SemaDeclAttr.cpp revision 40b598eea1310ec9ed554d56ce3e25b34c585458
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" 156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 16acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 17acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 18fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 1912bc692a78582f1cc32791325981aadcffb04c5eDaniel Dunbar#include "clang/Parse/DeclSpec.h" 206e1eb87c04a3acd50888375dad59fac06b7ceb1fTed Kremenek#include <llvm/ADT/StringExtras.h> 216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 24e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 25e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 26e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 27755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanianstatic const FunctionType *getFunctionType(Decl *d, bool blocksToo = true) { 286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (ValueDecl *decl = dyn_cast<ValueDecl>(d)) 306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *decl = dyn_cast<FieldDecl>(d)) 326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = Ty->getAsPointerType()->getPointeeType(); 40755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 41620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian Ty = Ty->getAsBlockPointerType()->getPointeeType(); 42d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 43d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return Ty->getAsFunctionType(); 446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 463568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 473568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 483568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 49d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// isFunctionOrMethod - Return true if the given decl has function 50d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 51d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 523568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethod(Decl *d) { 53755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian return getFunctionType(d, false) || isa<ObjCMethodDecl>(d); 54d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 553568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 56620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 57620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 58620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 59620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanianstatic bool isFunctionOrMethodOrBlock(Decl *d) { 60620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 61620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 62620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 63620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 64620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 65620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 66620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 67d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 68620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 69620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 70d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 71d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 72620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 73d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbarstatic bool hasFunctionProto(Decl *d) { 74620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 7572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 76620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 77d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 78d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 79d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 803568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 813568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 83d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 84d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 853568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic unsigned getFunctionOrMethodNumArgs(Decl *d) { 8689951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 8772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 88d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 89d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 9089951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 913568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 923568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 933568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic QualType getFunctionOrMethodArgType(Decl *d, unsigned Idx) { 9489951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 9572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 96d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 97d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 98620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 9989951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1003568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1013568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 1025b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanianstatic QualType getFunctionOrMethodResultType(Decl *d) { 1035b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1045b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1055b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 1083568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethodVariadic(Decl *d) { 109d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 11072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1113568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 112d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 113d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->IsVariadic(); 114d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1153568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1163568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1173568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1183568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 1196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 120b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const PointerType *PT = T->getAsPointerType(); 121b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 1236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 124b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const ObjCInterfaceType *ClsT =PT->getPointeeType()->getAsObjCInterfaceType(); 1256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!ClsT) 1266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 1276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner IdentifierInfo* ClsName = ClsT->getDecl()->getIdentifier(); 1296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 135085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 136085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const PointerType *PT = T->getAsPointerType(); 137085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 138085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 139085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 140085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordType *RT = PT->getPointeeType()->getAsRecordType(); 141085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 142085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 143085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 144085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 145085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (RD->getTagKind() != TagDecl::TK_struct) 146085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 147085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 148085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 149085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 150085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 151e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 152e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 153e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 154e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1573068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1583068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1599cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 1609cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 161545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 162545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 163803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 164545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1699cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 1709cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 1729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 1739cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor sizeExpr = S.ActOnDeclarationNameExpr(scope, Attr.getLoc(), 1749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Attr.getParameterName(), 1759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor false, 0, false).takeAs<Expr>(); 1769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 1779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 1789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 1799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 1819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 1829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 1869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 1879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor QualType T = S.BuildExtVectorType(curType, S.Owned(sizeExpr), Attr.getLoc()); 1889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 1899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor tDecl->setUnderlyingType(T); 1909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 1929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 1936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 196065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 197065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// HandleVectorSizeAttribute - this attribute is only applicable to 198065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// integral and float scalars, although arrays, pointers, and function 199065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// return values are allowed in conjunction with this construct. Aggregates 200065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// with this attribute are invalid, even if they are of the same size as a 201065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// corresponding scalar. 202065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// The raw attribute should contain precisely 1 argument, the vector size 203065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// for the variable, measured in bytes. If curType and rawAttr are well 204065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// formed, this routine will return a new vector type. 205803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVectorSizeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 206065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner QualType CurType; 207065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 208065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = VD->getType(); 209065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 210065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = TD->getUnderlyingType(); 211065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else { 212fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 213fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << SourceRange(Attr.getLoc(), Attr.getLoc()); 214065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 215065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner } 216065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 217065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Check the attribute arugments. 218545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 2193c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 220065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 222545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 2236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 224803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 225fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 226fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << sizeExpr->getSourceRange(); 227065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // navigate to the base type - we need to provide for vector pointers, 2306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vector arrays, and functions returning vectors. 