SemaDeclAttr.cpp revision 755f9d2c65f75d539a2440e5de82d881e4417397
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 } 67620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return false; 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 { 77d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar assert(isa<ObjCMethodDecl>(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(); 8889951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 903568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 913568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic QualType getFunctionOrMethodArgType(Decl *d, unsigned Idx) { 9289951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 9372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 9489951a86b594513c2a013532ed45d197413b1087Chris Lattner 95620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 9689951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 973568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 983568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 993568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethodVariadic(Decl *d) { 100d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 10172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1023568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 1033568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } else { 1043568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1053568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1063568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1073568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 1086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 109b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const PointerType *PT = T->getAsPointerType(); 110b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 1126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 113b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const ObjCInterfaceType *ClsT =PT->getPointeeType()->getAsObjCInterfaceType(); 1146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!ClsT) 1156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 1166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner IdentifierInfo* ClsName = ClsT->getDecl()->getIdentifier(); 1186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 124085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 125085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const PointerType *PT = T->getAsPointerType(); 126085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 127085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 128085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 129085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordType *RT = PT->getPointeeType()->getAsRecordType(); 130085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 131085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 132085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 133085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 134085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (RD->getTagKind() != TagDecl::TK_struct) 135085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 136085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 137085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 138085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 139085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 140e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 141e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 142e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 143e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1453068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 148803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleExtVectorTypeAttr(Decl *d, const AttributeList &Attr, 149803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner Sema &S) { 150545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 151545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 152803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 153545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 158545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 162545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 164803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 165fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 166fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "ext_vector_type" << sizeExpr->getSourceRange(); 1676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // unlike gcc's vector_size attribute, we do not allow vectors to be defined 1706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // in conjunction with complex types (pointers, arrays, functions, etc.). 171b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!curType->isIntegerType() && !curType->isRealFloatingType()) { 172d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << curType; 1736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // unlike gcc's vector_size attribute, the size is specified as the 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // number of elements, not the number of bytes. 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 180fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 181fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 1826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Instantiate/Install the vector type, the number of elements is > 0. 185803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner tDecl->setUnderlyingType(S.Context.getExtVectorType(curType, vectorSize)); 1866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Remember this typedef decl, we will need it later for diagnostics. 187803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.ExtVectorDecls.push_back(tDecl); 1886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 190065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 191065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// HandleVectorSizeAttribute - this attribute is only applicable to 192065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// integral and float scalars, although arrays, pointers, and function 193065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// return values are allowed in conjunction with this construct. Aggregates 194065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// with this attribute are invalid, even if they are of the same size as a 195065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// corresponding scalar. 196065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// The raw attribute should contain precisely 1 argument, the vector size 197065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// for the variable, measured in bytes. If curType and rawAttr are well 198065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// formed, this routine will return a new vector type. 199803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVectorSizeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 200065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner QualType CurType; 201065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 202065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = VD->getType(); 203065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 204065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = TD->getUnderlyingType(); 205065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else { 206fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 207fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << SourceRange(Attr.getLoc(), Attr.getLoc()); 208065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 209065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner } 210065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 211065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Check the attribute arugments. 212545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 2133c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 214065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 216545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 2176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 218803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 219fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 220fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << sizeExpr->getSourceRange(); 221065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // navigate to the base type - we need to provide for vector pointers, 2246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vector arrays, and functions returning vectors. 225b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (CurType->isPointerType() || CurType->isArrayType() || 226b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner CurType->isFunctionType()) { 2272db15bdd945163eacfa4623fd2e32a536ed2dd3bChris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_vector_size) << CurType; 2282db15bdd945163eacfa4623fd2e32a536ed2dd3bChris Lattner return; 2296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner /* FIXME: rebuild the type from the inside out, vectorizing the inner type. 2306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner do { 2316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (PointerType *PT = dyn_cast<PointerType>(canonType)) 2326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = PT->getPointeeType().getTypePtr(); 2336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (ArrayType *AT = dyn_cast<ArrayType>(canonType)) 2346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = AT->getElementType().getTypePtr(); 2356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FunctionType *FT = dyn_cast<FunctionType>(canonType)) 2366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = FT->getResultType().getTypePtr(); 2376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } while (canonType->isPointerType() || canonType->isArrayType() || 2386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType->isFunctionType()); 2396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner */ 2406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24182afa2d97d39cc0d5a4897716ec0a80aeab9e14bChris Lattner // the base type must be integer or float, and can't already be a vector. 24282afa2d97d39cc0d5a4897716ec0a80aeab9e14bChris Lattner if (CurType->isVectorType() || 24382afa2d97d39cc0d5a4897716ec0a80aeab9e14bChris Lattner (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 244d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 245065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 247803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 2486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vecSize is specified in bytes - convert to bits. 2496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 2506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the vector size needs to be an integral multiple of the type size. 2526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize % typeSize) { 253fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 254fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 255065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 258fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 259fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 260065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 262065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 263065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Success! Instantiate the vector type, the number of elements is > 0, and 264065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // not required to be a power of 2, unlike GCC. 265803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize); 266065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 267065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 268065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner VD->setType(CurType); 269065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else 270065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner cast<TypedefDecl>(D)->setUnderlyingType(CurType); 2716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 273803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 275545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2763c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 2810b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner TD->addAttr(::new (S.Context) PackedAttr(1)); 2826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 286803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 287fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 28808631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 2900b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner FD->addAttr(::new (S.Context) PackedAttr(1)); 2916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2923c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenekstatic void HandleIBOutletAttr(Decl *d, const AttributeList &Attr, Sema &S) { 29696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 29796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2983c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 29996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 30096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 30196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 30296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // The IBOutlet attribute only applies to instance variables of Objective-C 30396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // classes. 