SemaDeclAttr.cpp revision a8fb24fa3151567056f6125999cea69e39604f35
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 } 277a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 278a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 279a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 280a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian Sema::TypeTy *TypeRep = S.getTypeName(*II, Attr.getLoc(), 281a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 282a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 283a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 284a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 285a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 286a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian QualType QT(QualType::getFromOpaquePtr(TypeRep)); 287a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 288a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 289a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 290a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 291a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 292a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 293a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 294a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 295a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 296a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian d->addAttr(::new (S.Context) IBOutletCollectionAttr(QT)); 297857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 298857e918a8a40deb128840308a318bf623d68295fTed Kremenek 299eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 300bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 301bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 302d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 303fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3045dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 305eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 306eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 307bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 308d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 309eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 310eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 311eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 312bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 313eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 314eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 315bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 316bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 317eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 318f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 319eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 320ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 321ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 322fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 323fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 325eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 326bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 328bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 329eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 330fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 33130bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 332eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 333eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 334bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 335465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 338bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump QualType T = getFunctionOrMethodArgType(d, x); 339dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 340eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 341c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 342fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3437fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 344eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 345bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 346eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 347eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 348bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 349bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 350bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3517fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 35246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 35346bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 354dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 355d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 35646bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 357bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3587fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3597fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3607fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3617fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 362eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3637fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3647fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3657fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 366dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 3675961611172f1c210fbbaa55b3c692e13b1fc7be4Ted Kremenek d->addAttr(::new (S.Context) NonNullAttr(S.Context, start, size)); 368eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 369eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 370dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 371dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 372dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 373dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 374dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 375dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 376dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 3772a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 3782a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 379dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 380dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 381dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 382dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 383dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 384dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 385dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 3862a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose attr::Kind K; 3872a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 3882a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 3892a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose K = attr::OwnershipTakes; 390dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 391dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 392dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 393dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 3942a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 3952a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 3962a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose K = attr::OwnershipHolds; 397dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 398dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 399dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 400dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4012a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4022a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 4032a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose K = attr::OwnershipReturns; 404dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 405dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 406dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 407dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 408dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4092a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4102a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4112a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4122a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 413dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 414dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 415dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 416dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) << AL.getName() 417dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << 0 /*function*/; 418dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 419dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 420dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 421dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned NumArgs = getFunctionOrMethodNumArgs(d); 422dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 423dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 424dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 425dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 426dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 427dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 428dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 429dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 430dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4312a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 4322a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 433dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 434dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(*I); 435dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 436dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 437dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 438dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 439dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 440dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 441dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 442dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 443dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 444dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 445dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 447dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 448dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 449dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 450dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 4522a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipTakes: 4532a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipHolds: { 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 455dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 456dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 457dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 458dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 4592a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose << ((K==attr::OwnershipTakes)?"ownership_takes":"ownership_holds") 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 463dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 464dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4662a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipReturns: { 467dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 468dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 469dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Expr *IdxExpr = static_cast<Expr *>(AL.getArg(0)); 470dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 475dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 476dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 477dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4812a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4822a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 483dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 484dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 4862a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose if (K != attr::OwnershipReturns && d->hasAttrs()) { 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek for (const Attr *attr = d->getAttrs(); attr; attr = attr->getNext()) { 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (const OwnershipAttr* Att = dyn_cast<OwnershipAttr>(attr)) { 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Two ownership attributes of the same kind can't conflict, 490dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // except returns attributes. 4912a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose if (Att->getKind() != K) { 4922a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (const unsigned *I = Att->begin(), *E = Att->end(); I!=E; ++I) { 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x == *I) { 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 495dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << "ownership_*"; 496dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 498dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 502dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 503dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 504dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 505dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 506dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 5092a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipTakes: { 510dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (OwnershipArgs.empty()) { 511dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 512dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek d->addAttr(::new (S.Context) OwnershipTakesAttr(S.Context, start, size, 515dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module)); 516dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 517dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5182a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipHolds: { 519dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (OwnershipArgs.empty()) { 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 523dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek d->addAttr(::new (S.Context) OwnershipHoldsAttr(S.Context, start, size, 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module)); 525dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5272a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case attr::OwnershipReturns: { 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek d->addAttr(::new (S.Context) OwnershipReturnsAttr(S.Context, start, size, 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module)); 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 532dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek default: 5332a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 535dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 536dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 53711e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic bool isStaticVarOrStaticFunciton(Decl *D) { 53811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 53911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return VD->getStorageClass() == VarDecl::Static; 54011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 54111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return FD->getStorageClass() == FunctionDecl::Static; 54211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 54311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 54411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 54511e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 54611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 54711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 54811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 54911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 