Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1 | //===--- SemaDeclAttr.cpp - Declaration Attribute Handling ----------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements decl-related attribute processing. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
John McCall | 2d88708 | 2010-08-25 22:03:47 +0000 | [diff] [blame] | 14 | #include "clang/Sema/SemaInternal.h" |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 15 | #include "TargetAttributesSema.h" |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 16 | #include "clang/AST/ASTContext.h" |
John McCall | 384aff8 | 2010-08-25 07:42:41 +0000 | [diff] [blame] | 17 | #include "clang/AST/DeclCXX.h" |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 18 | #include "clang/AST/DeclTemplate.h" |
Daniel Dunbar | acc5f3e | 2008-08-11 06:23:49 +0000 | [diff] [blame] | 19 | #include "clang/AST/DeclObjC.h" |
| 20 | #include "clang/AST/Expr.h" |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 21 | #include "clang/Basic/SourceManager.h" |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 22 | #include "clang/Basic/TargetInfo.h" |
John McCall | 1951085 | 2010-08-20 18:27:03 +0000 | [diff] [blame] | 23 | #include "clang/Sema/DeclSpec.h" |
John McCall | 9c3087b | 2010-08-26 02:13:20 +0000 | [diff] [blame] | 24 | #include "clang/Sema/DelayedDiagnostic.h" |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 25 | #include "clang/Sema/Lookup.h" |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 26 | #include "llvm/ADT/StringExtras.h" |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 27 | using namespace clang; |
John McCall | 9c3087b | 2010-08-26 02:13:20 +0000 | [diff] [blame] | 28 | using namespace sema; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 29 | |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 30 | /// These constants match the enumerated choices of |
| 31 | /// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 32 | enum AttributeDeclKind { |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 33 | ExpectedFunction, |
| 34 | ExpectedUnion, |
| 35 | ExpectedVariableOrFunction, |
| 36 | ExpectedFunctionOrMethod, |
| 37 | ExpectedParameter, |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 38 | ExpectedFunctionMethodOrBlock, |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 39 | ExpectedFunctionMethodOrParameter, |
| 40 | ExpectedClass, |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 41 | ExpectedVariable, |
| 42 | ExpectedMethod, |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 43 | ExpectedVariableFunctionOrLabel, |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 44 | ExpectedFieldOrGlobalVar, |
| 45 | ExpectedStruct |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 46 | }; |
| 47 | |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 48 | //===----------------------------------------------------------------------===// |
| 49 | // Helper functions |
| 50 | //===----------------------------------------------------------------------===// |
| 51 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 52 | static const FunctionType *getFunctionType(const Decl *D, |
Ted Kremenek | a18d7d8 | 2009-08-14 20:49:40 +0000 | [diff] [blame] | 53 | bool blocksToo = true) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 54 | QualType Ty; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 55 | if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 56 | Ty = decl->getType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 57 | else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 58 | Ty = decl->getType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 59 | else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 60 | Ty = decl->getUnderlyingType(); |
| 61 | else |
| 62 | return 0; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 63 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 64 | if (Ty->isFunctionPointerType()) |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 65 | Ty = Ty->getAs<PointerType>()->getPointeeType(); |
Fariborz Jahanian | 755f9d2 | 2009-05-18 17:39:25 +0000 | [diff] [blame] | 66 | else if (blocksToo && Ty->isBlockPointerType()) |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 67 | Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 68 | |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 69 | return Ty->getAs<FunctionType>(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 70 | } |
| 71 | |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 72 | // FIXME: We should provide an abstraction around a method or function |
| 73 | // to provide the following bits of information. |
| 74 | |
Nuno Lopes | d20254f | 2009-12-20 23:11:08 +0000 | [diff] [blame] | 75 | /// isFunction - Return true if the given decl has function |
Ted Kremenek | a18d7d8 | 2009-08-14 20:49:40 +0000 | [diff] [blame] | 76 | /// type (function or function-typed variable). |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 77 | static bool isFunction(const Decl *D) { |
| 78 | return getFunctionType(D, false) != NULL; |
Ted Kremenek | a18d7d8 | 2009-08-14 20:49:40 +0000 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | /// isFunctionOrMethod - Return true if the given decl has function |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 82 | /// type (function or function-typed variable) or an Objective-C |
| 83 | /// method. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 84 | static bool isFunctionOrMethod(const Decl *D) { |
| 85 | return isFunction(D)|| isa<ObjCMethodDecl>(D); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 86 | } |
| 87 | |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 88 | /// isFunctionOrMethodOrBlock - Return true if the given decl has function |
| 89 | /// type (function or function-typed variable) or an Objective-C |
| 90 | /// method or a block. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 91 | static bool isFunctionOrMethodOrBlock(const Decl *D) { |
| 92 | if (isFunctionOrMethod(D)) |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 93 | return true; |
| 94 | // check for block is more involved. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 95 | if (const VarDecl *V = dyn_cast<VarDecl>(D)) { |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 96 | QualType Ty = V->getType(); |
| 97 | return Ty->isBlockPointerType(); |
| 98 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 99 | return isa<BlockDecl>(D); |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 100 | } |
| 101 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 102 | /// Return true if the given decl has a declarator that should have |
| 103 | /// been processed by Sema::GetTypeForDeclarator. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 104 | static bool hasDeclarator(const Decl *D) { |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 105 | // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 106 | return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || |
| 107 | isa<ObjCPropertyDecl>(D); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 108 | } |
| 109 | |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 110 | /// hasFunctionProto - Return true if the given decl has a argument |
| 111 | /// information. This decl should have already passed |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 112 | /// isFunctionOrMethod or isFunctionOrMethodOrBlock. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 113 | static bool hasFunctionProto(const Decl *D) { |
| 114 | if (const FunctionType *FnTy = getFunctionType(D)) |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 115 | return isa<FunctionProtoType>(FnTy); |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 116 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 117 | assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 118 | return true; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | /// getFunctionOrMethodNumArgs - Return number of function or method |
| 123 | /// arguments. It is an error to call this on a K&R function (use |
| 124 | /// hasFunctionProto first). |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 125 | static unsigned getFunctionOrMethodNumArgs(const Decl *D) { |
| 126 | if (const FunctionType *FnTy = getFunctionType(D)) |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 127 | return cast<FunctionProtoType>(FnTy)->getNumArgs(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 128 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) |
Fariborz Jahanian | d66f22d | 2009-05-19 17:08:59 +0000 | [diff] [blame] | 129 | return BD->getNumParams(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 130 | return cast<ObjCMethodDecl>(D)->param_size(); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 131 | } |
| 132 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 133 | static QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { |
| 134 | if (const FunctionType *FnTy = getFunctionType(D)) |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 135 | return cast<FunctionProtoType>(FnTy)->getArgType(Idx); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 136 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) |
Fariborz Jahanian | d66f22d | 2009-05-19 17:08:59 +0000 | [diff] [blame] | 137 | return BD->getParamDecl(Idx)->getType(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 138 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 139 | return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 140 | } |
| 141 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 142 | static QualType getFunctionOrMethodResultType(const Decl *D) { |
| 143 | if (const FunctionType *FnTy = getFunctionType(D)) |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 144 | return cast<FunctionProtoType>(FnTy)->getResultType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 145 | return cast<ObjCMethodDecl>(D)->getResultType(); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 146 | } |
| 147 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 148 | static bool isFunctionOrMethodVariadic(const Decl *D) { |
| 149 | if (const FunctionType *FnTy = getFunctionType(D)) { |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 150 | const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 151 | return proto->isVariadic(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 152 | } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) |
Ted Kremenek | db9a0ae | 2010-04-29 16:48:58 +0000 | [diff] [blame] | 153 | return BD->isVariadic(); |
Fariborz Jahanian | d66f22d | 2009-05-19 17:08:59 +0000 | [diff] [blame] | 154 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 155 | return cast<ObjCMethodDecl>(D)->isVariadic(); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 156 | } |
| 157 | } |
| 158 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 159 | static bool isInstanceMethod(const Decl *D) { |
| 160 | if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 161 | return MethodDecl->isInstance(); |
| 162 | return false; |
| 163 | } |
| 164 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 165 | static inline bool isNSStringType(QualType T, ASTContext &Ctx) { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 166 | const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); |
Chris Lattner | b77792e | 2008-07-26 22:17:49 +0000 | [diff] [blame] | 167 | if (!PT) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 168 | return false; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 169 | |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 170 | ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); |
| 171 | if (!Cls) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 172 | return false; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 173 | |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 174 | IdentifierInfo* ClsName = Cls->getIdentifier(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 175 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 176 | // FIXME: Should we walk the chain of classes? |
| 177 | return ClsName == &Ctx.Idents.get("NSString") || |
| 178 | ClsName == &Ctx.Idents.get("NSMutableString"); |
| 179 | } |
| 180 | |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 181 | static inline bool isCFStringType(QualType T, ASTContext &Ctx) { |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 182 | const PointerType *PT = T->getAs<PointerType>(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 183 | if (!PT) |
| 184 | return false; |
| 185 | |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 186 | const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 187 | if (!RT) |
| 188 | return false; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 189 | |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 190 | const RecordDecl *RD = RT->getDecl(); |
Abramo Bagnara | 465d41b | 2010-05-11 21:36:43 +0000 | [diff] [blame] | 191 | if (RD->getTagKind() != TTK_Struct) |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 192 | return false; |
| 193 | |
| 194 | return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); |
| 195 | } |
| 196 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 197 | /// \brief Check if the attribute has exactly as many args as Num. May |
| 198 | /// output an error. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 199 | static bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, |
| 200 | unsigned int Num) { |
| 201 | if (Attr.getNumArgs() != Num) { |
| 202 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; |
| 203 | return false; |
| 204 | } |
| 205 | |
| 206 | return true; |
| 207 | } |
| 208 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 209 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 210 | /// \brief Check if the attribute has at least as many args as Num. May |
| 211 | /// output an error. |
| 212 | static bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, |
| 213 | unsigned int Num) { |
| 214 | if (Attr.getNumArgs() < Num) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 215 | S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; |
| 216 | return false; |
| 217 | } |
| 218 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 219 | return true; |
| 220 | } |
| 221 | |
| 222 | /// |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 223 | /// \brief Check if passed in Decl is a field or potentially shared global var |
| 224 | /// \return true if the Decl is a field or potentially shared global variable |
| 225 | /// |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 226 | static bool mayBeSharedVariable(const Decl *D) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 227 | if (isa<FieldDecl>(D)) |
| 228 | return true; |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 229 | if (const VarDecl *vd = dyn_cast<VarDecl>(D)) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 230 | return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); |
| 231 | |
| 232 | return false; |
| 233 | } |
| 234 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 235 | /// \brief Check if the passed-in expression is of type int or bool. |
| 236 | static bool isIntOrBool(Expr *Exp) { |
| 237 | QualType QT = Exp->getType(); |
| 238 | return QT->isBooleanType() || QT->isIntegerType(); |
| 239 | } |
| 240 | |
DeLesley Hutchins | aed9ea3 | 2012-04-23 18:39:55 +0000 | [diff] [blame] | 241 | |
| 242 | // Check to see if the type is a smart pointer of some kind. We assume |
| 243 | // it's a smart pointer if it defines both operator-> and operator*. |
DeLesley Hutchins | 60f2024 | 2012-05-02 22:18:42 +0000 | [diff] [blame^] | 244 | static bool threadSafetyCheckIsSmartPointer(Sema &S, const RecordType* RT) { |
| 245 | DeclContextLookupConstResult Res1 = RT->getDecl()->lookup( |
| 246 | S.Context.DeclarationNames.getCXXOperatorName(OO_Star)); |
| 247 | if (Res1.first == Res1.second) |
| 248 | return false; |
DeLesley Hutchins | aed9ea3 | 2012-04-23 18:39:55 +0000 | [diff] [blame] | 249 | |
DeLesley Hutchins | 60f2024 | 2012-05-02 22:18:42 +0000 | [diff] [blame^] | 250 | DeclContextLookupConstResult Res2 = RT->getDecl()->lookup( |
| 251 | S.Context.DeclarationNames.getCXXOperatorName(OO_Arrow)); |
| 252 | if (Res2.first == Res2.second) |
| 253 | return false; |
| 254 | |
| 255 | return true; |
DeLesley Hutchins | aed9ea3 | 2012-04-23 18:39:55 +0000 | [diff] [blame] | 256 | } |
| 257 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 258 | /// \brief Check if passed in Decl is a pointer type. |
| 259 | /// Note that this function may produce an error message. |
| 260 | /// \return true if the Decl is a pointer type; false otherwise |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 261 | static bool threadSafetyCheckIsPointer(Sema &S, const Decl *D, |
| 262 | const AttributeList &Attr) { |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 263 | if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 264 | QualType QT = vd->getType(); |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 265 | if (QT->isAnyPointerType()) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 266 | return true; |
DeLesley Hutchins | aed9ea3 | 2012-04-23 18:39:55 +0000 | [diff] [blame] | 267 | |
DeLesley Hutchins | 60f2024 | 2012-05-02 22:18:42 +0000 | [diff] [blame^] | 268 | if (const RecordType *RT = QT->getAs<RecordType>()) { |
| 269 | // If it's an incomplete type, it could be a smart pointer; skip it. |
| 270 | // (We don't want to force template instantiation if we can avoid it, |
| 271 | // since that would alter the order in which templates are instantiated.) |
| 272 | if (RT->isIncompleteType()) |
| 273 | return true; |
| 274 | |
| 275 | if (threadSafetyCheckIsSmartPointer(S, RT)) |
| 276 | return true; |
| 277 | } |
DeLesley Hutchins | aed9ea3 | 2012-04-23 18:39:55 +0000 | [diff] [blame] | 278 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 279 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_pointer) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 280 | << Attr.getName()->getName() << QT; |
| 281 | } else { |
| 282 | S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) |
| 283 | << Attr.getName(); |
| 284 | } |
| 285 | return false; |
| 286 | } |
| 287 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 288 | /// \brief Checks that the passed in QualType either is of RecordType or points |
| 289 | /// to RecordType. Returns the relevant RecordType, null if it does not exit. |
Benjamin Kramer | 7d23b4a | 2011-08-19 04:18:11 +0000 | [diff] [blame] | 290 | static const RecordType *getRecordType(QualType QT) { |
| 291 | if (const RecordType *RT = QT->getAs<RecordType>()) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 292 | return RT; |
Benjamin Kramer | 7d23b4a | 2011-08-19 04:18:11 +0000 | [diff] [blame] | 293 | |
| 294 | // Now check if we point to record type. |
| 295 | if (const PointerType *PT = QT->getAs<PointerType>()) |
| 296 | return PT->getPointeeType()->getAs<RecordType>(); |
| 297 | |
| 298 | return 0; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 299 | } |
| 300 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 301 | /// \brief Thread Safety Analysis: Checks that the passed in RecordType |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 302 | /// resolves to a lockable object. |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 303 | static void checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, |
| 304 | QualType Ty) { |
| 305 | const RecordType *RT = getRecordType(Ty); |
| 306 | |
| 307 | // Warn if could not get record type for this argument. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 308 | if (!RT) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 309 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_class) |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 310 | << Attr.getName() << Ty.getAsString(); |
| 311 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 312 | } |
DeLesley Hutchins | 60f2024 | 2012-05-02 22:18:42 +0000 | [diff] [blame^] | 313 | |
DeLesley Hutchins | 634b293 | 2012-02-16 17:15:51 +0000 | [diff] [blame] | 314 | // Don't check for lockable if the class hasn't been defined yet. |
| 315 | if (RT->isIncompleteType()) |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 316 | return; |
DeLesley Hutchins | 60f2024 | 2012-05-02 22:18:42 +0000 | [diff] [blame^] | 317 | |
| 318 | // Allow smart pointers to be used as lockable objects. |
| 319 | // FIXME -- Check the type that the smart pointer points to. |
| 320 | if (threadSafetyCheckIsSmartPointer(S, RT)) |
| 321 | return; |
| 322 | |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 323 | // Warn if the type is not lockable. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 324 | if (!RT->getDecl()->getAttr<LockableAttr>()) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 325 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_lockable) |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 326 | << Attr.getName() << Ty.getAsString(); |
| 327 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 328 | } |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 329 | } |
| 330 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 331 | /// \brief Thread Safety Analysis: Checks that all attribute arguments, starting |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 332 | /// from Sidx, resolve to a lockable object. |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 333 | /// \param Sidx The attribute argument index to start checking with. |
| 334 | /// \param ParamIdxOk Whether an argument can be indexing into a function |
| 335 | /// parameter list. |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 336 | static void checkAttrArgsAreLockableObjs(Sema &S, Decl *D, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 337 | const AttributeList &Attr, |
| 338 | SmallVectorImpl<Expr*> &Args, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 339 | int Sidx = 0, |
| 340 | bool ParamIdxOk = false) { |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 341 | for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 342 | Expr *ArgExp = Attr.getArg(Idx); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 343 | |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 344 | if (ArgExp->isTypeDependent()) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 345 | // FIXME -- need to check this again on template instantiation |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 346 | Args.push_back(ArgExp); |
| 347 | continue; |
| 348 | } |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 349 | |
DeLesley Hutchins | 79747e0 | 2012-04-23 16:45:01 +0000 | [diff] [blame] | 350 | if (StringLiteral *StrLit = dyn_cast<StringLiteral>(ArgExp)) { |
| 351 | // Ignore empty strings without warnings |
| 352 | if (StrLit->getLength() == 0) |
| 353 | continue; |
| 354 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 355 | // We allow constant strings to be used as a placeholder for expressions |
| 356 | // that are not valid C++ syntax, but warn that they are ignored. |
| 357 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_ignored) << |
| 358 | Attr.getName(); |
| 359 | continue; |
| 360 | } |
| 361 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 362 | QualType ArgTy = ArgExp->getType(); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 363 | |
DeLesley Hutchins | 79747e0 | 2012-04-23 16:45:01 +0000 | [diff] [blame] | 364 | // A pointer to member expression of the form &MyClass::mu is treated |
| 365 | // specially -- we need to look at the type of the member. |
| 366 | if (UnaryOperator *UOp = dyn_cast<UnaryOperator>(ArgExp)) |
| 367 | if (UOp->getOpcode() == UO_AddrOf) |
| 368 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(UOp->getSubExpr())) |
| 369 | if (DRE->getDecl()->isCXXInstanceMember()) |
| 370 | ArgTy = DRE->getDecl()->getType(); |
| 371 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 372 | // First see if we can just cast to record type, or point to record type. |
| 373 | const RecordType *RT = getRecordType(ArgTy); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 374 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 375 | // Now check if we index into a record type function param. |
| 376 | if(!RT && ParamIdxOk) { |
| 377 | FunctionDecl *FD = dyn_cast<FunctionDecl>(D); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 378 | IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); |
| 379 | if(FD && IL) { |
| 380 | unsigned int NumParams = FD->getNumParams(); |
| 381 | llvm::APInt ArgValue = IL->getValue(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 382 | uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); |
| 383 | uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; |
| 384 | if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 385 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) |
| 386 | << Attr.getName() << Idx + 1 << NumParams; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 387 | continue; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 388 | } |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 389 | ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 390 | } |
| 391 | } |
| 392 | |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 393 | checkForLockableRecord(S, D, Attr, ArgTy); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 394 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 395 | Args.push_back(ArgExp); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 396 | } |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 397 | } |
| 398 | |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 399 | //===----------------------------------------------------------------------===// |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 400 | // Attribute Implementations |
| 401 | //===----------------------------------------------------------------------===// |
| 402 | |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 403 | // FIXME: All this manual attribute parsing code is gross. At the |
| 404 | // least add some helper functions to check most argument patterns (# |
| 405 | // and types of args). |
| 406 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 407 | static void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 408 | bool pointer = false) { |
| 409 | assert(!Attr.isInvalid()); |
| 410 | |
| 411 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 412 | return; |
| 413 | |
| 414 | // D must be either a member field or global (potentially shared) variable. |
| 415 | if (!mayBeSharedVariable(D)) { |
| 416 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 417 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 418 | return; |
| 419 | } |
| 420 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 421 | if (pointer && !threadSafetyCheckIsPointer(S, D, Attr)) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 422 | return; |
| 423 | |
| 424 | if (pointer) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 425 | D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 426 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 427 | D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 428 | } |
| 429 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 430 | static void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 431 | bool pointer = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 432 | assert(!Attr.isInvalid()); |
| 433 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 434 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 435 | return; |
| 436 | |
| 437 | // D must be either a member field or global (potentially shared) variable. |
| 438 | if (!mayBeSharedVariable(D)) { |
| 439 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 440 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 441 | return; |
| 442 | } |
| 443 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 444 | if (pointer && !threadSafetyCheckIsPointer(S, D, Attr)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 445 | return; |
| 446 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 447 | SmallVector<Expr*, 1> Args; |
| 448 | // check that all arguments are lockable objects |
| 449 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