304327426076e1acc8217307cb236269ccf08c18fe6Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) 3050b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) IBOutletAttr()); 30696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek else 307327426076e1acc8217307cb236269ccf08c18fe6Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet); 30896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 30996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 310eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 311eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // GCC ignores the nonnull attribute on K&R style function 312eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // prototypes, so we ignore it as well 313d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 314fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3155dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 316eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 317eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 318eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 319d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 320eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 321eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 322eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 325eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 326eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 328eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 329f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 330eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 331eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (!Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 332fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 333fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 334eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 335eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 338eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 339eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 340fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 34130bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 342eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 344465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek 345465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 346eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 347eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 34846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, x); 34946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (!T->isPointerType() && !T->isBlockPointerType()) { 350eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 351fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_nonnull_pointers_only) 352fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3537fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 354eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 355eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 356eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 357eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 358eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 3597fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // If no arguments were specified to __attribute__((nonnull)) then all 3607fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // pointer arguments have a nonnull attribute. 3617fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 36246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 36346bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 36446bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (T->isPointerType() || T->isBlockPointerType()) 365d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 36646bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 3677fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3687fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3697fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3707fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3717fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 372eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3737fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3747fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3757fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 3767fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek std::sort(start, start + size); 3770b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NonNullAttr(start, size)); 378eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 379eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 380803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 3816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 382545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 387545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 3886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 3896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 3906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 392fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 3946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *Alias = Str->getStrData(); 3986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned AliasLen = Str->getByteLength(); 3996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 4006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 4016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 4020b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AliasAttr(std::string(Alias, AliasLen))); 4036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 405af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbarstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 406af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 407af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 408af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 4093c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 410af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 411af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 4125bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 413c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 4145bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4155dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 4165bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 4175bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 418af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 4190b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AlwaysInlineAttr()); 420af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 421af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 422b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic bool HandleCommonNoReturnAttr(Decl *d, const AttributeList &Attr, 4235dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek Sema &S) { 4246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 425545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 4263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 427b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return false; 4286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 429d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 43019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 43119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 43219c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (VD == 0 || !VD->getType()->isBlockPointerType()) { 43319c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4345dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 43519c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump return false; 43619c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 4376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 4386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 439b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek return true; 440b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 441b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 442b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4435dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (HandleCommonNoReturnAttr(d, Attr, S)) 444b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek d->addAttr(::new (S.Context) NoReturnAttr()); 445b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek} 446b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek 447b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 448b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek Sema &S) { 4495dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (HandleCommonNoReturnAttr(d, Attr, S)) 450b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr()); 4516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 45373798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 45473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 45573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 4563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 45773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 45873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 45973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 460d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isa<VarDecl>(d) && !isFunctionOrMethod(d)) { 461fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4625dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 46373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 46473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 46573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 4660b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) UnusedAttr()); 46773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 46873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 469b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 470b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 471b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 472b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 473b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 474b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 475b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 476b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 477186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 478b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 479b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 480b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 481b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 482b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 4835dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 484b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 485b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 486b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 4870b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) UsedAttr()); 