55011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 55111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 55211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 55311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 55411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 55511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 55611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 55711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 55811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 55911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 56011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 56111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 56211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (const DeclContext *Ctx = d->getDeclContext()) { 56311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Ctx = Ctx->getLookupContext(); 56411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isa<TranslationUnitDecl>(Ctx) && !isa<NamespaceDecl>(Ctx) ) { 56511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 566dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(d)->getNameAsString(); 56711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 56811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 56911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 57011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 57111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 57211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 57411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 57511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 57711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 57811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 57911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 58011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 58111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 58211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 58311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 58411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 58511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 58611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 58711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 58811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 58911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isStaticVarOrStaticFunciton(d)) { 59011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 59111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 59211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 59311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 59411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 59611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 59711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 59811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 60011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 60111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 60211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 60311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 60511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 60611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 60711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 60811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 60911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 61011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 61111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola d->addAttr(::new (S.Context) AliasAttr(S.Context, Str->getString())); 61211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 61311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 61411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola d->addAttr(::new (S.Context) WeakRefAttr()); 61511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 61611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 617803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 619545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 623bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 624545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 6256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 627bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 629fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6303c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 6316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 633bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 635bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6363d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) AliasAttr(S.Context, Str->getString())); 6376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 639bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 640af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 641af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 642af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 6433c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 644af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 645af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 6465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 647c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 6485bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 6495dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 6505bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 6515bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 652bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 65340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlwaysInlineAttr()); 654af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 655af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 65676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 65776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn // check the attribute arguments. 65876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 65976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 66076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 66176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 6621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6632cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 6641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 6652cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 6662cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek d->addAttr(::new (S.Context) MallocAttr()); 6672cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 6682cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 669fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 670fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 6712cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 67276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 67376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 674b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic bool HandleCommonNoReturnAttr(Decl *d, const AttributeList &Attr, 675e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Sema &S) { 6766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 677545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 678e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 679b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return false; 6806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 681d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 68219c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 68319c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 6843ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 6853ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 686e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 687e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 688e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara : diag::warn_attribute_wrong_decl_type) 689e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara << Attr.getName() << 0 /*function*/; 69019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump return false; 69119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 6926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 693bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 694b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return true; 695b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 696b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 697b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 698e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara /* Diagnostics (if any) was emitted by Sema::ProcessFnAttr(). */ 699e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 700e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) NoReturnAttr()); 701b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 702b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 703b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 704b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek Sema &S) { 705e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (HandleCommonNoReturnAttr(d, Attr, S)) 70640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AnalyzerNoReturnAttr()); 7076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 70935cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 71035cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 71135cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 71235cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 71335cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 71435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 71535cc9627340b15232139b3c43fcde5973e7fad30John Thompson According to the PPU ABI specifications, a class with a single member of vector type is returned in 71635cc9627340b15232139b3c43fcde5973e7fad30John Thompson memory when used as the return value of a function. This results in inefficient code when implementing 71735cc9627340b15232139b3c43fcde5973e7fad30John Thompson vector classes. To return the value in a single vector register, add the vecreturn attribute to the class 71835cc9627340b15232139b3c43fcde5973e7fad30John Thompson definition. This attribute is also applicable to struct types. 71935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72035cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 72135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72235cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 72335cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 72435cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 72535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 72635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 72735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 72835cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 72935cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 73035cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 73135cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 73235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 73335cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 73435cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (!isa<CXXRecordDecl>(d)) { 73535cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 73635cc9627340b15232139b3c43fcde5973e7fad30John Thompson << Attr.getName() << 9 /*class*/; 73735cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 73835cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 73935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 74035cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 74135cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 74235cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 74335cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 74435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 74535cc9627340b15232139b3c43fcde5973e7fad30John Thompson d->addAttr(::new (S.Context) VecReturnAttr()); 74635cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 74735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 748bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 749bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 750bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 75104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 752bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 753bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 754bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 755bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 756bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 75773798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 75873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 75973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 7603c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 76173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 76273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 763bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 764aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 765aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall !isa<TypeDecl>(d)) { 766fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7675dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 76873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 76973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 770bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 77140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnusedAttr()); 77273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 77373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 774b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 775b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 776b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 777b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 778b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 779b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 780bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 781b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 782186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 783b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 784b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 785b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 786b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 787b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7885dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 789b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 790b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 791bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 79240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UsedAttr()); 793b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 794b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 7953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 7963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 7973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 798fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 799fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 801bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 807ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 808ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 809fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 8113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 815bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 816c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 817fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8185dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 82240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstructorAttr(priority)); 