| 450 | unsigned Size = Args.size(); |
| 451 | if (Size != 1) |
| 452 | return; |
| 453 | Expr *Arg = Args[0]; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 454 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 455 | if (pointer) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 456 | D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 457 | S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 458 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 459 | D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 460 | } |
| 461 | |
| 462 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 463 | static void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 464 | bool scoped = false) { |
| 465 | assert(!Attr.isInvalid()); |
| 466 | |
| 467 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 468 | return; |
| 469 | |
Caitlin Sadowski | 1748b12 | 2011-09-16 00:35:54 +0000 | [diff] [blame] | 470 | // FIXME: Lockable structs for C code. |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 471 | if (!isa<CXXRecordDecl>(D)) { |
| 472 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 473 | << Attr.getName() << ExpectedClass; |
| 474 | return; |
| 475 | } |
| 476 | |
| 477 | if (scoped) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 478 | D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 479 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 480 | D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | static void handleNoThreadSafetyAttr(Sema &S, Decl *D, |
| 484 | const AttributeList &Attr) { |
| 485 | assert(!Attr.isInvalid()); |
| 486 | |
| 487 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 488 | return; |
| 489 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 490 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 491 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 492 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 493 | return; |
| 494 | } |
| 495 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 496 | D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 497 | S.Context)); |
| 498 | } |
| 499 | |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 500 | static void handleNoAddressSafetyAttr(Sema &S, Decl *D, |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 501 | const AttributeList &Attr) { |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 502 | assert(!Attr.isInvalid()); |
| 503 | |
| 504 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 505 | return; |
| 506 | |
| 507 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
| 508 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 509 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 510 | return; |
| 511 | } |
| 512 | |
| 513 | D->addAttr(::new (S.Context) NoAddressSafetyAnalysisAttr(Attr.getRange(), |
| 514 | S.Context)); |
| 515 | } |
| 516 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 517 | static void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 518 | bool before) { |
| 519 | assert(!Attr.isInvalid()); |
| 520 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 521 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 522 | return; |
| 523 | |
| 524 | // D must be either a member field or global (potentially shared) variable. |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 525 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
| 526 | if (!VD || !mayBeSharedVariable(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 527 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 528 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 529 | return; |
| 530 | } |
| 531 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 532 | // Check that this attribute only applies to lockable types. |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 533 | QualType QT = VD->getType(); |
| 534 | if (!QT->isDependentType()) { |
| 535 | const RecordType *RT = getRecordType(QT); |
| 536 | if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 537 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_lockable) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 538 | << Attr.getName(); |
| 539 | return; |
| 540 | } |
| 541 | } |
| 542 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 543 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 544 | // Check that all arguments are lockable objects. |
| 545 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 546 | unsigned Size = Args.size(); |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 547 | if (Size == 0) |
| 548 | return; |
| 549 | Expr **StartArg = &Args[0]; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 550 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 551 | if (before) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 552 | D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 553 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 554 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 555 | D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 556 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | static void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 560 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 561 | assert(!Attr.isInvalid()); |
| 562 | |
| 563 | // zero or more arguments ok |
| 564 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 565 | // check that the attribute is applied to a function |
| 566 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 567 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 568 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 569 | return; |
| 570 | } |
| 571 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 572 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 573 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 574 | checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 575 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 576 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 577 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 578 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 579 | D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 580 | S.Context, StartArg, |
| 581 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 582 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 583 | D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 584 | S.Context, StartArg, |
| 585 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | static void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 589 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 590 | assert(!Attr.isInvalid()); |
| 591 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 592 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 593 | return; |
| 594 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 595 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 596 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 597 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 598 | return; |
| 599 | } |
| 600 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 601 | if (!isIntOrBool(Attr.getArg(0))) { |
| 602 | S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) |
| 603 | << Attr.getName(); |
| 604 | return; |
| 605 | } |
| 606 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 607 | SmallVector<Expr*, 2> Args; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 608 | // check that all arguments are lockable objects |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 609 | checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 610 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 611 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 612 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 613 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 614 | D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 615 | S.Context, |
Caitlin Sadowski | 69f5d14 | 2011-09-15 17:50:19 +0000 | [diff] [blame] | 616 | Attr.getArg(0), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 617 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 618 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 619 | D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 69f5d14 | 2011-09-15 17:50:19 +0000 | [diff] [blame] | 620 | S.Context, |
| 621 | Attr.getArg(0), |
| 622 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 623 | } |
| 624 | |
| 625 | static void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 626 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 627 | assert(!Attr.isInvalid()); |
| 628 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 629 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 630 | return; |
| 631 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 632 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 633 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 634 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 635 | return; |
| 636 | } |
| 637 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 638 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 639 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 640 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 641 | unsigned Size = Args.size(); |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 642 | if (Size == 0) |
| 643 | return; |
| 644 | Expr **StartArg = &Args[0]; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 645 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 646 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 647 | D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 648 | S.Context, StartArg, |
| 649 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 650 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 651 | D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 652 | S.Context, StartArg, |
| 653 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 654 | } |
| 655 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 656 | static void handleUnlockFunAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 657 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 658 | assert(!Attr.isInvalid()); |
| 659 | |
| 660 | // zero or more arguments ok |
| 661 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 662 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 663 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 664 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 665 | return; |
| 666 | } |
| 667 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 668 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 669 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 670 | checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 671 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 672 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 673 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 674 | D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 675 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 676 | } |
| 677 | |
| 678 | static void handleLockReturnedAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 679 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 680 | assert(!Attr.isInvalid()); |
| 681 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 682 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 683 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 684 | Expr *Arg = Attr.getArg(0); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 685 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 686 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 687 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 688 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 689 | return; |
| 690 | } |
| 691 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 692 | if (Arg->isTypeDependent()) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 693 | return; |
| 694 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 695 | // check that the argument is lockable object |
DeLesley Hutchins | f26efd7 | 2012-05-02 17:38:37 +0000 | [diff] [blame] | 696 | SmallVector<Expr*, 1> Args; |
| 697 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
| 698 | unsigned Size = Args.size(); |
| 699 | if (Size == 0) |
| 700 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 701 | |
DeLesley Hutchins | f26efd7 | 2012-05-02 17:38:37 +0000 | [diff] [blame] | 702 | D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, |
| 703 | Args[0])); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 704 | } |
| 705 | |
| 706 | static void handleLocksExcludedAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 707 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 708 | assert(!Attr.isInvalid()); |
| 709 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 710 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 711 | return; |
| 712 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 713 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 714 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 715 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 716 | return; |
| 717 | } |
| 718 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 719 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 720 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 721 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 722 | unsigned Size = Args.size(); |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 723 | if (Size == 0) |
| 724 | return; |
| 725 | Expr **StartArg = &Args[0]; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 726 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 727 | D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 728 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 729 | } |
| 730 | |
| 731 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 732 | static void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, |
| 733 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 734 | TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 735 | if (tDecl == 0) { |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 736 | S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 737 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 738 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 739 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 740 | QualType curType = tDecl->getUnderlyingType(); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 741 | |
| 742 | Expr *sizeExpr; |
| 743 | |
| 744 | // Special case where the argument is a template id. |
| 745 | if (Attr.getParameterName()) { |
John McCall | f7a1a74 | 2009-11-24 19:00:30 +0000 | [diff] [blame] | 746 | CXXScopeSpec SS; |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 747 | SourceLocation TemplateKWLoc; |
John McCall | f7a1a74 | 2009-11-24 19:00:30 +0000 | [diff] [blame] | 748 | UnqualifiedId id; |
| 749 | id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); |
Douglas Gregor | 4ac0140 | 2011-06-15 16:02:29 +0000 | [diff] [blame] | 750 | |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 751 | ExprResult Size = S.ActOnIdExpression(scope, SS, TemplateKWLoc, id, |
| 752 | false, false); |
Douglas Gregor | 4ac0140 | 2011-06-15 16:02:29 +0000 | [diff] [blame] | 753 | if (Size.isInvalid()) |
| 754 | return; |
| 755 | |
| 756 | sizeExpr = Size.get(); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 757 | } else { |
| 758 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 759 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 760 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 761 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 762 | sizeExpr = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 763 | } |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 764 | |
| 765 | // Instantiate/Install the vector type, and let Sema build the type for us. |
| 766 | // This will run the reguired checks. |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 767 | QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 768 | if (!T.isNull()) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 769 | // FIXME: preserve the old source info. |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 770 | tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 771 | |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 772 | // Remember this typedef decl, we will need it later for diagnostics. |
| 773 | S.ExtVectorDecls.push_back(tDecl); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 774 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 775 | } |
| 776 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 777 | static void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 778 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 779 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 780 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 781 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 782 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 783 | TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 784 | else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 785 | // If the alignment is less than or equal to 8 bits, the packed attribute |
| 786 | // has no effect. |
| 787 | if (!FD->getType()->isIncompleteType() && |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 788 | S.Context.getTypeAlign(FD->getType()) <= 8) |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 789 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) |
Chris Lattner | 08631c5 | 2008-11-23 21:45:46 +0000 | [diff] [blame] | 790 | << Attr.getName() << FD->getType(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 791 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 792 | FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 793 | } else |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 794 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 795 | } |
| 796 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 797 | static void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 798 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 799 | TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); |
Fariborz Jahanian | c1a0a73 | 2011-04-26 17:54:40 +0000 | [diff] [blame] | 800 | else |
| 801 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
| 802 | } |
| 803 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 804 | static void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 805 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 806 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 807 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 808 | |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 809 | // The IBAction attributes only apply to instance methods. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 810 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 811 | if (MD->isInstanceMethod()) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 812 | D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 813 | return; |
| 814 | } |
| 815 | |
Ted Kremenek | 4ee2bb1 | 2011-02-04 06:54:16 +0000 | [diff] [blame] | 816 | S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 817 | } |
| 818 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 819 | static bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { |
| 820 | // The IBOutlet/IBOutletCollection attributes only apply to instance |
| 821 | // variables or properties of Objective-C classes. The outlet must also |
| 822 | // have an object reference type. |
| 823 | if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { |
| 824 | if (!VD->getType()->getAs<ObjCObjectPointerType>()) { |
Ted Kremenek | 0bfaf06 | 2011-11-01 18:08:35 +0000 | [diff] [blame] | 825 | S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 826 | << Attr.getName() << VD->getType() << 0; |
| 827 | return false; |
| 828 | } |
| 829 | } |
| 830 | else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { |
| 831 | if (!PD->getType()->getAs<ObjCObjectPointerType>()) { |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 832 | S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 833 | << Attr.getName() << PD->getType() << 1; |
| 834 | return false; |
| 835 | } |
| 836 | } |
| 837 | else { |
| 838 | S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); |
| 839 | return false; |
| 840 | } |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 841 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 842 | return true; |
| 843 | } |
| 844 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 845 | static void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 846 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 847 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 848 | return; |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 849 | |
| 850 | if (!checkIBOutletCommon(S, D, Attr)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 851 | return; |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 852 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 853 | D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 854 | } |
| 855 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 856 | static void handleIBOutletCollection(Sema &S, Decl *D, |
| 857 | const AttributeList &Attr) { |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 858 | |
| 859 | // The iboutletcollection attribute can have zero or one arguments. |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 860 | if (Attr.getParameterName() && Attr.getNumArgs() > 0) { |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 861 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 862 | return; |
| 863 | } |
| 864 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 865 | if (!checkIBOutletCommon(S, D, Attr)) |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 866 | return; |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 867 | |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 868 | IdentifierInfo *II = Attr.getParameterName(); |
| 869 | if (!II) |
Fariborz Jahanian | f4072ae | 2011-10-18 19:54:31 +0000 | [diff] [blame] | 870 | II = &S.Context.Idents.get("NSObject"); |
Fariborz Jahanian | 3a3400b | 2010-08-17 21:39:27 +0000 | [diff] [blame] | 871 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 872 | ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 873 | S.getScopeForContext(D->getDeclContext()->getParent())); |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 874 | if (!TypeRep) { |
| 875 | S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; |
| 876 | return; |
| 877 | } |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 878 | QualType QT = TypeRep.get(); |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 879 | // Diagnose use of non-object type in iboutletcollection attribute. |
| 880 | // FIXME. Gnu attribute extension ignores use of builtin types in |
| 881 | // attributes. So, __attribute__((iboutletcollection(char))) will be |
| 882 | // treated as __attribute__((iboutletcollection())). |
Fariborz Jahanian | f4072ae | 2011-10-18 19:54:31 +0000 | [diff] [blame] | 883 | if (!QT->isObjCIdType() && !QT->isObjCObjectType()) { |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 884 | S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; |
| 885 | return; |
| 886 | } |
Argyrios Kyrtzidis | f1e7af3 | 2011-09-13 18:41:59 +0000 | [diff] [blame] | 887 | D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, |
| 888 | QT, Attr.getParameterLoc())); |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 889 | } |
| 890 | |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 891 | static void possibleTransparentUnionPointerType(QualType &T) { |
Fariborz Jahanian | 68fe96a | 2011-06-27 21:12:03 +0000 | [diff] [blame] | 892 | if (const RecordType *UT = T->getAsUnionType()) |
| 893 | if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { |
| 894 | RecordDecl *UD = UT->getDecl(); |
| 895 | for (RecordDecl::field_iterator it = UD->field_begin(), |
| 896 | itend = UD->field_end(); it != itend; ++it) { |
| 897 | QualType QT = it->getType(); |
| 898 | if (QT->isAnyPointerType() || QT->isBlockPointerType()) { |
| 899 | T = QT; |
| 900 | return; |
| 901 | } |
| 902 | } |
| 903 | } |
| 904 | } |
| 905 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 906 | static void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 907 | // GCC ignores the nonnull attribute on K&R style function prototypes, so we |
| 908 | // ignore it as well |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 909 | if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 910 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 911 | << Attr.getName() << ExpectedFunction; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 912 | return; |
| 913 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 914 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 915 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 916 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 917 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 918 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 919 | |
| 920 | // The nonnull attribute only applies to pointers. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 921 | SmallVector<unsigned, 10> NonNullArgs; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 922 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 923 | for (AttributeList::arg_iterator I=Attr.arg_begin(), |
| 924 | E=Attr.arg_end(); I!=E; ++I) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 925 | |
| 926 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 927 | // The argument must be an integer constant expression. |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 928 | Expr *Ex = *I; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 929 | llvm::APSInt ArgNum(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 930 | if (Ex->isTypeDependent() || Ex->isValueDependent() || |
| 931 | !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 932 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 933 | << "nonnull" << Ex->getSourceRange(); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 934 | return; |
| 935 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 936 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 937 | unsigned x = (unsigned) ArgNum.getZExtValue(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 938 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 939 | if (x < 1 || x > NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 940 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 30bc965 | 2008-11-19 07:22:31 +0000 | [diff] [blame] | 941 | << "nonnull" << I.getArgNum() << Ex->getSourceRange(); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 942 | return; |
| 943 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 944 | |
Ted Kremenek | 465172f | 2008-07-21 22:09:15 +0000 | [diff] [blame] | 945 | --x; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 946 | if (HasImplicitThisParam) { |
| 947 | if (x == 0) { |
| 948 | S.Diag(Attr.getLoc(), |
| 949 | diag::err_attribute_invalid_implicit_this_argument) |
| 950 | << "nonnull" << Ex->getSourceRange(); |
| 951 | return; |
| 952 | } |
| 953 | --x; |
| 954 | } |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 955 | |
| 956 | // Is the function argument a pointer type? |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 957 | QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 958 | possibleTransparentUnionPointerType(T); |
Fariborz Jahanian | 68fe96a | 2011-06-27 21:12:03 +0000 | [diff] [blame] | 959 | |
Ted Kremenek | dbfe99e | 2009-07-15 23:23:54 +0000 | [diff] [blame] | 960 | if (!T->isAnyPointerType() && !T->isBlockPointerType()) { |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 961 | // FIXME: Should also highlight argument in decl. |
Douglas Gregor | c9ef405 | 2010-08-12 18:48:43 +0000 | [diff] [blame] | 962 | S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 963 | << "nonnull" << Ex->getSourceRange(); |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 964 | continue; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 965 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 966 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 967 | NonNullArgs.push_back(x); |
| 968 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 969 | |
