SemaDeclAttr.cpp revision 384aff8b94bb0d1ad6c5667b90621e5699815bb2
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 14e737f5041a36d0befb39ffeed8d50ba15916d3daDouglas Gregor#include "clang/Sema/Sema.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" 22797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 26e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 27e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 28e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 29a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 30a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 32a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 34a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 36a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 40bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 426217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 43755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 45d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 46183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 493568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 503568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 52d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 53a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 54a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 57a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 58a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 59d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 60d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 61a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 62a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 63d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 643568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 65620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 66620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 67620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 68a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 69620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 70620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 71620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 72620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 73620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 74620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 75620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 76d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 77620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 78620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 79d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 80d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 81620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 82a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 83620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 8472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 85620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 86d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 87d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 88d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 903568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 91d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 92d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 93d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 94a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 9589951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 9672564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 97d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 98d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 9989951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 1003568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1013568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 102a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 10389951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 10472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 105d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 106d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 107bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10889951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1093568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1103568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 111a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 117a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 118d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 11972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1203568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 121d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 122db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 123d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1243568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1253568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1263568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1273568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 1286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 129183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 130b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 132bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 133506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 134506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 136bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 137506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 144085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1456217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 146085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 147085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 148085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1496217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 150085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 151085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 152bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 153085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 154465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 155085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 156085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 157085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 158085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 159085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 160e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 161e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 162e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 163e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 168bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 1699cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 170545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 171545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 172803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 173545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 175bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 1799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 1819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 182f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 183f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 184f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 185f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 1869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 1879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 1889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 1899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 1919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 1929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 1969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 1979ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 1989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 199ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 200a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 201bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 207803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 209545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 213bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 215cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 220803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 221fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 22208631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 224cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 22963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 23096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 23196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 23396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 23496329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 235bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 23763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 23863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 239cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 24063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 24163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 24263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 24363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_ibaction) << Attr.getName(); 24463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 24563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 24663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 24763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 24863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 24963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 25063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 25163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 25263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 254efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 255efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 256cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 25763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 258efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 25963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 26063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 26196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 26296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 263857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 264857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 265857e918a8a40deb128840308a318bf623d68295fTed Kremenek 266857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 267a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 268857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 269857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 270857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 271857e918a8a40deb128840308a318bf623d68295fTed Kremenek 272857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 273857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 274857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 275857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 276857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 277857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 2783a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 2793a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 2803a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2813a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 2823a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2833a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2843a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 2853a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 2863a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2873a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 2883a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2893a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2903a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 291a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 292a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 293a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 2943a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 295b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 296a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 297a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 298a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 299a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 300a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 301b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 302a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 303a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 304a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 305a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 306a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 307a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 308a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 309a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 310a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 311cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 312cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 313857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 314857e918a8a40deb128840308a318bf623d68295fTed Kremenek 315eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 316bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 317bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 318d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 319fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3205dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 321eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 322eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 323bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 324d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 325eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 326eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 328bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 329eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 330eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 331bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 332bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 333eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 334f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 335eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 336ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 337ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 338fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 339fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 340eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 341eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 344bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 345eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 346fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 34730bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 348eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 349eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 350bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 351465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 352eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 353eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 354bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump QualType T = getFunctionOrMethodArgType(d, x); 355dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 356eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 357c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 358fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3597fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 360eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 361bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 362eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 363eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 364bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 365bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 366bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3677fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 36846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 36946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 370dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 371d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 37246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 373bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3747fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3757fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3767fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3777fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 378eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3797fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3807fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3817fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 382dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 383cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 384cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 385eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 386eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 387dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 388dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 389dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 390dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 391dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 392dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 393dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 3942a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 3952a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 396dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 397dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 398dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 399dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 400dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 401dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 402dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 403cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4042a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4052a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 406cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 407dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 408dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 409dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 410dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4112a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4122a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 413cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 414dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 415dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 416dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 417dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4182a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4192a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 420cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 421dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 422dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 423dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 424dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 425dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4262a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4272a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4282a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4292a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 430dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 431dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 432dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 433dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) << AL.getName() 434dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << 0 /*function*/; 435dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 436dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 437dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 438dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned NumArgs = getFunctionOrMethodNumArgs(d); 439dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 440dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 441dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 442dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 443dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 444dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 445dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 447dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4482a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 4492a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 450dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(*I); 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 455dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 456dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 457dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 458dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 459dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 463dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 464dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 466dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 467dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 468dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 469cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 470cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 475dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 476cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 477dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 482dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 483cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 484dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(AL.getArg(0)); 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 490dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 491dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 492dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 495dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 496dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4982a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4992a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 502dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 503cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 504cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i = d->specific_attr_begin<OwnershipAttr>(), 505cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt e = d->specific_attr_end<OwnershipAttr>(); 506cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 507cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 508cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 509cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 510cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 511cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 512cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 515dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 516dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 517dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 518dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 519dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 523cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 524cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 525cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 526cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 528cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 529cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 530cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 532dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 53311e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic bool isStaticVarOrStaticFunciton(Decl *D) { 53411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 53511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return VD->getStorageClass() == VarDecl::Static; 53611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 53711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return FD->getStorageClass() == FunctionDecl::Static; 53811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 53911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 54011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 54111e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 54211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 54311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 54411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 54511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 54611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 54711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 54811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 54911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 55011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 55111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 55211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 55311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 55411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 55511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 55611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 55711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 55811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (const DeclContext *Ctx = d->getDeclContext()) { 55911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Ctx = Ctx->getLookupContext(); 56011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isa<TranslationUnitDecl>(Ctx) && !isa<NamespaceDecl>(Ctx) ) { 56111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 562dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(d)->getNameAsString(); 56311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 56411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 56511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 56611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 56711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 56811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 56911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 57011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 57111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 57311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 57511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 57611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 57711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 57911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 58011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 58111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 58211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 58311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 58411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 58511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isStaticVarOrStaticFunciton(d)) { 58611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 58711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 58811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 58911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 59011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 59211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 59311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 59411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 59611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 59711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 59811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 59911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 60111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 60211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 60311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 60411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 60511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 60611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 607cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, Str->getString())); 60811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 60911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 610cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 61111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 61211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 613803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 615545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6163c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 619bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 620545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 6216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 623bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 625fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 6276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 629bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 631bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 632cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, Str->getString())); 6336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 635bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 636af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 637af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 638af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 6393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 640af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 641af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 6425bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 643c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 6445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 6455dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 6465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 6475bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 648bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 649cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 650af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 651af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 65276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 65376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn // check the attribute arguments. 65476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 65576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 65676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 65776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 6581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6592cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 6601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 6612cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 662cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 6632cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 6642cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 665fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 666fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 6672cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 66876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 66976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 670b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 671b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek /* Diagnostics (if any) was emitted by Sema::ProcessFnAttr(). */ 672b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek assert(Attr.isInvalid() == false); 673b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) NoReturnAttr(Attr.getLoc(), S.Context)); 674b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 675b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 676b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 677b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek Sema &S) { 678b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 679b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 680b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 681b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 682545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 683e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 684b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 6856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 686b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 68719c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 68819c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 6893ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 6903ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 691e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 692e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 693b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 694b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek << Attr.getName() << 0 /*function*/; 695b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 69619c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 6976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 698b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 699b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 7006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 70235cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 70335cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 70435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 70535cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 70635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 70735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 70835cc9627340b15232139b3c43fcde5973e7fad30John Thompson According to the PPU ABI specifications, a class with a single member of vector type is returned in 70935cc9627340b15232139b3c43fcde5973e7fad30John Thompson memory when used as the return value of a function. This results in inefficient code when implementing 71035cc9627340b15232139b3c43fcde5973e7fad30John Thompson vector classes. To return the value in a single vector register, add the vecreturn attribute to the class 71135cc9627340b15232139b3c43fcde5973e7fad30John Thompson definition. This attribute is also applicable to struct types. 71235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 71335cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 71435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 71535cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 71635cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 71735cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 71835cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 71935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72035cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 72135cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 72235cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 72335cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 72435cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 72535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 72635cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 72735cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (!isa<CXXRecordDecl>(d)) { 72835cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 72935cc9627340b15232139b3c43fcde5973e7fad30John Thompson << Attr.getName() << 9 /*class*/; 73035cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 73135cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 73235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 73335cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 73435cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 73535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 73635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 73735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 738cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 73935cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 74035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 741bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 742bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 743bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 74404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 745bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 746bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 747bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 748bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 749bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 75073798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 75173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 75273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 7533c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 75473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 75573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 756bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 757aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 758aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall !isa<TypeDecl>(d)) { 759fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7605dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 76173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 76273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 763bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 764cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 76573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 76673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 767b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 768b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 769b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 770b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 771b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 772b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 773bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 774b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 775186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 776b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 777b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 778b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 779b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 780b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7815dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 782b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 783b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 784bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 785cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 786b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 787b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 7883068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 7893068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 7903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 791fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 792fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 7933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 794bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 7953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 7963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 7973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 7983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 7993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 800ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 801ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 802fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 8043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 808bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 809c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 810fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8115dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 815cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, priority)); 8163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8183068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 821fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 822fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 824bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 830ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 831ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 832fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8333c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 8343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 838bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8396782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 840fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8415dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 845cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, priority)); 8463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 848803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 850545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 854bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 855cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context)); 8566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 858bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 859bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 860bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 861bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 862bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 863bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 864bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 865cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context)); 866bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 867bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 868803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 870545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 8713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 8726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 874bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 875545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 8766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 8776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 878bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 880fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 8813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 8826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 884bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 885c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 886cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 887bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 888c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 889cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 890c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 891cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 892c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 893cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 894c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 895cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 8966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 89708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 8986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 900bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 901cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 9026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9040db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 9050db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 9060db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 9070db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9080db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9090db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 910bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 9120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 9130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 9140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9150db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 916bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 917cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 9180db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 9190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 9200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 921fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 9222b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 923fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 924fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 9250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 926fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 927fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 9286217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 929fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 930fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 931fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 932fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 933cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 934fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 935fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 936bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 937f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 938f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 9392b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 940f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 941f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 942f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 943f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 944f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 945f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 946f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 947f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 948cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 949f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 950f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 9519eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 952bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 953fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 9559eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9569eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 957bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9589eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 9593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9609eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9619eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 962bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 963cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 96492e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 9659eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 9669eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 967fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 9683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 9699eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 971bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 972cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 9739eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 9749eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 975770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 976770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 977770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 978fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 979fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 980770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 981bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 982bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 983770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 984770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 985770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 986770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 987ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 988ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 989fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 991770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 992770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 993770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 994bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 995770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 996fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 997fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 998770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 999770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1000770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1001770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1002770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1003770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 1004770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 1005770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1006ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1007ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1008fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10093c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1010770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1011770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1012770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1013bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1014770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1015770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1016770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1017fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1018fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1019770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1020770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1021770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1022770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1023770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1024183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1025897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1026bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1027897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1028897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1029897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1030897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1031bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1032897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10333bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1034770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1035bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1036770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1037770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 10383bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1039770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 10402f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 10412f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1042bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1043bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 10442f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 10452f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 10462f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1047daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1048bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1049183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 10502f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10513bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 10523bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 10532f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10542f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1055ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 10562f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1057ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 10582f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1060770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1061fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1062ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 1063770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1064770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1065cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, nullPos)); 1066770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1067770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1068026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1069026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1070026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1071026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1072026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1073026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1074026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1075f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1076026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 10775dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1078026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1079026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1080bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1081f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1082f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1083f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1084f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1085f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1086f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1087f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1088f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1089f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1090f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1091f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1092f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1093cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1094026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1095026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1096026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 10976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1098545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 10993c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11026e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1103f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 110411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (isStaticVarOrStaticFunciton(D)) { 1105f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 1106f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 1107f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1108f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1109f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 11106e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 11116e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 11126e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11135dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 11146e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11156e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1116bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1117cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakAttr(Attr.getLoc(), S.Context)); 11186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11206e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11216e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 11226e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 