiteralExpr>(OrigElement)) ? 2 378ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek : 3; 379ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 380ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(OrigElement->getLocStart(), diag::err_box_literal_collection) 381ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Which << OrigElement->getSourceRange() 382ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FixItHint::CreateInsertion(OrigElement->getLocStart(), "@"); 383ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 384ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.BuildObjCNumericLiteral(OrigElement->getLocStart(), 385ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek OrigElement); 386ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 387ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 388ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 389ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 390ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Recovered = true; 391ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 392ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 393ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // If this is potentially an Objective-C string literal, add the '@'. 394ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else if (StringLiteral *String = dyn_cast<StringLiteral>(OrigElement)) { 395ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (String->isAscii()) { 396ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(OrigElement->getLocStart(), diag::err_box_literal_collection) 397ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << 0 << OrigElement->getSourceRange() 398ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << FixItHint::CreateInsertion(OrigElement->getLocStart(), "@"); 399ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 400ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = S.BuildObjCStringLiteral(OrigElement->getLocStart(), String); 401ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 402ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 403ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 404ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element = Result.get(); 405ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Recovered = true; 406ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 407ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 408dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian 409ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Recovered) { 410ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek S.Diag(Element->getLocStart(), diag::err_invalid_collection_element) 411ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Element->getType(); 412ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 413ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 414ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 415dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian if (ArrayLiteral) 416a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek if (ObjCStringLiteral *getString = 417a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek dyn_cast<ObjCStringLiteral>(OrigElement)) { 418a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek if (StringLiteral *SL = getString->getString()) { 419a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek unsigned numConcat = SL->getNumConcatenated(); 420a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek if (numConcat > 1) { 421a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek // Only warn if the concatenated string doesn't come from a macro. 422a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek bool hasMacro = false; 423a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek for (unsigned i = 0; i < numConcat ; ++i) 424a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek if (SL->getStrTokenLoc(i).isMacroID()) { 425a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek hasMacro = true; 426a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek break; 427a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek } 428a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek if (!hasMacro) 429a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek S.Diag(Element->getLocStart(), 430a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek diag::warn_concatenated_nsarray_literal) 431a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek << Element->getType(); 432a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek } 433a18829860c8b186d3a7f6a4ba83e21e9cbbffac1Ted Kremenek } 434dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian } 435dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian 436ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Make sure that the element has the type that the container factory 437ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // function expects. 438ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return S.PerformCopyInitialization( 439ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek InitializedEntity::InitializeParameter(S.Context, T, 440ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*Consumed=*/false), 441ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Element->getLocStart(), Element); 442ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 443ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 444eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick BeardExprResult Sema::BuildObjCBoxedExpr(SourceRange SR, Expr *ValueExpr) { 445eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ValueExpr->isTypeDependent()) { 446eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 4476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines new (Context) ObjCBoxedExpr(ValueExpr, Context.DependentTy, nullptr, SR); 448ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return BoxedExpr; 449eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 4506bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCMethodDecl *BoxingMethod = nullptr; 451eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType BoxedType; 452eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to an RValue, so we can check for pointer types... 453eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ExprResult RValue = DefaultFunctionArrayLvalueConversion(ValueExpr); 454eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (RValue.isInvalid()) { 455eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 456eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 457eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = RValue.get(); 458e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard QualType ValueType(ValueExpr->getType()); 459eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (const PointerType *PT = ValueType->getAs<PointerType>()) { 460eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard QualType PointeeType = PT->getPointeeType(); 461eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (Context.hasSameUnqualifiedType(PointeeType, Context.CharTy)) { 462eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 463eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!NSStringDecl) { 464eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *NSStringId = 465eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSAPIObj->getNSClassId(NSAPI::ClassId_NSString); 466eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NamedDecl *Decl = LookupSingleName(TUScope, NSStringId, 467eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SR.getBegin(), LookupOrdinaryName); 468eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard NSStringDecl = dyn_cast_or_null<ObjCInterfaceDecl>(Decl); 469eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!NSStringDecl) { 470eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (getLangOpts().DebuggerObjCLiteral) { 471eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Support boxed expressions in the debugger w/o NSString declaration. 472d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose DeclContext *TU = Context.getTranslationUnitDecl(); 473d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSStringDecl = ObjCInterfaceDecl::Create(Context, TU, 474d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 475d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSStringId, 4766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SourceLocation()); 477eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else { 478eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_undeclared_nsstring); 479eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 480eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 481eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } else if (!NSStringDecl->hasDefinition()) { 482eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_undeclared_nsstring); 483eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 484eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 485eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard assert(NSStringDecl && "NSStringDecl should not be NULL"); 486d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose QualType NSStringObject = Context.getObjCInterfaceType(NSStringDecl); 487d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSStringPointer = Context.getObjCObjectPointerType(NSStringObject); 488eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 489eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 490eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!StringWithUTF8StringMethod) { 491eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard IdentifierInfo *II = &Context.Idents.get("stringWithUTF8String"); 492eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Selector stringWithUTF8String = Context.Selectors.getUnarySelector(II); 493eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 494eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look for the appropriate method within NSString. 495c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose BoxingMethod = NSStringDecl->lookupClassMethod(stringWithUTF8String); 496c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!BoxingMethod && getLangOpts().DebuggerObjCLiteral) { 497eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Debugger needs to work even if NSString hasn't been defined. 4986bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeSourceInfo *ReturnTInfo = nullptr; 499651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl *M = ObjCMethodDecl::Create( 500651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Context, SourceLocation(), SourceLocation(), stringWithUTF8String, 501651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines NSStringPointer, ReturnTInfo, NSStringDecl, 502651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isInstance=*/false, /*isVariadic=*/false, 503651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isPropertyAccessor=*/false, 504651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isImplicitlyDeclared=*/true, 505651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isDefined=*/false, ObjCMethodDecl::Required, 506651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*HasRelatedResultType=*/false); 507d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose QualType ConstCharType = Context.CharTy.withConst(); 508eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ParmVarDecl *value = 509eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ParmVarDecl::Create(Context, M, 510eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard SourceLocation(), SourceLocation(), 511eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard &Context.Idents.get("value"), 512d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(ConstCharType), 5136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, 5146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SC_None, nullptr); 5155543169296beeb183b9c9392debc774fcf493eebDmitri Gribenko M->setMethodParams(Context, value, None); 516c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose BoxingMethod = M; 517eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 51899446d934c85e8b705cc6b8624e65b8eb8c22985Jordy Rose 519c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSStringDecl, 520c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose stringWithUTF8String, BoxingMethod)) 521c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return ExprError(); 522c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 523c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose StringWithUTF8StringMethod = BoxingMethod; 524eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 525eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 526eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod = StringWithUTF8StringMethod; 527eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxedType = NSStringPointer; 528eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 529e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard } else if (ValueType->isBuiltinType()) { 530eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // The other types we support are numeric, char and BOOL/bool. We could also 531eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // provide limited support for structure types, such as NSRange, NSRect, and 532eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // NSSize. See NSValue (NSValueGeometryExtensions) in <Foundation/NSGeometry.h> 533eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // for more details. 534eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 535eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Check for a top-level character literal. 536eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (const CharacterLiteral *Char = 537eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard dyn_cast<CharacterLiteral>(ValueExpr->IgnoreParens())) { 538eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // In C, character literals have type 'int'. That's not the type we want 539eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // to use to determine the Objective-c literal kind. 540eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard switch (Char->getKind()) { 541eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::Ascii: 542eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.CharTy; 543eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 544eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 545eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::Wide: 54615f92bad58c8650b1306729744b1a1230197497aHans Wennborg ValueType = Context.getWideCharType(); 547eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 548eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 549eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::UTF16: 550eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.Char16Ty; 551eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 552eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 553eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard case CharacterLiteral::UTF32: 554eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueType = Context.Char32Ty; 555eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard break; 556eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 557eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 558ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckForIntOverflow(ValueExpr); 559eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // FIXME: Do I need to do anything special with BoolTy expressions? 560eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 561eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Look for the appropriate method within NSNumber. 562eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod = getNSNumberFactoryMethod(*this, SR.getBegin(), ValueType); 563eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxedType = NSNumberPointer; 564f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis 565f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis } else if (const EnumType *ET = ValueType->getAs<EnumType>()) { 566f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis if (!ET->getDecl()->isComplete()) { 567f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis Diag(SR.getBegin(), diag::err_objc_incomplete_boxed_expression_type) 568f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis << ValueType << ValueExpr->getSourceRange(); 569f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis return ExprError(); 570f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis } 571f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis 572f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis BoxingMethod = getNSNumberFactoryMethod(*this, SR.getBegin(), 573f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis ET->getDecl()->getIntegerType()); 574f5343ff93a9549c49469dee366733e1e31ab836eArgyrios Kyrtzidis BoxedType = NSNumberPointer; 575eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 576eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 577eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (!BoxingMethod) { 578eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard Diag(SR.getBegin(), diag::err_objc_illegal_boxed_expression_type) 579eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard << ValueType << ValueExpr->getSourceRange(); 580eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 581eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard } 582eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 583eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard // Convert the expression to the type that the parameter requires. 584ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ParmVarDecl *ParamDecl = BoxingMethod->parameters()[0]; 585e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 586e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ParamDecl); 587e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard ExprResult ConvertedValueExpr = PerformCopyInitialization(Entity, 588e0fdadfd5103fa5f824920e813216615807c74baPatrick Beard SourceLocation(), 589ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ValueExpr); 590eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard if (ConvertedValueExpr.isInvalid()) 591eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return ExprError(); 592eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ValueExpr = ConvertedValueExpr.get(); 593eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 594eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard ObjCBoxedExpr *BoxedExpr = 595eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard new (Context) ObjCBoxedExpr(ValueExpr, BoxedType, 596eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard BoxingMethod, SR); 597eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard return MaybeBindToTemporary(BoxedExpr); 598eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard} 599eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard 6001503f0ddab0057e33efa21393fc0577580d6287aJohn McCall/// Build an ObjC subscript pseudo-object expression, given that 6011503f0ddab0057e33efa21393fc0577580d6287aJohn McCall/// that's supported by the runtime. 602ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCSubscriptExpression(SourceLocation RB, Expr *BaseExpr, 603ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Expr *IndexExpr, 604ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *getterMethod, 605ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl *setterMethod) { 606d9553e35e1e3af6fc4ca817b169dc796a5b54bcdFariborz Jahanian assert(!LangOpts.isSubscriptPointerArithmetic()); 607260611a32535c851237926bfcf78869b13c07d5bJohn McCall 6081503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // We can't get dependent types here; our callers should have 6091503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // filtered them out. 6101503f0ddab0057e33efa21393fc0577580d6287aJohn McCall assert((!BaseExpr->isTypeDependent() && !IndexExpr->isTypeDependent()) && 6111503f0ddab0057e33efa21393fc0577580d6287aJohn McCall "base or index cannot have dependent type here"); 6121503f0ddab0057e33efa21393fc0577580d6287aJohn McCall 6131503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // Filter out placeholders in the index. In theory, overloads could 6141503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // be preserved here, although that might not actually work correctly. 615ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Result = CheckPlaceholderExpr(IndexExpr); 616ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 617ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 618ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IndexExpr = Result.get(); 619ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 6201503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // Perform lvalue-to-rvalue conversion on the base. 621ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Result = DefaultLvalueConversion(BaseExpr); 622ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Result.isInvalid()) 623ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 624ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek BaseExpr = Result.get(); 6251503f0ddab0057e33efa21393fc0577580d6287aJohn McCall 6261503f0ddab0057e33efa21393fc0577580d6287aJohn McCall // Build the pseudo-object expression. 627ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return ObjCSubscriptRefExpr::Create(Context, BaseExpr, IndexExpr, 628ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Context.PseudoObjectTy, getterMethod, 629ef8225444452a1486bd721f3285301fe84643b00Stephen Hines setterMethod, RB); 630ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 631ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 632ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCArrayLiteral(SourceRange SR, MultiExprArg Elements) { 633ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSArray class, if we haven't done so already. 634ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 635ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 636ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 637ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), 638ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek LookupOrdinaryName); 639ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 6404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSArrayDecl && getLangOpts().DebuggerObjCLiteral) 641ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSArrayDecl = ObjCInterfaceDecl::Create (Context, 642ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 643ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 644ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSArray), 6456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SourceLocation()); 646ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 647ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSArrayDecl) { 648ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsarray); 649ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 650ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 651ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 652ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 653ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the arrayWithObjects:count: method, if we haven't done so already. 654ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 655ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ArrayWithObjectsMethod) { 656ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector 657ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Sel = NSAPIObj->getNSArraySelector(NSAPI::NSArr_arrayWithObjectsCount); 658c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ObjCMethodDecl *Method = NSArrayDecl->lookupClassMethod(Sel); 659c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method && getLangOpts().DebuggerObjCLiteral) { 6606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeSourceInfo *ReturnTInfo = nullptr; 661651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Method = ObjCMethodDecl::Create( 662651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Context, SourceLocation(), SourceLocation(), Sel, IdT, ReturnTInfo, 663651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Context.getTranslationUnitDecl(), false /*Instance*/, 664651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines false /*isVariadic*/, 665651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isPropertyAccessor=*/false, 666651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 667651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl::Required, false); 668ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 2> Params; 669c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *objects = ParmVarDecl::Create(Context, Method, 670d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 671d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 672d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("objects"), 673d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 6746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, 6756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SC_None, nullptr); 676ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 677c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *cnt = ParmVarDecl::Create(Context, Method, 678d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 679d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 680d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("cnt"), 681d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.UnsignedLongTy, 6826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, SC_None, 6836bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 684ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 6855543169296beeb183b9c9392debc774fcf493eebDmitri Gribenko Method->setMethodParams(Context, Params, None); 686ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 687ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 688c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSArrayDecl, Sel, Method)) 689ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 690c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 6913eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all elements should be converted to. 692ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType T = Method->parameters()[0]->getType(); 6933eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrT = T->getAs<PointerType>(); 6943eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrT || 6953eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrT->getPointeeType(), IdT)) { 6963eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 6973eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 698ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Diag(Method->parameters()[0]->getLocation(), 6993eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 7003eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 0 << T 7013eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 7023eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 7033eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 7043eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 7053eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Check that the 'count' parameter is integral. 706ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (!Method->parameters()[1]->getType()->isIntegerType()) { 7073eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 7083eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 709ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Diag(Method->parameters()[1]->getLocation(), 7103eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 7113eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 1 712ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << Method->parameters()[1]->getType() 7133eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << "integral"; 7143eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 7153eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 7163eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 7173eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // We've found a good +arrayWithObjects:count: method. Save it! 718c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ArrayWithObjectsMethod = Method; 719ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 720ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 721ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType ObjectsType = ArrayWithObjectsMethod->parameters()[0]->getType(); 7223eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType RequiredType = ObjectsType->castAs<PointerType>()->getPointeeType(); 723ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 724ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the elements provided is valid in a collection literal, 725ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // performing conversions as necessary. 7265354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **ElementsBuffer = Elements.data(); 727ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = Elements.size(); I != N; ++I) { 728ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Converted = CheckObjCCollectionLiteralElement(*this, 729ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I], 730dc25f8cf9e14b424708af52786af7fcf26445deeFariborz Jahanian RequiredType, true); 731ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Converted.isInvalid()) 732ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 733ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 734ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ElementsBuffer[I] = Converted.get(); 735ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 736ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 737ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 738ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 739ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getObjCInterfaceType(NSArrayDecl)); 740ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 741ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return MaybeBindToTemporary( 7425354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ObjCArrayLiteral::Create(Context, Elements, Ty, 7435354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ArrayWithObjectsMethod, SR)); 744ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 745ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 746ebcb57a8d298862c65043e88b2429591ab3c58d3Ted KremenekExprResult Sema::BuildObjCDictionaryLiteral(SourceRange SR, 747ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCDictionaryElement *Elements, 748ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned NumElements) { 749ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Look up the NSDictionary class, if we haven't done so already. 750ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 751ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NamedDecl *IF = LookupSingleName(TUScope, 752ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 753ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SR.getBegin(), LookupOrdinaryName); 754ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = dyn_cast_or_null<ObjCInterfaceDecl>(IF); 7554e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!NSDictionaryDecl && getLangOpts().DebuggerObjCLiteral) 756ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSDictionaryDecl = ObjCInterfaceDecl::Create (Context, 757ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 758ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), 759ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek NSAPIObj->getNSClassId(NSAPI::ClassId_NSDictionary), 7606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SourceLocation()); 761ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 762ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!NSDictionaryDecl) { 763ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_undeclared_nsdictionary); 764ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 765ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 766ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 767ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 768ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Find the dictionaryWithObjects:forKeys:count: method, if we haven't done 769ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // so already. 770ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType IdT = Context.getObjCIdType(); 771ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!DictionaryWithObjectsMethod) { 772ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Selector Sel = NSAPIObj->getNSDictionarySelector( 773d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose NSAPI::NSDict_dictionaryWithObjectsForKeysCount); 774c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ObjCMethodDecl *Method = NSDictionaryDecl->lookupClassMethod(Sel); 775c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!Method && getLangOpts().DebuggerObjCLiteral) { 776c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method = ObjCMethodDecl::Create(Context, 777ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation(), SourceLocation(), Sel, 778ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek IdT, 7796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr /*TypeSourceInfo */, 780ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Context.getTranslationUnitDecl(), 781ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false /*Instance*/, false/*isVariadic*/, 7821e4691b9d8e1bdcc8ef62b323969d702c51b3c08Jordan Rose /*isPropertyAccessor=*/false, 783ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek /*isImplicitlyDeclared=*/true, /*isDefined=*/false, 784ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMethodDecl::Required, 785ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek false); 786ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SmallVector<ParmVarDecl *, 3> Params; 787c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *objects = ParmVarDecl::Create(Context, Method, 788d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 789d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 790d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("objects"), 791d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 7926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, SC_None, 7936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 794ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(objects); 795c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *keys = ParmVarDecl::Create(Context, Method, 796d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 797d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 798d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("keys"), 799d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.getPointerType(IdT), 8006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, SC_None, 8016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 802ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(keys); 803c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose ParmVarDecl *cnt = ParmVarDecl::Create(Context, Method, 804d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 805d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceLocation(), 806d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose &Context.Idents.get("cnt"), 807d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose Context.UnsignedLongTy, 8086bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*TInfo=*/nullptr, SC_None, 8096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 810ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Params.push_back(cnt); 8115543169296beeb183b9c9392debc774fcf493eebDmitri Gribenko Method->setMethodParams(Context, Params, None); 812ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 813ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 814c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose if (!validateBoxingMethod(*this, SR.getBegin(), NSDictionaryDecl, Sel, 815c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose Method)) 816c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose return ExprError(); 817c8521fae12432f0dcf174988832c1db88a6b6449Jordy Rose 8183eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all values should be converted to. 819ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType ValueT = Method->parameters()[0]->getType(); 8203eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrValue = ValueT->getAs<PointerType>(); 8213eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrValue || 8223eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrValue->getPointeeType(), IdT)) { 8233eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8243eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 825ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Diag(Method->parameters()[0]->getLocation(), 8263eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 8273eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 0 << ValueT 8283eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 8293eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 8303eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 831ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 8323eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Dig out the type that all keys should be converted to. 833ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType KeyT = Method->parameters()[1]->getType(); 8343eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose const PointerType *PtrKey = KeyT->getAs<PointerType>(); 8353eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!PtrKey || 8363eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 8373eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose IdT)) { 8383eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose bool err = true; 8393eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (PtrKey) { 8403eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (QIDNSCopying.isNull()) { 8413eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // key argument of selector is id<NSCopying>? 