SemaDeclAttr.cpp revision 62ec1f2fd7368542bb926c04797fb07023547694
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" 25797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 279c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 30883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 31b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskienum AttributeDeclKind { 32883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 33883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameterOrMethod, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassOrVirtualMethod, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVirtualMethod, 43883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassMember, 44883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 45883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 46db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedVariableFunctionOrLabel, 47db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedFieldOrGlobalVar 48883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 49883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 51e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 52e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 53e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 5487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic const FunctionType *getFunctionType(const Decl *D, 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 5787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) 586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5987c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 6187c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) 626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 65bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 68755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 70d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 71183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 763568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 77d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 78a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 7987c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunction(const Decl *D) { 8087c44604325578b8de07d768391c1c9432404f5aChandler Carruth return getFunctionType(D, false) != NULL; 81a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 82a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 83a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 84d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 85d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 8687c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethod(const Decl *D) { 8787c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isFunction(D)|| isa<ObjCMethodDecl>(D); 88d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 90620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 91620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 92620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 9387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodOrBlock(const Decl *D) { 9487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethod(D)) 95620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 9787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 98620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 99620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 10187c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<BlockDecl>(D); 102620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 103620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 10687c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasDeclarator(const Decl *D) { 107f85e193739c953358c865005855253af4f68a497John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 10887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || 10987c44604325578b8de07d768391c1c9432404f5aChandler Carruth isa<ObjCPropertyDecl>(D); 110711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 112d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 113d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 114620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 11587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasFunctionProto(const Decl *D) { 11687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 11772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 118620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 11987c44604325578b8de07d768391c1c9432404f5aChandler Carruth assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); 120d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 121d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1223568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1233568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 124d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 125d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 126d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 12787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic unsigned getFunctionOrMethodNumArgs(const Decl *D) { 12887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 12972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 13087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 131d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 13287c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_size(); 1333568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1343568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { 13687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 13887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 139d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 140bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14187c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); 1423568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1433568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 14487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodResultType(const Decl *D) { 14587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 1465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 14787c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->getResultType(); 1485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 15087c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodVariadic(const Decl *D) { 15187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) { 15272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 15487c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 155db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 156d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 15787c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->isVariadic(); 1583568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1593568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1603568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 16187c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isInstanceMethod(const Decl *D) { 16287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) 16307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 168183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 169b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 171bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 172506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 173506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 175bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 176506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 177bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1846217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 186085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 187085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1886217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 189085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 191bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 193465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 195085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 196085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 197085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 198085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 199b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has exactly as many args as Num. May 200b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 2011731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruthstatic bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, 2021731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth unsigned int Num) { 2031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (Attr.getNumArgs() != Num) { 2041731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; 2051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return false; 2061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth } 2071731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2081731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return true; 2091731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth} 2101731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 211db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 212b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has at least as many args as Num. May 213b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 214b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, 215b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int Num) { 216b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (Attr.getNumArgs() < Num) { 217db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; 218db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return false; 219db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 220db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 221db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return true; 222db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 223db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 224db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski/// 225fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a field or potentially shared global var 226fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a field or potentially shared global variable 227fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 22839997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool mayBeSharedVariable(const Decl *D) { 229fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (isa<FieldDecl>(D)) 230fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 23139997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const VarDecl *vd = dyn_cast<VarDecl>(D)) 232fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); 233fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 234fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 235fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 236fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 237b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the passed-in expression is of type int or bool. 238b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool isIntOrBool(Expr *Exp) { 239b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = Exp->getType(); 240b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return QT->isBooleanType() || QT->isIntegerType(); 241b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 242b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 243fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 244fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a pointer type. 245fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// Note that this function may produce an error message. 246fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a pointer type; false otherwise 247fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 24839997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool checkIsPointer(Sema &S, const Decl *D, const AttributeList &Attr) { 24939997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { 250fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski QualType QT = vd->getType(); 25139997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (QT->isAnyPointerType()) 252fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 253fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_pointer_attribute_wrong_type) 254fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName()->getName() << QT; 255fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } else { 256fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) 257fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName(); 258fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 259fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 260fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 261fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 262b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Checks that the passed in QualType either is of RecordType or points 263b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// to RecordType. Returns the relevant RecordType, null if it does not exit. 2647d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramerstatic const RecordType *getRecordType(QualType QT) { 2657d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const RecordType *RT = QT->getAs<RecordType>()) 266b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return RT; 2677d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2687d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer // Now check if we point to record type. 2697d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const PointerType *PT = QT->getAs<PointerType>()) 2707d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return PT->getPointeeType()->getAs<RecordType>(); 2717d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2727d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return 0; 273b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 274b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 2753ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \brief Thread Safety Analysis: Checks that the passed in RecordType 2763ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// resolves to a lockable object. May flag an error. 277d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramerstatic bool checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, 278d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer const RecordType *RT) { 2793ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Flag error if could not get record type for this argument. 280d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT) { 2813ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_class) 2823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski << Attr.getName(); 2833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return false; 2843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 2853ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Flag error if the type is not lockable. 286d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT->getDecl()->getAttr<LockableAttr>()) { 2873ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_lockable) 2883ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski << Attr.getName(); 2893ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return false; 2903ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 2913ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return true; 2923ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski} 2933ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 294b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Thread Safety Analysis: Checks that all attribute arguments, starting 295b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// from Sidx, resolve to a lockable object. May flag an error. 2963ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param Sidx The attribute argument index to start checking with. 2973ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param ParamIdxOk Whether an argument can be indexing into a function 2983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// parameter list. 2993ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowskistatic bool checkAttrArgsAreLockableObjs(Sema &S, Decl *D, 3003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const AttributeList &Attr, 3013ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVectorImpl<Expr*> &Args, 302b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski int Sidx = 0, 303b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool ParamIdxOk = false) { 3043ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { 305b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski Expr *ArgExp = Attr.getArg(Idx); 3063ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 307ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski if (ArgExp->isTypeDependent()) { 308ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski // FIXME -- need to processs this again on template instantiation 309ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski Args.push_back(ArgExp); 310ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski continue; 311ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski } 312b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3133ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski QualType ArgTy = ArgExp->getType(); 314b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // First see if we can just cast to record type, or point to record type. 3163ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const RecordType *RT = getRecordType(ArgTy); 317b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3183ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Now check if we index into a record type function param. 3193ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!RT && ParamIdxOk) { 3203ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 321b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); 322b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if(FD && IL) { 323b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int NumParams = FD->getNumParams(); 324b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski llvm::APInt ArgValue = IL->getValue(); 3253ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); 3263ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; 3273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { 328b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) 329b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << Idx + 1 << NumParams; 330b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return false; 331b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 3323ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); 3333ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski RT = getRecordType(ArgTy); 334b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 335b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 336b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3373ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkForLockableRecord(S, D, Attr, RT)) 338b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return false; 339b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3403ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Args.push_back(ArgExp); 341b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 342b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return true; 343b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 344b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 345e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 346e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 347e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 348e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 3493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 3503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 3513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 3523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 353fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, 354fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool pointer = false) { 355fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 356fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 357fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 358fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 359fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 360fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 361fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!mayBeSharedVariable(D)) { 362fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 363b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 364fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 365fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 366fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 367fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer && !checkIsPointer(S, D, Attr)) 368fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 369fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 370fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer) 371768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); 372fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 373768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); 374fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 375fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 376db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, 377b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool pointer = false) { 378db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 379db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 380b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 381db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 382db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 3833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 3843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 385db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 386db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (!mayBeSharedVariable(D)) { 387db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 388b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 389db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 390db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 391db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 392db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer && !checkIsPointer(S, D, Attr)) 393db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 394db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 3953ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 396ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski // FIXME: handle attributes with dependent types 3973ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return; 3983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 3993ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 4003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkForLockableRecord(S, D, Attr, getRecordType(Arg->getType()))) 401b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 402b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 403db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer) 404768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), 4053ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, Arg)); 406db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 407768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); 408db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 409db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 410db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 411fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, 412fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool scoped = false) { 413fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 414fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 415fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 416fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 417fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 4181748b1256646cf0752f172c53ad7482f7beed185Caitlin Sadowski // FIXME: Lockable structs for C code. 419fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!isa<CXXRecordDecl>(D)) { 420fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 421fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedClass; 422fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 423fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 424fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 425fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (scoped) 426768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); 427fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 428768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); 429fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 430fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 431fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleNoThreadSafetyAttr(Sema &S, Decl *D, 432fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski const AttributeList &Attr) { 433fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 434fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 435fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 436fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 437fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 438b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 439fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 440fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 441fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 442fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 443fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 444768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), 445fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Context)); 446fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 447fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 448db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, 449db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski bool before) { 450db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 451db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 452b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 453db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 454db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 455db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 456b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski ValueDecl *VD = dyn_cast<ValueDecl>(D); 457b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!VD || !mayBeSharedVariable(D)) { 458db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 459b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 460db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 461db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 462db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 463b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // Check that this attribute only applies to lockable types 464b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = VD->getType(); 465b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!QT->isDependentType()) { 466b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const RecordType *RT = getRecordType(QT); 467b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { 468b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_decl_not_lockable) 469b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 470b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 471b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 472b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 473b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4743ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 475b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 4763ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 477b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 478b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4793ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 4803ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 4813ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 4823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 483db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (before) 484768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, 4853ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 486db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 487768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, 4883ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 489db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 490db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 491db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 492b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 493db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 494db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 495db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 496db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 497b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that the attribute is applied to a function 498b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 499db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 