231b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (CurType->isPointerType() || CurType->isArrayType() || 232b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner CurType->isFunctionType()) { 2332db15bdd945163eacfa4623fd2e32a536ed2dd3bChris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_vector_size) << CurType; 2342db15bdd945163eacfa4623fd2e32a536ed2dd3bChris Lattner return; 2356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner /* FIXME: rebuild the type from the inside out, vectorizing the inner type. 2366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner do { 2376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (PointerType *PT = dyn_cast<PointerType>(canonType)) 2386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = PT->getPointeeType().getTypePtr(); 2396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (ArrayType *AT = dyn_cast<ArrayType>(canonType)) 2406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = AT->getElementType().getTypePtr(); 2416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FunctionType *FT = dyn_cast<FunctionType>(canonType)) 2426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = FT->getResultType().getTypePtr(); 2436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } while (canonType->isPointerType() || canonType->isArrayType() || 2446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType->isFunctionType()); 2456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner */ 2466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24782afa2d97d39cc0d5a4897716ec0a80aeab9e14bChris Lattner // the base type must be integer or float, and can't already be a vector. 24882afa2d97d39cc0d5a4897716ec0a80aeab9e14bChris Lattner if (CurType->isVectorType() || 24982afa2d97d39cc0d5a4897716ec0a80aeab9e14bChris Lattner (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 250d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 251065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 253803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 2546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vecSize is specified in bytes - convert to bits. 2556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 2566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the vector size needs to be an integral multiple of the type size. 2586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize % typeSize) { 259fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 260fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 261065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 264fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 265fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 266065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 268065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 269065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Success! Instantiate the vector type, the number of elements is > 0, and 270065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // not required to be a power of 2, unlike GCC. 271803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize); 272065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 273065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 274065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner VD->setType(CurType); 275065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else 276065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner cast<TypedefDecl>(D)->setUnderlyingType(CurType); 2776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 279803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 281545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 28740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis TD->addAttr(::new (S.Context) PackedAttr(1)); 2886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 292803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 293fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 29408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 29640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis FD->addAttr(::new (S.Context) PackedAttr(1)); 2976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2983c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 3006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 30196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenekstatic void HandleIBOutletAttr(Decl *d, const AttributeList &Attr, Sema &S) { 30296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 30396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 3043c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 30596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 30696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 30796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 30896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // The IBOutlet attribute only applies to instance variables of Objective-C 30996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // classes. 310327426076e1acc8217307cb236269ccf08c18fe6Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) 31140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) IBOutletAttr()); 31296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek else 313327426076e1acc8217307cb236269ccf08c18fe6Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet); 31496329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 31596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 316eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 317eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // GCC ignores the nonnull attribute on K&R style function 318eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // prototypes, so we ignore it as well 319d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 320fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3215dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 322eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 325d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 326eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 328eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 329eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 330eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 331eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 332eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 333eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 334eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 335f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (!Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 338fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 339fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 340eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 341eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 342eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 344eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 345eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 346fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 34730bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 348eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 349eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 350465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek 351465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 352eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 353eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 35446bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, x); 35546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (!T->isPointerType() && !T->isBlockPointerType()) { 356eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 357fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_nonnull_pointers_only) 358fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3597fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 360eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 361eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 362eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 363eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 364eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 3657fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // If no arguments were specified to __attribute__((nonnull)) then all 3667fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // pointer arguments have a nonnull attribute. 3677fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 36846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 36946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 37046bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (T->isPointerType() || T->isBlockPointerType()) 371d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 37246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 3737fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3747fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3757fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3767fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3777fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 378eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3797fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3807fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3817fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 3827fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek std::sort(start, start + size); 38340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NonNullAttr(start, size)); 384eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 385eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 386803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 3876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 388545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3893c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 393545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 3946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 3956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 3966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 398fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3993c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 4006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 4026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 4036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *Alias = Str->getStrData(); 4046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned AliasLen = Str->getByteLength(); 4056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 4066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 4076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 40840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AliasAttr(std::string(Alias, AliasLen))); 4096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 411af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbarstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 412af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 413af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 414af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 4153c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 416af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 417af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 4185bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 419c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 4205bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4215dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 4225bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 4235bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 424af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 42540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlwaysInlineAttr()); 426af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 427af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 428b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic bool HandleCommonNoReturnAttr(Decl *d, const AttributeList &Attr, 4295dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek Sema &S) { 4306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 431545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 4323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 433b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return false; 4346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 435d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 43619c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 43719c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 43819c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (VD == 0 || !VD->getType()->isBlockPointerType()) { 43919c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4405dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 44119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump return false; 44219c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 4436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 4446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 445b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return true; 446b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 447b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 448b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4495dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (HandleCommonNoReturnAttr(d, Attr, S)) 45040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoReturnAttr()); 451b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 452b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 453b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 454b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek Sema &S) { 4555dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (HandleCommonNoReturnAttr(d, Attr, S)) 45640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AnalyzerNoReturnAttr()); 4576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 45973798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 46073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 46173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 4623c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 46373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 