SemaDeclAttr.cpp revision 0db29ece81d360dcefbe912339c34abe5917f6a9
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 27d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbarstatic const FunctionType *getFunctionType(Decl *d) { 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(); 40d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 41d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return Ty->getAsFunctionType(); 426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 443568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 453568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 463568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 47d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// isFunctionOrMethod - Return true if the given decl has function 48d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 49d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 503568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethod(Decl *d) { 51d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return getFunctionType(d) || isa<ObjCMethodDecl>(d); 52d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 54d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 55d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 56d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// isFunctionOrMethod. 57d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbarstatic bool hasFunctionProto(Decl *d) { 58d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 59d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return isa<FunctionTypeProto>(FnTy); 60d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } else { 61d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar assert(isa<ObjCMethodDecl>(d)); 62d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 63d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 643568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 653568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 66d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 67d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 68d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 693568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic unsigned getFunctionOrMethodNumArgs(Decl *d) { 70d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 71d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar const FunctionTypeProto *proto = cast<FunctionTypeProto>(FnTy); 723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->getNumArgs(); 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } else { 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->getNumParams(); 753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 763568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 773568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 783568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic QualType getFunctionOrMethodArgType(Decl *d, unsigned Idx) { 79d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 80d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar const FunctionTypeProto *proto = cast<FunctionTypeProto>(FnTy); 813568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->getArgType(Idx); 823568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } else { 833568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->getParamDecl(Idx)->getType(); 843568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 853568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 863568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 873568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethodVariadic(Decl *d) { 88d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 89d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar const FunctionTypeProto *proto = cast<FunctionTypeProto>(FnTy); 903568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 913568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } else { 923568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 933568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 943568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 953568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 97b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const PointerType *PT = T->getAsPointerType(); 98b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 1006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 101b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const ObjCInterfaceType *ClsT =PT->getPointeeType()->getAsObjCInterfaceType(); 1026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!ClsT) 1036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 1046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner IdentifierInfo* ClsName = ClsT->getDecl()->getIdentifier(); 1066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 112085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 113085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const PointerType *PT = T->getAsPointerType(); 114085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 115085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 116085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 117085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordType *RT = PT->getPointeeType()->getAsRecordType(); 118085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 119085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 120085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 121085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 122085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (RD->getTagKind() != TagDecl::TK_struct) 123085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 124085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 125085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 126085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 127085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 128e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 129e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 130e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 131e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 136803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleExtVectorTypeAttr(Decl *d, const AttributeList &Attr, 137803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner Sema &S) { 138545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 139545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 140803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 141545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 146545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 150545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 152803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 153fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 154fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "ext_vector_type" << sizeExpr->getSourceRange(); 1556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // unlike gcc's vector_size attribute, we do not allow vectors to be defined 1586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // in conjunction with complex types (pointers, arrays, functions, etc.). 159b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!curType->isIntegerType() && !curType->isRealFloatingType()) { 160d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << curType; 1616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // unlike gcc's vector_size attribute, the size is specified as the 1646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // number of elements, not the number of bytes. 1656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 1666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 168fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 169fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 1706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Instantiate/Install the vector type, the number of elements is > 0. 173803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner tDecl->setUnderlyingType(S.Context.getExtVectorType(curType, vectorSize)); 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Remember this typedef decl, we will need it later for diagnostics. 175803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.ExtVectorDecls.push_back(tDecl); 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 178065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 179065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// HandleVectorSizeAttribute - this attribute is only applicable to 180065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// integral and float scalars, although arrays, pointers, and function 181065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// return values are allowed in conjunction with this construct. Aggregates 182065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// with this attribute are invalid, even if they are of the same size as a 183065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// corresponding scalar. 184065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// The raw attribute should contain precisely 1 argument, the vector size 185065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// for the variable, measured in bytes. If curType and rawAttr are well 186065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// formed, this routine will return a new vector type. 187803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVectorSizeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 188065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner QualType CurType; 189065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 190065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = VD->getType(); 191065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 192065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = TD->getUnderlyingType(); 193065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else { 194fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 195fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << SourceRange(Attr.getLoc(), Attr.getLoc()); 196065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 197065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner } 198065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 199065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Check the attribute arugments. 200545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 2013c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 202065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 204545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 2056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 206803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 207fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 208fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << sizeExpr->getSourceRange(); 209065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // navigate to the base type - we need to provide for vector pointers, 2126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vector arrays, and functions returning vectors. 213b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (CurType->isPointerType() || CurType->isArrayType() || 214b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner CurType->isFunctionType()) { 2156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner assert(0 && "HandleVector(): Complex type construction unimplemented"); 2166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner /* FIXME: rebuild the type from the inside out, vectorizing the inner type. 2176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner do { 2186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (PointerType *PT = dyn_cast<PointerType>(canonType)) 2196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = PT->getPointeeType().getTypePtr(); 2206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (ArrayType *AT = dyn_cast<ArrayType>(canonType)) 2216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = AT->getElementType().getTypePtr(); 2226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FunctionType *FT = dyn_cast<FunctionType>(canonType)) 2236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = FT->getResultType().getTypePtr(); 2246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } while (canonType->isPointerType() || canonType->isArrayType() || 2256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType->isFunctionType()); 2266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner */ 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the base type must be integer or float. 