SemaDeclAttr.cpp revision 83cad4544f8a89fb6a611f330d71d027c238375e
16b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===--- SemaDeclAttr.cpp - Declaration Attribute Handling ----------------===// 26b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 36b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// The LLVM Compiler Infrastructure 46b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 56b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file is distributed under the University of Illinois Open Source 66b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// License. See LICENSE.TXT for details. 76b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 86b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 96b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file implements decl-related attribute processing. 116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 1582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov#include "TargetAttributesSema.h" 166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 17384aff8b94bb0d1ad6c5667b90621e5699815bb2John McCall#include "clang/AST/DeclCXX.h" 18b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski#include "clang/AST/DeclTemplate.h" 19acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 20acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 21f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Basic/SourceManager.h" 22fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2319510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 249c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 25fe98da0fa352462c02db037360788748f95466f7John McCall#include "clang/Sema/Lookup.h" 26797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 289c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 30883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 31883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 32b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskienum AttributeDeclKind { 33883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 43db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedVariableFunctionOrLabel, 44f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor ExpectedFieldOrGlobalVar, 45f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor ExpectedStruct 46883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 47883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 48e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 49e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 51e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 5287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic const FunctionType *getFunctionType(const Decl *D, 53a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 5587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) 566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5787c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) 586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5987c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 63bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 656217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 66755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 68d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 69183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 75d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 76a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 7787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunction(const Decl *D) { 7887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return getFunctionType(D, false) != NULL; 79a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 80a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 81a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 83d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 8487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethod(const Decl *D) { 8587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isFunction(D)|| isa<ObjCMethodDecl>(D); 86d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 873568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 88620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 89620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 90620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 9187c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodOrBlock(const Decl *D) { 9287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethod(D)) 93620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 94620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 9587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 97620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 98620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 9987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<BlockDecl>(D); 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 101620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 10487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasDeclarator(const Decl *D) { 105f85e193739c953358c865005855253af4f68a497John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 10687c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || 10787c44604325578b8de07d768391c1c9432404f5aChandler Carruth isa<ObjCPropertyDecl>(D); 108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 110d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 111d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 112620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 11387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasFunctionProto(const Decl *D) { 11487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 11572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 116620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 11787c44604325578b8de07d768391c1c9432404f5aChandler Carruth assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); 118d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 119d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1203568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1213568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 122d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 123d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 124d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 12587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic unsigned getFunctionOrMethodNumArgs(const Decl *D) { 12687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 12772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 12887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 129d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 13087c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_size(); 1313568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1323568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { 13487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 13687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 137d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); 1403568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1413568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 14287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodResultType(const Decl *D) { 14387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 1445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 14587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->getResultType(); 1465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 14887c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodVariadic(const Decl *D) { 14987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) { 15072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 15287c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 153db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 154d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 15587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->isVariadic(); 1563568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1573568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1583568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 15987c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isInstanceMethod(const Decl *D) { 16087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) 16107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 166183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 167b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 169bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 170506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 171506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 174506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 175bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 181085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 184085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1866217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 187085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 188085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 189bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 191465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 193085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 195085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 196085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 197b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has exactly as many args as Num. May 198b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 1991731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruthstatic bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, 2001731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth unsigned int Num) { 2011731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (Attr.getNumArgs() != Num) { 2021731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; 2031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return false; 2041731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth } 2051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return true; 2071731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth} 2081731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 209db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 210b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has at least as many args as Num. May 211b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 212b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, 213b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int Num) { 214b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (Attr.getNumArgs() < Num) { 215db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; 216db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return false; 217db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 218db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 219db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return true; 220db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 221db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 222db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski/// 223fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a field or potentially shared global var 224fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a field or potentially shared global variable 225fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 22639997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool mayBeSharedVariable(const Decl *D) { 227fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (isa<FieldDecl>(D)) 228fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 22939997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const VarDecl *vd = dyn_cast<VarDecl>(D)) 230fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); 231fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 232fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 233fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 234fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 235b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the passed-in expression is of type int or bool. 236b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool isIntOrBool(Expr *Exp) { 237b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = Exp->getType(); 238b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return QT->isBooleanType() || QT->isIntegerType(); 239b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 240b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 241fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 242fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a pointer type. 243fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// Note that this function may produce an error message. 244fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a pointer type; false otherwise 245fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 24639997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool checkIsPointer(Sema &S, const Decl *D, const AttributeList &Attr) { 24739997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { 248fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski QualType QT = vd->getType(); 24939997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (QT->isAnyPointerType()) 250fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 251fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_pointer_attribute_wrong_type) 252fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName()->getName() << QT; 253fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } else { 254fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) 255fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName(); 256fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 257fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 258fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 259fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 260b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Checks that the passed in QualType either is of RecordType or points 261b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// to RecordType. Returns the relevant RecordType, null if it does not exit. 2627d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramerstatic const RecordType *getRecordType(QualType QT) { 2637d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const RecordType *RT = QT->getAs<RecordType>()) 264b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return RT; 2657d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2667d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer // Now check if we point to record type. 2677d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const PointerType *PT = QT->getAs<PointerType>()) 2687d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return PT->getPointeeType()->getAs<RecordType>(); 2697d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2707d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return 0; 271b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 272b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 2733ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \brief Thread Safety Analysis: Checks that the passed in RecordType 2743ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// resolves to a lockable object. May flag an error. 27583cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchinsstatic void checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, 27683cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins QualType Ty) { 27783cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins const RecordType *RT = getRecordType(Ty); 27883cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins 27983cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins // Warn if could not get record type for this argument. 280d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT) { 28183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_attribute_argument_not_class) 28283cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins << Attr.getName() << Ty.getAsString(); 28383cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 2843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 285634b2930f5a8fc4b153437657ce786ca3fba5b1eDeLesley Hutchins // Don't check for lockable if the class hasn't been defined yet. 286634b2930f5a8fc4b153437657ce786ca3fba5b1eDeLesley Hutchins if (RT->isIncompleteType()) 28783cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 28883cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins // Warn if the type is not lockable. 289d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT->getDecl()->getAttr<LockableAttr>()) { 29083cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_attribute_argument_not_lockable) 29183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins << Attr.getName() << Ty.getAsString(); 29283cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 2933ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 2943ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski} 2953ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 296b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Thread Safety Analysis: Checks that all attribute arguments, starting 297b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// from Sidx, resolve to a lockable object. May flag an error. 2983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param Sidx The attribute argument index to start checking with. 2993ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param ParamIdxOk Whether an argument can be indexing into a function 3003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// parameter list. 3013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowskistatic bool checkAttrArgsAreLockableObjs(Sema &S, Decl *D, 3023ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const AttributeList &Attr, 3033ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVectorImpl<Expr*> &Args, 304b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski int Sidx = 0, 305b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool ParamIdxOk = false) { 3063ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { 307b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski Expr *ArgExp = Attr.getArg(Idx); 3083ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 309ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski if (ArgExp->isTypeDependent()) { 310ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski // FIXME -- need to processs this again on template instantiation 311ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski Args.push_back(ArgExp); 312ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski continue; 313ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski } 314b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski QualType ArgTy = ArgExp->getType(); 316b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3173ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // First see if we can just cast to record type, or point to record type. 3183ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const RecordType *RT = getRecordType(ArgTy); 319b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3203ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Now check if we index into a record type function param. 3213ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!RT && ParamIdxOk) { 3223ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 323b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); 324b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if(FD && IL) { 325b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int NumParams = FD->getNumParams(); 326b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski llvm::APInt ArgValue = IL->getValue(); 3273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); 3283ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; 3293ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { 330b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) 331b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << Idx + 1 << NumParams; 332b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return false; 333b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 3343ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); 335b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 336b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 337b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 33883cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins checkForLockableRecord(S, D, Attr, ArgTy); 339b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3403ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Args.push_back(ArgExp); 341b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 342b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return true; 343b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 344b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 345e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 346e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 347e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 348e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 3493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 3503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 3513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 3523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 353fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, 354fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool pointer = false) { 355fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 356fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 357fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 358fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 359fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 360fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 361fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!mayBeSharedVariable(D)) { 362fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 363b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 364fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 365fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 366fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 367fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer && !checkIsPointer(S, D, Attr)) 368fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 369fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 370fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer) 371768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); 372fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 373768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); 374fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 375fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 376db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, 377b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool pointer = false) { 378db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 379db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 380b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 381db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 382db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 3833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 3843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 385db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 386db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (!mayBeSharedVariable(D)) { 387db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 388b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 389db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 390db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 391db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 392db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer && !checkIsPointer(S, D, Attr)) 393db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 394db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 3957b9ff0c09025dcbe48ec7db71330e2066d1e1863DeLesley Hutchins if (!Arg->isTypeDependent()) { 39683cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins checkForLockableRecord(S, D, Attr, Arg->getType()); 3977b9ff0c09025dcbe48ec7db71330e2066d1e1863DeLesley Hutchins } 398b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 399db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer) 400768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), 4013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, Arg)); 402db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 403768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); 404db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 405db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 406db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 407fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, 408fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool scoped = false) { 409fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 410fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 411fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 412fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 413fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 4141748b1256646cf0752f172c53ad7482f7beed185Caitlin Sadowski // FIXME: Lockable structs for C code. 415fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!isa<CXXRecordDecl>(D)) { 416fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 417fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedClass; 418fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 419fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 420fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 421fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (scoped) 422768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); 423fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 424768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); 425fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 426fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 427fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleNoThreadSafetyAttr(Sema &S, Decl *D, 428fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski const AttributeList &Attr) { 429fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 430fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 431fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 432fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 433fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 434b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 435fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 436fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 437fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 438fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 439fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 440768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), 441fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Context)); 442fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 443fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 44471efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryanystatic void handleNoAddressSafetyAttr(Sema &S, Decl *D, 44571efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany const AttributeList &Attr) { 44671efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany assert(!Attr.isInvalid()); 44771efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 44871efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany if (!checkAttributeNumArgs(S, Attr, 0)) 44971efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany return; 45071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 45171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 45271efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 45371efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany << Attr.getName() << ExpectedFunctionOrMethod; 45471efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany return; 45571efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany } 45671efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 45771efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany D->addAttr(::new (S.Context) NoAddressSafetyAnalysisAttr(Attr.getRange(), 45871efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany S.Context)); 45971efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany} 46071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 461db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, 462db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski bool before) { 463db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 464db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 465b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 466db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 467db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 468db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 469b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski ValueDecl *VD = dyn_cast<ValueDecl>(D); 470b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!VD || !mayBeSharedVariable(D)) { 471db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 472b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 473db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 474db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 475db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 476b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // Check that this attribute only applies to lockable types 477b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = VD->getType(); 478b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!QT->isDependentType()) { 479b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const RecordType *RT = getRecordType(QT); 480b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { 48183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_attribute_decl_not_lockable) 482b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 483b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 484b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 485b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 486b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4873ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 488b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 4893ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 490b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 491b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4923ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 4933ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 4943ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 4953ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 496db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (before) 497768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, 4983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 499db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 500768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, 5013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 502db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 503db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 504db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 505b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 506db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 507db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 508db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 509db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 510b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that the attribute is applied to a function 511b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 512db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 513db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 514db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 515db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 516db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 517b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5183ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 5193ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) 520b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 