46473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 46573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 466d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isa<VarDecl>(d) && !isFunctionOrMethod(d)) { 467fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4685dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 46973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 47073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 47173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 47240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnusedAttr()); 47373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 47473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 475b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 476b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 477b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 478b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 479b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 480b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 481b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 482b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 483186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 484b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 485b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 486b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 487b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 488b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4895dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 490b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 491b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 492b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 49340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UsedAttr()); 494b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 495b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 4963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 4983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 499fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 500fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 5013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 5053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 5063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 5073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 5083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 509fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 5113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 516c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 517fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5185dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 5193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 52240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstructorAttr(priority)); 5233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 5273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 528fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 529fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 5303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 5343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 5353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 5363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 5373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 538fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 5403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5413068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5456782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 546fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5475dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 5483068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 55140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DestructorAttr(priority)); 5523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5533068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 554803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 556545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 5573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 5586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 56140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) DeprecatedAttr()); 5626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 564bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 565bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 566bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 567bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 568bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 569bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 570bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 57140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) UnavailableAttr()); 572bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 573bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 574803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 576545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 5773c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 5786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 581545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 5826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 5836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 5846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 586fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 5873c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 5886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *TypeStr = Str->getStrData(); 5926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned TypeLen = Str->getByteLength(); 5936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 5946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TypeLen == 7 && !memcmp(TypeStr, "default", 7)) 5966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 5976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 6 && !memcmp(TypeStr, "hidden", 6)) 5986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 5996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 8 && !memcmp(TypeStr, "internal", 8)) 6006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 6016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 9 && !memcmp(TypeStr, "protected", 9)) 6026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 6036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 60408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 6056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 6076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 60840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) VisibilityAttr(type)); 6096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 6110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 6120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 6130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 6140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 6150db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 6170db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6180db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 6190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 6200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 6210db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6220db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 6230db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 62440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr()); 6250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 6260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 628fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 629fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 630fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 631fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6320db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 633fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 634fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 635fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian !T->getAsPointerType()->getPointeeType()->isRecordType()) { 636fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 637fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 638fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 639fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 64040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr()); 641fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 642fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 643f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregorstatic void 644f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 645f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 646f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 647f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 648f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 649f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 650f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 651f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 652f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 653f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 654f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 65540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr()); 656f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 657f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 6589eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6599eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (!Attr.getParameterName()) { 660fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 6629eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6639eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6649eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6659eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 6663c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6679eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6689eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6699eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 67192e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 6729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 6739eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 674fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 6753c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 6769eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6779eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6789eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 67940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) BlocksAttr(type)); 6809eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 6819eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 682770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 683770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 684770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 685fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 686fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 687770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 688770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 689770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 690770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 691770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 692770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 693770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 694770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 695fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 6963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 697770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 698770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 699770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 700770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 701770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 702fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 703fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 704770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 705770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 706770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 707770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 708770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 709770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 710770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 711770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 712770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 713fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 7143c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 715770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 716770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 717770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 718770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 719770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 720770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 721770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 722fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 723fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 724770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 725770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 726770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 727770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 728770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 729897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner const FunctionType *FT = FD->getType()->getAsFunctionType(); 730897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 731897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner 732897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 733897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 734897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 735897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 736897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner 737897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 7383bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 739770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 740770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 741770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 742770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 7433bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 744770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 7452f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 7462f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 7472f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian // Note! BlockDecl is typeless. Variadic diagnostics 7482f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian // will be issued by the caller. 