| 970 | // If no arguments were specified to __attribute__((nonnull)) then all pointer |
| 971 | // arguments have a nonnull attribute. |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 972 | if (NonNullArgs.empty()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 973 | for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { |
| 974 | QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 975 | possibleTransparentUnionPointerType(T); |
Ted Kremenek | dbfe99e | 2009-07-15 23:23:54 +0000 | [diff] [blame] | 976 | if (T->isAnyPointerType() || T->isBlockPointerType()) |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 977 | NonNullArgs.push_back(I); |
Ted Kremenek | 46bbaca | 2008-11-18 06:52:58 +0000 | [diff] [blame] | 978 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 979 | |
Ted Kremenek | ee1c08c | 2010-10-21 18:49:36 +0000 | [diff] [blame] | 980 | // No pointer arguments? |
Fariborz Jahanian | 60acea4 | 2010-09-27 19:05:51 +0000 | [diff] [blame] | 981 | if (NonNullArgs.empty()) { |
| 982 | // Warn the trivial case only if attribute is not coming from a |
| 983 | // macro instantiation. |
| 984 | if (Attr.getLoc().isFileID()) |
| 985 | S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 986 | return; |
Fariborz Jahanian | 60acea4 | 2010-09-27 19:05:51 +0000 | [diff] [blame] | 987 | } |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 988 | } |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 989 | |
| 990 | unsigned* start = &NonNullArgs[0]; |
| 991 | unsigned size = NonNullArgs.size(); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 992 | llvm::array_pod_sort(start, start + size); |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 993 | D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 994 | size)); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 995 | } |
| 996 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 997 | static void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 998 | // This attribute must be applied to a function declaration. |
| 999 | // The first argument to the attribute must be a string, |
| 1000 | // the name of the resource, for example "malloc". |
| 1001 | // The following arguments must be argument indexes, the arguments must be |
| 1002 | // of integer type for Returns, otherwise of pointer type. |
| 1003 | // The difference between Holds and Takes is that a pointer may still be used |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1004 | // after being held. free() should be __attribute((ownership_takes)), whereas |
| 1005 | // a list append function may well be __attribute((ownership_holds)). |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1006 | |
| 1007 | if (!AL.getParameterName()) { |
| 1008 | S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) |
| 1009 | << AL.getName()->getName() << 1; |
| 1010 | return; |
| 1011 | } |
| 1012 | // Figure out our Kind, and check arguments while we're at it. |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1013 | OwnershipAttr::OwnershipKind K; |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1014 | switch (AL.getKind()) { |
| 1015 | case AttributeList::AT_ownership_takes: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1016 | K = OwnershipAttr::Takes; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1017 | if (AL.getNumArgs() < 1) { |
| 1018 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1019 | return; |
| 1020 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1021 | break; |
| 1022 | case AttributeList::AT_ownership_holds: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1023 | K = OwnershipAttr::Holds; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1024 | if (AL.getNumArgs() < 1) { |
| 1025 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1026 | return; |
| 1027 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1028 | break; |
| 1029 | case AttributeList::AT_ownership_returns: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1030 | K = OwnershipAttr::Returns; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1031 | if (AL.getNumArgs() > 1) { |
| 1032 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) |
| 1033 | << AL.getNumArgs() + 1; |
| 1034 | return; |
| 1035 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1036 | break; |
| 1037 | default: |
| 1038 | // This should never happen given how we are called. |
| 1039 | llvm_unreachable("Unknown ownership attribute"); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1040 | } |
| 1041 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1042 | if (!isFunction(D) || !hasFunctionProto(D)) { |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1043 | S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1044 | << AL.getName() << ExpectedFunction; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1045 | return; |
| 1046 | } |
| 1047 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 1048 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 1049 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1050 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 1051 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1052 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1053 | StringRef Module = AL.getParameterName()->getName(); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1054 | |
| 1055 | // Normalize the argument, __foo__ becomes foo. |
| 1056 | if (Module.startswith("__") && Module.endswith("__")) |
| 1057 | Module = Module.substr(2, Module.size() - 4); |
| 1058 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1059 | SmallVector<unsigned, 10> OwnershipArgs; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1060 | |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1061 | for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; |
| 1062 | ++I) { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1063 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1064 | Expr *IdxExpr = *I; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1065 | llvm::APSInt ArgNum(32); |
| 1066 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() |
| 1067 | || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { |
| 1068 | S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) |
| 1069 | << AL.getName()->getName() << IdxExpr->getSourceRange(); |
| 1070 | continue; |
| 1071 | } |
| 1072 | |
| 1073 | unsigned x = (unsigned) ArgNum.getZExtValue(); |
| 1074 | |
| 1075 | if (x > NumArgs || x < 1) { |
| 1076 | S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) |
| 1077 | << AL.getName()->getName() << x << IdxExpr->getSourceRange(); |
| 1078 | continue; |
| 1079 | } |
| 1080 | --x; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 1081 | if (HasImplicitThisParam) { |
| 1082 | if (x == 0) { |
| 1083 | S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) |
| 1084 | << "ownership" << IdxExpr->getSourceRange(); |
| 1085 | return; |
| 1086 | } |
| 1087 | --x; |
| 1088 | } |
| 1089 | |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1090 | switch (K) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1091 | case OwnershipAttr::Takes: |
| 1092 | case OwnershipAttr::Holds: { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1093 | // Is the function argument a pointer type? |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1094 | QualType T = getFunctionOrMethodArgType(D, x); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1095 | if (!T->isAnyPointerType() && !T->isBlockPointerType()) { |
| 1096 | // FIXME: Should also highlight argument in decl. |
| 1097 | S.Diag(AL.getLoc(), diag::err_ownership_type) |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1098 | << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1099 | << "pointer" |
| 1100 | << IdxExpr->getSourceRange(); |
| 1101 | continue; |
| 1102 | } |
| 1103 | break; |
| 1104 | } |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1105 | case OwnershipAttr::Returns: { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1106 | if (AL.getNumArgs() > 1) { |
| 1107 | // Is the function argument an integer type? |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1108 | Expr *IdxExpr = AL.getArg(0); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1109 | llvm::APSInt ArgNum(32); |
| 1110 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() |
| 1111 | || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { |
| 1112 | S.Diag(AL.getLoc(), diag::err_ownership_type) |
| 1113 | << "ownership_returns" << "integer" |
| 1114 | << IdxExpr->getSourceRange(); |
| 1115 | return; |
| 1116 | } |
| 1117 | } |
| 1118 | break; |
| 1119 | } |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1120 | } // switch |
| 1121 | |
| 1122 | // Check we don't have a conflict with another ownership attribute. |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1123 | for (specific_attr_iterator<OwnershipAttr> |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1124 | i = D->specific_attr_begin<OwnershipAttr>(), |
| 1125 | e = D->specific_attr_end<OwnershipAttr>(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1126 | i != e; ++i) { |
| 1127 | if ((*i)->getOwnKind() != K) { |
| 1128 | for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); |
| 1129 | I!=E; ++I) { |
| 1130 | if (x == *I) { |
| 1131 | S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) |
| 1132 | << AL.getName()->getName() << "ownership_*"; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1133 | } |
| 1134 | } |
| 1135 | } |
| 1136 | } |
| 1137 | OwnershipArgs.push_back(x); |
| 1138 | } |
| 1139 | |
| 1140 | unsigned* start = OwnershipArgs.data(); |
| 1141 | unsigned size = OwnershipArgs.size(); |
| 1142 | llvm::array_pod_sort(start, start + size); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1143 | |
| 1144 | if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { |
| 1145 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1146 | return; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1147 | } |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1148 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1149 | D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1150 | start, size)); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1151 | } |
| 1152 | |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1153 | /// Whether this declaration has internal linkage for the purposes of |
| 1154 | /// things that want to complain about things not have internal linkage. |
| 1155 | static bool hasEffectivelyInternalLinkage(NamedDecl *D) { |
| 1156 | switch (D->getLinkage()) { |
| 1157 | case NoLinkage: |
| 1158 | case InternalLinkage: |
| 1159 | return true; |
| 1160 | |
| 1161 | // Template instantiations that go from external to unique-external |
| 1162 | // shouldn't get diagnosed. |
| 1163 | case UniqueExternalLinkage: |
| 1164 | return true; |
| 1165 | |
| 1166 | case ExternalLinkage: |
| 1167 | return false; |
| 1168 | } |
| 1169 | llvm_unreachable("unknown linkage kind!"); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1170 | } |
| 1171 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1172 | static void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1173 | // Check the attribute arguments. |
| 1174 | if (Attr.getNumArgs() > 1) { |
| 1175 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 1176 | return; |
| 1177 | } |
| 1178 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1179 | if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1180 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1181 | << Attr.getName() << ExpectedVariableOrFunction; |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1182 | return; |
| 1183 | } |
| 1184 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1185 | NamedDecl *nd = cast<NamedDecl>(D); |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1186 | |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1187 | // gcc rejects |
| 1188 | // class c { |
| 1189 | // static int a __attribute__((weakref ("v2"))); |
| 1190 | // static int b() __attribute__((weakref ("f3"))); |
| 1191 | // }; |
| 1192 | // and ignores the attributes of |
| 1193 | // void f(void) { |
| 1194 | // static int a __attribute__((weakref ("v2"))); |
| 1195 | // } |
| 1196 | // we reject them |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1197 | const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1198 | if (!Ctx->isFileContext()) { |
| 1199 | S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1200 | nd->getNameAsString(); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1201 | return; |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1202 | } |
| 1203 | |
| 1204 | // The GCC manual says |
| 1205 | // |
| 1206 | // At present, a declaration to which `weakref' is attached can only |
| 1207 | // be `static'. |
| 1208 | // |
| 1209 | // It also says |
| 1210 | // |
| 1211 | // Without a TARGET, |
| 1212 | // given as an argument to `weakref' or to `alias', `weakref' is |
| 1213 | // equivalent to `weak'. |
| 1214 | // |
| 1215 | // gcc 4.4.1 will accept |
| 1216 | // int a7 __attribute__((weakref)); |
| 1217 | // as |
| 1218 | // int a7 __attribute__((weak)); |
| 1219 | // This looks like a bug in gcc. We reject that for now. We should revisit |
| 1220 | // it if this behaviour is actually used. |
| 1221 | |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1222 | if (!hasEffectivelyInternalLinkage(nd)) { |
| 1223 | S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1224 | return; |
| 1225 | } |
| 1226 | |
| 1227 | // GCC rejects |
| 1228 | // static ((alias ("y"), weakref)). |
| 1229 | // Should we? How to check that weakref is before or after alias? |
| 1230 | |
| 1231 | if (Attr.getNumArgs() == 1) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1232 | Expr *Arg = Attr.getArg(0); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1233 | Arg = Arg->IgnoreParenCasts(); |
| 1234 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
| 1235 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1236 | if (!Str || !Str->isAscii()) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1237 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 1238 | << "weakref" << 1; |
| 1239 | return; |
| 1240 | } |
| 1241 | // GCC will accept anything as the argument of weakref. Should we |
| 1242 | // check for an existing decl? |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1243 | D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1244 | Str->getString())); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1245 | } |
| 1246 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1247 | D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1248 | } |
| 1249 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1250 | static void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1251 | // check the attribute arguments. |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 1252 | if (Attr.getNumArgs() != 1) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1253 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1254 | return; |
| 1255 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1256 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1257 | Expr *Arg = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1258 | Arg = Arg->IgnoreParenCasts(); |
| 1259 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1260 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1261 | if (!Str || !Str->isAscii()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1262 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1263 | << "alias" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1264 | return; |
| 1265 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1266 | |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 1267 | if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { |
Rafael Espindola | f5fe292 | 2010-12-07 15:23:23 +0000 | [diff] [blame] | 1268 | S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); |
| 1269 | return; |
| 1270 | } |
| 1271 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1272 | // FIXME: check if target symbol exists in current file |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1273 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1274 | D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1275 | Str->getString())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1276 | } |
| 1277 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1278 | static void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1279 | // Check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1280 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Daniel Dunbar | af668b0 | 2008-10-28 00:17:57 +0000 | [diff] [blame] | 1281 | return; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1282 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1283 | if (!isa<FunctionDecl>(D)) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1284 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1285 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1286 | return; |
| 1287 | } |
| 1288 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1289 | D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1290 | } |
| 1291 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1292 | static void handleAlwaysInlineAttr(Sema &S, Decl *D, |
| 1293 | const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1294 | // Check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1295 | if (Attr.hasParameterOrArguments()) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1296 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1297 | return; |
| 1298 | } |
| 1299 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1300 | if (!isa<FunctionDecl>(D)) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1301 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1302 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1303 | return; |
| 1304 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1305 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1306 | D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | af668b0 | 2008-10-28 00:17:57 +0000 | [diff] [blame] | 1307 | } |
| 1308 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1309 | static void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1310 | // Check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1311 | if (Attr.hasParameterOrArguments()) { |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1312 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1313 | return; |
| 1314 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1315 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1316 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1317 | QualType RetTy = FD->getResultType(); |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1318 | if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1319 | D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1320 | return; |
| 1321 | } |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1322 | } |
| 1323 | |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1324 | S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1325 | } |
| 1326 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1327 | static void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1328 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1329 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1330 | return; |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1331 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1332 | D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1333 | } |
| 1334 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1335 | static void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 1336 | assert(!Attr.isInvalid()); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1337 | if (isa<VarDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1338 | D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); |
Eric Christopher | 722109c | 2010-12-03 06:58:14 +0000 | [diff] [blame] | 1339 | else |
| 1340 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1341 | << Attr.getName() << ExpectedVariable; |
Eric Christopher | a6cf1e7 | 2010-12-02 02:45:55 +0000 | [diff] [blame] | 1342 | } |
| 1343 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1344 | static void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 1345 | assert(!Attr.isInvalid()); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1346 | if (isa<VarDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1347 | D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); |
Eric Christopher | 722109c | 2010-12-03 06:58:14 +0000 | [diff] [blame] | 1348 | else |
| 1349 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1350 | << Attr.getName() << ExpectedVariable; |
Eric Christopher | a6cf1e7 | 2010-12-02 02:45:55 +0000 | [diff] [blame] | 1351 | } |
| 1352 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1353 | static void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1354 | if (hasDeclarator(D)) return; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1355 | |
| 1356 | if (S.CheckNoReturnAttr(attr)) return; |
| 1357 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1358 | if (!isa<ObjCMethodDecl>(D)) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1359 | S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1360 | << attr.getName() << ExpectedFunctionOrMethod; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1361 | return; |
| 1362 | } |
| 1363 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1364 | D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1365 | } |
| 1366 | |
| 1367 | bool Sema::CheckNoReturnAttr(const AttributeList &attr) { |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1368 | if (attr.hasParameterOrArguments()) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1369 | Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1370 | attr.setInvalid(); |
| 1371 | return true; |
| 1372 | } |
| 1373 | |
| 1374 | return false; |
Ted Kremenek | b725232 | 2009-04-10 00:01:14 +0000 | [diff] [blame] | 1375 | } |
| 1376 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1377 | static void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, |
| 1378 | const AttributeList &Attr) { |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1379 | |
| 1380 | // The checking path for 'noreturn' and 'analyzer_noreturn' are different |
| 1381 | // because 'analyzer_noreturn' does not impact the type. |
| 1382 | |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1383 | if(!checkAttributeNumArgs(S, Attr, 0)) |
| 1384 | return; |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1385 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1386 | if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { |
| 1387 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1388 | if (VD == 0 || (!VD->getType()->isBlockPointerType() |
| 1389 | && !VD->getType()->isFunctionPointerType())) { |
| 1390 | S.Diag(Attr.getLoc(), |
| 1391 | Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type |
| 1392 | : diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1393 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1394 | return; |
| 1395 | } |
| 1396 | } |
| 1397 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1398 | D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1399 | } |
| 1400 | |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1401 | // PS3 PPU-specific. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1402 | static void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1403 | /* |
| 1404 | Returning a Vector Class in Registers |
| 1405 | |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1406 | According to the PPU ABI specifications, a class with a single member of |
| 1407 | vector type is returned in memory when used as the return value of a function. |
| 1408 | This results in inefficient code when implementing vector classes. To return |
| 1409 | the value in a single vector register, add the vecreturn attribute to the |
| 1410 | class definition. This attribute is also applicable to struct types. |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1411 | |
| 1412 | Example: |
| 1413 | |
| 1414 | struct Vector |
| 1415 | { |
| 1416 | __vector float xyzw; |
| 1417 | } __attribute__((vecreturn)); |
| 1418 | |
| 1419 | Vector Add(Vector lhs, Vector rhs) |
| 1420 | { |
| 1421 | Vector result; |
| 1422 | result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); |
| 1423 | return result; // This will be returned in a register |
| 1424 | } |
| 1425 | */ |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1426 | if (!isa<RecordDecl>(D)) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1427 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1428 | << Attr.getName() << ExpectedClass; |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1429 | return; |
| 1430 | } |
| 1431 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1432 | if (D->getAttr<VecReturnAttr>()) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1433 | S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; |
| 1434 | return; |
| 1435 | } |
| 1436 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1437 | RecordDecl *record = cast<RecordDecl>(D); |
John Thompson | 01add59 | 2010-09-18 01:12:07 +0000 | [diff] [blame] | 1438 | int count = 0; |
| 1439 | |
| 1440 | if (!isa<CXXRecordDecl>(record)) { |
| 1441 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); |
| 1442 | return; |
| 1443 | } |
| 1444 | |
| 1445 | if (!cast<CXXRecordDecl>(record)->isPOD()) { |
| 1446 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); |
| 1447 | return; |
| 1448 | } |
| 1449 | |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1450 | for (RecordDecl::field_iterator iter = record->field_begin(); |
| 1451 | iter != record->field_end(); iter++) { |
John Thompson | 01add59 | 2010-09-18 01:12:07 +0000 | [diff] [blame] | 1452 | if ((count == 1) || !iter->getType()->isVectorType()) { |
| 1453 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); |
| 1454 | return; |
| 1455 | } |
| 1456 | count++; |
| 1457 | } |
| 1458 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1459 | D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1460 | } |
| 1461 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1462 | static void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1463 | if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1464 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1465 | << Attr.getName() << ExpectedFunctionMethodOrParameter; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1466 | return; |
| 1467 | } |
| 1468 | // FIXME: Actually store the attribute on the declaration |
| 1469 | } |
| 1470 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1471 | static void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1472 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1473 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1474 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1475 | return; |
| 1476 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1477 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1478 | if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && |
| 1479 | !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1480 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1481 | << Attr.getName() << ExpectedVariableFunctionOrLabel; |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1482 | return; |
| 1483 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1484 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1485 | D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1486 | } |
| 1487 | |
Rafael Espindola | f87cced | 2011-10-03 14:59:42 +0000 | [diff] [blame] | 1488 | static void handleReturnsTwiceAttr(Sema &S, Decl *D, |
| 1489 | const AttributeList &Attr) { |
| 1490 | // check the attribute arguments. |
| 1491 | if (Attr.hasParameterOrArguments()) { |
| 1492 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1493 | return; |
| 1494 | } |
| 1495 | |
| 1496 | if (!isa<FunctionDecl>(D)) { |
| 1497 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1498 | << Attr.getName() << ExpectedFunction; |
| 1499 | return; |
| 1500 | } |
| 1501 | |
| 1502 | D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); |