8233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 8273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 828fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 829fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 8303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 831bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 8333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 8343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 8353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 8363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 837ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 838ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 839fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 8403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 8413068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 8443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 845bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8466782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 847fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8485dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 8493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 8503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 8513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 85240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DestructorAttr(priority)); 8533068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 8543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 855803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 857545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8583c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 861bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 86240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DeprecatedAttr()); 8636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 865bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 866bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 867bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 868bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 869bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 870bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 871bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 87240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnavailableAttr()); 873bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 874bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 875803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 877545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 8783c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 8796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 881bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 882545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 8836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 8846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 885bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 887fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 8883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 8896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 891bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 892c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 8936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 894bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 895c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 8966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 897c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 8986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 899c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 9006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 901c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 9026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 9036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 90408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 9056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 907bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 908aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman d->addAttr(::new (S.Context) VisibilityAttr(type, false)); 9096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 9120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 9130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 9140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9150db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 917bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9180db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 9190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 9200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 9210db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 9220db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 923bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 92440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr()); 9250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 9260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 9270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 928fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 9292b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 930fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 931fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 9320db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 933fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 934fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 9356217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 936fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 937fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 938fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 939fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 94040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr()); 941fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 942fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 943bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 944f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 945f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 9462b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 947f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 948f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 949f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 950f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 951f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 952f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 953f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 954f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 95540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr()); 956f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 957f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 9589eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 959bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 960fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 9613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 9629eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9639eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 964bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9659eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 9663c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9679eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9689eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 969bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 97192e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 9729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 9739eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 974fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 9753c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 9769eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 9779eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 978bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 97940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) BlocksAttr(type)); 9809eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 9819eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 982770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 983770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 984770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 985fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 986fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 987770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 988bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 989bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 990770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 991770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 992770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 993770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 994ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 995ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 996fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9973c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 998770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 999770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1000770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1001bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1002770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1003fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1004fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1005770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1006770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1007770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1008770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1009770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1010770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 1011770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 1012770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1013ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1014ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1015fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10163c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1017770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1018770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1019770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1020bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1021770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1022770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1023770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1024fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1025fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1026770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1027770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1028770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1029770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1030770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1031183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1032897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1033bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1034897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1035897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1036897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1037897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1038bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1039897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10403bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1041770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1042bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1043770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1044770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 10453bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1046770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 10472f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 10482f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1049bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1050bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 10512f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 10522f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 10532f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1054daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1055bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1056183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 10572f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 10583bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 10593bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 10602f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10612f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1062ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 10632f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1064ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 10652f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 10662f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1067770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1068fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1069ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 1070770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1071770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 107240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) SentinelAttr(sentinel, nullPos)); 1073770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1074770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1075026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1076026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1077026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1078026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1079026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1080026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1081026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1082f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1083026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 10845dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1085026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1086026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1087bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1088f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1089f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1090f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1091f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1092f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1093f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1094f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1095f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1096f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1097f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1098f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1099f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1100d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes D->addAttr(::new (S.Context) WarnUnusedResultAttr()); 1101026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1102026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1103026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1105545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 