SemaDeclAttr.cpp revision 3c989027f68e2d9dfd57c018ccc550bd9fb79920
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 146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "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)) 121d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian 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 132183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType *ClsT =PT->getPointeeType()->getAs<ObjCInterfaceType>(); 1336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!ClsT) 1346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 135bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner IdentifierInfo* ClsName = ClsT->getDecl()->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(); 153085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (RD->getTagKind() != TagDecl::TK_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 262eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 263bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 264bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 265d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 266fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2675dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 268eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 269eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 270bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 271d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 272eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 273eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 274eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 275bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 276eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 277eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 278bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 279bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 280eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 281f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 282eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 283eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (!Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 284fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 285fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 286eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 287eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 288bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 289eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 290bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 291eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 292fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 29330bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 294eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 295eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 296bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 297465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 298eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 299eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 300bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump QualType T = getFunctionOrMethodArgType(d, x); 301dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 302eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 303fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_nonnull_pointers_only) 304fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3057fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 306eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 307bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 308eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 309eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 310bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 311bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 312bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3137fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 31446bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 31546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 316dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 317d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 31846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 319bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3207fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3217fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3227fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3237fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3257fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3267fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3277fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 3287fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek std::sort(start, start + size); 3295961611172f1c210fbbaa55b3c692e13b1fc7be4Ted Kremenek d->addAttr(::new (S.Context) NonNullAttr(S.Context, start, size)); 330eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 331eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 33211e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic bool isStaticVarOrStaticFunciton(Decl *D) { 33311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 33411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return VD->getStorageClass() == VarDecl::Static; 33511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 33611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return FD->getStorageClass() == FunctionDecl::Static; 33711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 33811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 33911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 34011e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 34111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 34211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 34311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 34411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 34511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 34611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 34711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 34811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 34911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 35011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 35111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 35211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 35311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 35411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 35511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 35611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 35711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (const DeclContext *Ctx = d->getDeclContext()) { 35811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Ctx = Ctx->getLookupContext(); 35911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isa<TranslationUnitDecl>(Ctx) && !isa<NamespaceDecl>(Ctx) ) { 36011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 36111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 36211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 36311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 36411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 36511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 36611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 36711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 36811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 36911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 37011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 37111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 37211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 37311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 37411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 37511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 37611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 37711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 37811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 37911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 38011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 38111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 38211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 38311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 38411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (!isStaticVarOrStaticFunciton(d)) { 38511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 38611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 38711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 38811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 38911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 39011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 39111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 39211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 39311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 39411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 39511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 39611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 39711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 39811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 39911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 40011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 40111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 40211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 40311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 40411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 40511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 40611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola d->addAttr(::new (S.Context) AliasAttr(S.Context, Str->getString())); 40711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 40811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 40911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola d->addAttr(::new (S.Context) WeakRefAttr()); 41011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 41111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 412803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 414545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 4153c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 4166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 418bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 419545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 4206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 4216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 422bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 4236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 424fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 4253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 4266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 428bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 4296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 430bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 4313d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) AliasAttr(S.Context, Str->getString())); 4326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 434bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 435af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 436af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 437af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 4383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 439af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 440af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 4415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 442c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 4435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4445dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 4455bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 4465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 447bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 44840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlwaysInlineAttr()); 449af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 450af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 45176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 45276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn // check the attribute arguments. 45376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 45476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 45576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 45676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4582cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 4591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 4602cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 4612cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek d->addAttr(::new (S.Context) MallocAttr()); 4622cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 4632cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 464fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 465fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 4662cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 46776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 46876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 469b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic bool HandleCommonNoReturnAttr(Decl *d, const AttributeList &Attr, 4705dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek Sema &S) { 4716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 472545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 4733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 474b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return false; 4756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 476d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 47719c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 47819c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 4793ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 4803ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 481bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 482bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 483bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 4845dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 48519c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump return false; 48619c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 4876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 488bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 489b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return true; 490b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 491b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 492b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 49304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Don't apply as a decl attribute to ValueDecl. 