SemaDeclAttr.cpp revision 6c73a2975ba9112787380abd878876336957b3f6
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 ExpectedParameterOrMethod, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassOrVirtualMethod, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 43883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVirtualMethod, 44883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassMember, 45883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 46883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 47db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedVariableFunctionOrLabel, 48db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedFieldOrGlobalVar 49883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 50883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 51e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 52e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 53e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 54e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 5587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic const FunctionType *getFunctionType(const Decl *D, 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 5887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) 596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 6087c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) 616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 6287c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) 636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 66bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 686217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 69755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 706217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 71d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 72183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 763568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 773568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 78d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 79a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 8087c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunction(const Decl *D) { 8187c44604325578b8de07d768391c1c9432404f5aChandler Carruth return getFunctionType(D, false) != NULL; 82a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 83a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 84a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 85d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 86d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 8787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethod(const Decl *D) { 8887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isFunction(D)|| isa<ObjCMethodDecl>(D); 89d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 903568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 91620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 92620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 93620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 9487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodOrBlock(const Decl *D) { 9587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethod(D)) 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 97620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 9887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 99620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 101620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 10287c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<BlockDecl>(D); 103620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 104620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 10787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasDeclarator(const Decl *D) { 108f85e193739c953358c865005855253af4f68a497John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 10987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || 11087c44604325578b8de07d768391c1c9432404f5aChandler Carruth isa<ObjCPropertyDecl>(D); 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 113d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 114d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 115620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 11687c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasFunctionProto(const Decl *D) { 11787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 11872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 119620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 12087c44604325578b8de07d768391c1c9432404f5aChandler Carruth assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); 121d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 122d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1233568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1243568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 125d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 126d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 127d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 12887c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic unsigned getFunctionOrMethodNumArgs(const Decl *D) { 12987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 13187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 132d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 13387c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_size(); 1343568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1353568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13687c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { 13787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 13987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 140d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 141bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14287c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); 1433568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1443568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 14587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodResultType(const Decl *D) { 14687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 1475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 14887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->getResultType(); 1495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 15187c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodVariadic(const Decl *D) { 15287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) { 15372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1543568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 15587c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 156db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 157d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 15887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->isVariadic(); 1593568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1603568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1613568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 16287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isInstanceMethod(const Decl *D) { 16387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) 16407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 169183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 170b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 172bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 173506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 174506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 176bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 177506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 178bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 184085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1856217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 186085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 187085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 188085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1896217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 191085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 192bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 193085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 194465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 195085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 196085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 197085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 198085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 199085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 200b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has exactly as many args as Num. May 201b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 2021731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruthstatic bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, 2031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth unsigned int Num) { 2041731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (Attr.getNumArgs() != Num) { 2051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; 2061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return false; 2071731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth } 2081731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2091731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return true; 2101731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth} 2111731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 212db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 213b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has at least as many args as Num. May 214b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 215b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, 216b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int Num) { 217b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (Attr.getNumArgs() < Num) { 218db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; 219db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return false; 220db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 221db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 222db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return true; 223db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 224db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 225db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski/// 226fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a field or potentially shared global var 227fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a field or potentially shared global variable 228fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 22939997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool mayBeSharedVariable(const Decl *D) { 230fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (isa<FieldDecl>(D)) 231fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 23239997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const VarDecl *vd = dyn_cast<VarDecl>(D)) 233fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); 234fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 235fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 236fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 237fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 238b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the passed-in expression is of type int or bool. 239b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool isIntOrBool(Expr *Exp) { 240b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = Exp->getType(); 241b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return QT->isBooleanType() || QT->isIntegerType(); 242b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 243b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 244fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 245fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a pointer type. 246fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// Note that this function may produce an error message. 247fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a pointer type; false otherwise 248fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 24939997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool checkIsPointer(Sema &S, const Decl *D, const AttributeList &Attr) { 25039997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { 251fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski QualType QT = vd->getType(); 25239997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (QT->isAnyPointerType()) 253fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 254fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_pointer_attribute_wrong_type) 255fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName()->getName() << QT; 256fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } else { 257fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) 258fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName(); 259fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 260fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 261fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 262fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 263b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Checks that the passed in QualType either is of RecordType or points 264b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// to RecordType. Returns the relevant RecordType, null if it does not exit. 2657d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramerstatic const RecordType *getRecordType(QualType QT) { 2667d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const RecordType *RT = QT->getAs<RecordType>()) 267b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return RT; 2687d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2697d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer // Now check if we point to record type. 2707d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const PointerType *PT = QT->getAs<PointerType>()) 2717d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return PT->getPointeeType()->getAs<RecordType>(); 2727d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2737d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return 0; 274b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 275b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 2763ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \brief Thread Safety Analysis: Checks that the passed in RecordType 2773ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// resolves to a lockable object. May flag an error. 278d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramerstatic bool checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, 279d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer const RecordType *RT) { 2803ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Flag error if could not get record type for this argument. 281d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT) { 2823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_class) 2833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski << Attr.getName(); 2843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return false; 2853ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 2863ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Flag error if the type is not lockable. 287d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT->getDecl()->getAttr<LockableAttr>()) { 2883ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_lockable) 2893ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski << Attr.getName(); 2903ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return false; 2913ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 2923ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return true; 2933ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski} 2943ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 295b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Thread Safety Analysis: Checks that all attribute arguments, starting 296b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// from Sidx, resolve to a lockable object. May flag an error. 2973ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param Sidx The attribute argument index to start checking with. 2983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param ParamIdxOk Whether an argument can be indexing into a function 2993ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// parameter list. 3003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowskistatic bool checkAttrArgsAreLockableObjs(Sema &S, Decl *D, 3013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const AttributeList &Attr, 3023ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVectorImpl<Expr*> &Args, 303b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski int Sidx = 0, 304b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool ParamIdxOk = false) { 3053ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { 306b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski Expr *ArgExp = Attr.getArg(Idx); 3073ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 308ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski if (ArgExp->isTypeDependent()) { 309ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski // FIXME -- need to processs this again on template instantiation 310ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski Args.push_back(ArgExp); 311ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski continue; 312ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski } 313b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3143ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski QualType ArgTy = ArgExp->getType(); 315b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3163ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // First see if we can just cast to record type, or point to record type. 3173ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const RecordType *RT = getRecordType(ArgTy); 318b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3193ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Now check if we index into a record type function param. 3203ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!RT && ParamIdxOk) { 3213ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 322b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); 323b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if(FD && IL) { 324b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int NumParams = FD->getNumParams(); 325b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski llvm::APInt ArgValue = IL->getValue(); 3263ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); 3273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; 3283ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { 329b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) 330b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << Idx + 1 << NumParams; 331b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return false; 332b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 3333ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); 3343ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski RT = getRecordType(ArgTy); 335b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 336b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 337b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3383ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkForLockableRecord(S, D, Attr, RT)) 339b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return false; 340b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3413ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Args.push_back(ArgExp); 342b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 343b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return true; 344b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 345b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 346e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 347e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 348e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 349e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 3503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 3513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 3523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 3533068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 354fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, 355fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool pointer = false) { 356fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 357fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 358fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 359fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 360fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 361fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 362fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!mayBeSharedVariable(D)) { 363fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 364b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 365fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 366fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 367fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 368fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer && !checkIsPointer(S, D, Attr)) 369fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 370fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 371fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer) 372768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); 373fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 374768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); 375fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 376fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 377db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, 378b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool pointer = false) { 379db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 380db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 381b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 382db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 383db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 3843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 3853ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 386db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 387db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (!mayBeSharedVariable(D)) { 388db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 389b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 390db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 391db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 392db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 393db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer && !checkIsPointer(S, D, Attr)) 394db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 395db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 3963ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 397ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski // FIXME: handle attributes with dependent types 3983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return; 3993ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 4003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 4013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkForLockableRecord(S, D, Attr, getRecordType(Arg->getType()))) 402b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 403b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 404db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer) 405768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), 4063ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, Arg)); 407db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 408768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); 409db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 410db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 411db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 412fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, 413fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool scoped = false) { 414fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 415fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 416fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 417fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 418fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 4191748b1256646cf0752f172c53ad7482f7beed185Caitlin Sadowski // FIXME: Lockable structs for C code. 420fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!isa<CXXRecordDecl>(D)) { 421fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 422fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedClass; 423fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 424fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 425fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 426fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (scoped) 427768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); 428fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 429768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); 430fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 431fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 432fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleNoThreadSafetyAttr(Sema &S, Decl *D, 433fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski const AttributeList &Attr) { 434fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 435fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 436fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 437fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 438fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 439b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 440fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 441fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 442fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 443fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 444fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 445768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), 446fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Context)); 447fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 448fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 449db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, 450db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski bool before) { 451db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 452db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 453b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 454db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 455db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 456db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 457b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski ValueDecl *VD = dyn_cast<ValueDecl>(D); 458b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!VD || !mayBeSharedVariable(D)) { 459db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 460b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 461db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 462db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 463db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 464b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // Check that this attribute only applies to lockable types 465b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = VD->getType(); 466b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!QT->isDependentType()) { 467b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const RecordType *RT = getRecordType(QT); 468b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { 469b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_decl_not_lockable) 470b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 471b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 472b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 473b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 474b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4753ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 476b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 4773ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 478b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 479b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4803ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 4813ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 4823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 4833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 484db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (before) 485768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, 4863ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 487db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 488768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, 4893ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 490db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 491db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 492db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 493b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 494db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 495db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 496db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 497db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 498b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that the attribute is applied to a function 499b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 500db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 501db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 502db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 503db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 504db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 505b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5063ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 5073ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) 508b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 509b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5103ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5113ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 5123ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5133ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 514db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 515768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), 5163ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5173ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 