11063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11096e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1110f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 111111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (isStaticVarOrStaticFunciton(D)) { 1112f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 1113f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 1114f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1115f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1116f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 11176e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 11186e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 11196e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11205dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 11216e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11226e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1123bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 112440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakAttr()); 11256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 11286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 11296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 11306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1132bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 11336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11346e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 11356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 11366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 11376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 11386e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 113906a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1140d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1141d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 11421c90f4dc686ab872013544664c797604a309c563Mike Stump return; 11435f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1144c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 11453be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1146c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1147c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11483be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian << Attr.getName() << 2 /*variable and function*/; 11493be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 11506e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11516e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11526e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 11536e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1154bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 11556e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 11566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 11576e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 11586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 11596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 116040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr()); 11616e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 11626e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 11636f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 11646f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 11656f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 11666f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 11672b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11686f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11696f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11706f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 11716f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 11726f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 11736f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 11746f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1175ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1176ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 11776f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 11786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 11796f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 11806f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 11816f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 11826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 118340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(WGSize[0], WGSize[1], 11846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 11856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 11866f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1187026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 118817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 118917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 119017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 119117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 119217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 119317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 119417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 119517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 1196797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1197797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 119817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1199797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 120017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 120117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 12021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1203797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1204bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1205a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1206a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1207a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1208797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1209797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 12101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1211a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1212a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1213a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1214a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1215a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1216a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 12173d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek D->addAttr(::new (S.Context) SectionAttr(S.Context, SE->getString())); 121817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 121917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 12206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1221803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1223545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12243c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1227bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 122840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoThrowAttr()); 12296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1231232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1232232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1233232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12343c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1235232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1236232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1237bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 123840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstAttr()); 1239232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1240232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1241232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1242232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1243232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 12443c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1245232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1246232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1247bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 124840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) PureAttr()); 1249232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1250232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1251f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1252bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1253f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1254f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1255f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1256bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1257f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1258f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1259f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1260f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1261bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1262f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1263bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1264f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1265f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1266f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1267f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1268bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1269f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1270c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1271c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: The lookup source location should be in the attribute, not the 1272c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // start of the attribute. 1273f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1274c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor = S.LookupSingleName(S.TUScope, Attr.getParameterName(), Attr.getLoc(), 1275f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall Sema::LookupOrdinaryName); 1276f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 127789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1278f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1279f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1280f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1281bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1282f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1283f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 128489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1285f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1286f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1287f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1288f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1289f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 129089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1291f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1292f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1293f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1294bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 129589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 129689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 129789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 129889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1299d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1300bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 130189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 130289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 130389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 130489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1305bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 130640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CleanupAttr(FD)); 1307f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1308f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1309bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1310bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1311bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 13135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 13165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 13175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 13195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13205b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1321bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // FIXME: in C++ the implicit 'this' function parameter also counts. this is 1322bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // needed in order to be compatible with GCC the index must start with 1. 13235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned NumArgs = getFunctionOrMethodNumArgs(d); 13245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 13255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 13265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 13275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1328ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1329ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 13305b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13315b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1334bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 13365b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 13375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 13385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 13395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1340bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 13445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1345bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 13475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 13485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13506217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1353bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 13545b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1356bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 13575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 13585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 13595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 13605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 13616217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 13625b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 13635b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1364bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 13655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 13665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1367bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1368bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 136940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) FormatArgAttr(Idx.getZExtValue())); 13705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 13715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 13722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 13732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 13742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 13752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 13762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 13773c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 13782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 13792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 13802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 13812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 13822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 13832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 