229b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 230d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 231065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 233803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 2346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vecSize is specified in bytes - convert to bits. 2356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 2366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the vector size needs to be an integral multiple of the type size. 2386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize % typeSize) { 239fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 240fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 241065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 244fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 245fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 246065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 248065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 249065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Success! Instantiate the vector type, the number of elements is > 0, and 250065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // not required to be a power of 2, unlike GCC. 251803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize); 252065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 253065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 254065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner VD->setType(CurType); 255065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else 256065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner cast<TypedefDecl>(D)->setUnderlyingType(CurType); 2576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 259803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 261545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2623c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 2673b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar TD->addAttr(new PackedAttr(1)); 2686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 272803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 273fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 27408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 2763b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FD->addAttr(new PackedAttr(1)); 2776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2783c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenekstatic void HandleIBOutletAttr(Decl *d, const AttributeList &Attr, Sema &S) { 28296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 28396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2843c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 28596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 28696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 28796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 28896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // The IBOutlet attribute only applies to instance variables of Objective-C 28996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // classes. 29096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (ObjCIvarDecl *ID = dyn_cast<ObjCIvarDecl>(d)) 29196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek ID->addAttr(new IBOutletAttr()); 29296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek else 29396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet_non_ivar); 29496329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 29596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 296eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 297eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // GCC ignores the nonnull attribute on K&R style function 298eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // prototypes, so we ignore it as well 299d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 300fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 301026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "nonnull" << 0 /*function*/; 302eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 303eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 304eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 305d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 306eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 307eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 308eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 309eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 310eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 311eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 312eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 313eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 314eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 315f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 316eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 317eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (!Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 318fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 319fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 320eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 321eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 322eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 325eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 326fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 32730bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 328eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 329eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 330465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek 331465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 332eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 333eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 33446bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, x); 33546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (!T->isPointerType() && !T->isBlockPointerType()) { 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 337fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_nonnull_pointers_only) 338fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3397fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 340eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 341eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 342eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 344eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 3457fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // If no arguments were specified to __attribute__((nonnull)) then all 3467fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // pointer arguments have a nonnull attribute. 3477fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 34846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 34946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 35046bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (T->isPointerType() || T->isBlockPointerType()) 351d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 35246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 3537fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3547fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3557fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3567fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3577fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 358eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3597fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3607fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3617fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 3627fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek std::sort(start, start + size); 3637fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek d->addAttr(new NonNullAttr(start, size)); 364eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 365eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 366803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 3676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 368545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3693c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 373545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 3746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 3756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 3766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 378fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 3806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *Alias = Str->getStrData(); 3846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned AliasLen = Str->getByteLength(); 3856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 3876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new AliasAttr(std::string(Alias, AliasLen))); 3896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 3906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 391af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbarstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 392af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 393af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 394af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 3953c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 396af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 397af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 398af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 399af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar d->addAttr(new AlwaysInlineAttr()); 400af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 401af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 402803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 404545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 4053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 4066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 408d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 409d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d)) { 410fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 411026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "noreturn" << 0 /*function*/; 4126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 4146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 4156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new NoReturnAttr()); 4166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 41873798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 41973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 42073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 4213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 42273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 42373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 42473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 425d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isa<VarDecl>(d) && !isFunctionOrMethod(d)) { 426fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 427026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "unused" << 2 /*variable and function*/; 42873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 42973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 43073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 43173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek d->addAttr(new UnusedAttr()); 43273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 43373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 434b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 435b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 436b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 437b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 438b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 439b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 440b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 441b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 442186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 443b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 444b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 