518db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 519768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), 5203ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5213ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 522db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 523db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 524db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 525b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 526db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 527db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 528b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 529db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 530db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 531b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 532b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 533db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 534db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 535db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 536db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 537db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 538b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isIntOrBool(Attr.getArg(0))) { 539b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) 540b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 541b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 542b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 543b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5443ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 2> Args; 545b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5463ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1)) 547b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 548b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5493ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5503ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5513ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 552db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 553768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), 5543ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, 55569f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 5563ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 557db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 558768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), 55969f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski S.Context, 56069f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 56169f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski StartArg, Size)); 562db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 563db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 564db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, 565b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 566db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 567db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 568b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 569db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 570db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 571b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 572db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 573db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 574db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 575db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 576db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 577b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5783ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 5793ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 580b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 581b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 5843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5853ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 586db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 587768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), 5883ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5893ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 590db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 591768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), 5923ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5933ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 594db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 595db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 596db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleUnlockFunAttr(Sema &S, Decl *D, 597b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 598db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 599db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 600db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 601db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 602b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 603db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 604db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 605db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 606db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 607db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 608b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6093ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 6103ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) 611b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 612b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6133ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6143ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 6153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6163ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 617768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, 6183ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 619db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 620db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 621db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockReturnedAttr(Sema &S, Decl *D, 622b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 623db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 624db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 625b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 626db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 6273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 628db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 629b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 630db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 631db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 632db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 633db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 634db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6353ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 636b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 637b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6383ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 6393ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkForLockableRecord(S, D, Attr, getRecordType(Arg->getType()))) 6403ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return; 6413ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 642768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, Arg)); 643db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 644db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 645db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksExcludedAttr(Sema &S, Decl *D, 646b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 647db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 648db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 649b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 650db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 651db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 652b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 653db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 654db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 655db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 656db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 657db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 658b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6593ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 6603ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 661b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 662b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6643ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 6653ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6663ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 667768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, 6683ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 669db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 670db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 671db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6721b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, 6731b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 67487c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); 675545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 676803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 677545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 6786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 679bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 6819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 6839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 6859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 686f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 687f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 688f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 6894ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 6904ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor ExprResult Size = S.ActOnIdExpression(scope, SS, id, false, false); 6914ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 6924ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 6934ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 6944ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 6959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 6969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 6971731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 6989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 6991731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 7007a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 7016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 7049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 7059ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 7069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 707ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 708a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 709bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 7119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 7126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 7166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 7171731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 7186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 719bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 72087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 721768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 72287c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { 7236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 7246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 7256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 726803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 727fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 72808631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 7296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 730768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 7316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 7323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 7336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { 73687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 737768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); 738c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian else 739c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 740c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian} 741c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian 7421b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { 74396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 7441731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 74596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 746bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 74763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 74887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 74963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 750768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); 75163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 75263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 75363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7544ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 75563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 75663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7572f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenekstatic bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { 7582f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // The IBOutlet/IBOutletCollection attributes only apply to instance 7592f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // variables or properties of Objective-C classes. The outlet must also 7602f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // have an object reference type. 7612f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { 7622f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 7632f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek S.Diag(Attr.getLoc(), diag::err_iboutlet_object_type) 7642f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << VD->getType() << 0; 7652f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 7662f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7672f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7682f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { 7692f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 7702f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek S.Diag(Attr.getLoc(), diag::err_iboutlet_object_type) 7712f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << PD->getType() << 1; 7722f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 7732f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7742f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7752f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else { 7762f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 7772f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 7782f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 7792f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 7802f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return true; 7812f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek} 7822f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 7831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { 78463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 7851731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 78663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 7872f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 7882f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 78963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 79063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7912f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); 79296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 79396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 7941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutletCollection(Sema &S, Decl *D, 7951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 796857e918a8a40deb128840308a318bf623d68295fTed Kremenek 797857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 798a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 799857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 800857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 801857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 802857e918a8a40deb128840308a318bf623d68295fTed Kremenek 8032f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 804857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 8052f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 806a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 807a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 808a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 8093a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 810b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 81187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.getScopeForContext(D->getDeclContext()->getParent())); 812a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 813a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 814a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 815a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 816b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 817a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 818a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 819a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 820a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 821a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 822a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 823a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 824a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 825a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 826f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, 827f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis QT, Attr.getParameterLoc())); 828857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 829857e918a8a40deb128840308a318bf623d68295fTed Kremenek 830d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruthstatic void possibleTransparentUnionPointerType(QualType &T) { 83168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (const RecordType *UT = T->getAsUnionType()) 83268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 83368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 83468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 83568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 83668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian QualType QT = it->getType(); 83768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (QT->isAnyPointerType() || QT->isBlockPointerType()) { 83868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian T = QT; 83968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian return; 84068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 84168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 84268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 84368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian} 84468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 8451b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { 846bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 847bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 84887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 849fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 850883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 851eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 852eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 853bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 85407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 85507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 85687c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 85787c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 858eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 859eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 8605f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> NonNullArgs; 861bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 862eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 863eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 864bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 865bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 866eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 8677a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 868eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 869ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 870ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 871fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 872fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 873eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 874eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 875bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 876eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 877bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 878eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 879fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 88030bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 881eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 882eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 883bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 884465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 88507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 88607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 88707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 88807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 88907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 89007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 89107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 89207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 89307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 894eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 895eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 89687c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 897d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 89868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 899dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 900eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 901c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 902fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 9037fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 904eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 905bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 906eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 907eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 908bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 909bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 910bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 9117fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 91287c44604325578b8de07d768391c1c9432404f5aChandler Carruth for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { 91387c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); 914d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 915dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 916d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 91746bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 918bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 919ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 92060acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 92160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 92260acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 92360acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 92460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 9257fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 92660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 927eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 9287fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 9297fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 9307fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 931dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 932768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, 933cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 934eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 935eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 9361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { 937dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 938dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 939dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 940dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 941dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 942dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 9432a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 9442a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 945dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 946dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 947dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 948dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 949dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 950dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 951dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 952cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 9532a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 9542a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 955cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 956dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 957dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 958dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 959dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9602a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9612a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 962cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 963dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 964dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 965dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 966dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9672a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9682a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 969cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 970dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 971dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 972dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 973dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 974dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9752a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9762a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 9772a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 9782a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 979dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 980dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 98187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunction(D) || !hasFunctionProto(D)) { 982883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 983883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 984dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 985dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 986dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 98707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 98807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 98987c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 99087c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 991dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 9925f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Module = AL.getParameterName()->getName(); 993dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 994dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 995dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 996dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 997dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 9985f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> OwnershipArgs; 999dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10002a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 10012a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 1002dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10037a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 1004dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1005dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1006dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1007dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 1008dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 1009dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1010dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1011dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1012dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 1013dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1014dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 1015dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 1016dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 1017dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1018dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1019dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 102007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 102107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 102207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 102307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 102407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 102507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 102607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 102707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 102807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1029dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 1030cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 1031cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 1032dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 103387c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x); 1034dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 1035dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 1036dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1037cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 