13842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 13852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 13862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 13872b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 13882b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 13892b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 13902b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 13912b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 13922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 13932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 13942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 13952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 13962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 13972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 13982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1399bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1400bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 14013c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 14023c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 14042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 14052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1406521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1407521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1408521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1409521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1410521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1411521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1412521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1413521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1414521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1415b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1416b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1417b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1418b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1419b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1420b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1421b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1422b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1423b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1424b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1425b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1426b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1427b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1428b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1429521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1430521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1431521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1432521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1433521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1434521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Expr *priorityExpr = static_cast<Expr *>(Attr.getArg(0)); 1435b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1436521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1437521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1438521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1439521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1440521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1441521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1442521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1443521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 14449f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1445521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1446521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1447521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1448521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1449521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1450521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1451521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian d->addAttr(::new (S.Context) InitPriorityAttr(prioritynum)); 1452521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1453521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1454bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1455bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1456803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1458545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1459fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 14603c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 14616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1464545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 14653c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 14666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1469620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1470fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14715dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 14726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 14766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 14776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 147801eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 14796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 14812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 14822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 14832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 14842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 14852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 14863c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14873c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 14883c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 14893c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 14902b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1491fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 149201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 14936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1497545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1498803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1499ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1500ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1501fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15064fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // FIXME: We should handle the implicit 'this' parameter in a more generic 15074fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // way that can be used for other arguments. 15084fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson bool HasImplicitThisParam = false; 15094fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(d)) { 15104fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (MD->isInstance()) { 15114fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson HasImplicitThisParam = true; 15124fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson NumArgs++; 15134fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15144fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 15151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1517fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 15196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 15236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1524bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15254a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 15264a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 15274a2614e94672c47395abcde60518776fbebec589Sebastian Redl S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 15284a2614e94672c47395abcde60518776fbebec589Sebastian Redl << "a string type" << IdxExpr->getSourceRange(); 15294a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 15304a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15314a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 15324a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 15331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 15353568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 15366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15372b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1538085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1539fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1540fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1541085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1542085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 15432b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1544390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1545390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1546803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1547390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1548fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1549fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 15506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1551bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 15536217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1554390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1555fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1556fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 15576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1561545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1562803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1563ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1564ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1565fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15663c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 15676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 15716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 15723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 15736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 15746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1575803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 15766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 15813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 15822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 15836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1584fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1585fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 15866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 15896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1590fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15913c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 15926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 15946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15953d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) FormatAttr(S.Context, Format, Idx.getZExtValue(), 15962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 15976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15990b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 16000b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 16016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1602545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 16033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 16046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 16080c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1609bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 16100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 16110c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 16120c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 16130c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 16140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 16150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1616fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16175dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 16186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1622bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 16230c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 16240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 16260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 162717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 162817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 16290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 16300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 16310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1633bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 16350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 163690cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1637bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 163890cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 163990cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 16400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 16410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1642bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 16430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 16440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 16450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 16460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 16470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 16480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 16490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 16500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1651bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 16520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1653bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 16540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 16550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 16560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1657bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 16580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 16590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1660bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1661bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1662bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 16636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 166440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr()); 16656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16670b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1669545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 16703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1673797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1674797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1675bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 16776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 16786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1679797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 16806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16823d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) AnnotateAttr(S.Context, SE->getString())); 16836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16854ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 16866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1687545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 16883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1691bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1692bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1693bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1694bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 16956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1696545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 16976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 16987549c5589ac0d2087e55f2bdd4854adef23f29fdDaniel Dunbar // (For now we just use 128 bits which is the maximum on X86). 