| 1503 | } |
| 1504 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1505 | static void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1506 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1507 | if (Attr.hasParameterOrArguments()) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1508 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1509 | return; |
| 1510 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1511 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1512 | if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { |
Daniel Dunbar | 186204b | 2009-02-13 22:48:56 +0000 | [diff] [blame] | 1513 | if (VD->hasLocalStorage() || VD->hasExternalStorage()) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1514 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; |
| 1515 | return; |
| 1516 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1517 | } else if (!isFunctionOrMethod(D)) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1518 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1519 | << Attr.getName() << ExpectedVariableOrFunction; |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1520 | return; |
| 1521 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1522 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1523 | D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1524 | } |
| 1525 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1526 | static void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1527 | // check the attribute arguments. |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1528 | if (Attr.getNumArgs() > 1) { |
| 1529 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1530 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1531 | } |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1532 | |
| 1533 | int priority = 65535; // FIXME: Do not hardcode such constants. |
| 1534 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1535 | Expr *E = Attr.getArg(0); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1536 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1537 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1538 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1539 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1540 | << "constructor" << 1 << E->getSourceRange(); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1541 | return; |
| 1542 | } |
| 1543 | priority = Idx.getZExtValue(); |
| 1544 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1545 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1546 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1547 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1548 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1549 | return; |
| 1550 | } |
| 1551 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1552 | D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1553 | priority)); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1554 | } |
| 1555 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1556 | static void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1557 | // check the attribute arguments. |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1558 | if (Attr.getNumArgs() > 1) { |
| 1559 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1560 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1561 | } |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1562 | |
| 1563 | int priority = 65535; // FIXME: Do not hardcode such constants. |
| 1564 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1565 | Expr *E = Attr.getArg(0); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1566 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1567 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1568 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1569 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1570 | << "destructor" << 1 << E->getSourceRange(); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1571 | return; |
| 1572 | } |
| 1573 | priority = Idx.getZExtValue(); |
| 1574 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1575 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1576 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1577 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1578 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1579 | return; |
| 1580 | } |
| 1581 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1582 | D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1583 | priority)); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1584 | } |
| 1585 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1586 | static void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1587 | unsigned NumArgs = Attr.getNumArgs(); |
| 1588 | if (NumArgs > 1) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1589 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1590 | return; |
| 1591 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1592 | |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1593 | // Handle the case where deprecated attribute has a text message. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1594 | StringRef Str; |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1595 | if (NumArgs == 1) { |
| 1596 | StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1597 | if (!SE) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1598 | S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) |
| 1599 | << "deprecated"; |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1600 | return; |
| 1601 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1602 | Str = SE->getString(); |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1603 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1604 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1605 | D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1606 | } |
| 1607 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1608 | static void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1609 | unsigned NumArgs = Attr.getNumArgs(); |
| 1610 | if (NumArgs > 1) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1611 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Fariborz Jahanian | bc1c877 | 2008-12-17 01:07:27 +0000 | [diff] [blame] | 1612 | return; |
| 1613 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1614 | |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1615 | // Handle the case where unavailable attribute has a text message. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1616 | StringRef Str; |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1617 | if (NumArgs == 1) { |
| 1618 | StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1619 | if (!SE) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1620 | S.Diag(Attr.getArg(0)->getLocStart(), |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1621 | diag::err_attribute_not_string) << "unavailable"; |
| 1622 | return; |
| 1623 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1624 | Str = SE->getString(); |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1625 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1626 | D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); |
Fariborz Jahanian | bc1c877 | 2008-12-17 01:07:27 +0000 | [diff] [blame] | 1627 | } |
| 1628 | |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 1629 | static void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, |
| 1630 | const AttributeList &Attr) { |
| 1631 | unsigned NumArgs = Attr.getNumArgs(); |
| 1632 | if (NumArgs > 0) { |
| 1633 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1634 | return; |
| 1635 | } |
| 1636 | |
| 1637 | D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1638 | Attr.getRange(), S.Context)); |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 1639 | } |
| 1640 | |
Patrick Beard | b2f6820 | 2012-04-06 18:12:22 +0000 | [diff] [blame] | 1641 | static void handleObjCRootClassAttr(Sema &S, Decl *D, |
| 1642 | const AttributeList &Attr) { |
| 1643 | if (!isa<ObjCInterfaceDecl>(D)) { |
| 1644 | S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); |
| 1645 | return; |
| 1646 | } |
| 1647 | |
| 1648 | unsigned NumArgs = Attr.getNumArgs(); |
| 1649 | if (NumArgs > 0) { |
| 1650 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1651 | return; |
| 1652 | } |
| 1653 | |
| 1654 | D->addAttr(::new (S.Context) ObjCRootClassAttr(Attr.getRange(), S.Context)); |
| 1655 | } |
| 1656 | |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 1657 | static void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1658 | const AttributeList &Attr) { |
Fariborz Jahanian | 341b8be | 2012-01-03 22:52:32 +0000 | [diff] [blame] | 1659 | if (!isa<ObjCInterfaceDecl>(D)) { |
| 1660 | S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis); |
| 1661 | return; |
| 1662 | } |
| 1663 | |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1664 | unsigned NumArgs = Attr.getNumArgs(); |
| 1665 | if (NumArgs > 0) { |
| 1666 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1667 | return; |
| 1668 | } |
| 1669 | |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 1670 | D->addAttr(::new (S.Context) ObjCRequiresPropertyDefsAttr( |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1671 | Attr.getRange(), S.Context)); |
| 1672 | } |
| 1673 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1674 | static void handleAvailabilityAttr(Sema &S, Decl *D, |
| 1675 | const AttributeList &Attr) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1676 | IdentifierInfo *Platform = Attr.getParameterName(); |
| 1677 | SourceLocation PlatformLoc = Attr.getParameterLoc(); |
| 1678 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1679 | StringRef PlatformName |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1680 | = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); |
| 1681 | if (PlatformName.empty()) { |
| 1682 | S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) |
| 1683 | << Platform; |
| 1684 | |
| 1685 | PlatformName = Platform->getName(); |
| 1686 | } |
| 1687 | |
| 1688 | AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); |
| 1689 | AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); |
| 1690 | AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 1691 | bool IsUnavailable = Attr.getUnavailableLoc().isValid(); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1692 | |
Douglas Gregor | c90df6a | 2011-08-10 16:09:55 +0000 | [diff] [blame] | 1693 | // Ensure that Introduced <= Deprecated <= Obsoleted (although not all |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1694 | // of these steps are needed). |
| 1695 | if (Introduced.isValid() && Deprecated.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1696 | !(Introduced.Version <= Deprecated.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1697 | S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) |
| 1698 | << 1 << PlatformName << Deprecated.Version.getAsString() |
| 1699 | << 0 << Introduced.Version.getAsString(); |
| 1700 | return; |
| 1701 | } |
| 1702 | |
| 1703 | if (Introduced.isValid() && Obsoleted.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1704 | !(Introduced.Version <= Obsoleted.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1705 | S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) |
| 1706 | << 2 << PlatformName << Obsoleted.Version.getAsString() |
| 1707 | << 0 << Introduced.Version.getAsString(); |
| 1708 | return; |
| 1709 | } |
| 1710 | |
| 1711 | if (Deprecated.isValid() && Obsoleted.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1712 | !(Deprecated.Version <= Obsoleted.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1713 | S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) |
| 1714 | << 2 << PlatformName << Obsoleted.Version.getAsString() |
| 1715 | << 1 << Deprecated.Version.getAsString(); |
| 1716 | return; |
| 1717 | } |
| 1718 | |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 1719 | StringRef Str; |
| 1720 | const StringLiteral *SE = |
| 1721 | dyn_cast_or_null<const StringLiteral>(Attr.getMessageExpr()); |
| 1722 | if (SE) |
| 1723 | Str = SE->getString(); |
| 1724 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1725 | D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1726 | Platform, |
| 1727 | Introduced.Version, |
| 1728 | Deprecated.Version, |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 1729 | Obsoleted.Version, |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 1730 | IsUnavailable, |
| 1731 | Str)); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1732 | } |
| 1733 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1734 | static void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1735 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1736 | if(!checkAttributeNumArgs(S, Attr, 1)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1737 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1738 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1739 | Expr *Arg = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1740 | Arg = Arg->IgnoreParenCasts(); |
| 1741 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1742 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1743 | if (!Str || !Str->isAscii()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1744 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1745 | << "visibility" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1746 | return; |
| 1747 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1748 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1749 | StringRef TypeStr = Str->getString(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1750 | VisibilityAttr::VisibilityType type; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1751 | |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1752 | if (TypeStr == "default") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1753 | type = VisibilityAttr::Default; |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1754 | else if (TypeStr == "hidden") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1755 | type = VisibilityAttr::Hidden; |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1756 | else if (TypeStr == "internal") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1757 | type = VisibilityAttr::Hidden; // FIXME |
John McCall | 4188760 | 2012-01-29 01:20:30 +0000 | [diff] [blame] | 1758 | else if (TypeStr == "protected") { |
| 1759 | // Complain about attempts to use protected visibility on targets |
| 1760 | // (like Darwin) that don't support it. |
| 1761 | if (!S.Context.getTargetInfo().hasProtectedVisibility()) { |
| 1762 | S.Diag(Attr.getLoc(), diag::warn_attribute_protected_visibility); |
| 1763 | type = VisibilityAttr::Default; |
| 1764 | } else { |
| 1765 | type = VisibilityAttr::Protected; |
| 1766 | } |
| 1767 | } else { |
Chris Lattner | 08631c5 | 2008-11-23 21:45:46 +0000 | [diff] [blame] | 1768 | S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1769 | return; |
| 1770 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1771 | |
Rafael Espindola | 548d17c | 2012-05-02 20:36:57 +0000 | [diff] [blame] | 1772 | // Find the last Decl that has an attribute. |
| 1773 | VisibilityAttr *PrevAttr; |
| 1774 | assert(D->redecls_begin() == D); |
| 1775 | for (Decl::redecl_iterator I = D->redecls_begin(), E = D->redecls_end(); |
| 1776 | I != E; ++I) { |
| 1777 | PrevAttr = I->getAttr<VisibilityAttr>() ; |
| 1778 | if (PrevAttr) |
| 1779 | break; |
| 1780 | } |
Rafael Espindola | 4e31b4d | 2012-05-01 20:58:29 +0000 | [diff] [blame] | 1781 | |
Rafael Espindola | 45a0b26 | 2012-04-26 01:26:03 +0000 | [diff] [blame] | 1782 | if (PrevAttr) { |
| 1783 | VisibilityAttr::VisibilityType PrevVisibility = PrevAttr->getVisibility(); |
| 1784 | if (PrevVisibility != type) { |
| 1785 | S.Diag(Attr.getLoc(), diag::err_mismatched_visibilit); |
| 1786 | S.Diag(PrevAttr->getLocation(), diag::note_previous_attribute); |
| 1787 | return; |
| 1788 | } |
| 1789 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1790 | D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1791 | } |
| 1792 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1793 | static void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, |
| 1794 | const AttributeList &Attr) { |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1795 | ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); |
| 1796 | if (!method) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1797 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1798 | << ExpectedMethod; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1799 | return; |
| 1800 | } |
| 1801 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1802 | if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { |
| 1803 | if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { |
| 1804 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1805 | << "objc_method_family" << 1; |
| 1806 | } else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1807 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1808 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1809 | Attr.setInvalid(); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1810 | return; |
| 1811 | } |
| 1812 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1813 | StringRef param = Attr.getParameterName()->getName(); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1814 | ObjCMethodFamilyAttr::FamilyKind family; |
| 1815 | if (param == "none") |
| 1816 | family = ObjCMethodFamilyAttr::OMF_None; |
| 1817 | else if (param == "alloc") |
| 1818 | family = ObjCMethodFamilyAttr::OMF_alloc; |
| 1819 | else if (param == "copy") |
| 1820 | family = ObjCMethodFamilyAttr::OMF_copy; |
| 1821 | else if (param == "init") |
| 1822 | family = ObjCMethodFamilyAttr::OMF_init; |
| 1823 | else if (param == "mutableCopy") |
| 1824 | family = ObjCMethodFamilyAttr::OMF_mutableCopy; |
| 1825 | else if (param == "new") |
| 1826 | family = ObjCMethodFamilyAttr::OMF_new; |
| 1827 | else { |
| 1828 | // Just warn and ignore it. This is future-proof against new |
| 1829 | // families being used in system headers. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1830 | S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1831 | return; |
| 1832 | } |
| 1833 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 1834 | if (family == ObjCMethodFamilyAttr::OMF_init && |
| 1835 | !method->getResultType()->isObjCObjectPointerType()) { |
| 1836 | S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) |
| 1837 | << method->getResultType(); |
| 1838 | // Ignore the attribute. |
| 1839 | return; |
| 1840 | } |
| 1841 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1842 | method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 1843 | S.Context, family)); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1844 | } |
| 1845 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1846 | static void handleObjCExceptionAttr(Sema &S, Decl *D, |
| 1847 | const AttributeList &Attr) { |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1848 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1849 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1850 | |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1851 | ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); |
| 1852 | if (OCI == 0) { |
| 1853 | S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); |
| 1854 | return; |
| 1855 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1856 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1857 | D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1858 | } |
| 1859 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1860 | static void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1861 | if (Attr.getNumArgs() != 0) { |
John McCall | 2b7baf0 | 2010-05-28 18:25:28 +0000 | [diff] [blame] | 1862 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1863 | return; |
| 1864 | } |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 1865 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1866 | QualType T = TD->getUnderlyingType(); |
| 1867 | if (!T->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 1868 | !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1869 | S.Diag(TD->getLocation(), diag::err_nsobject_attribute); |
| 1870 | return; |
| 1871 | } |
| 1872 | } |
Ted Kremenek | f6e88d7 | 2012-03-01 01:40:32 +0000 | [diff] [blame] | 1873 | else if (!isa<ObjCPropertyDecl>(D)) { |
| 1874 | // It is okay to include this attribute on properties, e.g.: |
| 1875 | // |
| 1876 | // @property (retain, nonatomic) struct Bork *Q __attribute__((NSObject)); |
| 1877 | // |
| 1878 | // In this case it follows tradition and suppresses an error in the above |
| 1879 | // case. |
Fariborz Jahanian | 9b2eb7b | 2011-11-29 01:48:40 +0000 | [diff] [blame] | 1880 | S.Diag(D->getLocation(), diag::warn_nsobject_attribute); |
Ted Kremenek | f6e88d7 | 2012-03-01 01:40:32 +0000 | [diff] [blame] | 1881 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1882 | D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1883 | } |
| 1884 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1885 | static void |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1886 | handleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1887 | if (Attr.getNumArgs() != 0) { |
John McCall | 2b7baf0 | 2010-05-28 18:25:28 +0000 | [diff] [blame] | 1888 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1889 | return; |
| 1890 | } |
| 1891 | |
| 1892 | if (!isa<FunctionDecl>(D)) { |
| 1893 | S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); |
| 1894 | return; |
| 1895 | } |
| 1896 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1897 | D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1898 | } |
| 1899 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1900 | static void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1901 | if (!Attr.getParameterName()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1902 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1903 | << "blocks" << 1; |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1904 | return; |
| 1905 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1906 | |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1907 | if (Attr.getNumArgs() != 0) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1908 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1909 | return; |
| 1910 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1911 | |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1912 | BlocksAttr::BlockType type; |
Chris Lattner | 92e62b0 | 2008-11-20 04:42:34 +0000 | [diff] [blame] | 1913 | if (Attr.getParameterName()->isStr("byref")) |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1914 | type = BlocksAttr::ByRef; |
| 1915 | else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1916 | S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1917 | << "blocks" << Attr.getParameterName(); |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1918 | return; |
| 1919 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1920 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1921 | D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1922 | } |
| 1923 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1924 | static void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1925 | // check the attribute arguments. |
| 1926 | if (Attr.getNumArgs() > 2) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1927 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1928 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1929 | } |
| 1930 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1931 | unsigned sentinel = 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1932 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1933 | Expr *E = Attr.getArg(0); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1934 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1935 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1936 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1937 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1938 | << "sentinel" << 1 << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1939 | return; |
| 1940 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1941 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1942 | if (Idx.isSigned() && Idx.isNegative()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1943 | S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) |
| 1944 | << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1945 | return; |
| 1946 | } |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1947 | |
| 1948 | sentinel = Idx.getZExtValue(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1949 | } |
| 1950 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1951 | unsigned nullPos = 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1952 | if (Attr.getNumArgs() > 1) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1953 | Expr *E = Attr.getArg(1); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1954 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1955 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1956 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1957 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1958 | << "sentinel" << 2 << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1959 | return; |
| 1960 | } |
| 1961 | nullPos = Idx.getZExtValue(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1962 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1963 | if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1964 | // FIXME: This error message could be improved, it would be nice |
| 1965 | // to say what the bounds actually are. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1966 | S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) |
| 1967 | << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1968 | return; |
| 1969 | } |
| 1970 | } |
| 1971 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1972 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1973 | const FunctionType *FT = FD->getType()->castAs<FunctionType>(); |
Chris Lattner | 897cd90 | 2009-03-17 23:03:47 +0000 | [diff] [blame] | 1974 | if (isa<FunctionNoProtoType>(FT)) { |
| 1975 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); |
| 1976 | return; |
| 1977 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1978 | |
Chris Lattner | 897cd90 | 2009-03-17 23:03:47 +0000 | [diff] [blame] | 1979 | if (!cast<FunctionProtoType>(FT)->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1980 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1981 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1982 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1983 | } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1984 | if (!MD->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1985 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1986 | return; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1987 | } |
Eli Friedman | a0b2ba1 | 2012-01-06 01:23:10 +0000 | [diff] [blame] | 1988 | } else if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) { |
| 1989 | if (!BD->isVariadic()) { |
| 1990 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 1; |
| 1991 | return; |
| 1992 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1993 | } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1994 | QualType Ty = V->getType(); |
Fariborz Jahanian | daf0415 | 2009-05-15 20:33:25 +0000 | [diff] [blame] | 1995 | if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1996 | const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1997 | : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1998 | if (!cast<FunctionProtoType>(FT)->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1999 | int m = Ty->isFunctionPointerType() ? 0 : 1; |
| 2000 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 2001 | return; |
| 2002 | } |
Mike Stump | ac5fc7c | 2009-08-04 21:02:39 +0000 | [diff] [blame] | 2003 | } else { |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 2004 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2005 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 2006 | return; |