49404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // FIXME: probably ought to diagnose this. 49504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (isa<ValueDecl>(d)) 49604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return; 49704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 498bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (HandleCommonNoReturnAttr(d, Attr, S)) 49940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoReturnAttr()); 500b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 501b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 502b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 503b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek Sema &S) { 504bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (HandleCommonNoReturnAttr(d, Attr, S)) 50540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AnalyzerNoReturnAttr()); 5066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 508bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 509bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 510bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 51104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 512bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 513bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 514bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 515bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 516bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 51773798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 51873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 51973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 5203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 52173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 52273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 523bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 5242ec93a8ec874088f7c410da46546ebdac94f258cTed Kremenek if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d)) { 525fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5265dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 52773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 52873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 529bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 53040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnusedAttr()); 53173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 53273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 533b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 534b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 535b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 536b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 537b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 538b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 539bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 540b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 541186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 542b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 543b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 544b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 545b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 546b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5475dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 548b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 549b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 550bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 55140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UsedAttr()); 552b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 553b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 5543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 5563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 557fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 558fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 5593068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 560bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 5613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 5633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 5643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 5653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 5663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 567fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 5693068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5703068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5713068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 573bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 574c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 575fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5765dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 5773068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5793068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 58040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstructorAttr(priority)); 5813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 5853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 586fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 587fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 5883068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 589bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 5903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 5923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 5933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 5943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 5953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 596fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5973c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 5983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 6003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 6013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 602bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6036782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 604fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 6055dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 6063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 6073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 6083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 60940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DestructorAttr(priority)); 6103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 6113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 612803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 614545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 6153c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 6166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 618bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 61940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DeprecatedAttr()); 6206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 622bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 623bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 624bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 625bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 626bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 627bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 628bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 62940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnavailableAttr()); 630bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 631bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 632803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 634545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 638bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 639545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 6406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 642bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 644fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6453c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 6466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 648bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 649c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 6506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 651bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 652c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 6536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 654c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 6556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 656c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 6576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 658c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 6596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 6606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 66108631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 6626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 664bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 66540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) VisibilityAttr(type)); 6666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 6680db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 6690db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 6700db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 6710db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 6720db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6730db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 674bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6750db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 6760db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 6770db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 6780db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6790db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 680bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 68140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr()); 6820db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 6830db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6840db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 685fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 686fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 687fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 688fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6890db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 690fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 691fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 6926217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 693fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 694fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 695fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 696fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 69740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr()); 698fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 699fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 700bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 701f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 702f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 703f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 704f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 705f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 706f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 707f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 708f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 709f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 710f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 711f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 71240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr()); 713f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 714f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 7159eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 716bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 717fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 7183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 7199eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 7209eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 721bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7229eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 7233c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 7249eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 7259eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 726bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7279eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 72892e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 7299eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 7309eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 731fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 7323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 7339eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 7349eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 735bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 73640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) BlocksAttr(type)); 7379eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 7389eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 739770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 740770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 741770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 742fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 743fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 744770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 745bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 746bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 747770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 748770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 749770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 750770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 751770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 752fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 7533c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 754770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 755770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 756770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 757bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 758770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 759fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 760fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 761770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 762770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 763770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 764770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 765770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 766770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 767770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 768770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 769770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 770fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 7713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 772770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 773770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 774770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 775bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 776770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 777770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 778770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 779fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 780fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 