8423eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (ObjCProtocolDecl *NSCopyingPDecl = 8433eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose LookupProtocol(&Context.Idents.get("NSCopying"), SR.getBegin())) { 8443eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose ObjCProtocolDecl *PQ[] = {NSCopyingPDecl}; 8453eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying = 8463eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 8473eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose (ObjCProtocolDecl**) PQ,1); 8483eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying = Context.getObjCObjectPointerType(QIDNSCopying); 8493eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 850ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8513eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!QIDNSCopying.isNull()) 8523eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose err = !Context.hasSameUnqualifiedType(PtrKey->getPointeeType(), 8533eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QIDNSCopying); 854ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 855ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 8563eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (err) { 8573eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8583eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 859ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Diag(Method->parameters()[1]->getLocation(), 8603eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose diag::note_objc_literal_method_param) 8613eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 1 << KeyT 8623eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Context.getPointerType(IdT.withConst()); 8633eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose return ExprError(); 8643eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 8653eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose } 8663eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8673eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // Check that the 'count' parameter is integral. 868ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType CountType = Method->parameters()[2]->getType(); 8693eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose if (!CountType->isIntegerType()) { 870ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(SR.getBegin(), diag::err_objc_literal_method_sig) 8713eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << Sel; 872ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Diag(Method->parameters()[2]->getLocation(), 873ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::note_objc_literal_method_param) 8743eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << 2 << CountType 8753eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose << "integral"; 876ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 877ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8783eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 8793eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose // We've found a good +dictionaryWithObjects:keys:count: method; save it! 8803eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose DictionaryWithObjectsMethod = Method; 881ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 8823eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose 883ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType ValuesT = DictionaryWithObjectsMethod->parameters()[0]->getType(); 8843eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType ValueT = ValuesT->castAs<PointerType>()->getPointeeType(); 885ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType KeysT = DictionaryWithObjectsMethod->parameters()[1]->getType(); 8863eda6fa901b462f0b5f72d0651f46d804aac1844Jordy Rose QualType KeyT = KeysT->castAs<PointerType>()->getPointeeType(); 887ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 888ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check that each of the keys and values provided is valid in a collection 889ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // literal, performing conversions as necessary. 890ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool HasPackExpansions = false; 891ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (unsigned I = 0, N = NumElements; I != N; ++I) { 892ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the key. 893ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Key = CheckObjCCollectionLiteralElement(*this, Elements[I].Key, 894ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek KeyT); 895ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Key.isInvalid()) 896ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 897ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 898ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // Check the value. 899ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ExprResult Value 900ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = CheckObjCCollectionLiteralElement(*this, Elements[I].Value, ValueT); 901ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Value.isInvalid()) 902ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 903ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 904ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Key = Key.get(); 905ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value = Value.get(); 906ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 907ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (Elements[I].EllipsisLoc.isInvalid()) 908ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek continue; 909ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 910ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!Elements[I].Key->containsUnexpandedParameterPack() && 911ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek !Elements[I].Value->containsUnexpandedParameterPack()) { 912ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Diag(Elements[I].EllipsisLoc, 913ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek diag::err_pack_expansion_without_parameter_packs) 914ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << SourceRange(Elements[I].Key->getLocStart(), 915ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Elements[I].Value->getLocEnd()); 916ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return ExprError(); 917ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 918ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 919ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek HasPackExpansions = true; 920ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 921ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 922ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 923ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek QualType Ty 924ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek = Context.getObjCObjectPointerType( 925ecf119c68b9f20f022965fb4875f3fa1d4ffef70Robert Wilhelm Context.getObjCInterfaceType(NSDictionaryDecl)); 926ecf119c68b9f20f022965fb4875f3fa1d4ffef70Robert Wilhelm return MaybeBindToTemporary(ObjCDictionaryLiteral::Create( 927ecf119c68b9f20f022965fb4875f3fa1d4ffef70Robert Wilhelm Context, makeArrayRef(Elements, NumElements), HasPackExpansions, Ty, 928ecf119c68b9f20f022965fb4875f3fa1d4ffef70Robert Wilhelm DictionaryWithObjectsMethod, SR)); 92985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 93085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 9313b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios KyrtzidisExprResult Sema::BuildObjCEncodeExpression(SourceLocation AtLoc, 93281d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *EncodedTypeInfo, 933fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson SourceLocation RParenLoc) { 93481d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = EncodedTypeInfo->getType(); 935fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson QualType StrTy; 9361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EncodedType->isDependentType()) 937fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.DependentTy; 938fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson else { 9396c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian if (!EncodedType->getAsArrayTypeUnsafe() && //// Incomplete array is handled. 9406c91615e5d67d59e752037beb475c4b827431172Fariborz Jahanian !EncodedType->isVoidType()) // void is handled too. 9413b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis if (RequireCompleteType(AtLoc, EncodedType, 942d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_incomplete_type_objc_at_encode, 943d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor EncodedTypeInfo->getTypeLoc())) 9443b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis return ExprError(); 9453b5904ba83fc9b968b1cd6f1ce78d01bfd6e8686Argyrios Kyrtzidis 946fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson std::string Str; 947fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson Context.getObjCEncodingForType(EncodedType, Str); 948fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 949fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // The type of @encode is the same as the type of the corresponding string, 950fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // which is an array type. 951fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.CharTy; 952fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson // A C++ string literal has a const-qualified element type (C++ 2.13.4p1). 9534e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) 954fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy.addConst(); 955fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson StrTy = Context.getConstantArrayType(StrTy, llvm::APInt(32, Str.size()+1), 956fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson ArrayType::Normal, 0); 957fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson } 9581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 95981d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return new (Context) ObjCEncodeExpr(StrTy, EncodedTypeInfo, AtLoc, RParenLoc); 960fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson} 961fc0f021b492cf28ee7b3a6bd4445ae569e6f15deAnders Carlsson 962f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCEncodeExpression(SourceLocation AtLoc, 963f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation EncodeLoc, 964f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 965f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ParsedType ty, 966f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 967e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info ? 96881d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TypeSourceInfo *TInfo; 96981d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor QualType EncodedType = GetTypeFromParser(ty, &TInfo); 97081d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor if (!TInfo) 97181d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor TInfo = Context.getTrivialTypeSourceInfo(EncodedType, 97281d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor PP.getLocForEndOfToken(LParenLoc)); 97385a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 97481d3466d037dc5844234c7a93dab21a6ad986e7dDouglas Gregor return BuildObjCEncodeExpression(AtLoc, TInfo, RParenLoc); 97585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 97685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 977651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesstatic bool HelperToDiagnoseMismatchedMethodsInGlobalPool(Sema &S, 978651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceLocation AtLoc, 979ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SourceLocation LParenLoc, 980ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SourceLocation RParenLoc, 981651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl *Method, 982651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodList &MethList) { 983651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodList *M = &MethList; 984651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool Warned = false; 985651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (M = M->getNext(); M; M=M->getNext()) { 986651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl *MatchingMethodDecl = M->Method; 987651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (MatchingMethodDecl == Method || 988651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines isa<ObjCImplDecl>(MatchingMethodDecl->getDeclContext()) || 989651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines MatchingMethodDecl->getSelector() != Method->getSelector()) 990651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines continue; 991651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!S.MatchTwoMethodDeclarations(Method, 992651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines MatchingMethodDecl, Sema::MMS_loose)) { 993651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!Warned) { 994651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Warned = true; 995651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(AtLoc, diag::warning_multiple_selectors) 996ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << Method->getSelector() << FixItHint::CreateInsertion(LParenLoc, "(") 997ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << FixItHint::CreateInsertion(RParenLoc, ")"); 998651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(Method->getLocation(), diag::note_method_declared_at) 999651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << Method->getDeclName(); 1000651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1001651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines S.Diag(MatchingMethodDecl->getLocation(), diag::note_method_declared_at) 1002651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << MatchingMethodDecl->getDeclName(); 1003651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1004651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1005651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return Warned; 1006651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 1007651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1008651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesstatic void DiagnoseMismatchedSelectors(Sema &S, SourceLocation AtLoc, 1009ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCMethodDecl *Method, 1010ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SourceLocation LParenLoc, 1011ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SourceLocation RParenLoc, 1012ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool WarnMultipleSelectors) { 1013ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (!WarnMultipleSelectors || 1014ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diags.isIgnored(diag::warning_multiple_selectors, SourceLocation())) 1015651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return; 1016651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool Warned = false; 1017651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (Sema::GlobalMethodPool::iterator b = S.MethodPool.begin(), 1018651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines e = S.MethodPool.end(); b != e; b++) { 1019651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // first, instance methods 1020651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodList &InstMethList = b->second.first; 1021ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (HelperToDiagnoseMismatchedMethodsInGlobalPool(S, AtLoc, LParenLoc, RParenLoc, 1022651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Method, InstMethList)) 1023651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Warned = true; 1024651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1025651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // second, class methods 1026651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodList &ClsMethList = b->second.second; 1027ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (HelperToDiagnoseMismatchedMethodsInGlobalPool(S, AtLoc, LParenLoc, RParenLoc, 1028ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Method, ClsMethList) || Warned) 1029651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return; 1030651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1031651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 1032651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1033f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCSelectorExpression(Selector Sel, 1034f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 1035f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation SelLoc, 1036f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 1037ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SourceLocation RParenLoc, 1038ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool WarnMultipleSelectors) { 103948f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian ObjCMethodDecl *Method = LookupInstanceMethodInGlobalPool(Sel, 104048f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian SourceRange(LParenLoc, RParenLoc), false, false); 104148f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian if (!Method) 104248f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 10437ff22ded2221f442b1f8ff78172938d04ec8c926Fariborz Jahanian SourceRange(LParenLoc, RParenLoc)); 10449464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian if (!Method) { 10459464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian if (const ObjCMethodDecl *OM = SelectorsForTypoCorrection(Sel)) { 10469464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian Selector MatchedSel = OM->getSelector(); 10479464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian SourceRange SelectorRange(LParenLoc.getLocWithOffset(1), 10489464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian RParenLoc.getLocWithOffset(-1)); 10499464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian Diag(SelLoc, diag::warn_undeclared_selector_with_typo) 10509464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian << Sel << MatchedSel 10519464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian << FixItHint::CreateReplacement(SelectorRange, MatchedSel.getAsString()); 10529464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian 10539464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian } else 10549464a08a743295d6aefaca1a751b5b4d371cf99cFariborz Jahanian Diag(SelLoc, diag::warn_undeclared_selector) << Sel; 1055651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else 1056ef8225444452a1486bd721f3285301fe84643b00Stephen Hines DiagnoseMismatchedSelectors(*this, AtLoc, Method, LParenLoc, RParenLoc, 1057ef8225444452a1486bd721f3285301fe84643b00Stephen Hines WarnMultipleSelectors); 10584c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian 10596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (Method && 10606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Method->getImplementationControl() != ObjCMethodDecl::Optional && 10616bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines !getSourceManager().isInSystemHeader(Method->getLocation())) { 106248f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian llvm::DenseMap<Selector, SourceLocation>::iterator Pos 106348f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian = ReferencedSelectors.find(Sel); 106448f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian if (Pos == ReferencedSelectors.end()) 106548f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian ReferencedSelectors.insert(std::make_pair(Sel, AtLoc)); 10664c91d89453c4a540d9ad697ceae89c8ef6049a6bFariborz Jahanian } 10673fe104154dd2e8ffb351142d74f308938b5c99bfFariborz Jahanian 106848f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian // In ARC, forbid the user from using @selector for 1069f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount. 10704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 1071f85e193739c953358c865005855253af4f68a497John McCall switch (Sel.getMethodFamily()) { 1072f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 1073f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 1074f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 1075f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 1076f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 1077f85e193739c953358c865005855253af4f68a497John McCall Diag(AtLoc, diag::err_arc_illegal_selector) << 1078f85e193739c953358c865005855253af4f68a497John McCall Sel << SourceRange(LParenLoc, RParenLoc); 1079f85e193739c953358c865005855253af4f68a497John McCall break; 1080f85e193739c953358c865005855253af4f68a497John McCall 1081f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 1082f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 1083f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 108480cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 1085f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 1086f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 1087f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 1088f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 10899670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 1090f85e193739c953358c865005855253af4f68a497John McCall break; 1091f85e193739c953358c865005855253af4f68a497John McCall } 1092f85e193739c953358c865005855253af4f68a497John McCall } 1093a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCSelType(); 10946d5a1c28593443f3973ef38f8fa042d59182412dDaniel Dunbar return new (Context) ObjCSelectorExpr(Ty, Sel, AtLoc, RParenLoc); 109585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 109685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1097f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallExprResult Sema::ParseObjCProtocolExpression(IdentifierInfo *ProtocolId, 1098f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation AtLoc, 1099f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation ProtoLoc, 1100f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation LParenLoc, 11017d24e289bea2accaaed79c6ca3e5cdd0c204ddc1Argyrios Kyrtzidis SourceLocation ProtoIdLoc, 1102f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall SourceLocation RParenLoc) { 11037d24e289bea2accaaed79c6ca3e5cdd0c204ddc1Argyrios Kyrtzidis ObjCProtocolDecl* PDecl = LookupProtocol(ProtocolId, ProtoIdLoc); 110485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner if (!PDecl) { 11053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner Diag(ProtoLoc, diag::err_undeclared_protocol) << ProtocolId; 110685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 110785a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 11081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1109a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner QualType Ty = Context.getObjCProtoType(); 1110a0af1fe67da29343cd182c51cd48d91b740ecef2Chris Lattner if (Ty.isNull()) 111185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner return true; 111214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff Ty = Context.getObjCObjectPointerType(Ty); 11137d24e289bea2accaaed79c6ca3e5cdd0c204ddc1Argyrios Kyrtzidis return new (Context) ObjCProtocolExpr(Ty, PDecl, AtLoc, ProtoIdLoc, RParenLoc); 111485a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 111585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 111626743b20e4a8c2a986e6453f0c38beba0afef633John McCall/// Try to capture an implicit reference to 'self'. 1117b942cb24a060435b18fef5b43eb33d77afc0d03aEli FriedmanObjCMethodDecl *Sema::tryCaptureObjCSelf(SourceLocation Loc) { 1118b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman DeclContext *DC = getFunctionLevelDeclContext(); 111926743b20e4a8c2a986e6453f0c38beba0afef633John McCall 112026743b20e4a8c2a986e6453f0c38beba0afef633John McCall // If we're not in an ObjC method, error out. Note that, unlike the 112126743b20e4a8c2a986e6453f0c38beba0afef633John McCall // C++ case, we don't require an instance method --- class methods 112226743b20e4a8c2a986e6453f0c38beba0afef633John McCall // still have a 'self', and we really do still need to capture it! 112326743b20e4a8c2a986e6453f0c38beba0afef633John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(DC); 112426743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (!method) 11256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 112626743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1127999713eea940f4e087cc3ac878689c5c5c7a7225Douglas Gregor tryCaptureVariable(method->getSelfDecl(), Loc); 112826743b20e4a8c2a986e6453f0c38beba0afef633John McCall 112926743b20e4a8c2a986e6453f0c38beba0afef633John McCall return method; 113026743b20e4a8c2a986e6453f0c38beba0afef633John McCall} 113126743b20e4a8c2a986e6453f0c38beba0afef633John McCall 11325c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregorstatic QualType stripObjCInstanceType(ASTContext &Context, QualType T) { 11335c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor if (T == Context.getObjCInstanceType()) 11345c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return Context.getObjCIdType(); 11355c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 11365c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return T; 11375c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor} 11385c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor 1139926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas GregorQualType Sema::getMessageSendResultType(QualType ReceiverType, 1140926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ObjCMethodDecl *Method, 1141926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage) { 1142926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor assert(Method && "Must have a method"); 1143926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1144926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Method->getSendResultType(); 1145926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1146926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // If a method has a related return type: 1147926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the method found is an instance method, but the message send 1148926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // was a class message send, T is the declared return type of the method 1149926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // found 1150926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (Method->isInstanceMethod() && isClassMessage) 11515c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1152926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1153926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is super, T is a pointer to the class of the 1154926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // enclosing method definition 1155926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (isSuperMessage) { 1156926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCMethodDecl *CurMethod = getCurMethodDecl()) 1157926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ObjCInterfaceDecl *Class = CurMethod->getClassInterface()) 1158926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType( 1159926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Context.getObjCInterfaceType(Class)); 1160926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor } 1161926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1162926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is the name of a class U, T is a pointer to U 1163926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->getAs<ObjCInterfaceType>() || 1164926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedInterfaceType()) 1165926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return Context.getObjCObjectPointerType(ReceiverType); 1166926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is of type Class or qualified Class type, 1167926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // T is the declared return type of the method. 1168926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (ReceiverType->isObjCClassType() || 1169926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReceiverType->isObjCQualifiedClassType()) 11705c16d635ff67fd8f083a704b7c82607ed49a8ba2Douglas Gregor return stripObjCInstanceType(Context, Method->getSendResultType()); 1171926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1172926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - if the receiver is id, qualified id, Class, or qualified Class, T 1173926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // is the receiver type, otherwise 1174926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor // - T is the type of the receiver expression. 1175926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return ReceiverType; 1176926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 1177926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 11787cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall/// Look for an ObjC method whose result type exactly matches the given type. 11797cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCallstatic const ObjCMethodDecl * 11807cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCallfindExplicitInstancetypeDeclarer(const ObjCMethodDecl *MD, 11817cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall QualType instancetype) { 1182651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (MD->getReturnType() == instancetype) 1183651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return MD; 11847cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 11857cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // For these purposes, a method in an @implementation overrides a 11867cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // declaration in the @interface. 11877cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (const ObjCImplDecl *impl = 11887cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall dyn_cast<ObjCImplDecl>(MD->getDeclContext())) { 11897cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall const ObjCContainerDecl *iface; 11907cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (const ObjCCategoryImplDecl *catImpl = 11917cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall dyn_cast<ObjCCategoryImplDecl>(impl)) { 11927cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall iface = catImpl->getCategoryDecl(); 11937cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall } else { 11947cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall iface = impl->getClassInterface(); 11957cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall } 11967cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 11977cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall const ObjCMethodDecl *ifaceMD = 11987cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall iface->getMethod(MD->getSelector(), MD->isInstanceMethod()); 11997cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (ifaceMD) return findExplicitInstancetypeDeclarer(ifaceMD, instancetype); 12007cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall } 12017cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 12027cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall SmallVector<const ObjCMethodDecl *, 4> overrides; 12037cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall MD->getOverriddenMethods(overrides); 12047cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall for (unsigned i = 0, e = overrides.size(); i != e; ++i) { 12057cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (const ObjCMethodDecl *result = 12067cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall findExplicitInstancetypeDeclarer(overrides[i], instancetype)) 12077cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall return result; 12087cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall } 12097cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 12106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 12117cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall} 12127cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 12137cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCallvoid Sema::EmitRelatedResultTypeNoteForReturn(QualType destType) { 12147cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // Only complain if we're in an ObjC method and the required return 12157cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // type doesn't match the method's declared return type. 12167cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(CurContext); 12177cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (!MD || !MD->hasRelatedResultType() || 1218651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Context.hasSameUnqualifiedType(destType, MD->getReturnType())) 12197cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall return; 12207cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 12217cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // Look for a method overridden by this method which explicitly uses 12227cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // 'instancetype'. 12237cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (const ObjCMethodDecl *overridden = 12247cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall findExplicitInstancetypeDeclarer(MD, Context.getObjCInstanceType())) { 12257cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall SourceLocation loc; 12267cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall SourceRange range; 1227651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TypeSourceInfo *TSI = overridden->getReturnTypeSourceInfo()) { 12287cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall range = TSI->getTypeLoc().getSourceRange(); 12297cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall loc = range.getBegin(); 12307cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall } 12317cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (loc.isInvalid()) 12327cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall loc = overridden->getLocation(); 12337cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall Diag(loc, diag::note_related_result_type_explicit) 12347cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall << /*current method*/ 1 << range; 12357cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall return; 12367cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall } 12377cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 12387cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // Otherwise, if we have an interesting method family, note that. 12397cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall // This should always trigger if the above didn't. 12407cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall if (ObjCMethodFamily family = MD->getMethodFamily()) 12417cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall Diag(MD->getLocation(), diag::note_related_result_type_family) 12427cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall << /*current method*/ 1 12437cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall << family; 12447cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall} 12457cca821e1acf0f1b4fe892c3111bfb2086832e4eJohn McCall 1246926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorvoid Sema::EmitRelatedResultTypeNote(const Expr *E) { 1247926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor E = E->IgnoreParenImpCasts(); 1248926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMessageExpr *MsgSend = dyn_cast<ObjCMessageExpr>(E); 1249926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!MsgSend) 1250926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1251926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1252926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor const ObjCMethodDecl *Method = MsgSend->getMethodDecl(); 1253926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method) 1254926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1255926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1256926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (!Method->hasRelatedResultType()) 1257926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1258651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1259651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Context.hasSameUnqualifiedType( 1260651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Method->getReturnType().getNonReferenceType(), MsgSend->getType())) 1261926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor return; 1262651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1263651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!Context.hasSameUnqualifiedType(Method->getReturnType(), 1264e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Context.getObjCInstanceType())) 1265e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return; 1266e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 1267926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor Diag(Method->getLocation(), diag::note_related_result_type_inferred) 1268926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << Method->isInstanceMethod() << Method->getSelector() 1269926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor << MsgSend->getType(); 1270926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor} 127126743b20e4a8c2a986e6453f0c38beba0afef633John McCall 1272926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregorbool Sema::CheckMessageArgumentTypes(QualType ReceiverType, 1273416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko MultiExprArg Args, 1274416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko Selector Sel, 1275376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian ArrayRef<SourceLocation> SelectorLocs, 1276376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian ObjCMethodDecl *Method, 1277926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool isClassMessage, bool isSuperMessage, 1278637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar SourceLocation lbrac, SourceLocation rbrac, 1279f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType &ReturnType, ExprValueKind &VK) { 1280f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SourceLocation SelLoc; 1281f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (!SelectorLocs.empty() && SelectorLocs.front().isValid()) 1282f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SelLoc = SelectorLocs.front(); 1283f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis else 1284f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SelLoc = lbrac; 1285f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis 1286637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar if (!Method) { 12876660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar // Apply default argument promotion as for (C99 6.5.2.2p6). 