SemaDeclAttr.cpp revision 07d7e7a6b10f798459f350b792713db2fb3e9365
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" 18acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 19acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 20fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 229c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 23797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 259c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 27e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 28e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 29e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 30e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 31a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 32a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 34a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 36a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 38a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 42bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 45755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 466217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 47d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 48183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 523568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 54d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 57a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 58a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 59a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 60a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 61d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 62d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 63a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 64a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 65d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 663568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 67620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 68620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 69620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 70a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 71620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 72620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 73620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 74620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 75620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 76620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 77620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 78d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 79620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 80620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 81d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 83620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 84a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 85620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 8672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 87620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 88d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 89d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 90d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 913568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 923568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 93d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 94d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 95d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 96a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 9789951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 9872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 99d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 100d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 10189951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 1023568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1033568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 104a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 10589951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 10672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 107d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 108d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 109bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11089951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1113568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1123568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 113a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 119a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 120d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 12172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1223568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 123d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 124db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 125d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1263568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1273568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1283568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1293568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruthstatic bool isInstanceMethod(const Decl *d) { 13107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(d)) 13207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 13307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 13407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 13507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 137183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 138b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 140bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 141506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 142506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 144bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 145506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 146bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 152085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 154085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 155085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 156085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1576217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 158085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 159085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 160bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 161085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 162465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 163085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 164085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 165085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 166085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 167085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 168e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 169e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 170e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 171e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 176bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 1779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 178545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 179545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 180803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 181545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 183bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 1879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 1899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 190f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 191f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 192f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 193f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 1949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 1959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 1969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 1979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 1999cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 2009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 2016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 2049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 2059ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 2069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 207ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 208a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 209bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 215803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 217545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 221bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 223cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 228803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 229fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 23008631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 232cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2343c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 23896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 23996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 24296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 243bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 24563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 24663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 247cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 24863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 24963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 25063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_ibaction) << Attr.getName(); 25263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 25363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 25563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 25663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 25763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 25863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 25963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 26063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 26163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 262efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 263efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 264cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 26563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 266efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 26763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 26863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 26996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 27096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 271857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 272857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 273857e918a8a40deb128840308a318bf623d68295fTed Kremenek 274857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 275a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 276857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 277857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 278857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 279857e918a8a40deb128840308a318bf623d68295fTed Kremenek 280857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 281857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 282857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 283857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 284857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 285857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 2863a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 2873a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 2883a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2893a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 2903a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2913a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2923a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 2933a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 2943a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2953a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 2963a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2973a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2983a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 299a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 300a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 301a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 3023a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 303b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 304a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 305a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 306a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 307a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 308a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 309b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 310a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 311a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 312a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 313a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 314a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 315a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 316a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 317a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 318a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 319cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 320cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 321857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 322857e918a8a40deb128840308a318bf623d68295fTed Kremenek 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 324bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 325bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 326d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 327fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3285dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 329eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 330eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 331bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 33207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 33307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 33407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 33507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 338eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 339bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 340eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 341eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 343bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 344eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 345f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 346eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 347ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 348ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 349fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 350fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 351eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 352eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 353bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 354eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 355bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 356eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 357fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 35830bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 359eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 360eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 361bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 362465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 36307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 36407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 36507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 36607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 36707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 36807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 36907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 37007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 37107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 372eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 373eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 374bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump QualType T = getFunctionOrMethodArgType(d, x); 375dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 376eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 377c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 378fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3797fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 380eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 381bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 382eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 383eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 384bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 385bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 386bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3877fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 38846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 38946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 390dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 391d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 392ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian else if (const RecordType *UT = T->getAsUnionType()) { 393ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 394ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 395ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 396ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 397ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian T = it->getType(); 398ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (T->isAnyPointerType() || T->isBlockPointerType()) { 399ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian NonNullArgs.push_back(I); 400ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian break; 401ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 402ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 403ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 404ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 40546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 406bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 407ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 40860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 40960acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 41060acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 41160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 41260acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 4137fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 41460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 415eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 4167fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 4177fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 4187fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 419dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 420cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 421cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 422eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 423eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 424dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 425dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 426dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 427dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 428dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 429dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 430dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 4312a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 4322a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 433dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 434dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 435dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 436dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 437dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 438dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 439dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 440cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4412a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4422a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 443cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 444dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 445dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 447dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4482a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4492a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 450cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4552a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4562a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 457cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 458dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 459dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4632a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4642a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4652a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4662a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 467dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 468dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 469dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 470dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) << AL.getName() 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << 0 /*function*/; 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 47507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 47607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 47707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 47807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 482dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 483dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 484dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4882a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 4892a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 490dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 491dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(*I); 492dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 495dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 496dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 498dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 502dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 503dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 504dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 505dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 506dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 50807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 50907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 51007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 51107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 51207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 51307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 51407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 51507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 51607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 517dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 518cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 519cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 523dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 525cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 532cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 533dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 535dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(AL.getArg(0)); 536dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 537dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 538dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 539dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 540dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 541dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 542dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 543dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 544dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 545dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 546dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5472a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5482a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 549dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 550dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 551dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 552cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 553cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i = d->specific_attr_begin<OwnershipAttr>(), 554cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt e = d->specific_attr_end<OwnershipAttr>(); 555cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 556cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 557cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 558cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 559cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 560cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 561cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 562dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 563dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 564dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 565dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 566dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 567dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 568dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 569dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 570dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 571dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 572cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 573cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 574cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 575cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 576dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 577cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 578cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 579cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 580dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 581dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 58211e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic bool isStaticVarOrStaticFunciton(Decl *D) { 58311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 584d931b086984257de68868a64a235c2b4b34003fbJohn McCall return VD->getStorageClass() == SC_Static; 58511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 586d931b086984257de68868a64a235c2b4b34003fbJohn McCall return FD->getStorageClass() == SC_Static; 58711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 58811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 58911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59011e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 59111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 59211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 59311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 59411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 59511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 59611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 59811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 59911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 60011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 60111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 60211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 60311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 60411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 60511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 60611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 6077a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl const DeclContext *Ctx = d->getDeclContext()->getRedeclContext(); 6087a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 6097a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 6107a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl dyn_cast<NamedDecl>(d)->getNameAsString(); 6117a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 61211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 61311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 61411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 61511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 61611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 61711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 61811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 61911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 62011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 62111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 62211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 62311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 62411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 62511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 62611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 62711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 62811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 62911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 63011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 63111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 63211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isStaticVarOrStaticFunciton(d)) { 63311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 63411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 63511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 63611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 63711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 63811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 63911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 64011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 64111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 64211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 64311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 64411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 64511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 64611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 64711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 64811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 64911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 65011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 65111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 65211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 65311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 654cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, Str->getString())); 65511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 65611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 657cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 65811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 65911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 660803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 662545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6633c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 666bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 667545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 6686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 670bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 672fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 6746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 676bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 678bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 679cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, Str->getString())); 6806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 682dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbarstatic void HandleNakedAttr(Decl *d, const AttributeList &Attr, 683dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar Sema &S) { 684dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 685dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (Attr.getNumArgs() != 0) { 686dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 687dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 688dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 689dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 690dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (!isa<FunctionDecl>(d)) { 691dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 692dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar << Attr.getName() << 0 /*function*/; 693dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 694dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 695dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 696dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar d->addAttr(::new (S.Context) NakedAttr(Attr.getLoc(), S.Context)); 697dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 698dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 699bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 700af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 701dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 702af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 7033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 704af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 705af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 7065bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 707c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 7085bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 709dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar << Attr.getName() << 0 /*function*/; 7105bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 7115bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 712bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 713cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 714af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 715af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 71676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 717dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 71876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 71976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 72076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 72176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7232cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 7241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 7252cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 726cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 7272cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 7282cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 729fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 730fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 7312cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 73276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 73376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 734b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 735b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek /* Diagnostics (if any) was emitted by Sema::ProcessFnAttr(). */ 736b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek assert(Attr.isInvalid() == false); 737b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) NoReturnAttr(Attr.getLoc(), S.Context)); 738b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 739b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 740b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 741b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek Sema &S) { 742b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 743b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 744b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 745b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 746545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 747e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 748b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 7496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 750b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 75119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 75219c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 7533ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 7543ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 755e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 756e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 757b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 758b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek << Attr.getName() << 0 /*function*/; 759b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 76019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 7616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 762b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 763b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 7646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 76635cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 76735cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 76835cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 76935cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 77035cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 77135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 77235cc9627340b15232139b3c43fcde5973e7fad30John Thompson According to the PPU ABI specifications, a class with a single member of vector type is returned in 77335cc9627340b15232139b3c43fcde5973e7fad30John Thompson memory when used as the return value of a function. This results in inefficient code when implementing 77435cc9627340b15232139b3c43fcde5973e7fad30John Thompson vector classes. To return the value in a single vector register, add the vecreturn attribute to the class 77535cc9627340b15232139b3c43fcde5973e7fad30John Thompson definition. This attribute is also applicable to struct types. 77635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 77735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 77835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 77935cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 78035cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 78135cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 78235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 78335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 78435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 78535cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 78635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 78735cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 78835cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 78935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 79035cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 79101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<RecordDecl>(d)) { 79235cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 79335cc9627340b15232139b3c43fcde5973e7fad30John Thompson << Attr.getName() << 9 /*class*/; 79435cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 79535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 79635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 79735cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 79835cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 79935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 80035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 80135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 80201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson RecordDecl *record = cast<RecordDecl>(d); 80301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 80401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 80501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 80601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 80701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 80801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 80901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 81001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 81101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 81201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 81301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 81401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 81501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson for (RecordDecl::field_iterator iter = record->field_begin(); iter != record->field_end(); iter++) { 81601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 81701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 81801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 81901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 82001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 82101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 82201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 823cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 82435cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 82535cc9627340b15232139b3c43fcde5973e7fad30John Thompson 826bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 827bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 828bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 82904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 830bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 831bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 832bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 833bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 834bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 83573798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 83673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 83773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 8383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 83973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 84073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 841bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 842aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 843aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall !isa<TypeDecl>(d)) { 844fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8455dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 84673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 84773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 848bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 849cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 85073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 85173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 852b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 853b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 854b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 855b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 856b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 857b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 858bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 859b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 860186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 861b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 862b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 863b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 864b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 865b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8665dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 867b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 868b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 869bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 870cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 871b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 872b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 8733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 876fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 877fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 879bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 885ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 886ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 887fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 8893068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 893bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 894c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 895fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8965dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 900cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, priority)); 9013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 9023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 9053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 906fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 907fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 9083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 909bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 9103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 9123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 9133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 9143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 915ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 916ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 917fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 9193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 9223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 923bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9246782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 925fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9265dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 930cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, priority)); 9313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 9323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 933803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 935c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian int noArgs = Attr.getNumArgs(); 936c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (noArgs > 1) { 937c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian S.Diag(Attr.getLoc(), 938c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian diag::err_attribute_wrong_number_arguments) << "0 or 1"; 939c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 940c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 941c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 942c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian StringLiteral *SE; 943c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (noArgs == 1) { 944c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 945c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SE = dyn_cast<StringLiteral>(ArgExpr); 946c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 947c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian S.Diag(ArgExpr->getLocStart(), 948c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian diag::err_attribute_not_string) << "deprecated"; 949c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 950c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 9516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 952c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 953c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SE = StringLiteral::CreateEmpty(S.Context, 1); 954bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 955c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian d->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context, 956c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SE->getString())); 9576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 959bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 960bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 961c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian int noArgs = Attr.getNumArgs(); 962c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (noArgs > 1) { 963c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << "0 or 1"; 964bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 965bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 966c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 967c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian StringLiteral *SE; 968c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (noArgs == 1) { 969c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 970c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian SE = dyn_cast<StringLiteral>(ArgExpr); 971c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 972c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian S.Diag(ArgExpr->getLocStart(), 973c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 974c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 975c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 976c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 977c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian else 978c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian SE = StringLiteral::CreateEmpty(S.Context, 1); 979c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian d->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context, 980c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian SE->getString())); 981bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 982bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 983803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 985545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 9863c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 989bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 990545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 9916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 9926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 993bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 995fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 9976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 999bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1000c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 1001cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1002bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1003c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1004cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1005c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1006cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1007c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1008cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1009c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1010cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 10116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 101208631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 10136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1015bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1016cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 10176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 10200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 10210db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 10220db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 10230db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 10240db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1025bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 10270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 10280db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 10290db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 10300db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1031bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1032cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 10330db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 10340db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 10350db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 1036fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 10372b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1038fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1039fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 10400db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1041fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1042fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 10436217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1044fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1045fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1046fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1047fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1048cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 1049fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1050fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1051bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 1052f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1053f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 