781770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 782770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 783770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 784770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 785770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 786183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 787897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 788bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 789897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 790897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 791897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 792897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 793bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 794897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 7953bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 796770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 797bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 798770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 799770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 8003bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 801770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 8022f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 8032f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 804bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 805bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 8062f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 8072f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 8082f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 809daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 810bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 811183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 8122f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 8133bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 8143bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 8152f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 8162f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 817ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 8182f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 819ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 8202f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 8212f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 822770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 823fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 824ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 825770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 826770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 82740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) SentinelAttr(sentinel, nullPos)); 828770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 829770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 830026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 831026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 832026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 833026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 834026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 835026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 836026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 83748108fdb9c3bcffe5bccd88a1a91353a4df71629Ted Kremenek if (!isFunction(D)) { 838026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8395dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 840026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 841026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 842bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 843f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes if (getFunctionType(D)->getResultType()->isVoidType()) { 844f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes S.Diag(Attr.getLoc(), diag::warn_attribute_void_function) 845f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes << Attr.getName(); 846f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 847f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 848f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes 849d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes D->addAttr(::new (S.Context) WarnUnusedResultAttr()); 850026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 851026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 852026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 854545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8553c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 859f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 86011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (isStaticVarOrStaticFunciton(D)) { 861f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 862f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 863f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 864f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 865f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 8666e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 8676e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 8686e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8695dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8706e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8716e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 872bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 87340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakAttr()); 8746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 8766e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8776e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 8786e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 8796e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8806e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 881bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 8826e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8836e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 8846e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 8856e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 8866e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 8876e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 8886fb0aee4f9dc261bbec72e1283ad8dc0557a6d96Argyrios Kyrtzidis isDef = FD->getBody(); 889d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 890d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 8911c90f4dc686ab872013544664c797604a309c563Mike Stump return; 8925f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 8936e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8945dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8956e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8966e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8976e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8986e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 8996e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 900bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 9016e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 9026e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 9036e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 9046e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 9056e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 90640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr()); 9076e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 9086e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 9096f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 9106f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 9116f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 9126f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 9136f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9146f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 9156f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 9166f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 9176f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 9186f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 9196f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 9206f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 9216f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (!E->isIntegerConstantExpr(ArgNum, S.Context)) { 9226f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 9236f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 9246f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 9256f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 9266f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 9276f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 92840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(WGSize[0], WGSize[1], 9296f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 9306f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 9316f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 932026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 93317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 93417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 93517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 93617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 93717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 93817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 93917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 94017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 941797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 942797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 94317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 944797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 94517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 94617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 948797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 949bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 950a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 951a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 952a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 953797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 954797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 9551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 956a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 957a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 958a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 959a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 960a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 961a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 9623d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek D->addAttr(::new (S.Context) SectionAttr(S.Context, SE->getString())); 96317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 96417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 9656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 966803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 968545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9693c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 972bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 97340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoThrowAttr()); 9746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 976232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 977232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 978232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 980232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 981232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 982bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 98340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstAttr()); 984232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 985232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 986232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 987232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 988232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9893c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 990232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 991232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 992bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 99340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) PureAttr()); 994232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 995232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 996f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 997bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 998f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 999f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1000f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1001bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1002f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1003f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1004f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1005f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1006bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1007f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1008bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1009f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1010f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1011f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1012f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1013bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1014f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1015f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1016f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 1017f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall Sema::LookupOrdinaryName); 1018f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 101989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1020f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1021f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1022f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1023bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1024f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1025f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 102689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1027f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1028f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1029f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1030f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1031f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 103289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1033f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1034f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1035f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1036bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 103789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 103889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 103989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 104089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1041d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1042bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 104389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 104489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 104589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 104689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1047bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 104840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CleanupAttr(FD)); 1049f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1050f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1051bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1052bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1053bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10545b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 10555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 10565b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 10575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 10585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 10595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 10605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 10615b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 10625b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1063bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // FIXME: in C++ the implicit 'this' function parameter also counts. this is 1064bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // needed in order to be compatible with GCC the index must start with 1. 