521b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5223ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5233ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 5243ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5253ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 526db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 527768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), 5283ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5293ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 530db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 531768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), 5323ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5333ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 534db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 535db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 536db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 537b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 538db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 539db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 540b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 541db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 542db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 543b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 544b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 545db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 546db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 547db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 548db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 549db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 550b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isIntOrBool(Attr.getArg(0))) { 551b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) 552b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 553b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 554b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 555b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5563ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 2> Args; 557b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5583ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1)) 559b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 560b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5613ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5623ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 564db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 565768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), 5663ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, 56769f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 5683ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 569db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 570768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), 57169f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski S.Context, 57269f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 57369f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski StartArg, Size)); 574db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 575db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 576db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, 577b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 578db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 579db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 580b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 581db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 582db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 583b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 584db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 585db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 586db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 587db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 588db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 589b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5903ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 5913ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 592b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 593b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5943ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5953ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 5963ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5973ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 598db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 599768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), 6003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 6013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 602db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 603768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), 6043ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 6053ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 606db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 607db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 608db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleUnlockFunAttr(Sema &S, Decl *D, 609b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 610db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 611db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 612db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 613db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 614b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 615db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 616db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 617db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 618db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 619db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 620b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6213ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 6223ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) 623b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 624b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6253ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6263ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 6273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6283ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 629768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, 6303ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 631db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 632db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 633db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockReturnedAttr(Sema &S, Decl *D, 634b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 635db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 636db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 637b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 638db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 6393ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 640db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 641b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 642db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 643db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 644db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 645db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 646db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6473ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 648b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 649b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6503ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 65183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins checkForLockableRecord(S, D, Attr, Arg->getType()); 6523ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 653768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, Arg)); 654db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 655db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 656db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksExcludedAttr(Sema &S, Decl *D, 657b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 658db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 659db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 660b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 661db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 662db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 663b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 664db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 665db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 666db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 667db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 668db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 669b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6703ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 6713ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 672b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 673b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6743ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6753ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 6763ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6773ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 678768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, 6793ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 680db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 681db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 682db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, 6841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 68587c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); 686545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 687803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 688545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 6896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 690bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 6929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6939cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 6949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 6969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 697f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 698e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 699f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 700f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 7014ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 702e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(scope, SS, TemplateKWLoc, id, 703e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, false); 7044ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 7054ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 7064ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 7074ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 7089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 7099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 7101731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 7119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 7121731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 7137a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 7146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 7179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 7189ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 7199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 720ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 721a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 722bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 7249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 7256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 7296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 7301731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 7316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 732bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 73387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 734768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 73587c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { 7366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 7376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 7386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 739803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 740fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 74108631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 7426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 743768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 7446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 7453c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 7466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7481b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { 74987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 750768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); 751c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian else 752c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 753c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian} 754c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian 7551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { 75696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 7571731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 75896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 759bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 76063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 76187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 76263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 763768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); 76463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 76563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 76663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7674ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 76863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 76963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7702f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenekstatic bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { 7712f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // The IBOutlet/IBOutletCollection attributes only apply to instance 7722f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // variables or properties of Objective-C classes. The outlet must also 7732f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // have an object reference type. 7742f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { 7752f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 7760bfaf067c294bc4064c2f1aee0bc1c51e861ac65Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) 7772f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << VD->getType() << 0; 7782f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 7792f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7802f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7812f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { 7822f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 783f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) 7842f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << PD->getType() << 1; 7852f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 7862f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7872f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7882f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else { 7892f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 7902f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 7912f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 792f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor 7932f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return true; 7942f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek} 7952f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 7961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { 79763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 7981731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 79963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 8002f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 8012f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 80263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 80363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 8042f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); 80596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 80696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 8071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutletCollection(Sema &S, Decl *D, 8081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 809857e918a8a40deb128840308a318bf623d68295fTed Kremenek 810857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 811a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 812857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 813857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 814857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 815857e918a8a40deb128840308a318bf623d68295fTed Kremenek 8162f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 817857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 8182f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 819a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 820a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 821f4072ae44b70a7ac234c47c146157fee75437e38Fariborz Jahanian II = &S.Context.Idents.get("NSObject"); 8223a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 823b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 82487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.getScopeForContext(D->getDeclContext()->getParent())); 825a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 826a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 827a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 828a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 829b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 830a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 831a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 832a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 833a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 834f4072ae44b70a7ac234c47c146157fee75437e38Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCObjectType()) { 835a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 836a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 837a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 838f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, 839f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis QT, Attr.getParameterLoc())); 840857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 841857e918a8a40deb128840308a318bf623d68295fTed Kremenek 842d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruthstatic void possibleTransparentUnionPointerType(QualType &T) { 84368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (const RecordType *UT = T->getAsUnionType()) 84468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 84568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 84668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 84768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 84868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian QualType QT = it->getType(); 84968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (QT->isAnyPointerType() || QT->isBlockPointerType()) { 85068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian T = QT; 85168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian return; 85268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 85368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 85468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 85568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian} 85668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 8571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { 858bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 859bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 86087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 861fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 862883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 863eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 864eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 865bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 86607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 86707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 86887c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 86987c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 870eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 871eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 8725f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> NonNullArgs; 873bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 874eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 875eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 876bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 877bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 878eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 8797a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 880eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 881ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 882ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 883fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 884fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 885eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 886eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 887bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 888eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 889bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 890eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 891fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 89230bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 893eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 894eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 895bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 896465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 89707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 89807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 89907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 90007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 90107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 90207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 90307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 90407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 90507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 906eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 907eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 90887c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 909d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 91068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 911dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 912eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 913c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 914fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 9157fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 916eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 917bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 918eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 919eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 920bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 921bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 922bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 9237fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 92487c44604325578b8de07d768391c1c9432404f5aChandler Carruth for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { 92587c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); 926d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 927dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 928d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 92946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 930bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 931ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 93260acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 93360acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 93460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 93560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 93660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 9377fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 93860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 939eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 9407fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 9417fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 9427fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 943dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 944768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, 945cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 946eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 947eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 9481b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { 949dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 950dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 951dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 952dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 953dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 954dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 9552a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 9562a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 957dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 958dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 959dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 960dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 961dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 962dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 963dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 964cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 9652a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 9662a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 967cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 968dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 969dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 970dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 971dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9722a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9732a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 974cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 975dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 976dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 977dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 978dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9792a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9802a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 981cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 982dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 983dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 984dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 985dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 986dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9872a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9882a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 9892a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 9902a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 991dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 992dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 99387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunction(D) || !hasFunctionProto(D)) { 994883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 995883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 996dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 997dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 998dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 99907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 100007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 100187c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 100287c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 1003dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10045f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Module = AL.getParameterName()->getName(); 1005dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1006dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 1007dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 1008dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 1009dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10105f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> OwnershipArgs; 1011dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10122a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 10132a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 1014dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10157a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 1016dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1017dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1018dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1019dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 1020dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 1021dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1022dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1023dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1024dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 1025dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1026dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 1027dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 1028dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 1029dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1030dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1031dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 103207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 103307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 103407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 103507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 103607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 103707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 103807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 103907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 104007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1041dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 1042cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 1043cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 1044dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 104587c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x); 1046dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 1047dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 1048dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1049cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 1050dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 1051dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1052dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1053dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1054dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1055dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1056cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 1057dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1058dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 10597a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 1060dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1061dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1062dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1063dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1064dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 