1038dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 1039dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1040dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1041dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1042dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1043dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1044cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 1045dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1046dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 10477a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 1048dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1049dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1050dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1051dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1052dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 1053dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1054dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1055dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1056dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1057dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1058dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 10592a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 10602a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 1061dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 1062dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1063dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 1064cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 106587c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<OwnershipAttr>(), 106687c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<OwnershipAttr>(); 1067cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 1068cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 1069cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 1070cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 1071cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 1072cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 1073cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 1074dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1075dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1076dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1077dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1078dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 1079dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1080dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1081dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 1082dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 1083dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 1084cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1085cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 1086cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1087cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 1088dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1089cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 109087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 1091cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 1092dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 1093dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1094332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 1095332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 1096332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 1097332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 1098332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 1099332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 1100332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1101332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1102332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 1103332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 1104332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 1105332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1106332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1107332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 1108332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 1109332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1110332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 111111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 111211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 111311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { 111511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 111611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 111711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 111811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 111911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 112011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 112187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 1122332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1123883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1124332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 1125332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1126332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 112787c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1128332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 112911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 113011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 113111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 113211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 113311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 113411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 113511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 113611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 113711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 113811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 113987c44604325578b8de07d768391c1c9432404f5aChandler Carruth const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); 11407a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 11417a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 1142332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 11437a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 114411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 114511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 114611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 114711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 114811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 114911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 115011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 115111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 115211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 115311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 115411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 115511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 115611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 115711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 115811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 115911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 116011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 116111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 116211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 116311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1164332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 1165332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 116611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 116711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 116811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 116911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 117011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 117111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 117211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 117311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 11747a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 117511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 117611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 117711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11785cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 117911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 118011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 118111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 118211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 118311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 118411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 1185768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1186f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 118711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 118811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1189768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); 119011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 119111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11921b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 11936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1194545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 11953c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1198bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11997a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 12006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 12016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1202bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12035cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1204fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 12053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 12066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1208bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1209bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { 1210f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 1211f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 1212f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 1213f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 12146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 1215bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1216768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1217f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 12186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1221dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 12221731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1223dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1224dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 122587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1226dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1227883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 1228dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1229dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 1230dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 1231768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); 1232dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 1233dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 12341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlwaysInlineAttr(Sema &S, Decl *D, 12351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1236dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1237831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 12383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1239af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 1240af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 12415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 124287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 12435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1244883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 12455bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 12465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1247bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1248768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); 1249af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 1250af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 12511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1252dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1253831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 125476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 125576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 125676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 12571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 12602cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 1261768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); 12622cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 12632cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 1264fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 1265fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 12662cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 126776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 126876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 12691b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 127034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 12711731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 127234c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 127334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 1274768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); 127534c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 127634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 12771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 127856aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 127987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1280768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); 1281722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1282722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1283883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1284a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1285a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 12861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCommonAttr(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) CommonAttr(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 handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { 129687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 1297711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1298711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 1299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 130087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 1301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1302883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 1303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 1304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1306768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); 1307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 1308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1309711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 1310831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (attr.hasParameterOrArguments()) { 1311711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1312711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 1313711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 1314711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1315711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1316711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 1317b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 1318b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, 13201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1321b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1322b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 1323b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 1324b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13251731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 0)) 13261731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return; 1327b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 132887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { 132987c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *VD = dyn_cast<ValueDecl>(D); 13303ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 13313ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 1332e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 1333e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 1334b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 1335883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1336b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 133719c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 13386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1339b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1340768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); 13416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 134335cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 13441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { 134535cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 134635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 134735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 1348f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 1349f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 1350f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 1351f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 1352f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 135335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 135435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 135535cc9627340b15232139b3c43fcde5973e7fad30John Thompson 135635cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 135735cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 135835cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 135935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 136035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 136135cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 136235cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 136335cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 136435cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 136535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 136635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 136735cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 136887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<RecordDecl>(D)) { 136935cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1370883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 137135cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 137235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 137335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 137487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (D->getAttr<VecReturnAttr>()) { 137535cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 137635cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 137735cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 137835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 137987c44604325578b8de07d768391c1c9432404f5aChandler Carruth RecordDecl *record = cast<RecordDecl>(D); 138001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 138101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 138201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 138301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 138401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 138501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 138601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 138701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 138801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 138901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 139001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 139101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1392f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 1393f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 139401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 139501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 139601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 139701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 139801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 139901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 140001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1401768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); 140235cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 140335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 14041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { 140587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { 1406bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1407883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 1408bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1409bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 1410bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 1411bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 1412bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 14131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 141473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 1415831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 14163c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 141773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 141873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1419bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 142087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && 142187c44604325578b8de07d768391c1c9432404f5aChandler Carruth !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { 1422fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1423883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 142473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 142573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1426bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1427768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); 142873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 142973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 1430f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindolastatic void handleReturnsTwiceAttr(Sema &S, Decl *D, 1431f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola const AttributeList &Attr) { 1432f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola // check the attribute arguments. 1433f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (Attr.hasParameterOrArguments()) { 1434f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1435f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1436f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1437f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1438f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (!isa<FunctionDecl>(D)) { 1439f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1440f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola << Attr.getName() << ExpectedFunction; 1441f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1442f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1443f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1444f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); 1445f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola} 1446f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 14471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1448b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 1449831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 1450b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1451b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1452b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1453bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 145487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 1455186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 1456b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 1457b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1458b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 145987c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (!isFunctionOrMethod(D)) { 1460b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1461883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1462b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1463b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1464bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1465768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); 1466b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 1467b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 14681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14693068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1470bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1471bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 14723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1473bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 14753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 14763068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 14777a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 14783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1479ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1480ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1481fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 14823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 14833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 14863068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1487bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 148887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1489fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1490883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 14913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1494768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, 1495f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 14963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 14973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 14981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1500bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1501bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 15023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1503bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 15063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 15077a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 15083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1509ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1510ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1511fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15123c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 15133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 15163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1517bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 151887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1519fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1520883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1524768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, 1525f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 15263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 15273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1529951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1530951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1531bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1532c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1533c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1534951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1535c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 15365f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1537951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1538951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1539c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1540951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1541951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1542c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1543c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1544951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 15456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1546bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1547768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); 15486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1551951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1552951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1553bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1554bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1555bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1556951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1557c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 15585f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1559951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1560951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1561c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1562951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1563c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1564c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1565c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1566951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1567c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1568768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); 1569bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1570bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1571742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanianstatic void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, 1572742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian const AttributeList &Attr) { 1573742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1574742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (NumArgs > 0) { 1575742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1576742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian return; 1577742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 