445b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 446b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 447b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 448026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "used" << 2 /*variable and function*/; 449b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 450b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 451b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 452b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar d->addAttr(new UsedAttr()); 453b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 454b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 4553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 4573068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 458fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 459fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 4603068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 4643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 4653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 4663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 4673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 468fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 4693c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 4703068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4713068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 4733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 4763068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!Fn) { 477fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 478026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "constructor" << 0 /*function*/; 4793068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar d->addAttr(new ConstructorAttr(priority)); 4833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 4843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4863068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 4873068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 488fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 489fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 4903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 4943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 4953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 4963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 4973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 498fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 4993c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 5003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5056782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 506fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 507026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "destructor" << 0 /*function*/; 5083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar d->addAttr(new DestructorAttr(priority)); 5123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 514803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 516545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 5173c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 5186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new DeprecatedAttr()); 5226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 524bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 525bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 526bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 527bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 528bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 529bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 530bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 531bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian d->addAttr(new UnavailableAttr()); 532bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 533bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 534803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 536545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 5373c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 5386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 541545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 5426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 5436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 5446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 546fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 5473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 5486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *TypeStr = Str->getStrData(); 5526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned TypeLen = Str->getByteLength(); 5536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 5546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TypeLen == 7 && !memcmp(TypeStr, "default", 7)) 5566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 5576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 6 && !memcmp(TypeStr, "hidden", 6)) 5586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 5596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 8 && !memcmp(TypeStr, "internal", 8)) 5606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 5616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 9 && !memcmp(TypeStr, "protected", 9)) 5626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 5636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 56408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 5656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new VisibilityAttr(type)); 5696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5710db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCGCAttr(Decl *D, const AttributeList &Attr, Sema &S) { 5726e14a8f2ac4af8e3741eac8e9dccec0061bc7166Anders Carlsson if (!Attr.getParameterName()) { 573fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 5743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "objc_gc" << 1; 575aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson return; 576aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson } 577aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson 578aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson if (Attr.getNumArgs() != 0) { 5793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 580aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson return; 581aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson } 5820db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 583aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson ObjCGCAttr::GCAttrTypes type; 58492e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("weak")) { 5850db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (isa<FieldDecl>(D) && !isa<ObjCIvarDecl>(D)) 5862682d8b3a0415d521d5ca11afb13a8bc5c559a31Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_weak_on_field); 587aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson type = ObjCGCAttr::Weak; 5882682d8b3a0415d521d5ca11afb13a8bc5c559a31Fariborz Jahanian } 58992e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner else if (Attr.getParameterName()->isStr("strong")) 590aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson type = ObjCGCAttr::Strong; 591aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson else { 592fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 5933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "objc_gc" << Attr.getParameterName(); 594aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson return; 595aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson } 596aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson 5970db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner D->addAttr(new ObjCGCAttr(type)); 598aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson} 599aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson 6000db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 6010db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 6020db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 6030db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 6040db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6050db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 6060db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6070db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 6080db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 6090db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 6100db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 6110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 6120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner D->addAttr(new ObjCExceptionAttr()); 6140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 6150db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 6160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 617fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 618fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 619fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 620fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6210db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 622fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 623fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 624fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian !T->getAsPointerType()->getPointeeType()->isRecordType()) { 625fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 626fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 627fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 628fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6290db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner D->addAttr(new ObjCNSObjectAttr); 630fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 631fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 632f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregorstatic void 633f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 634f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 635f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 636f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 637f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 638f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 639f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 640f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 641f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 642f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 643f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 644f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor D->addAttr(new OverloadableAttr); 645f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 646f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 6479eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6489eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (!Attr.getParameterName()) { 649fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 6519eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6529eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6539eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6549eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 6553c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6569eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6579eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6589eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6599eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 66092e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 6619eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 6629eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 663fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 6643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 6659eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6669eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6679eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6689eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff d->addAttr(new BlocksAttr(type)); 6699eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 6709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 671770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 672770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 673770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 674fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 675fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 676770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 677770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 678770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 679770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 680770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 681770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 682770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 683770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 684fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 6853c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 686770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 687770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 688770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 689770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 690770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 691fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 692fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 693770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 694770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 695770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 696770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 697770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 698770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 699770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 700770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 701770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 702fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 7033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 704770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 705770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 706770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 707770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 708770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 709770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 710770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 711fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 712fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 713770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 714770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 715770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 716770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 717770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 718770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson QualType FT = FD->getType(); 719770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!FT->getAsFunctionTypeProto()->isVariadic()) { 720770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic); 721770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 722770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 723770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 724770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 725770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic); 726770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 727770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 728770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 729fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 730026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "sentinel" << 3 /*function or method*/; 731770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 732770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 733770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 734770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: Actually create the attribute. 735770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 736770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 737026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 738026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 739026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 740026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 741026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 742026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 743026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 744026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // TODO: could also be applied to methods? 745026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 746026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (!Fn) { 747026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 748026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "warn_unused_result" << 0 /*function*/; 749026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 750026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 751026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 752026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner Fn->addAttr(new WarnUnusedResultAttr()); 753026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 754026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 755026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 757545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 7583c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 762026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner D->addAttr(new WeakAttr()); 7636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 765026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 767545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 7683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7717b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 7722f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 773026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 774026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner D->addAttr(new DLLImportAttr()); 7752f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 7762f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 7772f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 778026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 7792f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 7802f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 781026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "dllimport" << 2 /*variable and function*/; 7822f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 7832f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 7842f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 7852f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllimport attribute is ignored for inlined functions. 7862f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 7872f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 7882f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 7892f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 7902f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 7912f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 7922f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // The attribute is also overridden by a subsequent declaration as dllexport. 7932f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 7942f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov for (AttributeList *nextAttr = Attr.getNext(); nextAttr; 7952f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov nextAttr = nextAttr->getNext()) { 7962f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (nextAttr->getKind() == AttributeList::AT_dllexport) { 7972f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 7982f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 7992f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8002f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8012f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 802026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (D->getAttr<DLLExportAttr>()) { 8032f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8042f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8052f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8062f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 807026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner D->addAttr(new DLLImportAttr()); 8086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 810026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLExportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 812545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8133c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8167b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8172f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 818026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 819026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner D->addAttr(new DLLExportAttr()); 8202f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8212f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8222f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 823026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 8242f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 8252f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 826026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "dllexport" << 2 /*variable and function*/; 8272f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8282f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8292f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8302f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllexport attribute is ignored for inlined functions, 8312f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // unless the -fkeep-inline-functions flag has been used. Warning is emitted; 8322f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 8332f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // FIXME: ... unless the -fkeep-inline-functions flag has been used. 8342f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllexport"; 8352f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8362f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8372f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 838026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner D->addAttr(new DLLExportAttr()); 8396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 841026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 84217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 84317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 84417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 84517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 84617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 84717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 84817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 84917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 85017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar StringLiteral *SE = 85117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar dyn_cast<StringLiteral>(static_cast<Expr *>(Attr.getArg(0))); 85217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 85317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // FIXME 85417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 85517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 85617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 857026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner D->addAttr(new SectionAttr(std::string(SE->getStrData(), 85817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar SE->getByteLength()))); 85917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 86017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 861803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleStdCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8627b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 863545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8677b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8687b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute can be applied only to functions. 