1065dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1066dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1067dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1068dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1069dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1070dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1071dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 1072dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1073dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 1074cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 107587c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<OwnershipAttr>(), 107687c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<OwnershipAttr>(); 1077cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 1078cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 1079cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 1080cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 1081cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 1082cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 1083cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 1084dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1085dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1086dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1087dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1088dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 1089dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1090dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1091dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 1092dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 1093dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 1094cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1095cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 1096cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1097cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 1098dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1099cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 110087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 1101cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 1102dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 1103dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1104332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 1105332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 1106332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 1107332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 1108332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 1109332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 1110332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1111332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1112332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 1113332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 1114332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 1115332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1116332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1117332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 1118332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 1119332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1120332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 112111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 112211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { 112411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 112511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 112611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 112711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 112811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 112911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 113087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 1131332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1132883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1133332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 1134332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1135332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 113687c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1137332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 113811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 113911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 114011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 114111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 114211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 114311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 114411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 114511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 114611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 114711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 114887c44604325578b8de07d768391c1c9432404f5aChandler Carruth const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); 11497a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 11507a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 1151332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 11527a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 115311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 115411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 115511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 115611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 115711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 115811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 115911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 116011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 116111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 116211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 116311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 116411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 116511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 116611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 116711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 116811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 116911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 117011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 117111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 117211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1173332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 1174332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 117511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 117611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 117711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 117811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 117911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 118011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 118111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 118211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 11837a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 118411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 118511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 118611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11875cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 118811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 118911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 119011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 119111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 119211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 119311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 1194768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1195f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 119611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 119711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1198768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); 119911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 120011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 12011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 12026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1203545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 12043c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1207bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12087a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 12096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 12106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1211bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12125cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1213fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 12143c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 12156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1217bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1218bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { 1219f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 1220f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 1221f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 1222f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 12236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 1224bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1225768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1226f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 12276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1230dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 12311731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1232dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1233dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 123487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1235dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1236883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 1237dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1238dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 1239dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 1240768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); 1241dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 1242dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 12431b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlwaysInlineAttr(Sema &S, Decl *D, 12441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1245dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1246831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 12473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1248af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 1249af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 12505bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 125187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 12525bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1253883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 12545bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 12555bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1256bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1257768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); 1258af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 1259af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 12601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1261dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1262831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 126376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 126476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 126576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 12661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 12692cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 1270768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); 12712cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 12722cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 1273fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 1274fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 12752cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 127676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 127776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 12781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 127934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 12801731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 128134c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 128234c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 1283768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); 128434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 128534c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 12861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 128756aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 128887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1289768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); 1290722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1291722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1292883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1293a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1294a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 12951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 129656aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 129787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1298768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); 1299722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1300722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1301883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1302a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1303a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 13041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { 130587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 1306711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 1308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 130987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 1310711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1311883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 1312711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 1313711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1314711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1315768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); 1316711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 1317711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1318711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 1319831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (attr.hasParameterOrArguments()) { 1320711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1321711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 1322711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 1323711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1324711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1325711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 1326b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 1327b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, 13291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1330b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1331b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 1332b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 1333b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13341731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 0)) 13351731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return; 1336b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 133787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { 133887c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *VD = dyn_cast<ValueDecl>(D); 13393ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 13403ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 1341e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 1342e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 1343b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 1344883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1345b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 134619c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 13476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1348b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1349768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); 13506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 135235cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 13531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { 135435cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 135535cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 135635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 1357f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 1358f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 1359f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 1360f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 1361f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 136235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 136335cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 136435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 136535cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 136635cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 136735cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 136835cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 136935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 137035cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 137135cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 137235cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 137335cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 137435cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 137535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 137635cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 137787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<RecordDecl>(D)) { 137835cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1379883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 138035cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 138135cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 138235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 138387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (D->getAttr<VecReturnAttr>()) { 138435cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 138535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 138635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 138735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 138887c44604325578b8de07d768391c1c9432404f5aChandler Carruth RecordDecl *record = cast<RecordDecl>(D); 138901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 139001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 139101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 139201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 139301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 139401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 139501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 139601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 139701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 139801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 139901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 140001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1401f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 1402f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 140301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 140401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 140501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 140601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 140701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 140801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 140901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1410768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); 141135cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 141235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 14131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { 141487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { 1415bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1416883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 1417bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1418bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 1419bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 1420bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 1421bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 14221b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 142373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 1424831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 14253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 142673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 142773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1428bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 142987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && 143087c44604325578b8de07d768391c1c9432404f5aChandler Carruth !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { 1431fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1432883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 143373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 143473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1435bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1436768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); 143773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 143873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 1439f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindolastatic void handleReturnsTwiceAttr(Sema &S, Decl *D, 1440f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola const AttributeList &Attr) { 1441f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola // check the attribute arguments. 1442f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (Attr.hasParameterOrArguments()) { 1443f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1444f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1445f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1446f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1447f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (!isa<FunctionDecl>(D)) { 1448f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1449f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola << Attr.getName() << ExpectedFunction; 1450f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1451f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1452f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1453f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); 1454f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola} 1455f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 14561b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1457b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 1458831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 1459b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1460b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1461b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1462bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 146387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 1464186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 1465b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 1466b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1467b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 146887c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (!isFunctionOrMethod(D)) { 1469b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1470883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1471b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1472b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1473bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1474768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); 1475b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 1476b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 14771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1479bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1480bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 14813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1482bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 14843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 14853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 14867a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 14873068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1488ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1489ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1490fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 14913c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 14923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 14953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1496bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 149787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1498fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1499883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1503768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, 1504f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 15053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 15063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 15083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1509bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1510bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 15113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1512bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 15153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 15167a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 15173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1518ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1519ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1520fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 15223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 15253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1526bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 152787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1528fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1529883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1533768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, 1534f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 15353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 15363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1538951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1539951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1540bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1541c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1542c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1543951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1544c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 15455f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1546951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1547951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1548c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1549951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1550951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1551c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1552c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1553951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 15546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1555bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1556768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); 15576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1560951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1561951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1562bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1563bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1564bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1565951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1566c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 15675f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1568951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1569951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1570c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1571951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1572c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1573c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1574c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1575951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1576c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1577768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); 1578bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1579bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1580742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanianstatic void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, 1581742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian const AttributeList &Attr) { 1582742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1583742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (NumArgs > 0) { 1584742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1585742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian return; 1586742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 1587742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1588742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( 1589768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis Attr.getRange(), S.Context)); 1590742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian} 1591742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1592b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beardstatic void handleObjCRootClassAttr(Sema &S, Decl *D, 1593b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard const AttributeList &Attr) { 1594b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard if (!isa<ObjCInterfaceDecl>(D)) { 1595b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 1596b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard return; 1597b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard } 1598b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 1599b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard unsigned NumArgs = Attr.getNumArgs(); 1600b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard if (NumArgs > 0) { 1601b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1602b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard return; 1603b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard } 1604b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 1605b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard D->addAttr(::new (S.Context) ObjCRootClassAttr(Attr.getRange(), S.Context)); 1606b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard} 1607b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 160871207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenekstatic void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, 1609e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian const AttributeList &Attr) { 1610341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian if (!isa<ObjCInterfaceDecl>(D)) { 1611341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis); 1612341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian return; 1613341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian } 1614341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian 1615e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1616e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian if (NumArgs > 0) { 1617e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1618e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian return; 1619e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian } 1620e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian 162171207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek D->addAttr(::new (S.Context) ObjCRequiresPropertyDefsAttr( 1622e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian Attr.getRange(), S.Context)); 1623e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian} 1624e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian 16251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAvailabilityAttr(Sema &S, Decl *D, 16261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 16270a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor IdentifierInfo *Platform = Attr.getParameterName(); 16280a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor SourceLocation PlatformLoc = Attr.getParameterLoc(); 16290a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16305f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef PlatformName 16310a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 16320a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (PlatformName.empty()) { 16330a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 16340a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << Platform; 16350a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16360a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 16370a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16380a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16390a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 16400a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 16410a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 1642b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor bool IsUnavailable = Attr.getUnavailableLoc().isValid(); 16430a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1644c90df6a0ad61041e976e0136c29e6d57b17cba3dDouglas Gregor // Ensure that Introduced <= Deprecated <= Obsoleted (although not all 16450a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 16460a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Deprecated.isValid() && 16473b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Deprecated.Version)) { 16480a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 16490a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << PlatformName << Deprecated.Version.getAsString() 16500a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 16510a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16520a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16530a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16540a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Obsoleted.isValid() && 16553b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Obsoleted.Version)) { 16560a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 16570a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16580a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 16590a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16600a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16610a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16620a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Deprecated.isValid() && Obsoleted.isValid() && 16633b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Deprecated.Version <= Obsoleted.Version)) { 16640a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) 16650a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16660a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << Deprecated.Version.getAsString(); 16670a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16680a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16690a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1670006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian StringRef Str; 1671006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian const StringLiteral *SE = 1672006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian dyn_cast_or_null<const StringLiteral>(Attr.getMessageExpr()); 1673006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian if (SE) 1674006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian Str = SE->getString(); 1675006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian 1676768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, 16770a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Platform, 16780a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Introduced.Version, 16790a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Deprecated.Version, 1680b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Obsoleted.Version, 1681006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian IsUnavailable, 1682006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian Str)); 16830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 16840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 16866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 16871731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 1)) 16886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1689bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16907a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 16916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 16926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1693bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16945cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1695fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 16963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 16976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1699bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17005f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef TypeStr = Str->getString(); 1701cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1702bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1703c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1704cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1705c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1706cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1707c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1708cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 17094188760f6bb20f91c6883dffd89204419f852deeJohn McCall else if (TypeStr == "protected") { 17104188760f6bb20f91c6883dffd89204419f852deeJohn McCall // Complain about attempts to use protected visibility on targets 17114188760f6bb20f91c6883dffd89204419f852deeJohn McCall // (like Darwin) that don't support it. 17124188760f6bb20f91c6883dffd89204419f852deeJohn McCall if (!S.Context.getTargetInfo().hasProtectedVisibility()) { 17134188760f6bb20f91c6883dffd89204419f852deeJohn McCall S.Diag(Attr.getLoc(), diag::warn_attribute_protected_visibility); 17144188760f6bb20f91c6883dffd89204419f852deeJohn McCall type = VisibilityAttr::Default; 17154188760f6bb20f91c6883dffd89204419f852deeJohn McCall } else { 17164188760f6bb20f91c6883dffd89204419f852deeJohn McCall type = VisibilityAttr::Protected; 17174188760f6bb20f91c6883dffd89204419f852deeJohn McCall } 17184188760f6bb20f91c6883dffd89204419f852deeJohn McCall } else { 171908631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 17206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1722bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1723768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); 17246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 17256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, 17271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1728d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1729d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 173087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1731883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1732d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1733d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1734d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 173587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { 173687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { 173787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1738d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1739d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 174087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1741d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 174287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 1743d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1744d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1745d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 17465f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef param = Attr.getParameterName()->getName(); 1747d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1748d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1749d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1750d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1751d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1752d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1753d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1754d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1755d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1756d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1757d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1758d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1759d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1760d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1761d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1762d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 176387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); 1764d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1765d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1766d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1767f85e193739c953358c865005855253af4f68a497John McCall if (family == ObjCMethodFamilyAttr::OMF_init && 1768f85e193739c953358c865005855253af4f68a497John McCall !method->getResultType()->isObjCObjectPointerType()) { 1769f85e193739c953358c865005855253af4f68a497John McCall S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) 1770f85e193739c953358c865005855253af4f68a497John McCall << method->getResultType(); 1771f85e193739c953358c865005855253af4f68a497John McCall // Ignore the attribute. 1772f85e193739c953358c865005855253af4f68a497John McCall return; 1773f85e193739c953358c865005855253af4f68a497John McCall } 1774f85e193739c953358c865005855253af4f68a497John McCall 1775768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), 1776f85e193739c953358c865005855253af4f68a497John McCall S.Context, family)); 1777d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1778d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 17791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCExceptionAttr(Sema &S, Decl *D, 17801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 17811731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 17820db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 1783bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17840db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 17850db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 17860db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 17870db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 17880db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1789bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1790768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); 17910db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 17920db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 17931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { 1794fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 17952b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1796fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1797fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1798162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 1799fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1800fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 18016217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1802fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1803fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1804fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1805fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1806f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek else if (!isa<ObjCPropertyDecl>(D)) { 1807f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // It is okay to include this attribute on properties, e.g.: 1808f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // 1809f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // @property (retain, nonatomic) struct Bork *Q __attribute__((NSObject)); 1810f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // 1811f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // In this case it follows tradition and suppresses an error in the above 1812f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // case. 18139b2eb7b1a1bdd1fe4acb200b448312ef407283dfFariborz Jahanian S.Diag(D->getLocation(), diag::warn_nsobject_attribute); 1814f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek } 1815768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); 1816fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1817fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1818bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 18191b03c8719e2e45cf2769430335d7e71f18e6634aChandler CarruthhandleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1820f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 18212b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1822f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1823f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1824f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1825f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1826f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1827f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1828f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1829f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1830768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); 1831f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1832f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 18331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1834bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1835fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 18363c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 18379eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 18389eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1839bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18409eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 18413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 18429eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 18439eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1844bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1845cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 184692e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 18479eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 18489eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1849fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 18503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 18519eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 18529eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1853bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1854768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); 18559eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 18569eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 18571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1858770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1859770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1860bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1861770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1862bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1863bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18643323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned sentinel = 0; 1865770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 18667a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1867770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1868ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1869ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1870fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1872770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1873770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1874bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18753323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if (Idx.isSigned() && Idx.isNegative()) { 1876fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1877fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1878770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1879770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 18803323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall 18813323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall sentinel = Idx.getZExtValue(); 1882770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1883770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 18843323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned nullPos = 0; 1885770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 18867a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1887770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1888ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1889ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1890fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18913c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1892770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1893770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1894770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1895bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18963323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { 1897770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1898770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1899fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1900fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1901770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1902770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1903770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1904770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 190587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 19063323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall const FunctionType *FT = FD->getType()->castAs<FunctionType>(); 1907897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1908897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1909897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1910897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1911bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1912897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 19133bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1914770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1915bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 191687c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 1917770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 19183bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1919770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 19202f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1921a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman } else if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) { 1922a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman if (!BD->isVariadic()) { 1923a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 1; 1924a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman return; 1925a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman } 192687c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 19272f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1928daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 192987c44604325578b8de07d768391c1c9432404f5aChandler Carruth const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) 1930f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 19312f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 19323bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 19333bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 19342f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 19352f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1936ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 19372f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1938883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 19392f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 19402f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1941770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1942fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1943883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1944770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1945770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1946768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, 1947f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1948770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1949770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 19501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { 1951026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 19521731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1953026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1954026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1955f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1956026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1957883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1958026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1959026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1960bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1961f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1962f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1963f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1964f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1965f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1966f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1967f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1968f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1969f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1970f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1971f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1972f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1973768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); 1974026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1975026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 19761b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { 19776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 197887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.hasParameterOrArguments()) { 197987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19826e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 198387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 198413c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian if (isa<CXXRecordDecl>(D)) { 198513c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian D->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 198613c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian return; 198713c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian } 198887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 198987c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedVariableOrFunction; 1990f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1991f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1992f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 199387c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1994332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1995332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 1996332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 199787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); 19986e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19996e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 2000bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2001768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 20026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 20036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20056e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 20061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 20076e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 20081731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 20096e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 20106e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 20116e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 20120a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 20130a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 20140a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 20150a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 20160a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 2017def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || 2018bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor (S.Context.getTargetInfo().getTriple().isOSDarwin() && 201990eed219f4215adf300800ab7478f568c7a4b2a3Fariborz Jahanian (isa<ObjCInterfaceDecl>(D) || isa<EnumDecl>(D)))) { 2020def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor // Nothing to warn about here. 2021def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor } else 2022c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2023883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 20246e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 20256e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 20266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 20276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 2028768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); 20296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 20306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 20311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleReqdWorkGroupSize(Sema &S, Decl *D, 20321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 20336f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 20341731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 3)) 20356f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 20366f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 20376f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 20386f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 20397a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 20406f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 2041ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 2042ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 20436f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 20446f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 20456f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 20466f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 20476f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 20486f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 2049768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, 2050cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 20516f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 20526f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 20536f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 20541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { 205517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 20561731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 205717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 205817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 205917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 206017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 20617a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2062797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 206317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 2064797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 206517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 206617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2068797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 2069bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); 2070a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 2071a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 2072a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 2073797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 2074797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 20751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2076a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 2077a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 2078a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 2079a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 2080a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 2081a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 2082768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, 2083f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 208417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 208517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 20866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2089831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 20903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2093b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 209487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { 2095b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2096ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2097b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2098768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); 2099b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 21006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 21016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 21021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2103232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 2104831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 21053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2106232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2107232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 2108bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 210987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { 2110b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2111ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2112b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2113768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); 2114b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2115232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2116232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 21171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2118232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 21191731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2120232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2121bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2122768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); 2123232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2124232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 21251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2126bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 