500db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 501db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 502db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 503db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 504b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5053ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 5063ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) 507b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 508b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5093ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5103ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 5113ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5123ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 513db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 514768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), 5153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5163ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 517db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 518768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), 5193ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5203ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 521db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 522db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 523db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 524b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 525db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 526db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 527b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 528db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 529db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 530b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 531b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 532db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 533db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 534db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 535db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 536db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 537b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isIntOrBool(Attr.getArg(0))) { 538b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) 539b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 540b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 541b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 542b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5433ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 2> Args; 544b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5453ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1)) 546b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 547b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5483ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5493ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5503ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 551db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 552768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), 5533ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, 55469f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 5553ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 556db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 557768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), 55869f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski S.Context, 55969f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 56069f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski StartArg, Size)); 561db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 562db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 563db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, 564b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 565db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 566db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 567b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 568db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 569db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 570b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 571db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 572db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 573db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 574db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 575db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 576b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5773ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 5783ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 579b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 580b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5813ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 5833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5843ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 585db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 586768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), 5873ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5883ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 589db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 590768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), 5913ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5923ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 593db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 594db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 595db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleUnlockFunAttr(Sema &S, Decl *D, 596b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 597db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 598db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 599db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 600db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 601b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 602db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 603db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 604db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 605db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 606db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 607b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6083ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 6093ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) 610b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 611b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6123ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6133ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 6143ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 616768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, 6173ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 618db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 619db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 620db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockReturnedAttr(Sema &S, Decl *D, 621b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 622db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 623db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 624b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 625db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 6263ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 627db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 628b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 629db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 630db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 631db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 632db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 633db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6343ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 635b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 636b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6373ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 6383ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkForLockableRecord(S, D, Attr, getRecordType(Arg->getType()))) 6393ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski return; 6403ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 641768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, Arg)); 642db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 643db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 644db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksExcludedAttr(Sema &S, Decl *D, 645b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 646db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 647db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 648b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 649db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 650db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 651b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 652db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 653db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 654db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 655db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 656db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 657b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6583ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 6593ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) 660b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 661b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6623ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski assert(Size == Attr.getNumArgs()); 6643ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6653ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 666768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, 6673ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 668db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 669db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 670db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, 6721b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 67387c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); 674545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 675803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 676545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 6776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 678bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 6809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 6829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 6849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 685f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 686f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 687f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 6884ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 6894ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor ExprResult Size = S.ActOnIdExpression(scope, SS, id, false, false); 6904ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 6914ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 6924ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 6934ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 6949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 6959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 6961731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 6979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 6981731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 6997a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 7006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 7039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 7049ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 7059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 706ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 707a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 708bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 7109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 7116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 7156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 7161731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 7176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 718bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 71987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 720768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 72187c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { 7226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 7236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 7246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 725803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 726fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 72708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 7286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 729768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 7306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 7313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 7326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { 73587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 736768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); 737c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian else 738c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 739c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian} 740c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian 7411b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { 74296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 7431731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 74496329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 745bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 74663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 74787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 74863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 749768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); 75063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 75163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 75263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7534ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 75463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 75563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7561b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { 75763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 7581731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 75963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 76063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 76163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 762efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 76387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<ObjCIvarDecl>(D) || isa<ObjCPropertyDecl>(D)) { 764768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); 76563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 766efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 76763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7684ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 76996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 77096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 7711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutletCollection(Sema &S, Decl *D, 7721b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 773857e918a8a40deb128840308a318bf623d68295fTed Kremenek 774857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 775a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 776857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 777857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 778857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 779857e918a8a40deb128840308a318bf623d68295fTed Kremenek 780857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 781857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 78287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!(isa<ObjCIvarDecl>(D) || isa<ObjCPropertyDecl>(D))) { 7834ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 784857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 785857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 78687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) 7873a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 7883a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 7893a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 7903a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 7913a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 79287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 7933a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 7943a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 7953a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 7963a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 7973a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 7983a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 799a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 800a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 801a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 8023a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 803b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 80487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.getScopeForContext(D->getDeclContext()->getParent())); 805a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 806a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 807a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 808a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 809b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 810a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 811a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 812a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 813a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 814a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 815a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 816a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 817a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 818a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 819f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, 820f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis QT, Attr.getParameterLoc())); 821857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 822857e918a8a40deb128840308a318bf623d68295fTed Kremenek 823d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruthstatic void possibleTransparentUnionPointerType(QualType &T) { 82468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (const RecordType *UT = T->getAsUnionType()) 82568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 82668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 82768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 82868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 82968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian QualType QT = it->getType(); 83068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (QT->isAnyPointerType() || QT->isBlockPointerType()) { 83168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian T = QT; 83268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian return; 83368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 83468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 83568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 83668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian} 83768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 8381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { 839bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 840bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 84187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 842fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 843883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 844eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 845eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 846bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 84707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 84807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 84987c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 85087c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 851eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 852eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 8535f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> NonNullArgs; 854bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 855eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 856eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 857bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 858bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 859eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 8607a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 861eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 862ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 863ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 864fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 865fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 866eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 867eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 868bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 869eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 870bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 871eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 872fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 87330bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 874eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 875eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 876bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 877465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 87807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 87907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 88007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 88107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 88207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 88307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 88407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 88507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 88607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 887eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 888eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 88987c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 890d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 89168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 892dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 893eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 894c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 895fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 8967fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 897eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 898bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 899eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 900eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 901bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 902bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 903bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 9047fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 90587c44604325578b8de07d768391c1c9432404f5aChandler Carruth for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { 90687c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); 907d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 908dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 909d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 91046bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 911bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 912ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 91360acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 91460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 91560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 91660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 91760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 9187fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 91960acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 920eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 9217fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 9227fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 9237fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 924dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 925768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, 926cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 927eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 928eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 9291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { 930dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 931dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 932dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 933dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 934dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 935dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 9362a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 9372a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 938dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 939dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 940dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 941dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 942dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 943dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 944dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 945cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 9462a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 9472a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 948cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 949dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 950dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 951dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 952dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9532a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9542a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 955cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 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_returns: 962cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 963dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 964dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 965dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 966dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 967dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 9682a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 9692a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 9702a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 9712a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 972dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 973dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 97487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunction(D) || !hasFunctionProto(D)) { 975883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 976883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 977dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 978dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 979dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 98007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 98107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 98287c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 98387c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 984dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 9855f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Module = AL.getParameterName()->getName(); 986dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 987dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 988dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 989dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 990dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 9915f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> OwnershipArgs; 992dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 9932a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 9942a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 995dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 9967a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 997dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 998dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 999dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1000dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 1001dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 1002dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1003dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1004dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1005dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 