488b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 489b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 4903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 4923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 493fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 494fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 4953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 4993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 5003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 5013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 5023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 503fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5043c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 5053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 510c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 511fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5125dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 5133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5160b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) ConstructorAttr(priority)); 5173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5183068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 5213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 522fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 523fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 5243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 5283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 5293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 5303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 5313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 532fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5333c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 5343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5396782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 540fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 5415dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 5423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5450b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) DestructorAttr(priority)); 5463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 548803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 550545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 5513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 5526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5550b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) DeprecatedAttr()); 5566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 558bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 559bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 560bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 561bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 562bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 563bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 564bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 5650b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) UnavailableAttr()); 566bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 567bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 568803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 570545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 5713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 5726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 575545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 5766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 5776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 5786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 580fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 5813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 5826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *TypeStr = Str->getStrData(); 5866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned TypeLen = Str->getByteLength(); 5876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 5886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TypeLen == 7 && !memcmp(TypeStr, "default", 7)) 5906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 5916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 6 && !memcmp(TypeStr, "hidden", 6)) 5926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 5936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 8 && !memcmp(TypeStr, "internal", 8)) 5946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 5956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 9 && !memcmp(TypeStr, "protected", 9)) 5966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 5976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 59808631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 5996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 6016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 6020b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) VisibilityAttr(type)); 6036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 6050db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 6060db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 6070db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 6080db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 6090db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6100db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 6110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 6130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 6140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 6150db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 6170db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6180b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) ObjCExceptionAttr()); 6190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 6200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6210db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 622fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 623fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 624fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 625fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 627fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 628fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 629fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian !T->getAsPointerType()->getPointeeType()->isRecordType()) { 630fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 631fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 632fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 633fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6340b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) ObjCNSObjectAttr()); 635fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 636fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 637f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregorstatic void 638f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 639f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 640f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 641f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 642f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 643f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 644f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 645f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 646f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 647f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 648f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 6490b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) OverloadableAttr()); 650f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 651f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 6529eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6539eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (!Attr.getParameterName()) { 654fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6553c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 6569eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6579eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6589eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6599eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 6603c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6619eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6629eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6639eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6649eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 66592e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 6669eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 6679eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 668fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 6693c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 6709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6719eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6730b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) BlocksAttr(type)); 6749eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 6759eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 676770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 677770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 678770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 679fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 680fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 681770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 682770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 683770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 684770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 685770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 686770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 687770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 688770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 689fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 6903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 691770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 692770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 693770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 694770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 695770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 696fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 697fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 698770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 699770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 700770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 701770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 702770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 703770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 704770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 705770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 706770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 707fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 7083c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 709770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 710770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 711770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 712770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 713770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 714770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 715770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 716fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 717fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 718770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 719770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 720770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 721770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 722770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 723897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner const FunctionType *FT = FD->getType()->getAsFunctionType(); 724897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 725897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner 726897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 727897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 728897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 729897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 730897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner 731897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 7323bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 733770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 734770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 735770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 736770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 7373bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 738770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 7392f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 7402f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 7412f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian // Note! BlockDecl is typeless. Variadic diagnostics 7422f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian // will be issued by the caller. 