2127f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2128f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2129f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2130bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2131f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 2132f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2133f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2134f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2135bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 213687c44604325578b8de07d768391c1c9432404f5aChandler Carruth VarDecl *VD = dyn_cast<VarDecl>(D); 2137bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2138f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 2139f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 2140f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2141f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2142bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2143f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 2144c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 2145f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 2146f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 2147f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 2148f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 2149f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 2150f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 2151f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2152f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2153bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2154f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 2155f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 2156f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2157f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 2158f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2159f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2160f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2161f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2162f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 2163f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2164f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 2165f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2166f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2167f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2168bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 216989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 217089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 217189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 217289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 2173b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 2174b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 2175f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 217689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 217789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 217889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 217989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 2180bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2181768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); 21825f2987c11491edb186401d4e8eced275f0ea7c5eEli Friedman S.MarkFunctionReferenced(Attr.getParameterLoc(), FD); 2183f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 2184f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2185bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 2186bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 21871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { 21881731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 21895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21901731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 219187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 21925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2193883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 21945b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 219607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 219707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 219807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 219987c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 220087c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 22015b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 220207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 22035b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 22047a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 22055b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 2206ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2207ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 22085b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 22095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 22105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 22115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2212bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 22145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 22155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 22165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 22175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2218bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 2220bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 222107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 222207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 222307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 222407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 222507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 222607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 222707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 222807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 222907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 22305b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 223187c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 2232bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 22345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 22355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 22365b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 22376217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 22385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 22395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2240bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 22415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 22425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2243bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 224487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Ty = getFunctionOrMethodResultType(D); 22455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 22465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 22475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 22486217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 22495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 22505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 2251bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 22525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 22535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2254bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 2255bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2256768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, 225707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 22585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 22595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 22602b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 22612b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 22622b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 22632b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 22642b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 22653c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 22662b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 22672b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 22682b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 22692b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 22702b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 22715f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic FormatAttrKind getFormatAttrKind(StringRef Format) { 22722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 22732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 22742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 22752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 22762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 22772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 22782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 22792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 22802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 22812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 228269d53845c68a4f01920b58ba6ce507d78220689cJean-Daniel Dupas Format == "strfmon" || Format == "cmn_err" || Format == "vcmn_err" || 2283cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 2284cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 22852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 22862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2287bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 2288bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 22893c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 22903c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 22912b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 22922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 22932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2294521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 2295521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 22961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleInitPriorityAttr(Sema &S, Decl *D, 22971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 22984e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().CPlusPlus) { 2299521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2300521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2301521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2302521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 230387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { 2304b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2305b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2306b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2307b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 230887c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = dyn_cast<VarDecl>(D)->getType(); 2309b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 2310b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 2311b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 2312b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2313b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2314b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2315b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 2316b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2317521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 2318521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2319521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2320521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2321521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 23227a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 2323b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2324521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 2325521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 2326521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 2327521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 2328521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 2329521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2330521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2331521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 23329f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 2333521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 2334521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 2335521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 2336521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2337521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2338521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2339768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, 2340f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 2341521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 2342521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 2343bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 2344bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 23451b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { 23466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2347545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 2348fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 23493c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 23506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2353545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 23543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 23556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 235887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { 2359fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2360883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 23616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 236407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 236507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 236687c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 236787c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 23686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 23696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23705f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Format = Attr.getParameterName()->getName(); 23716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 23732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 23742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 23752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 23762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 23772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 23783c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 23793c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 23803c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 23813c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 23822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 2383fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 238401eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 23856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 23897a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 2390803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 2391ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2392ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 2393fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23943c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 23956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 2399fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 24003c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 24016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 24056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 2406bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24074a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 24084a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 240907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 241007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 241107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 24124a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 24134a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 24144a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 24154a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 24161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 241887c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 24196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24202b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 2421085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 2422fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2423fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 2424085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 2425085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 24262b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 2427390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 2428390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 2429803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 2430390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2431fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2432fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 24336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2434bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 24356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 24366217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 2437390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2438fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2439fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 24406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 24447a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 2445803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 2446ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 2447ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 2448fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 24493c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 24506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 24546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 245587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethodVariadic(D)) { 24566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 24576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 245887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); 24596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24633c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 24643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 24652b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 24666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 2467fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 2468fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 24696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 24726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 2473fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 24743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 24756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2478b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // Check whether we already have an equivalent format attribute. 2479b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor for (specific_attr_iterator<FormatAttr> 248087c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<FormatAttr>(), 248187c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<FormatAttr>(); 2482b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor i != e ; ++i) { 2483b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor FormatAttr *f = *i; 2484b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getType() == Format && 2485b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFormatIdx() == (int)Idx.getZExtValue() && 2486b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFirstArg() == (int)FirstArg.getZExtValue()) { 2487b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // If we don't have a valid location for this attribute, adopt the 2488b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // location. 2489b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getLocation().isInvalid()) 2490ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis f->setRange(Attr.getRange()); 2491b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor return; 2492b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2493b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2494b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 2495768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, 2496cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 24972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 24986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleTransparentUnionAttr(Sema &S, Decl *D, 25011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 25026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 25031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 25046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 25066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 25080c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 250987c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); 25100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 25110c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 25120c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 251387c44604325578b8de07d768391c1c9432404f5aChandler Carruth RD = dyn_cast<RecordDecl>(D); 25140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 25150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 2516fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2517883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 25186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 25206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25215e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (!RD->isCompleteDefinition()) { 2522bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 25230c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 25240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 25250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 25260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 252717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 252817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 25290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 25300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 25310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 25320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2533bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 25340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 25350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 253690cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 2537bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 253890cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 253990cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 25400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 25410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2542bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 25430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 25440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 25450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 25460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 25470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 25480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 25490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 25500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 2551bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 25520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 2553bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 25540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 25550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 25560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 2557bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 25580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 25590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 2560bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 2561bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 2562bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 25636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2564768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); 25656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 25666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25671b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { 25686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 25691731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 25706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25711731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 25727a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2573797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 2574bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 25766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 25776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 2578797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 25796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 258177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 258277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Don't duplicate annotations that are already set. 258377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge for (specific_attr_iterator<AnnotateAttr> 258477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge i = D->specific_attr_begin<AnnotateAttr>(), 258577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { 258677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge if ((*i)->getAnnotation() == SE->getString()) 258777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge return; 258877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge } 2589768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, 2590f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 25916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 25926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 25946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2595545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 25963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 25976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2599bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2600bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 2601bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 2602bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 26036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2604545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 2605768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); 26064ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 26074ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 26084ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2609768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); 26104ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 26114ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2612768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { 26130b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne // FIXME: Handle pack-expansions here. 26140b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne if (DiagnoseUnexpandedParameterPack(E)) 26150b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne return; 26160b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne 26174ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 26184ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 2619768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); 26206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 26216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2622bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2623768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis SourceLocation AttrLoc = AttrRange.getBegin(); 2624cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 262549e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 2626282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ExprResult ICE = 2627282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith VerifyIntegerConstantExpression(E, &Alignment, 2628282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith PDiag(diag::err_attribute_argument_not_int) << "aligned", 2629282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /*AllowFold*/ false); 2630282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith if (ICE.isInvalid()) 263149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 2632396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 26334ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 26344ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 2635396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 2636396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 2637396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 2638282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, ICE.take())); 2639cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 2640cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 2641768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { 2642cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 2643cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 2644768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); 2645cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 26466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2647fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2648d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth/// handleModeAttr - This attribute modifies the width of a decl with primitive 2649bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 2650fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 2651bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2652bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2653bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 26541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2655fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2656fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2657fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2658fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 26591731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2660fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 26611731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2662fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2663fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2664fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 26650b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2666fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2667fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2668210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 26695f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str = Attr.getParameterName()->getName(); 2670fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2671fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2672210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2673210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2674fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2675fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2676fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 267773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2678210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2679fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 268073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 268173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 268273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 268373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 268473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 268573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 268673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 268773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 268873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 