10655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned NumArgs = getFunctionOrMethodNumArgs(d); 10665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 10675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 10685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 10695b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 10705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 10715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10725b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 10735b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 10745b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1075bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10765b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 10775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 10785b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 10795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 10805b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1081bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10825b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1083bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10845b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 10855b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1086bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10875b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 10885b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 10895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 10905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 10916217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 10925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 10935b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1094bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 10955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 10965b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1097bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 10985b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 10995b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 11005b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 11015b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 11026217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 11035b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 11045b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1105bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 11065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 11075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1108bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1109bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 111040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) FormatArgAttr(Idx.getZExtValue())); 11115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 11125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 11132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 11142b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 11152b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 11162b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 11172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 11183c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 11192b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 11202b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 11212b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 11222b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 11232b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 11242b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 11252b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 11262b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 11272b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 11282b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 11292b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 11302b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 11312b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 11322b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 11332b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 11342b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 11352b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 11362b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 11372b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 11382b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 11392b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 11403c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Format == "gcc_tdiag") 11413c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 11423c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 11432b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 11442b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 11452b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1146bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1147bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1148803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 11496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1150545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1151fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 11523c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 11536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1156545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 11573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 11586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1161620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1162fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11635dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 11646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11673568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 11686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 11696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 117001eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 11716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 11732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 11742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 11752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 11762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 11772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 11783c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 11793c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 11803c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 11813c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 11822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1183fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 118401eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 11856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1189545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1190803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1191803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1192fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 11946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11974fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // FIXME: We should handle the implicit 'this' parameter in a more generic 11984fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson // way that can be used for other arguments. 11994fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson bool HasImplicitThisParam = false; 12004fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(d)) { 12014fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson if (MD->isInstance()) { 12024fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson HasImplicitThisParam = true; 12034fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson NumArgs++; 12044fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 12054fb77202ceef22a572cf4357f380b08f6bcc5c36Anders Carlsson } 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1208fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 12093c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 12106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 12146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1215bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12164a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 12174a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 12184a2614e94672c47395abcde60518776fbebec589Sebastian Redl S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 12194a2614e94672c47395abcde60518776fbebec589Sebastian Redl << "a string type" << IdxExpr->getSourceRange(); 12204a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 12214a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 12224a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 12234a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 12263568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 12276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12282b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1229085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1230fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1231fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1232085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1233085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 12342b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1235390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1236390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1237803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1238390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1239fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1240fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 12416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1242bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 12436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 12446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1245390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1246fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1247fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 12486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1252545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1253803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1254803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1255fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 12563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 12576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 12616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 12623568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 12636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 12646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1265803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 12666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 12713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 12722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 12736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1274fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1275fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 12766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 12796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1280fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 12813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 12826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12853d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) FormatAttr(S.Context, Format, Idx.getZExtValue(), 12862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 12876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12890b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 12900b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 12916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1292545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12970c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 12980c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1299bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 13000c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 13010c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 13020c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 13030c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 13040c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 13050c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1306fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13075dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 13086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13110c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1312bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 13130c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 13140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 13150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 13160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 131717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 131817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 13190c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 13200c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 13210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 13220c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1323bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 13240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 13250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 13260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (FirstType->isFloatingType() || FirstType->isVectorType()) { 1327bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 13280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_floating); 13290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 13300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1331bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 13320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 13330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 13340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 