1006dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1007dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 1008dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 1009dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 1010dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1011dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1012dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 101307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 101407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 101507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 101607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 101707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 101807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 101907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 102007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 102107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1022dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 1023cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 1024cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 1025dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 102687c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x); 1027dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 1028dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 1029dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1030cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 1031dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 1032dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1033dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1034dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1035dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1036dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1037cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 1038dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1039dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 10407a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 1041dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1042dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1043dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1044dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1045dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 1046dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1047dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1048dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1049dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1050dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1051dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 10522a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 10532a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 1054dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 1055dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1056dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 1057cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 105887c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<OwnershipAttr>(), 105987c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<OwnershipAttr>(); 1060cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 1061cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 1062cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 1063cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 1064cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 1065cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 1066cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 1067dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1068dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1069dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1070dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1071dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 1072dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1073dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1074dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 1075dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 1076dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 1077cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1078cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 1079cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1080cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 1081dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1082cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 108387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 1084cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 1085dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 1086dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1087332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 1088332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 1089332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 1090332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 1091332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 1092332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 1093332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1094332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1095332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 1096332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 1097332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 1098332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1099332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1100332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 1101332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 1102332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1103332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 110411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 110511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 110611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { 110811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 110911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 111011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 111111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 111211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 111311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 111487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 1115332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1116883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1117332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 1118332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1119332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 112087c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1121332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 112211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 112311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 112411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 112511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 112611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 112711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 112811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 112911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 113011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 113111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 113287c44604325578b8de07d768391c1c9432404f5aChandler Carruth const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); 11337a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 11347a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 1135332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 11367a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 113711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 113811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 113911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 114011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 114111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 114211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 114311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 114411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 114511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 114611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 114711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 114811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 114911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 115011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 115111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 115211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 115311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 115411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 115511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 115611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1157332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 1158332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 115911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 116011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 116111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 116211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 116311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 116411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 116511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 116611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 11677a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 116811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 116911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 117011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11715cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 117211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 117311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 117411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 117511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 117611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 117711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 1178768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1179f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 118011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 118111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1182768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); 118311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 118411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 11866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1187545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 11883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1191bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11927a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 11936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 11946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1195bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11965cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1197fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 11983c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 11996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1201bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1202bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { 1203f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 1204f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 1205f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 1206f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 12076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 1208bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1209768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1210f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 12116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1214dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 12151731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1216dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1217dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 121887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1219dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1220883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 1221dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1222dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 1223dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 1224768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); 1225dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 1226dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 12271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlwaysInlineAttr(Sema &S, Decl *D, 12281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1229dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1230831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 12313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1232af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 1233af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 12345bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 123587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 12365bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1237883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 12385bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 12395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1240bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1241768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); 1242af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 1243af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 12441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1245dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1246831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 124776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 124876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 124976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 12501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 12532cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 1254768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); 12552cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 12562cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 1257fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 1258fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 12592cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 126076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 126176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 12621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 126334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 12641731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 126534c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 126634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 1267768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); 126834c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 126934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 12701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 127156aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 127287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1273768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); 1274722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1275722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1276883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1277a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1278a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 12791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 128056aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 128187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1282768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); 1283722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1284722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1285883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1286a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1287a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 12881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { 128987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 1290711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1291711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 1292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 129387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 1294711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1295883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 1296711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 1297711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1298711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1299768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); 1300711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 1301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1302711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 1303831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (attr.hasParameterOrArguments()) { 1304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 1306711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 1307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1309711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 1310b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 1311b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, 13131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1314b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1315b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 1316b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 1317b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13181731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 0)) 13191731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return; 1320b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 132187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { 132287c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *VD = dyn_cast<ValueDecl>(D); 13233ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 13243ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 1325e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 1326e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 1327b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 1328883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1329b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 133019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 13316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1332b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1333768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); 13346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 133635cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 13371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { 133835cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 133935cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 134035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 1341f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 1342f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 1343f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 1344f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 1345f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 134635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 134735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 134835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 134935cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 135035cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 135135cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 135235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 135335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 135435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 135535cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 135635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 135735cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 135835cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 135935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 136035cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 136187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<RecordDecl>(D)) { 136235cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1363883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 136435cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 136535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 136635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 136787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (D->getAttr<VecReturnAttr>()) { 136835cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 136935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 137035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 137135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 137287c44604325578b8de07d768391c1c9432404f5aChandler Carruth RecordDecl *record = cast<RecordDecl>(D); 137301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 137401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 137501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 137601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 137701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 137801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 137901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 138001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 138101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 138201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 138301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 138401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1385f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 1386f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 138701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 138801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 138901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 139001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 139101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 139201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 139301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1394768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); 139535cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 139635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 13971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { 139887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { 1399bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1400883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 1401bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1402bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 1403bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 1404bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 1405bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 14061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 140773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 1408831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 14093c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 141073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 141173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1412bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 141387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && 141487c44604325578b8de07d768391c1c9432404f5aChandler Carruth !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { 1415fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1416883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 141773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 141873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1419bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1420768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); 142173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 142273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 14231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1424b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 1425831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 1426b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1427b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1428b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1429bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 143087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 1431186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 1432b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 1433b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1434b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 143587c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (!isFunctionOrMethod(D)) { 1436b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1437883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1438b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1439b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1440bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1441768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); 1442b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 1443b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 14441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14453068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1446bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1447bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 14483068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1449bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 14513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 14523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 14537a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 14543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1455ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1456ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1457fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 14583c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 14593068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14603068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 14623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1463bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 146487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1465fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1466883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 14673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14693068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1470768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, 1471f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 14723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 14733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 14741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1476bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1477bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 14783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1479bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 14813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 14823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 14837a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 14843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1485ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1486ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1487fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 14883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 14893068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 14923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1493bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 149487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1495fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1496883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 14973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 14983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 14993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1500768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, 1501f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 15023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 15033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1505951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1506951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1507bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1508c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1509c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1510951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1511c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 