8697b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 8707b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 871026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "stdcall" << 0 /*function*/; 8727b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 8737b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 8747b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8757b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 8767b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (d->getAttr<FastCallAttr>()) { 8777b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 8787b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "stdcall" << "fastcall"; 8797b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 8807b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 8817b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new StdCallAttr()); 8836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 885803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFastCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8867b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 887545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8917b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8927b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 8937b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 894026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "fastcall" << 0 /*function*/; 8957b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 8967b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 8977b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8987b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 8997b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (d->getAttr<StdCallAttr>()) { 9007b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 9017b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "fastcall" << "stdcall"; 9027b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9037b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9047b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new FastCallAttr()); 9066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 908803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 910545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9113c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new NoThrowAttr()); 9166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 918232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 919232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 920232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 922232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 923232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 924232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 925232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson d->addAttr(new ConstAttr()); 926232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 927232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 928232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 929232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 930232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 932232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 933232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 934232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 935232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson d->addAttr(new PureAttr()); 936232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 937232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 938f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 93989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // Match gcc which ignores cleanup attrs when compiling C++. 94089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson if (S.getLangOptions().CPlusPlus) 94189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 94289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 943f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!Attr.getParameterName()) { 944f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 945f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 946f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 947f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 948f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 949f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 950f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 951f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 952f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 953f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 954f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 955f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 956f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 957f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 958f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 959f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 960f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 96147b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor NamedDecl *CleanupDecl = S.LookupName(S.TUScope, Attr.getParameterName(), 96247b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor Sema::LookupOrdinaryName); 963f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 96489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 965f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 966f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 967f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 968f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 969f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 970f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 97189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 972f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 973f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 974f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 975f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 976f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 97789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 978f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 979f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 980f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 981f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 98289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 98389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 98489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 98589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 98689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson if (Ty != ParamTy) { 98789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), 98889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 98989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 99089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 99189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 99289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 993f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson d->addAttr(new CleanupAttr(FD)); 994f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 995f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 9966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// Handle __attribute__((format(type,idx,firstarg))) attributes 9976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// based on http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 998803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1000545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1001fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 10023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 10036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1006545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 10073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 10086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1011d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 1012fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1013026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "format" << 0 /*function*/; 10146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: in C++ the implicit 'this' function parameter also counts. 10186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // this is needed in order to be compatible with GCC 10196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the index must start in 1 and the limit is numargs+1 10203568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 10216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 10226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1023545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner const char *Format = Attr.getParameterName()->getName(); 1024545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner unsigned FormatLen = Attr.getParameterName()->getLength(); 10256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 10276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FormatLen > 4 && Format[0] == '_' && Format[1] == '_' && 10286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format[FormatLen - 2] == '_' && Format[FormatLen - 1] == '_') { 10296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format += 2; 10306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner FormatLen -= 4; 10316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool Supported = false; 10346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_NSString = false; 10356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_strftime = false; 1036085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar bool is_CFString = false; 10376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner switch (FormatLen) { 10396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner default: break; 1040803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 5: Supported = !memcmp(Format, "scanf", 5); break; 1041803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 6: Supported = !memcmp(Format, "printf", 6); break; 1042803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 7: Supported = !memcmp(Format, "strfmon", 7); break; 10436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner case 8: 1044085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar Supported = (is_strftime = !memcmp(Format, "strftime", 8)) || 1045085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_NSString = !memcmp(Format, "NSString", 8)) || 1046085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_CFString = !memcmp(Format, "CFString", 8)); 10476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner break; 10486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!Supported) { 1051fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1052fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "format" << Attr.getParameterName()->getName(); 10536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1057545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1058803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1059803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1060fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 10626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1066fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 10673c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 10686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 10726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 10736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 10753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 10766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1077085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (is_CFString) { 1078085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1079fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1080fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1081085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1082085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 1083085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } else if (is_NSString) { 10846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: do we need to check if the type is NSString*? What are 10856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the semantics? 