| 2007 | } |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 2008 | } else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2009 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2010 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 2011 | return; |
| 2012 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2013 | D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2014 | nullPos)); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 2015 | } |
| 2016 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2017 | static void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2018 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2019 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2020 | return; |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2021 | |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 2022 | if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2023 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2024 | << Attr.getName() << ExpectedFunctionOrMethod; |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2025 | return; |
| 2026 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2027 | |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 2028 | if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { |
| 2029 | S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) |
| 2030 | << Attr.getName() << 0; |
Nuno Lopes | f857798 | 2009-12-22 23:59:52 +0000 | [diff] [blame] | 2031 | return; |
| 2032 | } |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 2033 | if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
| 2034 | if (MD->getResultType()->isVoidType()) { |
| 2035 | S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) |
| 2036 | << Attr.getName() << 1; |
| 2037 | return; |
| 2038 | } |
| 2039 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2040 | D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2041 | } |
| 2042 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2043 | static void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2044 | // check the attribute arguments. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2045 | if (Attr.hasParameterOrArguments()) { |
| 2046 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2047 | return; |
| 2048 | } |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2049 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2050 | if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { |
Fariborz Jahanian | 13c7fcc | 2011-10-21 22:27:12 +0000 | [diff] [blame] | 2051 | if (isa<CXXRecordDecl>(D)) { |
| 2052 | D->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); |
| 2053 | return; |
| 2054 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2055 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 2056 | << Attr.getName() << ExpectedVariableOrFunction; |
Fariborz Jahanian | f23ecd9 | 2009-07-16 01:12:24 +0000 | [diff] [blame] | 2057 | return; |
| 2058 | } |
| 2059 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2060 | NamedDecl *nd = cast<NamedDecl>(D); |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 2061 | |
| 2062 | // 'weak' only applies to declarations with external linkage. |
| 2063 | if (hasEffectivelyInternalLinkage(nd)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2064 | S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2065 | return; |
| 2066 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2067 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2068 | nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2069 | } |
| 2070 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2071 | static void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2072 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2073 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2074 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2075 | |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2076 | |
| 2077 | // weak_import only applies to variable & function declarations. |
| 2078 | bool isDef = false; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 2079 | if (!D->canBeWeakImported(isDef)) { |
| 2080 | if (isDef) |
| 2081 | S.Diag(Attr.getLoc(), |
| 2082 | diag::warn_attribute_weak_import_invalid_on_definition) |
| 2083 | << "weak_import" << 2 /*variable and function*/; |
Douglas Gregor | def8631 | 2011-03-23 13:27:51 +0000 | [diff] [blame] | 2084 | else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2085 | (S.Context.getTargetInfo().getTriple().isOSDarwin() && |
Fariborz Jahanian | 90eed21 | 2011-10-26 23:59:12 +0000 | [diff] [blame] | 2086 | (isa<ObjCInterfaceDecl>(D) || isa<EnumDecl>(D)))) { |
Douglas Gregor | def8631 | 2011-03-23 13:27:51 +0000 | [diff] [blame] | 2087 | // Nothing to warn about here. |
| 2088 | } else |
Fariborz Jahanian | c034974 | 2010-04-13 20:22:35 +0000 | [diff] [blame] | 2089 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2090 | << Attr.getName() << ExpectedVariableOrFunction; |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2091 | |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2092 | return; |
| 2093 | } |
| 2094 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2095 | D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2096 | } |
| 2097 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2098 | static void handleReqdWorkGroupSize(Sema &S, Decl *D, |
| 2099 | const AttributeList &Attr) { |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2100 | // Attribute has 3 arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2101 | if (!checkAttributeNumArgs(S, Attr, 3)) |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2102 | return; |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2103 | |
| 2104 | unsigned WGSize[3]; |
| 2105 | for (unsigned i = 0; i < 3; ++i) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2106 | Expr *E = Attr.getArg(i); |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2107 | llvm::APSInt ArgNum(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2108 | if (E->isTypeDependent() || E->isValueDependent() || |
| 2109 | !E->isIntegerConstantExpr(ArgNum, S.Context)) { |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2110 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 2111 | << "reqd_work_group_size" << E->getSourceRange(); |
| 2112 | return; |
| 2113 | } |
| 2114 | WGSize[i] = (unsigned) ArgNum.getZExtValue(); |
| 2115 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2116 | D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2117 | WGSize[0], WGSize[1], |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2118 | WGSize[2])); |
| 2119 | } |
| 2120 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2121 | static void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2122 | // Attribute has no arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2123 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2124 | return; |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2125 | |
| 2126 | // Make sure that there is a string literal as the sections's single |
| 2127 | // argument. |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2128 | Expr *ArgExpr = Attr.getArg(0); |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2129 | StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2130 | if (!SE) { |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2131 | S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2132 | return; |
| 2133 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2134 | |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2135 | // If the target wants to validate the section specifier, make it happen. |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2136 | std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); |
Chris Lattner | a1e1dc7 | 2010-01-12 20:58:53 +0000 | [diff] [blame] | 2137 | if (!Error.empty()) { |
| 2138 | S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) |
| 2139 | << Error; |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2140 | return; |
| 2141 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2142 | |
Chris Lattner | a1e1dc7 | 2010-01-12 20:58:53 +0000 | [diff] [blame] | 2143 | // This attribute cannot be applied to local variables. |
| 2144 | if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { |
| 2145 | S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); |
| 2146 | return; |
| 2147 | } |
| 2148 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2149 | D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2150 | SE->getString())); |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2151 | } |
| 2152 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2153 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2154 | static void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2155 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2156 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2157 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2158 | return; |
| 2159 | } |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2160 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2161 | if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2162 | if (Existing->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2163 | Existing->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2164 | } else { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2165 | D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2166 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2167 | } |
| 2168 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2169 | static void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2170 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2171 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2172 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2173 | return; |
| 2174 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2175 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2176 | if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2177 | if (Existing->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2178 | Existing->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2179 | } else { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2180 | D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2181 | } |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2182 | } |
| 2183 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2184 | static void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2185 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2186 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2187 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2188 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2189 | D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2190 | } |
| 2191 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2192 | static void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2193 | if (!Attr.getParameterName()) { |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2194 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2195 | return; |
| 2196 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2197 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2198 | if (Attr.getNumArgs() != 0) { |
| 2199 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2200 | return; |
| 2201 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2202 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2203 | VarDecl *VD = dyn_cast<VarDecl>(D); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2204 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2205 | if (!VD || !VD->hasLocalStorage()) { |
| 2206 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; |
| 2207 | return; |
| 2208 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2209 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2210 | // Look up the function |
Douglas Gregor | c83c687 | 2010-04-15 22:33:43 +0000 | [diff] [blame] | 2211 | // FIXME: Lookup probably isn't looking in the right place |
John McCall | f36e02d | 2009-10-09 21:13:30 +0000 | [diff] [blame] | 2212 | NamedDecl *CleanupDecl |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2213 | = S.LookupSingleName(S.TUScope, Attr.getParameterName(), |
| 2214 | Attr.getParameterLoc(), Sema::LookupOrdinaryName); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2215 | if (!CleanupDecl) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2216 | S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2217 | Attr.getParameterName(); |
| 2218 | return; |
| 2219 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2220 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2221 | FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); |
| 2222 | if (!FD) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2223 | S.Diag(Attr.getParameterLoc(), |
| 2224 | diag::err_attribute_cleanup_arg_not_function) |
| 2225 | << Attr.getParameterName(); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2226 | return; |
| 2227 | } |
| 2228 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2229 | if (FD->getNumParams() != 1) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2230 | S.Diag(Attr.getParameterLoc(), |
| 2231 | diag::err_attribute_cleanup_func_must_take_one_arg) |
| 2232 | << Attr.getParameterName(); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2233 | return; |
| 2234 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2235 | |
Anders Carlsson | 89941c1 | 2009-02-07 23:16:50 +0000 | [diff] [blame] | 2236 | // We're currently more strict than GCC about what function types we accept. |
| 2237 | // If this ever proves to be a problem it should be easy to fix. |
| 2238 | QualType Ty = S.Context.getPointerType(VD->getType()); |
| 2239 | QualType ParamTy = FD->getParamDecl(0)->getType(); |
Douglas Gregor | b608b98 | 2011-01-28 02:26:04 +0000 | [diff] [blame] | 2240 | if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), |
| 2241 | ParamTy, Ty) != Sema::Compatible) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2242 | S.Diag(Attr.getParameterLoc(), |
Anders Carlsson | 89941c1 | 2009-02-07 23:16:50 +0000 | [diff] [blame] | 2243 | diag::err_attribute_cleanup_func_arg_incompatible_type) << |
| 2244 | Attr.getParameterName() << ParamTy << Ty; |
| 2245 | return; |
| 2246 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2247 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2248 | D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); |
Eli Friedman | 5f2987c | 2012-02-02 03:46:19 +0000 | [diff] [blame] | 2249 | S.MarkFunctionReferenced(Attr.getParameterLoc(), FD); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2250 | } |
| 2251 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2252 | /// Handle __attribute__((format_arg((idx)))) attribute based on |
| 2253 | /// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2254 | static void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2255 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2256 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2257 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2258 | if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2259 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2260 | << Attr.getName() << ExpectedFunction; |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2261 | return; |
| 2262 | } |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2263 | |
| 2264 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 2265 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2266 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 2267 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2268 | unsigned FirstIdx = 1; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2269 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2270 | // checks for the 2nd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2271 | Expr *IdxExpr = Attr.getArg(0); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2272 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2273 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || |
| 2274 | !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2275 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 2276 | << "format" << 2 << IdxExpr->getSourceRange(); |
| 2277 | return; |
| 2278 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2279 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2280 | if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { |
| 2281 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
| 2282 | << "format" << 2 << IdxExpr->getSourceRange(); |
| 2283 | return; |
| 2284 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2285 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2286 | unsigned ArgIdx = Idx.getZExtValue() - 1; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2287 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2288 | if (HasImplicitThisParam) { |
| 2289 | if (ArgIdx == 0) { |
| 2290 | S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) |
| 2291 | << "format_arg" << IdxExpr->getSourceRange(); |
| 2292 | return; |
| 2293 | } |
| 2294 | ArgIdx--; |
| 2295 | } |
| 2296 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2297 | // make sure the format string is really a string |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2298 | QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2299 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2300 | bool not_nsstring_type = !isNSStringType(Ty, S.Context); |
| 2301 | if (not_nsstring_type && |
| 2302 | !isCFStringType(Ty, S.Context) && |
| 2303 | (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2304 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2305 | // FIXME: Should highlight the actual expression that has the wrong type. |
| 2306 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2307 | << (not_nsstring_type ? "a string type" : "an NSString") |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2308 | << IdxExpr->getSourceRange(); |
| 2309 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2310 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2311 | Ty = getFunctionOrMethodResultType(D); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2312 | if (!isNSStringType(Ty, S.Context) && |
| 2313 | !isCFStringType(Ty, S.Context) && |
| 2314 | (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2315 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2316 | // FIXME: Should highlight the actual expression that has the wrong type. |
| 2317 | S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2318 | << (not_nsstring_type ? "string type" : "NSString") |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2319 | << IdxExpr->getSourceRange(); |
| 2320 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2321 | } |
| 2322 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2323 | D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2324 | Idx.getZExtValue())); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2325 | } |
| 2326 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2327 | enum FormatAttrKind { |
| 2328 | CFStringFormat, |
| 2329 | NSStringFormat, |
| 2330 | StrftimeFormat, |
| 2331 | SupportedFormat, |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2332 | IgnoredFormat, |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2333 | InvalidFormat |
| 2334 | }; |
| 2335 | |
| 2336 | /// getFormatAttrKind - Map from format attribute names to supported format |
| 2337 | /// types. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2338 | static FormatAttrKind getFormatAttrKind(StringRef Format) { |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2339 | // Check for formats that get handled specially. |
| 2340 | if (Format == "NSString") |
| 2341 | return NSStringFormat; |
| 2342 | if (Format == "CFString") |
| 2343 | return CFStringFormat; |
| 2344 | if (Format == "strftime") |
| 2345 | return StrftimeFormat; |
| 2346 | |
| 2347 | // Otherwise, check for supported formats. |
| 2348 | if (Format == "scanf" || Format == "printf" || Format == "printf0" || |
Jean-Daniel Dupas | 69d5384 | 2012-01-27 09:14:17 +0000 | [diff] [blame] | 2349 | Format == "strfmon" || Format == "cmn_err" || Format == "vcmn_err" || |
Chris Lattner | cd5b306 | 2011-02-18 17:05:55 +0000 | [diff] [blame] | 2350 | Format == "zcmn_err" || |
| 2351 | Format == "kprintf") // OpenBSD. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2352 | return SupportedFormat; |
| 2353 | |
Duncan Sands | bc52595 | 2010-03-23 14:44:19 +0000 | [diff] [blame] | 2354 | if (Format == "gcc_diag" || Format == "gcc_cdiag" || |
| 2355 | Format == "gcc_cxxdiag" || Format == "gcc_tdiag") |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2356 | return IgnoredFormat; |
| 2357 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2358 | return InvalidFormat; |
| 2359 | } |
| 2360 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2361 | /// Handle __attribute__((init_priority(priority))) attributes based on |
| 2362 | /// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2363 | static void handleInitPriorityAttr(Sema &S, Decl *D, |
| 2364 | const AttributeList &Attr) { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2365 | if (!S.getLangOpts().CPlusPlus) { |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2366 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
| 2367 | return; |
| 2368 | } |
| 2369 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2370 | if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2371 | S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); |
| 2372 | Attr.setInvalid(); |
| 2373 | return; |
| 2374 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2375 | QualType T = dyn_cast<VarDecl>(D)->getType(); |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2376 | if (S.Context.getAsArrayType(T)) |
| 2377 | T = S.Context.getBaseElementType(T); |
| 2378 | if (!T->getAs<RecordType>()) { |
| 2379 | S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); |
| 2380 | Attr.setInvalid(); |
| 2381 | return; |
| 2382 | } |
| 2383 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2384 | if (Attr.getNumArgs() != 1) { |
| 2385 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2386 | Attr.setInvalid(); |
| 2387 | return; |
| 2388 | } |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2389 | Expr *priorityExpr = Attr.getArg(0); |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2390 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2391 | llvm::APSInt priority(32); |
| 2392 | if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || |
| 2393 | !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { |
| 2394 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 2395 | << "init_priority" << priorityExpr->getSourceRange(); |
| 2396 | Attr.setInvalid(); |
| 2397 | return; |
| 2398 | } |
Fariborz Jahanian | 9f967c5 | 2010-06-21 18:45:05 +0000 | [diff] [blame] | 2399 | unsigned prioritynum = priority.getZExtValue(); |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2400 | if (prioritynum < 101 || prioritynum > 65535) { |
| 2401 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) |
| 2402 | << priorityExpr->getSourceRange(); |
| 2403 | Attr.setInvalid(); |
| 2404 | return; |
| 2405 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2406 | D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2407 | prioritynum)); |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2408 | } |
| 2409 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2410 | /// Handle __attribute__((format(type,idx,firstarg))) attributes based on |
| 2411 | /// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2412 | static void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2413 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2414 | if (!Attr.getParameterName()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2415 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2416 | << "format" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2417 | return; |
| 2418 | } |
| 2419 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2420 | if (Attr.getNumArgs() != 2) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2421 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2422 | return; |
| 2423 | } |
| 2424 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2425 | if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2426 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2427 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2428 | return; |
| 2429 | } |
| 2430 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2431 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 2432 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2433 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 2434 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2435 | unsigned FirstIdx = 1; |
| 2436 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2437 | StringRef Format = Attr.getParameterName()->getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2438 | |
| 2439 | // Normalize the argument, __foo__ becomes foo. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2440 | if (Format.startswith("__") && Format.endswith("__")) |
| 2441 | Format = Format.substr(2, Format.size() - 4); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2442 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2443 | // Check for supported formats. |
| 2444 | FormatAttrKind Kind = getFormatAttrKind(Format); |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2445 | |
| 2446 | if (Kind == IgnoredFormat) |
| 2447 | return; |
| 2448 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2449 | if (Kind == InvalidFormat) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2450 | S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 2451 | << "format" << Attr.getParameterName()->getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2452 | return; |
| 2453 | } |
| 2454 | |
| 2455 | // checks for the 2nd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2456 | Expr *IdxExpr = Attr.getArg(0); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2457 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2458 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || |
| 2459 | !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2460 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2461 | << "format" << 2 << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2462 | return; |
| 2463 | } |
| 2464 | |
| 2465 | if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2466 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2467 | << "format" << 2 << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2468 | return; |
| 2469 | } |
| 2470 | |
| 2471 | // FIXME: Do we need to bounds check? |
| 2472 | unsigned ArgIdx = Idx.getZExtValue() - 1; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2473 | |
Sebastian Redl | 4a2614e | 2009-11-17 18:02:24 +0000 | [diff] [blame] | 2474 | if (HasImplicitThisParam) { |
| 2475 | if (ArgIdx == 0) { |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2476 | S.Diag(Attr.getLoc(), |
| 2477 | diag::err_format_attribute_implicit_this_format_string) |
| 2478 | << IdxExpr->getSourceRange(); |
Sebastian Redl | 4a2614e | 2009-11-17 18:02:24 +0000 | [diff] [blame] | 2479 | return; |
| 2480 | } |
| 2481 | ArgIdx--; |
| 2482 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2483 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2484 | // make sure the format string is really a string |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2485 | QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2486 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2487 | if (Kind == CFStringFormat) { |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 2488 | if (!isCFStringType(Ty, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2489 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2490 | << "a CFString" << IdxExpr->getSourceRange(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 2491 | return; |
| 2492 | } |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2493 | } else if (Kind == NSStringFormat) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2494 | // FIXME: do we need to check if the type is NSString*? What are the |