1578742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1579742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( 1580768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis Attr.getRange(), S.Context)); 1581742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian} 1582742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 15831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAvailabilityAttr(Sema &S, Decl *D, 15841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 15850a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor IdentifierInfo *Platform = Attr.getParameterName(); 15860a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor SourceLocation PlatformLoc = Attr.getParameterLoc(); 15870a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15885f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef PlatformName 15890a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 15900a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (PlatformName.empty()) { 15910a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 15920a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << Platform; 15930a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15940a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 15950a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 15960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15970a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 15980a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 15990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 1600b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor bool IsUnavailable = Attr.getUnavailableLoc().isValid(); 16010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1602c90df6a0ad61041e976e0136c29e6d57b17cba3dDouglas Gregor // Ensure that Introduced <= Deprecated <= Obsoleted (although not all 16030a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 16040a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Deprecated.isValid() && 16053b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Deprecated.Version)) { 16060a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 16070a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << PlatformName << Deprecated.Version.getAsString() 16080a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 16090a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16100a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16110a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16120a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Obsoleted.isValid() && 16133b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Obsoleted.Version)) { 16140a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 16150a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16160a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 16170a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16180a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16190a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16200a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Deprecated.isValid() && Obsoleted.isValid() && 16213b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Deprecated.Version <= Obsoleted.Version)) { 16220a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) 16230a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16240a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << Deprecated.Version.getAsString(); 16250a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16260a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16270a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1628768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, 16290a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Platform, 16300a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Introduced.Version, 16310a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Deprecated.Version, 1632b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Obsoleted.Version, 1633b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor IsUnavailable)); 16340a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 16350a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 16376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 16381731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 1)) 16396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1640bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16417a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 16426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 16436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1644bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16455cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1646fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 16473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 16486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1650bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16515f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef TypeStr = Str->getString(); 1652cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1653bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1654c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1655cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1656c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1657cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1658c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1659cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1660c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1661cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 16626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 166308631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 16646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1666bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1667768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); 16686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, 16711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1672d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1673d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 167487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1675883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1676d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1677d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1678d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 167987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { 168087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { 168187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1682d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1683d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 168487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1685d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 168687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 1687d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1688d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1689d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 16905f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef param = Attr.getParameterName()->getName(); 1691d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1692d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1693d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1694d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1695d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1696d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1697d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1698d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1699d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1700d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1701d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1702d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1703d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1704d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1705d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1706d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 170787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); 1708d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1709d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1710d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1711f85e193739c953358c865005855253af4f68a497John McCall if (family == ObjCMethodFamilyAttr::OMF_init && 1712f85e193739c953358c865005855253af4f68a497John McCall !method->getResultType()->isObjCObjectPointerType()) { 1713f85e193739c953358c865005855253af4f68a497John McCall S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) 1714f85e193739c953358c865005855253af4f68a497John McCall << method->getResultType(); 1715f85e193739c953358c865005855253af4f68a497John McCall // Ignore the attribute. 1716f85e193739c953358c865005855253af4f68a497John McCall return; 1717f85e193739c953358c865005855253af4f68a497John McCall } 1718f85e193739c953358c865005855253af4f68a497John McCall 1719768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), 1720f85e193739c953358c865005855253af4f68a497John McCall S.Context, family)); 1721d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1722d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 17231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCExceptionAttr(Sema &S, Decl *D, 17241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 17251731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 17260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 1727bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17280db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 17290db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 17300db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 17310db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 17320db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1733bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1734768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); 17350db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 17360db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 17371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { 1738fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 17392b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1740fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1741fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1742162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 1743fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1744fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 17456217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1746fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1747fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1748fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1749fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1750768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); 1751fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1752fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1753bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 17541b03c8719e2e45cf2769430335d7e71f18e6634aChandler CarruthhandleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1755f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 17562b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1757f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1758f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1759f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1760f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1761f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1762f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1763f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1764f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1765768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); 1766f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1767f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 17681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1769bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1770fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 17713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 17729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 17739eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1774bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17759eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 17763c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 17779eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 17789eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1779bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1780cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 178192e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 17829eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 17839eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1784fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 17853c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 17869eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 17879eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1788bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1789768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); 17909eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 17919eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 17921b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1793770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1794770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1795bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1796770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1797bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1798bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17993323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned sentinel = 0; 1800770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 18017a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1802770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1803ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1804ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1805fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1807770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1808770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1809bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18103323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if (Idx.isSigned() && Idx.isNegative()) { 1811fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1812fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1813770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1814770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 18153323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall 18163323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall sentinel = Idx.getZExtValue(); 1817770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1818770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 18193323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned nullPos = 0; 1820770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 18217a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1822770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1823ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1824ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1825fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1827770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1828770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1829770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1830bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18313323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { 1832770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1833770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1834fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1835fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1836770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1837770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1838770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1839770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 184087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 18413323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall const FunctionType *FT = FD->getType()->castAs<FunctionType>(); 1842897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1843897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1844897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1845897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1846bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1847897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 18483bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1849770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1850bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 185187c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 1852770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 18533bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1854770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 18552f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 185687c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (isa<BlockDecl>(D)) { 1857bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1858bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 18592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 186087c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 18612f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1862daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 186387c44604325578b8de07d768391c1c9432404f5aChandler Carruth const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) 1864f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 18652f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 18663bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 18673bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 18682f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 18692f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1870ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 18712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1872883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 18732f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 18742f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1875770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1876fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1877883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1878770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1879770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1880768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, 1881f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1882770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1883770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 18841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { 1885026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 18861731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1887026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1888026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1889f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1890026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1891883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1892026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1893026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1894bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1895f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1896f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1897f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1898f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1899f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1900f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1901f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1902f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1903f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1904f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1905f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1906f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1907768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); 1908026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1909026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 19101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { 19116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 191287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.hasParameterOrArguments()) { 191387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19166e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 191787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 191887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 191987c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedVariableOrFunction; 1920f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1921f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1922f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 192387c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1924332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1925332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 1926332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 192787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); 19286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1930bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1931768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 19326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { 19356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 19361731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 19376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19381731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 19396e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 19406e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 19416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 19420a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 19430a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 19440a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 19450a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 19460a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 1947def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || 1948bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor (S.Context.getTargetInfo().getTriple().isOSDarwin() && 1949def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor isa<ObjCInterfaceDecl>(D))) { 1950def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor // Nothing to warn about here. 1951def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor } else 1952c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1953883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 19546e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 19556e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 19576e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1958768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); 19596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 19606e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 19611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleReqdWorkGroupSize(Sema &S, Decl *D, 19621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 19636f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 19641731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 3)) 19656f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 19666f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 19676f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 19686f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 19697a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 19706f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1971ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1972ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 19736f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 19746f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 19756f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 19766f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 19776f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 19786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1979768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, 1980cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 19816f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 19826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 19836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 19841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { 198517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 19861731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 198717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 198817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 198917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 199017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 19917a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1992797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 199317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1994797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 199517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 199617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 19971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1998797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1999bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); 2000a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 2001a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 2002a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 2003797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 2004797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 20051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2006a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 2007a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 2008a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 2009a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 2010a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 2011a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 2012768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, 2013f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 201417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 201517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 20166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2019831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 20203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2023b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 202487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { 2025b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2026ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2027b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2028768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); 2029b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 20306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 20316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2033232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 2034831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 20353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2036232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2037232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 2038bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 203987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { 2040b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2041ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2042b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2043768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); 2044b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2045232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2046232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 20471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2048232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 20491731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2050232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2051bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2052768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); 2053232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2054232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 20551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2056bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 2057f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2058f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2059f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2060bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2061f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 2062f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2063f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2064f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2065bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 206687c44604325578b8de07d768391c1c9432404f5aChandler Carruth VarDecl *VD = dyn_cast<VarDecl>(D); 2067bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2068f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 2069f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 2070f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2071f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2072bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2073f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 2074c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 2075f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 2076f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 2077f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 2078f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 2079f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 2080f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 2081f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2082f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2083bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2084f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 2085f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 2086f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2087f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 