11236e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11246e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1125bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 11266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 11286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 11296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 11306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 11316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 113206a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1133d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1134d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 11351c90f4dc686ab872013544664c797604a309c563Mike Stump return; 11365f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1137c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 11383be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1139c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1140c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11413be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian << Attr.getName() << 2 /*variable and function*/; 11423be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 11436e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11446e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11456e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 11466e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1147bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 11486e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 11496e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 11506e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11516e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11526e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1153cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 11546e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 11556e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11566f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 11576f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 11586f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 11596f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 11602b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11616f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11626f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11636f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 11646f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 11656f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 11666f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 11676f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1168ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1169ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 11706f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 11716f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 11726f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11736f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11746f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 11756f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1176cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1177cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 11786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 11796f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 11806f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1181026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 118217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 118317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 118417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 118517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 118617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 118717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 118817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 118917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 1190797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1191797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 119217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1193797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 119417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 119517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 11961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1197797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1198bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1199a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1200a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1201a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1202797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1203797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 12041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1205a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1206a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1207a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1208a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1209a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1210a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1211cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, SE->getString())); 121217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 121317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 12146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1215803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1217545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1221bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1222cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 12236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1225232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1226232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1227232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1229232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1230232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1231bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1232cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1233232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1234232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1235232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1236232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1237232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1239232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1240232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1241bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1242cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1243232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1244232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1245f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1246bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1247f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1248f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1249f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1250bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1251f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1252f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1253f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1254f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1255bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1256f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1257bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1258f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1259f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1260f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1261f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1262bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1263f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1264c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1265c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: The lookup source location should be in the attribute, not the 1266c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // start of the attribute. 1267f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1268c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor = S.LookupSingleName(S.TUScope, Attr.getParameterName(), Attr.getLoc(), 1269f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall Sema::LookupOrdinaryName); 1270f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 127189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1272f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1273f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1274f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1275bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1276f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1277f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 127889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1279f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1280f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1281f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1282f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1283f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 128489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1285f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1286f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1287f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1288bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 128989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 129089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 129189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 129289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1293d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1294bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 129589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 129689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 129789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 129889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1299bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1300cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1301f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1302f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1303bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1304bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1305bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 13075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13085b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 13105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 13115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 13135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1315bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // FIXME: in C++ the implicit 'this' function parameter also counts. this is 1316bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // needed in order to be compatible with GCC the index must start with 1. 13175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned NumArgs = getFunctionOrMethodNumArgs(d); 13185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 13195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 13205b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 13215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1322ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1323ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 13245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1328bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 13305b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 13315b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1334bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1336bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 13385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1339bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 13415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 13425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1347bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 13485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1350bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 13515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 13525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 13535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13545b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13565b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1358bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 13595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1361bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1362bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1363cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, Idx.getZExtValue())); 13645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 13655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 13662b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 13672b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 13682b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 13692b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 13702b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 13713c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 13722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 13732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 13742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 13752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 13762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 13772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 13782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 13792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 13802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 13812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 13822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 13832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 13842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 13852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 13862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 13872b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 13882b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 13892b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 13902b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 13912b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 13922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1393bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1394bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 13953c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 13963c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 13972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 13982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 13992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1400521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1401521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1402521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1403521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1404521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1405521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1406521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1407521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1408521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1409b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1410b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1411b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1412b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1413b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1414b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1415b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1416b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1417b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1418b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1419b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1420b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1421b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1422b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1423521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1424521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1425521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1426521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1427521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1428521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Expr *priorityExpr = static_cast<Expr *>(Attr.getArg(0)); 1429b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1430521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1431521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1432521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1433521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1434521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1435521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1436521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1437521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 14389f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1439521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1440521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1441521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1442521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1443521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1444521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1445cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, prioritynum)); 1446521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1447521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1448bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1449bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1450803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1452545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1453fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 14543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 14556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1458545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 14593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 14606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1463620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1464fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14655dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 14666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14693568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 14706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 14716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 147201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 14736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 14752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 14762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 14772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 14782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 14792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 14803c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14813c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 14823c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 14833c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1485fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 148601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 14876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1491545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1492803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1493ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1494ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1495fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 14963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 14976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15004fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // FIXME: We should handle the implicit 'this' parameter in a more generic 15014fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // way that can be used for other arguments. 