SemaDeclAttr.cpp revision 3a3400b4fdf73887e9d8b4372334bc24a858702f
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" 17acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 18acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 19fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2012bc692a78582f1cc32791325981aadcffb04c5eDaniel Dunbar#include "clang/Parse/DeclSpec.h" 21797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 25e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 26e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 27e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 28a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 29a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 31a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 33a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 35a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 39bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 416217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 42755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 436217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 44d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 45183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 483568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 493568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 503568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 51d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 52a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 53a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 54a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 57a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 58d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 59d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 60a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 61a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 62d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 633568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 64620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 65620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 66620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 67a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 68620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 69620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 70620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 71620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 72620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 73620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 74620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 75d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 76620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 77620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 78d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 79d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 80620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 81a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 82620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 8372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 84620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 85d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 86d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 87d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 883568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 90d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 91d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 92d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 93a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 9489951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 9572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 96d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 97d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 9889951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 993568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1003568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 101a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 10289951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 10372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 104d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 105d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 106bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10789951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1083568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1093568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 110a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 116a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 117d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 11872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1193568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 120d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 121db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 122d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1233568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1243568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1253568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1263568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 1276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 128183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 129b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 131bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 132506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 133506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 135bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 136506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 137bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 143085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 145085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 146085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 147085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1486217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 149085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 150085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 151bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 152085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 153465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 154085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 155085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 156085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 157085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 158085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 159e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 160e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 161e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 162e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 167bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 1689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 169545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 170545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 171803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 172545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 174bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 1789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 1809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 181f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 182f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 183f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 184f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 1859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 1869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 1879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 1889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 1909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 1919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1939cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 1959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 1969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor QualType T = S.BuildExtVectorType(curType, S.Owned(sizeExpr), Attr.getLoc()); 1979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 198ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 199a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 200bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 206803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 208545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2093c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 212bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 214a860e755f1f9f071b6a6a2f96128a6a258f5c331Anders Carlsson TD->addAttr(::new (S.Context) PackedAttr); 2156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 219803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 220fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 22108631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 223a860e755f1f9f071b6a6a2f96128a6a258f5c331Anders Carlsson FD->addAttr(::new (S.Context) PackedAttr); 2246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 22863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 22996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 23096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 23296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 23396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 234bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 23663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 23763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 23863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek d->addAttr(::new (S.Context) IBActionAttr()); 23963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 24063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 24163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 24263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_ibaction) << Attr.getName(); 24363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 24463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 24563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 24663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 24763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 24863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 25063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 25163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 253efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 254efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 25563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek d->addAttr(::new (S.Context) IBOutletAttr()); 25663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 257efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 25863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 26096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 26196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 262857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 263857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 264857e918a8a40deb128840308a318bf623d68295fTed Kremenek 265857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 266a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 267857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 268857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 269857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 270857e918a8a40deb128840308a318bf623d68295fTed Kremenek 271857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 272857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 273857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 274857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 275857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 276857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 2773a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 2783a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 2793a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2803a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 2813a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2823a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2833a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 2843a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 2853a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2863a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 2873a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2883a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2893a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 290a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 291a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 292a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 2933a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 294a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian Sema::TypeTy *TypeRep = S.getTypeName(*II, Attr.getLoc(), 295a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 296a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 297a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 298a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 299a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 300a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian QualType QT(QualType::getFromOpaquePtr(TypeRep)); 301a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 302a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 303a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 304a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 305a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 306a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 307a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 308a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 309a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 310a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian d->addAttr(::new (S.Context) IBOutletCollectionAttr(QT)); 311857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 312857e918a8a40deb128840308a318bf623d68295fTed Kremenek 313eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 314bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 315bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 316d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 317fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3185dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 319eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 320eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 321bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 322d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 325eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 326bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 328eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 329bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 330bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 331eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 332f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 333eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 334ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 335ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 336fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 337fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 338eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 339eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 340bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 341eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 344fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 34530bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 346eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 347eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 348bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 349465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 350eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 351eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 352bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump QualType T = getFunctionOrMethodArgType(d, x); 353dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 354eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 355c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 356fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3577fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 358eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 359bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 360eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 361eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 362bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 363bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 364bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3657fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 36646bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 36746bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 368dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 369d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 37046bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 371bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3727fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3737fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3747fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3757fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 376eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3777fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3787fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3797fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 380dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 3815961611172f1c210fbbaa55b3c692e13b1fc7be4Ted Kremenek d->addAttr(::new (S.Context) NonNullAttr(S.Context, start, size)); 382eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 383eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 384dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 385dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 386dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 387dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 388dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 389dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 390dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 3912a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 3922a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 393dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 394dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 395dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 396dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 397dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 398dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 399dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 4002a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose attr::Kind K; 4012a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4022a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 4032a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose K = attr::OwnershipTakes; 404dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 405dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 406dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 407dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4082a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4092a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 4102a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose K = attr::OwnershipHolds; 411dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 412dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 413dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 414dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4152a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4162a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 4172a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose K = attr::OwnershipReturns; 418dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 419dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 420dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 421dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 422dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4232a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4242a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4252a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4262a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 427dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 428dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 429dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 430dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) << AL.getName() 431dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << 0 /*function*/; 432dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 433dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 434dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 435dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned NumArgs = getFunctionOrMethodNumArgs(d); 436dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 437dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 438dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 439dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 440dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 441dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 442dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 443dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 444dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4452a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 4462a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 447dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 448dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(*I); 449dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 450dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 455dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 456dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 457dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 458dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 459dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 463dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 464dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 4662a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipTakes: 4672a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipHolds: { 468dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 469dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 470dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 4732a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose << ((K==attr::OwnershipTakes)?"ownership_takes":"ownership_holds") 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 475dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 476dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 477dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4802a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipReturns: { 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 482dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 483dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(AL.getArg(0)); 484dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 490dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 491dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 492dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4952a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4962a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 498dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 5002a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose if (K != attr::OwnershipReturns && d->hasAttrs()) { 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek for (const Attr *attr = d->getAttrs(); attr; attr = attr->getNext()) { 502dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (const OwnershipAttr* Att = dyn_cast<OwnershipAttr>(attr)) { 503dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Two ownership attributes of the same kind can't conflict, 504dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // except returns attributes. 5052a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose if (Att->getKind() != K) { 5062a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (const unsigned *I = Att->begin(), *E = Att->end(); I!=E; ++I) { 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x == *I) { 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 509dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << "ownership_*"; 510dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 511dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 512dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 515dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 516dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 517dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 518dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 519dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 5232a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipTakes: { 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (OwnershipArgs.empty()) { 525dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek d->addAttr(::new (S.Context) OwnershipTakesAttr(S.Context, start, size, 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module)); 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5322a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipHolds: { 533dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (OwnershipArgs.empty()) { 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 535dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 536dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 537dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek d->addAttr(::new (S.Context) OwnershipHoldsAttr(S.Context, start, size, 538dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module)); 539dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 540dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5412a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipReturns: { 542dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek d->addAttr(::new (S.Context) OwnershipReturnsAttr(S.Context, start, size, 543dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module)); 544dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 545dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 546dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek default: 5472a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 548dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 549dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 550dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 55111e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic bool isStaticVarOrStaticFunciton(Decl *D) { 55211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 55311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return VD->getStorageClass() == VarDecl::Static; 55411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 55511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return FD->getStorageClass() == FunctionDecl::Static; 55611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 55711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 55811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 55911e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 56011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 56111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 56211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 56311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 56411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 56511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 56611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 56711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 56811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 56911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 57011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 57111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 57211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 57311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 57411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 57511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 57611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (const DeclContext *Ctx = d->getDeclContext()) { 57711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Ctx = Ctx->getLookupContext(); 57811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isa<TranslationUnitDecl>(Ctx) && !isa<NamespaceDecl>(Ctx) ) { 57911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 580dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(d)->getNameAsString(); 58111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 58211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 58311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 58411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 58511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 58611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 58711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 58811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 58911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 59011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 59111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 59211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 59311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 59411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 59511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 59611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 59711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 59811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 59911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 60011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 60111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 60211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isStaticVarOrStaticFunciton(d)) { 60411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 60511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 60611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 60711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 60811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 61011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 61111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 61211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 61311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 61411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 61511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 61611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 61711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 61811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 61911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 62011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 62111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 62211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 62311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 62411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 62511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola d->addAttr(::new (S.Context) AliasAttr(S.Context, Str->getString())); 62611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 62711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 62811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola d->addAttr(::new (S.Context) WeakRefAttr()); 62911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 63011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 631803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 633545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6343c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 637bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 638545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 6396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 641bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 643fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6443c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 6456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 647bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 649bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6503d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) AliasAttr(S.Context, Str->getString())); 6516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 653bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 654af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 655af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 656af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 6573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 658af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 659af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 6605bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 661c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 6625bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 6635dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 6645bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 6655bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 666bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 66740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlwaysInlineAttr()); 668af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 669af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 67076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 67176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn // check the attribute arguments. 