7492f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 7502f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 7512f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 752daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 753daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 754daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian : Ty->getAsBlockPointerType()->getPointeeType()->getAsFunctionType(); 7552f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 7563bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 7573bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 7582f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 7592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 7602f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 7612f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian else { 7622f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 763ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 7642f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 7652f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 766770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 767fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 768ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 769770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 770770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 77140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) SentinelAttr(sentinel, nullPos)); 772770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 773770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 774026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 775026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 776026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 777026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 778026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 779026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 780026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 781026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // TODO: could also be applied to methods? 782026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 783026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (!Fn) { 784026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7855dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 786026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 787026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 788026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 78940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis Fn->addAttr(::new (S.Context) WarnUnusedResultAttr()); 790026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 791026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 792026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 794545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 7953c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7986e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 7996e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 8006e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 8016e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8025dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8036e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8046e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 80640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakAttr()); 8076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 8096e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8106e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 8116e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 8126e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8136e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8146e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8156e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8166e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 8176e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 8186e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 8196e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 8206e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 8217297134f128423fce2e88f92421ed135bded7d4eDouglas Gregor isDef = FD->getBody(S.Context); 822d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 823d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 8241c90f4dc686ab872013544664c797604a309c563Mike Stump return; 8256e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else { 8266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8275dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 8326e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 8336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), 8346e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 8356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 8366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8386e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 83940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr()); 8406e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 8416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 842026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 844545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8453c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8487b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8492f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 850026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 85140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) DLLImportAttr()); 8522f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8532f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8542f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 855026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 8562f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 8572f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8585dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8592f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8602f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8612f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8622f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllimport attribute is ignored for inlined functions. 8632f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 8642f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 8652f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8662f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8672f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8682f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8692f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // The attribute is also overridden by a subsequent declaration as dllexport. 8702f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 8712f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov for (AttributeList *nextAttr = Attr.getNext(); nextAttr; 8722f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov nextAttr = nextAttr->getNext()) { 8732f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (nextAttr->getKind() == AttributeList::AT_dllexport) { 8742f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8752f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8762f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8772f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8782f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 87940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (D->getAttr<DLLExportAttr>()) { 8802f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8812f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8822f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8832f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 88440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) DLLImportAttr()); 8856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 887026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLExportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 889545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8937b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8942f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 895026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 89640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) DLLExportAttr()); 8972f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8982f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8992f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 900026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 9012f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 9022f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9035dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 9042f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 9052f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 9062f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 9072f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllexport attribute is ignored for inlined functions, 9082f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // unless the -fkeep-inline-functions flag has been used. Warning is emitted; 9092f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 9102f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // FIXME: ... unless the -fkeep-inline-functions flag has been used. 9112f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllexport"; 9122f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 9132f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 9142f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 91540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) DLLExportAttr()); 9166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9186f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 9196f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 9206f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 9216f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 9226f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 9236f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 9246f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 9256f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 9266f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 9276f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 9286f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Expr *E = static_cast<Expr *>(Attr.getArg(i)); 9296f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 9306f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (!E->isIntegerConstantExpr(ArgNum, S.Context)) { 9316f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 9326f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 9336f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 9346f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 9356f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 9366f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 93740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(WGSize[0], WGSize[1], 9386f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 9396f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 9406f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 941026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 94217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 94317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 94417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 94517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 94617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 94717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 94817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 94917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 95017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar StringLiteral *SE = 95117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar dyn_cast<StringLiteral>(static_cast<Expr *>(Attr.getArg(0))); 95217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 95317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // FIXME 95417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 95517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 95617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 95740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis D->addAttr(::new (S.Context) SectionAttr(std::string(SE->getStrData(), 9580b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner SE->getByteLength()))); 95917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 96017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 961803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleStdCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9627b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 963545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9677b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9687b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute can be applied only to functions. 