15125f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1513951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1514951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1515c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1516951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1517951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1518c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1519c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1520951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 15216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1522bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1523768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); 15246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1527951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1528951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1529bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1530bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1531bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1532951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1533c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 15345f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1535951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1536951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1537c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1538951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1539c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1540c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1541c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1542951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1543c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1544768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); 1545bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1546bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1547742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanianstatic void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, 1548742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian const AttributeList &Attr) { 1549742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1550742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (NumArgs > 0) { 1551742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1552742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian return; 1553742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 1554742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1555742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( 1556768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis Attr.getRange(), S.Context)); 1557742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian} 1558742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 15591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAvailabilityAttr(Sema &S, Decl *D, 15601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 15610a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor IdentifierInfo *Platform = Attr.getParameterName(); 15620a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor SourceLocation PlatformLoc = Attr.getParameterLoc(); 15630a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15645f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef PlatformName 15650a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 15660a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (PlatformName.empty()) { 15670a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 15680a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << Platform; 15690a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15700a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 15710a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 15720a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15730a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 15740a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 15750a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 1576b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor bool IsUnavailable = Attr.getUnavailableLoc().isValid(); 15770a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1578c90df6a0ad61041e976e0136c29e6d57b17cba3dDouglas Gregor // Ensure that Introduced <= Deprecated <= Obsoleted (although not all 15790a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 15800a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Deprecated.isValid() && 15813b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Deprecated.Version)) { 15820a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 15830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << PlatformName << Deprecated.Version.getAsString() 15840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 15850a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 15860a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 15870a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15880a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Obsoleted.isValid() && 15893b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Obsoleted.Version)) { 15900a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 15910a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 15920a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 15930a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 15940a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 15950a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 15960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Deprecated.isValid() && Obsoleted.isValid() && 15973b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Deprecated.Version <= Obsoleted.Version)) { 15980a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) 15990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16000a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << Deprecated.Version.getAsString(); 16010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16020a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16030a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1604768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, 16050a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Platform, 16060a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Introduced.Version, 16070a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Deprecated.Version, 1608b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Obsoleted.Version, 1609b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor IsUnavailable)); 16100a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 16110a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 16136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 16141731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 1)) 16156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1616bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16177a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 16186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 16196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1620bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16215cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1622fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 16233c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 16246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1626bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16275f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef TypeStr = Str->getString(); 1628cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1629bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1630c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1631cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1632c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1633cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1634c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1635cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1636c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1637cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 16386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 163908631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 16406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1642bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1643768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); 16446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16461b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, 16471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1648d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1649d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 165087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1651883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1652d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1653d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1654d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 165587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { 165687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { 165787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1658d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1659d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 166087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1661d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 166287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 1663d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1664d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1665d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 16665f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef param = Attr.getParameterName()->getName(); 1667d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1668d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1669d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1670d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1671d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1672d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1673d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1674d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1675d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1676d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1677d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1678d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1679d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1680d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1681d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1682d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 168387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); 1684d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1685d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1686d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1687f85e193739c953358c865005855253af4f68a497John McCall if (family == ObjCMethodFamilyAttr::OMF_init && 1688f85e193739c953358c865005855253af4f68a497John McCall !method->getResultType()->isObjCObjectPointerType()) { 1689f85e193739c953358c865005855253af4f68a497John McCall S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) 1690f85e193739c953358c865005855253af4f68a497John McCall << method->getResultType(); 1691f85e193739c953358c865005855253af4f68a497John McCall // Ignore the attribute. 1692f85e193739c953358c865005855253af4f68a497John McCall return; 1693f85e193739c953358c865005855253af4f68a497John McCall } 1694f85e193739c953358c865005855253af4f68a497John McCall 1695768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), 1696f85e193739c953358c865005855253af4f68a497John McCall S.Context, family)); 1697d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1698d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 16991b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCExceptionAttr(Sema &S, Decl *D, 17001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 17011731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 17020db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 1703bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17040db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 17050db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 17060db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 17070db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 17080db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1709bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1710768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); 17110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 17120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 17131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { 1714fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 17152b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1716fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1717fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1718162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 1719fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1720fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 17216217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1722fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1723fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1724fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1725fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1726768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); 1727fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1728fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1729bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 17301b03c8719e2e45cf2769430335d7e71f18e6634aChandler CarruthhandleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1731f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 17322b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1733f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1734f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1735f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1736f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1737f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1738f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1739f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1740f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1741768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); 1742f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1743f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 17441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1745bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1746fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 17473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 17489eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 17499eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1750bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17519eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 17523c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 17539eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 17549eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1755bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1756cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 175792e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 17589eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 17599eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1760fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 17613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 17629eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 17639eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1764bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1765768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); 17669eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 17679eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 17681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1769770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1770770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1771bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1772770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1773bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1774bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17753323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned sentinel = 0; 1776770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 17777a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1778770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1779ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1780ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1781fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 17823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1783770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1784770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1785bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17863323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if (Idx.isSigned() && Idx.isNegative()) { 1787fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1788fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1789770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1790770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 17913323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall 17923323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall sentinel = Idx.getZExtValue(); 1793770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1794770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 17953323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned nullPos = 0; 1796770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 17977a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1798770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1799ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1800ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1801fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1803770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1804770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1805770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1806bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18073323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { 1808770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1809770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1810fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1811fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1812770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1813770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1814770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1815770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 181687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 18173323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall const FunctionType *FT = FD->getType()->castAs<FunctionType>(); 1818897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1819897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1820897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1821897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1822bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1823897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 18243bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1825770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1826bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 182787c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 1828770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 18293bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1830770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 18312f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 183287c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (isa<BlockDecl>(D)) { 1833bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1834bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 18352f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 183687c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 18372f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1838daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 183987c44604325578b8de07d768391c1c9432404f5aChandler Carruth const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) 1840f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 18412f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 18423bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 18433bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 18442f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 18452f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1846ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 18472f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1848883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 18492f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 18502f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1851770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1852fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1853883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1854770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1855770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1856768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, 1857f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1858770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1859770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 18601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { 1861026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 18621731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1863026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1864026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1865f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1866026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1867883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1868026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1869026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1870bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1871f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1872f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1873f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1874f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1875f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1876f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1877f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1878f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1879f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1880f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1881f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1882f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1883768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); 1884026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1885026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 18861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { 18876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 188887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.hasParameterOrArguments()) { 188987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 18906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18926e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 189387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 189487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 189587c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedVariableOrFunction; 1896f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1897f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1898f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 189987c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1900332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1901332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 1902332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 190387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); 19046e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19056e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1906bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1907768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 19086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { 19116e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 19121731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 19136e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19141731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 19156e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 19166e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 19176e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 19180a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 19190a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 19200a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 19210a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 19220a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 1923def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || 1924bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor (S.Context.getTargetInfo().getTriple().isOSDarwin() && 1925def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor isa<ObjCInterfaceDecl>(D))) { 1926def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor // Nothing to warn about here. 1927def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor } else 1928c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1929883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 19306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 19316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 19326e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 19336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1934768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); 19356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 19366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 19371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleReqdWorkGroupSize(Sema &S, Decl *D, 19381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 19396f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 19401731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 3)) 19416f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 19426f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 19436f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 19446f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 19457a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 19466f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1947ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1948ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 19496f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 19506f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 19516f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 19526f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 19536f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 19546f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1955768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, 1956cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 19576f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 19586f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 19596f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 19601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { 196117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 19621731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 196317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 196417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 196517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 196617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 19677a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1968797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 196917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1970797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 197117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 197217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 19731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1974797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1975bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); 1976a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1977a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1978a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1979797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1980797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 19811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1982a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1983a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1984a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1985a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1986a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1987a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1988768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, 1989f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 199017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 199117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 19926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { 19946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1995831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 19963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1999b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 200087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { 2001b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2002ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2003b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2004768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); 2005b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 20066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 20076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2009232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 2010831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 20113c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2012232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2013232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 2014bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 201587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { 2016b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2017ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2018b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2019768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); 2020b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2021232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2022232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 20231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2024232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 20251731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2026232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2027bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2028768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); 2029232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2030232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 20311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2032bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 2033f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2034f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2035f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2036bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2037f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 2038f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2039f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2040f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2041bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 204287c44604325578b8de07d768391c1c9432404f5aChandler Carruth VarDecl *VD = dyn_cast<VarDecl>(D); 2043bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2044f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 2045f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 2046f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2047f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2048bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2049f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 2050c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 2051f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 2052f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 2053f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 2054f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 2055f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 2056f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 2057f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2058f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2059bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2060f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 2061f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 2062f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2063f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 2064f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2065f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2066f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2067f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2068f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 2069f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2070f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 2071f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2072f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2073f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2074bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 207589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 207689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 207789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 207889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 2079b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 2080b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 2081f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 208289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 208389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 208489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 208589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 2086bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2087768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); 2088223ae5c26654e5fd7dacdafe43aff28a096ba63bArgyrios Kyrtzidis S.MarkDeclarationReferenced(Attr.getParameterLoc(), FD); 2089f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 2090f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2091bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 2092bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 20931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20941731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 20955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 20961731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 209787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 20985b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2099883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 21005b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21015b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 210207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 210307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 210407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 210587c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 210687c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 21075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 210807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 21095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 21107a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 21115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 2112ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2113ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 21145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 21155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 21165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2118bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 21205b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 21215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 21225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 21235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2124bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 2126bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 212707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 212807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 212907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 213007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 213107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 213207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 213307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 213407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 213507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 21365b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 213787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 2138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 21405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 21415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 21425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 21436217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 21445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 21455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2146bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 21475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 21485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2149bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 215087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Ty = getFunctionOrMethodResultType(D); 21515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 21525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 21535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 21546217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 21555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 21565b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 2157bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 21585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 21595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2160bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 2161bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2162768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, 216307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 21645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 21655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 21662b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 21672b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 21682b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 21692b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 21702b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 21713c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 21722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 21732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 21742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 21752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 21762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 21775f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic FormatAttrKind getFormatAttrKind(StringRef Format) { 21782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 21792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 21802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 21812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 21822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 21832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 21842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 21852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 21862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 21872b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 21882b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 21892b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 2190cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 2191cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 21922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 21932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2194bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 2195bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 21963c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 21973c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 21982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 21992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 22002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2201521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 2202521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 22031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleInitPriorityAttr(Sema &S, Decl *D, 22041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 2205521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 2206521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2207521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2208521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2209521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 221087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { 2211b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2212b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2213b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2214b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 221587c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = dyn_cast<VarDecl>(D)->getType(); 2216b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 2217b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 2218b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 2219b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2220b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2221b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2222b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 2223b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2224521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 2225521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2226521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2227521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2228521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 22297a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 2230b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2231521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 2232521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 2233521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 2234521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 2235521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 2236521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2237521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2238521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 22399f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 2240521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 2241521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 2242521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 2243521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2244521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2245521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2246768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, 2247f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 2248521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 2249521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 2250bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 2251bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 22521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { 22536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2254545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 2255fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 22563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 22576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2260545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 22613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 22626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 226587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { 2266fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2267883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 227107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 227207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 227387c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 227487c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 22756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 22766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 22775f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Format = Attr.getParameterName()->getName(); 22786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 22796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 22802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 22812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 22822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 22832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 22842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 22853c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 22863c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 22873c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 22883c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 22892b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 2290fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 229101eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 22926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 22936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 22946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 22956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 22967a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 2297803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 2298ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2299ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 2300fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23013c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 23026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 2306fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 23073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 23086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 23126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 2313bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23144a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 23154a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 231607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 231707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 231807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 23194a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 23204a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 23214a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 23224a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 23231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 232587c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 23266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23272b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 2328085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 2329fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2330fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 2331085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 2332085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 23332b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 2334390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 2335390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 2336803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 2337390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2338fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2339fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 23406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2341bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 23426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 23436217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 2344390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2345fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2346fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 23476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 23517a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 2352803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 2353ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 2354ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 2355fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 23576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 23616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 236287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethodVariadic(D)) { 23636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 23646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 236587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); 23666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 23713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 23722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 23736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 2374fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 2375fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 23766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 23796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 2380fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 23813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 23826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2385b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // Check whether we already have an equivalent format attribute. 2386b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor for (specific_attr_iterator<FormatAttr> 238787c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<FormatAttr>(), 238887c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<FormatAttr>(); 2389b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor i != e ; ++i) { 2390b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor FormatAttr *f = *i; 2391b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getType() == Format && 2392b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFormatIdx() == (int)Idx.getZExtValue() && 2393b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFirstArg() == (int)FirstArg.getZExtValue()) { 2394b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // If we don't have a valid location for this attribute, adopt the 2395b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // location. 2396b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getLocation().isInvalid()) 2397ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis f->setRange(Attr.getRange()); 2398b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor return; 2399b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2400b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2401b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 2402768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, 2403cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 24042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 24056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleTransparentUnionAttr(Sema &S, Decl *D, 24081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 24096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 24101731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 24116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24121731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 24136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 24150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 241687c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); 24170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 24180c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 24190c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 242087c44604325578b8de07d768391c1c9432404f5aChandler Carruth RD = dyn_cast<RecordDecl>(D); 24210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 24220c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 2423fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2424883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 24256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 2429bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 24300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 24310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 24320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 24330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 243417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 243517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 24360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 24370c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 24380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 24390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2440bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 24410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 24420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 244390cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 2444bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 244590cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 244690cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 24470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 24480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2449bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 24500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 24510c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 24520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 24530c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 24540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 24550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 24560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 24570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 2458bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 24590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 2460bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 24610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 24620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 24630c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 2464bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 24650c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 24660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 2467bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 2468bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 2469bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 24706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2471768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); 24726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { 24756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 24761731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 24776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24781731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 24797a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2480797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 2481bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 24836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 24846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 2485797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 24866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 248877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 248977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Don't duplicate annotations that are already set. 249077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge for (specific_attr_iterator<AnnotateAttr> 249177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge i = D->specific_attr_begin<AnnotateAttr>(), 249277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { 249377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge if ((*i)->getAnnotation() == SE->getString()) 249477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge return; 249577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge } 2496768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, 2497f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 24986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 25016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2502545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 25033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 25046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2506bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2507bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 2508bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 2509bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 25106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2511545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 2512768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); 25134ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 25144ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 25154ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2516768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); 25174ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 25184ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2519768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { 25204ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 25214ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 