1288416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko for (unsigned i = 0, e = Args.size(); i != e; i++) { 128992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 129092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 129192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 129248f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall ExprResult result; 129348f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall if (getLangOpts().DebuggerSupport) { 129448f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall QualType paramTy; // ignored 1295f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis result = checkUnknownAnyArg(SelLoc, Args[i], paramTy); 129648f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall } else { 129748f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall result = DefaultArgumentPromotion(Args[i]); 129848f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall } 129948f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall if (result.isInvalid()) 1300429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return true; 1301ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Args[i] = result.get(); 130292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 13036660c8a4cc2115929d92be83bbc54c307002a321Daniel Dunbar 1304f85e193739c953358c865005855253af4f68a497John McCall unsigned DiagID; 13054e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1306f85e193739c953358c865005855253af4f68a497John McCall DiagID = diag::err_arc_method_not_found; 1307f85e193739c953358c865005855253af4f68a497John McCall else 1308f85e193739c953358c865005855253af4f68a497John McCall DiagID = isClassMessage ? diag::warn_class_method_not_found 1309f85e193739c953358c865005855253af4f68a497John McCall : diag::warn_inst_method_not_found; 13109f00b1d3962147a2fe049b8b45f70680bc12fbc1Fariborz Jahanian if (!getLangOpts().DebuggerSupport) { 1311419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian const ObjCMethodDecl *OMD = SelectorsForTypoCorrection(Sel, ReceiverType); 1312cd9c9b5c464419116cc00145286589b13fd9eadfFariborz Jahanian if (OMD && !OMD->isInvalidDecl()) { 1313419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian if (getLangOpts().ObjCAutoRefCount) 1314419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian DiagID = diag::error_method_not_found_with_typo; 1315419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian else 1316419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian DiagID = isClassMessage ? diag::warn_class_method_not_found_with_typo 1317419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian : diag::warn_instance_method_not_found_with_typo; 1318d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian Selector MatchedSel = OMD->getSelector(); 1319d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian SourceRange SelectorRange(SelectorLocs.front(), SelectorLocs.back()); 1320419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian Diag(SelLoc, DiagID) 1321419245e0719e1785e4eb3954ddaee122e921c738Fariborz Jahanian << Sel<< isClassMessage << MatchedSel 1322d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian << FixItHint::CreateReplacement(SelectorRange, MatchedSel.getAsString()); 1323d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian } 1324d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian else 1325d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian Diag(SelLoc, DiagID) 1326d395e34ae7aeeeaf9a37a12bc0f6de87158c95c3Fariborz Jahanian << Sel << isClassMessage << SourceRange(SelectorLocs.front(), 1327376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian SelectorLocs.back()); 13289f00b1d3962147a2fe049b8b45f70680bc12fbc1Fariborz Jahanian // Find the class to which we are sending this message. 13299f00b1d3962147a2fe049b8b45f70680bc12fbc1Fariborz Jahanian if (ReceiverType->isObjCObjectPointerType()) { 133014040142a3b3c1029092bc1f7c51e347c3fa8f89Fariborz Jahanian if (ObjCInterfaceDecl *Class = 133114040142a3b3c1029092bc1f7c51e347c3fa8f89Fariborz Jahanian ReceiverType->getAs<ObjCObjectPointerType>()->getInterfaceDecl()) 133214040142a3b3c1029092bc1f7c51e347c3fa8f89Fariborz Jahanian Diag(Class->getLocation(), diag::note_receiver_class_declared); 13339f00b1d3962147a2fe049b8b45f70680bc12fbc1Fariborz Jahanian } 13349f00b1d3962147a2fe049b8b45f70680bc12fbc1Fariborz Jahanian } 133548218c60d6b53b7880917d1366ee716dec2145caJohn McCall 133648218c60d6b53b7880917d1366ee716dec2145caJohn McCall // In debuggers, we want to use __unknown_anytype for these 133748218c60d6b53b7880917d1366ee716dec2145caJohn McCall // results so that clients can cast them. 13384e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DebuggerSupport) { 133948218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.UnknownAnyTy; 134048218c60d6b53b7880917d1366ee716dec2145caJohn McCall } else { 134148218c60d6b53b7880917d1366ee716dec2145caJohn McCall ReturnType = Context.getObjCIdType(); 134248218c60d6b53b7880917d1366ee716dec2145caJohn McCall } 1343f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK = VK_RValue; 1344637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar return false; 1345637cebb67c59765e1412c589550c8c9ba001baebDaniel Dunbar } 13461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1347926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType = getMessageSendResultType(ReceiverType, Method, isClassMessage, 1348926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor isSuperMessage); 1349651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines VK = Expr::getValueKindForType(Method->getReturnType()); 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135191e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar unsigned NumNamedArgs = Sel.getNumArgs(); 13524f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // Method might have more arguments than selector indicates. This is due 13534f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // to addition of c-style arguments in method. 13544f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian if (Method->param_size() > Sel.getNumArgs()) 13554f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian NumNamedArgs = Method->param_size(); 13564f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian // FIXME. This need be cleaned up. 1357416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko if (Args.size() < NumNamedArgs) { 1358f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis Diag(SelLoc, diag::err_typecheck_call_too_few_args) 1359416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko << 2 << NumNamedArgs << static_cast<unsigned>(Args.size()); 13604f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian return false; 13614f4fd92c6c64ecbc65507f63ddd09211f732622cFariborz Jahanian } 136291e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 1363312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner bool IsError = false; 136491e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar for (unsigned i = 0; i < NumNamedArgs; i++) { 136592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // We can't do any type-checking on a type-dependent argument. 136692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 136792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 136892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 136985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner Expr *argExpr = Args[i]; 137092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1371ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ParmVarDecl *param = Method->parameters()[i]; 137285a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner assert(argExpr && "CheckMessageArgumentTypes(): missing expression"); 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Strip the unbridged-cast placeholder expression off unless it's 13755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // a consumed argument. 13765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (argExpr->hasPlaceholderType(BuiltinType::ARCUnbridgedCast) && 13775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall !param->hasAttr<CFConsumedAttr>()) 13785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall argExpr = stripARCUnbridgedCast(argExpr); 13795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 1380b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall // If the parameter is __unknown_anytype, infer its type 1381b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall // from the argument. 1382b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall if (param->getType() == Context.UnknownAnyTy) { 138348f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall QualType paramType; 1384f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis ExprResult argE = checkUnknownAnyArg(SelLoc, argExpr, paramType); 138548f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall if (argE.isInvalid()) { 1386b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall IsError = true; 138748f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall } else { 1388ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Args[i] = argE.get(); 1389b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall 139048f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall // Update the parameter type in-place. 139148f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall param->setType(paramType); 139248f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall } 139348f904271effd381ec3c1ae33b97d1ec7d95860aJohn McCall continue; 1394b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall } 1395b8a8de316dade43fff95d7bfd2cfaa367f53faeaJohn McCall 1396688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (RequireCompleteType(argExpr->getSourceRange().getBegin(), 13975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param->getType(), 1398d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_call_incomplete_argument, argExpr)) 1399688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor return true; 1400688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor 1401745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian InitializedEntity Entity = InitializedEntity::InitializeParameter(Context, 14025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall param); 1403ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ExprResult ArgE = PerformCopyInitialization(Entity, SelLoc, argExpr); 1404688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor if (ArgE.isInvalid()) 1405688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor IsError = true; 1406688fc9b9b4323a294f5bf4f8a83f7c365edec573Douglas Gregor else 1407ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Args[i] = ArgE.getAs<Expr>(); 140885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner } 140991e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 141091e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Promote additional arguments to variadic methods. 141191e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar if (Method->isVariadic()) { 1412416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko for (unsigned i = NumNamedArgs, e = Args.size(); i < e; ++i) { 141392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Args[i]->isTypeDependent()) 141492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor continue; 141592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1416d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose ExprResult Arg = DefaultVariadicArgumentPromotion(Args[i], VariadicMethod, 14176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 1418429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley IsError |= Arg.isInvalid(); 1419ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Args[i] = Arg.get(); 142092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 142191e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } else { 142291e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar // Check for extra arguments to non-variadic methods. 1423416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko if (Args.size() != NumNamedArgs) { 14241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Args[NumNamedArgs]->getLocStart(), 1425fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner diag::err_typecheck_call_too_many_args) 1426416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko << 2 /*method*/ << NumNamedArgs << static_cast<unsigned>(Args.size()) 1427ccfa9639f8d09733bcf1c2572c5bd3daba5bd632Eric Christopher << Method->getSourceRange() 1428fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << SourceRange(Args[NumNamedArgs]->getLocStart(), 1429416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko Args.back()->getLocEnd()); 143091e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 143191e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar } 143291e19b2029447e75d2c7730ff888cc396874685bDaniel Dunbar 1433416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko DiagnoseSentinelCalls(Method, SelLoc, Args); 143429c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 143529c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas // Do additional checkings on method. 1436416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko IsError |= CheckObjCMethodCall( 1437ecf119c68b9f20f022965fb4875f3fa1d4ffef70Robert Wilhelm Method, SelLoc, makeArrayRef<const Expr *>(Args.data(), Args.size())); 143829c3f814b64808c6dac4597b61a50ceecdf141fcJean-Daniel Dupas 1439312531a8cd69c562d5687bd69fd334be99d87320Chris Lattner return IsError; 144085a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 144185a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 1442651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesbool Sema::isSelfExpr(Expr *RExpr) { 1443f2d74cc083e1a83838acf99d2e1ca260d1c54742Fariborz Jahanian // 'self' is objc 'self' in an objc method only. 1444651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl *Method = 1445651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines dyn_cast_or_null<ObjCMethodDecl>(CurContext->getNonClosureAncestor()); 1446651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return isSelfExpr(RExpr, Method); 1447651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 1448651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1449651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesbool Sema::isSelfExpr(Expr *receiver, const ObjCMethodDecl *method) { 14504b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (!method) return false; 14514b9c2d235fb9449e249d74f48ecfec601650de93John McCall 1452f85e193739c953358c865005855253af4f68a497John McCall receiver = receiver->IgnoreParenLValueCasts(); 1453f85e193739c953358c865005855253af4f68a497John McCall if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(receiver)) 14544b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (DRE->getDecl() == method->getSelfDecl()) 1455c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return true; 1456c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor return false; 14576b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff} 14586b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff 14593c3b7f90a863af43fa63043d396553ecf205351cJohn McCall/// LookupMethodInType - Look up a method in an ObjCObjectType. 14603c3b7f90a863af43fa63043d396553ecf205351cJohn McCallObjCMethodDecl *Sema::LookupMethodInObjectType(Selector sel, QualType type, 14613c3b7f90a863af43fa63043d396553ecf205351cJohn McCall bool isInstance) { 14623c3b7f90a863af43fa63043d396553ecf205351cJohn McCall const ObjCObjectType *objType = type->castAs<ObjCObjectType>(); 14633c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCInterfaceDecl *iface = objType->getInterface()) { 14643c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Look it up in the main interface (and categories, etc.) 14653c3b7f90a863af43fa63043d396553ecf205351cJohn McCall if (ObjCMethodDecl *method = iface->lookupMethod(sel, isInstance)) 14663c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 14673c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 14683c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Okay, look for "private" methods declared in any 14693c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // @implementations we've seen. 1470e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks if (ObjCMethodDecl *method = iface->lookupPrivateMethod(sel, isInstance)) 1471e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks return method; 14723c3b7f90a863af43fa63043d396553ecf205351cJohn McCall } 14733c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 14743c3b7f90a863af43fa63043d396553ecf205351cJohn McCall // Check qualifiers. 1475651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *I : objType->quals()) 1476651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ObjCMethodDecl *method = I->lookupMethod(sel, isInstance)) 14773c3b7f90a863af43fa63043d396553ecf205351cJohn McCall return method; 14783c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 14796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 14803c3b7f90a863af43fa63043d396553ecf205351cJohn McCall} 14813c3b7f90a863af43fa63043d396553ecf205351cJohn McCall 148261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// LookupMethodInQualifiedType - Lookups up a method in protocol qualifier 148361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian/// list of a qualified objective pointer type. 148461478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz JahanianObjCMethodDecl *Sema::LookupMethodInQualifiedType(Selector Sel, 148561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian const ObjCObjectPointerType *OPT, 148661478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian bool Instance) 148761478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian{ 14886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCMethodDecl *MD = nullptr; 1489651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *PROTO : OPT->quals()) { 149061478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian if ((MD = PROTO->lookupMethod(Sel, Instance))) { 149161478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian return MD; 149261478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 149361478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian } 14946bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 149561478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian} 149661478065fbcafcf5295bb0fb796c9a92f2d861e0Fariborz Jahanian 14979879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanianstatic void DiagnoseARCUseOfWeakReceiver(Sema &S, Expr *Receiver) { 14989879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (!Receiver) 1499289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian return; 1500289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 150131170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Receiver)) 150231170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian Receiver = OVE->getSourceExpr(); 150331170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian 15049879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian Expr *RExpr = Receiver->IgnoreParenImpCasts(); 15059879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian SourceLocation Loc = RExpr->getLocStart(); 15069879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian QualType T = RExpr->getType(); 15076bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const ObjCPropertyDecl *PDecl = nullptr; 15086bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const ObjCMethodDecl *GDecl = nullptr; 15099879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PseudoObjectExpr *POE = dyn_cast<PseudoObjectExpr>(RExpr)) { 15109879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian RExpr = POE->getSyntacticForm(); 15119879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (ObjCPropertyRefExpr *PRE = dyn_cast<ObjCPropertyRefExpr>(RExpr)) { 15129879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PRE->isImplicitProperty()) { 15139879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian GDecl = PRE->getImplicitPropertyGetter(); 15149879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (GDecl) { 1515651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines T = GDecl->getReturnType(); 15169879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 15179879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 15189879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian else { 15199879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian PDecl = PRE->getExplicitProperty(); 15209879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian if (PDecl) { 15219879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian T = PDecl->getType(); 15229879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 15239879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 1524289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian } 15259879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian } 152631170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian else if (ObjCMessageExpr *ME = dyn_cast<ObjCMessageExpr>(RExpr)) { 152731170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian // See if receiver is a method which envokes a synthesized getter 152831170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian // backing a 'weak' property. 152931170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian ObjCMethodDecl *Method = ME->getMethodDecl(); 153004bec39d61f2b392d798882c9141fecf3ca653c5Jordan Rose if (Method && Method->getSelector().getNumArgs() == 0) { 153104bec39d61f2b392d798882c9141fecf3ca653c5Jordan Rose PDecl = Method->findPropertyDecl(); 153231170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian if (PDecl) 153331170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian T = PDecl->getType(); 153431170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian } 153531170398278ff9ef08f6b6427ee596e2ca82a790Fariborz Jahanian } 15369879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian 15373437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose if (T.getObjCLifetime() != Qualifiers::OCL_Weak) { 15383437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose if (!PDecl) 15393437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose return; 15403437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose if (!(PDecl->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_weak)) 15413437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose return; 1542289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian } 15433437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose 15443437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose S.Diag(Loc, diag::warn_receiver_is_weak) 15453437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose << ((!PDecl && !GDecl) ? 0 : (PDecl ? 1 : 2)); 15463437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose 15473437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose if (PDecl) 15489879556f250c7b692228e834d7fca8f1cb118bf6Fariborz Jahanian S.Diag(PDecl->getLocation(), diag::note_property_declare); 15493437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose else if (GDecl) 15503437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose S.Diag(GDecl->getLocation(), diag::note_method_declared_at) << GDecl; 15513437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose 15523437daad71d8694d4ddd25418751f2763c0f8979Jordan Rose S.Diag(Loc, diag::note_arc_assign_to_strong); 1553289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian} 1554289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 15557f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// HandleExprPropertyRefExpr - Handle foo.bar where foo is a pointer to an 15567f81652f97a69ae8b514893a69c0245253687e55Chris Lattner/// objective C interface. This is a property reference expression. 155760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 15587f81652f97a69ae8b514893a69c0245253687e55Chris LattnerHandleExprPropertyRefExpr(const ObjCObjectPointerType *OPT, 15596326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Expr *BaseExpr, SourceLocation OpLoc, 15606326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian DeclarationName MemberName, 15618ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation MemberLoc, 15628ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SourceLocation SuperLoc, QualType SuperType, 15638ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian bool Super) { 15647f81652f97a69ae8b514893a69c0245253687e55Chris Lattner const ObjCInterfaceType *IFaceT = OPT->getInterfaceType(); 15657f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCInterfaceDecl *IFace = IFaceT->getDecl(); 1566c470442fe144b93c2877134559d0067b3215289dBenjamin Kramer 1567c1aa40cdc8f42c3a5505ebb54aa54f3e5086b7efBenjamin Kramer if (!MemberName.isIdentifier()) { 1568109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor Diag(MemberLoc, diag::err_invalid_property_name) 1569109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor << MemberName << QualType(OPT, 0); 1570109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor return ExprError(); 1571109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor } 1572c1aa40cdc8f42c3a5505ebb54aa54f3e5086b7efBenjamin Kramer 1573c1aa40cdc8f42c3a5505ebb54aa54f3e5086b7efBenjamin Kramer IdentifierInfo *Member = MemberName.getAsIdentifierInfo(); 1574109ec1b05664e35e710785314c12552307f39a7dDouglas Gregor 1575b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange BaseRange = Super? SourceRange(SuperLoc) 1576b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : BaseExpr->getSourceRange(); 1577b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OPT->getPointeeType(), 1578d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_property_not_found_forward_class, 1579d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor MemberName, BaseRange)) 15808b1aba495744bea7093899a65f08c3987263061cFariborz Jahanian return ExprError(); 1581b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 15827f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Search for a declared property first. 1583b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian if (ObjCPropertyDecl *PD = IFace->FindPropertyDeclaration(Member)) { 15847f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 15857f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 15867f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 15878ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 1588ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) 1589ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, VK_LValue, 1590ef8225444452a1486bd721f3285301fe84643b00Stephen Hines OK_ObjCProperty, MemberLoc, SuperLoc, SuperType); 15918ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 1592ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) 1593ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, VK_LValue, 1594ef8225444452a1486bd721f3285301fe84643b00Stephen Hines OK_ObjCProperty, MemberLoc, BaseExpr); 15957f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 15967f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check protocols on qualified interfaces. 1597651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *I : OPT->quals()) 1598651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ObjCPropertyDecl *PD = I->FindPropertyDeclaration(Member)) { 15997f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check whether we can reference this property. 16007f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(PD, MemberLoc)) 16017f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 1602289677da2d3ef2f015af8b7e41150053891589f7Fariborz Jahanian 16038ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 1604ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) ObjCPropertyRefExpr( 1605ef8225444452a1486bd721f3285301fe84643b00Stephen Hines PD, Context.PseudoObjectTy, VK_LValue, OK_ObjCProperty, MemberLoc, 1606ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SuperLoc, SuperType); 16078ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 1608ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) 1609ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCPropertyRefExpr(PD, Context.PseudoObjectTy, VK_LValue, 1610ef8225444452a1486bd721f3285301fe84643b00Stephen Hines OK_ObjCProperty, MemberLoc, BaseExpr); 16117f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 16127f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If that failed, look for an "implicit" property by seeing if the nullary 16137f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // selector is implemented. 16147f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 16157f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // FIXME: The logic for looking up nullary and unary selectors should be 16167f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // shared with the code in ActOnInstanceMessage. 16177f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 16187f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector Sel = PP.getSelectorTable().getNullarySelector(Member); 16197f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Getter = IFace->lookupInstanceMethod(Sel); 162027569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 162127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 162227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Getter) 162327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Getter = LookupMethodInQualifiedType(Sel, OPT, true); 16247f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 16257f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, check for 'private' methods. 16267f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Getter) 162774b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Getter = IFace->lookupPrivateMethod(Sel); 16287f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 16297f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Getter) { 16307f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Check if we can reference this property. 16317f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (DiagnoseUseOfDecl(Getter, MemberLoc)) 16327f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 16337f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 16347f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If we found a getter then this may be a valid dot-reference, we 16357f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // will look for the matching setter, in case it is needed. 16367f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Selector SetterSel = 163780e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl SelectorTable::constructSetterSelector(PP.getIdentifierTable(), 163880e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl PP.getSelectorTable(), Member); 16397f81652f97a69ae8b514893a69c0245253687e55Chris Lattner ObjCMethodDecl *Setter = IFace->lookupInstanceMethod(SetterSel); 1640b5b155cb8bd2460693572bab5ce14dabf1a27d2fFariborz Jahanian 164127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian // May be founf in property's qualified list. 164227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Setter) 164327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Setter = LookupMethodInQualifiedType(SetterSel, OPT, true); 164427569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 16457f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (!Setter) { 16467f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // If this reference is in an @implementation, also check for 'private' 16477f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // methods. 164874b2756bc1f1f5f7c189996fe7e4cd3efef70263Fariborz Jahanian Setter = IFace->lookupPrivateMethod(SetterSel); 16497f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 165027569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 16517f81652f97a69ae8b514893a69c0245253687e55Chris Lattner if (Setter && DiagnoseUseOfDecl(Setter, MemberLoc)) 16527f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 16537f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 165499130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Getter || Setter) { 16558ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian if (Super) 1656ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) 1657ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCPropertyRefExpr(Getter, Setter, Context.PseudoObjectTy, VK_LValue, 1658ef8225444452a1486bd721f3285301fe84643b00Stephen Hines OK_ObjCProperty, MemberLoc, SuperLoc, SuperType); 16598ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian else 1660ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) 1661ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCPropertyRefExpr(Getter, Setter, Context.PseudoObjectTy, VK_LValue, 1662ef8225444452a1486bd721f3285301fe84643b00Stephen Hines OK_ObjCProperty, MemberLoc, BaseExpr); 16638ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian 16647f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 16657f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 16667f81652f97a69ae8b514893a69c0245253687e55Chris Lattner // Attempt to correct for typos in property names. 16672f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain DeclFilterCCC<ObjCPropertyDecl> Validator; 16682f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (TypoCorrection Corrected = CorrectTypo( 16696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines DeclarationNameInfo(MemberName, MemberLoc), LookupOrdinaryName, 16706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, nullptr, Validator, CTK_ErrorRecovery, IFace, false, OPT)) { 16712d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith diagnoseTypo(Corrected, PDiag(diag::err_property_not_found_suggest) 16722d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith << MemberName << QualType(OPT, 0)); 1673d8bba9c15230d2b1b3893e272106aa79efc50251Douglas Gregor DeclarationName TypoResult = Corrected.getCorrection(); 16746326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return HandleExprPropertyRefExpr(OPT, BaseExpr, OpLoc, 16756326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian TypoResult, MemberLoc, 16768ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian SuperLoc, SuperType, Super); 16777f81652f97a69ae8b514893a69c0245253687e55Chris Lattner } 167841aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian ObjCInterfaceDecl *ClassDeclared; 167941aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (ObjCIvarDecl *Ivar = 168041aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian IFace->lookupInstanceVariable(Member, ClassDeclared)) { 168141aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian QualType T = Ivar->getType(); 168241aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian if (const ObjCObjectPointerType * OBJPT = 168341aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian T->getAsObjCInterfacePointerType()) { 1684b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(MemberLoc, OBJPT->getPointeeType(), 1685d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor diag::err_property_not_as_forward_class, 1686d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor MemberName, BaseExpr)) 1687b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 168841aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 16896326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian Diag(MemberLoc, 16906326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian diag::err_ivar_access_using_property_syntax_suggest) 16916326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << MemberName << QualType(OPT, 0) << Ivar->getDeclName() 16926326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian << FixItHint::CreateReplacement(OpLoc, "->"); 16936326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian return ExprError(); 169441aadbc530f071fe5ccbfc2560899a4a2e74c057Fariborz Jahanian } 1695b9d4fc1f54924a7b242fb763192a40c19fa6103dChris Lattner 16967f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(MemberLoc, diag::err_property_not_found) 16977f81652f97a69ae8b514893a69c0245253687e55Chris Lattner << MemberName << QualType(OPT, 0); 169899130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian if (Setter) 16997f81652f97a69ae8b514893a69c0245253687e55Chris Lattner Diag(Setter->getLocation(), diag::note_getter_unavailable) 170099130e5a02e93282cb393d2cba0d3dffc10abc01Fariborz Jahanian << MemberName << BaseExpr->getSourceRange(); 17017f81652f97a69ae8b514893a69c0245253687e55Chris Lattner return ExprError(); 17027f81652f97a69ae8b514893a69c0245253687e55Chris Lattner} 17037f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 17047f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 17057f81652f97a69ae8b514893a69c0245253687e55Chris Lattner 170660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema:: 1707eb483eb3ee80300f15d6d13573d82493c2194461Chris LattnerActOnClassPropertyRefExpr(IdentifierInfo &receiverName, 1708eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IdentifierInfo &propertyName, 1709eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation receiverNameLoc, 1710eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner SourceLocation propertyNameLoc) { 17111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1712f06cdae9c68dfc4191fbf6b9e5ea0fd748488d88Douglas Gregor IdentifierInfo *receiverNamePtr = &receiverName; 1713c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor ObjCInterfaceDecl *IFace = getObjCInterfaceDecl(receiverNamePtr, 1714c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor receiverNameLoc); 1715926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1716926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor bool IsSuper = false; 17176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!IFace) { 1718eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // If the "receiver" is 'super' in a method, handle it as an expression-like 1719eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // property reference. 172026743b20e4a8c2a986e6453f0c38beba0afef633John McCall if (receiverNamePtr->isStr("super")) { 1721926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor IsSuper = true; 1722926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor 1723b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman if (ObjCMethodDecl *CurMethod = tryCaptureObjCSelf(receiverNameLoc)) { 1724eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner if (CurMethod->isInstanceMethod()) { 17256fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian ObjCInterfaceDecl *Super = 17266fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian CurMethod->getClassInterface()->getSuperClass(); 17276fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian if (!Super) { 17286fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian // The current class does not have a superclass. 