1086803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 10876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should highlight the actual expression that has the 10886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // wrong type. 1089fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1090fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 10916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 10946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner !Ty->getAsPointerType()->getPointeeType()->isCharType()) { 10956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should highlight the actual expression that has the 10966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // wrong type. 1097fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1098fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 10996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1103545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1104803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1105803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1106fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 11086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 11126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 11133568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 11146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 11156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1116803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 11176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 11223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 11236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (is_strftime) { 11246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1125fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1126fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 11276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 11306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1131fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 11323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 11336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new FormatAttr(std::string(Format, FormatLen), 11376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Idx.getZExtValue(), FirstArg.getZExtValue())); 11386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11400b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 11410b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 11426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1143545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 11443c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1148bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: This shouldn't be restricted to typedefs 1149bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 1150bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman if (!TD || !TD->getUnderlyingType()->isUnionType()) { 1151fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1152026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "transparent_union" << 1 /*union*/; 11536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1156bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman RecordDecl* RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 1157bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 1158bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: Should we do a check for RD->isDefinition()? 1159bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 1160bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: This isn't supposed to be restricted to pointers, but otherwise 1161bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // we might silently generate incorrect code; see following code 116244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RD->field_begin(), 116344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RD->field_end(); 116444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 116544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor if (!Field->getType()->isPointerType()) { 1166bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman S.Diag(Attr.getLoc(), diag::warn_transparent_union_nonpointer); 1167bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1168bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1169bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 11706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1171bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: This is a complete hack; we should be properly propagating 1172bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // transparent_union through Sema. That said, this is close enough to 1173bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // correctly compile all the common cases of transparent_union without 1174bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // errors or warnings 1175bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman QualType NewTy = S.Context.VoidPtrTy; 1176bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman NewTy.addConst(); 1177bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TD->setUnderlyingType(NewTy); 11786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11800b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 11816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1182545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 11833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1186545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *argExpr = static_cast<Expr *>(Attr.getArg(0)); 11876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(argExpr); 11886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 11906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 11916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 11920b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 11936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner d->addAttr(new AnnotateAttr(std::string(SE->getStrData(), 11966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner SE->getByteLength()))); 11976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1199803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAlignedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1201545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 12023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned Align = 0; 1207545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 12086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 12096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // (For now we just use 128 bits which is the maximum on X86. 12106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Align = 128; 12116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 121349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner 121449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner Expr *alignmentExpr = static_cast<Expr *>(Attr.getArg(0)); 121549e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 1216803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!alignmentExpr->isIntegerConstantExpr(Alignment, S.Context)) { 1217fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1218fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "aligned" << alignmentExpr->getSourceRange(); 121949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 122049e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 122149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner d->addAttr(new AlignedAttr(Alignment.getZExtValue() * 8)); 12226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1223fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 12240b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner/// HandleModeAttr - This attribute modifies the width of a decl with 1225065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// primitive type. 1226fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1227fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// Despite what would be logical, the mode attribute is a decl attribute, 1228fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// not a type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 1229fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 'G' be HImode, not an intermediate pointer. 1230fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 12310b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1232fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1233fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1234fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1235fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1236fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 12373c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1238fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1239fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1240fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1241fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1242fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 12430b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1244fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1245fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1246fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner const char *Str = Name->getName(); 1247fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned Len = Name->getLength(); 1248fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1249fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1250fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Len > 4 && Str[0] == '_' && Str[1] == '_' && 1251fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str[Len - 2] == '_' && Str[Len - 1] == '_') { 1252fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str += 2; 1253fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Len -= 4; 1254fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1255fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1256fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1257fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 1258fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (Len) { 1259fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 1260fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "QI", 2)) { DestWidth = 8; break; } 1261fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "HI", 2)) { DestWidth = 16; break; } 1262fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "SI", 2)) { DestWidth = 32; break; } 1263fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "DI", 2)) { DestWidth = 64; break; } 1264fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "TI", 2)) { DestWidth = 128; break; } 1265fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "SF", 2)) { DestWidth = 32; IntegerMode = false; break; } 1266fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "DF", 2)) { DestWidth = 64; IntegerMode = false; break; } 1267fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "XF", 2)) { DestWidth = 96; IntegerMode = false; break; } 1268fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "TF", 2)) { DestWidth = 128; IntegerMode = false; break; } 1269fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1270fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1271fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1272fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1273fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "word", 4)) 12740b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1275fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "byte", 4)) 12760b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1277fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1278fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1279fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "pointer", 7)) 12800b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1281fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1282fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1283fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1284fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1285fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1286fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1287fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1288fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1289fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1290fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1291fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1292fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1293fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1294fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1295f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Sync this with InitializePredefinedMacros; we need to match 1296f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // int8_t and friends, at least with glibc. 