2088f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2089f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2090f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2091f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2092f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 2093f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2094f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 2095f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2096f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2097f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2098bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 209989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 210089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 210189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 210289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 2103b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 2104b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 2105f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 210689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 210789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 210889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 210989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 2110bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2111768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); 2112223ae5c26654e5fd7dacdafe43aff28a096ba63bArgyrios Kyrtzidis S.MarkDeclarationReferenced(Attr.getParameterLoc(), FD); 2113f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 2114f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2115bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 2116bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 21171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { 21181731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 21195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21201731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 212187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 21225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2123883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 21245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 212607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 212707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 212807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 212987c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 213087c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 21315b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 213207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 21335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 21347a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 21355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 2136ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2137ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 21385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 21395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 21405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2142bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 21445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 21455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 21465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2148bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 2150bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 215107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 215207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 215307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 215407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 215507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 215607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 215707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 215807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 215907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 21605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 216187c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 2162bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21635b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 21645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 21655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 21665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 21676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 21685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 21695b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2170bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 21715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 21725b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 217487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Ty = getFunctionOrMethodResultType(D); 21755b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 21765b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 21775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 21786217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 21795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 21805b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 2181bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 21825b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 21835b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2184bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 2185bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2186768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, 218707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 21885b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 21895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 21902b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 21912b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 21922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 21932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 21942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 21953c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 21962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 21972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 21982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 21992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 22002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 22015f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic FormatAttrKind getFormatAttrKind(StringRef Format) { 22022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 22032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 22042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 22052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 22062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 22072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 22082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 22092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 22102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 22112b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 22122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 22132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 2214cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 2215cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 22162b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 22172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2218bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 2219bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 22203c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 22213c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 22222b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 22232b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 22242b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2225521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 2226521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 22271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleInitPriorityAttr(Sema &S, Decl *D, 22281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 2229521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 2230521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2231521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2232521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2233521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 223487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { 2235b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2236b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2237b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2238b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 223987c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = dyn_cast<VarDecl>(D)->getType(); 2240b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 2241b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 2242b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 2243b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2244b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2245b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2246b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 2247b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2248521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 2249521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2250521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2251521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2252521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 22537a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 2254b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2255521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 2256521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 2257521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 2258521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 2259521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 2260521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2261521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2262521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 22639f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 2264521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 2265521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 2266521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 2267521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2268521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2269521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2270768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, 2271f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 2272521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 2273521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 2274bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 2275bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 22761b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { 22776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2278545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 2279fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 22803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 22816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2284545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 22853c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 22866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 228987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { 2290fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2291883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 229507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 229607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 229787c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 229887c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 22996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 23006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23015f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Format = Attr.getParameterName()->getName(); 23026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 23042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 23052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 23062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 23072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 23082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 23093c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 23103c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 23113c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 23123c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 23132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 2314fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 231501eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 23166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 23207a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 2321803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 2322ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2323ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 2324fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 23266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 2330fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 23313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 23326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 23366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 2337bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23384a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 23394a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 234007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 234107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 234207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 23434a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 23444a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 23454a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 23464a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 234987c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 23506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23512b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 2352085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 2353fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2354fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 2355085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 2356085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 23572b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 2358390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 2359390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 2360803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 2361390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2362fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2363fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 23646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2365bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 23666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 23676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 2368390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2369fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2370fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 23716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 23757a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 2376803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 2377ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 2378ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 2379fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 23816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 23856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 238687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethodVariadic(D)) { 23876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 23886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 238987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); 23906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23943c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 23953c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 23962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 23976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 2398fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 2399fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 24006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 24036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 2404fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 24053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 24066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2409b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // Check whether we already have an equivalent format attribute. 2410b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor for (specific_attr_iterator<FormatAttr> 241187c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<FormatAttr>(), 241287c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<FormatAttr>(); 2413b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor i != e ; ++i) { 2414b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor FormatAttr *f = *i; 2415b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getType() == Format && 2416b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFormatIdx() == (int)Idx.getZExtValue() && 2417b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFirstArg() == (int)FirstArg.getZExtValue()) { 2418b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // If we don't have a valid location for this attribute, adopt the 2419b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // location. 2420b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getLocation().isInvalid()) 2421ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis f->setRange(Attr.getRange()); 2422b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor return; 2423b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2424b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2425b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 2426768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, 2427cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 24282b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 24296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleTransparentUnionAttr(Sema &S, Decl *D, 24321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 24336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 24341731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 24356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24361731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 24376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 24390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 244087c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); 24410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 24420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 24430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 244487c44604325578b8de07d768391c1c9432404f5aChandler Carruth RD = dyn_cast<RecordDecl>(D); 24450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 24460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 2447fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2448883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 24496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24525e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (!RD->isCompleteDefinition()) { 2453bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 24540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 24550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 24560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 24570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 245817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 245917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 24600c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 24610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 24620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 24630c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2464bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 24650c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 24660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 246790cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 2468bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 246990cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 247090cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 24710c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 24720c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2473bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 24740c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 24750c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 24760c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 24770c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 24780c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 24790c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 24800c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 24810c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 2482bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 24830c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 2484bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 24850c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 24860c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 24870c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 2488bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 24890c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 24900c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 2491bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 2492bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 2493bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 24946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2495768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); 24966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { 24996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 25001731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 25016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25021731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 25037a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2504797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 2505bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 25076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 25086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 2509797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 25106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 251277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 251377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Don't duplicate annotations that are already set. 251477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge for (specific_attr_iterator<AnnotateAttr> 251577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge i = D->specific_attr_begin<AnnotateAttr>(), 251677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { 251777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge if ((*i)->getAnnotation() == SE->getString()) 251877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge return; 251977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge } 2520768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, 2521f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 25226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 25236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 25256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2526545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 25273c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 25286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2530bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2531bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 2532bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 2533bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 25346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2535545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 2536768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); 25374ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 25384ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 25394ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2540768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); 25414ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 25424ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2543768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { 25444ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 25454ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 2546768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); 25476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2549bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2550768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis SourceLocation AttrLoc = AttrRange.getBegin(); 2551cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 255249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 25534ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 25544ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 25554ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 255649e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 255749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 2558396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 25594ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 25604ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 2561396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 2562396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 2563396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 2564768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); 2565cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 2566cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 2567768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { 2568cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 2569cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 2570768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); 2571cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 25726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2573fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2574d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth/// handleModeAttr - This attribute modifies the width of a decl with primitive 2575bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 2576fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 2577bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2578bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2579bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 25801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2581fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2582fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2583fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2584fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 25851731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2586fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 25871731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2588fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2589fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2590fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 25910b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2592fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2593fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2594210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 25955f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str = Attr.getParameterName()->getName(); 2596fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2597fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2598210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2599210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2600fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2601fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2602fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 260373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2604210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2605fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 260673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 260773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 260873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 260973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 261073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 261173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 261273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 261373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 261473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 261573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 261673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 261773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 261873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 261973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 262073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 262173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2622fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2623fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2624fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2625fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2626210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 2627bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2628210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 2629bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getCharWidth(); 2630fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2631fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2632210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 2633bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2634fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2635fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2636fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2637fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2638162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) 