2522768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); 25236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2525bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2526768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis SourceLocation AttrLoc = AttrRange.getBegin(); 2527cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 252849e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 25294ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 25304ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 25314ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 253249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 253349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 2534396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 25354ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 25364ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 2537396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 2538396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 2539396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 2540768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); 2541cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 2542cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 2543768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { 2544cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 2545cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 2546768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); 2547cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 25486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2549fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2550d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth/// handleModeAttr - This attribute modifies the width of a decl with primitive 2551bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 2552fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 2553bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2554bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2555bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 25561b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2557fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2558fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2559fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2560fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 25611731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2562fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 25631731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2564fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2565fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2566fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 25670b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2568fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2569fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2570210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 25715f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str = Attr.getParameterName()->getName(); 2572fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2573fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2574210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2575210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2576fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2577fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2578fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 257973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2580210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2581fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 258273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 258373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 258473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 258573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 258673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 258773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 258873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 258973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 259073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 259173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 259273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 259373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 259473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 259573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 259673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 259773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2598fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2599fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2600fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2601fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2602210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 2603bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2604210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 2605bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getCharWidth(); 2606fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2607fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2608210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 2609bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2610fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2611fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2612fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2613fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2614162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) 2615fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2616fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2617fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2618fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2619fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2620768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << "mode" << Attr.getRange(); 2621fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2622fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 262373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2624183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 262573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 262673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 26272ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 262873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 262973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 263073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 263173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 263273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 263373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 263473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 263573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 263673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2637390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2638390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2639390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2640390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2641f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2642f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2643fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2644fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2645fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 26463c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2647fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2648fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 26493c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2650fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2651fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 265273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 265373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 265473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 265573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2656fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 26570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2658fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 26590b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2660fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2661fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 266273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 266373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 266473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 266573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2666fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 26670b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2668fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 26690b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2670fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2671fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2672fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 26730b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2674fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 26750b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2676fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 26770b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2678fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2679fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2680fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 26810b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2682fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2683bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2684aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2685aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2686aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2687fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2688bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2689aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2690aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2691aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2692fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 269373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 269473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 269573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2696f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2697f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2698f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2699f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2700f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2701f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2702f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2703f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2704f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 270573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2706fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2707fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 270873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 270973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2710fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2711fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2712fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2713162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 2714ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2715a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2716ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2717fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2718fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 27190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 27201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2721d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 27221731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2723d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2724e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 272587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 2726d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2727883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2728d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2729d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2730bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2731768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); 2732d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2733d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 27341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 27355bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 27361731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 27375bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 27381731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2739bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 274087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 27415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2742883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 27435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 27445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2745bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2746768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); 27475bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 27485bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 27491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, 27501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 27517255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 27521731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 27537255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 27541731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 27557255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 275687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 27577255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2758883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 27597255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 27607255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 27617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2762768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), 2763f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 27647255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 27657255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 27661b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2767ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2768ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2769831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 2770ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2771ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2772ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2773ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 277487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2775ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2776883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2777ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2778ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2779ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2780768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); 2781ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2782ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2783ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2784ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2785ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 27861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2787ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2788ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2789ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2790ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2791ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2792ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2793ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 279487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 2795ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2796883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2797ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2798ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2799ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2800768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); 2801ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2802ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2803ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2804ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2805ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2807ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2808ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 28091731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2810ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2811ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 281287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2813ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2814883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2815ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2816ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2817ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 281887c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *FD = cast<FunctionDecl>(D); 28192c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2820723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 28212c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 28222c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 28232c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 28242c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 28252c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 28262c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 28272c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 28282c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 28292c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 28302c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 28312c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 28322c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2833768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); 2834ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2835ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2836ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2837ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2838ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28391b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2840ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2841ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 28421731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2843ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 28441731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2845ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 284687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2847ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2848883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2849ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2850ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2851ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2852768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); 2853ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2854ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2855ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2856ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2857ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2859ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2860ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 28611731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2862ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 28631731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2864ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 286587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2866ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2867883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2868ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2869ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2870ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2871768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); 2872ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2873ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2874ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2875ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2876ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 28771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 287826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 28791731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 288026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 2881bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 288287c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 2883c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 288426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2885883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 288626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 288726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2888bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 28890130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2890cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2891c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2892c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2893bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2894768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); 289526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 289626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 28971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { 289887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 2899711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 290087c44604325578b8de07d768391c1c9432404f5aChandler Carruth // Diagnostic is emitted elsewhere: here we store the (valid) Attr 2901e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2902711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 290387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckCallingConvAttr(Attr, CC)) 2904711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2905e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 290687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 290787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 290887c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 2909711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 291287c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 2913e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2914768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); 2915e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2916e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2917768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); 2918e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2919f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2920768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); 292104633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2922e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2923768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); 2924e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 292552fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2926768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); 292752fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2928414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 292987c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *Arg = Attr.getArg(0); 2930414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 29315cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 293287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2933414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 293487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2935414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 2936414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2937414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 29385f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 2939414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PcsAttr::PCSType PCS; 2940414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") 2941414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS; 2942414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else if (StrRef == "aapcs-vfp") 2943414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS_VFP; 2944414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else { 294587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_invalid_pcs); 294687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2947414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 2948414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2949414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 2950768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); 2951414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2952e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2953e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2954e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2955e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2956e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2957e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 29581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ 295956aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 2960768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); 2961f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 2962f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 2963711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 2964711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2965711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2966711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2967831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if ((attr.getNumArgs() != 0 && 2968831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || 2969831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek attr.getParameterName()) { 2970711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2971711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2972711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2973ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 297455d3aaf9a537888734762170823daf750ea9036dEli Friedman 2975414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // TODO: diagnose uses of these conventions on the wrong target. Or, better 2976414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // move to TargetAttributesSema one day. 2977711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2978711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 2979711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 2980711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 2981711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 2982711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 2983414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 2984414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Expr *Arg = attr.getArg(0); 2985414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 29865cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 2987414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 2988414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 2989414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr.setInvalid(); 2990414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return true; 2991414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2992414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 29935f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 2994414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") { 2995414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS; 2996414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 2997414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } else if (StrRef == "aapcs-vfp") { 2998414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS_VFP; 2999414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3000414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3001414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // FALLS THROUGH 3002414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3003711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: llvm_unreachable("unexpected attribute kind"); return true; 3004711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3005711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3006711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3007711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3008711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 30091b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { 301087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3011711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3012711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 301387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckRegparmAttr(Attr, numParams)) 3014711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3015711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 301687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 301787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 301887c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3019ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 3020ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 302155d3aaf9a537888734762170823daf750ea9036dEli Friedman 3022768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); 3023711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3024711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3025711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 3026711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 302787c44604325578b8de07d768391c1c9432404f5aChandler Carruthbool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { 302887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.isInvalid()) 3029711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3030711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 303187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 1) { 303287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 303387c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3034711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3035711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3036711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 303787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *NumParamsExpr = Attr.getArg(0); 303855d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 3039ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 3040711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 304187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 304255d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 304387c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3044711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 304555d3aaf9a537888734762170823daf750ea9036dEli Friedman } 304655d3aaf9a537888734762170823daf750ea9036dEli Friedman 3047bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getRegParmMax() == 0) { 304887c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 304955d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 305087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3051711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 305255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 305355d3aaf9a537888734762170823daf750ea9036dEli Friedman 3054711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 3055bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (numParams > Context.getTargetInfo().getRegParmMax()) { 305687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 3057bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); 305887c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3059711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 306055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 306155d3aaf9a537888734762170823daf750ea9036dEli Friedman 3062711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3063ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 3064ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 30651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ 30667b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 30677b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 30687b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 3069bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 3070bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 30717b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 30727b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 30737b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 307487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 30757b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3076883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 30777b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 30787b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 30797b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 30807b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 30817b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 30827b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 30837b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 30847b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 30857b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 30867b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 30877b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 30887b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 30897b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 30907b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 30917b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 30927b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 30937b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 30947b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 30957b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 30967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 30977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 30987b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 30997b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31007b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 3102768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, 31037b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 31047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 31057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 31067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 31077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 31087b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 31097b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 31100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 3111b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 3112b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 3113b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3114c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 3115c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isObjCObjectPointerType() || S.Context.isObjCNSObjectType(type); 3116c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3117c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 3118c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isPointerType() || isValidSubjectOfNSAttribute(S, type); 3119c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3120c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 31211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 312287c44604325578b8de07d768391c1c9432404f5aChandler Carruth ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); 3123c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 312487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3125768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedParameter; 3126c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3127c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3128c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3129c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 313087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getKind() == AttributeList::AT_ns_consumed) { 3131c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 3132c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3133c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 3134c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 3135c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3136c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3137c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3138c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 313987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 3140768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << cf; 3141c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3142c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3143c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3144c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 3145768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); 3146c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 3147768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); 3148c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3149c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 31501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumesSelfAttr(Sema &S, Decl *D, 31511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 315287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 315387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3154768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedMethod; 3155c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3156c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3157c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3158768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); 3159c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3160c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 31611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSReturnsRetainedAttr(Sema &S, Decl *D, 31621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3163b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3164c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 3165bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 316687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 3167c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 316887c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 3169831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian returnType = PD->getType(); 317087c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (S.getLangOptions().ObjCAutoRefCount && hasDeclarator(D) && 317187c44604325578b8de07d768391c1c9432404f5aChandler Carruth (Attr.getKind() == AttributeList::AT_ns_returns_retained)) 3172f85e193739c953358c865005855253af4f68a497John McCall return; // ignore: was handled as a type attribute 317387c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 3174c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 31755dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 317687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3177768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() 3178883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 3179b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3180b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 3181bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3182c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 3183c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 318487c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3185c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall default: llvm_unreachable("invalid ownership attribute"); return; 3186c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3187c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 3188c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 3189c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 3190c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3191c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3192c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3193c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 3194c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 3195c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 3196c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3197c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3198c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3199c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3200c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 320187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3202768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; 3203bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 32045dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 3205bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 320687c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3207b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 3208b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 3209b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3210c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3211768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), 3212c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 3213c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 321431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3215768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), 3216f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 321731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 321831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 3219768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), 3220f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 322131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 3222b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 3223768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), 3224f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3225b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3226b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3227768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), 3228f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3229b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3230b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 3231b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 3232b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3233dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCallstatic void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, 3234dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall const AttributeList &attr) { 3235dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall SourceLocation loc = attr.getLoc(); 3236dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3237dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); 3238dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3239dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall if (!isa<ObjCMethodDecl>(method)) { 3240dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::err_attribute_wrong_decl_type) 3241dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc, loc) << attr.getName() << 13 /* methods */; 3242dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3243dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3244dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3245dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Check that the method returns a normal pointer. 3246dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall QualType resultType = method->getResultType(); 3247dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall if (!resultType->isPointerType() || resultType->isObjCRetainableType()) { 3248dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3249dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc) 3250dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; 3251dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3252dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Drop the attribute. 3253dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3254dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3255dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3256dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall method->addAttr( 3257768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); 3258dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall} 3259dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 32601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCOwnershipAttr(Sema &S, Decl *D, 32611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 326287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3263f85e193739c953358c865005855253af4f68a497John McCall 326487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3265768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << 12 /* variable */; 3266f85e193739c953358c865005855253af4f68a497John McCall} 3267f85e193739c953358c865005855253af4f68a497John McCall 32681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, 32691b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 327087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { 327187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3272768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << 12 /* variable */; 3273f85e193739c953358c865005855253af4f68a497John McCall return; 3274f85e193739c953358c865005855253af4f68a497John McCall } 3275f85e193739c953358c865005855253af4f68a497John McCall 327687c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *vd = cast<ValueDecl>(D); 3277f85e193739c953358c865005855253af4f68a497John McCall QualType type = vd->getType(); 3278f85e193739c953358c865005855253af4f68a497John McCall 3279f85e193739c953358c865005855253af4f68a497John McCall if (!type->isDependentType() && 3280f85e193739c953358c865005855253af4f68a497John McCall !type->isObjCLifetimeType()) { 328187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) 3282f85e193739c953358c865005855253af4f68a497John McCall << type; 3283f85e193739c953358c865005855253af4f68a497John McCall return; 3284f85e193739c953358c865005855253af4f68a497John McCall } 3285f85e193739c953358c865005855253af4f68a497John McCall 3286f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); 3287f85e193739c953358c865005855253af4f68a497John McCall 3288f85e193739c953358c865005855253af4f68a497John McCall // If we have no lifetime yet, check the lifetime we're presumably 3289f85e193739c953358c865005855253af4f68a497John McCall // going to infer. 3290f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) 3291f85e193739c953358c865005855253af4f68a497John McCall lifetime = type->getObjCARCImplicitLifetime(); 3292f85e193739c953358c865005855253af4f68a497John McCall 3293f85e193739c953358c865005855253af4f68a497John McCall switch (lifetime) { 3294f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_None: 3295f85e193739c953358c865005855253af4f68a497John McCall assert(type->isDependentType() && 3296f85e193739c953358c865005855253af4f68a497John McCall "didn't infer lifetime for non-dependent type?"); 3297f85e193739c953358c865005855253af4f68a497John McCall break; 3298f85e193739c953358c865005855253af4f68a497John McCall 3299f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Weak: // meaningful 3300f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Strong: // meaningful 3301f85e193739c953358c865005855253af4f68a497John McCall break; 3302f85e193739c953358c865005855253af4f68a497John McCall 3303f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_ExplicitNone: 3304f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Autoreleasing: 330587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) 3306f85e193739c953358c865005855253af4f68a497John McCall << (lifetime == Qualifiers::OCL_Autoreleasing); 3307f85e193739c953358c865005855253af4f68a497John McCall break; 3308f85e193739c953358c865005855253af4f68a497John McCall } 3309f85e193739c953358c865005855253af4f68a497John McCall 331087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) 3311768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); 3312f85e193739c953358c865005855253af4f68a497John McCall} 3313f85e193739c953358c865005855253af4f68a497John McCall 3314f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 3315f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 331611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_dllexport || 331711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_uuid; 331811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 331911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 332011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 332111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 332211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 332311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 33241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { 332562ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { 332611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 33271731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 332811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 33291731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 333011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 333111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 33325cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3333d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3334d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 3335d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3336d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3337d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 33385f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3339d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3340d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 3341d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 3342d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3343d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 3344d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 3345d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3346d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3347d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3348d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 3349d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3350d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3351d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3352d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3353d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 3354d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 33555f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::iterator I = StrRef.begin(); 3356f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 3357f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 3358f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 3359f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 3360d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 3361d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 3362d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3363d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3364d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3365d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 3366d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3367d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3368d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3369d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 3370d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 337111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 3372768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, 337311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 3374d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 337511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 3376f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 3377f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 3378b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 33790744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 33800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 33810744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 33821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 33831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 338460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 33851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; 33861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; 33871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; 338860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 338960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 339060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 339160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 3392e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 33931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 33941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3395803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 33961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_IBAction: handleIBAction(S, D, Attr); break; 33971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_IBOutlet: handleIBOutlet(S, D, Attr); break; 3398857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 33991b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleIBOutletCollection(S, D, Attr); break; 3400803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 3401207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 3402ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 34036e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 34044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 34054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 3406bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 3407bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 3408803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 340960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 341060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 341160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 341260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 341360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 341460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 34151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; 34161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; 3417bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 34181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAlwaysInlineAttr (S, D, Attr); break; 3419b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 34201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAnalyzerNoReturnAttr (S, D, Attr); break; 34211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; 34221b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; 3423bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 34241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleDependencyAttr (S, D, Attr); break; 34251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; 34261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; 34271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; 34281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; 34291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; 34303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 34311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleExtVectorTypeAttr(S, scope, D, Attr); 34323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 34331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; 34341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; 34351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; 34361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; 34377b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 34381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleLaunchBoundsAttr(S, D, Attr); 34397b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 34401b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; 34411b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; 34421b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; 34431b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; 34441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; 3445dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 3446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 3447dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 34481b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOwnershipAttr (S, D, Attr); break; 34491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; 34501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; 34511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; 34521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; 34531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; 3454b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3455b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 34561b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCOwnershipAttr(S, D, Attr); break; 3457f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_precise_lifetime: 34581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCPreciseLifetimeAttr(S, D, Attr); break; 3459f85e193739c953358c865005855253af4f68a497John McCall 3460dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall case AttributeList::AT_objc_returns_inner_pointer: 3461dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall handleObjCReturnsInnerPointerAttr(S, D, Attr); break; 3462dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3463b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 3464c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 34651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; 3466c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 