1297f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure 32/64-bit integers don't get defined to types of 1298f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the wrong width on unusual platforms. 1299f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1300f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1301fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1302fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1303fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 13043c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1305fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1306fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 13073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1308fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1309fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 1310fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner assert(IntegerMode); 1311fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 13120b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1313fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13140b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1315fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1316fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 1317fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner assert(IntegerMode); 1318fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 13190b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1320fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13210b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1322fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1323fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1324fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 13250b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1326fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 13270b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1328fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13290b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1330fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1331fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1332fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 13330b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1334fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 13350b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.LongLongTy; 1336fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13370b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedLongLongTy; 1338fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1339f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1340f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1341f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1342f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1343f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1344f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman NewTy = S.Context.getFixedWidthIntType(128, OldTy->isSignedIntegerType()); 1345fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1346fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1347fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!OldTy->getAsBuiltinType()) 13480b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 1349fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (!(IntegerMode && OldTy->isIntegerType()) && 1350fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner !(!IntegerMode && OldTy->isFloatingType())) { 13510b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 1352fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1353fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1354fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1355fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1356fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner TD->setUnderlyingType(NewTy); 1357fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1358fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1359fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 13600744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1361d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlssonstatic void HandleNodebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1362d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1363d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1364d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1365d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1366d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1367e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 1368e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson if (!isa<FunctionDecl>(d)) { 1369d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1370026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "nodebug" << 0 /*function*/; 1371d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1372d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1373d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 1374d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson d->addAttr(new NodebugAttr()); 1375d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1376d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 13770744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 13780744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 13790744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 13800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1381a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 1382803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 1383803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// silently ignore it. 1384803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void ProcessDeclAttribute(Decl *D, const AttributeList &Attr, Sema &S) { 1385803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 13863068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_IBOutlet: HandleIBOutletAttr (D, Attr, S); break; 1387803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 1388803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner // Ignore this, this is a type attribute, handled by ProcessTypeAttributes. 1389803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1390803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 13913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 1392af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar case AttributeList::AT_always_inline: 1393af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 13943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 13953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_constructor: HandleConstructorAttr(D, Attr, S); break; 1396803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_deprecated: HandleDeprecatedAttr(D, Attr, S); break; 13973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_destructor: HandleDestructorAttr(D, Attr, S); break; 1398803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_dllexport: HandleDLLExportAttr (D, Attr, S); break; 13993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_dllimport: HandleDLLImportAttr (D, Attr, S); break; 14003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 14013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar HandleExtVectorTypeAttr(D, Attr, S); 14023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 1403803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_fastcall: HandleFastCallAttr (D, Attr, S); break; 1404803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 14053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 1406eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 14073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 14083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 14093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 141017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 14113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_stdcall: HandleStdCallAttr (D, Attr, S); break; 1412bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian case AttributeList::AT_unavailable: HandleUnavailableAttr(D, Attr, S); break; 141373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 1414b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 14153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_vector_size: HandleVectorSizeAttr(D, Attr, S); break; 14163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_visibility: HandleVisibilityAttr(D, Attr, S); break; 1417026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 1418026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 14193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 1420803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 1421803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 1422803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1423aa0d25b44e510a5a62e7345f4fa3840a886841d2Anders Carlsson case AttributeList::AT_objc_gc: HandleObjCGCAttr (D, Attr, S); break; 14240db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 14250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 14260db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 1427f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 1428fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 14299eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 1430770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 1431232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 1432232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 1433f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 1434d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson case AttributeList::AT_nodebug: HandleNodebugAttr (D, Attr, S); break; 143505f8e471aae971c9867dbac148eba1275a570814Anders Carlsson case AttributeList::IgnoredAttribute: 143605f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 143705f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 1438803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 1439d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1440803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1441803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1442803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1443803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1444803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 1445803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 1446803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnervoid Sema::ProcessDeclAttributeList(Decl *D, const AttributeList *AttrList) { 1447803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner while (AttrList) { 1448803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner ProcessDeclAttribute(D, *AttrList, *this); 1449803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner AttrList = AttrList->getNext(); 1450803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1451803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1452803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1453803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 14540744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 14550744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 14560744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 14570744e5f3325e2d2107506002e43c37ea0155a5acChris Lattnervoid Sema::ProcessDeclAttributes(Decl *D, const Declarator &PD) { 14580744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 14590744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 14600744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 1461803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 14620744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 14630744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 14640744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 14650744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 14660744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 14670744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 14680744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 14690744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 14700744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 14710744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 14720744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 14730744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 14740744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1475