| 2495 | // semantics? |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2496 | if (!isNSStringType(Ty, S.Context)) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2497 | // FIXME: Should highlight the actual expression that has the wrong type. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2498 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2499 | << "an NSString" << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2500 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2501 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2502 | } else if (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2503 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2504 | // FIXME: Should highlight the actual expression that has the wrong type. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2505 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2506 | << "a string type" << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2507 | return; |
| 2508 | } |
| 2509 | |
| 2510 | // check the 3rd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2511 | Expr *FirstArgExpr = Attr.getArg(1); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2512 | llvm::APSInt FirstArg(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2513 | if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || |
| 2514 | !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2515 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2516 | << "format" << 3 << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2517 | return; |
| 2518 | } |
| 2519 | |
| 2520 | // check if the function is variadic if the 3rd argument non-zero |
| 2521 | if (FirstArg != 0) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2522 | if (isFunctionOrMethodVariadic(D)) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2523 | ++NumArgs; // +1 for ... |
| 2524 | } else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2525 | S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2526 | return; |
| 2527 | } |
| 2528 | } |
| 2529 | |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2530 | // strftime requires FirstArg to be 0 because it doesn't read from any |
| 2531 | // variable the input is just the current time + the format string. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2532 | if (Kind == StrftimeFormat) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2533 | if (FirstArg != 0) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2534 | S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) |
| 2535 | << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2536 | return; |
| 2537 | } |
| 2538 | // if 0 it disables parameter checking (to use with e.g. va_list) |
| 2539 | } else if (FirstArg != 0 && FirstArg != NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2540 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2541 | << "format" << 3 << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2542 | return; |
| 2543 | } |
| 2544 | |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2545 | // Check whether we already have an equivalent format attribute. |
| 2546 | for (specific_attr_iterator<FormatAttr> |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2547 | i = D->specific_attr_begin<FormatAttr>(), |
| 2548 | e = D->specific_attr_end<FormatAttr>(); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2549 | i != e ; ++i) { |
| 2550 | FormatAttr *f = *i; |
| 2551 | if (f->getType() == Format && |
| 2552 | f->getFormatIdx() == (int)Idx.getZExtValue() && |
| 2553 | f->getFirstArg() == (int)FirstArg.getZExtValue()) { |
| 2554 | // If we don't have a valid location for this attribute, adopt the |
| 2555 | // location. |
| 2556 | if (f->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2557 | f->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2558 | return; |
| 2559 | } |
| 2560 | } |
| 2561 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2562 | D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2563 | Idx.getZExtValue(), |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2564 | FirstArg.getZExtValue())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2565 | } |
| 2566 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2567 | static void handleTransparentUnionAttr(Sema &S, Decl *D, |
| 2568 | const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2569 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2570 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2571 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2572 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2573 | |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2574 | // Try to find the underlying union declaration. |
| 2575 | RecordDecl *RD = 0; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2576 | TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2577 | if (TD && TD->getUnderlyingType()->isUnionType()) |
| 2578 | RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); |
| 2579 | else |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2580 | RD = dyn_cast<RecordDecl>(D); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2581 | |
| 2582 | if (!RD || !RD->isUnion()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2583 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2584 | << Attr.getName() << ExpectedUnion; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2585 | return; |
| 2586 | } |
| 2587 | |
John McCall | 5e1cdac | 2011-10-07 06:10:15 +0000 | [diff] [blame] | 2588 | if (!RD->isCompleteDefinition()) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2589 | S.Diag(Attr.getLoc(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2590 | diag::warn_transparent_union_attribute_not_definition); |
| 2591 | return; |
| 2592 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2593 | |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2594 | RecordDecl::field_iterator Field = RD->field_begin(), |
| 2595 | FieldEnd = RD->field_end(); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2596 | if (Field == FieldEnd) { |
| 2597 | S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); |
| 2598 | return; |
| 2599 | } |
Eli Friedman | bc88745 | 2008-09-02 05:19:23 +0000 | [diff] [blame] | 2600 | |
David Blaikie | 262bc18 | 2012-04-30 02:36:29 +0000 | [diff] [blame] | 2601 | FieldDecl *FirstField = &*Field; |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2602 | QualType FirstType = FirstField->getType(); |
Douglas Gregor | 90cd672 | 2010-06-30 17:24:13 +0000 | [diff] [blame] | 2603 | if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2604 | S.Diag(FirstField->getLocation(), |
Douglas Gregor | 90cd672 | 2010-06-30 17:24:13 +0000 | [diff] [blame] | 2605 | diag::warn_transparent_union_attribute_floating) |
| 2606 | << FirstType->isVectorType() << FirstType; |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2607 | return; |
| 2608 | } |
| 2609 | |
| 2610 | uint64_t FirstSize = S.Context.getTypeSize(FirstType); |
| 2611 | uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); |
| 2612 | for (; Field != FieldEnd; ++Field) { |
| 2613 | QualType FieldType = Field->getType(); |
| 2614 | if (S.Context.getTypeSize(FieldType) != FirstSize || |
| 2615 | S.Context.getTypeAlign(FieldType) != FirstAlign) { |
| 2616 | // Warn if we drop the attribute. |
| 2617 | bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2618 | unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2619 | : S.Context.getTypeAlign(FieldType); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2620 | S.Diag(Field->getLocation(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2621 | diag::warn_transparent_union_attribute_field_size_align) |
| 2622 | << isSize << Field->getDeclName() << FieldBits; |
| 2623 | unsigned FirstBits = isSize? FirstSize : FirstAlign; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2624 | S.Diag(FirstField->getLocation(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2625 | diag::note_transparent_union_first_field_size_align) |
| 2626 | << isSize << FirstBits; |
Eli Friedman | bc88745 | 2008-09-02 05:19:23 +0000 | [diff] [blame] | 2627 | return; |
| 2628 | } |
| 2629 | } |
| 2630 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2631 | RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2632 | } |
| 2633 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2634 | static void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2635 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2636 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2637 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2638 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2639 | Expr *ArgExpr = Attr.getArg(0); |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2640 | StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2641 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2642 | // Make sure that there is a string literal as the annotation's single |
| 2643 | // argument. |
| 2644 | if (!SE) { |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2645 | S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2646 | return; |
| 2647 | } |
Julien Lerouge | 77f68bb | 2011-09-09 22:41:49 +0000 | [diff] [blame] | 2648 | |
| 2649 | // Don't duplicate annotations that are already set. |
| 2650 | for (specific_attr_iterator<AnnotateAttr> |
| 2651 | i = D->specific_attr_begin<AnnotateAttr>(), |
| 2652 | e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { |
| 2653 | if ((*i)->getAnnotation() == SE->getString()) |
| 2654 | return; |
| 2655 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2656 | D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2657 | SE->getString())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2658 | } |
| 2659 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2660 | static void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2661 | // check the attribute arguments. |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2662 | if (Attr.getNumArgs() > 1) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2663 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2664 | return; |
| 2665 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2666 | |
| 2667 | //FIXME: The C++0x version of this attribute has more limited applicabilty |
| 2668 | // than GNU's, and should error out when it is used to specify a |
| 2669 | // weaker alignment, rather than being silently ignored. |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2670 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2671 | if (Attr.getNumArgs() == 0) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2672 | D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2673 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2674 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2675 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2676 | S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2677 | } |
| 2678 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2679 | void Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2680 | // FIXME: Handle pack-expansions here. |
| 2681 | if (DiagnoseUnexpandedParameterPack(E)) |
| 2682 | return; |
| 2683 | |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2684 | if (E->isTypeDependent() || E->isValueDependent()) { |
| 2685 | // Save dependent expressions in the AST to be instantiated. |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2686 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2687 | return; |
| 2688 | } |
| 2689 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2690 | SourceLocation AttrLoc = AttrRange.getBegin(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2691 | // FIXME: Cache the number on the Attr object? |
Chris Lattner | 49e2d34 | 2008-06-28 23:50:44 +0000 | [diff] [blame] | 2692 | llvm::APSInt Alignment(32); |
Richard Smith | 282e7e6 | 2012-02-04 09:53:13 +0000 | [diff] [blame] | 2693 | ExprResult ICE = |
| 2694 | VerifyIntegerConstantExpression(E, &Alignment, |
| 2695 | PDiag(diag::err_attribute_argument_not_int) << "aligned", |
| 2696 | /*AllowFold*/ false); |
| 2697 | if (ICE.isInvalid()) |
Chris Lattner | 49e2d34 | 2008-06-28 23:50:44 +0000 | [diff] [blame] | 2698 | return; |
Daniel Dunbar | 396b2a2 | 2009-02-16 23:37:57 +0000 | [diff] [blame] | 2699 | if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2700 | Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) |
| 2701 | << E->getSourceRange(); |
Daniel Dunbar | 396b2a2 | 2009-02-16 23:37:57 +0000 | [diff] [blame] | 2702 | return; |
| 2703 | } |
| 2704 | |
Richard Smith | 282e7e6 | 2012-02-04 09:53:13 +0000 | [diff] [blame] | 2705 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, ICE.take())); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2706 | } |
| 2707 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2708 | void Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2709 | // FIXME: Cache the number on the Attr object if non-dependent? |
| 2710 | // FIXME: Perform checking of type validity |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2711 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2712 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2713 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2714 | |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 2715 | /// handleModeAttr - This attribute modifies the width of a decl with primitive |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2716 | /// type. |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2717 | /// |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2718 | /// Despite what would be logical, the mode attribute is a decl attribute, not a |
| 2719 | /// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be |
| 2720 | /// HImode, not an intermediate pointer. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2721 | static void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2722 | // This attribute isn't documented, but glibc uses it. It changes |
| 2723 | // the width of an int or unsigned int to the specified size. |
| 2724 | |
| 2725 | // Check that there aren't any arguments |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2726 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2727 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2728 | |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2729 | |
| 2730 | IdentifierInfo *Name = Attr.getParameterName(); |
| 2731 | if (!Name) { |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2732 | S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2733 | return; |
| 2734 | } |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2735 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2736 | StringRef Str = Attr.getParameterName()->getName(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2737 | |
| 2738 | // Normalize the attribute name, __foo__ becomes foo. |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2739 | if (Str.startswith("__") && Str.endswith("__")) |
| 2740 | Str = Str.substr(2, Str.size() - 4); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2741 | |
| 2742 | unsigned DestWidth = 0; |
| 2743 | bool IntegerMode = true; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2744 | bool ComplexMode = false; |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2745 | switch (Str.size()) { |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2746 | case 2: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2747 | switch (Str[0]) { |
| 2748 | case 'Q': DestWidth = 8; break; |
| 2749 | case 'H': DestWidth = 16; break; |
| 2750 | case 'S': DestWidth = 32; break; |
| 2751 | case 'D': DestWidth = 64; break; |
| 2752 | case 'X': DestWidth = 96; break; |
| 2753 | case 'T': DestWidth = 128; break; |
| 2754 | } |
| 2755 | if (Str[1] == 'F') { |
| 2756 | IntegerMode = false; |
| 2757 | } else if (Str[1] == 'C') { |
| 2758 | IntegerMode = false; |
| 2759 | ComplexMode = true; |
| 2760 | } else if (Str[1] != 'I') { |
| 2761 | DestWidth = 0; |
| 2762 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2763 | break; |
| 2764 | case 4: |
| 2765 | // FIXME: glibc uses 'word' to define register_t; this is narrower than a |
| 2766 | // pointer on PIC16 and other embedded platforms. |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2767 | if (Str == "word") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2768 | DestWidth = S.Context.getTargetInfo().getPointerWidth(0); |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2769 | else if (Str == "byte") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2770 | DestWidth = S.Context.getTargetInfo().getCharWidth(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2771 | break; |
| 2772 | case 7: |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2773 | if (Str == "pointer") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2774 | DestWidth = S.Context.getTargetInfo().getPointerWidth(0); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2775 | break; |
| 2776 | } |
| 2777 | |
| 2778 | QualType OldTy; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 2779 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2780 | OldTy = TD->getUnderlyingType(); |
| 2781 | else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) |
| 2782 | OldTy = VD->getType(); |
| 2783 | else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2784 | S.Diag(D->getLocation(), diag::err_attr_wrong_decl) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2785 | << "mode" << Attr.getRange(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2786 | return; |
| 2787 | } |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2788 | |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 2789 | if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2790 | S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); |
| 2791 | else if (IntegerMode) { |
Douglas Gregor | 2ade35e | 2010-06-16 00:17:44 +0000 | [diff] [blame] | 2792 | if (!OldTy->isIntegralOrEnumerationType()) |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2793 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2794 | } else if (ComplexMode) { |
| 2795 | if (!OldTy->isComplexType()) |
| 2796 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2797 | } else { |
| 2798 | if (!OldTy->isFloatingType()) |
| 2799 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2800 | } |
| 2801 | |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2802 | // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t |
| 2803 | // and friends, at least with glibc. |
| 2804 | // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong |
| 2805 | // width on unusual platforms. |
Eli Friedman | f98aba3 | 2009-02-13 02:31:07 +0000 | [diff] [blame] | 2806 | // FIXME: Make sure floating-point mappings are accurate |
| 2807 | // FIXME: Support XF and TF types |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2808 | QualType NewTy; |
| 2809 | switch (DestWidth) { |
| 2810 | case 0: |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2811 | S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2812 | return; |
| 2813 | default: |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2814 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2815 | return; |
| 2816 | case 8: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2817 | if (!IntegerMode) { |
| 2818 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2819 | return; |
| 2820 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2821 | if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2822 | NewTy = S.Context.SignedCharTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2823 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2824 | NewTy = S.Context.UnsignedCharTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2825 | break; |
| 2826 | case 16: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2827 | if (!IntegerMode) { |
| 2828 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2829 | return; |
| 2830 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2831 | if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2832 | NewTy = S.Context.ShortTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2833 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2834 | NewTy = S.Context.UnsignedShortTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2835 | break; |
| 2836 | case 32: |
| 2837 | if (!IntegerMode) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2838 | NewTy = S.Context.FloatTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2839 | else if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2840 | NewTy = S.Context.IntTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2841 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2842 | NewTy = S.Context.UnsignedIntTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2843 | break; |
| 2844 | case 64: |
| 2845 | if (!IntegerMode) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2846 | NewTy = S.Context.DoubleTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2847 | else if (OldTy->isSignedIntegerType()) |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2848 | if (S.Context.getTargetInfo().getLongWidth() == 64) |
Chandler Carruth | aec7caa | 2010-01-26 06:39:24 +0000 | [diff] [blame] | 2849 | NewTy = S.Context.LongTy; |
| 2850 | else |
| 2851 | NewTy = S.Context.LongLongTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2852 | else |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2853 | if (S.Context.getTargetInfo().getLongWidth() == 64) |
Chandler Carruth | aec7caa | 2010-01-26 06:39:24 +0000 | [diff] [blame] | 2854 | NewTy = S.Context.UnsignedLongTy; |
| 2855 | else |
| 2856 | NewTy = S.Context.UnsignedLongLongTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2857 | break; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2858 | case 96: |
| 2859 | NewTy = S.Context.LongDoubleTy; |
| 2860 | break; |
Eli Friedman | f98aba3 | 2009-02-13 02:31:07 +0000 | [diff] [blame] | 2861 | case 128: |
| 2862 | if (!IntegerMode) { |
| 2863 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2864 | return; |
| 2865 | } |
Anders Carlsson | f5f7d86 | 2009-12-29 07:07:36 +0000 | [diff] [blame] | 2866 | if (OldTy->isSignedIntegerType()) |
| 2867 | NewTy = S.Context.Int128Ty; |
| 2868 | else |
| 2869 | NewTy = S.Context.UnsignedInt128Ty; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2870 | break; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2871 | } |
| 2872 | |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2873 | if (ComplexMode) { |
| 2874 | NewTy = S.Context.getComplexType(NewTy); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2875 | } |
| 2876 | |
| 2877 | // Install the new type. |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 2878 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 2879 | // FIXME: preserve existing source info. |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 2880 | TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 2881 | } else |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2882 | cast<ValueDecl>(D)->setType(NewTy); |
| 2883 | } |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 2884 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2885 | static void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2886 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2887 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2888 | return; |
Anders Carlsson | e896d98 | 2009-02-13 08:11:52 +0000 | [diff] [blame] | 2889 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2890 | if (!isFunctionOrMethod(D)) { |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2891 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2892 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2893 | return; |
| 2894 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2895 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2896 | D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2897 | } |
| 2898 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2899 | static void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2900 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2901 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2902 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2903 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2904 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2905 | if (!isa<FunctionDecl>(D)) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2906 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2907 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2908 | return; |
| 2909 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2910 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2911 | D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2912 | } |
| 2913 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2914 | static void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, |
| 2915 | const AttributeList &Attr) { |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2916 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2917 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2918 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2919 | |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2920 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2921 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2922 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2923 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2924 | return; |
| 2925 | } |
| 2926 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2927 | D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2928 | S.Context)); |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2929 | } |
| 2930 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2931 | static void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2932 | if (S.LangOpts.CUDA) { |
| 2933 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2934 | if (Attr.hasParameterOrArguments()) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2935 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 2936 | return; |
| 2937 | } |
| 2938 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2939 | if (!isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2940 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2941 | << Attr.getName() << ExpectedVariable; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2942 | return; |
| 2943 | } |
| 2944 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2945 | D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2946 | } else { |
| 2947 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; |
| 2948 | } |
| 2949 | } |
| 2950 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2951 | static void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2952 | if (S.LangOpts.CUDA) { |
| 2953 | // check the attribute arguments. |
| 2954 | if (Attr.getNumArgs() != 0) { |
| 2955 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 2956 | return; |
| 2957 | } |
| 2958 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2959 | if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2960 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2961 | << Attr.getName() << ExpectedVariableOrFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2962 | return; |
| 2963 | } |
| 2964 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2965 | D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2966 | } else { |
| 2967 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; |
| 2968 | } |
| 2969 | } |
| 2970 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2971 | static void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2972 | if (S.LangOpts.CUDA) { |
| 2973 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2974 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2975 | return; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2976 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2977 | if (!isa<FunctionDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2978 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2979 | << Attr.getName() << ExpectedFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2980 | return; |
| 2981 | } |
| 2982 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2983 | FunctionDecl *FD = cast<FunctionDecl>(D); |