7432f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 7442f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 7452f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 746daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 747daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 748daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian : Ty->getAsBlockPointerType()->getPointeeType()->getAsFunctionType(); 7492f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 7503bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 7513bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 7522f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 7532f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 7542f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 7552f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian else { 7562f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 757ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 7582f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 7592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 760770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 761fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 762ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 763770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 764770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 76588f1ba0f0439e31ab57ffc088aa91137cadee585Fariborz Jahanian d->addAttr(::new (S.Context) SentinelAttr(sentinel, nullPos)); 766770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 767770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 768026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 769026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 770026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 771026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 772026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 773026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 774026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 775026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // TODO: could also be applied to methods? 776026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 777026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (!Fn) { 778026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7795dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 780026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 781026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 782026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 7830b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner Fn->addAttr(::new (S.Context) WarnUnusedResultAttr()); 784026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 785026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 786026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 788545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 7893c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7926e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 7936e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 7946e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 7956e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7965dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 7976e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 7986e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 7996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 8000b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) WeakAttr()); 8016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 8036e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8046e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 8056e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 8066e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8076e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8086e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8096e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8106e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 8116e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 8126e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 8136e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 8146e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 8157297134f128423fce2e88f92421ed135bded7d4eDouglas Gregor isDef = FD->getBody(S.Context); 816d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 817d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 8181c90f4dc686ab872013544664c797604a309c563Mike Stump return; 8196e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else { 8206e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8215dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8226e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8236e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8246e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8256e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 8266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 8276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), 8286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 8296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 8306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 8316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 8326e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 8336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar D->addAttr(::new (S.Context) WeakImportAttr()); 8346e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 8356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 836026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 838545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8427b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8432f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 844026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 8450b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLImportAttr()); 8462f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8472f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8482f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 849026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 8502f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 8512f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8525dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8532f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8542f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8552f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8562f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllimport attribute is ignored for inlined functions. 8572f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 8582f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 8592f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8602f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8612f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8622f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8632f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // The attribute is also overridden by a subsequent declaration as dllexport. 8642f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 8652f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov for (AttributeList *nextAttr = Attr.getNext(); nextAttr; 8662f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov nextAttr = nextAttr->getNext()) { 8672f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (nextAttr->getKind() == AttributeList::AT_dllexport) { 8682f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8692f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8702f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8712f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8722f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 873026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (D->getAttr<DLLExportAttr>()) { 8742f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8752f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8762f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8772f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8780b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLImportAttr()); 8796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 881026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLExportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 883545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8843c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8877b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8882f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 889026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 8900b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLExportAttr()); 8912f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8922f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8932f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 894026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 8952f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 8962f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 8975dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 8982f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8992f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 9002f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 9012f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllexport attribute is ignored for inlined functions, 9022f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // unless the -fkeep-inline-functions flag has been used. Warning is emitted; 9032f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 9042f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // FIXME: ... unless the -fkeep-inline-functions flag has been used. 9052f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllexport"; 9062f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 9072f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 9082f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 9090b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLExportAttr()); 9106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 912026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 91317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 91417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 91517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 91617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 91717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 91817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 91917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 92017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 92117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar StringLiteral *SE = 92217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar dyn_cast<StringLiteral>(static_cast<Expr *>(Attr.getArg(0))); 92317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 92417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // FIXME 92517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 92617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 92717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 9280b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) SectionAttr(std::string(SE->getStrData(), 9290b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner SE->getByteLength()))); 93017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 93117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 932803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleStdCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9337b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 934545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9387b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9397b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute can be applied only to functions. 