16994ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth D->addAttr(::new (S.Context) AlignedAttr(128)); 17004ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 17014ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 17024ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 17034ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth S.AddAlignedAttr(Attr.getLoc(), D, static_cast<Expr *>(Attr.getArg(0))); 17044ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 17054ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 17064ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 17074ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 17084ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 17094ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth D->addAttr(::new (Context) AlignedAttr(E)); 17106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1712bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 171349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 17144ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 17154ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 17164ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 171749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 171849e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1719396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 17204ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 17214ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1722396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1723396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1724396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 17254ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth D->addAttr(::new (Context) AlignedAttr(Alignment.getZExtValue() * 8)); 17266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1727fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1728bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1729bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1730fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1731bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1732bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1733bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 17340b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1735fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1736fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1737fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1738fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1739fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 17403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1741fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1742fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1743fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1744fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1745fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 17460b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1747fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1748fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1749210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 175001eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1751fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1752fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1753210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1754210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1755fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1756fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1757fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 175873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1759210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1760fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 176173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 176273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 176373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 176473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 176573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 176673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 176773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 176873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 176973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 177073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 177173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 177273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 177373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 177473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 177573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 177673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1777fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1778fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1779fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1780fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1781210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 17820b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1783210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 17840b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1785fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1786fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1787210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 17880b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1789fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1790fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1791fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1792fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1793fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1794fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1795fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1796fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1797fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1798fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1799fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1800fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1801fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 180273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1803183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 180473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 180573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 18062ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 180773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 180873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 180973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 181073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 181173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 181273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 181373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 181473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 181573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1816390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1817390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1818390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1819390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1820f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1821f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1822fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1823fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1824fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 18253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1826fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1827fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 18283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1829fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1830fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 183173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 183273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 183373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 183473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1835fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18360b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1837fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18380b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1839fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1840fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 184173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 184273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 184373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 184473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1845fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 18460b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1847fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18480b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1849fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1850fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1851fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18520b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1853fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 18540b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1855fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 18560b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1857fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1858fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1859fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 18600b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1861fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 1862aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1863aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 1864aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1865aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 1866fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1867aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1868aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 1869aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1870aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 1871fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 187273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 187373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 187473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1875f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1876f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1877f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1878f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1879f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1880f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 1881f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 1882f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 1883f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 188473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1885fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1886fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 188773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 188873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1889fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1890fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1891fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1892ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1893ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 1894a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 1895ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 1896fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1897fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 18980744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 18991feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1900d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1901d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1902d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1903d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1904d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1905e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 19065bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1907d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19085dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1909d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1910d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1911bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19121feade8e520be483293dbf55eb57a51720899589Mike Stump d->addAttr(::new (S.Context) NoDebugAttr()); 1913d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1914d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 19151feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 19165bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 19175bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 19185bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19195bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19205bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1921bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1922c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 19235bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19245dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 19255bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 19265bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1927bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19281feade8e520be483293dbf55eb57a51720899589Mike Stump d->addAttr(::new (S.Context) NoInlineAttr()); 19295bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 19305bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 19317255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 19327255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 19337255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 19347255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 19357255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19367255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19377255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19387255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 19397255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 19407255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19417255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner << Attr.getName() << 0 /*function*/; 19427255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 19437255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 19447255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 19457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner d->addAttr(::new (S.Context) NoInstrumentFunctionAttr()); 19467255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 19477255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1948cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 194926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 195026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 195126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 195226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 195326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1954bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1955c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1956c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 