13350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 13360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 13370c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 13380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 13390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1340bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 13410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 13430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 13440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 13450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1346bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 13470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 13480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1349bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1350bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1351bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 13526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 135340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr()); 13546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13560b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1358545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 13593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1362797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner Expr *ArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1363797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1364bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 13666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 13676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1368797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 13696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13713d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek d->addAttr(::new (S.Context) AnnotateAttr(S.Context, SE->getString())); 13726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1374803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAlignedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1376545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 13773c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1380bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1381bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1382bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1383bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 13846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned Align = 0; 1386545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 13876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 13887549c5589ac0d2087e55f2bdd4854adef23f29fdDaniel Dunbar // (For now we just use 128 bits which is the maximum on X86). 13896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Align = 128; 139040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlignedAttr(Align)); 13916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1393bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 139449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner Expr *alignmentExpr = static_cast<Expr *>(Attr.getArg(0)); 139549e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 1396803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!alignmentExpr->isIntegerConstantExpr(Alignment, S.Context)) { 1397fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1398fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "aligned" << alignmentExpr->getSourceRange(); 139949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 140049e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1401396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 1402bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), diag::err_attribute_aligned_not_power_of_two) 1403396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar << alignmentExpr->getSourceRange(); 1404396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1405396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1406396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 140740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlignedAttr(Alignment.getZExtValue() * 8)); 14086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1409fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1410bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1411bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1412fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1413bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1414bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1415bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 14160b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1417fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1418fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1419fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1420fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1421fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 14223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1423fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1424fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1425fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1426fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1427fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 14280b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1429fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1430fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1431210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 143201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1433fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1434fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1435210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1436210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1437fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1438fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1439fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 144073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1441210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1442fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 144373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 144473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 144573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 144673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 144773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 144873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 144973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 145073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 145173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 145273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 145373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 145473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 145573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 145673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 145773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 145873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1459fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1460fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1461fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1462fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1463210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 14640b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1465210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 14660b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1467fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1468fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1469210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 14700b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1471fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1472fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1473fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1474fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1475fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1476fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1477fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1478fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1479fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1480fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1481fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1482fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1483fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 148473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1485183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 148673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 148773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 148873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isIntegralType()) 148973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 149073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 149173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 149273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 149373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 149473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 149573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 149673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 149773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1498390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1499390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1500390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1501390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1502f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1503f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1504fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1505fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1506fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 15073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1508fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1509fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 15103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1511fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1512fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 151373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 151473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 151573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 151673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1517fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 15180b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1519fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15200b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1521fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1522fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 152373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 152473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 152573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 152673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1527fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 15280b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1529fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15300b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1531fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1532fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1533fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 15340b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1535fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 15360b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1537fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15380b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1539fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1540fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1541fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 15420b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1543fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 1544aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1545aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 1546aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1547aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 1548fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1549aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 1550aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 1551aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 1552aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 1553fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 155473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 155573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 155673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1557f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1558f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1559f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1560f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1561f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1562f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 1563f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 1564f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 1565f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 156673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1567fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1568fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 156973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 157073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1571fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1572fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1573fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1574ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1575ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 1576a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 1577ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 1578fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1579fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 15800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 15811feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1582d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1583d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1584d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1585d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1586d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1587e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 15885bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1589d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15905dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1591d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1592d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1593bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15941feade8e520be483293dbf55eb57a51720899589Mike Stump d->addAttr(::new (S.Context) NoDebugAttr()); 1595d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1596d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 15971feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 15985bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 15995bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 