10542b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1055f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1056f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1057f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1058f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1059f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1060f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1061f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1062f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1063cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 1064f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1065f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 10669eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1067bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1068fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 10693c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 10709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 10719eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1072bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10739eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 10743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 10759eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 10769eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1077bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1078cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 107992e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 10809eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 10819eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1082fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 10833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 10849eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 10859eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1086bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1087cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 10889eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 10899eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 1090770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1091770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1092770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1093fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 1094fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 1095770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1096bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1097bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1098770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1099770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 1100770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 1101770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1102ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1103ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1104fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1106770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1107770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1108770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1109bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1110770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1111fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1112fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1113770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1114770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1115770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1116770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1117770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1118770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 1119770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 1120770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1121ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1122ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1123fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11243c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1125770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1126770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1127770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1128bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1129770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1130770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1131770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1132fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1133fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1134770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1135770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1136770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1137770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1138770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1139183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1140897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1141bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1142897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1143897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1144897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1145897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1146bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1147897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 11483bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1149770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1150bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1151770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1152770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 11533bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1154770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 11552f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 11562f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1157bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1158bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 11592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 11602f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 11612f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1162daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1163bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1164183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 11652f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 11663bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 11673bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 11682f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 11692f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1170ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 11712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1172ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 11732f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 11742f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1175770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1176fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1177ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 1178770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1179770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1180cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, nullPos)); 1181770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1182770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1183026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1184026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1185026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1186026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1187026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1188026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1189026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1190f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1191026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11925dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1193026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1194026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1195bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1196f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1197f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1198f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1199f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1200f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1201f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1202f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1203f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1204f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1205f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1206f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1207f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1208cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1209026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1210026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1211026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 12126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1213545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12143c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12176e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1218f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 121911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (isStaticVarOrStaticFunciton(D)) { 1220f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 1221f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 1222f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1223f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1224f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 12256e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 12266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 12276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 12285dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 12296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 12306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1231bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1232cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakAttr(Attr.getLoc(), S.Context)); 12336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 12366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 12376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 12386e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12396e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1240bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 12416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 12426e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 12436e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 12446e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 12456e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 12466e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 124706a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1248d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1249d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 12501c90f4dc686ab872013544664c797604a309c563Mike Stump return; 12515f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1252c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 12533be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1254c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1255c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 12563be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian << Attr.getName() << 2 /*variable and function*/; 12573be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 12586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 12596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 12606e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 12616e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1262bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 12636e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 12646e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 12656e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 12666e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 12676e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1268cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 12696e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 12706e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 12716f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 12726f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 12736f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 12746f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 12752b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12766f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 12776f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 12786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 12796f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 12806f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 12816f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 12826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1283ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1284ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 12856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 12866f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 12876f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 12886f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 12896f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 12906f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1291cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1292cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 12936f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 12946f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 12956f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1296026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 129717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 129817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 129917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 130017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 130117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 130217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 130317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 130417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 1305797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1306797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 130717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1308797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 130917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 131017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 13111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1312797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1313bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1314a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1315a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1316a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1317797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1318797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 13191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1320a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1321a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1322a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1323a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1324a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1325a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1326cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, SE->getString())); 132717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 132817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 13296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1330803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1332545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 13333c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 13346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1336bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1337cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 13386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1340232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1341232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1342232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 13433c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1344232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1345232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1346bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1347cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1348232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1349232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1350232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1351232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1352232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 13533c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1354232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1355232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1356bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1357cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1358232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1359232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1360f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1361bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1362f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1363f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1364f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1365bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1366f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1367f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1368f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1369f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1370bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1371f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1372bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1373f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1374f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1375f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1376f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1377bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1378f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1379c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1380c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: The lookup source location should be in the attribute, not the 1381c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // start of the attribute. 