9697b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 9707b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9715dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9727b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9737b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9747b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9757b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 97640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (d->getAttr<FastCallAttr>()) { 9777b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 9787b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "stdcall" << "fastcall"; 9797b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9807b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9817b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 98240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) StdCallAttr()); 9836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 985803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFastCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9867b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 987545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9917b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9927b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 9937b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9945dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9957b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9967b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9977b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9987b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 99940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis if (d->getAttr<StdCallAttr>()) { 10007b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 10017b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "fastcall" << "stdcall"; 10027b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 10037b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 10047b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 100540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) FastCallAttr()); 10066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1008803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1010545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 10113c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 10126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 101540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoThrowAttr()); 10166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1018232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1019232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1020232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 10213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1022232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1023232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1024232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 102540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) ConstAttr()); 1026232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1027232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1028232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1029232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1030232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 10313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1032232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1033232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1034232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 103540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) PureAttr()); 1036232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1037232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1038f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 103989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // Match gcc which ignores cleanup attrs when compiling C++. 104089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson if (S.getLangOptions().CPlusPlus) 104189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 104289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 1043f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!Attr.getParameterName()) { 1044f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1045f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1046f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1047f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1048f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1049f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1050f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1051f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1052f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1053f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1054f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1055f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1056f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1057f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1058f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1059f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1060f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 106147b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor NamedDecl *CleanupDecl = S.LookupName(S.TUScope, Attr.getParameterName(), 106247b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor Sema::LookupOrdinaryName); 1063f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 106489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1065f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1066f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1067f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1068f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1069f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1070f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 107189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1072f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1073f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1074f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1075f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1076f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 107789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1078f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1079f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1080f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1081f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 108289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 108389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 108489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 108589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1086d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 108789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), 108889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 108989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 109089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 109189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 109289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 109340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CleanupAttr(FD)); 1094f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1095f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 10965b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian/// Handle __attribute__((format_arg((idx)))) attribute 10975b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian/// based on http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 10985b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanianstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10995b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 11005b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11015b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 11025b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 11035b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 11045b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11055b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 11065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 11075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 11085b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: in C++ the implicit 'this' function parameter also counts. 11095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // this is needed in order to be compatible with GCC 11105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // the index must start with 1. 11115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned NumArgs = getFunctionOrMethodNumArgs(d); 11125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 11135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 11145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 11155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 11165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 11175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 11195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 11205b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 11215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 11225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 11235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 11245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 11255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 11265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 11275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 11285b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 11295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 11305b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 11315b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 11325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 11335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 11345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 11355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 11365b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 11375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !Ty->getAsPointerType()->getPointeeType()->isCharType())) { 11385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 11395b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 11405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << (not_nsstring_type ? "a string type" : "an NSString") 11415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 11425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 11435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 11445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 11455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 11465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 11475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 11485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !Ty->getAsPointerType()->getPointeeType()->isCharType())) { 11495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 11505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 11515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << (not_nsstring_type ? "string type" : "NSString") 11525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 11535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 11545b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 11555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 115640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) FormatArgAttr(Idx.getZExtValue())); 11575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 11585b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 11596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// Handle __attribute__((format(type,idx,firstarg))) attributes 11606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// based on http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1161803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 11626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1163545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1164fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 11653c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 11666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1169545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 11703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 11716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1174620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1175fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 11765dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 11776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: in C++ the implicit 'this' function parameter also counts. 