15024fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson bool HasImplicitThisParam = false; 15034fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(d)) { 15044fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (MD->isInstance()) { 15054fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson HasImplicitThisParam = true; 15064fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson NumArgs++; 15074fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15084fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1511fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15123c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 15176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1518bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15194a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 15204a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 15214a2614e94672c47395abcde60518776fbebec589Sebastian Redl S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 15224a2614e94672c47395abcde60518776fbebec589Sebastian Redl << "a string type" << IdxExpr->getSourceRange(); 15234a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 15244a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15254a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 15264a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 15293568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 15306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15312b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1532085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1533fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1534fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1535085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1536085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 15372b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1538390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1539390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1540803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1541390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1542fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1543fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 15446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1545bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 15476217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1548390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1549fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1550fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 15516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1555545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1556803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1557ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1558ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1559fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15603c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 15616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 15656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 15663568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 15676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 15686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1569803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 15706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 15753c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 15762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 15776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1578fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1579fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 15806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 15836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1584fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15853c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 15866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1589cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1590cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 15912b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 15926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15940b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 15950b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 15966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1597545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 15983c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 15996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16020c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 16030c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1604bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 16050c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 16060c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 16070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 16080c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 16090c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 16100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1611fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16125dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 16136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1617bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 16180c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 16190c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16200c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 16210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 162217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 162317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 16240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 16250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 16260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1628bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 16300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 163190cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1632bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 163390cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 163490cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 16350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1637bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 16390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 16400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 16410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 16420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 16430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 16440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 16450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1646bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 16470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1648bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 16490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 16500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 16510c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1652bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 16530c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 16540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1655bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1656bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1657bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 16586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1659cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 16606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16620b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1664545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 16653c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1668797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1669797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1670bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 16726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 16736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1674797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 16756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1677cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, SE->getString())); 16786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16804ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 16816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1682545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 16833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1686bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1687bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1688bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1689bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 16906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1691545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 1692cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 16934ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 16944ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 16954ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 16964ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth S.AddAlignedAttr(Attr.getLoc(), D, static_cast<Expr *>(Attr.getArg(0))); 16974ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 16984ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 16994ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 17004ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 17014ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 1702cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 17036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1705bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1706cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 170749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 17084ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 17094ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 17104ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 171149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 171249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1713396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 17144ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 17154ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1716396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1717396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1718396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 1719cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 1720cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 1721cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1722cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 1723cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 1724cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 1725cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 1726cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 17276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1728fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1729bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1730bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1731fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1732bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1733bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1734bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 17350b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1736fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1737fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1738fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1739fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1740fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 17413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1742fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1743fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1744fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1745fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1746fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 17470b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1748fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1749fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1750210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 175101eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1752fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1753fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1754210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1755210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1756fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1757fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1758fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 175973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1760210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1761fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 176273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 176373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 176473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 176573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 176673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 176773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 176873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 176973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 177073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 177173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 177273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 177373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 177473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 177573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 177673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 177773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1778fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1779fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1780fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1781fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1782210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 17830b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1784210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 17850b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1786fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1787fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1788210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 17890b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1790fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1791fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1792fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1793fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1794fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1795fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1796fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1797fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1798fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1799fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1800fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1801fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1802fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 180373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1804183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 180573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 180673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 18072ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 180873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 180973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 181073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 181173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 181273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 181373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 181473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 181573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 181673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1817390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1818390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1819390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1820390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1821f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1822f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1823fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1824fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1825fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 18263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1827fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1828fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 18293c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1830fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1831fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 183273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 183373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 