67276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 67376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 67476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 67576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 6761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6772cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 6781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 6792cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 6802cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek d->addAttr(::new (S.Context) MallocAttr()); 6812cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 6822cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 683fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 684fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 6852cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 68676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 68776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 688b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic bool HandleCommonNoReturnAttr(Decl *d, const AttributeList &Attr, 689e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Sema &S) { 6906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 691545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 692e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 693b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return false; 6946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 695d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 69619c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 69719c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 6983ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 6993ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 700e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 701e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 702e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara : diag::warn_attribute_wrong_decl_type) 703e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara << Attr.getName() << 0 /*function*/; 70419c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump return false; 70519c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 7066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 707bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 708b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return true; 709b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 710b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 711b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 712e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara /* Diagnostics (if any) was emitted by Sema::ProcessFnAttr(). */ 713e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 714e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) NoReturnAttr()); 715b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 716b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 717b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 718b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek Sema &S) { 719e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (HandleCommonNoReturnAttr(d, Attr, S)) 72040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AnalyzerNoReturnAttr()); 7216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 72335cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 72435cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 72535cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 72635cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 72735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 72835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72935cc9627340b15232139b3c43fcde5973e7fad30John Thompson According to the PPU ABI specifications, a class with a single member of vector type is returned in 73035cc9627340b15232139b3c43fcde5973e7fad30John Thompson memory when used as the return value of a function. This results in inefficient code when implementing 73135cc9627340b15232139b3c43fcde5973e7fad30John Thompson vector classes. To return the value in a single vector register, add the vecreturn attribute to the class 73235cc9627340b15232139b3c43fcde5973e7fad30John Thompson definition. This attribute is also applicable to struct types. 73335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 73435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 73535cc9627340b15232139b3c43fcde5973e7fad30John Thompson 73635cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 73735cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 73835cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 73935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 74035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 74135cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 74235cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 74335cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 74435cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 74535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 74635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 74735cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 74835cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (!isa<CXXRecordDecl>(d)) { 74935cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 75035cc9627340b15232139b3c43fcde5973e7fad30John Thompson << Attr.getName() << 9 /*class*/; 75135cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 75235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 75335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 75435cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 75535cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 75635cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 75735cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 75835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 75935cc9627340b15232139b3c43fcde5973e7fad30John Thompson d->addAttr(::new (S.Context) VecReturnAttr()); 76035cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 76135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 762bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 763bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 764bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 76504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 766bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 767bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 768bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 769bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 770bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 77173798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 77273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 77373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 7743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 77573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 77673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 777bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 778aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 779aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall !isa<TypeDecl>(d)) { 780fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7815dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 78273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 78373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 784bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 78540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnusedAttr()); 78673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 78773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 788b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 789b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 790b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 791b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 792b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 793b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 794bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 795b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 796186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 797b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 798b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 799b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 800b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 801b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8025dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 803b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 804b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 805bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 80640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UsedAttr()); 807b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 808b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 8093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 812fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 813fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 815bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8183068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 821ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 822ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 823fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8243c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 8253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 829bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 830c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 831fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8325dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 83640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstructorAttr(priority)); 8373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8393068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8413068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 842fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 843fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 845bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8483068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 851ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 852ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 853fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 8553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8573068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8583068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 859bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8606782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 861fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8625dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 86640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DestructorAttr(priority)); 8673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 869803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 871545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8723c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 875bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 87640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DeprecatedAttr()); 8776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 879bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 880bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 881bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 882bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 883bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 884bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 885bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 88640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnavailableAttr()); 887bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 888bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 889803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 891545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 8923c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 8936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 895bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 896545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 8976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 8986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 899bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 901fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 9036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 905bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 906c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 9076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 908bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 909c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 9106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 911c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 9126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 913c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 9146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 915c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 9166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 9176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 91808631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 9196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 921bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 922aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman d->addAttr(::new (S.Context) VisibilityAttr(type, false)); 9236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 9260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 9270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 9280db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9290db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9300db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 931bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9320db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 9330db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 9340db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 9350db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9360db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 937bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 93840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr()); 9390db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 9400db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 9410db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 942fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 9432b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 944fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 945fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 9460db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 947fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 948fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 9496217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 950fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 951fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 952fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 953fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 95440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr()); 955fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 956fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 957bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 958f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 959f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 9602b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 961f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 962f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 963f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 964f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 965f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 966f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 967f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 968f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 96940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr()); 970f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 971f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 9729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 973bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 974fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9753c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 9769eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9779eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 978bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9799eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 