11816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // this is needed in order to be compatible with GCC 11826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the index must start in 1 and the limit is numargs+1 11833568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 11846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 11856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1186545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner const char *Format = Attr.getParameterName()->getName(); 1187545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner unsigned FormatLen = Attr.getParameterName()->getLength(); 11886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 11906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FormatLen > 4 && Format[0] == '_' && Format[1] == '_' && 11916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format[FormatLen - 2] == '_' && Format[FormatLen - 1] == '_') { 11926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format += 2; 11936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner FormatLen -= 4; 11946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool Supported = false; 11976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_NSString = false; 11986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_strftime = false; 1199085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar bool is_CFString = false; 12006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner switch (FormatLen) { 12026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner default: break; 1203803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 5: Supported = !memcmp(Format, "scanf", 5); break; 1204803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 6: Supported = !memcmp(Format, "printf", 6); break; 1205803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 7: Supported = !memcmp(Format, "strfmon", 7); break; 12066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner case 8: 1207085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar Supported = (is_strftime = !memcmp(Format, "strftime", 8)) || 1208085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_NSString = !memcmp(Format, "NSString", 8)) || 1209085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_CFString = !memcmp(Format, "CFString", 8)); 12106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner break; 12116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!Supported) { 1214fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1215fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "format" << Attr.getParameterName()->getName(); 12166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1220545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1221803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1222803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1223fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 12243c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 12256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1229fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 12303c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 12316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 12356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 12366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 12383568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 12396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1240085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (is_CFString) { 1241085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1242fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1243fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1244085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1245085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 1246085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } else if (is_NSString) { 1247390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1248390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1249803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1250390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1251fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1252fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 12536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 12566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner !Ty->getAsPointerType()->getPointeeType()->isCharType()) { 1257390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1258fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1259fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 12606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1264545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1265803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1266803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1267fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 12683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 12696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 12736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 12743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 12756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 12766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1277803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 12786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 12833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 12846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (is_strftime) { 12856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1286fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1287fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 12886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 12916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1292fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 12933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 12946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 129740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) FormatAttr(std::string(Format, FormatLen), 12986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Idx.getZExtValue(), FirstArg.getZExtValue())); 12996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13010b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 13020b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 13036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1304545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 13053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 13066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13090c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 13100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1311bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 13120c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 13130c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 13140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 13150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 13160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 13170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1318fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13195dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 13206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13230c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 13240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), 13250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 13260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 13270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 13280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 13290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl::field_iterator Field = RD->field_begin(S.Context), 13300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldEnd = RD->field_end(S.Context); 13310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 13320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 13330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 13340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1335bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 13360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 13370c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 13380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (FirstType->isFloatingType() || FirstType->isVectorType()) { 13390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(FirstField->getLocation(), 13400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_floating); 13410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 13420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1343bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 13440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 13450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 13460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 13470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 13480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 13490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 13500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 13510c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 13520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 13530c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 13540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Field->getLocation(), 13550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 13560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 13570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 13580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(FirstField->getLocation(), 13590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 13600c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1361bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1362bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1363bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 13646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 136540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr()); 13666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13680b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1370545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 13713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1374545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *argExpr = static_cast<Expr *>(Attr.getArg(0)); 13756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(argExpr); 13766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 13786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 13796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 13800b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 13816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 138340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AnnotateAttr(std::string(SE->getStrData(), 13840b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner SE->getByteLength()))); 13856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1387803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAlignedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1389545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 13903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned Align = 0; 1395545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 13966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 13977549c5589ac0d2087e55f2bdd4854adef23f29fdDaniel Dunbar // (For now we just use 128 bits which is the maximum on X86). 13986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Align = 128; 139940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlignedAttr(Align)); 14006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 140249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner 140349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner Expr *alignmentExpr = static_cast<Expr *>(Attr.getArg(0)); 140449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 1405803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!alignmentExpr->isIntegerConstantExpr(Alignment, S.Context)) { 1406fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1407fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "aligned" << alignmentExpr->getSourceRange(); 140849e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 140949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1410396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 1411396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_aligned_not_power_of_two) 1412396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar << alignmentExpr->getSourceRange(); 1413396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1414396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1415396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 141640b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) AlignedAttr(Alignment.getZExtValue() * 8)); 14176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1418fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 14190b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner/// HandleModeAttr - This attribute modifies the width of a decl with 1420065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// primitive type. 1421fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1422fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// Despite what would be logical, the mode attribute is a decl attribute, 1423fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// not a type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 1424fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 'G' be HImode, not an intermediate pointer. 