16005bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 16015bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 16025bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1603bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1604c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 16055bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16065dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 16075bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 16085bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1609bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16101feade8e520be483293dbf55eb57a51720899589Mike Stump d->addAttr(::new (S.Context) NoInlineAttr()); 16115bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 16125bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 1613cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 161426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 161526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 161626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 161726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 161826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1619bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1620c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1621c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 162226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16235dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 162426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 162526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 1626bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16270130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 1628cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1629c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1630c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1631bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 163240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) GNUInlineAttr()); 163326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 163426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1635ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1636ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 1637ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 163855d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1639ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1640ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 164155d3aaf9a537888734762170823daf750ea9036dEli Friedman 1642ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 1643ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16445dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1645ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1646ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 164755d3aaf9a537888734762170823daf750ea9036dEli Friedman 164855d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 164955d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 165055d3aaf9a537888734762170823daf750ea9036dEli Friedman if (!NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 165155d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 165255d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 165355d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 165455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 165555d3aaf9a537888734762170823daf750ea9036dEli Friedman 1656264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 1657264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 165855d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 165955d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 166055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 166155d3aaf9a537888734762170823daf750ea9036dEli Friedman 1662348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 1663264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 1664264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 166555d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 166655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 166755d3aaf9a537888734762170823daf750ea9036dEli Friedman 166840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) RegparmAttr(NumParams.getZExtValue())); 1669ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 1670ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 1671bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleFinalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1672bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // check the attribute arguments. 1673bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (Attr.getNumArgs() != 0) { 1674bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1675bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1676bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 1677bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1678bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isa<CXXRecordDecl>(d) 1679bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt && (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual())) { 1680bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), 1681bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 1682bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt : diag::warn_attribute_wrong_decl_type) 1683bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt << Attr.getName() << 7 /*virtual method or class*/; 1684bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1685bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 16867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 16877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 16887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 16897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<FinalAttr>()) { 16907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "final"; 16917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 16927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 1693bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1694bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt d->addAttr(::new (S.Context) FinalAttr()); 1695bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 1696bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 16970744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 16987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 16997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 17007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 17027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 17037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 17047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 17087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 17097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 17107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 17117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 17127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17137725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 17167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 17177725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) BaseCheckAttr()); 17217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 17227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 17247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 17257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 17267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17297725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 17307725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 17317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 17327725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 17337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 17347725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 17357725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17367725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17377725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17387725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 17397725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 17417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 17427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) HidingAttr()); 17467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 17477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 17497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 17507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 17517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 17557725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 17567725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 17577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 17587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 17597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 17607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 17647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 17667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 17677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 17687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 17697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt d->addAttr(::new (S.Context) OverrideAttr()); 17717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 17727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 17737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 1774b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 1775b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 1776b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1777b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 1778b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 1779b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 17805dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 1781bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17825dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 17835dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 17845dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 17855dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 17865dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 178721531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 178821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 178921531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 1790b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1791b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 1792bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17936217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 1794183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 179521531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 179621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 179721531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 1798bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 17995dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 1800bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1801b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 1802b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 1803b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 1804b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 180531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 180631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr()); 180731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 180831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 180931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr()); 181031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 1811b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 181240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CFReturnsRetainedAttr()); 1813b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1814b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 181540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NSReturnsRetainedAttr()); 1816b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1817b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 1818b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 1819b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1820f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 1821f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 1822f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis Attr.getKind() == AttributeList::AT_dllexport; 1823f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 1824f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 1825b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 18260744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 18270744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 18280744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1829a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 1830803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 1831bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 1832bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 1833bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void ProcessDeclAttribute(Scope *scope, Decl *D, 1834bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const AttributeList &Attr, Sema &S) { 1835f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 1836f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis // FIXME: Try to deal with other __declspec attributes! 