9803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9819eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9829eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 983bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9849eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 98592e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 9869eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 9879eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 988fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 9893c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 9909eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9919eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 992bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 99340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) BlocksAttr(type)); 9949eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 9959eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 996770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 997770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 998770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 999fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 1000fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 1001770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1002bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1003bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1004770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1005770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 1006770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 1007770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1008ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1009ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1010fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10113c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1012770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1013770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1014770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1015bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1016770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1017fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1018fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1019770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1020770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1021770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1022770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1023770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1024770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 1025770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 1026770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1027ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1028ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1029fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10303c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1031770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1032770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1033770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1034bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1035770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1036770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1037770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1038fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1039fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1040770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1041770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1042770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1043770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1044770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1045183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1046897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1047bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1048897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1049897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1050897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1051897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1052bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1053897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10543bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1055770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1056bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1057770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1058770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 10593bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1060770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 10612f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 10622f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1063bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1064bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 10652f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 10662f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 10672f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1068daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1069bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1070183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 10712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10723bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 10733bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 10742f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10752f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1076ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 10772f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1078ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 10792f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10802f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1081770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1082fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1083ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 1084770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1085770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 108640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) SentinelAttr(sentinel, nullPos)); 1087770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1088770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1089026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1090026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1091026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1092026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1093026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1094026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1095026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1096f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1097026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 10985dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1099026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1100026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1101bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1102f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1103f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1104f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1105f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1106f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1107f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1108f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1109f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1110f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1111f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1112f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1113f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1114d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes D->addAttr(::new (S.Context) WarnUnusedResultAttr()); 1115026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1116026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1117026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1119545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 11203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11236e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1124f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 112511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (isStaticVarOrStaticFunciton(D)) { 1126f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 1127f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 1128f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1129f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1130f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 11316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 11326e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 11336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11345dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 11356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1137bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 113840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakAttr()); 11396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11426e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 11436e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 11446e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11456e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1146bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 11476e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11486e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 11496e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 11506e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 11516e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 11526e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 115306a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1154d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1155d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 11561c90f4dc686ab872013544664c797604a309c563Mike Stump return; 11575f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1158c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 11593be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1160c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1161c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11623be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian << Attr.getName() << 2 /*variable and function*/; 11633be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 11646e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11656e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11666e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 11676e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1168bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 11696e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 11706e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 11716e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11726e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11736e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 117440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr()); 11756e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 11766e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11776f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 11786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 11796f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 11806f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 11812b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 11856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 11866f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 11876f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 11886f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1189ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1190ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 11916f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 11926f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 11936f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11946f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11956f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 11966f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 119740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(WGSize[0], WGSize[1], 11986f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 11996f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 12006f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1201026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 120217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 120317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 120417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 120517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 120617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 120717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 120817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 120917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 1210797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1211797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 121217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1213797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 121417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 121517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1217797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1218bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1219a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1220a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1221a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1222797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1223797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1225a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1226a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1227a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1228a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1229a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1230a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 12313d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek D->addAttr(::new (S.Context) SectionAttr(S.Context, SE->getString())); 123217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 123317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 12346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1235803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1237545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1241bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 124240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoThrowAttr()); 12436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1245232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1246232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1247232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12483c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1249232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1250232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1251bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 125240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstAttr()); 1253232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1254232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1255232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1256232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1257232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12583c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1259232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1260232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1261bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 126240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) PureAttr()); 1263232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1264232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1265f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1266bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1267f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1268f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1269f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1270bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1271f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1272f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1273f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1274f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1275bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1276f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1277bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1278f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1279f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1280f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1281f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1282bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1283f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1284c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1285c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: The lookup source location should be in the attribute, not the 1286c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // start of the attribute. 