195726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 19585dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 195926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 196026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1961bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19620130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 1963cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1964c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1965c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1966bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 196740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) GNUInlineAttr()); 196826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 196926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1970e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnarastatic void HandleCallConvAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1971e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Diagnostic is emitted elsewhere: here we store the (valid) Attr 1972e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 1973e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara assert(Attr.isInvalid() == false); 1974e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 1975e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara switch (Attr.getKind()) { 1976e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 1977e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) FastCallAttr()); 1978e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1979e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 1980e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) StdCallAttr()); 1981e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1982f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 1983f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor d->addAttr(::new (S.Context) ThisCallAttr()); 1984e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 1985e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara d->addAttr(::new (S.Context) CDeclAttr()); 1986e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1987e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 1988e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 1989e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 1990e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 1991e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 1992e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 1993ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1994ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 1995ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 199655d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1997ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1998ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 199955d3aaf9a537888734762170823daf750ea9036dEli Friedman 2000ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 2001ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 20025dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2003ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2004ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 200555d3aaf9a537888734762170823daf750ea9036dEli Friedman 200655d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 200755d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2008ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2009ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 201055d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 201155d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 201255d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 201355d3aaf9a537888734762170823daf750ea9036dEli Friedman } 201455d3aaf9a537888734762170823daf750ea9036dEli Friedman 2015264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 2016264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 201755d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 201855d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 201955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 202055d3aaf9a537888734762170823daf750ea9036dEli Friedman 2021348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 2022264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2023264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 202455d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 202555d3aaf9a537888734762170823daf750ea9036dEli Friedman } 202655d3aaf9a537888734762170823daf750ea9036dEli Friedman 202740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) RegparmAttr(NumParams.getZExtValue())); 2028ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2029ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 2030bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleFinalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2031bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // check the attribute arguments. 2032bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (Attr.getNumArgs() != 0) { 2033bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2034bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2035bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 2036bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2037bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isa<CXXRecordDecl>(d) 2038bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt && (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual())) { 2039bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 2040bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 2041bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 2042bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt << Attr.getName() << 7 /*virtual method or class*/; 2043bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 2044bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 20457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 20477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<FinalAttr>()) { 20497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "final"; 20507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 2052bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2053bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt d->addAttr(::new (S.Context) FinalAttr()); 2054bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 2055bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 20560744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 20577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 20587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 20597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 20677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 20687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 20697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 20707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 20717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 20757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 20767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) BaseCheckAttr()); 20807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 20817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 20837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 20847725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 20897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 20907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 20917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 20927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 20937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 20947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 20957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 20967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 20987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 20997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 21007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 21017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) HidingAttr()); 21057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 21097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 21147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 21157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 21167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 21177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 21187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 21197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 21237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 21257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 21267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 21277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 21287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) OverrideAttr()); 21307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 21317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 21327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 2133b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2134b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2135b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2136b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 2137b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2138b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 21395dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 2140bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21415dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 21425dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 21435dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 21445dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 21455dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 214621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 214721531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 214821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 2149b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2150b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2151bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21526217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 2153183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 215421531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 215521531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 215621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 2157bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 21585dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2159bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2160b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 2161b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2162b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2163b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 216431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 216531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr()); 216631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 216731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 216831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr()); 216931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2170b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 217140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CFReturnsRetainedAttr()); 2172b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2173b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 217440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NSReturnsRetainedAttr()); 2175b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2176b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2177b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2178b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2179f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2180f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 2181f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis Attr.getKind() == AttributeList::AT_dllexport; 2182f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2183f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2184b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 21850744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 21860744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 21870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 2188a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 2189803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 2190bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 2191bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 2192bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void ProcessDeclAttribute(Scope *scope, Decl *D, 2193bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const AttributeList &Attr, Sema &S) { 2194e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (Attr.isInvalid()) 2195e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2196e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2197f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 2198f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis // FIXME: Try to deal with other __declspec attributes! 2199290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 2200803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 220163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2202857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2203857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2204857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2205803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2206ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 22076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 2208bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2209bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2210803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 22127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2213bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2214af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2215b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2216bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 22177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 22187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 2219bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 22207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 22217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 22227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 22237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 22243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 22259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 22263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 22277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_final: HandleFinalAttr (D, Attr, S); break; 22287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 22297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 22307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 22317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 22327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 22337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 22347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2235dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2236dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2237dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2238dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 22397725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 22407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 