183473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 183573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1836fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18370b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1838fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18390b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1840fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1841fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 184273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 184373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 184473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 184573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1846fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18470b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1848fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18490b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1850fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1851fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1852fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18530b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1854fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 18550b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1856fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1858fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1859fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1860fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18610b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1862fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 1863aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1864aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 1865aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1866aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 1867fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1868aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1869aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 1870aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1871aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 1872fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 187373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 187473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 187573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1876f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1877f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1878f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1879f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1880f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1881f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 1882f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 1883f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 1884f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 188573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1886fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1887fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 188873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 188973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1890fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1891fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1892fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1893ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1894ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 1895a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 1896ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 1897fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1898fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 18990744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 19001feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1901d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1902d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1903d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1904d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1905d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1906e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 19075bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1908d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19095dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1910d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1911d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1912bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1913cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 1914d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1915d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 19161feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 19175bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 19185bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 19195bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19205bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19215bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1922bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1923c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 19245bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19255dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 19265bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19275bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1928bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1929cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 19305bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 19315bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 19327255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 19337255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 19347255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 19357255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 19367255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19377255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19387255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19397255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 19407255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 19417255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19427255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner << Attr.getName() << 0 /*function*/; 19437255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19447255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1946cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), S.Context)); 19477255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 19487255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1949cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 195026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 195126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 195226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 195326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 195426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1955bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1956c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1957c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 195826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19595dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 196026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 196126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1962bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19630130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 1964cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1965c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1966c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1967bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1968cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 196926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 197026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1971e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnarastatic void HandleCallConvAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1972e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Diagnostic is emitted elsewhere: here we store the (valid) Attr 1973e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 1974e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 1975e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 1976e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara switch (Attr.getKind()) { 1977e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 1978cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FastCallAttr(Attr.getLoc(), S.Context)); 1979e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1980e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 1981cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) StdCallAttr(Attr.getLoc(), S.Context)); 1982e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1983f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 1984cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ThisCallAttr(Attr.getLoc(), S.Context)); 1985e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 1986cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CDeclAttr(Attr.getLoc(), S.Context)); 1987e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1988e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 1989e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 1990e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1991e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 1992e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 1993e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 1994ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1995ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 1996ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 199755d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1998ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1999ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 200055d3aaf9a537888734762170823daf750ea9036dEli Friedman 2001ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 2002ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20035dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2004ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2005ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 200655d3aaf9a537888734762170823daf750ea9036dEli Friedman 200755d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 200855d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2009ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2010ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 201155d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 201255d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 201355d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 201455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 201555d3aaf9a537888734762170823daf750ea9036dEli Friedman 2016264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 2017264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 201855d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 201955d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 202055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 202155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2022348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 2023264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2024264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 202555d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 202655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 202755d3aaf9a537888734762170823daf750ea9036dEli Friedman 2028cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) RegparmAttr(Attr.getLoc(), S.Context, 2029cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NumParams.getZExtValue())); 2030ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2031ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 2032bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleFinalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2033bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // check the attribute arguments. 2034bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (Attr.getNumArgs() != 0) { 2035bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2036bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2037bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 2038bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2039bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isa<CXXRecordDecl>(d) 2040bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt && (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual())) { 2041bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 2042bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 2043bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 2044bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt << Attr.getName() << 7 /*virtual method or class*/; 2045bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2046bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 20477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 20497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<FinalAttr>()) { 20517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "final"; 20527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 2054bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2055cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FinalAttr(Attr.getLoc(), S.Context)); 2056bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 2057bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 20580744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 20597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 20607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 20617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 20697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 20707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 20717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 20727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 20737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 20777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 20787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2081cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BaseCheckAttr(Attr.getLoc(), S.Context)); 20827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 20837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20847725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 20917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 20927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 20937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 20947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 20957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 20967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 21027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 21037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2106cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) HidingAttr(Attr.getLoc(), S.Context)); 21077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 21117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 21167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 21177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 21217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 21277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 21287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2131cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OverrideAttr(Attr.getLoc(), S.Context)); 21327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 2135b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2136b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2137b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2138b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 2139b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2140b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 21415dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 2142bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21435dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 21445dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 21455dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 21465dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 21475dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 214821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 214921531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 215021531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 2151b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2152b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2153bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21546217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 2155183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 215621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 215721531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 215821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 2159bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 21605dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2161bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2162b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 2163b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2164b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2165b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 216631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2167cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getLoc(), S.Context)); 216831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 216931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 2170cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getLoc(), S.Context)); 217131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2172b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2173cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getLoc(), S.Context)); 2174b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2175b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2176cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getLoc(), S.Context)); 2177b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2178b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2179b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2180b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2181f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2182f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 2183f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis Attr.getKind() == AttributeList::AT_dllexport; 2184f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2185f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2186b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 21870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 21880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 21890744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 2190a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 2191803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 2192bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 2193bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 2194bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void ProcessDeclAttribute(Scope *scope, Decl *D, 2195bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const AttributeList &Attr, Sema &S) { 2196e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (Attr.isInvalid()) 2197e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2198e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2199f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 2200f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis // FIXME: Try to deal with other __declspec attributes! 