1287f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1288c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor = S.LookupSingleName(S.TUScope, Attr.getParameterName(), Attr.getLoc(), 1289f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall Sema::LookupOrdinaryName); 1290f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 129189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1292f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1293f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1294f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1295bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1296f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1297f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 129889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1299f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1300f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1301f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1302f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1303f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 130489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1305f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1306f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1307f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1308bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 130989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 131089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 131189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 131289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1313d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1314bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 131589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 131689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 131789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 131889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1319bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 132040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CleanupAttr(FD)); 1321f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1322f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1323bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1324bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1325bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 13275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13285b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 13305b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 13315b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 13335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1335bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // FIXME: in C++ the implicit 'this' function parameter also counts. this is 1336bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // needed in order to be compatible with GCC the index must start with 1. 13375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned NumArgs = getFunctionOrMethodNumArgs(d); 13385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 13395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 13405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 13415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1342ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1343ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 13445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1348bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 13505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 13515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1354bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1356bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 13585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1359bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 13615b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 13625b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13635b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13646217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1367bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 13685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13695b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1370bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 13715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 13725b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 13735b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13745b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13756217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13765b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1378bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 13795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13805b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1381bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1382bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 138340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) FormatArgAttr(Idx.getZExtValue())); 13845b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 13855b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 13862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 13872b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 13882b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 13892b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 13902b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 13913c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 13922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 13932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 13942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 13952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 13962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 13972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 13982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 13992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 14002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 14012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 14022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 14032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 14042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 14052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 14062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 14072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 14082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 14092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 14102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 14112b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 14122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1413bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1414bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 14153c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 14163c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 14182b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 14192b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1420521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1421521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1422521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1423521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1424521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1425521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1426521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1427521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1428521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1429b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1430b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1431b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1432b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1433b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1434b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1435b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1436b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1437b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1438b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1439b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1440b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1441b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1442b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1443521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1444521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1445521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1446521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1447521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1448521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Expr *priorityExpr = static_cast<Expr *>(Attr.getArg(0)); 1449b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1450521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1451521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1452521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1453521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1454521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1455521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1456521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1457521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 14589f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1459521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1460521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1461521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1462521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1463521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1464521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1465521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian d->addAttr(::new (S.Context) InitPriorityAttr(prioritynum)); 1466521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1467521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1468bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1469bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1470803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1472545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1473fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 14743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 14756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1478545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 14793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 14806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1483620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1484fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14855dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 14866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 14906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 14916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 149201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 14936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 14952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 14962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 14972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 14982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 14992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 15003c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 15013c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 15023c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 15033c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 15042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1505fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 150601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 15076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1511545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1512803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1513ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1514ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1515fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15163c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15204fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // FIXME: We should handle the implicit 'this' parameter in a more generic 15214fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // way that can be used for other arguments. 15224fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson bool HasImplicitThisParam = false; 15234fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(d)) { 15244fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (MD->isInstance()) { 15254fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson HasImplicitThisParam = true; 15264fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson NumArgs++; 15274fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15284fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1531fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 15376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1538bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15394a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 15404a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 15414a2614e94672c47395abcde60518776fbebec589Sebastian Redl S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 15424a2614e94672c47395abcde60518776fbebec589Sebastian Redl << "a string type" << IdxExpr->getSourceRange(); 15434a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 15444a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15454a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 15464a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 15493568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 15506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15512b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1552085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1553fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1554fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1555085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1556085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 15572b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1558390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1559390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1560803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1561390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1562fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1563fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 15646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1565bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 15676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1568390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1569fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1570fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 15716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1575545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1576803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1577ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1578ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1579fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 15816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 15856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 15863568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 15876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 15886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1589803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 15906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15943c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 15953c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 15962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 15976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1598fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1599fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 16006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 16036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1604fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 16053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 