9407b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 9417b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9425dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9437b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9447b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9457b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9467b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 9477b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (d->getAttr<FastCallAttr>()) { 9487b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 9497b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "stdcall" << "fastcall"; 9507b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9517b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9527b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9530b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) StdCallAttr()); 9546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 956803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFastCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9577b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 958545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9627b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9637b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 9647b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9655dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9667b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9677b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9687b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9697b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 9707b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (d->getAttr<StdCallAttr>()) { 9717b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 9727b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "fastcall" << "stdcall"; 9737b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9747b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9757b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9760b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) FastCallAttr()); 9776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 979803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 981545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9860b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NoThrowAttr()); 9876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 989232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 990232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 991232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9923c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 993232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 994232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 995232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 9960b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) ConstAttr()); 997232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 998232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 999232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1000232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1001232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 10023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1003232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1004232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1005232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 10060b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) PureAttr()); 1007232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1008232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1009f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 101089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // Match gcc which ignores cleanup attrs when compiling C++. 101189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson if (S.getLangOptions().CPlusPlus) 101289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 101389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 1014f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!Attr.getParameterName()) { 1015f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1016f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1017f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1018f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1019f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1020f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1021f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1022f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1023f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1024f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1025f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1026f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1027f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1028f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1029f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1030f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1031f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 103247b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor NamedDecl *CleanupDecl = S.LookupName(S.TUScope, Attr.getParameterName(), 103347b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor Sema::LookupOrdinaryName); 1034f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 103589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 1036f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1037f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1038f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1039f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1040f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1041f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 104289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 1043f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1044f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1045f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1046f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1047f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 104889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 1049f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1050f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1051f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1052f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 105389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 105489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 105589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 105689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1057d5e3e8ec50d6ea481b3bc841dcbe853175d05122Eli Friedman if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 105889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), 105989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 106089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 106189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 106289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 106389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 10640b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) CleanupAttr(FD)); 1065f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1066f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 10676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// Handle __attribute__((format(type,idx,firstarg))) attributes 10686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// based on http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1069803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1071545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1072fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 10733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 10746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1077545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 10783c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 10796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1082620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1083fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 10845dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 10856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: in C++ the implicit 'this' function parameter also counts. 10896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // this is needed in order to be compatible with GCC 10906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the index must start in 1 and the limit is numargs+1 10913568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 10926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 10936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1094545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner const char *Format = Attr.getParameterName()->getName(); 1095545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner unsigned FormatLen = Attr.getParameterName()->getLength(); 10966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 10986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FormatLen > 4 && Format[0] == '_' && Format[1] == '_' && 10996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format[FormatLen - 2] == '_' && Format[FormatLen - 1] == '_') { 11006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format += 2; 11016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner FormatLen -= 4; 11026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool Supported = false; 11056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_NSString = false; 11066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_strftime = false; 1107085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar bool is_CFString = false; 11086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner switch (FormatLen) { 11106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner default: break; 1111803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 5: Supported = !memcmp(Format, "scanf", 5); break; 1112803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 6: Supported = !memcmp(Format, "printf", 6); break; 1113803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 7: Supported = !memcmp(Format, "strfmon", 7); break; 11146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner case 8: 1115085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar Supported = (is_strftime = !memcmp(Format, "strftime", 8)) || 1116085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_NSString = !memcmp(Format, "NSString", 8)) || 1117085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_CFString = !memcmp(Format, "CFString", 8)); 11186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner break; 11196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!Supported) { 1122fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1123fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "format" << Attr.getParameterName()->getName(); 11246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1128545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1129803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1130803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1131fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 11336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1137fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 