2639fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2640fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2641fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2642fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2643fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2644768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << "mode" << Attr.getRange(); 2645fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2646fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 264773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2648183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 264973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 265073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 26512ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 265273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 265373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 265473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 265573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 265673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 265773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 265873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 265973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 266073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2661390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2662390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2663390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2664390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2665f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2666f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2667fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2668fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2669fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 26703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2671fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2672fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 26733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2674fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2675fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 267673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 267773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 267873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 267973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2680fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 26810b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2682fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 26830b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2684fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2685fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 268673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 268773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 268873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 268973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2690fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 26910b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2692fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 26930b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2694fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2695fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2696fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 26970b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2698fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 26990b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2700fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 27010b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2702fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2703fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2704fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 27050b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2706fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2707bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2708aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2709aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2710aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2711fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2712bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2713aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2714aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2715aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2716fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 271773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 271873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 271973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2720f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2721f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2722f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2723f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2724f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2725f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2726f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2727f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2728f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 272973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2730fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2731fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 273273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 273373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2734fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2735fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2736fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2737162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 2738ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2739a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2740ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2741fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2742fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 27430744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 27441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2745d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 27461731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2747d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2748e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 274987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 2750d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2751883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2752d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2753d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2754bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2755768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); 2756d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2757d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 27581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 27595bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 27601731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 27615bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 27621731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2763bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 276487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 27655bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2766883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 27675bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 27685bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2769bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2770768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); 27715bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 27725bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 27731b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, 27741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 27757255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 27761731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 27777255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 27781731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 27797255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 278087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 27817255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2782883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 27837255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 27847255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 27857255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2786768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), 2787f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 27887255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 27897255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 27901b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2791ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2792ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2793831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 2794ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2795ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2796ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2797ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 279887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2799ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2800883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2801ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2802ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2803ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2804768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); 2805ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2806ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2807ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2808ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2809ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2811ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2812ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2813ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2814ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2815ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2816ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2817ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 281887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 2819ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2820883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2821ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2822ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2823ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2824768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); 2825ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2826ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2827ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2828ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2829ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28301b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2831ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2832ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 28331731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2834ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2835ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 283687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2837ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2838883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2839ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2840ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2841ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 284287c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *FD = cast<FunctionDecl>(D); 28432c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2844723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 28452c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 28462c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 28472c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 28482c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 28492c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 28502c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 28512c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 28522c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 28532c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 28542c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 28552c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 28562c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2857768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); 2858ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2859ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2860ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2861ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2862ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2864ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2865ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 28661731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2867ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 28681731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2869ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 287087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2871ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2872883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2873ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2874ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2875ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2876768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); 2877ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2878ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2879ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2880ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2881ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2883ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2884ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 28851731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2886ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 28871731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2888ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 288987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2890ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2891883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2892ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2893ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2894ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2895768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); 2896ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2897ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2898ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2899ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2900ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 290226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 29031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 290426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 2905bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 290687c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 2907c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 290826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2909883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 291026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 291126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2912bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 29130130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2914cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2915c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2916c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2917bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2918768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); 291926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 292026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 29211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { 292287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 2923711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 292487c44604325578b8de07d768391c1c9432404f5aChandler Carruth // Diagnostic is emitted elsewhere: here we store the (valid) Attr 2925e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2926711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 292787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckCallingConvAttr(Attr, CC)) 2928711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2929e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 293087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 293187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 293287c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 2933711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2934711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2935711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 293687c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 2937e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2938768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); 2939e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2940e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2941768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); 2942e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2943f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2944768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); 294504633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2946e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2947768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); 2948e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 294952fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2950768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); 295152fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2952414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 295387c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *Arg = Attr.getArg(0); 2954414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 29555cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 295687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2957414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 295887c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2959414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 2960414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2961414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 29625f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 2963414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PcsAttr::PCSType PCS; 2964414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") 2965414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS; 2966414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else if (StrRef == "aapcs-vfp") 2967414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS_VFP; 2968414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else { 296987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_invalid_pcs); 297087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2971414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 2972414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2973414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 2974768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); 2975414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2976e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2977e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2978e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2979e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2980e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2981e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 29821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ 298356aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 2984768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); 2985f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 2986f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 2987711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 2988711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2989711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2990711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2991831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if ((attr.getNumArgs() != 0 && 2992831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || 2993831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek attr.getParameterName()) { 2994711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2995711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2996711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2997ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 299855d3aaf9a537888734762170823daf750ea9036dEli Friedman 2999414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // TODO: diagnose uses of these conventions on the wrong target. Or, better 3000414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // move to TargetAttributesSema one day. 3001711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 3002711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 3003711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 3004711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 3005711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 3006711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 3007414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 3008414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Expr *Arg = attr.getArg(0); 3009414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 30105cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3011414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3012414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 3013414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr.setInvalid(); 3014414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return true; 3015414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3016414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 30175f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3018414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") { 3019414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS; 3020414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3021414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } else if (StrRef == "aapcs-vfp") { 3022414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS_VFP; 3023414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3024414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3025414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // FALLS THROUGH 3026414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3027711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: llvm_unreachable("unexpected attribute kind"); return true; 3028711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3029711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3030711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3031711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3032711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 30331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { 303487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3035711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3036711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 303787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckRegparmAttr(Attr, numParams)) 3038711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3039711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 304087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 304187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 304287c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3043ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 3044ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 304555d3aaf9a537888734762170823daf750ea9036dEli Friedman 3046768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); 3047711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3048711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3049711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 3050711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 305187c44604325578b8de07d768391c1c9432404f5aChandler Carruthbool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { 305287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.isInvalid()) 3053711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3054711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 305587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 1) { 305687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 305787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3058711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3059711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3060711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 306187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *NumParamsExpr = Attr.getArg(0); 306255d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 3063ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 3064711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 306587c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 306655d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 306787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3068711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 306955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 307055d3aaf9a537888734762170823daf750ea9036dEli Friedman 3071bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getRegParmMax() == 0) { 307287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 307355d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 307487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3075711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 307655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 307755d3aaf9a537888734762170823daf750ea9036dEli Friedman 3078711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 3079bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (numParams > Context.getTargetInfo().getRegParmMax()) { 308087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 3081bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); 308287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3083711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 308455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 308555d3aaf9a537888734762170823daf750ea9036dEli Friedman 3086711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3087ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 3088ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 30891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ 30907b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 30917b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 30927b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 3093bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 3094bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 30957b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 30967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 30977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 309887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 30997b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3100883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 31017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31027b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31037b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 31047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 31057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 31067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 31077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 31087b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 31097b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 31107b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 31117b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31127b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31137b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 31147b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 31157b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 31167b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 31177b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 31187b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 31197b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 31207b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 31217b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 31227b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 31237b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31247b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31257b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 3126768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, 31277b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 31287b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 31297b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 31307b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 31317b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31327b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 31337b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 31340744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 3135b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 3136b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 3137b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3138c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 31396c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 31406c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isObjCObjectPointerType() || 31416c73a2975ba9112787380abd878876336957b3f6Douglas Gregor S.Context.isObjCNSObjectType(type); 3142c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3143c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 31446c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 31456c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isPointerType() || 31466c73a2975ba9112787380abd878876336957b3f6Douglas Gregor isValidSubjectOfNSAttribute(S, type); 3147c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3148c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 31491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 315087c44604325578b8de07d768391c1c9432404f5aChandler