16066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16093d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) FormatAttr(S.Context, Format, Idx.getZExtValue(), 16102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 16116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16130b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 16140b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 16156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1616545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 16173c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 16186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 16220c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1623bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 16240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 16250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 16260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 16270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 16280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 16290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1630fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16315dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 16326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1636bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 16370c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 16380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 16400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 164117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 164217945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 16430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 16440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 16450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1647bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 16490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 165090cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1651bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 165290cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 165390cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 16540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1656bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 16580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 16590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 16600c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 16610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 16620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 16630c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 16640c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1665bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 16660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1667bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 16680c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 16690c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 16700c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1671bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 16720c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 16730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1674bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1675bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1676bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 16776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 167840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr()); 16796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16810b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1683545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 16843c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1687797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1688797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1689bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 16916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 16926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1693797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 16946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16963d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) AnnotateAttr(S.Context, SE->getString())); 16976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16994ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 17006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1701545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 17023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 17036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1705bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1706bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1707bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1708bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 17096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1710545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 17116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 17127549c5589ac0d2087e55f2bdd4854adef23f29fdDaniel Dunbar // (For now we just use 128 bits which is the maximum on X86). 17134ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth D->addAttr(::new (S.Context) AlignedAttr(128)); 17144ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 17154ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 17164ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 17174ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth S.AddAlignedAttr(Attr.getLoc(), D, static_cast<Expr *>(Attr.getArg(0))); 17184ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 17194ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 17204ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 17214ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 17224ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 17234ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth D->addAttr(::new (Context) AlignedAttr(E)); 17246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1726bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 172749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 17284ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 17294ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 17304ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 173149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 173249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1733396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 17344ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 17354ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1736396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1737396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1738396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 17394ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth D->addAttr(::new (Context) AlignedAttr(Alignment.getZExtValue() * 8)); 17406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1741fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1742bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1743bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1744fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1745bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1746bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1747bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 17480b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1749fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1750fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1751fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1752fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1753fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 17543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1755fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1756fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1757fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1758fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1759fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 17600b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1761fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1762fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1763210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 176401eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1765fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1766fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1767210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1768210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1769fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1770fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1771fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 177273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1773210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1774fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 177573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 177673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 177773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 177873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 177973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 178073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 178173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 178273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 178373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 178473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 178573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 178673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 178773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 178873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 178973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 179073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1791fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1792fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1793fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1794fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1795210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 17960b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1797210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 17980b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1799fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1800fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1801210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 18020b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1803fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1804fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1805fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1806fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1807fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1808fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1809fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1810fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1811fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1812fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1813fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1814fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1815fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 181673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1817183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 181873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 181973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 18202ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 182173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 182273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 182373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 182473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 182573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 182673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 182773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 182873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 182973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1830390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1831390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1832390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1833390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1834f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1835f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1836fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1837fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1838fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 18393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1840fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1841fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 18423c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1843fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1844fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 184573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 184673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 184773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 184873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1849fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18500b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1851fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18520b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1853fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1854fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 185573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 185673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 185773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 185873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1859fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18600b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1861fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18620b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1863fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1864fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1865fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18660b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1867fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 18680b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1869fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18700b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1871fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1872fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1873fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18740b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1875fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 1876aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1877aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 1878aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1879aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 1880fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1881aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1882aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 1883aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1884aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 1885fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 188673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 188773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 188873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1889f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1890f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1891f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1892f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1893f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1894f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 1895f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 1896f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 1897f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 189873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1899fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1900fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 190173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 190273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1903fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1904fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1905fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1906ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1907ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 1908a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 1909ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 1910fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1911fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 