17296fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian Diag(receiverNameLoc, diag::error_root_class_cannot_use_super) 17306fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian << CurMethod->getClassInterface()->getIdentifier(); 17316fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian return ExprError(); 17326fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian } 17336fc9e7ad3576dcbee3028a42ef5dac931df8754cFariborz Jahanian QualType T = Context.getObjCInterfaceType(Super); 1734eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner T = Context.getObjCObjectPointerType(T); 17356bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 1736eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return HandleExprPropertyRefExpr(T->getAsObjCInterfacePointerType(), 17376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*BaseExpr*/nullptr, 17386326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian SourceLocation()/*OpLoc*/, 17396326e05fe8c2ff92b65b4759a91e45fad5ef886fFariborz Jahanian &propertyName, 17408ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian propertyNameLoc, 17418ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian receiverNameLoc, T, true); 1742eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 1743eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner 1744eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Otherwise, if this is a class method, try dispatching to our 1745eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // superclass. 1746eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner IFace = CurMethod->getClassInterface()->getSuperClass(); 1747eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 174826743b20e4a8c2a986e6453f0c38beba0afef633John McCall } 17496bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 17506bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!IFace) { 1751651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(receiverNameLoc, diag::err_expected_either) << tok::identifier 1752651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << tok::l_paren; 1753eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner return ExprError(); 1754eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner } 17558149a5786def747af783a9e3c22714bb7ab42b9cFariborz Jahanian } 17561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1757eb483eb3ee80300f15d6d13573d82493c2194461Chris Lattner // Search for a declared property first. 175861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff Selector Sel = PP.getSelectorTable().getNullarySelector(&propertyName); 175917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Getter = IFace->lookupClassMethod(Sel); 176061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 176161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, check for 'private' methods. 176261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Getter) 17636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Getter = IFace->lookupPrivateClassMethod(Sel); 176461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 176561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter) { 176661f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // FIXME: refactor/share with ActOnMemberReference(). 176761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Check if we can reference this property. 176861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (DiagnoseUseOfDecl(Getter, propertyNameLoc)) 176961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 177061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 17711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look for the matching setter, in case it is needed. 17731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Selector SetterSel = 177480e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl SelectorTable::constructSetterSelector(PP.getIdentifierTable(), 177580e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl PP.getSelectorTable(), 177680e8ea92d6dcaa05165dcb4730485db82dcd4629Adrian Prantl &propertyName); 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis ObjCMethodDecl *Setter = IFace->lookupClassMethod(SetterSel); 177961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (!Setter) { 178061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // If this reference is in an @implementation, also check for 'private' 178161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // methods. 17826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Setter = IFace->lookupPrivateClassMethod(SetterSel); 178361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 178461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff // Look through local category implementations associated with the class. 17851cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis if (!Setter) 17861cb35dd4840d21cec58648361180d5688446a9caArgyrios Kyrtzidis Setter = IFace->getCategoryClassMethod(SetterSel); 178761f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 178861f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Setter && DiagnoseUseOfDecl(Setter, propertyNameLoc)) 178961f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(); 179061f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 179161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff if (Getter || Setter) { 1792926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor if (IsSuper) 1793ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) 1794ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ObjCPropertyRefExpr(Getter, Setter, Context.PseudoObjectTy, VK_LValue, 1795ef8225444452a1486bd721f3285301fe84643b00Stephen Hines OK_ObjCProperty, propertyNameLoc, receiverNameLoc, 1796ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Context.getObjCInterfaceType(IFace)); 1797ef8225444452a1486bd721f3285301fe84643b00Stephen Hines 1798ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return new (Context) ObjCPropertyRefExpr( 1799ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Getter, Setter, Context.PseudoObjectTy, VK_LValue, OK_ObjCProperty, 1800ef8225444452a1486bd721f3285301fe84643b00Stephen Hines propertyNameLoc, receiverNameLoc, IFace); 180161f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff } 180261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff return ExprError(Diag(propertyNameLoc, diag::err_property_not_found) 180361f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff << &propertyName << Context.getObjCInterfaceType(IFace)); 180461f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff} 180561f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 18062f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainnamespace { 18072f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 18082f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrainclass ObjCInterfaceOrSuperCCC : public CorrectionCandidateCallback { 18092f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain public: 18102f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC(ObjCMethodDecl *Method) { 18112f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // Determine whether "super" is acceptable in the current context. 18122f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Method && Method->getClassInterface()) 18132f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain WantObjCSuper = Method->getClassInterface()->getSuperClass(); 18142f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 18152f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 1816651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool ValidateCandidate(const TypoCorrection &candidate) override { 18172f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return candidate.getCorrectionDeclAs<ObjCInterfaceDecl>() || 18182f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain candidate.isKeyword("super"); 18192f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } 18202f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain}; 18212f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 18222f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain} 18232f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain 182447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas GregorSema::ObjCMessageKind Sema::getObjCMessageKind(Scope *S, 18251569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor IdentifierInfo *Name, 182647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor SourceLocation NameLoc, 182747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor bool IsSuper, 18281569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor bool HasTrailingDot, 1829b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &ReceiverType) { 1830b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = ParsedType(); 18311569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 183247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // If the identifier is "super" and there is no trailing dot, we're 183395f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // messaging super. If the identifier is "super" and there is a 183495f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // trailing dot, it's an instance message. 183595f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor if (IsSuper && S->isInObjcMethodScope()) 183695f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor return HasTrailingDot? ObjCInstanceMessage : ObjCSuperMessage; 183747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 183847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupResult Result(*this, Name, NameLoc, LookupOrdinaryName); 183947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor LookupName(Result, S); 184047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 184147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor switch (Result.getResultKind()) { 184247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFound: 1843ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Normal name lookup didn't find anything. If we're in an 1844ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor // Objective-C method, look for ivars. If we find one, we're done! 184595f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // FIXME: This is a hack. Ivar lookup should be part of normal 184695f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor // lookup. 1847ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (ObjCMethodDecl *Method = getCurMethodDecl()) { 1848ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis if (!Method->getClassInterface()) { 1849ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis // Fall back: let the parser try to parse it as an instance message. 1850ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis return ObjCInstanceMessage; 1851ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis } 1852ccc9e767f21cb9be55c98f9c7cb319134410184bArgyrios Kyrtzidis 1853ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ObjCInterfaceDecl *ClassDeclared; 1854ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor if (Method->getClassInterface()->lookupInstanceVariable(Name, 1855ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor ClassDeclared)) 1856ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor return ObjCInstanceMessage; 1857ed46442adea496dfb01dbbe53ace583d5614e79aDouglas Gregor } 185895f4292cc526c629fead321c7fcfd4fe0f3bc66eDouglas Gregor 185947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Break out; we'll perform typo correction below. 186047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor break; 186147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 186247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::NotFoundInCurrentInstantiation: 186347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundOverloaded: 186447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::FoundUnresolvedValue: 186547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Ambiguous: 186647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor Result.suppressDiagnostics(); 186747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 186847bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 186947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor case LookupResult::Found: { 18708348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // If the identifier is a class or not, and there is a trailing dot, 18718348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian // it's an instance message. 18728348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian if (HasTrailingDot) 18738348de33e92b8278a07a7573eb7ad3c166c02b0dFariborz Jahanian return ObjCInstanceMessage; 187447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // We found something. If it's a type, then we have a class 187547bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // message. Otherwise, it's an instance message. 187647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor NamedDecl *ND = Result.getFoundDecl(); 18771569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor QualType T; 18781569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(ND)) 18791569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getObjCInterfaceType(Class); 1880740991bdf8bb2638ff111ae2084791c52c1cee00Fariborz Jahanian else if (TypeDecl *Type = dyn_cast<TypeDecl>(ND)) { 18811569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor T = Context.getTypeDeclType(Type); 1882740991bdf8bb2638ff111ae2084791c52c1cee00Fariborz Jahanian DiagnoseUseOfDecl(Type, NameLoc); 1883740991bdf8bb2638ff111ae2084791c52c1cee00Fariborz Jahanian } 1884740991bdf8bb2638ff111ae2084791c52c1cee00Fariborz Jahanian else 18851569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCInstanceMessage; 18861569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor 18871569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // We have a class message, and T is the type we're 18881569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor // messaging. Build source-location information for it. 18891569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 1890b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ReceiverType = CreateParsedType(T, TSInfo); 18911569f95831a8c99e9f664137bf8f40e47ee3d90fDouglas Gregor return ObjCClassMessage; 189247bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 189347bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 189447bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor 18952f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ObjCInterfaceOrSuperCCC Validator(getCurMethodDecl()); 18962b17b472d2f503ee61c460ca23f226c2aebcdd62Kaelyn Uhrain if (TypoCorrection Corrected = 18972b17b472d2f503ee61c460ca23f226c2aebcdd62Kaelyn Uhrain CorrectTypo(Result.getLookupNameInfo(), Result.getLookupKind(), S, 18986bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, Validator, CTK_ErrorRecovery, nullptr, false, 18996bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, false)) { 19002f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain if (Corrected.isKeyword()) { 19012f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we've found the keyword "super" (the only keyword that would be 19022f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // returned by CorrectTypo), this is a send to super. 19032d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith diagnoseTypo(Corrected, 19042d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith PDiag(diag::err_unknown_receiver_suggest) << Name); 1905aaf87162c5fbfbf320072da3a8e83392e1bbf041Douglas Gregor return ObjCSuperMessage; 19062f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain } else if (ObjCInterfaceDecl *Class = 19072d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith Corrected.getCorrectionDeclAs<ObjCInterfaceDecl>()) { 19082f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // If we found a declaration, correct when it refers to an Objective-C 19092f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain // class. 19102d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith diagnoseTypo(Corrected, 19112d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith PDiag(diag::err_unknown_receiver_suggest) << Name); 19122f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain QualType T = Context.getObjCInterfaceType(Class); 19132f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain TypeSourceInfo *TSInfo = Context.getTrivialTypeSourceInfo(T, NameLoc); 19142f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain ReceiverType = CreateParsedType(T, TSInfo); 19152f4d88f4418afafbd0b22ce0f79cdead6f3a6f99Kaelyn Uhrain return ObjCClassMessage; 191647bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 191747bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor } 19182d67097ad41f4c2fe82ebce3f587e06498f1bd71Richard Smith 191947bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor // Fall back: let the parser try to parse it as an instance message. 192047bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor return ObjCInstanceMessage; 192147bd54392a4fd0f10e04de6a0420fd4838caaa0eDouglas Gregor} 192261f72cbd037e58f12cfe90cd442373f44092f030Steve Naroff 192360d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnSuperMessage(Scope *S, 19240fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 19250fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 19260fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 1927951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 19280fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 19290fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor MultiExprArg Args) { 19302725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Determine whether we are inside a method or not. 1931b942cb24a060435b18fef5b43eb33d77afc0d03aEli Friedman ObjCMethodDecl *Method = tryCaptureObjCSelf(SuperLoc); 1932f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Method) { 1933f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::err_invalid_receiver_to_message_super); 1934f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor return ExprError(); 1935f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor } 19362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1937f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Class = Method->getClassInterface(); 1938f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor if (!Class) { 1939f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Diag(SuperLoc, diag::error_no_super_class_message) 1940f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor << Method->getDeclName(); 19412725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 194215faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner } 19432725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1944f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor ObjCInterfaceDecl *Super = Class->getSuperClass(); 19452725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Super) { 1946f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // The current class does not have a superclass. 1947e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek Diag(SuperLoc, diag::error_root_class_cannot_use_super) 1948e00909a6e997ec33d9baa5312e9d27b52a3da770Ted Kremenek << Class->getIdentifier(); 19492725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 19502725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 19512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1952f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // We are in a method whose class has a superclass, so 'super' 1953f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // is acting as a keyword. 1954535a5d001b2035a7aa68ee368fbe44ec90e33740Jordan Rose if (Method->getSelector() == Sel) 1955535a5d001b2035a7aa68ee368fbe44ec90e33740Jordan Rose getCurFunction()->ObjCShouldCallSuper = false; 19569a1ecf0522ccb7a45577f856150c15af0ee1df2aNico Weber 1957535a5d001b2035a7aa68ee368fbe44ec90e33740Jordan Rose if (Method->isInstanceMethod()) { 1958f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in an instance method, this is an instance 1959f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // message to the superclass instance. 1960f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor QualType SuperTy = Context.getObjCInterfaceType(Super); 1961f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor SuperTy = Context.getObjCObjectPointerType(SuperTy); 19626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return BuildInstanceMessage(nullptr, SuperTy, SuperLoc, 19636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Sel, /*Method=*/nullptr, 19643fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer LBracLoc, SelectorLocs, RBracLoc, Args); 19652725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 1966f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor 1967f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // Since we are in a class method, this is a class message to 1968f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor // the superclass. 19696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return BuildClassMessage(/*ReceiverTypeInfo=*/nullptr, 1970f95861a4ab6bbd6a975ed079dd70eb1cc22f4467Douglas Gregor Context.getObjCInterfaceType(Super), 19716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SuperLoc, Sel, /*Method=*/nullptr, 19723fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer LBracLoc, SelectorLocs, RBracLoc, Args); 19732725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 19742725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 1975746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1976746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildClassMessageImplicit(QualType ReceiverType, 1977746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isSuperReceiver, 1978746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 1979746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 1980746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 1981746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 19826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeSourceInfo *receiverTypeInfo = nullptr; 1983746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis if (!ReceiverType.isNull()) 1984746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis receiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType); 1985746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1986746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildClassMessage(receiverTypeInfo, ReceiverType, 1987746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/isSuperReceiver ? Loc : SourceLocation(), 1988746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 1989746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 1990746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1991746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 1992746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 1993ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void applyCocoaAPICheck(Sema &S, const ObjCMessageExpr *Msg, 1994ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek unsigned DiagID, 1995ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek bool (*refactor)(const ObjCMessageExpr *, 1996ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const NSAPI &, edit::Commit &)) { 1997ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceLocation MsgLoc = Msg->getExprLoc(); 1998ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (S.Diags.isIgnored(DiagID, MsgLoc)) 1999ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 2000ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 2001ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek SourceManager &SM = S.SourceMgr; 2002ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::Commit ECommit(SM, S.LangOpts); 2003ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (refactor(Msg,*S.NSAPIObj, ECommit)) { 2004ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek DiagnosticBuilder Builder = S.Diag(MsgLoc, DiagID) 2005ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek << Msg->getSelector() << Msg->getSourceRange(); 2006ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek // FIXME: Don't emit diagnostic at all if fixits are non-commitable. 2007ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!ECommit.isCommitable()) 2008ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek return; 2009ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek for (edit::Commit::edit_iterator 2010ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek I = ECommit.edit_begin(), E = ECommit.edit_end(); I != E; ++I) { 2011ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const edit::Commit::Edit &Edit = *I; 2012ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek switch (Edit.Kind) { 2013ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Insert: 2014ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateInsertion(Edit.OrigLoc, 2015ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.Text, 2016ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 2017ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 2018ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_InsertFromRange: 2019ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint( 2020ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek FixItHint::CreateInsertionFromRange(Edit.OrigLoc, 2021ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.getInsertFromRange(SM), 2022ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Edit.BeforePrev)); 2023ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 2024ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek case edit::Commit::Act_Remove: 2025ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek Builder.AddFixItHint(FixItHint::CreateRemoval(Edit.getFileRange(SM))); 2026ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek break; 2027ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2028ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2029ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2030ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 2031ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 2032ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenekstatic void checkCocoaAPI(Sema &S, const ObjCMessageExpr *Msg) { 2033ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek applyCocoaAPICheck(S, Msg, diag::warn_objc_redundant_literal_use, 2034ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek edit::rewriteObjCRedundantCallWithLiteral); 2035ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek} 2036ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek 20372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C class message expression. 20382725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20392725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal class messages and 20402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// class messages to the superclass. 20412725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20422725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverTypeInfo Type source information that describes the 20432725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receiver of this message. This may be NULL, in which case we are 20442725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass and \p SuperLoc must be a valid source 20452725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// location. 20462725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 20472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The type of the object receiving the 20482725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When \p ReceiverTypeInfo is non-NULL, this is the same 20492725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// type as that refers to. For a superclass send, this is the type of 20502725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// the superclass. 20512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20522725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 20532725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass message. 20542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 20552725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 20562725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2057f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this class message is invoking, if 2058f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 2059f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 20602725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 20612725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2062efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param RBracLoc The location of the closing square bracket ']'. 20632725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2064efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param ArgsIn The message arguments. 206560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildClassMessage(TypeSourceInfo *ReceiverTypeInfo, 20660fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor QualType ReceiverType, 20670fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation SuperLoc, 20680fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Selector Sel, 20690fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor ObjCMethodDecl *Method, 20700fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation LBracLoc, 2071951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 20720fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation RBracLoc, 2073746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 2074746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 20750fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc 20769497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange().getBegin(); 20770fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 20780fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 20790fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 20800fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 20810fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 2082f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SourceLocation SelLoc; 2083f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (!SelectorLocs.empty() && SelectorLocs.front().isValid()) 2084f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SelLoc = SelectorLocs.front(); 2085f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis else 2086f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SelLoc = Loc; 2087f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis 208892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (ReceiverType->isDependentType()) { 208992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver type is dependent, we can't type-check anything 209092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 209192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 20925354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 209392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 2094ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return ObjCMessageExpr::Create( 2095ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Context, ReceiverType, VK_RValue, LBracLoc, ReceiverTypeInfo, Sel, 2096ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SelectorLocs, /*Method=*/nullptr, makeArrayRef(Args, NumArgs), RBracLoc, 2097ef8225444452a1486bd721f3285301fe84643b00Stephen Hines isImplicit); 209892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 209915faee19fdb9017dd6d08a690427b18c3b062c2dChris Lattner 21002725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the class to which we are sending this message. 21016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCInterfaceDecl *Class = nullptr; 2102c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall const ObjCObjectType *ClassType = ReceiverType->getAs<ObjCObjectType>(); 2103c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (!ClassType || !(Class = ClassType->getInterface())) { 21042725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Diag(Loc, diag::err_invalid_receiver_class_message) 21052725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor << ReceiverType; 21062725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 21077c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff } 21082725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor assert(Class && "We don't know which class we're messaging?"); 210943bcdb2d4d8390aec89e75f4d232b1fb218a59c5Fariborz Jahanian // objc++ diagnoses during typename annotation. 21104e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) 2111f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis (void)DiagnoseUseOfDecl(Class, SelLoc); 21122725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Find the method we are messaging. 2113f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2114b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor SourceRange TypeRange 2115b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor = SuperLoc.isValid()? SourceRange(SuperLoc) 2116b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor : ReceiverTypeInfo->getTypeLoc().getSourceRange(); 2117d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, Context.getObjCInterfaceType(Class), 21184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().ObjCAutoRefCount 2119d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor ? diag::err_arc_receiver_forward_class 2120d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : diag::warn_receiver_forward_class), 2121d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor TypeRange)) { 2122f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // A forward class used in messaging is treated as a 'Class' 2123f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 2124f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor SourceRange(LBracLoc, RBracLoc)); 21254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Method && !getLangOpts().ObjCAutoRefCount) 2126f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Diag(Method->getLocation(), diag::note_method_sent_forward_class) 2127f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor << Method->getDeclName(); 2128f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2129f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 2130f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = Class->lookupClassMethod(Sel); 21311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2132f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have an implementation in scope, check "private" methods. 2133f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 2134e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks Method = Class->lookupPrivateClassMethod(Sel); 21357c778f1c549a8ae95d50a819fd537df78da16426Steve Naroff 2136f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (Method && DiagnoseUseOfDecl(Method, SelLoc)) 2137f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 2138f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 21391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the argument types and determine the result type. 21412725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 2142f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 2143f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 21442725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 21455354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 2146416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko if (CheckMessageArgumentTypes(ReceiverType, MultiExprArg(Args, NumArgs), 2147416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko Sel, SelectorLocs, 2148376c43223ee29334685250c59fdb11e4b3c594fbFariborz Jahanian Method, true, 2149926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor SuperLoc.isValid(), LBracLoc, RBracLoc, 2150926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ReturnType, VK)) 21512725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 21524df728e368fa1f65ffc57572fed613dcca5b4fe8Ted Kremenek 2153651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Method && !Method->getReturnType()->isVoidType() && 2154651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RequireCompleteType(LBracLoc, Method->getReturnType(), 2155483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 2156483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 2157483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor 21582725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr. 2159ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek ObjCMessageExpr *Result; 21602725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 2161f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 21622d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/false, 2163951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, 21648d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 2165746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 2166ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 2167f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 2168951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverTypeInfo, Sel, SelectorLocs, 21698d9ed7980405e91a12e33338a78fb99620adf553Argyrios Kyrtzidis Method, makeArrayRef(Args, NumArgs), 2170746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis RBracLoc, isImplicit); 2171ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2172ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2173ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 21742d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 217585a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 217685a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner 21772725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnClassMessage - used for both unary and keyword messages. 217885a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// ArgExprs is optional - if it is present, the number of expressions 217985a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner// is obtained from Sel.getNumArgs(). 