268973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 269073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 269173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 269273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 269373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 269473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 269573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2696fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2697fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2698fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2699fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2700210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 2701bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2702210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 2703bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getCharWidth(); 2704fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2705fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2706210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 2707bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2708fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2709fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2710fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2711fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2712162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) 2713fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2714fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2715fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2716fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2717fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2718768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << "mode" << Attr.getRange(); 2719fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2720fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 272173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2722183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 272373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 272473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 27252ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 272673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 272773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 272873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 272973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 273073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 273173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 273273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 273373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 273473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2735390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2736390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2737390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2738390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2739f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2740f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2741fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2742fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2743fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 27443c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2745fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2746fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 27473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2748fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2749fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 275073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 275173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 275273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 275373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2754fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 27550b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2756fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 27570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2758fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2759fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 276073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 276173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 276273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 276373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2764fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 27650b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2766fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 27670b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2768fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2769fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2770fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 27710b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2772fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 27730b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2774fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 27750b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2776fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2777fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2778fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 27790b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2780fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2781bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2782aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2783aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2784aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2785fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2786bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2787aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2788aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2789aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2790fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 279173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 279273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 279373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2794f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2795f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2796f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2797f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2798f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2799f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2800f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2801f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2802f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 280373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2804fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2805fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 280673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 280773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2808fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2809fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2810fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2811162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 2812ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2813a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2814ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2815fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2816fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 28170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 28181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2819d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 28201731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2821d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2822e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 282387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 2824d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2825883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2826d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2827d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2828bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2829768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); 2830d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2831d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 28321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 28335bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 28341731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 28355bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 28361731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2837bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 283887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 28395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2840883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 28415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 28425bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2843bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2844768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); 28455bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 28465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 28471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, 28481b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 28497255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 28501731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 28517255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 28521731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 28537255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 285487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 28557255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2856883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 28577255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 28587255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 28597255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2860768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), 2861f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 28627255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 28637255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 28641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2865ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2866ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2867831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 2868ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2869ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2870ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2871ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 287287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2873ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2874883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2875ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2876ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2877ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2878768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); 2879ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2880ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2881ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2882ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2883ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2885ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2886ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2887ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2888ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2889ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2890ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2891ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 289287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 2893ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2894883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2895ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2896ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2897ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2898768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); 2899ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2900ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2901ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2902ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2903ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2905ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2906ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 29071731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2908ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2909ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 291087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2911ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2912883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2913ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2914ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2915ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 291687c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *FD = cast<FunctionDecl>(D); 29172c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2918723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 29192c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 29202c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 29212c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 29222c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 29232c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 29242c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 29252c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 29262c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 29272c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 29282c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 29292c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 29302c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2931768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); 2932ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2933ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2934ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2935ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2936ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2938ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2939ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 29401731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2941ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 29421731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2943ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 294487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2945ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2946883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2947ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2948ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2949ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2950768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); 2951ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2952ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2953ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2954ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2955ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29561b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2957ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2958ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 29591731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2960ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 29611731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2962ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 296387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2964ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2965883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2966ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2967ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2968ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2969768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); 2970ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2971ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2972ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2973ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2974ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29751b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 297626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 29771731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 297826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 2979bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 298087c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 2981c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 298226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2983883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 298426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 298526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2986bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 29870130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2988cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2989c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2990c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2991bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2992768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); 299326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 299426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 29951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { 299687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 2997711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 299887c44604325578b8de07d768391c1c9432404f5aChandler Carruth // Diagnostic is emitted elsewhere: here we store the (valid) Attr 2999e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 3000711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 300187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckCallingConvAttr(Attr, CC)) 3002711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3003e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 300487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 300587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 300687c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3007711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3008711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3009711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 301087c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3011e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 3012768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); 3013e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 3014e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 3015768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); 3016e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 3017f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 3018768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); 301904633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 3020e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 3021768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); 3022e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 302352fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3024768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); 302552fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 3026414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 302787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *Arg = Attr.getArg(0); 3028414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 30295cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 303087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3031414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 303287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3033414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 3034414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3035414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 30365f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3037414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PcsAttr::PCSType PCS; 3038414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") 3039414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS; 3040414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else if (StrRef == "aapcs-vfp") 3041414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS_VFP; 3042414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else { 304387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_invalid_pcs); 304487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3045414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 3046414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3047414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 3048768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); 3049414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3050e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 3051e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 3052e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 3053e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 3054e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 30551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ 305656aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 3057768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); 3058f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 3059f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 3060711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 3061711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 3062711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3063711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3064831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if ((attr.getNumArgs() != 0 && 3065831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || 3066831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek attr.getParameterName()) { 3067711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 3068711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3069711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3070ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 307155d3aaf9a537888734762170823daf750ea9036dEli Friedman 3072414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // TODO: diagnose uses of these conventions on the wrong target. Or, better 3073414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // move to TargetAttributesSema one day. 3074711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 3075711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 3076711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 3077711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 3078711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 3079711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 3080414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 3081414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Expr *Arg = attr.getArg(0); 3082414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 30835cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3084414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3085414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 3086414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr.setInvalid(); 3087414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return true; 3088414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3089414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 30905f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3091414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") { 3092414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS; 3093414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3094414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } else if (StrRef == "aapcs-vfp") { 3095414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS_VFP; 3096414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3097414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3098414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // FALLS THROUGH 3099414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 31007530c034c0c71a64c5a9173206d9742ae847af8bDavid Blaikie default: llvm_unreachable("unexpected attribute kind"); 3101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 31061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { 310787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 311087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckRegparmAttr(Attr, numParams)) 3111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 311387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 311487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 311587c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3116ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 3117ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 311855d3aaf9a537888734762170823daf750ea9036dEli Friedman 3119768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); 3120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 3123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 312487c44604325578b8de07d768391c1c9432404f5aChandler Carruthbool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { 312587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.isInvalid()) 3126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3127711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 312887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 1) { 312987c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 313087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 313487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *NumParamsExpr = Attr.getArg(0); 313555d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 3136ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 3137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 313887c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 313955d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 314087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3141711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 314255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 314355d3aaf9a537888734762170823daf750ea9036dEli Friedman 3144bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getRegParmMax() == 0) { 314587c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 314655d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 314787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 314955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 315055d3aaf9a537888734762170823daf750ea9036dEli Friedman 3151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 3152bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (numParams > Context.getTargetInfo().getRegParmMax()) { 315387c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 3154bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); 315587c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3156711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 315755d3aaf9a537888734762170823daf750ea9036dEli Friedman } 315855d3aaf9a537888734762170823daf750ea9036dEli Friedman 3159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3160ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 3161ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 31621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ 31637b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 31647b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 31657b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 3166bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 3167bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 31687b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31697b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31707b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 317187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 31727b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3173883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 31747b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31757b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31767b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 31777b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 31787b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 31797b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 31807b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 31817b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 31827b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 31837b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 31847b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31857b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31867b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 31877b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 31887b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 31897b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 31907b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 31917b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 31927b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 31937b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 31947b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 31957b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31987b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 3199768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, 32007b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 32017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 32027b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 32037b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 32047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 32067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 32070744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 3208b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 3209b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 3210b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3211c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 32126c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 32136c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isObjCObjectPointerType() || 32146c73a2975ba9112787380abd878876336957b3f6Douglas Gregor S.Context.isObjCNSObjectType(type); 3215c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3216c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 32176c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 32186c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isPointerType() || 32196c73a2975ba9112787380abd878876336957b3f6Douglas Gregor isValidSubjectOfNSAttribute(S, type); 3220c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3221c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 32221b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 322387c44604325578b8de07d768391c1c9432404f5aChandler Carruth ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); 3224c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 322587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3226768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedParameter; 3227c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3228c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3229c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3230c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 323187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getKind() == AttributeList::AT_ns_consumed) { 3232c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 3233c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3234c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 3235c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 