19120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 19131feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1914d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1915d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1916d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1917d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1918d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1919e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 19205bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1921d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19225dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1923d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1924d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1925bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19261feade8e520be483293dbf55eb57a51720899589Mike Stump d->addAttr(::new (S.Context) NoDebugAttr()); 1927d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1928d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 19291feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 19305bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 19315bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 19325bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19335bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19345bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1935bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1936c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 19375bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19385dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 19395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19405bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1941bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19421feade8e520be483293dbf55eb57a51720899589Mike Stump d->addAttr(::new (S.Context) NoInlineAttr()); 19435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 19445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 19457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 19467255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 19477255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 19487255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 19497255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19507255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19517255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19527255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 19537255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 19547255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19557255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner << Attr.getName() << 0 /*function*/; 19567255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19577255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19587255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 19597255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner d->addAttr(::new (S.Context) NoInstrumentFunctionAttr()); 19607255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 19617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1962cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 196326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 196426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 196526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 196626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 196726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1968bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1969c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1970c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 197126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19725dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 197326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 197426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1975bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19760130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 1977cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1978c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1979c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1980bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 198140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) GNUInlineAttr()); 198226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 198326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1984e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnarastatic void HandleCallConvAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1985e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Diagnostic is emitted elsewhere: here we store the (valid) Attr 1986e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 1987e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 1988e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 1989e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara switch (Attr.getKind()) { 1990e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 1991e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) FastCallAttr()); 1992e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1993e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 1994e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) StdCallAttr()); 1995e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1996f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 1997f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor d->addAttr(::new (S.Context) ThisCallAttr()); 1998e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 1999e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) CDeclAttr()); 2000e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2001e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2002e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2003e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2004e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2005e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2006e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2007ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2008ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 2009ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 201055d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2011ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2012ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 201355d3aaf9a537888734762170823daf750ea9036dEli Friedman 2014ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 2015ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20165dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2017ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2018ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 201955d3aaf9a537888734762170823daf750ea9036dEli Friedman 202055d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 202155d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2022ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2023ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 202455d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 202555d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 202655d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 202755d3aaf9a537888734762170823daf750ea9036dEli Friedman } 202855d3aaf9a537888734762170823daf750ea9036dEli Friedman 2029264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 2030264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 203155d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 203255d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 203355d3aaf9a537888734762170823daf750ea9036dEli Friedman } 203455d3aaf9a537888734762170823daf750ea9036dEli Friedman 2035348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 2036264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2037264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 203855d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 203955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 204055d3aaf9a537888734762170823daf750ea9036dEli Friedman 204140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) RegparmAttr(NumParams.getZExtValue())); 2042ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2043ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 2044bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleFinalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2045bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // check the attribute arguments. 2046bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (Attr.getNumArgs() != 0) { 2047bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2048bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2049bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 2050bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2051bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isa<CXXRecordDecl>(d) 2052bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt && (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual())) { 2053bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 2054bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 2055bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 2056bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt << Attr.getName() << 7 /*virtual method or class*/; 2057bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2058bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 20597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 20617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<FinalAttr>()) { 20637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "final"; 20647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 2066bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2067bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt d->addAttr(::new (S.Context) FinalAttr()); 2068bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 2069bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 20700744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 20717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 20727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 20737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 20817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 20827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 20837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 20847725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 20857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 20897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 20907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) BaseCheckAttr()); 20947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 20957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 21037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 21047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 21087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 21147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 21157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) HidingAttr()); 21197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 21237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 21287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 21297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 21337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21357725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21367725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21377725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21387725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 21397725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 21407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) OverrideAttr()); 21447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 2147b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2148b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2149b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2150b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 2151b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2152b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 21535dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 2154bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21555dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 21565dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 21575dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 21585dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 21595dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 216021531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 216121531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 216221531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 2163b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2164b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2165bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 2167183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 216821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 216921531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 217021531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 2171bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 21725dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2174b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 2175b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2176b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2177b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 217831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 217931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr()); 218031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 218131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 218231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr()); 218331c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2184b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 218540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CFReturnsRetainedAttr()); 2186b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2187b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 218840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NSReturnsRetainedAttr()); 2189b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2190b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2191b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2192b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2193f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2194f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 2195f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis Attr.getKind() == AttributeList::AT_dllexport; 2196f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2197f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2198b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 21990744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 22000744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 22010744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 2202a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 2203803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 2204bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 2205bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 2206bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void ProcessDeclAttribute(Scope *scope, Decl *D, 2207bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const AttributeList &Attr, Sema &S) { 2208e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (Attr.isInvalid()) 2209e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2210e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2211f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 2212f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis // FIXME: Try to deal with other __declspec attributes! 