218060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnClassMessage(Scope *S, 218177328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor ParsedType Receiver, 218277328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor Selector Sel, 218377328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation LBracLoc, 2184951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 218577328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor SourceLocation RBracLoc, 218677328d1bb92c2c46bc3e4badc4b4b97c517903b7Douglas Gregor MultiExprArg Args) { 21872725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor TypeSourceInfo *ReceiverTypeInfo; 21882725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReceiverType = GetTypeFromParser(Receiver, &ReceiverTypeInfo); 21892725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (ReceiverType.isNull()) 21902725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 21911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21932725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!ReceiverTypeInfo) 21942725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverTypeInfo = Context.getTrivialTypeSourceInfo(ReceiverType, LBracLoc); 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21962725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return BuildClassMessage(ReceiverTypeInfo, ReceiverType, 21976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*SuperLoc=*/SourceLocation(), Sel, 21986bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*Method=*/nullptr, LBracLoc, SelectorLocs, RBracLoc, 21996bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Args); 22002725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 220187d3ef08d892df8264bd51adb6ddd4a22422cd29Steve Naroff 2202746f5bcbfde5b25269169c63c66492311673b67dArgyrios KyrtzidisExprResult Sema::BuildInstanceMessageImplicit(Expr *Receiver, 2203746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis QualType ReceiverType, 2204746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis SourceLocation Loc, 2205746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Selector Sel, 2206746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis ObjCMethodDecl *Method, 2207746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg Args) { 2208746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis return BuildInstanceMessage(Receiver, ReceiverType, 2209746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*SuperLoc=*/!Receiver ? Loc : SourceLocation(), 2210746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis Sel, Method, Loc, Loc, Loc, Args, 2211746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis /*isImplicit=*/true); 2212746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis} 2213746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis 22142725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \brief Build an Objective-C instance message expression. 22152725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 22162725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// This routine takes care of both normal instance messages and 22172725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// instance messages to the superclass instance. 22182725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 22192725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Receiver The expression that computes the object that will 22202725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// receive this message. This may be empty, in which case we are 22212725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// sending to the superclass instance and \p SuperLoc must be a valid 22222725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// source location. 22232725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 22242725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param ReceiverType The (static) type of the object receiving the 22252725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// message. When a \p Receiver expression is provided, this is the 22262725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// same type as that expression. For a superclass instance send, this 22272725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// is a pointer to the type of the superclass. 22282725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 22292725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param SuperLoc The location of the "super" keyword in a 22302725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// superclass instance message. 22312725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 22322725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param Sel The selector to which the message is being sent. 22332725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2234f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// \param Method The method that this instance message is invoking, if 2235f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// already known. 2236f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor/// 22372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// \param LBracLoc The location of the opening square bracket ']'. 22382725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2239efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param RBracLoc The location of the closing square bracket ']'. 22402725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor/// 2241efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param ArgsIn The message arguments. 224260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::BuildInstanceMessage(Expr *Receiver, 2243f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis QualType ReceiverType, 2244f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation SuperLoc, 2245f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis Selector Sel, 2246f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis ObjCMethodDecl *Method, 2247f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation LBracLoc, 2248951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 2249f40f0d5a382395e0301d7dcbeaa2b8e90b8973b1Argyrios Kyrtzidis SourceLocation RBracLoc, 2250746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis MultiExprArg ArgsIn, 2251746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis bool isImplicit) { 22520fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor // The location of the receiver. 22530fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor SourceLocation Loc = SuperLoc.isValid()? SuperLoc : Receiver->getLocStart(); 2254f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SourceRange RecRange = 2255f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SuperLoc.isValid()? SuperLoc : Receiver->getSourceRange(); 2256f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SourceLocation SelLoc; 2257f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (!SelectorLocs.empty() && SelectorLocs.front().isValid()) 2258f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SelLoc = SelectorLocs.front(); 2259f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis else 2260f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis SelLoc = Loc; 2261f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis 22620fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor if (LBracLoc.isInvalid()) { 22630fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor Diag(Loc, diag::err_missing_open_square_message_send) 22640fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor << FixItHint::CreateInsertion(Loc, "["); 22650fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor LBracLoc = Loc; 22660fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor } 22670fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 22682725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If we have a receiver expression, perform appropriate promotions 22692725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // and determine receiver type. 22702725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (Receiver) { 22715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (Receiver->hasPlaceholderType()) { 2272f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor ExprResult Result; 2273f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Receiver->getType() == Context.UnknownAnyTy) 2274f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = forceUnknownAnyToType(Receiver, Context.getObjCIdType()); 2275f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor else 2276f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor Result = CheckPlaceholderExpr(Receiver); 2277f1d1ca5b2b40e66d927c2abd16d8baa21af6911fDouglas Gregor if (Result.isInvalid()) return ExprError(); 2278ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Receiver = Result.get(); 22795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 22805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 228192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor if (Receiver->isTypeDependent()) { 228292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // If the receiver is type-dependent, we can't type-check anything 228392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor // at this point. Build a dependent expression. 228492e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor unsigned NumArgs = ArgsIn.size(); 22855354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 228692e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(SuperLoc.isInvalid() && "Message to super with dependent type"); 2287ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return ObjCMessageExpr::Create( 2288ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Context, Context.DependentTy, VK_RValue, LBracLoc, Receiver, Sel, 2289ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SelectorLocs, /*Method=*/nullptr, makeArrayRef(Args, NumArgs), 2290ef8225444452a1486bd721f3285301fe84643b00Stephen Hines RBracLoc, isImplicit); 229192e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor } 229292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 22932725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // If necessary, apply function/array conversion to the receiver. 22942725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // C99 6.7.5.3p[7,8]. 2295429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultFunctionArrayLvalueConversion(Receiver); 2296429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 2297429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return ExprError(); 2298ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Receiver = Result.get(); 22992725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor ReceiverType = Receiver->getType(); 23002fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall 23012fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // If the receiver is an ObjC pointer, a block pointer, or an 23022fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // __attribute__((NSObject)) pointer, we don't need to do any 23032fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // special conversion in order to look up a receiver. 23042fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall if (ReceiverType->isObjCRetainableType()) { 23052fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // do nothing 23062fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall } else if (!getLangOpts().ObjCAutoRefCount && 23072fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall !Context.getObjCIdType().isNull() && 23082fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall (ReceiverType->isPointerType() || 23092fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall ReceiverType->isIntegerType())) { 23102fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // Implicitly convert integers and pointers to 'id' but emit a warning. 23112fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // But not in ARC. 23122fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall Diag(Loc, diag::warn_bad_receiver_type) 23132fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall << ReceiverType 23142fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall << Receiver->getSourceRange(); 23152fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall if (ReceiverType->isPointerType()) { 23162fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 2317ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CK_CPointerToObjCPointerCast).get(); 23182fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall } else { 23192fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // TODO: specialized warning on null receivers? 23202fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall bool IsNull = Receiver->isNullPointerConstant(Context, 23212fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall Expr::NPC_ValueDependentIsNull); 23222fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall CastKind Kind = IsNull ? CK_NullToPointer : CK_IntegralToPointer; 23232fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall Receiver = ImpCastExprToType(Receiver, Context.getObjCIdType(), 2324ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Kind).get(); 23252fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall } 23262fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall ReceiverType = Receiver->getType(); 23272fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall } else if (getLangOpts().CPlusPlus) { 23281ce550906a9163fdf4d174a2f4ed594aa18d75acDouglas Gregor // The receiver must be a complete type. 23291ce550906a9163fdf4d174a2f4ed594aa18d75acDouglas Gregor if (RequireCompleteType(Loc, Receiver->getType(), 23301ce550906a9163fdf4d174a2f4ed594aa18d75acDouglas Gregor diag::err_incomplete_receiver_type)) 23311ce550906a9163fdf4d174a2f4ed594aa18d75acDouglas Gregor return ExprError(); 23321ce550906a9163fdf4d174a2f4ed594aa18d75acDouglas Gregor 23332fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall ExprResult result = PerformContextuallyConvertToObjCPointer(Receiver); 23342fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall if (result.isUsable()) { 2335ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Receiver = result.get(); 23362fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall ReceiverType = Receiver->getType(); 23372fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall } 23382fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall } 23392725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor } 234004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 23412fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // There's a somewhat weird interaction here where we assume that we 23422fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // won't actually have a method unless we also don't need to do some 23432fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // of the more detailed type-checking on the receiver. 23442fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall 2345f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2346f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to id. 2347ba551983016ee3eac5421255d2ebe6723e61befbFariborz Jahanian bool receiverIsId = ReceiverType->isObjCIdType(); 23486b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian if (receiverIsId || ReceiverType->isBlockPointerType() || 2349f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor (Receiver && Context.isObjCNSObjectType(Receiver->getType()))) { 2350f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 23516b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 23526b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2353f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) 23542725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor Method = LookupFactoryMethodInGlobalPool(Sel, 2355d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceRange(LBracLoc,RBracLoc), 23566b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian receiverIsId); 2357f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (ReceiverType->isObjCClassType() || 2358f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ReceiverType->isObjCQualifiedClassType()) { 2359f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Handle messages to Class. 2360759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // We allow sending a message to a qualified Class ("Class<foo>"), which 2361759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // is ok as long as one of the protocols implements the selector (if not, warn). 2362759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCObjectPointerType *QClassTy 2363759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian = ReceiverType->getAsObjCQualifiedClassType()) { 2364759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // Search protocols for class methods. 2365759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, false); 2366759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2367759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QClassTy, true); 2368759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // warn if instance method found for a Class message. 2369759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) { 2370f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis Diag(SelLoc, diag::warn_instance_method_on_class_found) 2371759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Method->getSelector() << Sel; 23723306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(Method->getLocation(), diag::note_method_declared_at) 23733306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << Method->getDeclName(); 2374759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 23756b9dfd4257b85c388a9e3cd345cf28acb7351006Steve Naroff } 2376759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } else { 2377759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCMethodDecl *CurMeth = getCurMethodDecl()) { 2378759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ObjCInterfaceDecl *ClassDecl = CurMeth->getClassInterface()) { 2379759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // First check the public methods in the class interface. 2380759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = ClassDecl->lookupClassMethod(Sel); 2381759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian 2382759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) 2383e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks Method = ClassDecl->lookupPrivateClassMethod(Sel); 2384759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2385f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (Method && DiagnoseUseOfDecl(Method, SelLoc)) 2386759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian return ExprError(); 2387759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2388759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2389759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If not messaging 'self', look for any factory method named 'Sel'. 2390c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Receiver || !isSelfExpr(Receiver)) { 2391759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupFactoryMethodInGlobalPool(Sel, 2392759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2393759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2394759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (!Method) { 2395759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // If no class (factory) method was found, check if an _instance_ 2396759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian // method of the same name exists in the root class only. 2397759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian Method = LookupInstanceMethodInGlobalPool(Sel, 23986b308f6dc7d8f1581c52095f435c0e1284b111d8Fariborz Jahanian SourceRange(LBracLoc, RBracLoc), 2399759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian true); 2400759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (Method) 2401759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (const ObjCInterfaceDecl *ID = 2402759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext())) { 2403759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian if (ID->getSuperClass()) 2404f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis Diag(SelLoc, diag::warn_root_inst_method_not_found) 2405759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian << Sel << SourceRange(LBracLoc, RBracLoc); 2406759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 2407759abb4d9ec14ae32104a9677b60f0542b60d1d8Fariborz Jahanian } 240804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 240904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 241004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 241104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } else { 24126bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCInterfaceDecl *ClassDecl = nullptr; 2413f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 2414f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a qualified ID ("id<foo>"), which is ok as 2415f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // long as one of the protocols implements the selector (if not, warn). 241633e6c2da2f72720ee6a34c6acd2a3e5ad37feca9Fariborz Jahanian // And as long as message is not deprecated/unavailable (warn if it is). 2417f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (const ObjCObjectPointerType *QIdTy 2418f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCQualifiedIdType()) { 2419f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocols for instance methods. 242027569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, true); 242127569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 242227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, QIdTy, false); 2423f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (Method && DiagnoseUseOfDecl(Method, SelLoc)) 242433e6c2da2f72720ee6a34c6acd2a3e5ad37feca9Fariborz Jahanian return ExprError(); 2425f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } else if (const ObjCObjectPointerType *OCIType 2426f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor = ReceiverType->getAsObjCInterfacePointerType()) { 2427f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // We allow sending a message to a pointer to an interface (an object). 2428f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor ClassDecl = OCIType->getInterfaceDecl(); 2429f85e193739c953358c865005855253af4f68a497John McCall 2430b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // Try to complete the type. Under ARC, this is a hard error from which 2431b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // we don't try to recover. 24326bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const ObjCInterfaceDecl *forwardClass = nullptr; 2433b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (RequireCompleteType(Loc, OCIType->getPointeeType(), 24344e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().ObjCAutoRefCount 2435d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor ? diag::err_arc_receiver_forward_instance 2436d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : diag::warn_receiver_forward_instance, 2437d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Receiver? Receiver->getSourceRange() 2438d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor : SourceRange(SuperLoc))) { 24394e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 2440b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor return ExprError(); 2441b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 2442b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor forwardClass = OCIType->getInterfaceDecl(); 24434cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian Diag(Receiver ? Receiver->getLocStart() 24444cc9b10523b61ed260767aeb62cc36fd7734a942Fariborz Jahanian : SuperLoc, diag::note_receiver_is_id); 24456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Method = nullptr; 24462e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor } else { 24472e5c15be82f362611c5928ce853d0685ff98c766Douglas Gregor Method = ClassDecl->lookupInstanceMethod(Sel); 2448f85e193739c953358c865005855253af4f68a497John McCall } 2449f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 245027569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian if (!Method) 2451f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // Search protocol qualifiers. 245227569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian Method = LookupMethodInQualifiedType(Sel, OCIType, true); 245327569b0f3e1b27f609a2e104b39bad077850e210Fariborz Jahanian 2454f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (!Method) { 2455f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we have implementations in scope, check "private" methods. 2456e61354b274ec5aa6acf3d15271896ce7596bb123Anna Zaks Method = ClassDecl->lookupPrivateMethod(Sel); 2457f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor 24584e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Method && getLangOpts().ObjCAutoRefCount) { 2459f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis Diag(SelLoc, diag::err_arc_may_not_respond) 2460f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis << OCIType->getPointeeType() << Sel << RecRange 246184c7519a3865a04f631bc8ddfb8372223d96acfcFariborz Jahanian << SourceRange(SelectorLocs.front(), SelectorLocs.back()); 2462f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 2463f85e193739c953358c865005855253af4f68a497John McCall } 2464f85e193739c953358c865005855253af4f68a497John McCall 2465c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor if (!Method && (!Receiver || !isSelfExpr(Receiver))) { 2466f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // If we still haven't found a method, look in the global pool. This 2467f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // behavior isn't very desirable, however we need it for GCC 2468f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor // compatibility. FIXME: should we deviate?? 2469f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor if (OCIType->qual_empty()) { 2470f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor Method = LookupInstanceMethodInGlobalPool(Sel, 2471d2d065545ba7b4349ae02afe07f799047443f1a0Jordy Rose SourceRange(LBracLoc, RBracLoc)); 24728e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian if (Method && !forwardClass) 2473f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis Diag(SelLoc, diag::warn_maynot_respond) 2474f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis << OCIType->getInterfaceDecl()->getIdentifier() 2475f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis << Sel << RecRange; 2476f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2477f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2478f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 2479f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis if (Method && DiagnoseUseOfDecl(Method, SelLoc, forwardClass)) 2480f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor return ExprError(); 24810bcc9bc6cd46757000245fb7b91302e6ec3478a1John McCall } else { 24822fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall // Reject other random receiver types (e.g. structs). 24832fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall Diag(Loc, diag::err_bad_receiver_type) 24842fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall << ReceiverType << Receiver->getSourceRange(); 24852fbe92cc2464c77825209df9a262d9d13e5ba64cJohn McCall return ExprError(); 2486f49bb082ebf6413b2d3cb956e9c78dbb8a978c58Douglas Gregor } 248704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 2488fe1a553256b46fad3c0a9e9967481bcf571339ecChris Lattner } 24891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2490651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FunctionScopeInfo *DIFunctionScopeInfo = 2491651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (Method && Method->getMethodFamily() == OMF_init) 24926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ? getEnclosingFunction() : nullptr; 24936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 2494651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DIFunctionScopeInfo && 2495651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DIFunctionScopeInfo->ObjCIsDesignatedInit && 2496651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (SuperLoc.isValid() || isSelfExpr(Receiver))) { 2497651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool isDesignatedInitChain = false; 2498651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (SuperLoc.isValid()) { 2499651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (const ObjCObjectPointerType * 2500651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines OCIType = ReceiverType->getAsObjCInterfacePointerType()) { 2501651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (const ObjCInterfaceDecl *ID = OCIType->getInterfaceDecl()) { 2502651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Either we know this is a designated initializer or we 2503651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // conservatively assume it because we don't know for sure. 2504651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!ID->declaresOrInheritsDesignatedInitializers() || 2505651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ID->isDesignatedInitializer(Sel)) { 2506651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines isDesignatedInitChain = true; 2507651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DIFunctionScopeInfo->ObjCWarnForNoDesignatedInitChain = false; 2508651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2509651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2510651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2511651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2512651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!isDesignatedInitChain) { 25136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const ObjCMethodDecl *InitMethod = nullptr; 2514651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool isDesignated = 2515651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines getCurMethodDecl()->isDesignatedInitializerForTheInterface(&InitMethod); 2516651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(isDesignated && InitMethod); 2517651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (void)isDesignated; 2518651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(SelLoc, SuperLoc.isValid() ? 2519651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines diag::warn_objc_designated_init_non_designated_init_call : 2520651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines diag::warn_objc_designated_init_non_super_designated_init_call); 2521651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(InitMethod->getLocation(), 2522651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines diag::note_objc_designated_init_marked_here); 2523651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2524651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2525651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2526651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DIFunctionScopeInfo && 2527651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DIFunctionScopeInfo->ObjCIsSecondaryInit && 2528651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (SuperLoc.isValid() || isSelfExpr(Receiver))) { 2529651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (SuperLoc.isValid()) { 2530651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(SelLoc, diag::warn_objc_secondary_init_super_init_call); 2531651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else { 2532651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DIFunctionScopeInfo->ObjCWarnForNoInitDelegation = false; 2533651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2534651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2535651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 25362725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Check the message arguments. 25372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor unsigned NumArgs = ArgsIn.size(); 25385354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer Expr **Args = ArgsIn.data(); 25392725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor QualType ReturnType; 2540f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK = VK_RValue; 25412600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian bool ClassMessage = (ReceiverType->isObjCClassType() || 25422600503170c8366af2587408c50e2beedee5d1f1Fariborz Jahanian ReceiverType->isObjCQualifiedClassType()); 2543416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko if (CheckMessageArgumentTypes(ReceiverType, MultiExprArg(Args, NumArgs), 2544416c9b318e0100729a803e747736e7c968be69c9Dmitri Gribenko Sel, SelectorLocs, Method, 2545926df6cfabf3eaa4afc990c097fa4619b76a9b57Douglas Gregor ClassMessage, SuperLoc.isValid(), 2546f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall LBracLoc, RBracLoc, ReturnType, VK)) 25472725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 2548651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2549651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Method && !Method->getReturnType()->isVoidType() && 2550651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RequireCompleteType(LBracLoc, Method->getReturnType(), 2551483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor diag::err_illegal_message_expr_incomplete_type)) 2552483dd2f55ee53bc765123ead3428aa4ad2682cf3Douglas Gregor return ExprError(); 255304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2554f85e193739c953358c865005855253af4f68a497John McCall // In ARC, forbid the user from sending messages to 2555f85e193739c953358c865005855253af4f68a497John McCall // retain/release/autorelease/dealloc/retainCount explicitly. 25564e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 2557f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodFamily family = 2558f85e193739c953358c865005855253af4f68a497John McCall (Method ? Method->getMethodFamily() : Sel.getMethodFamily()); 2559f85e193739c953358c865005855253af4f68a497John McCall switch (family) { 2560f85e193739c953358c865005855253af4f68a497John McCall case OMF_init: 2561f85e193739c953358c865005855253af4f68a497John McCall if (Method) 2562f85e193739c953358c865005855253af4f68a497John McCall checkInitMethod(Method, ReceiverType); 2563f85e193739c953358c865005855253af4f68a497John McCall 2564f85e193739c953358c865005855253af4f68a497John McCall case OMF_None: 2565f85e193739c953358c865005855253af4f68a497John McCall case OMF_alloc: 2566f85e193739c953358c865005855253af4f68a497John McCall case OMF_copy: 256780cb6e69d9e85231588ae604e4bc2bc9a07389afNico Weber case OMF_finalize: 2568f85e193739c953358c865005855253af4f68a497John McCall case OMF_mutableCopy: 2569f85e193739c953358c865005855253af4f68a497John McCall case OMF_new: 2570f85e193739c953358c865005855253af4f68a497John McCall case OMF_self: 2571f85e193739c953358c865005855253af4f68a497John McCall break; 2572f85e193739c953358c865005855253af4f68a497John McCall 2573f85e193739c953358c865005855253af4f68a497John McCall case OMF_dealloc: 2574f85e193739c953358c865005855253af4f68a497John McCall case OMF_retain: 2575f85e193739c953358c865005855253af4f68a497John McCall case OMF_release: 2576f85e193739c953358c865005855253af4f68a497John McCall case OMF_autorelease: 2577f85e193739c953358c865005855253af4f68a497John McCall case OMF_retainCount: 2578f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis Diag(SelLoc, diag::err_arc_illegal_explicit_message) 2579f4d02398936c0fdc9fe981348519fbc323f24ad0Argyrios Kyrtzidis << Sel << RecRange; 2580f85e193739c953358c865005855253af4f68a497John McCall break; 25819670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian 25829670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_performSelector: 25839670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (Method && NumArgs >= 1) { 25849670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (ObjCSelectorExpr *SelExp = dyn_cast<ObjCSelectorExpr>(Args[0])) { 25859670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Selector ArgSel = SelExp->getSelector(); 25869670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodDecl *SelMethod = 25879670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupInstanceMethodInGlobalPool(ArgSel, 25889670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 25899670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod) 25909670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelMethod = 25919670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian LookupFactoryMethodInGlobalPool(ArgSel, 25929670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian SelExp->getSourceRange()); 25939670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod) { 25949670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian ObjCMethodFamily SelFamily = SelMethod->getMethodFamily(); 25959670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian switch (SelFamily) { 25969670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_alloc: 25979670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_copy: 25989670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_mutableCopy: 25999670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_new: 26009670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_self: 26019670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian case OMF_init: 26029670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // Issue error, unless ns_returns_not_retained. 26039670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (!SelMethod->hasAttr<NSReturnsNotRetainedAttr>()) { 26049670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2605951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 26069670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 26073306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 26083306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 26099670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 26109670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 26119670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian default: 26129670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // +0 call. OK. unless ns_returns_retained. 26139670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian if (SelMethod->hasAttr<NSReturnsRetainedAttr>()) { 26149670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // selector names a +1 method 2615951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, 26169670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian diag::err_arc_perform_selector_retains); 26173306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek Diag(SelMethod->getLocation(), diag::note_method_declared_at) 26183306ec1923973d7b5767b23ba95915af2fec87d7Ted Kremenek << SelMethod->getDeclName(); 26199670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 26209670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 26219670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 26229670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 26239670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } else { 26249670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian // error (may leak). 2625951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Diag(SelLoc, diag::warn_arc_perform_selector_leaks); 26269670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian Diag(Args[0]->getExprLoc(), diag::note_used_here); 26279670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 26289670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian } 26299670e179a67d868e171feac44fb8f9e2f108c5e8Fariborz Jahanian break; 2630f85e193739c953358c865005855253af4f68a497John McCall } 2631f85e193739c953358c865005855253af4f68a497John McCall } 2632f85e193739c953358c865005855253af4f68a497John McCall 26332725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor // Construct the appropriate ObjCMessageExpr instance. 