3236c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3237c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3238c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3239c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 324087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 3241768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << cf; 3242c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3243c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3244c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3245c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 3246768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); 3247c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 3248768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); 3249c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3250c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 32511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumesSelfAttr(Sema &S, Decl *D, 32521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 325387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 325487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3255768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedMethod; 3256c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3257c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3258c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3259768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); 3260c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3261c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 32621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSReturnsRetainedAttr(Sema &S, Decl *D, 32631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3264b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3265c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 3266bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 326787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 3268c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 326987c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 3270831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian returnType = PD->getType(); 32714e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie else if (S.getLangOpts().ObjCAutoRefCount && hasDeclarator(D) && 327287c44604325578b8de07d768391c1c9432404f5aChandler Carruth (Attr.getKind() == AttributeList::AT_ns_returns_retained)) 3273f85e193739c953358c865005855253af4f68a497John McCall return; // ignore: was handled as a type attribute 327487c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 3275c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 32765dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 327787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3278768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() 3279883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 3280b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3281b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 3282bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3283c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 3284c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 328587c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 32867530c034c0c71a64c5a9173206d9742ae847af8bDavid Blaikie default: llvm_unreachable("invalid ownership attribute"); 3287c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3288c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 3289c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 3290c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 3291c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3292c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3293c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3294c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 3295c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 3296c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 3297c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3298c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3299c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3300c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3301c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 330287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3303768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; 3304bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 33055dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 3306bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 330787c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3308b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 3309b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("invalid ownership attribute"); 3310c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3311768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), 3312c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 3313c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 331431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3315768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), 3316f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 331731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 331831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 3319768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), 3320f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 332131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 3322b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 3323768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), 3324f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3325b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3326b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3327768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), 3328f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3329b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3330b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 3331b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 3332b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3333dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCallstatic void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, 3334dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall const AttributeList &attr) { 3335dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall SourceLocation loc = attr.getLoc(); 3336dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3337dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); 3338dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3339dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall if (!isa<ObjCMethodDecl>(method)) { 3340dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::err_attribute_wrong_decl_type) 3341f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << SourceRange(loc, loc) << attr.getName() << ExpectedMethod; 3342dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3343dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3344dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3345dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Check that the method returns a normal pointer. 3346dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall QualType resultType = method->getResultType(); 3347f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian 3348f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian if (!resultType->isReferenceType() && 3349f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian (!resultType->isPointerType() || resultType->isObjCRetainableType())) { 3350dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3351dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc) 3352dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; 3353dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3354dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Drop the attribute. 3355dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3356dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3357dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3358dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall method->addAttr( 3359768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); 3360dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall} 3361dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 33628dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall/// Handle cf_audited_transfer and cf_unknown_transfer. 33638dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCallstatic void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { 33648dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (!isa<FunctionDecl>(D)) { 33658dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3366f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << A.getRange() << A.getName() << ExpectedFunction; 33678dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 33688dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33698dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 33708dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall bool IsAudited = (A.getKind() == AttributeList::AT_cf_audited_transfer); 33718dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 33728dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // Check whether there's a conflicting attribute already present. 33738dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Attr *Existing; 33748dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 33758dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFUnknownTransferAttr>(); 33768dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 33778dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFAuditedTransferAttr>(); 33788dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33798dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (Existing) { 33808dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) 33818dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getName() 33828dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") 33838dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getRange() << Existing->getRange(); 33848dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 33858dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33868dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 33878dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // All clear; add the attribute. 33888dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 33898dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 33908dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); 33918dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 33928dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 33938dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); 33948dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33958dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall} 33968dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3397fe98da0fa352462c02db037360788748f95466f7John McCallstatic void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, 3398fe98da0fa352462c02db037360788748f95466f7John McCall const AttributeList &Attr) { 3399fe98da0fa352462c02db037360788748f95466f7John McCall RecordDecl *RD = dyn_cast<RecordDecl>(D); 3400fe98da0fa352462c02db037360788748f95466f7John McCall if (!RD || RD->isUnion()) { 3401fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3402f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedStruct; 3403fe98da0fa352462c02db037360788748f95466f7John McCall } 3404fe98da0fa352462c02db037360788748f95466f7John McCall 3405fe98da0fa352462c02db037360788748f95466f7John McCall IdentifierInfo *ParmName = Attr.getParameterName(); 3406fe98da0fa352462c02db037360788748f95466f7John McCall 3407fe98da0fa352462c02db037360788748f95466f7John McCall // In Objective-C, verify that the type names an Objective-C type. 3408fe98da0fa352462c02db037360788748f95466f7John McCall // We don't want to check this outside of ObjC because people sometimes 3409fe98da0fa352462c02db037360788748f95466f7John McCall // do crazy C declarations of Objective-C types. 34104e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (ParmName && S.getLangOpts().ObjC1) { 3411fe98da0fa352462c02db037360788748f95466f7John McCall // Check for an existing type with this name. 3412fe98da0fa352462c02db037360788748f95466f7John McCall LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), 3413fe98da0fa352462c02db037360788748f95466f7John McCall Sema::LookupOrdinaryName); 3414fe98da0fa352462c02db037360788748f95466f7John McCall if (S.LookupName(R, Sc)) { 3415fe98da0fa352462c02db037360788748f95466f7John McCall NamedDecl *Target = R.getFoundDecl(); 3416fe98da0fa352462c02db037360788748f95466f7John McCall if (Target && !isa<ObjCInterfaceDecl>(Target)) { 3417fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); 3418fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(Target->getLocStart(), diag::note_declared_at); 3419fe98da0fa352462c02db037360788748f95466f7John McCall } 3420fe98da0fa352462c02db037360788748f95466f7John McCall } 3421fe98da0fa352462c02db037360788748f95466f7John McCall } 3422fe98da0fa352462c02db037360788748f95466f7John McCall 3423fe98da0fa352462c02db037360788748f95466f7John McCall D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, 3424fe98da0fa352462c02db037360788748f95466f7John McCall ParmName)); 3425fe98da0fa352462c02db037360788748f95466f7John McCall} 3426fe98da0fa352462c02db037360788748f95466f7John McCall 34271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCOwnershipAttr(Sema &S, Decl *D, 34281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 342987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3430f85e193739c953358c865005855253af4f68a497John McCall 343187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3432f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedVariable; 3433f85e193739c953358c865005855253af4f68a497John McCall} 3434f85e193739c953358c865005855253af4f68a497John McCall 34351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, 34361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 343787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { 343887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3439f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedVariable; 3440f85e193739c953358c865005855253af4f68a497John McCall return; 3441f85e193739c953358c865005855253af4f68a497John McCall } 3442f85e193739c953358c865005855253af4f68a497John McCall 344387c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *vd = cast<ValueDecl>(D); 3444f85e193739c953358c865005855253af4f68a497John McCall QualType type = vd->getType(); 3445f85e193739c953358c865005855253af4f68a497John McCall 3446f85e193739c953358c865005855253af4f68a497John McCall if (!type->isDependentType() && 3447f85e193739c953358c865005855253af4f68a497John McCall !type->isObjCLifetimeType()) { 344887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) 3449f85e193739c953358c865005855253af4f68a497John McCall << type; 3450f85e193739c953358c865005855253af4f68a497John McCall return; 3451f85e193739c953358c865005855253af4f68a497John McCall } 3452f85e193739c953358c865005855253af4f68a497John McCall 3453f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); 3454f85e193739c953358c865005855253af4f68a497John McCall 3455f85e193739c953358c865005855253af4f68a497John McCall // If we have no lifetime yet, check the lifetime we're presumably 3456f85e193739c953358c865005855253af4f68a497John McCall // going to infer. 3457f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) 3458f85e193739c953358c865005855253af4f68a497John McCall lifetime = type->getObjCARCImplicitLifetime(); 3459f85e193739c953358c865005855253af4f68a497John McCall 3460f85e193739c953358c865005855253af4f68a497John McCall switch (lifetime) { 3461f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_None: 3462f85e193739c953358c865005855253af4f68a497John McCall assert(type->isDependentType() && 3463f85e193739c953358c865005855253af4f68a497John McCall "didn't infer lifetime for non-dependent type?"); 3464f85e193739c953358c865005855253af4f68a497John McCall break; 3465f85e193739c953358c865005855253af4f68a497John McCall 3466f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Weak: // meaningful 3467f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Strong: // meaningful 3468f85e193739c953358c865005855253af4f68a497John McCall break; 3469f85e193739c953358c865005855253af4f68a497John McCall 3470f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_ExplicitNone: 3471f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Autoreleasing: 347287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) 3473f85e193739c953358c865005855253af4f68a497John McCall << (lifetime == Qualifiers::OCL_Autoreleasing); 3474f85e193739c953358c865005855253af4f68a497John McCall break; 3475f85e193739c953358c865005855253af4f68a497John McCall } 3476f85e193739c953358c865005855253af4f68a497John McCall 347787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) 3478768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); 3479f85e193739c953358c865005855253af4f68a497John McCall} 3480f85e193739c953358c865005855253af4f68a497John McCall 3481f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 34829428772f16e379bcad35254251f96e3d1077c730Aaron Ballman switch (Attr.getKind()) { 34839428772f16e379bcad35254251f96e3d1077c730Aaron Ballman default: 34849428772f16e379bcad35254251f96e3d1077c730Aaron Ballman return false; 34859428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_dllimport: 34869428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_dllexport: 34879428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_uuid: 34889428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_deprecated: 34899428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_noreturn: 34909428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_nothrow: 34919428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_naked: 34929428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_noinline: 34939428772f16e379bcad35254251f96e3d1077c730Aaron Ballman return true; 34949428772f16e379bcad35254251f96e3d1077c730Aaron Ballman } 349511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 349611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 349711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 349811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 349911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 350011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 35011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { 350262ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { 350311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 35041731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 350511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 35061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 350711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 350811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 35095cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3510d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3511d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 3512d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3513d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3514d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 35155f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3516d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3517d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 3518d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 3519f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor 3520d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 3521d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 3522d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3523d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3524d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3525d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 3526d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3527d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3528d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3529d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3530f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 3531d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 35325f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::iterator I = StrRef.begin(); 3533f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 3534f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 3535f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 3536f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 3537d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 3538d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 3539d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3540d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3541d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3542d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 3543d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3544d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3545d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3546d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 3547d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 354811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 3549768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, 355011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 3551d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 355211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 3553f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 3554f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 3555b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 35560744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 35570744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 35580744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 35591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 35601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 356160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 35621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; 35631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; 35641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; 356560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 356660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 356760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 356860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 3569e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 35701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 35711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3572803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 3573e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_ibaction: handleIBAction(S, D, Attr); break; 3574e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_iboutlet: handleIBOutlet(S, D, Attr); break; 3575e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_iboutletcollection: 35761b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleIBOutletCollection(S, D, Attr); break; 3577803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 3578207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 3579ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 35806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 35814211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 35824211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 3583bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 3584bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 3585803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 358660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 358760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 358860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 358960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 359060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 359160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 35921b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; 35931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; 3594bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 35951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAlwaysInlineAttr (S, D, Attr); break; 3596b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 35971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAnalyzerNoReturnAttr (S, D, Attr); break; 35981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; 35991b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; 3600bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 36011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleDependencyAttr (S, D, Attr); break; 36021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; 36031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; 36041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; 36051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; 36061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; 36073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 36081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleExtVectorTypeAttr(S, scope, D, Attr); 36093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 36101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; 36111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; 36121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; 36131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; 36147b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 36151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleLaunchBoundsAttr(S, D, Attr); 36167b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 36171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; 36181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; 36191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; 36201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; 36211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; 3622dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 3623dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 3624dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 36251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOwnershipAttr (S, D, Attr); break; 36261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; 36271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; 36281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; 36291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; 36301b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; 3631b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3632b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 36331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCOwnershipAttr(S, D, Attr); break; 3634f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_precise_lifetime: 36351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCPreciseLifetimeAttr(S, D, Attr); break; 3636f85e193739c953358c865005855253af4f68a497John McCall 3637dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall case AttributeList::AT_objc_returns_inner_pointer: 3638dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall handleObjCReturnsInnerPointerAttr(S, D, Attr); break; 3639dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3640fe98da0fa352462c02db037360788748f95466f7John McCall case AttributeList::AT_ns_bridged: 3641fe98da0fa352462c02db037360788748f95466f7John McCall handleNSBridgedAttr(S, scope, D, Attr); break; 3642fe98da0fa352462c02db037360788748f95466f7John McCall 36438dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall case AttributeList::AT_cf_audited_transfer: 36448dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall case AttributeList::AT_cf_unknown_transfer: 36458dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall handleCFTransferAttr(S, D, Attr); break; 36468dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3647b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 3648c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 36491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; 3650c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 36511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSConsumesSelfAttr(S, D, Attr); break; 3652c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3653c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 365431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 365531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3656b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3657b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 36581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSReturnsRetainedAttr(S, D, Attr); break; 3659b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3660e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_reqd_work_group_size: 36611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleReqdWorkGroupSize(S, D, Attr); break; 36626f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 3663521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 36641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleInitPriorityAttr(S, D, Attr); break; 3665521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 36661b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; 3667e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_ms_struct: handleMsStructAttr (S, D, Attr); break; 36681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; 36691b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; 3670e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_objc_arc_weak_reference_unavailable: 3671742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian handleArcWeakrefUnavailableAttr (S, D, Attr); 3672742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian break; 3673b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard case AttributeList::AT_objc_root_class: 3674b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard handleObjCRootClassAttr(S, D, Attr); 3675b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard break; 367671207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek case AttributeList::AT_objc_requires_property_definitions: 367771207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek handleObjCRequiresPropertyDefsAttr (S, D, Attr); 3678e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian break; 36791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; 3680f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola case AttributeList::AT_returns_twice: 3681f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola handleReturnsTwiceAttr(S, D, Attr); 3682f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola break; 36831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; 36841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; 36851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); 3686026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 36871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; 36881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; 36891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; 3690803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 36911b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleTransparentUnionAttr(S, D, Attr); 3692803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 36930db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 36941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCExceptionAttr(S, D, Attr); 36950db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 3696d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 36971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCMethodFamilyAttr(S, D, Attr); 3698d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 3699e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_NSObject: handleObjCNSObject (S, D, Attr); break; 37001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; 37011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; 37021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; 37031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; 37041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; 37051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; 37061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; 