2213290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 2214803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 221563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2216857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2217857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2218857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2219803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2220ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 22216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 2222bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2223bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2224803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 22267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2227bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2228af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2229b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2230bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 22317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 22327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 2233bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 22347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 22357725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 22367725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 22377725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 22383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 22399cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 22403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 22417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_final: HandleFinalAttr (D, Attr, S); break; 22427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 22437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 22447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 22457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 22467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 22477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 22487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2249dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2250dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2251dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2252dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 22537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 22547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 22557725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 225635cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2257b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2258b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 225931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 226031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2261b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2262b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2263b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2264b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 22656f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 22666f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 22676f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2268521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2269521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2270521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 22717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 22727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 22737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 22747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 22757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 22767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2277026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2278026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 22797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 228011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 22817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2282803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2283803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2284803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22850db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 22860db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 22870db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2288f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 22897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 22907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 22917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 22927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 22937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 22947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 22957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 22967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 22977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2298bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 229905f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 230005f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 23017255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 23027255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 23037255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 230404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 230504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 230604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2307f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2308e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 230904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2310803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 231182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 231282d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 231382d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 23147d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 23157d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2316803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2317803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2318803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2319803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2320803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2321803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 23229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 232311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 232411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola ProcessDeclAttribute(S, D, *l, *this); 232511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 232611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 232711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 232811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 232911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 233011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 233111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2332dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 233311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2334803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2335803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2336803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2337e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2338e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 23391eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 23407b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2341e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2342e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2343e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2344e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2345a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2346b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2347b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2348b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 2349b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2350e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2351e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2352e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2353a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 235416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 235516573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2356b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2357b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2358b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 2359b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2360e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2361e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2362e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2363e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2364e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2365e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 23667b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2367c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2368c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2369c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2370c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2371c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 23723d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek NewD->addAttr(::new (Context) AliasAttr(Context, NDId->getName())); 2373c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NewD->addAttr(::new (Context) WeakAttr()); 2374c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2375c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2376c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2377c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2378c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2379c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2380c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2381c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2382c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner ND->addAttr(::new (Context) WeakAttr()); 2383e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2384e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2385e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 23860744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 23870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 23880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 23899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 2390e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn // Handle #pragma weak 2391e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2392e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (ND->hasLinkage()) { 2393e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakInfo W = WeakUndeclaredIdentifiers.lookup(ND->getIdentifier()); 2394e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (W != WeakInfo()) { 23957b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn // Identifier referenced by #pragma weak before it was declared 23967b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn DeclApplyPragmaWeak(S, ND, W); 2397e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakUndeclaredIdentifiers[ND->getIdentifier()] = W; 2398e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2399e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2400e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2401e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 24020744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 24030744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 24049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2405bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24060744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 24070744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 24080744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 24090744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 24100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 24110744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 24129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2413bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24140744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 24150744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 24169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 24170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 241854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 241954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 242054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 242154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 242254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 242354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 242454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallAction::ParsingDeclStackState Sema::PushParsingDeclaration() { 242554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 24262f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 242754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 242854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 242954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, DeclPtrTy Ctx) { 243054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 243154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 243254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 24332f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 243454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 243554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 243654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 24372f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 243854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 243954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 244058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 244158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24422f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 24432f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 24442f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *D = Ctx ? Ctx.getAs<Decl>() : 0; 24452f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 24462f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 24472f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 24482f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 24492f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 24502f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 24512f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 245258e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 24532f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 24542f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 24552f514480c448708ec382a684cf5e035d3a827ec8John McCall 24562f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 24572f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 24582f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 24592f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 24602f514480c448708ec382a684cf5e035d3a827ec8John McCall 24612f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 24622f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 24632f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 246454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 246554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 246654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 246754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 246858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 246958e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 247058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 247158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24722f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 24732f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24742f514480c448708ec382a684cf5e035d3a827ec8John McCall 24752f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 24762f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 24772f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 24782f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 24792f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 24802f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 24812f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24822f514480c448708ec382a684cf5e035d3a827ec8John McCall 24832f514480c448708ec382a684cf5e035d3a827ec8John McCallvoid Sema::HandleDelayedDeprecationCheck(Sema::DelayedDiagnostic &DD, 24842f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 24852f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 24862f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 24872f514480c448708ec382a684cf5e035d3a827ec8John McCall 24882f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 24892f514480c448708ec382a684cf5e035d3a827ec8John McCall Diag(DD.Loc, diag::warn_deprecated) 24902f514480c448708ec382a684cf5e035d3a827ec8John McCall << DD.DeprecationData.Decl->getDeclName(); 249154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 249254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 249354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::EmitDeprecationWarning(NamedDecl *D, SourceLocation Loc) { 249454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 249554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 24962f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D)); 249754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 249854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 249954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 250054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 250154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 250254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 250354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 250454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 250554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 2506