1382f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1383c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor = S.LookupSingleName(S.TUScope, Attr.getParameterName(), Attr.getLoc(), 1384f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall Sema::LookupOrdinaryName); 1385f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 138689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1387f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1388f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1389f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1390bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1391f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1392f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 139389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1394f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1395f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1396f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1397f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1398f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 139989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1400f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1401f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1402f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1403bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 140489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 140589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 140689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 140789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 14081c23e91ef66688d20868b6bab3b5589a119eb603John McCall if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1409bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 141089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 141189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 141289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 141389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1414bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1415cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1416f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1417f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1418bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1419bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1420bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 14225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 14235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 14245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 14255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 14265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 14285b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 14295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 143007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 143107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 143207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 143307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 143407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 14355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 143607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 14375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 14385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 14395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1440ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1441ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 14425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 14435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 14445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 14455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1446bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 14485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 14495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 14505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 14515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1452bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1454bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 145507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 145607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 145707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 145807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 145907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 146007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 146107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 146207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 146307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 14645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 14655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1466bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 14685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 14695b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 14705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 14716217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 14725b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 14735b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1474bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 14755b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 14765b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1477bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14785b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 14795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 14805b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 14815b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 14826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 14835b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 14845b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1485bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 14865b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 14875b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1488bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1489bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 149007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth d->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, 149107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 14925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 14935b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 14942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 14952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 14962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 14972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 14982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 14993c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 15002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 15012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 15022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 15032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 15042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 15052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 15062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 15072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 15082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 15092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 15102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 15112b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 15122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 15132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 15142b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 15152b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 15162b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 15172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 15182b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 15192b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 15202b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1521bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1522bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 15233c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 15243c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 15252b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 15262b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 15272b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1528521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1529521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1530521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1531521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1532521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1533521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1534521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1535521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1536521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1537b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1538b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1539b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1540b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1541b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1542b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1543b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1544b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1545b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1546b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1547b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1548b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1549b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1550b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1551521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1552521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1553521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1554521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1555521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1556521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Expr *priorityExpr = static_cast<Expr *>(Attr.getArg(0)); 1557b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1558521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1559521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1560521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1561521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1562521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1563521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1564521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1565521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 15669f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1567521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1568521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1569521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1570521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1571521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1572521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1573cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, prioritynum)); 1574521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1575521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1576bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1577bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1578803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 15796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1580545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1581fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 15823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 15836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1586545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 15873c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 15886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1591620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1592fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15935dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 15946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 159707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 159807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 159907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 160007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 16016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 16026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 160301eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 16046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 16062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 16072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 16082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 16092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 16102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 16113c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 16123c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 16133c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 16143c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 16152b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1616fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 161701eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 16186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1622545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1623803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1624ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1625ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1626fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 16273c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 16286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1632fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 16333c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 16346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 16386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1639bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16404a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 16414a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 164207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 164307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 164407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 16454a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 16464a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 16474a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 16484a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 16491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 16513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 16526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16532b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1654085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1655fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1656fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1657085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1658085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 16592b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1660390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1661390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1662803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1663390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1664fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1665fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 16666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1667bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 16686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 16696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1670390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1671fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1672fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 16736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1677545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1678803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1679ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1680ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1681fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 16823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 16836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 16876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 16883568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 16896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 16906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1691803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 16926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 16973c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 16982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 