34671b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSConsumesSelfAttr(S, D, Attr); break; 3468c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3469c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 347031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 347131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3472b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3473b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 34741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSReturnsRetainedAttr(S, D, Attr); break; 3475b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 34766f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 34771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleReqdWorkGroupSize(S, D, Attr); break; 34786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 3479521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 34801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleInitPriorityAttr(S, D, Attr); break; 3481521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 34821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; 34831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_MsStruct: handleMsStructAttr (S, D, Attr); break; 34841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; 34851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; 3486742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian case AttributeList::AT_arc_weakref_unavailable: 3487742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian handleArcWeakrefUnavailableAttr (S, D, Attr); 3488742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian break; 34891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; 34901b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; 34911b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; 34921b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); 3493026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 34941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; 34951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; 34961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; 3497803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 34981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleTransparentUnionAttr(S, D, Attr); 3499803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 35000db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 35011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCExceptionAttr(S, D, Attr); 35020db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 3503d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 35041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCMethodFamilyAttr(S, D, Attr); 3505d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 35061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nsobject: handleObjCNSObject (S, D, Attr); break; 35071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; 35081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; 35091b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; 35101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; 35111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; 35121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; 35131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; 35141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; 3515bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 351605f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 351705f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 35187255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 35191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNoInstrumentFunctionAttr(S, D, Attr); 35207255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 352104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 352204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 352304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 3524f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 352552fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3526414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: 35271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleCallConvAttr(S, D, Attr); 352804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 3529f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 35301b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOpenCLKernelAttr(S, D, Attr); 3531f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 353211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 35331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleUuidAttr(S, D, Attr); 353411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 3535fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3536fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // Thread safety attributes: 3537fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_guarded_var: 3538fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr); 3539fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3540fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_pt_guarded_var: 3541fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr, /*pointer = */true); 3542fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3543fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_scoped_lockable: 3544fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr, /*scoped = */true); 3545fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3546fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_no_thread_safety_analysis: 3547fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleNoThreadSafetyAttr(S, D, Attr); 3548fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3549fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_lockable: 3550fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr); 3551fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3552db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_guarded_by: 3553db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr); 3554db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3555db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_pt_guarded_by: 3556db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr, /*pointer = */true); 3557db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3558db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_lock_function: 3559db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr, /*exclusive = */true); 3560db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3561db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_locks_required: 3562db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); 3563db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3564db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_trylock_function: 3565db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); 3566db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3567db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_lock_returned: 3568db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockReturnedAttr(S, D, Attr); 3569db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3570db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_locks_excluded: 3571db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksExcludedAttr(S, D, Attr); 3572db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3573db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_lock_function: 3574db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr); 3575db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3576db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_locks_required: 3577db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr); 3578db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3579db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_trylock_function: 3580db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr); 3581db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3582db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_unlock_function: 3583db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleUnlockFunAttr(S, D, Attr); 3584db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3585db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_before: 3586db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */true); 3587db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3588db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_after: 3589db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */false); 3590db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3591fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3592803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 359382d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 359482d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 359582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 35967d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 35977d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 3598803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 3599803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3600803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3601803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 360260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 360360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 360460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 360560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 36061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, 36071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr, 360860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 360960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 361060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 361160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 361260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 361360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 361460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 361560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 361660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 36171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessNonInheritableDeclAttr(S, scope, D, Attr); 361860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 361960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 36201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessInheritableDeclAttr(S, scope, D, Attr); 362160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 362260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 3623803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 3624803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 3625f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 362660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 362760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 362811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 36291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); 363011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 363111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 363211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 363311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 363411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 363560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 363611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 3637dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 363811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 3639803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3640803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3641803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 3642e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 3643e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 3644900693b715b3832a42ae87157332baece94ccdd8Eli FriedmanNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, 3645900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SourceLocation Loc) { 36467b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 3647e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 3648e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 3649900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FunctionDecl *NewFD; 3650900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Missing call to CheckFunctionDeclaration(). 3651900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Mangling? 3652900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the qualifier info correct? 3653900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the DeclContext correct? 3654900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 3655900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Loc, Loc, DeclarationName(II), 3656900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->getType(), FD->getTypeSourceInfo(), 3657900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SC_None, SC_None, 3658900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isInlineSpecified*/, 3659900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->hasPrototype(), 3660900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isConstexprSpecified*/); 3661900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewD = NewFD; 3662900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3663900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (FD->getQualifier()) 3664c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 3665900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3666900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // Fake up parameter variables; they are declared as if this were 3667900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // a typedef. 3668900693b715b3832a42ae87157332baece94ccdd8Eli Friedman QualType FDTy = FD->getType(); 3669900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { 3670900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SmallVector<ParmVarDecl*, 16> Params; 3671900693b715b3832a42ae87157332baece94ccdd8Eli Friedman for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), 3672900693b715b3832a42ae87157332baece94ccdd8Eli Friedman AE = FT->arg_type_end(); AI != AE; ++AI) { 3673900693b715b3832a42ae87157332baece94ccdd8Eli Friedman ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); 3674900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Param->setScopeInfo(0, Params.size()); 3675900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Params.push_back(Param); 3676900693b715b3832a42ae87157332baece94ccdd8Eli Friedman } 3677900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewFD->setParams(Params.data(), Params.size()); 3678b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3679e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 3680e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 3681ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 3682a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 368316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 368416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 3685b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 3686b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 3687c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 3688b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3689e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3690e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 3691e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3692e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 3693e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 3694e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 36957b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 3696c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 3697c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 3698c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 3699c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 3700900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); 3701cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 3702cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 3703cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3704c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 3705c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 3706c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 3707c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 3708c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 3709c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 3710c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 3711c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 3712cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3713e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3714e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3715e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 37160744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 37170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 37180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 371960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 372060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 3721d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 3722d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 372331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (Inheritable) { 372431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor LoadExternalWeakUndeclaredIdentifiers(); 372531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (!WeakUndeclaredIdentifiers.empty()) { 372631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 372731e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (IdentifierInfo *Id = ND->getIdentifier()) { 372831e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 372931e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor = WeakUndeclaredIdentifiers.find(Id); 373031e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 373131e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakInfo W = I->second; 373231e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor DeclApplyPragmaWeak(S, ND, W); 373331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakUndeclaredIdentifiers[Id] = W; 373431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor } 3735d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 3736e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3737e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3738e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3739e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 37400744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 37417f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 374260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3743bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 37440744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 37450744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 37460744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 37470744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 37480744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 37490744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 375060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3751bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 37520744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 37530744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 375460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 37550744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 375654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3757f85e193739c953358c865005855253af4f68a497John McCall/// Is the given declaration allowed to use a forbidden type? 3758f85e193739c953358c865005855253af4f68a497John McCallstatic bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { 3759f85e193739c953358c865005855253af4f68a497John McCall // Private ivars are always okay. Unfortunately, people don't 3760f85e193739c953358c865005855253af4f68a497John McCall // always properly make their ivars private, even in system headers. 3761f85e193739c953358c865005855253af4f68a497John McCall // Plus we need to make fields okay, too. 3762f85e193739c953358c865005855253af4f68a497John McCall if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl)) 3763f85e193739c953358c865005855253af4f68a497John McCall return false; 3764f85e193739c953358c865005855253af4f68a497John McCall 3765f85e193739c953358c865005855253af4f68a497John McCall // Require it to be declared in a system header. 3766f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); 3767f85e193739c953358c865005855253af4f68a497John McCall} 3768f85e193739c953358c865005855253af4f68a497John McCall 3769f85e193739c953358c865005855253af4f68a497John McCall/// Handle a delayed forbidden-type diagnostic. 3770f85e193739c953358c865005855253af4f68a497John McCallstatic void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, 3771f85e193739c953358c865005855253af4f68a497John McCall Decl *decl) { 3772f85e193739c953358c865005855253af4f68a497John McCall if (decl && isForbiddenTypeAllowed(S, decl)) { 3773f85e193739c953358c865005855253af4f68a497John McCall decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, 3774f85e193739c953358c865005855253af4f68a497John McCall "this system declaration uses an unsupported type")); 3775f85e193739c953358c865005855253af4f68a497John McCall return; 3776f85e193739c953358c865005855253af4f68a497John McCall } 3777f85e193739c953358c865005855253af4f68a497John McCall 3778f85e193739c953358c865005855253af4f68a497John McCall S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) 3779f85e193739c953358c865005855253af4f68a497John McCall << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); 3780f85e193739c953358c865005855253af4f68a497John McCall diag.Triggered = true; 3781f85e193739c953358c865005855253af4f68a497John McCall} 3782f85e193739c953358c865005855253af4f68a497John McCall 3783eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 3784eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 3785eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 3786eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 3787eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3788eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 3789eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 3790eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 3791eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 3792eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 3793eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3794eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 3795eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 3796eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3797eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 3798eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 3799eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 3800eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 3801eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3802eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 3803eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 380454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 380554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3806eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 3807eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 3808eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 380954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3810eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 3811eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 3812eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 3813eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 381454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3815eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 3816eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 381754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3818eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 3819eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 3820eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 382158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 38222f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 38232f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 3824a7bf7bbdb1f89c35a09bc525c6862525ae82778fArgyrios Kyrtzidis if (decl && !decl->isInvalidDecl()) { 3825eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 3826eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 38272f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 38282f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 38292f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 38302f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 38312f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 3832eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 3833eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 3834eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 38352f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 38362f514480c448708ec382a684cf5e035d3a827ec8John McCall 3837eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 38382f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 3839eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedDeprecationCheck(diag, decl); 38402f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 38412f514480c448708ec382a684cf5e035d3a827ec8John McCall 38422f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 3843eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 38442f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 3845f85e193739c953358c865005855253af4f68a497John McCall 3846f85e193739c953358c865005855253af4f68a497John McCall case DelayedDiagnostic::ForbiddenType: 3847f85e193739c953358c865005855253af4f68a497John McCall handleDelayedForbiddenType(S, diag, decl); 3848f85e193739c953358c865005855253af4f68a497John McCall break; 384954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 385054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 385154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 385254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 385358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 3854eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 385529233802236f7fe1db20e00eca4f5cc8f3f64adeDouglas Gregor DD.Stack[i].Destroy(); 385658e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 3857eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 38582f514480c448708ec382a684cf5e035d3a827ec8John McCall} 38592f514480c448708ec382a684cf5e035d3a827ec8John McCall 38602f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 38612f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 38620a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 38632f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 38642f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 38652f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 38662f514480c448708ec382a684cf5e035d3a827ec8John McCall} 38672f514480c448708ec382a684cf5e035d3a827ec8John McCall 38689c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 38692f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 38702f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 38712f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 38722f514480c448708ec382a684cf5e035d3a827ec8John McCall 38732f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 3874ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 3875c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 3876ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 3877ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 3878c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 3879c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 3880ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 388154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 388254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 38835f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, 38848e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 388589ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian const ObjCInterfaceDecl *UnknownObjCClass) { 388654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 3887eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 3888eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, Message)); 388954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 389054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 389154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 389254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 389354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 389454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 3895ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 3896c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 3897c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 38988e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 3899743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 39008e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 390189ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian else { 39028e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 390389ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); 390489ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian } 39058e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 390654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 3907