Peter Collingbourne | 2c2c8dd | 2010-12-12 23:02:57 +0000 | [diff] [blame] | 2984 | if (!FD->getResultType()->isVoidType()) { |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 2985 | TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); |
Peter Collingbourne | 2c2c8dd | 2010-12-12 23:02:57 +0000 | [diff] [blame] | 2986 | if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { |
| 2987 | S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) |
| 2988 | << FD->getType() |
| 2989 | << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), |
| 2990 | "void"); |
| 2991 | } else { |
| 2992 | S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) |
| 2993 | << FD->getType(); |
| 2994 | } |
| 2995 | return; |
| 2996 | } |
| 2997 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2998 | D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2999 | } else { |
| 3000 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; |
| 3001 | } |
| 3002 | } |
| 3003 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3004 | static void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3005 | if (S.LangOpts.CUDA) { |
| 3006 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3007 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3008 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3009 | |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3010 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3011 | if (!isa<FunctionDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3012 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3013 | << Attr.getName() << ExpectedFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3014 | return; |
| 3015 | } |
| 3016 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3017 | D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3018 | } else { |
| 3019 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; |
| 3020 | } |
| 3021 | } |
| 3022 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3023 | static void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3024 | if (S.LangOpts.CUDA) { |
| 3025 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3026 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3027 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3028 | |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3029 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3030 | if (!isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3031 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3032 | << Attr.getName() << ExpectedVariable; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3033 | return; |
| 3034 | } |
| 3035 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3036 | D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3037 | } else { |
| 3038 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; |
| 3039 | } |
| 3040 | } |
| 3041 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3042 | static void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3043 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3044 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3045 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3046 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3047 | FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); |
Chris Lattner | c519743 | 2009-04-14 17:02:11 +0000 | [diff] [blame] | 3048 | if (Fn == 0) { |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3049 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3050 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3051 | return; |
| 3052 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3053 | |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 3054 | if (!Fn->isInlineSpecified()) { |
Chris Lattner | cf2a721 | 2009-04-20 19:12:28 +0000 | [diff] [blame] | 3055 | S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); |
Chris Lattner | c519743 | 2009-04-14 17:02:11 +0000 | [diff] [blame] | 3056 | return; |
| 3057 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3058 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3059 | D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3060 | } |
| 3061 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3062 | static void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3063 | if (hasDeclarator(D)) return; |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3064 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3065 | // Diagnostic is emitted elsewhere: here we store the (valid) Attr |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3066 | // in the Decl node for syntactic reasoning, e.g., pretty-printing. |
| 3067 | CallingConv CC; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3068 | if (S.CheckCallingConvAttr(Attr, CC)) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3069 | return; |
| 3070 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3071 | if (!isa<ObjCMethodDecl>(D)) { |
| 3072 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 3073 | << Attr.getName() << ExpectedFunctionOrMethod; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3074 | return; |
| 3075 | } |
| 3076 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3077 | switch (Attr.getKind()) { |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3078 | case AttributeList::AT_fastcall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3079 | D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3080 | return; |
| 3081 | case AttributeList::AT_stdcall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3082 | D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3083 | return; |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 3084 | case AttributeList::AT_thiscall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3085 | D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | 04633eb | 2010-08-30 23:30:49 +0000 | [diff] [blame] | 3086 | return; |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3087 | case AttributeList::AT_cdecl: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3088 | D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3089 | return; |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3090 | case AttributeList::AT_pascal: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3091 | D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3092 | return; |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3093 | case AttributeList::AT_pcs: { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3094 | Expr *Arg = Attr.getArg(0); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3095 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3096 | if (!Str || !Str->isAscii()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3097 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3098 | << "pcs" << 1; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3099 | Attr.setInvalid(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3100 | return; |
| 3101 | } |
| 3102 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3103 | StringRef StrRef = Str->getString(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3104 | PcsAttr::PCSType PCS; |
| 3105 | if (StrRef == "aapcs") |
| 3106 | PCS = PcsAttr::AAPCS; |
| 3107 | else if (StrRef == "aapcs-vfp") |
| 3108 | PCS = PcsAttr::AAPCS_VFP; |
| 3109 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3110 | S.Diag(Attr.getLoc(), diag::err_invalid_pcs); |
| 3111 | Attr.setInvalid(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3112 | return; |
| 3113 | } |
| 3114 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3115 | D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3116 | } |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3117 | default: |
| 3118 | llvm_unreachable("unexpected attribute kind"); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3119 | } |
| 3120 | } |
| 3121 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3122 | static void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 3123 | assert(!Attr.isInvalid()); |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3124 | D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3125 | } |
| 3126 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3127 | bool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { |
| 3128 | if (attr.isInvalid()) |
| 3129 | return true; |
| 3130 | |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 3131 | if ((attr.getNumArgs() != 0 && |
| 3132 | !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || |
| 3133 | attr.getParameterName()) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3134 | Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 3135 | attr.setInvalid(); |
| 3136 | return true; |
| 3137 | } |
| 3138 | |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3139 | // TODO: diagnose uses of these conventions on the wrong target. Or, better |
| 3140 | // move to TargetAttributesSema one day. |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3141 | switch (attr.getKind()) { |
| 3142 | case AttributeList::AT_cdecl: CC = CC_C; break; |
| 3143 | case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; |
| 3144 | case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; |
| 3145 | case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; |
| 3146 | case AttributeList::AT_pascal: CC = CC_X86Pascal; break; |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3147 | case AttributeList::AT_pcs: { |
| 3148 | Expr *Arg = attr.getArg(0); |
| 3149 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3150 | if (!Str || !Str->isAscii()) { |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3151 | Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 3152 | << "pcs" << 1; |
| 3153 | attr.setInvalid(); |
| 3154 | return true; |
| 3155 | } |
| 3156 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3157 | StringRef StrRef = Str->getString(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3158 | if (StrRef == "aapcs") { |
| 3159 | CC = CC_AAPCS; |
| 3160 | break; |
| 3161 | } else if (StrRef == "aapcs-vfp") { |
| 3162 | CC = CC_AAPCS_VFP; |
| 3163 | break; |
| 3164 | } |
| 3165 | // FALLS THROUGH |
| 3166 | } |
David Blaikie | 7530c03 | 2012-01-17 06:56:22 +0000 | [diff] [blame] | 3167 | default: llvm_unreachable("unexpected attribute kind"); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3168 | } |
| 3169 | |
| 3170 | return false; |
| 3171 | } |
| 3172 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3173 | static void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3174 | if (hasDeclarator(D)) return; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3175 | |
| 3176 | unsigned numParams; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3177 | if (S.CheckRegparmAttr(Attr, numParams)) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3178 | return; |
| 3179 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3180 | if (!isa<ObjCMethodDecl>(D)) { |
| 3181 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 3182 | << Attr.getName() << ExpectedFunctionOrMethod; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3183 | return; |
| 3184 | } |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3185 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3186 | D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3187 | } |
| 3188 | |
| 3189 | /// Checks a regparm attribute, returning true if it is ill-formed and |
| 3190 | /// otherwise setting numParams to the appropriate value. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3191 | bool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { |
| 3192 | if (Attr.isInvalid()) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3193 | return true; |
| 3194 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3195 | if (Attr.getNumArgs() != 1) { |
| 3196 | Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 3197 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3198 | return true; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3199 | } |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3200 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3201 | Expr *NumParamsExpr = Attr.getArg(0); |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3202 | llvm::APSInt NumParams(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 3203 | if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3204 | !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3205 | Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3206 | << "regparm" << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3207 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3208 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3209 | } |
| 3210 | |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3211 | if (Context.getTargetInfo().getRegParmMax() == 0) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3212 | Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3213 | << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3214 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3215 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3216 | } |
| 3217 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3218 | numParams = NumParams.getZExtValue(); |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3219 | if (numParams > Context.getTargetInfo().getRegParmMax()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3220 | Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3221 | << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3222 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3223 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3224 | } |
| 3225 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3226 | return false; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3227 | } |
| 3228 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3229 | static void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3230 | if (S.LangOpts.CUDA) { |
| 3231 | // check the attribute arguments. |
| 3232 | if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 3233 | // FIXME: 0 is not okay. |
| 3234 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3235 | return; |
| 3236 | } |
| 3237 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3238 | if (!isFunctionOrMethod(D)) { |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3239 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3240 | << Attr.getName() << ExpectedFunctionOrMethod; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3241 | return; |
| 3242 | } |
| 3243 | |
| 3244 | Expr *MaxThreadsExpr = Attr.getArg(0); |
| 3245 | llvm::APSInt MaxThreads(32); |
| 3246 | if (MaxThreadsExpr->isTypeDependent() || |
| 3247 | MaxThreadsExpr->isValueDependent() || |
| 3248 | !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { |
| 3249 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 3250 | << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); |
| 3251 | return; |
| 3252 | } |
| 3253 | |
| 3254 | llvm::APSInt MinBlocks(32); |
| 3255 | if (Attr.getNumArgs() > 1) { |
| 3256 | Expr *MinBlocksExpr = Attr.getArg(1); |
| 3257 | if (MinBlocksExpr->isTypeDependent() || |
| 3258 | MinBlocksExpr->isValueDependent() || |
| 3259 | !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { |
| 3260 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 3261 | << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); |
| 3262 | return; |
| 3263 | } |
| 3264 | } |
| 3265 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3266 | D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3267 | MaxThreads.getZExtValue(), |
| 3268 | MinBlocks.getZExtValue())); |
| 3269 | } else { |
| 3270 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; |
| 3271 | } |
| 3272 | } |
| 3273 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3274 | //===----------------------------------------------------------------------===// |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3275 | // Checker-specific attribute handlers. |
| 3276 | //===----------------------------------------------------------------------===// |
| 3277 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3278 | static bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { |
Douglas Gregor | 6c73a29 | 2011-10-09 22:26:49 +0000 | [diff] [blame] | 3279 | return type->isDependentType() || |
| 3280 | type->isObjCObjectPointerType() || |
| 3281 | S.Context.isObjCNSObjectType(type); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3282 | } |
| 3283 | static bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { |
Douglas Gregor | 6c73a29 | 2011-10-09 22:26:49 +0000 | [diff] [blame] | 3284 | return type->isDependentType() || |
| 3285 | type->isPointerType() || |
| 3286 | isValidSubjectOfNSAttribute(S, type); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3287 | } |
| 3288 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3289 | static void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3290 | ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3291 | if (!param) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3292 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3293 | << Attr.getRange() << Attr.getName() << ExpectedParameter; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3294 | return; |
| 3295 | } |
| 3296 | |
| 3297 | bool typeOK, cf; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3298 | if (Attr.getKind() == AttributeList::AT_ns_consumed) { |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3299 | typeOK = isValidSubjectOfNSAttribute(S, param->getType()); |
| 3300 | cf = false; |
| 3301 | } else { |
| 3302 | typeOK = isValidSubjectOfCFAttribute(S, param->getType()); |
| 3303 | cf = true; |
| 3304 | } |
| 3305 | |
| 3306 | if (!typeOK) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3307 | S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3308 | << Attr.getRange() << Attr.getName() << cf; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3309 | return; |
| 3310 | } |
| 3311 | |
| 3312 | if (cf) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3313 | param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3314 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3315 | param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3316 | } |
| 3317 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3318 | static void handleNSConsumesSelfAttr(Sema &S, Decl *D, |
| 3319 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3320 | if (!isa<ObjCMethodDecl>(D)) { |
| 3321 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3322 | << Attr.getRange() << Attr.getName() << ExpectedMethod; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3323 | return; |
| 3324 | } |
| 3325 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3326 | D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3327 | } |
| 3328 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3329 | static void handleNSReturnsRetainedAttr(Sema &S, Decl *D, |
| 3330 | const AttributeList &Attr) { |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3331 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3332 | QualType returnType; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3333 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3334 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3335 | returnType = MD->getResultType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3336 | else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) |
Fariborz Jahanian | 831fb96 | 2011-06-25 00:17:46 +0000 | [diff] [blame] | 3337 | returnType = PD->getType(); |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3338 | else if (S.getLangOpts().ObjCAutoRefCount && hasDeclarator(D) && |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3339 | (Attr.getKind() == AttributeList::AT_ns_returns_retained)) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3340 | return; // ignore: was handled as a type attribute |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3341 | else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3342 | returnType = FD->getResultType(); |
Ted Kremenek | 5dc53c9 | 2009-05-13 21:07:32 +0000 | [diff] [blame] | 3343 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3344 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3345 | << Attr.getRange() << Attr.getName() |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3346 | << ExpectedFunctionOrMethod; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3347 | return; |
| 3348 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3349 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3350 | bool typeOK; |
| 3351 | bool cf; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3352 | switch (Attr.getKind()) { |
David Blaikie | 7530c03 | 2012-01-17 06:56:22 +0000 | [diff] [blame] | 3353 | default: llvm_unreachable("invalid ownership attribute"); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3354 | case AttributeList::AT_ns_returns_autoreleased: |
| 3355 | case AttributeList::AT_ns_returns_retained: |
| 3356 | case AttributeList::AT_ns_returns_not_retained: |
| 3357 | typeOK = isValidSubjectOfNSAttribute(S, returnType); |
| 3358 | cf = false; |
| 3359 | break; |
| 3360 | |
| 3361 | case AttributeList::AT_cf_returns_retained: |
| 3362 | case AttributeList::AT_cf_returns_not_retained: |
| 3363 | typeOK = isValidSubjectOfCFAttribute(S, returnType); |
| 3364 | cf = true; |
| 3365 | break; |
| 3366 | } |
| 3367 | |
| 3368 | if (!typeOK) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3369 | S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3370 | << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3371 | return; |
Ted Kremenek | 5dc53c9 | 2009-05-13 21:07:32 +0000 | [diff] [blame] | 3372 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3373 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3374 | switch (Attr.getKind()) { |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3375 | default: |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 3376 | llvm_unreachable("invalid ownership attribute"); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3377 | case AttributeList::AT_ns_returns_autoreleased: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3378 | D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3379 | S.Context)); |
| 3380 | return; |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3381 | case AttributeList::AT_cf_returns_not_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3382 | D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3383 | S.Context)); |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3384 | return; |
| 3385 | case AttributeList::AT_ns_returns_not_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3386 | D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3387 | S.Context)); |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3388 | return; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3389 | case AttributeList::AT_cf_returns_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3390 | D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3391 | S.Context)); |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3392 | return; |
| 3393 | case AttributeList::AT_ns_returns_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3394 | D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3395 | S.Context)); |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3396 | return; |
| 3397 | }; |
| 3398 | } |
| 3399 | |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3400 | static void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, |
| 3401 | const AttributeList &attr) { |
| 3402 | SourceLocation loc = attr.getLoc(); |
| 3403 | |
| 3404 | ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); |
| 3405 | |
Fariborz Jahanian | 94d55d7 | 2012-04-21 17:51:44 +0000 | [diff] [blame] | 3406 | if (!method) { |
Fariborz Jahanian | 0e78afb | 2012-04-20 22:00:46 +0000 | [diff] [blame] | 3407 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3408 | << SourceRange(loc, loc) << attr.getName() << ExpectedMethod; |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3409 | return; |
| 3410 | } |
| 3411 | |
| 3412 | // Check that the method returns a normal pointer. |
| 3413 | QualType resultType = method->getResultType(); |
Fariborz Jahanian | f2e5945 | 2011-09-30 20:50:23 +0000 | [diff] [blame] | 3414 | |
| 3415 | if (!resultType->isReferenceType() && |
| 3416 | (!resultType->isPointerType() || resultType->isObjCRetainableType())) { |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3417 | S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) |
| 3418 | << SourceRange(loc) |
| 3419 | << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; |
| 3420 | |
| 3421 | // Drop the attribute. |
| 3422 | return; |
| 3423 | } |
| 3424 | |
| 3425 | method->addAttr( |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3426 | ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3427 | } |
| 3428 | |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3429 | /// Handle cf_audited_transfer and cf_unknown_transfer. |
| 3430 | static void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { |
| 3431 | if (!isa<FunctionDecl>(D)) { |
| 3432 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3433 | << A.getRange() << A.getName() << ExpectedFunction; |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3434 | return; |
| 3435 | } |
| 3436 | |
| 3437 | bool IsAudited = (A.getKind() == AttributeList::AT_cf_audited_transfer); |
| 3438 | |
| 3439 | // Check whether there's a conflicting attribute already present. |
| 3440 | Attr *Existing; |
| 3441 | if (IsAudited) { |
| 3442 | Existing = D->getAttr<CFUnknownTransferAttr>(); |
| 3443 | } else { |
| 3444 | Existing = D->getAttr<CFAuditedTransferAttr>(); |
| 3445 | } |
| 3446 | if (Existing) { |
| 3447 | S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) |
| 3448 | << A.getName() |
| 3449 | << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") |
| 3450 | << A.getRange() << Existing->getRange(); |
| 3451 | return; |
| 3452 | } |
| 3453 | |
| 3454 | // All clear; add the attribute. |
| 3455 | if (IsAudited) { |
| 3456 | D->addAttr( |
| 3457 | ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); |
| 3458 | } else { |
| 3459 | D->addAttr( |
| 3460 | ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); |
| 3461 | } |
| 3462 | } |
| 3463 | |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3464 | static void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, |
| 3465 | const AttributeList &Attr) { |
| 3466 | RecordDecl *RD = dyn_cast<RecordDecl>(D); |
| 3467 | if (!RD || RD->isUnion()) { |
| 3468 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3469 | << Attr.getRange() << Attr.getName() << ExpectedStruct; |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3470 | } |
| 3471 | |
| 3472 | IdentifierInfo *ParmName = Attr.getParameterName(); |
| 3473 | |
| 3474 | // In Objective-C, verify that the type names an Objective-C type. |
| 3475 | // We don't want to check this outside of ObjC because people sometimes |
| 3476 | // do crazy C declarations of Objective-C types. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3477 | if (ParmName && S.getLangOpts().ObjC1) { |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3478 | // Check for an existing type with this name. |
| 3479 | LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), |
| 3480 | Sema::LookupOrdinaryName); |
| 3481 | if (S.LookupName(R, Sc)) { |
| 3482 | NamedDecl *Target = R.getFoundDecl(); |
| 3483 | if (Target && !isa<ObjCInterfaceDecl>(Target)) { |
| 3484 | S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); |
| 3485 | S.Diag(Target->getLocStart(), diag::note_declared_at); |
| 3486 | } |
| 3487 | } |
| 3488 | } |
| 3489 | |
| 3490 | D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, |
| 3491 | ParmName)); |
| 3492 | } |
| 3493 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3494 | static void handleObjCOwnershipAttr(Sema &S, Decl *D, |
| 3495 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3496 | if (hasDeclarator(D)) return; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3497 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3498 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3499 | << Attr.getRange() << Attr.getName() << ExpectedVariable; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3500 | } |
| 3501 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3502 | static void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, |