11383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 11396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 11436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 11446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 11463568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 11476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1148085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (is_CFString) { 1149085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1150fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1151fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1152085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1153085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 1154085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } else if (is_NSString) { 1155390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1156390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1157803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1158390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1159fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1160fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 11616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 11646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner !Ty->getAsPointerType()->getPointeeType()->isCharType()) { 1165390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1166fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1167fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 11686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1172545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1173803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1174803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1175fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11763c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 11776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 11816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 11823568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 11836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 11846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1185803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 11866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 11913c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 11926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (is_strftime) { 11936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1194fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1195fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 11966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 11996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1200fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 12013c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 12026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12050b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) FormatAttr(std::string(Format, FormatLen), 12066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Idx.getZExtValue(), FirstArg.getZExtValue())); 12076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12090b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 12100b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 12116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1212545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12133c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 12180c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1219bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 12200c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 12210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 12220c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 12230c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 12240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 12250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1226fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 12275dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 12286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 12320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), 12330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 12340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 12350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 12360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 12370c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl::field_iterator Field = RD->field_begin(S.Context), 12380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldEnd = RD->field_end(S.Context); 12390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 12400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 12410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 12420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1243bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 12440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 12450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 12460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (FirstType->isFloatingType() || FirstType->isVectorType()) { 12470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(FirstField->getLocation(), 12480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_floating); 12490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 12500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1251bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 12520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 12530c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 12540c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 12550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 12560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 12570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 12580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 12590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 12600c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 12610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 12620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Field->getLocation(), 12630c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 12640c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 12650c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 12660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(FirstField->getLocation(), 12670c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 12680c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1269bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1270bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1271bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 12726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD->addAttr(::new (S.Context) TransparentUnionAttr()); 12746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12760b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1278545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 12793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1282545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *argExpr = static_cast<Expr *>(Attr.getArg(0)); 12836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(argExpr); 12846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 12866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 12876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 12880b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 12896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12910b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AnnotateAttr(std::string(SE->getStrData(), 12920b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner SE->getByteLength()))); 12936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1295803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAlignedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1297545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 12983c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned Align = 0; 1303545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 13046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 13057549c5589ac0d2087e55f2bdd4854adef23f29fdDaniel Dunbar // (For now we just use 128 bits which is the maximum on X86). 13066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Align = 128; 13070b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AlignedAttr(Align)); 13086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 131049e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner 131149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner Expr *alignmentExpr = static_cast<Expr *>(Attr.getArg(0)); 131249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 1313803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!alignmentExpr->isIntegerConstantExpr(Alignment, S.Context)) { 1314fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1315fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "aligned" << alignmentExpr->getSourceRange(); 131649e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 131749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1318396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 1319396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_aligned_not_power_of_two) 1320396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar << alignmentExpr->getSourceRange(); 1321396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1322396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1323396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 13240b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AlignedAttr(Alignment.getZExtValue() * 8)); 13256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1326fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 13270b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner/// HandleModeAttr - This attribute modifies the width of a decl with 1328065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// primitive type. 1329fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1330fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// Despite what would be logical, the mode attribute is a decl attribute, 1331fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// not a type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 1332fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 'G' be HImode, not an intermediate pointer. 1333fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 13340b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1335fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1336fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1337fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1338fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1339fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 13403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1341fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1342fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1343fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1344fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1345fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 13460b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1347fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1348fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1349fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner const char *Str = Name->getName(); 1350fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned Len = Name->getLength(); 1351fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1352fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1353fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Len > 4 && Str[0] == '_' && Str[1] == '_' && 1354fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str[Len - 2] == '_' && Str[Len - 1] == '_') { 1355fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str += 2; 1356fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Len -= 4; 1357fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1358fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1359fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1360fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 