37071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; 3708bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 370905f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 371005f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 37117255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 37121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNoInstrumentFunctionAttr(S, D, Attr); 37137255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 371404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 371504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 371604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 3717f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 371852fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3719414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: 37201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleCallConvAttr(S, D, Attr); 372104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 3722f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 37231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOpenCLKernelAttr(S, D, Attr); 3724f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 372511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 37261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleUuidAttr(S, D, Attr); 372711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 3728fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3729fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // Thread safety attributes: 3730fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_guarded_var: 3731fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr); 3732fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3733fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_pt_guarded_var: 3734fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr, /*pointer = */true); 3735fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3736fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_scoped_lockable: 3737fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr, /*scoped = */true); 3738fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 373971efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany case AttributeList::AT_no_address_safety_analysis: 374071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany handleNoAddressSafetyAttr(S, D, Attr); 374171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany break; 3742fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_no_thread_safety_analysis: 3743fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleNoThreadSafetyAttr(S, D, Attr); 3744fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3745fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_lockable: 3746fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr); 3747fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3748db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_guarded_by: 3749db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr); 3750db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3751db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_pt_guarded_by: 3752db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr, /*pointer = */true); 3753db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3754db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_lock_function: 3755db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr, /*exclusive = */true); 3756db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3757db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_locks_required: 3758db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); 3759db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3760db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_trylock_function: 3761db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); 3762db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3763db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_lock_returned: 3764db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockReturnedAttr(S, D, Attr); 3765db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3766db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_locks_excluded: 3767db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksExcludedAttr(S, D, Attr); 3768db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3769db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_lock_function: 3770db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr); 3771db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3772db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_locks_required: 3773db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr); 3774db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3775db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_trylock_function: 3776db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr); 3777db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3778db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_unlock_function: 3779db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleUnlockFunAttr(S, D, Attr); 3780db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3781db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_before: 3782db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */true); 3783db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3784db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_after: 3785db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */false); 3786db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3787fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3788803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 378982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 379082d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 379182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 37927d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 37937d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 3794803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 3795803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3796803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3797803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 379860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 379960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 380060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 380160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 38021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, 38031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr, 380460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 380560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 380660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 380760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 380860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 380960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 381060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 381160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 381260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 38131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessNonInheritableDeclAttr(S, scope, D, Attr); 381460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 381560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 38161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessInheritableDeclAttr(S, scope, D, Attr); 381760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 381860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 3819803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 3820803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 3821f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 382260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 382360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 382411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 38251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); 382611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 382711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 382811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 382911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 383011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 383160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 383211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 3833dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 383411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 3835803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3836803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3837803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 38385f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen// Annotation attributes are the only attributes allowed after an access 38395f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen// specifier. 38405f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggenbool Sema::ProcessAccessDeclAttributeList(AccessSpecDecl *ASDecl, 38415f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen const AttributeList *AttrList) { 38425f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen for (const AttributeList* l = AttrList; l; l = l->getNext()) { 38435f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen if (l->getKind() == AttributeList::AT_annotate) { 38445f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen handleAnnotateAttr(*this, ASDecl, *l); 38455f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } else { 38465f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen Diag(l->getLoc(), diag::err_only_annotate_after_access_spec); 38475f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen return true; 38485f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } 38495f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } 38505f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen 38515f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen return false; 38525f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen} 38535f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen 3854e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Check a list of attributes to see if it 3855e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// contains any decl attributes that we should warn about. 3856e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallstatic void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { 3857e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for ( ; A; A = A->getNext()) { 3858e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Only warn if the attribute is an unignored, non-type attribute. 3859e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->isUsedAsTypeAttr()) continue; 3860e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::IgnoredAttribute) continue; 3861e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3862e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::UnknownAttribute) { 3863e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) 3864e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 3865e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } else { 3866e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) 3867e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 3868e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 3869e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 3870e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 3871e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3872e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Given a declarator which is not being 3873e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// used to build a declaration, complain about any decl attributes 3874e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// which might be lying around on it. 3875e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallvoid Sema::checkUnusedDeclAttributes(Declarator &D) { 3876e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); 3877e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getAttributes()); 3878e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) 3879e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); 3880e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 3881e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3882e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 3883e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 3884900693b715b3832a42ae87157332baece94ccdd8Eli FriedmanNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, 3885900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SourceLocation Loc) { 38867b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 3887e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 3888e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 3889900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FunctionDecl *NewFD; 3890900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Missing call to CheckFunctionDeclaration(). 3891900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Mangling? 3892900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the qualifier info correct? 3893900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the DeclContext correct? 3894900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 3895900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Loc, Loc, DeclarationName(II), 3896900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->getType(), FD->getTypeSourceInfo(), 3897900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SC_None, SC_None, 3898900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isInlineSpecified*/, 3899900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->hasPrototype(), 3900900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isConstexprSpecified*/); 3901900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewD = NewFD; 3902900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3903900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (FD->getQualifier()) 3904c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 3905900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3906900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // Fake up parameter variables; they are declared as if this were 3907900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // a typedef. 3908900693b715b3832a42ae87157332baece94ccdd8Eli Friedman QualType FDTy = FD->getType(); 3909900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { 3910900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SmallVector<ParmVarDecl*, 16> Params; 3911900693b715b3832a42ae87157332baece94ccdd8Eli Friedman for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), 3912900693b715b3832a42ae87157332baece94ccdd8Eli Friedman AE = FT->arg_type_end(); AI != AE; ++AI) { 3913900693b715b3832a42ae87157332baece94ccdd8Eli Friedman ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); 3914900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Param->setScopeInfo(0, Params.size()); 3915900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Params.push_back(Param); 3916900693b715b3832a42ae87157332baece94ccdd8Eli Friedman } 39174278c654b645402554eb52a48e9c7097c9f1233aDavid Blaikie NewFD->setParams(Params); 3918b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3919e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 3920e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 3921ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 3922a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 392316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 392416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 3925b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 3926b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 3927c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 3928b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3929e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3930e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 3931e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3932e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 3933e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 3934e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 39357b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 3936c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 3937c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 3938c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 3939c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 3940900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); 3941cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 3942cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 3943cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3944c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 3945c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 3946c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 3947c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 3948c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 3949c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 3950c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 3951c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 3952cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3953e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3954e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3955e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 39560744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 39570744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 39580744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 395960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 396060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 3961d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 3962d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 396331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (Inheritable) { 396431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor LoadExternalWeakUndeclaredIdentifiers(); 396531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (!WeakUndeclaredIdentifiers.empty()) { 396631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 396731e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (IdentifierInfo *Id = ND->getIdentifier()) { 396831e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 396931e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor = WeakUndeclaredIdentifiers.find(Id); 397031e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 397131e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakInfo W = I->second; 397231e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor DeclApplyPragmaWeak(S, ND, W); 397331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakUndeclaredIdentifiers[Id] = W; 397431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor } 3975d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 3976e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3977e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3978e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3979e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 39800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 39817f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 398260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3983bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 39840744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 39850744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 39860744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 39870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 39880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 39890744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 399060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3991bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 39920744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 39930744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 399460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 39950744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 399654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3997f85e193739c953358c865005855253af4f68a497John McCall/// Is the given declaration allowed to use a forbidden type? 3998f85e193739c953358c865005855253af4f68a497John McCallstatic bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { 3999f85e193739c953358c865005855253af4f68a497John McCall // Private ivars are always okay. Unfortunately, people don't 4000f85e193739c953358c865005855253af4f68a497John McCall // always properly make their ivars private, even in system headers. 4001f85e193739c953358c865005855253af4f68a497John McCall // Plus we need to make fields okay, too. 4002a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian // Function declarations in sys headers will be marked unavailable. 4003a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && 4004a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian !isa<FunctionDecl>(decl)) 4005f85e193739c953358c865005855253af4f68a497John McCall return false; 4006f85e193739c953358c865005855253af4f68a497John McCall 4007f85e193739c953358c865005855253af4f68a497John McCall // Require it to be declared in a system header. 4008f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); 4009f85e193739c953358c865005855253af4f68a497John McCall} 4010f85e193739c953358c865005855253af4f68a497John McCall 4011f85e193739c953358c865005855253af4f68a497John McCall/// Handle a delayed forbidden-type diagnostic. 4012f85e193739c953358c865005855253af4f68a497John McCallstatic void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, 4013f85e193739c953358c865005855253af4f68a497John McCall Decl *decl) { 4014f85e193739c953358c865005855253af4f68a497John McCall if (decl && isForbiddenTypeAllowed(S, decl)) { 4015f85e193739c953358c865005855253af4f68a497John McCall decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, 4016f85e193739c953358c865005855253af4f68a497John McCall "this system declaration uses an unsupported type")); 4017f85e193739c953358c865005855253af4f68a497John McCall return; 4018f85e193739c953358c865005855253af4f68a497John McCall } 40194e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ObjCAutoRefCount) 4020175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { 4021175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // FIXME. we may want to supress diagnostics for all 4022175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // kind of forbidden type messages on unavailable functions. 4023175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (FD->hasAttr<UnavailableAttr>() && 4024175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.getForbiddenTypeDiagnostic() == 4025175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag::err_arc_array_param_no_ownership) { 4026175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.Triggered = true; 4027175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian return; 4028175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 4029175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 4030f85e193739c953358c865005855253af4f68a497John McCall 4031f85e193739c953358c865005855253af4f68a497John McCall S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) 4032f85e193739c953358c865005855253af4f68a497John McCall << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); 4033f85e193739c953358c865005855253af4f68a497John McCall diag.Triggered = true; 4034f85e193739c953358c865005855253af4f68a497John McCall} 4035f85e193739c953358c865005855253af4f68a497John McCall 4036eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 4037eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 4038eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 4039eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 4040eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4041eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 4042eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 4043eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 4044eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 4045eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 4046eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4047eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 4048eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 4049eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4050eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 4051eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 4052eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 4053eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 4054eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4055eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 4056eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 405754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 405854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4059eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 4060eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 4061eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 406254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4063eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 4064eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 4065eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 4066eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 406754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4068eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 4069eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 407054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4071eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 4072eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 4073eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 407458e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 40752f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 40762f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 4077e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall if (decl) { 4078eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 4079eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 40802f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 40812f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 40822f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 40832f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 40842f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 4085eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 4086eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 4087eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 40882f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 40892f514480c448708ec382a684cf5e035d3a827ec8John McCall 4090eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 40912f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 4092e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // Don't bother giving deprecation diagnostics if the decl is invalid. 4093e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall if (!decl->isInvalidDecl()) 4094e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall S.HandleDelayedDeprecationCheck(diag, decl); 40952f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 40962f514480c448708ec382a684cf5e035d3a827ec8John McCall 40972f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 4098eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 40992f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 4100f85e193739c953358c865005855253af4f68a497John McCall 4101f85e193739c953358c865005855253af4f68a497John McCall case DelayedDiagnostic::ForbiddenType: 4102f85e193739c953358c865005855253af4f68a497John McCall handleDelayedForbiddenType(S, diag, decl); 4103f85e193739c953358c865005855253af4f68a497John McCall break; 410454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 410554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 410654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 410754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 410858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 4109eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 411029233802236f7fe1db20e00eca4f5cc8f3f64adeDouglas Gregor DD.Stack[i].Destroy(); 411158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 4112eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 41132f514480c448708ec382a684cf5e035d3a827ec8John McCall} 41142f514480c448708ec382a684cf5e035d3a827ec8John McCall 41152f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 41162f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 41170a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 41182f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 4119c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis // A category implicitly has the availability of the interface. 4120c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) 4121c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis return CatD->getClassInterface()->isDeprecated(); 41222f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 41232f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 41242f514480c448708ec382a684cf5e035d3a827ec8John McCall} 41252f514480c448708ec382a684cf5e035d3a827ec8John McCall 41269c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 41272f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 41282f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 41292f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 41302f514480c448708ec382a684cf5e035d3a827ec8John McCall 41312f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 4132ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 4133c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 4134ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 4135ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 4136b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian else if (DD.getUnknownObjCClass()) { 4137b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_fwdclass_message) 4138b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian << DD.getDeprecationDecl()->getDeclName(); 4139b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Diag(DD.getUnknownObjCClass()->getLocation(), diag::note_forward_class); 4140b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian } 4141c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 4142c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 4143ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 414454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 414554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 41465f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, 41478e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 414889ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian const ObjCInterfaceDecl *UnknownObjCClass) { 414954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 4150eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 4151b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, 4152b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian UnknownObjCClass, 4153b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Message)); 415454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 415554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 415654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 415754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 41583a387441ae339363ee5b254658f295e97bd9e913Argyrios Kyrtzidis if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) 415954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 4160ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 4161c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 4162c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 41638e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 4164743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 41658e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 416689ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian else { 41678e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 416889ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); 416989ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian } 41708e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 417154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 4172