Carruth ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); 3151c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 315287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3153768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedParameter; 3154c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3155c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3156c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3157c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 315887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getKind() == AttributeList::AT_ns_consumed) { 3159c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 3160c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3161c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 3162c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 3163c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3164c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3165c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3166c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 316787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 3168768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << cf; 3169c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3170c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3171c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3172c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 3173768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); 3174c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 3175768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); 3176c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3177c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 31781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumesSelfAttr(Sema &S, Decl *D, 31791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 318087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 318187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3182768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedMethod; 3183c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3184c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3185c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3186768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); 3187c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3188c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 31891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSReturnsRetainedAttr(Sema &S, Decl *D, 31901b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3191b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3192c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 3193bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 319487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 3195c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 319687c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 3197831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian returnType = PD->getType(); 319887c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (S.getLangOptions().ObjCAutoRefCount && hasDeclarator(D) && 319987c44604325578b8de07d768391c1c9432404f5aChandler Carruth (Attr.getKind() == AttributeList::AT_ns_returns_retained)) 3200f85e193739c953358c865005855253af4f68a497John McCall return; // ignore: was handled as a type attribute 320187c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 3202c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 32035dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 320487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3205768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() 3206883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 3207b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3208b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 3209bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3210c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 3211c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 321287c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3213c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall default: llvm_unreachable("invalid ownership attribute"); return; 3214c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3215c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 3216c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 3217c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 3218c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3219c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3220c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3221c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 3222c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 3223c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 3224c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3225c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3226c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3227c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3228c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 322987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3230768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; 3231bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 32325dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 3233bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 323487c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3235b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 3236b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("invalid ownership attribute"); 3237c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3238768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), 3239c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 3240c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 324131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3242768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), 3243f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 324431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 324531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 3246768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), 3247f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 324831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 3249b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 3250768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), 3251f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3252b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3253b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3254768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), 3255f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3256b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3257b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 3258b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 3259b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3260dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCallstatic void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, 3261dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall const AttributeList &attr) { 3262dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall SourceLocation loc = attr.getLoc(); 3263dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3264dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); 3265dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3266dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall if (!isa<ObjCMethodDecl>(method)) { 3267dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::err_attribute_wrong_decl_type) 3268dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc, loc) << attr.getName() << 13 /* methods */; 3269dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3270dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3271dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3272dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Check that the method returns a normal pointer. 3273dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall QualType resultType = method->getResultType(); 3274f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian 3275f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian if (!resultType->isReferenceType() && 3276f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian (!resultType->isPointerType() || resultType->isObjCRetainableType())) { 3277dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3278dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc) 3279dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; 3280dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3281dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Drop the attribute. 3282dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3283dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3284dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3285dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall method->addAttr( 3286768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); 3287dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall} 3288dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 32898dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall/// Handle cf_audited_transfer and cf_unknown_transfer. 32908dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCallstatic void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { 32918dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (!isa<FunctionDecl>(D)) { 32928dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 32938dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getRange() << A.getName() << 0 /*function*/; 32948dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 32958dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 32968dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 32978dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall bool IsAudited = (A.getKind() == AttributeList::AT_cf_audited_transfer); 32988dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 32998dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // Check whether there's a conflicting attribute already present. 33008dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Attr *Existing; 33018dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 33028dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFUnknownTransferAttr>(); 33038dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 33048dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFAuditedTransferAttr>(); 33058dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33068dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (Existing) { 33078dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) 33088dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getName() 33098dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") 33108dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getRange() << Existing->getRange(); 33118dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 33128dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33138dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 33148dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // All clear; add the attribute. 33158dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 33168dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 33178dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); 33188dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 33198dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 33208dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); 33218dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 33228dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall} 33238dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3324fe98da0fa352462c02db037360788748f95466f7John McCallstatic void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, 3325fe98da0fa352462c02db037360788748f95466f7John McCall const AttributeList &Attr) { 3326fe98da0fa352462c02db037360788748f95466f7John McCall RecordDecl *RD = dyn_cast<RecordDecl>(D); 3327fe98da0fa352462c02db037360788748f95466f7John McCall if (!RD || RD->isUnion()) { 3328fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3329fe98da0fa352462c02db037360788748f95466f7John McCall << Attr.getRange() << Attr.getName() << 14 /*struct */; 3330fe98da0fa352462c02db037360788748f95466f7John McCall } 3331fe98da0fa352462c02db037360788748f95466f7John McCall 3332fe98da0fa352462c02db037360788748f95466f7John McCall IdentifierInfo *ParmName = Attr.getParameterName(); 3333fe98da0fa352462c02db037360788748f95466f7John McCall 3334fe98da0fa352462c02db037360788748f95466f7John McCall // In Objective-C, verify that the type names an Objective-C type. 3335fe98da0fa352462c02db037360788748f95466f7John McCall // We don't want to check this outside of ObjC because people sometimes 3336fe98da0fa352462c02db037360788748f95466f7John McCall // do crazy C declarations of Objective-C types. 3337fe98da0fa352462c02db037360788748f95466f7John McCall if (ParmName && S.getLangOptions().ObjC1) { 3338fe98da0fa352462c02db037360788748f95466f7John McCall // Check for an existing type with this name. 3339fe98da0fa352462c02db037360788748f95466f7John McCall LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), 3340fe98da0fa352462c02db037360788748f95466f7John McCall Sema::LookupOrdinaryName); 3341fe98da0fa352462c02db037360788748f95466f7John McCall if (S.LookupName(R, Sc)) { 3342fe98da0fa352462c02db037360788748f95466f7John McCall NamedDecl *Target = R.getFoundDecl(); 3343fe98da0fa352462c02db037360788748f95466f7John McCall if (Target && !isa<ObjCInterfaceDecl>(Target)) { 3344fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); 3345fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(Target->getLocStart(), diag::note_declared_at); 3346fe98da0fa352462c02db037360788748f95466f7John McCall } 3347fe98da0fa352462c02db037360788748f95466f7John McCall } 3348fe98da0fa352462c02db037360788748f95466f7John McCall } 3349fe98da0fa352462c02db037360788748f95466f7John McCall 3350fe98da0fa352462c02db037360788748f95466f7John McCall D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, 3351fe98da0fa352462c02db037360788748f95466f7John McCall ParmName)); 3352fe98da0fa352462c02db037360788748f95466f7John McCall} 3353fe98da0fa352462c02db037360788748f95466f7John McCall 33541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCOwnershipAttr(Sema &S, Decl *D, 33551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 335687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3357f85e193739c953358c865005855253af4f68a497John McCall 335887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3359768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << 12 /* variable */; 3360f85e193739c953358c865005855253af4f68a497John McCall} 3361f85e193739c953358c865005855253af4f68a497John McCall 33621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, 33631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 336487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { 336587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3366768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << 12 /* variable */; 3367f85e193739c953358c865005855253af4f68a497John McCall return; 3368f85e193739c953358c865005855253af4f68a497John McCall } 3369f85e193739c953358c865005855253af4f68a497John McCall 337087c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *vd = cast<ValueDecl>(D); 3371f85e193739c953358c865005855253af4f68a497John McCall QualType type = vd->getType(); 3372f85e193739c953358c865005855253af4f68a497John McCall 3373f85e193739c953358c865005855253af4f68a497John McCall if (!type->isDependentType() && 3374f85e193739c953358c865005855253af4f68a497John McCall !type->isObjCLifetimeType()) { 337587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) 3376f85e193739c953358c865005855253af4f68a497John McCall << type; 3377f85e193739c953358c865005855253af4f68a497John McCall return; 3378f85e193739c953358c865005855253af4f68a497John McCall } 3379f85e193739c953358c865005855253af4f68a497John McCall 3380f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); 3381f85e193739c953358c865005855253af4f68a497John McCall 3382f85e193739c953358c865005855253af4f68a497John McCall // If we have no lifetime yet, check the lifetime we're presumably 3383f85e193739c953358c865005855253af4f68a497John McCall // going to infer. 3384f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) 3385f85e193739c953358c865005855253af4f68a497John McCall lifetime = type->getObjCARCImplicitLifetime(); 3386f85e193739c953358c865005855253af4f68a497John McCall 3387f85e193739c953358c865005855253af4f68a497John McCall switch (lifetime) { 3388f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_None: 3389f85e193739c953358c865005855253af4f68a497John McCall assert(type->isDependentType() && 3390f85e193739c953358c865005855253af4f68a497John McCall "didn't infer lifetime for non-dependent type?"); 3391f85e193739c953358c865005855253af4f68a497John McCall break; 3392f85e193739c953358c865005855253af4f68a497John McCall 3393f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Weak: // meaningful 3394f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Strong: // meaningful 3395f85e193739c953358c865005855253af4f68a497John McCall break; 3396f85e193739c953358c865005855253af4f68a497John McCall 3397f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_ExplicitNone: 3398f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Autoreleasing: 339987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) 3400f85e193739c953358c865005855253af4f68a497John McCall << (lifetime == Qualifiers::OCL_Autoreleasing); 3401f85e193739c953358c865005855253af4f68a497John McCall break; 3402f85e193739c953358c865005855253af4f68a497John McCall } 3403f85e193739c953358c865005855253af4f68a497John McCall 340487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) 3405768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); 3406f85e193739c953358c865005855253af4f68a497John McCall} 3407f85e193739c953358c865005855253af4f68a497John McCall 3408f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 3409f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 341011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_dllexport || 341111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_uuid; 341211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 341311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 341411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 341511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 341611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 341711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 34181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { 341962ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { 342011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 34211731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 342211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 34231731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 342411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 342511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 34265cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3427d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3428d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 3429d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3430d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3431d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 34325f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3433d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3434d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 3435d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 3436d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3437d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 3438d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 3439d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3440d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3441d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3442d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 3443d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3444d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3445d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3446d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3447d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 3448d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 34495f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::iterator I = StrRef.begin(); 3450f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 3451f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 3452f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 3453f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 3454d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 3455d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 3456d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3457d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3458d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3459d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 3460d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3461d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3462d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3463d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 3464d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 346511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 3466768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, 346711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 3468d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 346911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 3470f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 3471f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 3472b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 34730744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 34740744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 34750744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 34761b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 34771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 347860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 34791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; 34801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; 34811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; 348260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 348360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 348460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 348560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 3486e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 34871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 34881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3489803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 34901b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_IBAction: handleIBAction(S, D, Attr); break; 34911b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_IBOutlet: handleIBOutlet(S, D, Attr); break; 3492857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 34931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleIBOutletCollection(S, D, Attr); break; 3494803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 3495207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 3496ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 34976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 34984211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 34994211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 3500bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 3501bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 3502803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 350360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 350460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 350560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 350660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 350760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 350860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 35091b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; 35101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; 3511bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 35121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAlwaysInlineAttr (S, D, Attr); break; 3513b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 35141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAnalyzerNoReturnAttr (S, D, Attr); break; 35151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; 35161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; 3517bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 35181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleDependencyAttr (S, D, Attr); break; 35191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; 35201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; 35211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; 35221b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; 35231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; 35243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 35251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleExtVectorTypeAttr(S, scope, D, Attr); 35263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 35271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; 35281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; 35291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; 35301b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; 35317b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 35321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleLaunchBoundsAttr(S, D, Attr); 35337b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 35341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; 35351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; 35361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; 35371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; 35381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; 3539dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 3540dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 3541dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 35421b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOwnershipAttr (S, D, Attr); break; 35431b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; 35441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; 35451b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; 35461b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; 35471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; 3548b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3549b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 35501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCOwnershipAttr(S, D, Attr); break; 3551f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_precise_lifetime: 35521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCPreciseLifetimeAttr(S, D, Attr); break; 3553f85e193739c953358c865005855253af4f68a497John McCall 3554dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall case AttributeList::AT_objc_returns_inner_pointer: 3555dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall handleObjCReturnsInnerPointerAttr(S, D, Attr); break; 3556dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3557fe98da0fa352462c02db037360788748f95466f7John McCall case AttributeList::AT_ns_bridged: 3558fe98da0fa352462c02db037360788748f95466f7John McCall handleNSBridgedAttr(S, scope, D, Attr); break; 3559fe98da0fa352462c02db037360788748f95466f7John McCall 35608dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall case AttributeList::AT_cf_audited_transfer: 35618dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall case AttributeList::AT_cf_unknown_transfer: 35628dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall handleCFTransferAttr(S, D, Attr); break; 35638dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3564b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 3565c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 35661b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; 3567c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 35681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSConsumesSelfAttr(S, D, Attr); break; 3569c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3570c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 357131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 357231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3573b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3574b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 35751b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSReturnsRetainedAttr(S, D, Attr); break; 3576b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 35776f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 35781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleReqdWorkGroupSize(S, D, Attr); break; 35796f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 3580521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 35811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleInitPriorityAttr(S, D, Attr); break; 3582521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 35831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; 35841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_MsStruct: handleMsStructAttr (S, D, Attr); break; 35851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; 35861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; 3587742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian case AttributeList::AT_arc_weakref_unavailable: 3588742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian handleArcWeakrefUnavailableAttr (S, D, Attr); 3589742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian break; 35901b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; 3591f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola case AttributeList::AT_returns_twice: 3592f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola handleReturnsTwiceAttr(S, D, Attr); 3593f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola break; 35941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; 35951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; 35961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); 3597026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 35981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; 35991b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; 36001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; 3601803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 36021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleTransparentUnionAttr(S, D, Attr); 