136173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1362fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (Len) { 1363fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 136473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 136573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 136673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 136773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 136873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 136973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 137073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 137173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 137273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 137373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 137473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 137573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 137673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 137773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 137873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 137973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1380fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1381fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1382fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1383fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1384fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "word", 4)) 13850b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1386fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "byte", 4)) 13870b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1388fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1389fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1390fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "pointer", 7)) 13910b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1392fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1393fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1394fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1395fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1396fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1397fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1398fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1399fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1400fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1401fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1402fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1403fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1404fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 140573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 140673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->getAsBuiltinType() && !OldTy->isComplexType()) 140773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 140873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 140973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isIntegralType()) 141073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 141173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 141273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 141373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 141473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 141573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 141673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 141773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 141873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1419390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 1420390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 1421390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 1422390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 1423f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1424f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1425fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1426fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1427fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 14283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1429fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1430fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 14313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1432fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1433fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 143473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 143573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 143673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 143773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1438fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 14390b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1440fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 14410b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1442fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1443fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 144473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 144573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 144673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 144773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1448fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 14490b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1450fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 14510b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1452fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1453fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1454fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 14550b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1456fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 14570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1458fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 14590b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1460fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1461fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1462fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 14630b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1464fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 14650b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.LongLongTy; 1466fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 14670b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedLongLongTy; 1468fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 146973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 147073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 147173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1472f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1473f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1474f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1475f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1476f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1477f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman NewTy = S.Context.getFixedWidthIntType(128, OldTy->isSignedIntegerType()); 147873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1479fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1480fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 148173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 148273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1483fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1484fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1485fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1486fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1487fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner TD->setUnderlyingType(NewTy); 1488fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1489fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1490fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 14910744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1492d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlssonstatic void HandleNodebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1493d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1494d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1495d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1496d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1497d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1498e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 14995bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1500d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15015dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1502d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1503d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1504d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 15050b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NodebugAttr()); 1506d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1507d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 15085bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlssonstatic void HandleNoinlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 15095bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 15105bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 15115bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 15125bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 15135bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 15145bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 1515c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 15165bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15175dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 15185bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 15195bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 15205bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 15210b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NoinlineAttr()); 15225bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 15235bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 1524cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 152526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 152626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 152726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 152826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 152926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 153026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1531c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 1532c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 153326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15345dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 153526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 153626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 153726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1538c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!Fn->isInline()) { 1539cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 1540c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 1541c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 1542c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner 15439f9bf258f8ebae30bfb70feb9d797d6eb67b0460Douglas Gregor d->addAttr(::new (S.Context) GNUInlineAttr()); 154426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 154526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 1546ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1547ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 1548ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 154955d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1550ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1551ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 155255d3aaf9a537888734762170823daf750ea9036dEli Friedman 1553ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 1554ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15555dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1556ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1557ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 155855d3aaf9a537888734762170823daf750ea9036dEli Friedman 155955d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 156055d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 156155d3aaf9a537888734762170823daf750ea9036dEli Friedman if (!NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 156255d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 156355d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 156455d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 156555d3aaf9a537888734762170823daf750ea9036dEli Friedman } 156655d3aaf9a537888734762170823daf750ea9036dEli Friedman 1567264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov if (S.Context.Target.getRegParmMax() == 0) { 1568264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 156955d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 157055d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 157155d3aaf9a537888734762170823daf750ea9036dEli Friedman } 157255d3aaf9a537888734762170823daf750ea9036dEli Friedman 1573348f28ab6a574df6501ff8b76f9fc6753c155badAnton Korobeynikov if (NumParams.getLimitedValue(255) > S.Context.Target.getRegParmMax()) { 1574264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 1575264a76cdf382c507f4d43e64c89f1503f003ac95Anton Korobeynikov << S.Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 157655d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 157755d3aaf9a537888734762170823daf750ea9036dEli Friedman } 157855d3aaf9a537888734762170823daf750ea9036dEli Friedman 157955d3aaf9a537888734762170823daf750ea9036dEli Friedman d->addAttr(::new (S.Context) RegparmAttr(NumParams.getZExtValue())); 1580ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 1581ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 15820744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 1583b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 1584b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 1585b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1586b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 1587b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 1588b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 15895dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 15905dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek 15915dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 15925dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 15935dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 15945dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 15955dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 15965dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 15975dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 3 /* function or method */; 1598b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1599b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 1600b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 16015dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAsPointerType())) { 16025dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_ns_attribute_wrong_return_type) 16035dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName(); 16045dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek return; 16055dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 16065dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek 1607b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 1608b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 1609b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 1610b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1611b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 1612b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek d->addAttr(::new (S.Context) CFReturnsRetainedAttr()); 1613b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1614b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 1615b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek d->addAttr(::new (S.Context) NSReturnsRetainedAttr()); 1616b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 1617b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 1618b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 1619b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1620b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 16210744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 16220744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 16230744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1624a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 1625803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 1626803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// silently ignore it. 1627803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void ProcessDeclAttribute(Decl *D, const AttributeList &Attr, Sema &S) { 1628803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 16293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_IBOutlet: HandleIBOutletAttr (D, Attr, S); break; 1630803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 1631ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 1632ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian // Ignore these, these are type attributes, handled by ProcessTypeAttributes. 1633803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1634803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 16353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 1636af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar case AttributeList::AT_always_inline: 1637af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 1638b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 1639b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek HandleAnalyzerNoReturnAttr (D, Attr, S); break; 16403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 16413068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_constructor: HandleConstructorAttr(D, Attr, S); break; 1642803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_deprecated: HandleDeprecatedAttr(D, Attr, S); break; 16433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_destructor: HandleDestructorAttr(D, Attr, S); break; 1644803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_dllexport: HandleDLLExportAttr (D, Attr, S); break; 16453068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_dllimport: HandleDLLImportAttr (D, Attr, S); break; 16463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 16473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar HandleExtVectorTypeAttr(D, Attr, S); 16483068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 1649803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_fastcall: HandleFastCallAttr (D, Attr, S); break; 1650803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 1651cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner case AttributeList::AT_gnu_inline: HandleGNUInlineAttr(D, Attr, S); break; 16523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 1653eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 16543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 16553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 1656b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 1657b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 1658b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 1659b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 1660b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 1661b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 16623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 166317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 16643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_stdcall: HandleStdCallAttr (D, Attr, S); break; 1665bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian case AttributeList::AT_unavailable: HandleUnavailableAttr(D, Attr, S); break; 166673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 1667b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 16683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_vector_size: HandleVectorSizeAttr(D, Attr, S); break; 16693068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_visibility: HandleVisibilityAttr(D, Attr, S); break; 1670026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 1671026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 16723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 16736e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar case AttributeList::AT_weak_import: HandleWeakImportAttr(D, Attr, S); break; 1674803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 1675803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 1676803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 16770db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 16780db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 16790db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 1680f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 1681fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 16829eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 1683770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 1684232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 1685232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 1686f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 1687d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson case AttributeList::AT_nodebug: HandleNodebugAttr (D, Attr, S); break; 16885bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson case AttributeList::AT_noinline: HandleNoinlineAttr (D, Attr, S); break; 168955d3aaf9a537888734762170823daf750ea9036dEli Friedman case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 169005f8e471aae971c9867dbac148eba1275a570814Anders Carlsson case AttributeList::IgnoredAttribute: 16915e204486a7dd1e5f7e14e941a2c7e707a8ad1a3bChris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 169205f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 169305f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 1694803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 1695d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1696803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1697803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1698803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1699803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1700803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 1701803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 1702803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnervoid Sema::ProcessDeclAttributeList(Decl *D, const AttributeList *AttrList) { 1703803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner while (AttrList) { 1704803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner ProcessDeclAttribute(D, *AttrList, *this); 1705803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner AttrList = AttrList->getNext(); 1706803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1707803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1708803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 17090744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 17100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 17110744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 17120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattnervoid Sema::ProcessDeclAttributes(Decl *D, const Declarator &PD) { 17130744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 17140744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 17150744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 1716803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 17170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 17180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 17190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 17200744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 17210744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 17220744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 17230744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 17240744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 17250744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 17260744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 17270744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 17280744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 1729