2634f85e193739c953358c865005855253af4f68a497John McCall ObjCMessageExpr *Result; 26352725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (SuperLoc.isValid()) 2636f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 26372d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor SuperLoc, /*IsInstanceSuper=*/true, 2638951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ReceiverType, Sel, SelectorLocs, Method, 2639746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2640746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2641ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek else { 2642f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Result = ObjCMessageExpr::Create(Context, ReturnType, VK, LBracLoc, 2643951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis Receiver, Sel, SelectorLocs, Method, 2644746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis makeArrayRef(Args, NumArgs), RBracLoc, 2645746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis isImplicit); 2646ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek if (!isImplicit) 2647ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek checkCocoaAPI(*this, Result); 2648ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek } 2649f85e193739c953358c865005855253af4f68a497John McCall 26504e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 2651ef8225444452a1486bd721f3285301fe84643b00Stephen Hines // Do not warn about IBOutlet weak property receivers being set to null 2652ef8225444452a1486bd721f3285301fe84643b00Stephen Hines // as this cannot asynchronously happen. 2653ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool WarnWeakReceiver = true; 2654ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (isImplicit && Method) 2655ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (const ObjCPropertyDecl *PropertyDecl = Method->findPropertyDecl()) 2656ef8225444452a1486bd721f3285301fe84643b00Stephen Hines WarnWeakReceiver = !PropertyDecl->hasAttr<IBOutletAttr>(); 2657ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (WarnWeakReceiver) 2658ef8225444452a1486bd721f3285301fe84643b00Stephen Hines DiagnoseARCUseOfWeakReceiver(*this, Receiver); 2659878f8502ebea491b818b48e342f9ad9de2feaff6Fariborz Jahanian 2660f85e193739c953358c865005855253af4f68a497John McCall // In ARC, annotate delegate init calls. 2661f85e193739c953358c865005855253af4f68a497John McCall if (Result->getMethodFamily() == OMF_init && 2662c737acb8e86564becc5939d681089d1851e6be1aDouglas Gregor (SuperLoc.isValid() || isSelfExpr(Receiver))) { 2663f85e193739c953358c865005855253af4f68a497John McCall // Only consider init calls *directly* in init implementations, 2664f85e193739c953358c865005855253af4f68a497John McCall // not within blocks. 2665f85e193739c953358c865005855253af4f68a497John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(CurContext); 2666f85e193739c953358c865005855253af4f68a497John McCall if (method && method->getMethodFamily() == OMF_init) { 2667f85e193739c953358c865005855253af4f68a497John McCall // The implicit assignment to self means we also don't want to 2668f85e193739c953358c865005855253af4f68a497John McCall // consume the result. 2669f85e193739c953358c865005855253af4f68a497John McCall Result->setDelegateInitCall(true); 2670ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return Result; 2671f85e193739c953358c865005855253af4f68a497John McCall } 2672f85e193739c953358c865005855253af4f68a497John McCall } 2673f85e193739c953358c865005855253af4f68a497John McCall 2674f85e193739c953358c865005855253af4f68a497John McCall // In ARC, check for message sends which are likely to introduce 2675f85e193739c953358c865005855253af4f68a497John McCall // retain cycles. 2676f85e193739c953358c865005855253af4f68a497John McCall checkRetainCycles(Result); 26777fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose 26787fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose if (!isImplicit && Method) { 26797fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose if (const ObjCPropertyDecl *Prop = Method->findPropertyDecl()) { 26807fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose bool IsWeak = 26817fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose Prop->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_weak; 26827fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose if (!IsWeak && Sel.isUnarySelector()) 26837fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose IsWeak = ReturnType.getObjCLifetime() & Qualifiers::OCL_Weak; 2684ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (IsWeak && 2685ef8225444452a1486bd721f3285301fe84643b00Stephen Hines !Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, LBracLoc)) 2686ef8225444452a1486bd721f3285301fe84643b00Stephen Hines getCurFunction()->recordUseOfWeak(Result, Prop); 26877fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose } 26887fffce781e6ecbf4058b24df7e5ae3037569aa56Jordan Rose } 2689f85e193739c953358c865005855253af4f68a497John McCall } 2690651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 26912d6b0e94db30c0e2754d270753c6f75478e451bfDouglas Gregor return MaybeBindToTemporary(Result); 26922725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor} 26932725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor 269448f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanianstatic void RemoveSelectorFromWarningCache(Sema &S, Expr* Arg) { 269548f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian if (ObjCSelectorExpr *OSE = 269648f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian dyn_cast<ObjCSelectorExpr>(Arg->IgnoreParenCasts())) { 269748f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian Selector Sel = OSE->getSelector(); 269848f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian SourceLocation Loc = OSE->getAtLoc(); 269948f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian llvm::DenseMap<Selector, SourceLocation>::iterator Pos 270048f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian = S.ReferencedSelectors.find(Sel); 270148f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian if (Pos != S.ReferencedSelectors.end() && Pos->second == Loc) 270248f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian S.ReferencedSelectors.erase(Pos); 270348f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian } 270448f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian} 270548f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian 27062725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ActOnInstanceMessage - used for both unary and keyword messages. 27072725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// ArgExprs is optional - if it is present, the number of expressions 27082725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor// is obtained from Sel.getNumArgs(). 270960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Sema::ActOnInstanceMessage(Scope *S, 271060d7b3a319d84d688752be3870615ac0f111fb16John McCall Expr *Receiver, 271160d7b3a319d84d688752be3870615ac0f111fb16John McCall Selector Sel, 271260d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation LBracLoc, 2713951376242c076c3f62dd78bf672909fc011991dbArgyrios Kyrtzidis ArrayRef<SourceLocation> SelectorLocs, 271460d7b3a319d84d688752be3870615ac0f111fb16John McCall SourceLocation RBracLoc, 271560d7b3a319d84d688752be3870615ac0f111fb16John McCall MultiExprArg Args) { 27162725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor if (!Receiver) 27172725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor return ExprError(); 2718db546fa2ce65dd2e275fc3fdee961767d53f77cfArgyrios Kyrtzidis 2719db546fa2ce65dd2e275fc3fdee961767d53f77cfArgyrios Kyrtzidis // A ParenListExpr can show up while doing error recovery with invalid code. 2720db546fa2ce65dd2e275fc3fdee961767d53f77cfArgyrios Kyrtzidis if (isa<ParenListExpr>(Receiver)) { 2721db546fa2ce65dd2e275fc3fdee961767d53f77cfArgyrios Kyrtzidis ExprResult Result = MaybeConvertParenListExprToParenExpr(S, Receiver); 2722db546fa2ce65dd2e275fc3fdee961767d53f77cfArgyrios Kyrtzidis if (Result.isInvalid()) return ExprError(); 2723ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Receiver = Result.get(); 2724db546fa2ce65dd2e275fc3fdee961767d53f77cfArgyrios Kyrtzidis } 27253548068c22f809e5bc64b83d2c3622018469256cFariborz Jahanian 27263548068c22f809e5bc64b83d2c3622018469256cFariborz Jahanian if (RespondsToSelectorSel.isNull()) { 27273548068c22f809e5bc64b83d2c3622018469256cFariborz Jahanian IdentifierInfo *SelectorId = &Context.Idents.get("respondsToSelector"); 27283548068c22f809e5bc64b83d2c3622018469256cFariborz Jahanian RespondsToSelectorSel = Context.Selectors.getUnarySelector(SelectorId); 27293548068c22f809e5bc64b83d2c3622018469256cFariborz Jahanian } 27303548068c22f809e5bc64b83d2c3622018469256cFariborz Jahanian if (Sel == RespondsToSelectorSel) 273148f3cc2b2be1d32df14234904539b34e6e387e4aFariborz Jahanian RemoveSelectorFromWarningCache(*this, Args[0]); 27326bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 27339ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return BuildInstanceMessage(Receiver, Receiver->getType(), 27346bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*SuperLoc=*/SourceLocation(), Sel, 27356bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*Method=*/nullptr, LBracLoc, SelectorLocs, 27366bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RBracLoc, Args); 273785a932e26f3c3faae6bad639a6d32e92794dfda9Chris Lattner} 2738eca7be6b7ebd93682eeaab2c71d59f2995dacdccChris Lattner 2739f85e193739c953358c865005855253af4f68a497John McCallenum ARCConversionTypeClass { 27402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// int, void, struct A 2741f85e193739c953358c865005855253af4f68a497John McCall ACTC_none, 27422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id, void (^)() 2744f85e193739c953358c865005855253af4f68a497John McCall ACTC_retainable, 27452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27462cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// id*, id***, void (^*)(), 27472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_indirectRetainable, 27482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// void* might be a normal C type, or it might a CF type. 27502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_voidPtr, 27512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// struct A* 27532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC_coreFoundation 2754f85e193739c953358c865005855253af4f68a497John McCall}; 27552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyRetainable(ARCConversionTypeClass ACTC) { 27562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return (ACTC == ACTC_retainable || 27572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation || 27582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr); 27592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 27602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCallstatic bool isAnyCLike(ARCConversionTypeClass ACTC) { 27612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC == ACTC_none || 27622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_voidPtr || 27632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACTC == ACTC_coreFoundation; 27642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall} 27652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2766f85e193739c953358c865005855253af4f68a497John McCallstatic ARCConversionTypeClass classifyTypeForARCConversion(QualType type) { 27672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall bool isIndirect = false; 2768f85e193739c953358c865005855253af4f68a497John McCall 2769f85e193739c953358c865005855253af4f68a497John McCall // Ignore an outermost reference type. 27702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = type->getAs<ReferenceType>()) { 2771f85e193739c953358c865005855253af4f68a497John McCall type = ref->getPointeeType(); 27722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 27732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2774f85e193739c953358c865005855253af4f68a497John McCall 2775f85e193739c953358c865005855253af4f68a497John McCall // Drill through pointers and arrays recursively. 2776f85e193739c953358c865005855253af4f68a497John McCall while (true) { 2777f85e193739c953358c865005855253af4f68a497John McCall if (const PointerType *ptr = type->getAs<PointerType>()) { 2778f85e193739c953358c865005855253af4f68a497John McCall type = ptr->getPointeeType(); 27792cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // The first level of pointer may be the innermost pointer on a CF type. 27812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isIndirect) { 27822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isVoidType()) return ACTC_voidPtr; 27832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isRecordType()) return ACTC_coreFoundation; 27842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 2785f85e193739c953358c865005855253af4f68a497John McCall } else if (const ArrayType *array = type->getAsArrayTypeUnsafe()) { 2786f85e193739c953358c865005855253af4f68a497John McCall type = QualType(array->getElementType()->getBaseElementTypeUnsafe(), 0); 2787f85e193739c953358c865005855253af4f68a497John McCall } else { 2788f85e193739c953358c865005855253af4f68a497John McCall break; 2789f85e193739c953358c865005855253af4f68a497John McCall } 27902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isIndirect = true; 2791f85e193739c953358c865005855253af4f68a497John McCall } 2792f85e193739c953358c865005855253af4f68a497John McCall 27932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isIndirect) { 27942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 27952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_indirectRetainable; 27962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 27972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 27982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 27992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (type->isObjCARCBridgableType()) 28002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_retainable; 28012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACTC_none; 2803f85e193739c953358c865005855253af4f68a497John McCall} 2804f85e193739c953358c865005855253af4f68a497John McCall 2805f85e193739c953358c865005855253af4f68a497John McCallnamespace { 28062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A result from the cast checker. 28072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall enum ACCResult { 28082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Cannot be casted. 28092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_invalid, 28102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be safely retained or not retained. 28122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_bottom, 28132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +0. 28152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusZero, 28162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Can be casted at +1. 28182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACC_plusOne 28192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 28202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult merge(ACCResult left, ACCResult right) { 28212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == right) return left; 28222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_bottom) return right; 28232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (right == ACC_bottom) return left; 28242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 28252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 28262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// A checker which white-lists certain expressions whose conversion 28282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// to or from retainable type would otherwise be forbidden in ARC. 28292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall class ARCCastChecker : public StmtVisitor<ARCCastChecker, ACCResult> { 28302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall typedef StmtVisitor<ARCCastChecker, ACCResult> super; 28312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2832f85e193739c953358c865005855253af4f68a497John McCall ASTContext &Context; 28332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass SourceClass; 28342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass TargetClass; 2835533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian bool Diagnose; 28362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28372cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall static bool isCFType(QualType type) { 28382cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Someday this can use ns_bridged. For now, it has to do this. 28392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return type->isCARCBridgableType(); 2840f85e193739c953358c865005855253af4f68a497John McCall } 28412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall public: 28432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCCastChecker(ASTContext &Context, ARCConversionTypeClass source, 2844533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian ARCConversionTypeClass target, bool diagnose) 2845533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian : Context(Context), SourceClass(source), TargetClass(target), 2846533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian Diagnose(diagnose) {} 28472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall using super::Visit; 28492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult Visit(Expr *e) { 28502cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::Visit(e->IgnoreParens()); 2851f85e193739c953358c865005855253af4f68a497John McCall } 28522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmt(Stmt *s) { 28542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 28552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 28562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Null pointer constants can be casted however you please. 28582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitExpr(Expr *e) { 28592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isNullPointerConstant(Context, Expr::NPC_ValueDependentIsNotNull)) 28602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 28612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 28622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 28632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Objective-C string literals can be safely casted. 28652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCStringLiteral(ObjCStringLiteral *e) { 28662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If we're casting to any retainable type, go ahead. Global 28672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // strings are immune to retains, so this is bottom. 28682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass)) return ACC_bottom; 28692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2871f85e193739c953358c865005855253af4f68a497John McCall } 28722cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28732cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through certain implicit and explicit casts. 28742cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCastExpr(CastExpr *e) { 2875f85e193739c953358c865005855253af4f68a497John McCall switch (e->getCastKind()) { 2876f85e193739c953358c865005855253af4f68a497John McCall case CK_NullToPointer: 28772cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 28782cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2879f85e193739c953358c865005855253af4f68a497John McCall case CK_NoOp: 2880f85e193739c953358c865005855253af4f68a497John McCall case CK_LValueToRValue: 2881f85e193739c953358c865005855253af4f68a497John McCall case CK_BitCast: 28821d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_CPointerToObjCPointerCast: 28831d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall case CK_BlockPointerToObjCPointerCast: 2884f85e193739c953358c865005855253af4f68a497John McCall case CK_AnyPointerToBlockPointerCast: 2885f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 28862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 2887f85e193739c953358c865005855253af4f68a497John McCall default: 28882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2889f85e193739c953358c865005855253af4f68a497John McCall } 2890f85e193739c953358c865005855253af4f68a497John McCall } 28912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Look through unary extension. 28932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitUnaryExtension(UnaryOperator *e) { 2894f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubExpr()); 2895f85e193739c953358c865005855253af4f68a497John McCall } 28962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 28972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Ignore the LHS of a comma operator. 28982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitBinComma(BinaryOperator *e) { 2899f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getRHS()); 2900f85e193739c953358c865005855253af4f68a497John McCall } 29012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Conditional operators are okay if both sides are okay. 29032cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitConditionalOperator(ConditionalOperator *e) { 29042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult left = Visit(e->getTrueExpr()); 29052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (left == ACC_invalid) return ACC_invalid; 29062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return merge(left, Visit(e->getFalseExpr())); 2907f85e193739c953358c865005855253af4f68a497John McCall } 29082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29094b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// Look through pseudo-objects. 29104b9c2d235fb9449e249d74f48ecfec601650de93John McCall ACCResult VisitPseudoObjectExpr(PseudoObjectExpr *e) { 29114b9c2d235fb9449e249d74f48ecfec601650de93John McCall // If we're getting here, we should always have a result. 29124b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Visit(e->getResultExpr()); 29134b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 29144b9c2d235fb9449e249d74f48ecfec601650de93John McCall 29152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Statement expressions are okay if their result expression is okay. 29162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitStmtExpr(StmtExpr *e) { 2917f85e193739c953358c865005855253af4f68a497John McCall return Visit(e->getSubStmt()->body_back()); 2918f85e193739c953358c865005855253af4f68a497John McCall } 29192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some declaration references are okay. 29212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitDeclRefExpr(DeclRefExpr *e) { 29222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // References to global constants from system headers are okay. 29232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // These are things like 'kCFStringTransformToLatin'. They are 29242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // can also be assumed to be immune to retains. 29252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall VarDecl *var = dyn_cast<VarDecl>(e->getDecl()); 29262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (isAnyRetainable(TargetClass) && 29272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall isAnyRetainable(SourceClass) && 29282cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var && 29292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getStorageClass() == SC_Extern && 29302cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall var->getType().isConstQualified() && 29312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall Context.getSourceManager().isInSystemHeader(var->getLocation())) { 29322cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 29332cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 29342cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29352cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Nothing else. 29362cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 2937f85e193739c953358c865005855253af4f68a497John McCall } 2938f85e193739c953358c865005855253af4f68a497John McCall 29392cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall /// Some calls are okay. 29402cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitCallExpr(CallExpr *e) { 29412cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (FunctionDecl *fn = e->getDirectCallee()) 29422cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (ACCResult result = checkCallToFunction(fn)) 29432cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return result; 29442cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29452cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return super::VisitCallExpr(e); 2946c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 29472cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29482cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToFunction(FunctionDecl *fn) { 29492cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Require a CF*Ref return type. 2950651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!isCFType(fn->getReturnType())) 29512cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 29522cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29532cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!isAnyRetainable(TargetClass)) 29542cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 29552cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29562cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'not retained' attribute. 29572cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsNotRetainedAttr>()) 29582cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 29592cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29602cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Honor an explicit 'retained' attribute, except that for 29612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // now we're not going to permit implicit handling of +1 results, 29622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // because it's a bit frightening. 29632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (fn->hasAttr<CFReturnsRetainedAttr>()) 296424b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian return Diagnose ? ACC_plusOne 296524b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian : ACC_invalid; // ACC_plusOne if we start accepting this 29662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29672cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Recognize this specific builtin function, which is used by CFSTR. 29682cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall unsigned builtinID = fn->getBuiltinID(); 29692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (builtinID == Builtin::BI__builtin___CFStringMakeConstantString) 29702cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_bottom; 29712cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 297224b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian // Otherwise, don't do anything implicit with an unaudited function. 297324b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian if (!fn->hasAttr<CFAuditedTransferAttr>()) 297424b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian return ACC_invalid; 297524b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian 2976533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian // Otherwise, it's +0 unless it follows the create convention. 2977533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian if (ento::coreFoundation::followsCreateRule(fn)) 2978533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian return Diagnose ? ACC_plusOne 2979533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian : ACC_invalid; // ACC_plusOne if we start accepting this 29802cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29812cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 29822cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 29832cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29842cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCMessageExpr(ObjCMessageExpr *e) { 29852cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(e->getMethodDecl()); 29862cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 29872cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29882cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *e) { 29892cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ObjCMethodDecl *method; 29902cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (e->isExplicitProperty()) 29912cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getExplicitProperty()->getGetterMethodDecl(); 29922cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall else 29932cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall method = e->getImplicitPropertyGetter(); 29942cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return checkCallToMethod(method); 29952cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 29962cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 29972cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ACCResult checkCallToMethod(ObjCMethodDecl *method) { 29982cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (!method) return ACC_invalid; 29992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Check for message sends to functions returning CF types. We 30012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // just obey the Cocoa conventions with these, even though the 30022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // return type is CF. 3003651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!isAnyRetainable(TargetClass) || !isCFType(method->getReturnType())) 30042cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_invalid; 30052cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30062cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked not-retained, it's +0. 30072cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsNotRetainedAttr>()) 30082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 30092cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the method is explicitly marked as returning retained, or its 30112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // selector follows a +1 Cocoa convention, treat it as +1. 30122cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (method->hasAttr<CFReturnsRetainedAttr>()) 30132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 30142cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall switch (method->getSelector().getMethodFamily()) { 30162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_alloc: 30172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_copy: 30182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_mutableCopy: 30192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case OMF_new: 30202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusOne; 30212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 30222cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall default: 30232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Otherwise, treat it as +0. 30242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall return ACC_plusZero; 3025c8505ad9182c3ddcfda42bee250b2c32dd1f3219Fariborz Jahanian } 3026af9751747b098d77052cb71f1e648f29cfbadcc1Fariborz Jahanian } 30272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall }; 30281522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian} 30291522a7c35e9872c5767721350fc8050be5b14fd2Fariborz Jahanian 3030684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidisbool Sema::isKnownName(StringRef name) { 3031684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis if (name.empty()) 3032684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis return false; 3033684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis LookupResult R(*this, &Context.Idents.get(name), SourceLocation(), 303452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian Sema::LookupOrdinaryName); 3035684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis return LookupName(R, TUScope, false); 303652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian} 303752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 3038ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidisstatic void addFixitForObjCARCConversion(Sema &S, 3039ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagnosticBuilder &DiagB, 3040ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Sema::CheckedConversionKind CCK, 3041ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceLocation afterLParen, 3042ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis QualType castType, 3043ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castExpr, 3044f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian Expr *realCast, 3045ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *bridgeKeyword, 3046ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis const char *CFBridgeName) { 3047ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis // We handle C-style and implicit casts here. 3048ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis switch (CCK) { 3049ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_ImplicitConversion: 3050ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_CStyleCast: 3051f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian case Sema::CCK_OtherCast: 3052ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis break; 3053ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis case Sema::CCK_FunctionalCast: 3054ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 3055ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 3056ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 3057ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CFBridgeName) { 3058f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian if (CCK == Sema::CCK_OtherCast) { 3059f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian if (const CXXNamedCastExpr *NCE = dyn_cast<CXXNamedCastExpr>(realCast)) { 3060f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian SourceRange range(NCE->getOperatorLoc(), 3061f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian NCE->getAngleBrackets().getEnd()); 3062f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian SmallString<32> BridgeCall; 3063f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian 3064f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian SourceManager &SM = S.getSourceManager(); 3065f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian char PrevChar = *SM.getCharacterData(range.getBegin().getLocWithOffset(-1)); 3066f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian if (Lexer::isIdentifierBodyChar(PrevChar, S.getLangOpts())) 3067f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian BridgeCall += ' '; 3068f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian 3069f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian BridgeCall += CFBridgeName; 3070f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian DiagB.AddFixItHint(FixItHint::CreateReplacement(range, BridgeCall)); 3071f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian } 3072f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian return; 3073f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian } 3074ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr; 3075ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CStyleCastExpr *CCE = dyn_cast<CStyleCastExpr>(castedE)) 3076ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = CCE->getSubExpr(); 3077ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castedE = castedE->IgnoreImpCasts(); 3078ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 3079d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 3080d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose SmallString<32> BridgeCall; 3081d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 3082d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose SourceManager &SM = S.getSourceManager(); 3083d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose char PrevChar = *SM.getCharacterData(range.getBegin().getLocWithOffset(-1)); 3084d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose if (Lexer::isIdentifierBodyChar(PrevChar, S.getLangOpts())) 3085d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall += ' '; 3086d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 3087d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall += CFBridgeName; 3088d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose 3089ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 3090ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 3091d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall)); 3092ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 3093d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall += '('; 3094ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 3095d880b3aa6d594d1a7f2d307c29378c6f59b216ffJordan Rose BridgeCall)); 3096ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 3097ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 3098ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 3099ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 3100ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis return; 3101ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 3102ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 3103ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (CCK == Sema::CCK_CStyleCast) { 3104ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(afterLParen, bridgeKeyword)); 3105f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian } else if (CCK == Sema::CCK_OtherCast) { 3106f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian if (const CXXNamedCastExpr *NCE = dyn_cast<CXXNamedCastExpr>(realCast)) { 3107f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian std::string castCode = "("; 3108f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian castCode += bridgeKeyword; 3109f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian castCode += castType.getAsString(); 3110f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian castCode += ")"; 3111f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian SourceRange Range(NCE->getOperatorLoc(), 3112f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian NCE->getAngleBrackets().getEnd()); 3113f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian DiagB.AddFixItHint(FixItHint::CreateReplacement(Range, castCode)); 