3603803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 36040db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 36051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCExceptionAttr(S, D, Attr); 36060db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 3607d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 36081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCMethodFamilyAttr(S, D, Attr); 3609d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 36101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nsobject: handleObjCNSObject (S, D, Attr); break; 36111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; 36121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; 36131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; 36141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; 36151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; 36161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; 36171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; 36181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; 3619bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 362005f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 362105f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 36227255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 36231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNoInstrumentFunctionAttr(S, D, Attr); 36247255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 362504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 362604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 362704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 3628f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 362952fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3630414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: 36311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleCallConvAttr(S, D, Attr); 363204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 3633f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 36341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOpenCLKernelAttr(S, D, Attr); 3635f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 363611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 36371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleUuidAttr(S, D, Attr); 363811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 3639fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3640fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // Thread safety attributes: 3641fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_guarded_var: 3642fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr); 3643fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3644fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_pt_guarded_var: 3645fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr, /*pointer = */true); 3646fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3647fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_scoped_lockable: 3648fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr, /*scoped = */true); 3649fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3650fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_no_thread_safety_analysis: 3651fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleNoThreadSafetyAttr(S, D, Attr); 3652fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3653fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_lockable: 3654fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr); 3655fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3656db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_guarded_by: 3657db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr); 3658db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3659db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_pt_guarded_by: 3660db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr, /*pointer = */true); 3661db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3662db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_lock_function: 3663db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr, /*exclusive = */true); 3664db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3665db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_locks_required: 3666db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); 3667db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3668db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_trylock_function: 3669db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); 3670db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3671db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_lock_returned: 3672db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockReturnedAttr(S, D, Attr); 3673db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3674db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_locks_excluded: 3675db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksExcludedAttr(S, D, Attr); 3676db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3677db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_lock_function: 3678db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr); 3679db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3680db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_locks_required: 3681db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr); 3682db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3683db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_trylock_function: 3684db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr); 3685db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3686db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_unlock_function: 3687db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleUnlockFunAttr(S, D, Attr); 3688db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3689db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_before: 3690db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */true); 3691db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3692db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_after: 3693db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */false); 3694db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3695fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3696803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 369782d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 369882d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 369982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 37007d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 37017d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 3702803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 3703803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3704803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3705803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 370660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 370760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 370860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 370960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 37101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, 37111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr, 371260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 371360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 371460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 371560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 371660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 371760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 371860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 371960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 372060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 37211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessNonInheritableDeclAttr(S, scope, D, Attr); 372260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 372360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 37241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessInheritableDeclAttr(S, scope, D, Attr); 372560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 372660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 3727803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 3728803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 3729f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 373060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 373160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 373211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 37331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); 373411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 373511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 373611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 373711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 373811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 373960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 374011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 3741dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 374211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 3743803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3744803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3745803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 3746e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Check a list of attributes to see if it 3747e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// contains any decl attributes that we should warn about. 3748e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallstatic void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { 3749e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for ( ; A; A = A->getNext()) { 3750e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Only warn if the attribute is an unignored, non-type attribute. 3751e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->isUsedAsTypeAttr()) continue; 3752e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::IgnoredAttribute) continue; 3753e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3754e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::UnknownAttribute) { 3755e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) 3756e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 3757e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } else { 3758e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) 3759e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 3760e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 3761e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 3762e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 3763e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3764e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Given a declarator which is not being 3765e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// used to build a declaration, complain about any decl attributes 3766e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// which might be lying around on it. 3767e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallvoid Sema::checkUnusedDeclAttributes(Declarator &D) { 3768e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); 3769e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getAttributes()); 3770e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) 3771e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); 3772e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 3773e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3774e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 3775e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 3776900693b715b3832a42ae87157332baece94ccdd8Eli FriedmanNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, 3777900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SourceLocation Loc) { 37787b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 3779e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 3780e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 3781900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FunctionDecl *NewFD; 3782900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Missing call to CheckFunctionDeclaration(). 3783900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Mangling? 3784900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the qualifier info correct? 3785900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the DeclContext correct? 3786900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 3787900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Loc, Loc, DeclarationName(II), 3788900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->getType(), FD->getTypeSourceInfo(), 3789900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SC_None, SC_None, 3790900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isInlineSpecified*/, 3791900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->hasPrototype(), 3792900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isConstexprSpecified*/); 3793900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewD = NewFD; 3794900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3795900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (FD->getQualifier()) 3796c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 3797900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3798900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // Fake up parameter variables; they are declared as if this were 3799900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // a typedef. 3800900693b715b3832a42ae87157332baece94ccdd8Eli Friedman QualType FDTy = FD->getType(); 3801900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { 3802900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SmallVector<ParmVarDecl*, 16> Params; 3803900693b715b3832a42ae87157332baece94ccdd8Eli Friedman for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), 3804900693b715b3832a42ae87157332baece94ccdd8Eli Friedman AE = FT->arg_type_end(); AI != AE; ++AI) { 3805900693b715b3832a42ae87157332baece94ccdd8Eli Friedman ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); 3806900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Param->setScopeInfo(0, Params.size()); 3807900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Params.push_back(Param); 3808900693b715b3832a42ae87157332baece94ccdd8Eli Friedman } 38094278c654b645402554eb52a48e9c7097c9f1233aDavid Blaikie NewFD->setParams(Params); 3810b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3811e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 3812e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 3813ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 3814a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 381516573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 381616573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 3817b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 3818b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 3819c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 3820b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3821e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3822e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 3823e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3824e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 3825e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 3826e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 38277b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 3828c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 3829c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 3830c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 3831c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 3832900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); 3833cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 3834cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 3835cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3836c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 3837c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 3838c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 3839c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 3840c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 3841c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 3842c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 3843c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 3844cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3845e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3846e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3847e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 38480744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 38490744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 38500744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 385160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 385260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 3853d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 3854d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 385531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (Inheritable) { 385631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor LoadExternalWeakUndeclaredIdentifiers(); 385731e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (!WeakUndeclaredIdentifiers.empty()) { 385831e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 385931e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (IdentifierInfo *Id = ND->getIdentifier()) { 386031e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 386131e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor = WeakUndeclaredIdentifiers.find(Id); 386231e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 386331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakInfo W = I->second; 386431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor DeclApplyPragmaWeak(S, ND, W); 386531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakUndeclaredIdentifiers[Id] = W; 386631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor } 3867d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 3868e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3869e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3870e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3871e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 38720744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 38737f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 387460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3875bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 38760744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 38770744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 38780744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 38790744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 38800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 38810744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 388260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3883bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 38840744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 38850744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 388660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 38870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 388854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3889f85e193739c953358c865005855253af4f68a497John McCall/// Is the given declaration allowed to use a forbidden type? 3890f85e193739c953358c865005855253af4f68a497John McCallstatic bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { 3891f85e193739c953358c865005855253af4f68a497John McCall // Private ivars are always okay. Unfortunately, people don't 3892f85e193739c953358c865005855253af4f68a497John McCall // always properly make their ivars private, even in system headers. 3893f85e193739c953358c865005855253af4f68a497John McCall // Plus we need to make fields okay, too. 3894a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian // Function declarations in sys headers will be marked unavailable. 3895a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && 3896a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian !isa<FunctionDecl>(decl)) 3897f85e193739c953358c865005855253af4f68a497John McCall return false; 3898f85e193739c953358c865005855253af4f68a497John McCall 3899f85e193739c953358c865005855253af4f68a497John McCall // Require it to be declared in a system header. 3900f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); 3901f85e193739c953358c865005855253af4f68a497John McCall} 3902f85e193739c953358c865005855253af4f68a497John McCall 3903f85e193739c953358c865005855253af4f68a497John McCall/// Handle a delayed forbidden-type diagnostic. 3904f85e193739c953358c865005855253af4f68a497John McCallstatic void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, 3905f85e193739c953358c865005855253af4f68a497John McCall Decl *decl) { 3906f85e193739c953358c865005855253af4f68a497John McCall if (decl && isForbiddenTypeAllowed(S, decl)) { 3907f85e193739c953358c865005855253af4f68a497John McCall decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, 3908f85e193739c953358c865005855253af4f68a497John McCall "this system declaration uses an unsupported type")); 3909f85e193739c953358c865005855253af4f68a497John McCall return; 3910f85e193739c953358c865005855253af4f68a497John McCall } 3911175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (S.getLangOptions().ObjCAutoRefCount) 3912175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { 3913175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // FIXME. we may want to supress diagnostics for all 3914175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // kind of forbidden type messages on unavailable functions. 3915175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (FD->hasAttr<UnavailableAttr>() && 3916175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.getForbiddenTypeDiagnostic() == 3917175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag::err_arc_array_param_no_ownership) { 3918175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.Triggered = true; 3919175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian return; 3920175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 3921175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 3922f85e193739c953358c865005855253af4f68a497John McCall 3923f85e193739c953358c865005855253af4f68a497John McCall S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) 3924f85e193739c953358c865005855253af4f68a497John McCall << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); 3925f85e193739c953358c865005855253af4f68a497John McCall diag.Triggered = true; 3926f85e193739c953358c865005855253af4f68a497John McCall} 3927f85e193739c953358c865005855253af4f68a497John McCall 3928eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 3929eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 3930eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 3931eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 3932eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3933eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 3934eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 3935eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 3936eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 3937eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 3938eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3939eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 3940eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 3941eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3942eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 3943eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 3944eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 3945eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 3946eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3947eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 3948eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 394954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 395054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3951eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 3952eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 3953eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 395454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3955eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 3956eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 3957eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 3958eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 395954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3960eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 3961eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 396254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3963eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 3964eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 3965eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 396658e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 39672f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 39682f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 3969a7bf7bbdb1f89c35a09bc525c6862525ae82778fArgyrios Kyrtzidis if (decl && !decl->isInvalidDecl()) { 3970eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 3971eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 39722f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 39732f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 39742f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 39752f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 39762f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 3977eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 3978eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 3979eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 39802f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 39812f514480c448708ec382a684cf5e035d3a827ec8John McCall 3982eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 39832f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 3984eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedDeprecationCheck(diag, decl); 39852f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 39862f514480c448708ec382a684cf5e035d3a827ec8John McCall 39872f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 3988eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 39892f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 3990f85e193739c953358c865005855253af4f68a497John McCall 3991f85e193739c953358c865005855253af4f68a497John McCall case DelayedDiagnostic::ForbiddenType: 3992f85e193739c953358c865005855253af4f68a497John McCall handleDelayedForbiddenType(S, diag, decl); 3993f85e193739c953358c865005855253af4f68a497John McCall break; 399454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 399554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 399654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 399754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 399858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 3999eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 400029233802236f7fe1db20e00eca4f5cc8f3f64adeDouglas Gregor DD.Stack[i].Destroy(); 400158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 4002eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 40032f514480c448708ec382a684cf5e035d3a827ec8John McCall} 40042f514480c448708ec382a684cf5e035d3a827ec8John McCall 40052f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 40062f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 40070a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 40082f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 4009c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis // A category implicitly has the availability of the interface. 4010c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) 4011c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis return CatD->getClassInterface()->isDeprecated(); 40122f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 40132f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 40142f514480c448708ec382a684cf5e035d3a827ec8John McCall} 40152f514480c448708ec382a684cf5e035d3a827ec8John McCall 40169c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 40172f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 40182f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 40192f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 40202f514480c448708ec382a684cf5e035d3a827ec8John McCall 40212f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 4022ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 4023c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 4024ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 4025ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 4026c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 4027c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 4028ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 402954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 403054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 40315f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, 40328e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 403389ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian const ObjCInterfaceDecl *UnknownObjCClass) { 403454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 4035eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 4036eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, Message)); 403754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 403854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 403954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 404054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 40413a387441ae339363ee5b254658f295e97bd9e913Argyrios Kyrtzidis if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) 404254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 4043ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 4044c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 4045c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 40468e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 4047743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 40488e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 404989ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian else { 40508e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 405189ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); 405289ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian } 40538e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 405454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 4055