22417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 224235cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2243b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2244b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 224531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 224631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2247b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2248b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2249b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2250b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 22516f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 22526f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 22536f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2254521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2255521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2256521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 22577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 22587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 22597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 22607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 22617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 22627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2263026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2264026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 22657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 226611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 22677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2268803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2269803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2270803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 22710db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 22720db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 22730db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2274f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 22757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 22767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 22777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 22787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 22797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 22807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 22817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 22827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 22837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2284bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 228505f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 228605f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 22877255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 22887255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 22897255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 229004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 229104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 229204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2293f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2294e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 229504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2296803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 229782d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 229882d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 229982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 23007d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 23017d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2302803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2303803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2304803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2305803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2306803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2307803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 23089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 230911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 231011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola ProcessDeclAttribute(S, D, *l, *this); 231111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 231211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 231311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 231411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 231511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 231611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 231711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2318dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 231911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2320803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2321803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2322803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2323e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2324e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 23251eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 23267b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2327e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2328e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2329e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2330e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2331a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2332b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2333b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2334b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 2335b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2336e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2337e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2338e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2339a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 234016573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 234116573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2342b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2343b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2344b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 2345b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2346e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2347e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2348e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2349e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2350e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2351e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 23527b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2353c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2354c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2355c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2356c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2357c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 23583d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek NewD->addAttr(::new (Context) AliasAttr(Context, NDId->getName())); 2359c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NewD->addAttr(::new (Context) WeakAttr()); 2360c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2361c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2362c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2363c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2364c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2365c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2366c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2367c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2368c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner ND->addAttr(::new (Context) WeakAttr()); 2369e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2370e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2371e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 23720744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 23730744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 23740744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 23759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 2376e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn // Handle #pragma weak 2377e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2378e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (ND->hasLinkage()) { 2379e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakInfo W = WeakUndeclaredIdentifiers.lookup(ND->getIdentifier()); 2380e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (W != WeakInfo()) { 23817b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn // Identifier referenced by #pragma weak before it was declared 23827b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn DeclApplyPragmaWeak(S, ND, W); 2383e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakUndeclaredIdentifiers[ND->getIdentifier()] = W; 2384e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2385e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2386e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2387e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 23880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 23890744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 23909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2391bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23920744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 23930744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 23940744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 23950744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 23960744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 23970744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 23989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2399bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24000744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 24010744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 24029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 24030744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 240454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 240554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 240654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 240754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 240854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 240954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 241054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallAction::ParsingDeclStackState Sema::PushParsingDeclaration() { 241154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 24122f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 241354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 241454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 241554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, DeclPtrTy Ctx) { 241654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 241754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 241854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 24192f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 242054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 242154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 242254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 24232f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 242454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 242554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 242658e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 242758e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24282f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 24292f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 24302f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *D = Ctx ? Ctx.getAs<Decl>() : 0; 24312f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 24322f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 24332f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 24342f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 24352f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 24362f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 24372f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 243858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 24392f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 24402f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 24412f514480c448708ec382a684cf5e035d3a827ec8John McCall 24422f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 24432f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 24442f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 24452f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 24462f514480c448708ec382a684cf5e035d3a827ec8John McCall 24472f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 24482f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 24492f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 245054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 245154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 245254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 245354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 245458e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 245558e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 245658e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 245758e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 24582f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 24592f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24602f514480c448708ec382a684cf5e035d3a827ec8John McCall 24612f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 24622f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 24632f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 24642f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 24652f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 24662f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 24672f514480c448708ec382a684cf5e035d3a827ec8John McCall} 24682f514480c448708ec382a684cf5e035d3a827ec8John McCall 24692f514480c448708ec382a684cf5e035d3a827ec8John McCallvoid Sema::HandleDelayedDeprecationCheck(Sema::DelayedDiagnostic &DD, 24702f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 24712f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 24722f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 24732f514480c448708ec382a684cf5e035d3a827ec8John McCall 24742f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 24752f514480c448708ec382a684cf5e035d3a827ec8John McCall Diag(DD.Loc, diag::warn_deprecated) 24762f514480c448708ec382a684cf5e035d3a827ec8John McCall << DD.DeprecationData.Decl->getDeclName(); 247754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 247854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 247954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::EmitDeprecationWarning(NamedDecl *D, SourceLocation Loc) { 248054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 248154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 24822f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D)); 248354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 248454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 248554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 248654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 248754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 248854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 248954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 249054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 249154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 2492