3114f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian } 3115ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 3116ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis std::string castCode = "("; 3117ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += bridgeKeyword; 3118ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += castType.getAsString(); 3119ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += ")"; 3120ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis Expr *castedE = castExpr->IgnoreImpCasts(); 3121ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis SourceRange range = castedE->getSourceRange(); 3122ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis if (isa<ParenExpr>(castedE)) { 3123ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 3124ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 3125ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } else { 3126ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode += "("; 3127ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion(range.getBegin(), 3128ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis castCode)); 3129ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis DiagB.AddFixItHint(FixItHint::CreateInsertion( 3130ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis S.PP.getLocForEndOfToken(range.getEnd()), 3131ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis ")")); 3132ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 3133ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis } 3134ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis} 3135ae1b4af84ed0200c1040837ed62762557fbce5a7Argyrios Kyrtzidis 3136651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinestemplate <typename T> 3137651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesstatic inline T *getObjCBridgeAttr(const TypedefType *TD) { 3138651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TypedefNameDecl *TDNDecl = TD->getDecl(); 3139651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType QT = TDNDecl->getUnderlyingType(); 3140651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (QT->isPointerType()) { 3141651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QT = QT->getPointeeType(); 3142651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (const RecordType *RT = QT->getAs<RecordType>()) 3143ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (RecordDecl *RD = RT->getDecl()->getMostRecentDecl()) 3144651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return RD->getAttr<T>(); 3145651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 31466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 3147651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 3148651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3149651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesstatic ObjCBridgeRelatedAttr *ObjCBridgeRelatedAttrFromType(QualType T, 3150651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TypedefNameDecl *&TDNDecl) { 3151651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines while (const TypedefType *TD = dyn_cast<TypedefType>(T.getTypePtr())) { 3152651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TDNDecl = TD->getDecl(); 3153651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ObjCBridgeRelatedAttr *ObjCBAttr = 3154651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines getObjCBridgeAttr<ObjCBridgeRelatedAttr>(TD)) 3155651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return ObjCBAttr; 3156651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines T = TDNDecl->getUnderlyingType(); 3157651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 31586bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 3159651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 3160651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 31615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallstatic void 31625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCalldiagnoseObjCARCConversion(Sema &S, SourceRange castRange, 31635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType, ARCConversionTypeClass castACTC, 3164f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian Expr *castExpr, Expr *realCast, 3165f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian ARCConversionTypeClass exprACTC, 31665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Sema::CheckedConversionKind CCK) { 31675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation loc = 31685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall (castRange.isValid() ? castRange.getBegin() : castExpr->getExprLoc()); 31695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 31705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (S.makeUnavailableInSystemHeader(loc, 31715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall "converts between Objective-C and C pointers in -fobjc-arc")) 31725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 31735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 31745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castExprType = castExpr->getType(); 31756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypedefNameDecl *TDNDecl = nullptr; 3176651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if ((castACTC == ACTC_coreFoundation && exprACTC == ACTC_retainable && 3177651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCBridgeRelatedAttrFromType(castType, TDNDecl)) || 3178651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (exprACTC == ACTC_coreFoundation && castACTC == ACTC_retainable && 3179651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCBridgeRelatedAttrFromType(castExprType, TDNDecl))) 3180651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return; 31815acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 31825acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned srcKind = 0; 31835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall switch (exprACTC) { 31845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_none: 31855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_coreFoundation: 31865acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_voidPtr: 31875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isPointerType() ? 1 : 0); 31885acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 31895acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_retainable: 31905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = (castExprType->isBlockPointerType() ? 2 : 3); 31915acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 31925acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall case ACTC_indirectRetainable: 31935acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall srcKind = 4; 31945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall break; 31955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 31965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 31975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Check whether this could be fixed with a bridge cast. 31985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation afterLParen = S.PP.getLocForEndOfToken(castRange.getBegin()); 31995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceLocation noteLoc = afterLParen.isValid() ? afterLParen : loc; 32005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 32015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from an ARC type to a CF type. 32025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (castACTC == ACTC_retainable && isAnyRetainable(exprACTC)) { 320352b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian 32045acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 32055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 32065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // of C pointer type 32075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 32085acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castType->isBlockPointerType()) // to ObjC|block type 32095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 32105acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 32115acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 3212684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = S.isKnownName("CFBridgingRelease"); 32132f71622dc8888e6da7ce786e42e8e9fbab075de6Jordan Rose ACCResult CreateRule = 321424b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian ARCCastChecker(S.Context, exprACTC, castACTC, true).Visit(castExpr); 32152f71622dc8888e6da7ce786e42e8e9fbab075de6Jordan Rose assert(CreateRule != ACC_bottom && "This cast should already be accepted."); 321624b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian if (CreateRule != ACC_plusOne) 3217607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 3218f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian DiagnosticBuilder DiagB = 3219f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian (CCK != Sema::CCK_OtherCast) ? S.Diag(noteLoc, diag::note_arc_bridge) 3220f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian : S.Diag(noteLoc, diag::note_arc_cstyle_bridge); 32216bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 3222607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 32236bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines castType, castExpr, realCast, "__bridge ", 32246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 3225607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 322674cb390d238b55cede882ef5f598215c3537ae95Fariborz Jahanian if (CreateRule != ACC_plusZero) 3227607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 3228f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian DiagnosticBuilder DiagB = 3229f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian (CCK == Sema::CCK_OtherCast && !br) ? 3230f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian S.Diag(noteLoc, diag::note_arc_cstyle_bridge_transfer) << castExprType : 3231f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian S.Diag(br ? castExpr->getExprLoc() : noteLoc, 3232f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian diag::note_arc_bridge_transfer) 3233f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian << castExprType << br; 32346bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 3235607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 3236f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian castType, castExpr, realCast, "__bridge_transfer ", 32376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines br ? "CFBridgingRelease" : nullptr); 3238607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 32395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 32405acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 32415acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 32426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 32435acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // Bridge from a CF type to an ARC type. 32445acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC)) { 3245684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = S.isKnownName("CFBridgingRetain"); 32465acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_cast_requires_bridge) 32475acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(CCK == Sema::CCK_ImplicitConversion) // cast|implicit 32485acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << unsigned(castExprType->isBlockPointerType()) // of ObjC|block type 32495acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExprType 32505acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << 2 // to C pointer type 32515acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castType 32525acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange 32535acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castExpr->getSourceRange(); 325424b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian ACCResult CreateRule = 325524b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian ARCCastChecker(S.Context, exprACTC, castACTC, true).Visit(castExpr); 32562f71622dc8888e6da7ce786e42e8e9fbab075de6Jordan Rose assert(CreateRule != ACC_bottom && "This cast should already be accepted."); 325724b2ab7b5939a7298b040216dcd93c838f42d8d0Fariborz Jahanian if (CreateRule != ACC_plusOne) 3258607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 3259f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian DiagnosticBuilder DiagB = 3260f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian (CCK != Sema::CCK_OtherCast) ? S.Diag(noteLoc, diag::note_arc_bridge) 3261f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian : S.Diag(noteLoc, diag::note_arc_cstyle_bridge); 3262607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 32636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines castType, castExpr, realCast, "__bridge ", 32646bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr); 3265607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 326674cb390d238b55cede882ef5f598215c3537ae95Fariborz Jahanian if (CreateRule != ACC_plusZero) 3267607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian { 3268f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian DiagnosticBuilder DiagB = 3269f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian (CCK == Sema::CCK_OtherCast && !br) ? 3270f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian S.Diag(noteLoc, diag::note_arc_cstyle_bridge_retained) << castType : 3271f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian S.Diag(br ? castExpr->getExprLoc() : noteLoc, 3272f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian diag::note_arc_bridge_retained) 3273f0b1a0ee4787cd60a34951950baa6dd7d3d53a64Fariborz Jahanian << castType << br; 32746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 3275607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian addFixitForObjCARCConversion(S, DiagB, CCK, afterLParen, 3276f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian castType, castExpr, realCast, "__bridge_retained ", 32776bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines br ? "CFBridgingRetain" : nullptr); 3278607f587a8cdf590f947a0248df8f18082eac8229Fariborz Jahanian } 32795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 32805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return; 32815acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } 32825acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 32835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall S.Diag(loc, diag::err_arc_mismatched_cast) 32845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << (CCK != Sema::CCK_ImplicitConversion) 32855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << srcKind << castExprType << castType 32865acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall << castRange << castExpr->getSourceRange(); 32875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 32885acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 3289651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinestemplate <typename TB> 3290ef8225444452a1486bd721f3285301fe84643b00Stephen Hinesstatic bool CheckObjCBridgeNSCast(Sema &S, QualType castType, Expr *castExpr, 3291ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool &HadTheAttribute, bool warn) { 3292e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian QualType T = castExpr->getType(); 3293ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HadTheAttribute = false; 3294e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian while (const TypedefType *TD = dyn_cast<TypedefType>(T.getTypePtr())) { 3295e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian TypedefNameDecl *TDNDecl = TD->getDecl(); 3296651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TB *ObjCBAttr = getObjCBridgeAttr<TB>(TD)) { 32970f3bb9eb07a0cfd49929ca0d70bbe13b0aa74affFariborz Jahanian if (IdentifierInfo *Parm = ObjCBAttr->getBridgedType()) { 3298ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HadTheAttribute = true; 32996bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NamedDecl *Target = nullptr; 3300e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian // Check for an existing type with this name. 3301e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian LookupResult R(S, DeclarationName(Parm), SourceLocation(), 3302e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian Sema::LookupOrdinaryName); 3303e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian if (S.LookupName(R, S.TUScope)) { 33049571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian Target = R.getFoundDecl(); 33059571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian if (Target && isa<ObjCInterfaceDecl>(Target)) { 33069571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian ObjCInterfaceDecl *ExprClass = cast<ObjCInterfaceDecl>(Target); 33079571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian if (const ObjCObjectPointerType *InterfacePointerType = 33089571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian castType->getAsObjCInterfacePointerType()) { 33099571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian ObjCInterfaceDecl *CastClass 33109571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian = InterfacePointerType->getObjectType()->getInterface(); 3311651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if ((CastClass == ExprClass) || 3312651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (CastClass && ExprClass->isSuperClassOf(CastClass))) 3313ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3314ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (warn) 3315ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(castExpr->getLocStart(), diag::warn_objc_invalid_bridge) 3316ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << T << Target->getName() << castType->getPointeeType(); 3317ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return false; 3318651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (castType->isObjCIdType() || 3319651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (S.Context.ObjCObjectAdoptsQTypeProtocols( 3320651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines castType, ExprClass))) 3321651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // ok to cast to 'id'. 3322651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // casting to id<p-list> is ok if bridge type adopts all of 3323651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // p-list protocols. 3324ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3325651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else { 3326ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (warn) { 3327ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(castExpr->getLocStart(), diag::warn_objc_invalid_bridge) 3328ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << T << Target->getName() << castType; 3329ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3330ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(Target->getLocStart(), diag::note_declared_at); 3331ef8225444452a1486bd721f3285301fe84643b00Stephen Hines } 3332ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return false; 333300be52d19eba3aaa3a154d8cdf4d47240e0dc7d0Fariborz Jahanian } 3334e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian } 3335e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian } 3336749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian S.Diag(castExpr->getLocStart(), diag::err_objc_cf_bridged_not_interface) 3337651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << castExpr->getType() << Parm; 33389571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian S.Diag(TDNDecl->getLocStart(), diag::note_declared_at); 33399571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian if (Target) 33409571ab16538ea5fb8b405b74a1683b5c5880637cFariborz Jahanian S.Diag(Target->getLocStart(), diag::note_declared_at); 3341ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3342e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian } 3343ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return false; 3344e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian } 3345e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian T = TDNDecl->getUnderlyingType(); 3346e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian } 3347ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3348e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian} 3349e78728a6a6b624ad39a1accf297c773a1e427ba4Fariborz Jahanian 3350651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinestemplate <typename TB> 3351ef8225444452a1486bd721f3285301fe84643b00Stephen Hinesstatic bool CheckObjCBridgeCFCast(Sema &S, QualType castType, Expr *castExpr, 3352ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool &HadTheAttribute, bool warn) { 3353749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian QualType T = castType; 3354ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HadTheAttribute = false; 3355749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian while (const TypedefType *TD = dyn_cast<TypedefType>(T.getTypePtr())) { 3356749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian TypedefNameDecl *TDNDecl = TD->getDecl(); 3357651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TB *ObjCBAttr = getObjCBridgeAttr<TB>(TD)) { 33580f3bb9eb07a0cfd49929ca0d70bbe13b0aa74affFariborz Jahanian if (IdentifierInfo *Parm = ObjCBAttr->getBridgedType()) { 3359ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HadTheAttribute = true; 33606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NamedDecl *Target = nullptr; 3361749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian // Check for an existing type with this name. 3362749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian LookupResult R(S, DeclarationName(Parm), SourceLocation(), 3363749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian Sema::LookupOrdinaryName); 3364749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian if (S.LookupName(R, S.TUScope)) { 3365749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian Target = R.getFoundDecl(); 3366749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian if (Target && isa<ObjCInterfaceDecl>(Target)) { 3367749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian ObjCInterfaceDecl *CastClass = cast<ObjCInterfaceDecl>(Target); 3368749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian if (const ObjCObjectPointerType *InterfacePointerType = 3369749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian castExpr->getType()->getAsObjCInterfacePointerType()) { 3370749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian ObjCInterfaceDecl *ExprClass 3371749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian = InterfacePointerType->getObjectType()->getInterface(); 3372651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if ((CastClass == ExprClass) || 3373651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (ExprClass && CastClass->isSuperClassOf(ExprClass))) 3374ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3375ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (warn) { 3376ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(castExpr->getLocStart(), diag::warn_objc_invalid_bridge_to_cf) 3377ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << castExpr->getType()->getPointeeType() << T; 3378ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3379ef8225444452a1486bd721f3285301fe84643b00Stephen Hines } 3380ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return false; 3381651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (castExpr->getType()->isObjCIdType() || 3382651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (S.Context.QIdProtocolsAdoptObjCObjectProtocols( 3383651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines castExpr->getType(), CastClass))) 3384651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // ok to cast an 'id' expression to a CFtype. 3385651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // ok to cast an 'id<plist>' expression to CFtype provided plist 3386651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // adopts all of CFtype's ObjetiveC's class plist. 3387ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3388651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else { 3389ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (warn) { 3390ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(castExpr->getLocStart(), diag::warn_objc_invalid_bridge_to_cf) 3391ef8225444452a1486bd721f3285301fe84643b00Stephen Hines << castExpr->getType() << castType; 3392ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3393ef8225444452a1486bd721f3285301fe84643b00Stephen Hines S.Diag(Target->getLocStart(), diag::note_declared_at); 3394ef8225444452a1486bd721f3285301fe84643b00Stephen Hines } 3395ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return false; 3396749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian } 3397749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian } 3398749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian } 3399749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian S.Diag(castExpr->getLocStart(), diag::err_objc_ns_bridged_invalid_cfobject) 3400749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian << castExpr->getType() << castType; 3401749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian S.Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3402749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian if (Target) 3403749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian S.Diag(Target->getLocStart(), diag::note_declared_at); 3404ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3405749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian } 3406ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return false; 3407749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian } 3408749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian T = TDNDecl->getUnderlyingType(); 3409749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian } 3410ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return true; 3411749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian} 3412749152bf05e859596895034acddc4188ed23eeb3Fariborz Jahanian 3413651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesvoid Sema::CheckTollFreeBridgeCast(QualType castType, Expr *castExpr) { 34146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!getLangOpts().ObjC1) 34156bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return; 3416651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // warn in presence of __bridge casting to or from a toll free bridge cast. 3417651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ARCConversionTypeClass exprACTC = classifyTypeForARCConversion(castExpr->getType()); 3418651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ARCConversionTypeClass castACTC = classifyTypeForARCConversion(castType); 3419651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (castACTC == ACTC_retainable && exprACTC == ACTC_coreFoundation) { 3420ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool HasObjCBridgeAttr; 3421ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool ObjCBridgeAttrWillNotWarn = 3422ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeNSCast<ObjCBridgeAttr>(*this, castType, castExpr, HasObjCBridgeAttr, 3423ef8225444452a1486bd721f3285301fe84643b00Stephen Hines false); 3424ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCBridgeAttrWillNotWarn && HasObjCBridgeAttr) 3425ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return; 3426ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool HasObjCBridgeMutableAttr; 3427ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool ObjCBridgeMutableAttrWillNotWarn = 3428ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeNSCast<ObjCBridgeMutableAttr>(*this, castType, castExpr, 3429ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HasObjCBridgeMutableAttr, false); 3430ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCBridgeMutableAttrWillNotWarn && HasObjCBridgeMutableAttr) 3431ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return; 3432ef8225444452a1486bd721f3285301fe84643b00Stephen Hines 3433ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (HasObjCBridgeAttr) 3434ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeNSCast<ObjCBridgeAttr>(*this, castType, castExpr, HasObjCBridgeAttr, 3435ef8225444452a1486bd721f3285301fe84643b00Stephen Hines true); 3436ef8225444452a1486bd721f3285301fe84643b00Stephen Hines else if (HasObjCBridgeMutableAttr) 3437ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeNSCast<ObjCBridgeMutableAttr>(*this, castType, castExpr, 3438ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HasObjCBridgeMutableAttr, true); 3439651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3440651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else if (castACTC == ACTC_coreFoundation && exprACTC == ACTC_retainable) { 3441ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool HasObjCBridgeAttr; 3442ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool ObjCBridgeAttrWillNotWarn = 3443ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeCFCast<ObjCBridgeAttr>(*this, castType, castExpr, HasObjCBridgeAttr, 3444ef8225444452a1486bd721f3285301fe84643b00Stephen Hines false); 3445ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCBridgeAttrWillNotWarn && HasObjCBridgeAttr) 3446ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return; 3447ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool HasObjCBridgeMutableAttr; 3448ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool ObjCBridgeMutableAttrWillNotWarn = 3449ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeCFCast<ObjCBridgeMutableAttr>(*this, castType, castExpr, 3450ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HasObjCBridgeMutableAttr, false); 3451ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCBridgeMutableAttrWillNotWarn && HasObjCBridgeMutableAttr) 3452ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return; 3453ef8225444452a1486bd721f3285301fe84643b00Stephen Hines 3454ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (HasObjCBridgeAttr) 3455ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeCFCast<ObjCBridgeAttr>(*this, castType, castExpr, HasObjCBridgeAttr, 3456ef8225444452a1486bd721f3285301fe84643b00Stephen Hines true); 3457ef8225444452a1486bd721f3285301fe84643b00Stephen Hines else if (HasObjCBridgeMutableAttr) 3458ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeCFCast<ObjCBridgeMutableAttr>(*this, castType, castExpr, 3459ef8225444452a1486bd721f3285301fe84643b00Stephen Hines HasObjCBridgeMutableAttr, true); 3460651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3461651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 3462651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3463ef8225444452a1486bd721f3285301fe84643b00Stephen Hinesvoid Sema::CheckObjCBridgeRelatedCast(QualType castType, Expr *castExpr) { 3464ef8225444452a1486bd721f3285301fe84643b00Stephen Hines QualType SrcType = castExpr->getType(); 3465ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCPropertyRefExpr *PRE = dyn_cast<ObjCPropertyRefExpr>(castExpr)) { 3466ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (PRE->isExplicitProperty()) { 3467ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCPropertyDecl *PDecl = PRE->getExplicitProperty()) 3468ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SrcType = PDecl->getType(); 3469ef8225444452a1486bd721f3285301fe84643b00Stephen Hines } 3470ef8225444452a1486bd721f3285301fe84643b00Stephen Hines else if (PRE->isImplicitProperty()) { 3471ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (ObjCMethodDecl *Getter = PRE->getImplicitPropertyGetter()) 3472ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SrcType = Getter->getReturnType(); 3473ef8225444452a1486bd721f3285301fe84643b00Stephen Hines 3474ef8225444452a1486bd721f3285301fe84643b00Stephen Hines } 3475ef8225444452a1486bd721f3285301fe84643b00Stephen Hines } 3476ef8225444452a1486bd721f3285301fe84643b00Stephen Hines 3477ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ARCConversionTypeClass srcExprACTC = classifyTypeForARCConversion(SrcType); 3478ef8225444452a1486bd721f3285301fe84643b00Stephen Hines ARCConversionTypeClass castExprACTC = classifyTypeForARCConversion(castType); 3479ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (srcExprACTC != ACTC_retainable || castExprACTC != ACTC_coreFoundation) 3480ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return; 3481ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CheckObjCBridgeRelatedConversions(castExpr->getLocStart(), 3482ef8225444452a1486bd721f3285301fe84643b00Stephen Hines castType, SrcType, castExpr); 3483ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return; 3484ef8225444452a1486bd721f3285301fe84643b00Stephen Hines} 3485ef8225444452a1486bd721f3285301fe84643b00Stephen Hines 34866bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesbool Sema::CheckTollFreeBridgeStaticCast(QualType castType, Expr *castExpr, 34876bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CastKind &Kind) { 34886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!getLangOpts().ObjC1) 34896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return false; 34906bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ARCConversionTypeClass exprACTC = 34916bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines classifyTypeForARCConversion(castExpr->getType()); 34926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ARCConversionTypeClass castACTC = classifyTypeForARCConversion(castType); 34936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if ((castACTC == ACTC_retainable && exprACTC == ACTC_coreFoundation) || 34946bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines (castACTC == ACTC_coreFoundation && exprACTC == ACTC_retainable)) { 34956bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CheckTollFreeBridgeCast(castType, castExpr); 34966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Kind = (castACTC == ACTC_coreFoundation) ? CK_BitCast 34976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : CK_CPointerToObjCPointerCast; 34986bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return true; 34996bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 35006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return false; 35016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines} 3502651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3503651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesbool Sema::checkObjCBridgeRelatedComponents(SourceLocation Loc, 3504651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType DestType, QualType SrcType, 3505651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCInterfaceDecl *&RelatedClass, 3506651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl *&ClassMethod, 3507651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCMethodDecl *&InstanceMethod, 3508651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TypedefNameDecl *&TDNDecl, 3509651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool CfToNs) { 3510651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType T = CfToNs ? SrcType : DestType; 3511651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCBridgeRelatedAttr *ObjCBAttr = ObjCBridgeRelatedAttrFromType(T, TDNDecl); 3512651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!ObjCBAttr) 3513651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3514651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3515651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines IdentifierInfo *RCId = ObjCBAttr->getRelatedClass(); 3516651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines IdentifierInfo *CMId = ObjCBAttr->getClassMethod(); 3517651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines IdentifierInfo *IMId = ObjCBAttr->getInstanceMethod(); 3518651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!RCId) 3519651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 35206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NamedDecl *Target = nullptr; 3521651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Check for an existing type with this name. 3522651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines LookupResult R(*this, DeclarationName(RCId), SourceLocation(), 3523651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Sema::LookupOrdinaryName); 3524651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!LookupName(R, TUScope)) { 3525651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_invalid_class) << RCId 3526651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType; 3527651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3528651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3529651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3530651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Target = R.getFoundDecl(); 3531651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Target && isa<ObjCInterfaceDecl>(Target)) 3532651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RelatedClass = cast<ObjCInterfaceDecl>(Target); 3533651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else { 3534651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_invalid_class_name) << RCId 3535651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType; 3536651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3537651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Target) 3538651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Target->getLocStart(), diag::note_declared_at); 3539651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3540651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3541651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3542651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Check for an existing class method with the given selector name. 3543651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (CfToNs && CMId) { 3544651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Selector Sel = Context.Selectors.getUnarySelector(CMId); 3545651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClassMethod = RelatedClass->lookupMethod(Sel, false); 3546651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!ClassMethod) { 3547651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_known_method) 3548651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType << Sel << false; 3549651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3550651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3551651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3552651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3553651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3554651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Check for an existing instance method with the given selector name. 3555651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!CfToNs && IMId) { 3556651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Selector Sel = Context.Selectors.getNullarySelector(IMId); 3557651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines InstanceMethod = RelatedClass->lookupMethod(Sel, true); 3558651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!InstanceMethod) { 3559651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_known_method) 3560651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType << Sel << true; 3561651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3562651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3563651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3564651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3565651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 3566651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 3567651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3568651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesbool 3569651f13cea278ec967336033dd032faef0e9fc2ecStephen HinesSema::CheckObjCBridgeRelatedConversions(SourceLocation Loc, 3570651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType DestType, QualType SrcType, 3571651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *&SrcExpr) { 3572651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ARCConversionTypeClass rhsExprACTC = classifyTypeForARCConversion(SrcType); 3573651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ARCConversionTypeClass lhsExprACTC = classifyTypeForARCConversion(DestType); 3574651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool CfToNs = (rhsExprACTC == ACTC_coreFoundation && lhsExprACTC == ACTC_retainable); 3575651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool NsToCf = (rhsExprACTC == ACTC_retainable && lhsExprACTC == ACTC_coreFoundation); 3576651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!CfToNs && !NsToCf) 3577651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3578651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3579651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ObjCInterfaceDecl *RelatedClass; 35806bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCMethodDecl *ClassMethod = nullptr; 35816bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCMethodDecl *InstanceMethod = nullptr; 35826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypedefNameDecl *TDNDecl = nullptr; 3583651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!checkObjCBridgeRelatedComponents(Loc, DestType, SrcType, RelatedClass, 3584651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClassMethod, InstanceMethod, TDNDecl, CfToNs)) 3585651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3586651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3587651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (CfToNs) { 3588651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Implicit conversion from CF to ObjC object is needed. 