1425fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 14260b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1427fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1428fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1429fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1430fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1431fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 14323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1433fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1434fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1435fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1436fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1437fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 14380b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1439fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1440fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1441fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner const char *Str = Name->getName(); 1442fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned Len = Name->getLength(); 1443fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1444fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1445fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Len > 4 && Str[0] == '_' && Str[1] == '_' && 1446fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str[Len - 2] == '_' && Str[Len - 1] == '_') { 1447fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str += 2; 1448fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Len -= 4; 1449fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1450fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1451fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1452fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 145373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1454fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (Len) { 1455fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 145673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 145773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 145873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 145973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 146073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 146173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 146273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 146373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 146473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 146573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 146673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 146773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 146873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 146973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 147073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 147173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1472fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1473fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1474fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1475fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1476fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "word", 4)) 14770b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1478fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "byte", 4)) 14790b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1480fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1481fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1482fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "pointer", 7)) 14830b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1484fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1485fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1486fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1487fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1488fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1489fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1490fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1491fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1492fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1493fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1494fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1495fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1496fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 149773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 149873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->getAsBuiltinType() && !OldTy->isComplexType()) 149973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 150073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 150173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isIntegralType()) 150273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 150373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 150473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 150573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 150673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 150773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 150873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 150973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 151073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1511390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1512390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1513390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1514390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1515f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1516f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1517fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1518fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1519fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 15203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1521fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1522fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 15233c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1524fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1525fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 152673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 152773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 152873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 152973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1530fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 15310b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1532fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15330b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1534fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1535fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 153673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 153773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 153873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 153973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1540fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 15410b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1542fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15430b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1544fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1545fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1546fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 15470b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1548fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 15490b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1550fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15510b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1552fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1553fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1554fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 15550b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1556fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 15570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.LongLongTy; 1558fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 15590b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedLongLongTy; 1560fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 156173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 156273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 156373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1564f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1565f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1566f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1567f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1568f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1569f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman NewTy = S.Context.getFixedWidthIntType(128, OldTy->isSignedIntegerType()); 157073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1571fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1572fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 157373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 157473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1575fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1576fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1577fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1578fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1579fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner TD->setUnderlyingType(NewTy); 1580fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1581fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1582fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 15830744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1584d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlssonstatic void HandleNodebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1585d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1586d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1587d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1588d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1589d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1590e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 15915bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1592d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15935dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1594d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1595d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1596d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 159740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NodebugAttr()); 1598d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1599d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 16005bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlssonstatic void HandleNoinlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16015bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 16025bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 16035bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 16045bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 16055bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 16065bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 1607c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 16085bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16095dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 16105bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 16115bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 16125bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 161340b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NoinlineAttr()); 16145bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 16155bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 1616cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 161726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 161826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 161926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 162026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 162126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 162226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1623c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1624c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 162526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16265dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 162726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 162826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 162926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1630c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!Fn->isInline()) { 1631cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1632c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1633c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1634c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner 163540b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) GNUInlineAttr()); 163626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 163726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1638ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1639ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 1640ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 164155d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1642ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1643ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 164455d3aaf9a537888734762170823daf750ea9036dEli Friedman 1645ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 1646ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16475dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1648ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1649ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 165055d3aaf9a537888734762170823daf750ea9036dEli Friedman 165155d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 165255d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 165355d3aaf9a537888734762170823daf750ea9036dEli Friedman if (!NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 165455d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 165555d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 165655d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 165755d3aaf9a537888734762170823daf750ea9036dEli Friedman } 165855d3aaf9a537888734762170823daf750ea9036dEli Friedman 1659264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 1660264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 166155d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 166255d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 166355d3aaf9a537888734762170823daf750ea9036dEli Friedman } 166455d3aaf9a537888734762170823daf750ea9036dEli Friedman 1665348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 1666264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 1667264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 166855d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 166955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 167055d3aaf9a537888734762170823daf750ea9036dEli Friedman 167140b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) RegparmAttr(NumParams.getZExtValue())); 1672ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 1673ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 16740744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 1675b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 1676b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 1677b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1678b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 1679b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 1680b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 16815dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 16825dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek 16835dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 16845dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 16855dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 16865dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 16875dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 16885dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16895dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 3 /* function or method */; 1690b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1691b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 1692b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 16935dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAsPointerType())) { 16945dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_ns_attribute_wrong_return_type) 16955dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName(); 16965dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek return; 16975dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 16985dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek 1699b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 1700b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 1701b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 1702b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1703b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 170440b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) CFReturnsRetainedAttr()); 1705b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1706b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 170740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis d->addAttr(::new (S.Context) NSReturnsRetainedAttr()); 1708b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1709b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 1710b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 1711b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1712b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 17130744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 17140744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 17150744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1716a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 1717803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 1718803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// silently ignore it. 17199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorstatic void ProcessDeclAttribute(Scope *scope, Decl *D, const AttributeList &Attr, Sema &S) { 1720290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman if (Attr.isDeclspecAttribute()) 1721290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman // FIXME: Try to deal with __declspec attributes! 1722290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman return; 1723803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 17243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_IBOutlet: HandleIBOutletAttr (D, Attr, S); break; 1725803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 1726ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 1727ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian // Ignore these, these are type attributes, handled by ProcessTypeAttributes. 1728803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1729803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 17303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 1731af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar case AttributeList::AT_always_inline: 1732af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 1733b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 1734b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek HandleAnalyzerNoReturnAttr (D, Attr, S); break; 17353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 17363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_constructor: HandleConstructorAttr(D, Attr, S); break; 1737803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_deprecated: HandleDeprecatedAttr(D, Attr, S); break; 17383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_destructor: HandleDestructorAttr(D, Attr, S); break; 1739803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_dllexport: HandleDLLExportAttr (D, Attr, S); break; 17403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_dllimport: HandleDLLImportAttr (D, Attr, S); break; 17413068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 17429cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 17433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 1744803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_fastcall: HandleFastCallAttr (D, Attr, S); break; 1745803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 17465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 1747cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner case AttributeList::AT_gnu_inline: HandleGNUInlineAttr(D, Attr, S); break; 17483068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 1749eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 17503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 17513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 1752b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1753b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 1754b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 1755b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 1756b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 1757b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 17586f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 17596f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 17606f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 17613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 176217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 17633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_stdcall: HandleStdCallAttr (D, Attr, S); break; 1764bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian case AttributeList::AT_unavailable: HandleUnavailableAttr(D, Attr, S); break; 176573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 1766b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 17673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_vector_size: HandleVectorSizeAttr(D, Attr, S); break; 17683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_visibility: HandleVisibilityAttr(D, Attr, S); break; 1769026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 1770026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 17713068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 17726e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar case AttributeList::AT_weak_import: HandleWeakImportAttr(D, Attr, S); break; 1773803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 1774803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 1775803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 17760db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 17770db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 17780db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 1779f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 1780fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 17819eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 1782770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 1783232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 1784232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 1785f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 1786d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson case AttributeList::AT_nodebug: HandleNodebugAttr (D, Attr, S); break; 17875bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson case AttributeList::AT_noinline: HandleNoinlineAttr (D, Attr, S); break; 178855d3aaf9a537888734762170823daf750ea9036dEli Friedman case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 178905f8e471aae971c9867dbac148eba1275a570814Anders Carlsson case AttributeList::IgnoredAttribute: 17905e204486a7dd1e5f7e14e941a2c7e707a8ad1a3bChris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 179105f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 179205f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 1793803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 1794d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1795803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1796803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1797803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1798803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1799803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 1800803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 18019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, const AttributeList *AttrList) { 1802803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner while (AttrList) { 18039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttribute(S, D, *AttrList, *this); 1804803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner AttrList = AttrList->getNext(); 1805803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1806803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1807803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 18080744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 18090744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 18100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 18119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregorvoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD) { 18120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 18130744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 18149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 1815803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 18160744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 18170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 18180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 18190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 18200744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 18210744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 18229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 18230744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 18240744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 18250744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 18269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor ProcessDeclAttributeList(S, D, Attrs); 18270744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 1828