16996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1700fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1701fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 17026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 17056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1706fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 17073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 17086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1711cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1712cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 17132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 17146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 17156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17160b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 17170b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 17186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1719545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 17203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 17216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 17250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1726bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 17270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 17280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 17290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 17300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 17310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 17320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1733fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 17345dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 17356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1739bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 17400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 17410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 17420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 17430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 174417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 174517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 17460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 17470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 17480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 17490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1750bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 17510c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 17520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 175390cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1754bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 175590cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 175690cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 17570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 17580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1759bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 17600c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 17610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 17620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 17630c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 17640c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 17650c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 17660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 17670c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1768bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 17690c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1770bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 17710c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 17720c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 17730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1774bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 17750c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 17760c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1777bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1778bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1779bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 17806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1781cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 17826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 17836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17840b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 17856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1786545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 17873c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 17886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1790797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1791797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1792bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 17946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 17956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1796797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 17976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1799cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, SE->getString())); 18006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 18016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18024ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 18036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1804545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 18053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 18066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1808bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1809bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1810bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1811bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 18126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1813545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 1814cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 18154ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 18164ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 18174ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 18184ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth S.AddAlignedAttr(Attr.getLoc(), D, static_cast<Expr *>(Attr.getArg(0))); 18194ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 18204ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 18214ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 18224ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 18234ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 1824cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 18256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1827bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1828cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 182949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 18304ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 18314ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 18324ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 183349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 183449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1835396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 18364ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 18374ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1838396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1839396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1840396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 1841cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 1842cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 1843cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1844cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 1845cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 1846cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 1847cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 1848cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 18496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1850fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1851bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1852bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1853fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1854bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1855bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1856bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 18570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1858fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1859fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1860fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1861fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1862fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 18633c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1864fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1865fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1866fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1867fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1868fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 18690b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1870fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1871fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1872210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 187301eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1874fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1875fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1876210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1877210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1878fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1879fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1880fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 188173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1882210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1883fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 188473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 188573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 188673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 188773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 188873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 188973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 189073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 189173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 189273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 189373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 189473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 189573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 189673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 189773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 189873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 189973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1900fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1901fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1902fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1903fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1904210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 19050b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1906210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 19070b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1908fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1909fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1910210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 19110b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1912fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1913fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1914fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1915fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1916fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1917fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1918fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1919fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1920fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1921fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1922fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1923fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1924fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 192573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1926183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 192773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 192873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 19292ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 193073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 193173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 193273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 193373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 193473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 193573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 193673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 193773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 193873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1939390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1940390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1941390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1942390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1943f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1944f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1945fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1946fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1947fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 19483c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1949fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1950fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 19513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1952fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1953fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 195473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 195573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 195673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 195773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1958fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 19590b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1960fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 19610b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1962fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1963fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 196473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 196573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 196673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 196773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1968fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 19690b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1970fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 19710b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1972fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1973fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1974fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 19750b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1976fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 19770b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1978fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 19790b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1980fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1981fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1982fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 19830b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1984fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 1985aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1986aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 1987aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1988aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 1989fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1990aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1991aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 1992aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1993aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 1994fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 199573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 199673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 199773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1998f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1999f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2000f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2001f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2002f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2003f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2004f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2005f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2006f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 200773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2008fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2009fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 201073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 201173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2012fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2013fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2014fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2015ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 2016ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2017a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2018ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2019fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2020fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 