3589651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ClassMethod) { 3590651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string ExpressionString = "["; 3591651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString += RelatedClass->getNameAsString(); 3592651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString += " "; 3593651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString += ClassMethod->getSelector().getAsString(); 3594651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceLocation SrcExprEndLoc = PP.getLocForEndOfToken(SrcExpr->getLocEnd()); 3595651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Provide a fixit: [RelatedClass ClassMethod SrcExpr] 3596651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_known_method) 3597651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType << ClassMethod->getSelector() << false 3598651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateInsertion(SrcExpr->getLocStart(), ExpressionString) 3599651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateInsertion(SrcExprEndLoc, "]"); 3600651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(RelatedClass->getLocStart(), diag::note_declared_at); 3601651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3602651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3603651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType receiverType = 3604651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Context.getObjCInterfaceType(RelatedClass); 3605651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Argument. 3606651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *args[] = { SrcExpr }; 3607651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult msg = BuildClassMessageImplicit(receiverType, false, 3608651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClassMethod->getLocation(), 3609651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClassMethod->getSelector(), ClassMethod, 3610651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines MultiExprArg(args, 1)); 3611ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SrcExpr = msg.get(); 3612651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 3613651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3614651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3615651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else { 3616651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Implicit conversion from ObjC type to CF object is needed. 3617651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (InstanceMethod) { 3618651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string ExpressionString; 3619651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceLocation SrcExprEndLoc = PP.getLocForEndOfToken(SrcExpr->getLocEnd()); 3620651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (InstanceMethod->isPropertyAccessor()) 3621651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (const ObjCPropertyDecl *PDecl = InstanceMethod->findPropertyDecl()) { 3622651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // fixit: ObjectExpr.propertyname when it is aproperty accessor. 3623651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString = "."; 3624651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString += PDecl->getNameAsString(); 3625651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_known_method) 3626651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType << InstanceMethod->getSelector() << true 3627651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateInsertion(SrcExprEndLoc, ExpressionString); 3628651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3629651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ExpressionString.empty()) { 3630651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Provide a fixit: [ObjectExpr InstanceMethod] 3631651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString = " "; 3632651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString += InstanceMethod->getSelector().getAsString(); 3633651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpressionString += "]"; 3634651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3635651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Loc, diag::err_objc_bridged_related_known_method) 3636651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << SrcType << DestType << InstanceMethod->getSelector() << true 3637651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateInsertion(SrcExpr->getLocStart(), "[") 3638651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateInsertion(SrcExprEndLoc, ExpressionString); 3639651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3640651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(RelatedClass->getLocStart(), diag::note_declared_at); 3641651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(TDNDecl->getLocStart(), diag::note_declared_at); 3642651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3643651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExprResult msg = 3644651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines BuildInstanceMessageImplicit(SrcExpr, SrcType, 3645651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines InstanceMethod->getLocation(), 3646651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines InstanceMethod->getSelector(), 3647651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines InstanceMethod, None); 3648ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SrcExpr = msg.get(); 3649651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 3650651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3651651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 3652651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 3653651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 3654651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 36555acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallSema::ARCConversionResult 3656f85e193739c953358c865005855253af4f68a497John McCallSema::CheckObjCARCConversion(SourceRange castRange, QualType castType, 365701ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian Expr *&castExpr, CheckedConversionKind CCK, 3658ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool DiagnoseCFAudited, 3659ef8225444452a1486bd721f3285301fe84643b00Stephen Hines BinaryOperatorKind Opc) { 3660f85e193739c953358c865005855253af4f68a497John McCall QualType castExprType = castExpr->getType(); 36612cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 36622cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For the purposes of the classification, we assume reference types 36632cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // will bind to temporaries. 36642cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall QualType effCastType = castType; 36652cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (const ReferenceType *ref = castType->getAs<ReferenceType>()) 36662cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall effCastType = ref->getPointeeType(); 3667f85e193739c953358c865005855253af4f68a497John McCall 3668f85e193739c953358c865005855253af4f68a497John McCall ARCConversionTypeClass exprACTC = classifyTypeForARCConversion(castExprType); 36692cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ARCConversionTypeClass castACTC = classifyTypeForARCConversion(effCastType); 36706d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian if (exprACTC == castACTC) { 36716d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // check for viablity and report error if casting an rvalue to a 36726d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian // life-time qualifier. 3673fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if ((castACTC == ACTC_retainable) && 36746d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian (CCK == CCK_CStyleCast || CCK == CCK_OtherCast) && 3675fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castType != castExprType)) { 3676fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian const Type *DT = castType.getTypePtr(); 3677fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QualType QDT = castType; 3678fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // We desugar some types but not others. We ignore those 3679fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // that cannot happen in a cast; i.e. auto, and those which 3680fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian // should not be de-sugared; i.e typedef. 3681fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (const ParenType *PT = dyn_cast<ParenType>(DT)) 3682fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = PT->desugar(); 3683fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const TypeOfType *TP = dyn_cast<TypeOfType>(DT)) 3684fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = TP->desugar(); 3685fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian else if (const AttributedType *AT = dyn_cast<AttributedType>(DT)) 3686fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT = AT->desugar(); 3687fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian if (QDT != castType && 3688fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian QDT.getObjCLifetime() != Qualifiers::OCL_None) { 3689fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian SourceLocation loc = 3690fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian (castRange.isValid() ? castRange.getBegin() 3691fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian : castExpr->getExprLoc()); 3692fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian Diag(loc, diag::err_arc_nolifetime_behavior); 3693fc2eff57d7497578e8f08a5ee520ad3886a51186Fariborz Jahanian } 36946d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 36956d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian return ACR_okay; 36966d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian } 36976d09f01af70bbd58ddbccb0a22f5479782b31797Fariborz Jahanian 36985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (isAnyCLike(exprACTC) && isAnyCLike(castACTC)) return ACR_okay; 36992cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 37002cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Allow all of these types to be cast to integer types (but not 37012cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // vice-versa). 37022cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_none && castType->isIntegralType(Context)) 37035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 3704f85e193739c953358c865005855253af4f68a497John McCall 3705f85e193739c953358c865005855253af4f68a497John McCall // Allow casts between pointers to lifetime types (e.g., __strong id*) 3706f85e193739c953358c865005855253af4f68a497John McCall // and pointers to void (e.g., cv void *). Casting from void* to lifetime* 3707f85e193739c953358c865005855253af4f68a497John McCall // must be explicit. 37082cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (exprACTC == ACTC_indirectRetainable && castACTC == ACTC_voidPtr) 37095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 37102cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall if (castACTC == ACTC_indirectRetainable && exprACTC == ACTC_voidPtr && 37112cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CCK != CCK_ImplicitConversion) 37125acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 37132cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 3714533b34fa7bce6aee7a76f962f02afdf022df6d08Fariborz Jahanian switch (ARCCastChecker(Context, exprACTC, castACTC, false).Visit(castExpr)) { 37152cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // For invalid casts, fall through. 37162cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_invalid: 37172cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall break; 37182cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 37192cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // Do nothing for both bottom and +0. 37202cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_bottom: 37212cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusZero: 37225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 37232cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall 37242cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall // If the result is +1, consume it here. 37252cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall case ACC_plusOne: 37262cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall castExpr = ImplicitCastExpr::Create(Context, castExpr->getType(), 37272cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall CK_ARCConsumeObject, castExpr, 37286bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, VK_RValue); 37292cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall ExprNeedsCleanups = true; 37305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 37312cf031d33ce6801dc11183a3cb48168f53fe06c4John McCall } 37325acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37335acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // If this is a non-implicit cast from id or block type to a 37345acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // CoreFoundation type, delay complaining in case the cast is used 37355acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // in an acceptable context. 37365acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (exprACTC == ACTC_retainable && isAnyRetainable(castACTC) && 37375acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK != CCK_ImplicitConversion) 37385acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_unbridged; 37395acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 3740651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Do not issue bridge cast" diagnostic when implicit casting a cstring 3741651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // to 'NSString *'. Let caller issue a normal mismatched diagnostic with 3742651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // suitable fix-it. 3743651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (castACTC == ACTC_retainable && exprACTC == ACTC_none && 3744651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConversionToObjCStringLiteralCheck(castType, castExpr)) 3745651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return ACR_okay; 3746651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 374701ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian // Do not issue "bridge cast" diagnostic when implicit casting 374801ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian // a retainable object to a CF type parameter belonging to an audited 374901ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian // CF API function. Let caller issue a normal type mismatched diagnostic 375001ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian // instead. 375101ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian if (!DiagnoseCFAudited || exprACTC != ACTC_retainable || 375201ad048b70508bf21174cd25512b57f87b7c57a6Fariborz Jahanian castACTC != ACTC_coreFoundation) 3753ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (!(exprACTC == ACTC_voidPtr && castACTC == ACTC_retainable && 3754ef8225444452a1486bd721f3285301fe84643b00Stephen Hines (Opc == BO_NE || Opc == BO_EQ))) 3755ef8225444452a1486bd721f3285301fe84643b00Stephen Hines diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 3756ef8225444452a1486bd721f3285301fe84643b00Stephen Hines castExpr, castExpr, exprACTC, CCK); 37575acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return ACR_okay; 37585acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 37595acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37605acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// Given that we saw an expression with the ARCUnbridgedCastTy 37615acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// placeholder type, complain bitterly. 37625acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallvoid Sema::diagnoseARCUnbridgedCast(Expr *e) { 37635acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall // We expect the spurious ImplicitCastExpr to already have been stripped. 37645acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 37655acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CastExpr *realCast = cast<CastExpr>(e->IgnoreParens()); 37665acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37675acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SourceRange castRange; 37685acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall QualType castType; 37695acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CheckedConversionKind CCK; 37705acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37715acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (CStyleCastExpr *cast = dyn_cast<CStyleCastExpr>(realCast)) { 37725acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = SourceRange(cast->getLParenLoc(), cast->getRParenLoc()); 37735acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 37745acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_CStyleCast; 37755acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (ExplicitCastExpr *cast = dyn_cast<ExplicitCastExpr>(realCast)) { 37765acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castRange = cast->getTypeInfoAsWritten()->getTypeLoc().getSourceRange(); 37775acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getTypeAsWritten(); 37785acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_OtherCast; 37795acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 37805acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall castType = cast->getType(); 37815acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall CCK = CCK_ImplicitConversion; 3782f85e193739c953358c865005855253af4f68a497John McCall } 37835acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37845acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall ARCConversionTypeClass castACTC = 37855acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall classifyTypeForARCConversion(castType.getNonReferenceType()); 37865acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37875acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *castExpr = realCast->getSubExpr(); 37885acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(classifyTypeForARCConversion(castExpr->getType()) == ACTC_retainable); 37895acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37905acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall diagnoseObjCARCConversion(*this, castRange, castType, castACTC, 3791f799ae1afb897151a84a7170951e367d8307ae04Fariborz Jahanian castExpr, realCast, ACTC_retainable, CCK); 37925acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall} 37935acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37945acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// stripARCUnbridgedCast - Given an expression of ARCUnbridgedCast 37955acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall/// type, remove the placeholder cast. 37965acb0c98b363400f6ade0ae7250f0102224e806bJohn McCallExpr *Sema::stripARCUnbridgedCast(Expr *e) { 37975acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(e->hasPlaceholderType(BuiltinType::ARCUnbridgedCast)); 37985acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 37995acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (ParenExpr *pe = dyn_cast<ParenExpr>(e)) { 38005acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(pe->getSubExpr()); 38015acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) ParenExpr(pe->getLParen(), pe->getRParen(), sub); 38025acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (UnaryOperator *uo = dyn_cast<UnaryOperator>(e)) { 38035acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(uo->getOpcode() == UO_Extension); 38045acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = stripARCUnbridgedCast(uo->getSubExpr()); 38055acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) UnaryOperator(sub, UO_Extension, sub->getType(), 38065acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub->getValueKind(), sub->getObjectKind(), 38075acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall uo->getOperatorLoc()); 38085acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else if (GenericSelectionExpr *gse = dyn_cast<GenericSelectionExpr>(e)) { 38095acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(!gse->isResultDependent()); 38105acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 38115acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall unsigned n = gse->getNumAssocs(); 38125acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<Expr*, 4> subExprs(n); 38135acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall SmallVector<TypeSourceInfo*, 4> subTypes(n); 38145acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall for (unsigned i = 0; i != n; ++i) { 38155acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subTypes[i] = gse->getAssocTypeSourceInfo(i); 38165acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall Expr *sub = gse->getAssocExpr(i); 38175acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall if (i == gse->getResultIndex()) 38185acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall sub = stripARCUnbridgedCast(sub); 38195acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall subExprs[i] = sub; 3820f85e193739c953358c865005855253af4f68a497John McCall } 38215acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall 38225acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return new (Context) GenericSelectionExpr(Context, gse->getGenericLoc(), 38235acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getControllingExpr(), 38243b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer subTypes, subExprs, 38253b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer gse->getDefaultLoc(), 38265acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getRParenLoc(), 38275acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->containsUnexpandedParameterPack(), 38285acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall gse->getResultIndex()); 38295acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall } else { 38305acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall assert(isa<ImplicitCastExpr>(e) && "bad form of unbridged cast!"); 38315acb0c98b363400f6ade0ae7250f0102224e806bJohn McCall return cast<ImplicitCastExpr>(e)->getSubExpr(); 3832f85e193739c953358c865005855253af4f68a497John McCall } 3833f85e193739c953358c865005855253af4f68a497John McCall} 3834f85e193739c953358c865005855253af4f68a497John McCall 38357a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanianbool Sema::CheckObjCARCUnavailableWeakConversion(QualType castType, 38367a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType exprType) { 38377a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canCastType = 38387a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(castType).getUnqualifiedType(); 38397a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian QualType canExprType = 38407a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian Context.getCanonicalType(exprType).getUnqualifiedType(); 38417a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (isa<ObjCObjectPointerType>(canCastType) && 38427a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian castType.getObjCLifetime() == Qualifiers::OCL_Weak && 38437a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->isObjCObjectPointerType()) { 38447a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian if (const ObjCObjectPointerType *ObjT = 38457a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian canExprType->getAs<ObjCObjectPointerType>()) 3846a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith if (const ObjCInterfaceDecl *ObjI = ObjT->getInterfaceDecl()) 3847a8eaf008e92759142982f7b40720b2b2674bd663Richard Smith return !ObjI->isArcWeakrefUnavailable(); 38487a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian } 38497a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian return true; 38507a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian} 38517a084ec568f8336ec6f10011d0118a6b19e253cbFariborz Jahanian 38527e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall/// Look for an ObjCReclaimReturnedObject cast and destroy it. 38537e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCallstatic Expr *maybeUndoReclaimObject(Expr *e) { 38547e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // For now, we just undo operands that are *immediately* reclaim 38557e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // expressions, which prevents the vast majority of potential 38567e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // problems here. To catch them all, we'd need to rebuild arbitrary 38577e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // value-propagating subexpressions --- we can't reliably rebuild 38587e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // in-place because of expression sharing. 38597e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall if (ImplicitCastExpr *ice = dyn_cast<ImplicitCastExpr>(e)) 386033e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall if (ice->getCastKind() == CK_ARCReclaimReturnedObject) 38617e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return ice->getSubExpr(); 38627e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 38637e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall return e; 38647e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall} 38657e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall 3866f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::BuildObjCBridgedCast(SourceLocation LParenLoc, 3867f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3868f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3869f85e193739c953358c865005855253af4f68a497John McCall TypeSourceInfo *TSInfo, 3870f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 38714906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall ExprResult SubResult = UsualUnaryConversions(SubExpr); 38724906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall if (SubResult.isInvalid()) return ExprError(); 3873ef8225444452a1486bd721f3285301fe84643b00Stephen Hines SubExpr = SubResult.get(); 38744906cf97fb6b7aebf5b1b8b99762f0f8fe1f15eaJohn McCall 3875f85e193739c953358c865005855253af4f68a497John McCall QualType T = TSInfo->getType(); 3876f85e193739c953358c865005855253af4f68a497John McCall QualType FromType = SubExpr->getType(); 3877f85e193739c953358c865005855253af4f68a497John McCall 38781d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK; 38791d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall 3880f85e193739c953358c865005855253af4f68a497John McCall bool MustConsume = false; 3881f85e193739c953358c865005855253af4f68a497John McCall if (T->isDependentType() || SubExpr->isTypeDependent()) { 3882f85e193739c953358c865005855253af4f68a497John McCall // Okay: we'll build a dependent expression type. 38831d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_Dependent; 3884f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isObjCARCBridgableType() && FromType->isCARCBridgableType()) { 3885f85e193739c953358c865005855253af4f68a497John McCall // Casting CF -> id 38861d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = (T->isBlockPointerType() ? CK_AnyPointerToBlockPointerCast 38871d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall : CK_CPointerToObjCPointerCast); 3888f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3889f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 3890f85e193739c953358c865005855253af4f68a497John McCall break; 3891f85e193739c953358c865005855253af4f68a497John McCall 389252b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeRetained: { 3893684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = isKnownName("CFBridgingRelease"); 3894f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3895f85e193739c953358c865005855253af4f68a497John McCall << 2 3896f85e193739c953358c865005855253af4f68a497John McCall << FromType 3897f85e193739c953358c865005855253af4f68a497John McCall << (T->isBlockPointerType()? 1 : 0) 3898f85e193739c953358c865005855253af4f68a497John McCall << T 3899f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3900f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3901f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3902f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge"); 3903f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_transfer) 390452b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FromType << br 3905f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, 390652b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRelease " 390752b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian : "__bridge_transfer "); 3908f85e193739c953358c865005855253af4f68a497John McCall 3909f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3910f85e193739c953358c865005855253af4f68a497John McCall break; 391152b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3912f85e193739c953358c865005855253af4f68a497John McCall 3913f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeTransfer: 3914f85e193739c953358c865005855253af4f68a497John McCall // We must consume the Objective-C object produced by the cast. 3915f85e193739c953358c865005855253af4f68a497John McCall MustConsume = true; 3916f85e193739c953358c865005855253af4f68a497John McCall break; 3917f85e193739c953358c865005855253af4f68a497John McCall } 3918f85e193739c953358c865005855253af4f68a497John McCall } else if (T->isCARCBridgableType() && FromType->isObjCARCBridgableType()) { 3919f85e193739c953358c865005855253af4f68a497John McCall // Okay: id -> CF 39201d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 3921f85e193739c953358c865005855253af4f68a497John McCall switch (Kind) { 3922f85e193739c953358c865005855253af4f68a497John McCall case OBC_Bridge: 39237e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // Reclaiming a value that's going to be __bridge-casted to CF 39247e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall // is very dangerous, so we don't do it. 39257e5e5f4cc36fe50f46ad76dca7a266434c94f475John McCall SubExpr = maybeUndoReclaimObject(SubExpr); 3926f85e193739c953358c865005855253af4f68a497John McCall break; 3927f85e193739c953358c865005855253af4f68a497John McCall 3928f85e193739c953358c865005855253af4f68a497John McCall case OBC_BridgeRetained: 3929f85e193739c953358c865005855253af4f68a497John McCall // Produce the object before casting it. 3930f85e193739c953358c865005855253af4f68a497John McCall SubExpr = ImplicitCastExpr::Create(Context, FromType, 393133e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall CK_ARCProduceObject, 39326bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SubExpr, nullptr, VK_RValue); 3933f85e193739c953358c865005855253af4f68a497John McCall break; 3934f85e193739c953358c865005855253af4f68a497John McCall 393552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian case OBC_BridgeTransfer: { 3936684190b8dbe5258f4708ffbd816b8c5ee5b3502dArgyrios Kyrtzidis bool br = isKnownName("CFBridgingRetain"); 3937f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::err_arc_bridge_cast_wrong_kind) 3938f85e193739c953358c865005855253af4f68a497John McCall << (FromType->isBlockPointerType()? 1 : 0) 3939f85e193739c953358c865005855253af4f68a497John McCall << FromType 3940f85e193739c953358c865005855253af4f68a497John McCall << 2 3941f85e193739c953358c865005855253af4f68a497John McCall << T 3942f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3943f85e193739c953358c865005855253af4f68a497John McCall << Kind; 3944f85e193739c953358c865005855253af4f68a497John McCall 3945f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge) 3946f85e193739c953358c865005855253af4f68a497John McCall << FixItHint::CreateReplacement(BridgeKeywordLoc, "__bridge "); 3947f85e193739c953358c865005855253af4f68a497John McCall Diag(BridgeKeywordLoc, diag::note_arc_bridge_retained) 394852b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << T << br 394952b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian << FixItHint::CreateReplacement(BridgeKeywordLoc, 395052b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian br ? "CFBridgingRetain " : "__bridge_retained"); 3951f85e193739c953358c865005855253af4f68a497John McCall 3952f85e193739c953358c865005855253af4f68a497John McCall Kind = OBC_Bridge; 3953f85e193739c953358c865005855253af4f68a497John McCall break; 3954f85e193739c953358c865005855253af4f68a497John McCall } 395552b6236427e7b608eadaac2bf8f5a24dd16a1130Fariborz Jahanian } 3956f85e193739c953358c865005855253af4f68a497John McCall } else { 3957f85e193739c953358c865005855253af4f68a497John McCall Diag(LParenLoc, diag::err_arc_bridge_cast_incompatible) 3958f85e193739c953358c865005855253af4f68a497John McCall << FromType << T << Kind 3959f85e193739c953358c865005855253af4f68a497John McCall << SubExpr->getSourceRange() 3960f85e193739c953358c865005855253af4f68a497John McCall << TSInfo->getTypeLoc().getSourceRange(); 3961f85e193739c953358c865005855253af4f68a497John McCall return ExprError(); 3962f85e193739c953358c865005855253af4f68a497John McCall } 3963f85e193739c953358c865005855253af4f68a497John McCall 39641d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall Expr *Result = new (Context) ObjCBridgedCastExpr(LParenLoc, Kind, CK, 3965f85e193739c953358c865005855253af4f68a497John McCall BridgeKeywordLoc, 3966f85e193739c953358c865005855253af4f68a497John McCall TSInfo, SubExpr); 3967f85e193739c953358c865005855253af4f68a497John McCall 3968f85e193739c953358c865005855253af4f68a497John McCall if (MustConsume) { 3969f85e193739c953358c865005855253af4f68a497John McCall ExprNeedsCleanups = true; 397033e56f3273457bfa22c7c50bc46cf5a18216863dJohn McCall Result = ImplicitCastExpr::Create(Context, T, CK_ARCConsumeObject, Result, 39716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, VK_RValue); 3972f85e193739c953358c865005855253af4f68a497John McCall } 3973f85e193739c953358c865005855253af4f68a497John McCall 3974f85e193739c953358c865005855253af4f68a497John McCall return Result; 3975f85e193739c953358c865005855253af4f68a497John McCall} 3976f85e193739c953358c865005855253af4f68a497John McCall 3977f85e193739c953358c865005855253af4f68a497John McCallExprResult Sema::ActOnObjCBridgedCast(Scope *S, 3978f85e193739c953358c865005855253af4f68a497John McCall SourceLocation LParenLoc, 3979f85e193739c953358c865005855253af4f68a497John McCall ObjCBridgeCastKind Kind, 3980f85e193739c953358c865005855253af4f68a497John McCall SourceLocation BridgeKeywordLoc, 3981f85e193739c953358c865005855253af4f68a497John McCall ParsedType Type, 3982f85e193739c953358c865005855253af4f68a497John McCall SourceLocation RParenLoc, 3983f85e193739c953358c865005855253af4f68a497John McCall Expr *SubExpr) { 39846bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeSourceInfo *TSInfo = nullptr; 3985f85e193739c953358c865005855253af4f68a497John McCall QualType T = GetTypeFromParser(Type, &TSInfo); 3986651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Kind == OBC_Bridge) 3987651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CheckTollFreeBridgeCast(T, SubExpr); 3988f85e193739c953358c865005855253af4f68a497John McCall if (!TSInfo) 3989f85e193739c953358c865005855253af4f68a497John McCall TSInfo = Context.getTrivialTypeSourceInfo(T, LParenLoc); 3990f85e193739c953358c865005855253af4f68a497John McCall return BuildObjCBridgedCast(LParenLoc, Kind, BridgeKeywordLoc, TSInfo, 3991f85e193739c953358c865005855253af4f68a497John McCall SubExpr); 3992f85e193739c953358c865005855253af4f68a497John McCall} 3993