1837290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 1838803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 183963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 184063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 1841803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 1842ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 18436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 1844bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 1845bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 1846803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 18477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 18487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 1849bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 1850af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 1851b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 1852bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 18537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 18547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 1855bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 18567725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 18577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 18587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 18597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 18603068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 18619cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 18623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 18637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_final: HandleFinalAttr (D, Attr, S); break; 18647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 18657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 18667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 18677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 18687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 18697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 18707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 18717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 18727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 18737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 1874b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1875b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 187631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 187731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 1878b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 1879b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 1880b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 1881b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 18826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 18836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 18846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 18857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 18867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 18877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 18887725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 18897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 18907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 1891026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 1892026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 18937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 189411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 18957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 1896803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 1897803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 1898803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 18990db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 19000db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 19010db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 1902f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 19037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 19047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 19057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 19067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 19077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 19087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 19097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 19107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 19117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 1912bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 19135e204486a7dd1e5f7e14e941a2c7e707a8ad1a3bChris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 191405f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 191505f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 191604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 191704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 191804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 191904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // These are all treated as type attributes. 192004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 1921803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 192282d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 192382d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 192482d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 192582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1926803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1927803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1928803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1929803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1930803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 1931803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 19329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 193311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 193411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola ProcessDeclAttribute(S, D, *l, *this); 193511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 193611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 193711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 193811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 193911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 194011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 194111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 194211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(D)->getNameAsString(); 194311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 1944803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1945803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1946803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1947e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 1948e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 19491eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 19507b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 1951e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 1952e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 1953e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 1954e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 1955a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 1956b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 1957b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 1958b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 1959b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 1960e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 1961e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 1962e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 1963a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 1964a1d5662d96465f0fddf8819d245da4d19b892effArgyrios Kyrtzidis VD->getStorageClass()); 1965b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 1966b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 1967b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 1968b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 1969e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 1970e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 1971e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 1972e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 1973e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 1974e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 19757b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 1976c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 1977c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 1978c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 1979c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 1980c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 19813d2c43e9a7ca55f5ddc1f0c77d8f5e5ea7c1b573Ted Kremenek NewD->addAttr(::new (Context) AliasAttr(Context, NDId->getName())); 1982c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NewD->addAttr(::new (Context) WeakAttr()); 1983c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 1984c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 1985c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 1986c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 1987c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 1988c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 1989c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 1990c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 1991c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner ND->addAttr(::new (Context) WeakAttr()); 1992e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 1993e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 1994e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 19950744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 19960744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 19970744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 19989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 1999e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn // Handle #pragma weak 2000e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2001e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (ND->hasLinkage()) { 2002e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakInfo W = WeakUndeclaredIdentifiers.lookup(ND->getIdentifier()); 2003e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (W != WeakInfo()) { 20047b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn // Identifier referenced by #pragma weak before it was declared 20057b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn DeclApplyPragmaWeak(S, ND, W); 2006e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn WeakUndeclaredIdentifiers[ND->getIdentifier()] = W; 2007e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2008e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2009e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2010e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 20110744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 20120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 20139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2014bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 20150744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 20160744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 20170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 20180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 20190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 20200744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 20219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 2022bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 20230744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 20240744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 20259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 20260744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 202754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 202854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 202954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 203054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 203154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 203254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 203354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallAction::ParsingDeclStackState Sema::PushParsingDeclaration() { 203454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 20352f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 203654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 203754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 203854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, DeclPtrTy Ctx) { 203954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 204054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 204154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 20422f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 204354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 204454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 204554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 20462f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 204754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 204854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 204958e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 205058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 20512f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 20522f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 20532f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *D = Ctx ? Ctx.getAs<Decl>() : 0; 20542f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 20552f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 20562f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 20572f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 20582f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 20592f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 20602f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 206158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 20622f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 20632f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 20642f514480c448708ec382a684cf5e035d3a827ec8John McCall 20652f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 20662f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 20672f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 20682f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 20692f514480c448708ec382a684cf5e035d3a827ec8John McCall 20702f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 20712f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 20722f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 207354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 207454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 207554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 207654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 207758e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 207858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 207958e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 208058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 20812f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 20822f514480c448708ec382a684cf5e035d3a827ec8John McCall} 20832f514480c448708ec382a684cf5e035d3a827ec8John McCall 20842f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 20852f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 20862f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 20872f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 20882f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 20892f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 20902f514480c448708ec382a684cf5e035d3a827ec8John McCall} 20912f514480c448708ec382a684cf5e035d3a827ec8John McCall 20922f514480c448708ec382a684cf5e035d3a827ec8John McCallvoid Sema::HandleDelayedDeprecationCheck(Sema::DelayedDiagnostic &DD, 20932f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 20942f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 20952f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 20962f514480c448708ec382a684cf5e035d3a827ec8John McCall 20972f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 20982f514480c448708ec382a684cf5e035d3a827ec8John McCall Diag(DD.Loc, diag::warn_deprecated) 20992f514480c448708ec382a684cf5e035d3a827ec8John McCall << DD.DeprecationData.Decl->getDeclName(); 210054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 210154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 210254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCallvoid Sema::EmitDeprecationWarning(NamedDecl *D, SourceLocation Loc) { 210354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 210454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 21052f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D)); 210654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 210754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 210854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 210954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 211054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 211154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 211254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 211354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 211454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 2115