20210744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 20221feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2023d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 2024d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 2025d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2026d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2027d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2028e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 20295bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 2030d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20315dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2032d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2033d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2034bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2035cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 2036d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2037d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 20381feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 20405bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 20415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20425bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 20435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2044bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2045c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 20465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20475dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 20485bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 20495bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2050bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2051cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 20525bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 20535bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 20547255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 20557255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 20567255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 20577255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 20587255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20597255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 20607255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 20617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 20627255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 20637255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20647255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner << Attr.getName() << 0 /*function*/; 20657255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 20667255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 20677255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2068cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), S.Context)); 20697255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 20707255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2071cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 207226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 207326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 207426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 207526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 207626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2077bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2078c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 2079c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 208026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20815dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 208226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 208326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2084bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 20850130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2086cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2087c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2088c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2089bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2090cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 209126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 209226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 2093e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnarastatic void HandleCallConvAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2094e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Diagnostic is emitted elsewhere: here we store the (valid) Attr 2095e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2096e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 2097e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2098e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara switch (Attr.getKind()) { 2099e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2100cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FastCallAttr(Attr.getLoc(), S.Context)); 2101e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2102e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2103cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) StdCallAttr(Attr.getLoc(), S.Context)); 2104e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2105f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2106cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ThisCallAttr(Attr.getLoc(), S.Context)); 210704633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2108e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2109cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CDeclAttr(Attr.getLoc(), S.Context)); 2110e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 211152fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 211252fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik d->addAttr(::new (S.Context) PascalAttr(Attr.getLoc(), S.Context)); 211352fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2114e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2115e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2116e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2117e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2118e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2119e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2120ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2121ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 2122ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 212355d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2124ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2125ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 212655d3aaf9a537888734762170823daf750ea9036dEli Friedman 2127ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 2128ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 21295dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2130ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2131ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 213255d3aaf9a537888734762170823daf750ea9036dEli Friedman 213355d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 213455d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2135ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2136ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 213755d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 213855d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 213955d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 214055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 214155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2142264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 2143264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 214455d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 214555d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 214655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 214755d3aaf9a537888734762170823daf750ea9036dEli Friedman 2148348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 2149264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2150264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 215155d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 215255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 215355d3aaf9a537888734762170823daf750ea9036dEli Friedman 2154cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) RegparmAttr(Attr.getLoc(), S.Context, 2155cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NumParams.getZExtValue())); 2156ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2157ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 2158bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleFinalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2159bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // check the attribute arguments. 2160bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (Attr.getNumArgs() != 0) { 2161bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2162bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2163bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 2164bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2165bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isa<CXXRecordDecl>(d) 2166bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt && (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual())) { 2167bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 2168bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 2169bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 2170bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt << Attr.getName() << 7 /*virtual method or class*/; 2171bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2172bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 21737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<FinalAttr>()) { 21777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "final"; 21787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 2180bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2181cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FinalAttr(Attr.getLoc(), S.Context)); 2182bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 2183bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 21840744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 21857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 21867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 21877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 21907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 21957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 21997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 22037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 22047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2207cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BaseCheckAttr(Attr.getLoc(), S.Context)); 22087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 22097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 22117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 22127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 22137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 22177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 22187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 22197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 22207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 22217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 22227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 22267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 22287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 22297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2232cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) HidingAttr(Attr.getLoc(), S.Context)); 22337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 22347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22357725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 22367725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 22377725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 22387725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22397725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 22427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 22437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 22447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 22457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 22467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 22477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 22517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 22537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 22547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 22557725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 22567725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2257cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OverrideAttr(Attr.getLoc(), S.Context)); 22587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 22597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 22607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 2261b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2262b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2263b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2264b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 2265b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2266b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 22675dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 2268bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22695dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 22705dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 22715dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 22725dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 22735dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 227421531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 227521531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 227621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 2277b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2278b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2279bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 2281183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 228221531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 228321531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 228421531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 2285bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 22865dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2287bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2288b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 2289b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2290b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2291b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 229231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2293cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getLoc(), S.Context)); 229431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 229531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 2296cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getLoc(), S.Context)); 229731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2298b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2299cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getLoc(), S.Context)); 2300b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2301b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2302cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getLoc(), S.Context)); 2303b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2304b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2305b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2306b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2307f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2308f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 2309f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis Attr.getKind() == AttributeList::AT_dllexport; 2310f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2311f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2312b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 23130744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 23140744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 23150744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 2316a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 2317803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 2318bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 2319bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 2320bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void ProcessDeclAttribute(Scope *scope, Decl *D, 2321bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const AttributeList &Attr, Sema &S) { 2322e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (Attr.isInvalid()) 2323e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2324e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2325f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 2326f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis // FIXME: Try to deal with other __declspec attributes! 