2201290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 2202803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 220363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2204857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2205857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2206857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2207803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2208ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 22096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 2210bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2211bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2212803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 22147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2215bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2216af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2217b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2218bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 22197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 22207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 2221bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 22227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 22237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 22247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 22257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 22263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 22279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 22283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 22297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_final: HandleFinalAttr (D, Attr, S); break; 22307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 22317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 22327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 22337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 22347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 22357725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 22367725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2237dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2238dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2239dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2240dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 22417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 22427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 22437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 224435cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2245b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2246b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 224731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 224831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2249b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2250b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2251b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2252b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 22536f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 22546f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 22556f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2256521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2257521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2258521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 22597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 22607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 22617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 22627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 22637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 22647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2265026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2266026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 22677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 226811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 22697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2270803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2271803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2272803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22730db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 22740db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 22750db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2276f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 22777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 22787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 22797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 22807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 22817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 22827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 22837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 22847725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 22857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2286bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 228705f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 228805f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 22897255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 22907255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 22917255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 229204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 229304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 229404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2295f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2296e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 229704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2298803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 229982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 230082d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 230182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 23027d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 23037d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2304803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2305803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2306803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2307803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2308803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2309803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 23109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 231111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 231211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola ProcessDeclAttribute(S, D, *l, *this); 231311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 231411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 231511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 231611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 231711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 231811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 231911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2320dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 232111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2322803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2323803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2324803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2325e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2326e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 23271eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 23287b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2329e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2330e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2331e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2332e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2333a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2334b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2335b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2336b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 2337b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2338e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2339e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2340e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2341a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 234216573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 234316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2344b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2345b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2346b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 2347b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2348e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2349e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2350e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2351e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2352e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2353e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 23547b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2355c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2356c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2357c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2358c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2359c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 2360cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 2361cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 2362cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2363c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2364c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2365c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2366c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2367c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2368c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2369c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2370c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2371cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2372e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2373e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2374e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 23750744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 23760744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 23770744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 23789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 2379e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn // Handle #pragma weak 2380e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2381e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (ND->hasLinkage()) { 2382e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakInfo W = WeakUndeclaredIdentifiers.lookup(ND->getIdentifier()); 2383e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (W != WeakInfo()) { 23847b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn // Identifier referenced by #pragma weak before it was declared 23857b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn DeclApplyPragmaWeak(S, ND, W); 2386e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakUndeclaredIdentifiers[ND->getIdentifier()] = W; 2387e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2388e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2389e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2390e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 23910744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 23920744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 23939cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2394bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23950744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 23960744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 23970744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 23980744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 23990744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 24000744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 24019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2402bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24030744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 24040744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 24059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 24060744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 240754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 240854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 240954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 241054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 241154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 241254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 241354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallAction::ParsingDeclStackState Sema::PushParsingDeclaration() { 241454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 24152f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 241654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 241754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2418d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, Decl *D) { 241954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 242054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 242154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 24222f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 242354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 242454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 242554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 24262f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 242754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 242854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 242958e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 243058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24312f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 24322f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 24332f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 24342f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 24352f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 24362f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 24372f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 24382f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 24392f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 244058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 24412f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 24422f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 24432f514480c448708ec382a684cf5e035d3a827ec8John McCall 24442f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 24452f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 24462f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 24472f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 24482f514480c448708ec382a684cf5e035d3a827ec8John McCall 24492f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 24502f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 24512f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 245254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 245354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 245454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 245554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 245658e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 245758e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 245858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 245958e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24602f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 24612f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24622f514480c448708ec382a684cf5e035d3a827ec8John McCall 24632f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 24642f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 24652f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 24662f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 24672f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 24682f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 24692f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24702f514480c448708ec382a684cf5e035d3a827ec8John McCall 24712f514480c448708ec382a684cf5e035d3a827ec8John McCallvoid Sema::HandleDelayedDeprecationCheck(Sema::DelayedDiagnostic &DD, 24722f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 24732f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 24742f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 24752f514480c448708ec382a684cf5e035d3a827ec8John McCall 24762f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 24772f514480c448708ec382a684cf5e035d3a827ec8John McCall Diag(DD.Loc, diag::warn_deprecated) 24782f514480c448708ec382a684cf5e035d3a827ec8John McCall << DD.DeprecationData.Decl->getDeclName(); 247954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 248054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 248154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::EmitDeprecationWarning(NamedDecl *D, SourceLocation Loc) { 248254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 248354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 24842f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D)); 248554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 248654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 248754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 248854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 248954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 249054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 249154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 249254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 249354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 2494