2327290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 2328803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 232963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2330857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2331857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2332857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2333803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2334ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 23356e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 23364211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 23374211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2338bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2339bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2340803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 23417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 23427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2343bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2344af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2345b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2346bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 23477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 23487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 2349bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 23507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 23517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 23527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 23537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 23543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 23559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 23563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 23577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_final: HandleFinalAttr (D, Attr, S); break; 23587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 23597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 23607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 23617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 23627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 23637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 23647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2365dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2366dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2367dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2368dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 2369dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar case AttributeList::AT_naked: HandleNakedAttr (D, Attr, S); break; 23707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 23717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 23727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 237335cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2374b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2375b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 237631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 237731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2378b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2379b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2380b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2381b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 23826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 23836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 23846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2385521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2386521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2387521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 23887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 23897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 23907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 23917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 23927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 23937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2394026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2395026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 23967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 239711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 23987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2399803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2400803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2401803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 24020db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 24030db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 24040db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2405f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 24067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 24077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 24087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 24097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 24107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 24117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 24127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 24137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 24147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2415bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 241605f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 241705f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 24187255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 24197255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 24207255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 242104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 242204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 242304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2424f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 242552fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2426e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 242704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2428803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 242982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 243082d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 243182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 24327d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 24337d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2434803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2435803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2436803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2437803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2438803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2439803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 24409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 244111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 244211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola ProcessDeclAttribute(S, D, *l, *this); 244311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 244411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 244511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 244611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 244711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 244811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 244911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2450dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 245111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2452803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2453803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2454803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2455e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2456e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 24571eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 24587b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2459e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2460e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2461e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2462e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2463a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2464b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2465b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2466b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 2467b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2468e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2469e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2470e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2471a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 247216573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 247316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2474b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2475b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2476b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 2477b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2478e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2479e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2480e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2481e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2482e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2483e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 24847b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2485c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2486c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2487c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2488c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2489c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 2490cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 2491cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 2492cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2493c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2494c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2495c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2496c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2497c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2498c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2499c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2500c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2501cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2502e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2503e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2504e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 25050744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 25060744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 25070744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 25089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 2509d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 2510d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 2511d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (!WeakUndeclaredIdentifiers.empty()) { 2512d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2513d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (IdentifierInfo *Id = ND->getIdentifier()) { 2514d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 2515d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall = WeakUndeclaredIdentifiers.find(Id); 2516d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 2517d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakInfo W = I->second; 2518d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall DeclApplyPragmaWeak(S, ND, W); 2519d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakUndeclaredIdentifiers[Id] = W; 2520d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 2521e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2522e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2523e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2524e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 25250744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 25260744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 25279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2528bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25290744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 25300744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 25310744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 25320744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 25330744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 25340744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 25359cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2536bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25370744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 25380744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 25399cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 25400744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 254154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 254254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 254354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 254454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 254554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 254654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 2547f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallSema::ParsingDeclStackState Sema::PushParsingDeclaration() { 254854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 25492f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 255054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 255154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2552d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, Decl *D) { 255354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 255454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 255554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 25562f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 255754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 255854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 255954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 25602f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 256154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 256254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 256358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 256458e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 25652f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 25662f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 25672f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 25682f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 25692f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 25702f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 25712f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 25722f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 25732f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 257458e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 25752f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 25762f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 25772f514480c448708ec382a684cf5e035d3a827ec8John McCall 25782f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 25792f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 25802f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 25812f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 25822f514480c448708ec382a684cf5e035d3a827ec8John McCall 25832f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 25842f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 25852f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 258654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 258754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 258854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 258954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 259058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 259158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 259258e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 259358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 25942f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 25952f514480c448708ec382a684cf5e035d3a827ec8John McCall} 25962f514480c448708ec382a684cf5e035d3a827ec8John McCall 25972f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 25982f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 25992f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 26002f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 26012f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 26022f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 26032f514480c448708ec382a684cf5e035d3a827ec8John McCall} 26042f514480c448708ec382a684cf5e035d3a827ec8John McCall 26059c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 26062f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 26072f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 26082f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 26092f514480c448708ec382a684cf5e035d3a827ec8John McCall 26102f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 2611ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 2612c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 2613ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 2614ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 2615c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 2616c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 2617ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 261854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 261954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2620ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramervoid Sema::EmitDeprecationWarning(NamedDecl *D, llvm::StringRef Message, 2621c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SourceLocation Loc) { 262254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 262354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 2624c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D, 2625c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Message)); 262654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 262754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 262854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 262954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 263054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 263154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 2632ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 2633c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 2634c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 2635c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 2636c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 263754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 2638