| 3503 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3504 | if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3505 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3506 | << Attr.getRange() << Attr.getName() << ExpectedVariable; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3507 | return; |
| 3508 | } |
| 3509 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3510 | ValueDecl *vd = cast<ValueDecl>(D); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3511 | QualType type = vd->getType(); |
| 3512 | |
| 3513 | if (!type->isDependentType() && |
| 3514 | !type->isObjCLifetimeType()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3515 | S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3516 | << type; |
| 3517 | return; |
| 3518 | } |
| 3519 | |
| 3520 | Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); |
| 3521 | |
| 3522 | // If we have no lifetime yet, check the lifetime we're presumably |
| 3523 | // going to infer. |
| 3524 | if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) |
| 3525 | lifetime = type->getObjCARCImplicitLifetime(); |
| 3526 | |
| 3527 | switch (lifetime) { |
| 3528 | case Qualifiers::OCL_None: |
| 3529 | assert(type->isDependentType() && |
| 3530 | "didn't infer lifetime for non-dependent type?"); |
| 3531 | break; |
| 3532 | |
| 3533 | case Qualifiers::OCL_Weak: // meaningful |
| 3534 | case Qualifiers::OCL_Strong: // meaningful |
| 3535 | break; |
| 3536 | |
| 3537 | case Qualifiers::OCL_ExplicitNone: |
| 3538 | case Qualifiers::OCL_Autoreleasing: |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3539 | S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3540 | << (lifetime == Qualifiers::OCL_Autoreleasing); |
| 3541 | break; |
| 3542 | } |
| 3543 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3544 | D->addAttr(::new (S.Context) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3545 | ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3546 | } |
| 3547 | |
Charles Davis | f0122fe | 2010-02-16 18:27:26 +0000 | [diff] [blame] | 3548 | static bool isKnownDeclSpecAttr(const AttributeList &Attr) { |
Aaron Ballman | 9428772 | 2012-02-23 22:46:33 +0000 | [diff] [blame] | 3549 | switch (Attr.getKind()) { |
| 3550 | default: |
| 3551 | return false; |
| 3552 | case AttributeList::AT_dllimport: |
| 3553 | case AttributeList::AT_dllexport: |
| 3554 | case AttributeList::AT_uuid: |
| 3555 | case AttributeList::AT_deprecated: |
| 3556 | case AttributeList::AT_noreturn: |
| 3557 | case AttributeList::AT_nothrow: |
| 3558 | case AttributeList::AT_naked: |
| 3559 | case AttributeList::AT_noinline: |
| 3560 | return true; |
| 3561 | } |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3562 | } |
| 3563 | |
| 3564 | //===----------------------------------------------------------------------===// |
| 3565 | // Microsoft specific attribute handlers. |
| 3566 | //===----------------------------------------------------------------------===// |
| 3567 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3568 | static void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Francois Pichet | 62ec1f2 | 2011-09-17 17:15:52 +0000 | [diff] [blame] | 3569 | if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3570 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3571 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3572 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3573 | |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3574 | Expr *Arg = Attr.getArg(0); |
| 3575 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3576 | if (!Str || !Str->isAscii()) { |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3577 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 3578 | << "uuid" << 1; |
| 3579 | return; |
| 3580 | } |
| 3581 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3582 | StringRef StrRef = Str->getString(); |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3583 | |
| 3584 | bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && |
| 3585 | StrRef.back() == '}'; |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3586 | |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3587 | // Validate GUID length. |
| 3588 | if (IsCurly && StrRef.size() != 38) { |
| 3589 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3590 | return; |
| 3591 | } |
| 3592 | if (!IsCurly && StrRef.size() != 36) { |
| 3593 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3594 | return; |
| 3595 | } |
| 3596 | |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3597 | // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3598 | // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3599 | StringRef::iterator I = StrRef.begin(); |
Anders Carlsson | f89e042 | 2011-01-23 21:07:30 +0000 | [diff] [blame] | 3600 | if (IsCurly) // Skip the optional '{' |
| 3601 | ++I; |
| 3602 | |
| 3603 | for (int i = 0; i < 36; ++i) { |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3604 | if (i == 8 || i == 13 || i == 18 || i == 23) { |
| 3605 | if (*I != '-') { |
| 3606 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3607 | return; |
| 3608 | } |
| 3609 | } else if (!isxdigit(*I)) { |
| 3610 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3611 | return; |
| 3612 | } |
| 3613 | I++; |
| 3614 | } |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3615 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3616 | D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3617 | Str->getString())); |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3618 | } else |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3619 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; |
Charles Davis | f0122fe | 2010-02-16 18:27:26 +0000 | [diff] [blame] | 3620 | } |
| 3621 | |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3622 | //===----------------------------------------------------------------------===// |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3623 | // Top Level Sema Entry Points |
| 3624 | //===----------------------------------------------------------------------===// |
| 3625 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3626 | static void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, |
| 3627 | const AttributeList &Attr) { |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3628 | switch (Attr.getKind()) { |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3629 | case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; |
| 3630 | case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; |
| 3631 | case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3632 | default: |
| 3633 | break; |
| 3634 | } |
| 3635 | } |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3636 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3637 | static void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, |
| 3638 | const AttributeList &Attr) { |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3639 | switch (Attr.getKind()) { |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3640 | case AttributeList::AT_ibaction: handleIBAction(S, D, Attr); break; |
| 3641 | case AttributeList::AT_iboutlet: handleIBOutlet(S, D, Attr); break; |
| 3642 | case AttributeList::AT_iboutletcollection: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3643 | handleIBOutletCollection(S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3644 | case AttributeList::AT_address_space: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 3645 | case AttributeList::AT_opencl_image_access: |
Fariborz Jahanian | ba372b8 | 2009-02-18 17:52:36 +0000 | [diff] [blame] | 3646 | case AttributeList::AT_objc_gc: |
John Thompson | 6e132aa | 2009-12-04 21:51:28 +0000 | [diff] [blame] | 3647 | case AttributeList::AT_vector_size: |
Bob Wilson | 4211bb6 | 2010-11-16 00:32:24 +0000 | [diff] [blame] | 3648 | case AttributeList::AT_neon_vector_type: |
| 3649 | case AttributeList::AT_neon_polyvector_type: |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3650 | // Ignore these, these are type attributes, handled by |
| 3651 | // ProcessTypeAttributes. |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3652 | break; |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3653 | case AttributeList::AT_device: |
| 3654 | case AttributeList::AT_host: |
| 3655 | case AttributeList::AT_overloadable: |
| 3656 | // Ignore, this is a non-inheritable attribute, handled |
| 3657 | // by ProcessNonInheritableDeclAttr. |
| 3658 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3659 | case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; |
| 3660 | case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3661 | case AttributeList::AT_always_inline: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3662 | handleAlwaysInlineAttr (S, D, Attr); break; |
Ted Kremenek | b725232 | 2009-04-10 00:01:14 +0000 | [diff] [blame] | 3663 | case AttributeList::AT_analyzer_noreturn: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3664 | handleAnalyzerNoReturnAttr (S, D, Attr); break; |
| 3665 | case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; |
| 3666 | case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 3667 | case AttributeList::AT_carries_dependency: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3668 | handleDependencyAttr (S, D, Attr); break; |
| 3669 | case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; |
| 3670 | case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; |
| 3671 | case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; |
| 3672 | case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; |
| 3673 | case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3674 | case AttributeList::AT_ext_vector_type: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3675 | handleExtVectorTypeAttr(S, scope, D, Attr); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3676 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3677 | case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; |
| 3678 | case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; |
| 3679 | case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; |
| 3680 | case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3681 | case AttributeList::AT_launch_bounds: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3682 | handleLaunchBoundsAttr(S, D, Attr); |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3683 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3684 | case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; |
| 3685 | case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; |
| 3686 | case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; |
| 3687 | case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; |
| 3688 | case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 3689 | case AttributeList::AT_ownership_returns: |
| 3690 | case AttributeList::AT_ownership_takes: |
| 3691 | case AttributeList::AT_ownership_holds: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3692 | handleOwnershipAttr (S, D, Attr); break; |
| 3693 | case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; |
| 3694 | case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; |
| 3695 | case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; |
| 3696 | case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; |
| 3697 | case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3698 | |
Argyrios Kyrtzidis | b8b0313 | 2011-06-24 00:08:59 +0000 | [diff] [blame] | 3699 | case AttributeList::AT_objc_ownership: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3700 | handleObjCOwnershipAttr(S, D, Attr); break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3701 | case AttributeList::AT_objc_precise_lifetime: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3702 | handleObjCPreciseLifetimeAttr(S, D, Attr); break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3703 | |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3704 | case AttributeList::AT_objc_returns_inner_pointer: |
| 3705 | handleObjCReturnsInnerPointerAttr(S, D, Attr); break; |
| 3706 | |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3707 | case AttributeList::AT_ns_bridged: |
| 3708 | handleNSBridgedAttr(S, scope, D, Attr); break; |
| 3709 | |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3710 | case AttributeList::AT_cf_audited_transfer: |
| 3711 | case AttributeList::AT_cf_unknown_transfer: |
| 3712 | handleCFTransferAttr(S, D, Attr); break; |
| 3713 | |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3714 | // Checker-specific. |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3715 | case AttributeList::AT_cf_consumed: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3716 | case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3717 | case AttributeList::AT_ns_consumes_self: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3718 | handleNSConsumesSelfAttr(S, D, Attr); break; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3719 | |
| 3720 | case AttributeList::AT_ns_returns_autoreleased: |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3721 | case AttributeList::AT_ns_returns_not_retained: |
| 3722 | case AttributeList::AT_cf_returns_not_retained: |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3723 | case AttributeList::AT_ns_returns_retained: |
| 3724 | case AttributeList::AT_cf_returns_retained: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3725 | handleNSReturnsRetainedAttr(S, D, Attr); break; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3726 | |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3727 | case AttributeList::AT_reqd_work_group_size: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3728 | handleReqdWorkGroupSize(S, D, Attr); break; |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 3729 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 3730 | case AttributeList::AT_init_priority: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3731 | handleInitPriorityAttr(S, D, Attr); break; |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 3732 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3733 | case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3734 | case AttributeList::AT_ms_struct: handleMsStructAttr (S, D, Attr); break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3735 | case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; |
| 3736 | case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3737 | case AttributeList::AT_objc_arc_weak_reference_unavailable: |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 3738 | handleArcWeakrefUnavailableAttr (S, D, Attr); |
| 3739 | break; |
Patrick Beard | b2f6820 | 2012-04-06 18:12:22 +0000 | [diff] [blame] | 3740 | case AttributeList::AT_objc_root_class: |
| 3741 | handleObjCRootClassAttr(S, D, Attr); |
| 3742 | break; |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 3743 | case AttributeList::AT_objc_requires_property_definitions: |
| 3744 | handleObjCRequiresPropertyDefsAttr (S, D, Attr); |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 3745 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3746 | case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; |
Rafael Espindola | f87cced | 2011-10-03 14:59:42 +0000 | [diff] [blame] | 3747 | case AttributeList::AT_returns_twice: |
| 3748 | handleReturnsTwiceAttr(S, D, Attr); |
| 3749 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3750 | case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; |
| 3751 | case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; |
| 3752 | case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 3753 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3754 | case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; |
| 3755 | case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; |
| 3756 | case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3757 | case AttributeList::AT_transparent_union: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3758 | handleTransparentUnionAttr(S, D, Attr); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3759 | break; |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 3760 | case AttributeList::AT_objc_exception: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3761 | handleObjCExceptionAttr(S, D, Attr); |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 3762 | break; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 3763 | case AttributeList::AT_objc_method_family: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3764 | handleObjCMethodFamilyAttr(S, D, Attr); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 3765 | break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3766 | case AttributeList::AT_NSObject: handleObjCNSObject (S, D, Attr); break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3767 | case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; |
| 3768 | case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; |
| 3769 | case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; |
| 3770 | case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; |
| 3771 | case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; |
| 3772 | case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; |
| 3773 | case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; |
| 3774 | case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3775 | case AttributeList::IgnoredAttribute: |
Anders Carlsson | 05f8e47 | 2009-02-13 08:16:43 +0000 | [diff] [blame] | 3776 | // Just ignore |
| 3777 | break; |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 3778 | case AttributeList::AT_no_instrument_function: // Interacts with -pg. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3779 | handleNoInstrumentFunctionAttr(S, D, Attr); |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 3780 | break; |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 3781 | case AttributeList::AT_stdcall: |
| 3782 | case AttributeList::AT_cdecl: |
| 3783 | case AttributeList::AT_fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 3784 | case AttributeList::AT_thiscall: |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3785 | case AttributeList::AT_pascal: |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3786 | case AttributeList::AT_pcs: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3787 | handleCallConvAttr(S, D, Attr); |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 3788 | break; |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3789 | case AttributeList::AT_opencl_kernel_function: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3790 | handleOpenCLKernelAttr(S, D, Attr); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3791 | break; |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3792 | case AttributeList::AT_uuid: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3793 | handleUuidAttr(S, D, Attr); |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3794 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3795 | |
| 3796 | // Thread safety attributes: |
| 3797 | case AttributeList::AT_guarded_var: |
| 3798 | handleGuardedVarAttr(S, D, Attr); |
| 3799 | break; |
| 3800 | case AttributeList::AT_pt_guarded_var: |
| 3801 | handleGuardedVarAttr(S, D, Attr, /*pointer = */true); |
| 3802 | break; |
| 3803 | case AttributeList::AT_scoped_lockable: |
| 3804 | handleLockableAttr(S, D, Attr, /*scoped = */true); |
| 3805 | break; |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 3806 | case AttributeList::AT_no_address_safety_analysis: |
| 3807 | handleNoAddressSafetyAttr(S, D, Attr); |
| 3808 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3809 | case AttributeList::AT_no_thread_safety_analysis: |
| 3810 | handleNoThreadSafetyAttr(S, D, Attr); |
| 3811 | break; |
| 3812 | case AttributeList::AT_lockable: |
| 3813 | handleLockableAttr(S, D, Attr); |
| 3814 | break; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 3815 | case AttributeList::AT_guarded_by: |
| 3816 | handleGuardedByAttr(S, D, Attr); |
| 3817 | break; |
| 3818 | case AttributeList::AT_pt_guarded_by: |
| 3819 | handleGuardedByAttr(S, D, Attr, /*pointer = */true); |
| 3820 | break; |
| 3821 | case AttributeList::AT_exclusive_lock_function: |
| 3822 | handleLockFunAttr(S, D, Attr, /*exclusive = */true); |
| 3823 | break; |
| 3824 | case AttributeList::AT_exclusive_locks_required: |
| 3825 | handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); |
| 3826 | break; |
| 3827 | case AttributeList::AT_exclusive_trylock_function: |
| 3828 | handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); |
| 3829 | break; |
| 3830 | case AttributeList::AT_lock_returned: |
| 3831 | handleLockReturnedAttr(S, D, Attr); |
| 3832 | break; |
| 3833 | case AttributeList::AT_locks_excluded: |
| 3834 | handleLocksExcludedAttr(S, D, Attr); |
| 3835 | break; |
| 3836 | case AttributeList::AT_shared_lock_function: |
| 3837 | handleLockFunAttr(S, D, Attr); |
| 3838 | break; |
| 3839 | case AttributeList::AT_shared_locks_required: |
| 3840 | handleLocksRequiredAttr(S, D, Attr); |
| 3841 | break; |
| 3842 | case AttributeList::AT_shared_trylock_function: |
| 3843 | handleTrylockFunAttr(S, D, Attr); |
| 3844 | break; |
| 3845 | case AttributeList::AT_unlock_function: |
| 3846 | handleUnlockFunAttr(S, D, Attr); |
| 3847 | break; |
| 3848 | case AttributeList::AT_acquired_before: |
| 3849 | handleAcquireOrderAttr(S, D, Attr, /*before = */true); |
| 3850 | break; |
| 3851 | case AttributeList::AT_acquired_after: |
| 3852 | handleAcquireOrderAttr(S, D, Attr, /*before = */false); |
| 3853 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3854 | |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3855 | default: |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 3856 | // Ask target about the attribute. |
| 3857 | const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); |
| 3858 | if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) |
Chandler Carruth | 7d5c45e | 2010-07-08 09:42:26 +0000 | [diff] [blame] | 3859 | S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) |
| 3860 | << Attr.getName(); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3861 | break; |
| 3862 | } |
| 3863 | } |
| 3864 | |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3865 | /// ProcessDeclAttribute - Apply the specific attribute to the specified decl if |
| 3866 | /// the attribute applies to decls. If the attribute is a type attribute, just |
| 3867 | /// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to |
| 3868 | /// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3869 | static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, |
| 3870 | const AttributeList &Attr, |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3871 | bool NonInheritable, bool Inheritable) { |
| 3872 | if (Attr.isInvalid()) |
| 3873 | return; |
| 3874 | |
| 3875 | if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) |
| 3876 | // FIXME: Try to deal with other __declspec attributes! |
| 3877 | return; |
| 3878 | |
| 3879 | if (NonInheritable) |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3880 | ProcessNonInheritableDeclAttr(S, scope, D, Attr); |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3881 | |
| 3882 | if (Inheritable) |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3883 | ProcessInheritableDeclAttr(S, scope, D, Attr); |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3884 | } |
| 3885 | |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3886 | /// ProcessDeclAttributeList - Apply all the decl attributes in the specified |
| 3887 | /// attribute list to the specified decl, ignoring any type attributes. |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3888 | void Sema::ProcessDeclAttributeList(Scope *S, Decl *D, |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3889 | const AttributeList *AttrList, |
| 3890 | bool NonInheritable, bool Inheritable) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3891 | for (const AttributeList* l = AttrList; l; l = l->getNext()) { |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3892 | ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3893 | } |
| 3894 | |
| 3895 | // GCC accepts |
| 3896 | // static int a9 __attribute__((weakref)); |
| 3897 | // but that looks really pointless. We reject it. |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3898 | if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3899 | Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 3900 | dyn_cast<NamedDecl>(D)->getNameAsString(); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3901 | return; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3902 | } |
| 3903 | } |
| 3904 | |
Erik Verbruggen | 5f1c822 | 2011-10-13 09:41:32 +0000 | [diff] [blame] | 3905 | // Annotation attributes are the only attributes allowed after an access |
| 3906 | // specifier. |
| 3907 | bool Sema::ProcessAccessDeclAttributeList(AccessSpecDecl *ASDecl, |
| 3908 | const AttributeList *AttrList) { |
| 3909 | for (const AttributeList* l = AttrList; l; l = l->getNext()) { |
| 3910 | if (l->getKind() == AttributeList::AT_annotate) { |
| 3911 | handleAnnotateAttr(*this, ASDecl, *l); |
| 3912 | } else { |
| 3913 | Diag(l->getLoc(), diag::err_only_annotate_after_access_spec); |
| 3914 | return true; |
| 3915 | } |
| 3916 | } |
| 3917 | |
| 3918 | return false; |
| 3919 | } |
| 3920 | |
John McCall | e82247a | 2011-10-01 05:17:03 +0000 | [diff] [blame] | 3921 | /// checkUnusedDeclAttributes - Check a list of attributes to see if it |
| 3922 | /// contains any decl attributes that we should warn about. |
| 3923 | static void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { |
| 3924 | for ( ; A; A = A->getNext()) { |
| 3925 | // Only warn if the attribute is an unignored, non-type attribute. |
| 3926 | if (A->isUsedAsTypeAttr()) continue; |
| 3927 | if (A->getKind() == AttributeList::IgnoredAttribute) continue; |
| 3928 | |
| 3929 | if (A->getKind() == AttributeList::UnknownAttribute) { |
| 3930 | S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) |
| 3931 | << A->getName() << A->getRange(); |
| 3932 | } else { |
| 3933 | S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) |
| 3934 | << A->getName() << A->getRange(); |
| 3935 | } |
| 3936 | } |
| 3937 | } |
| 3938 | |
| 3939 | /// checkUnusedDeclAttributes - Given a declarator which is not being |
| 3940 | /// used to build a declaration, complain about any decl attributes |
| 3941 | /// which might be lying around on it. |
| 3942 | void Sema::checkUnusedDeclAttributes(Declarator &D) { |
| 3943 | ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); |
| 3944 | ::checkUnusedDeclAttributes(*this, D.getAttributes()); |
| 3945 | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) |
| 3946 | ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); |
| 3947 | } |
| 3948 | |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3949 | /// DeclClonePragmaWeak - clone existing decl (maybe definition), |
| 3950 | /// #pragma weak needs a non-definition decl and source may not have one |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3951 | NamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, |
| 3952 | SourceLocation Loc) { |
Ryan Flynn | 7b1fdbd | 2009-07-31 02:52:19 +0000 | [diff] [blame] | 3953 | assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3954 | NamedDecl *NewD = 0; |
| 3955 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3956 | FunctionDecl *NewFD; |
| 3957 | // FIXME: Missing call to CheckFunctionDeclaration(). |
| 3958 | // FIXME: Mangling? |
| 3959 | // FIXME: Is the qualifier info correct? |
| 3960 | // FIXME: Is the DeclContext correct? |
| 3961 | NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), |
| 3962 | Loc, Loc, DeclarationName(II), |
| 3963 | FD->getType(), FD->getTypeSourceInfo(), |
| 3964 | SC_None, SC_None, |
| 3965 | false/*isInlineSpecified*/, |
| 3966 | FD->hasPrototype(), |
| 3967 | false/*isConstexprSpecified*/); |
| 3968 | NewD = NewFD; |
| 3969 | |
| 3970 | if (FD->getQualifier()) |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 3971 | NewFD->setQualifierInfo(FD->getQualifierLoc()); |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3972 | |
| 3973 | // Fake up parameter variables; they are declared as if this were |
| 3974 | // a typedef. |
| 3975 | QualType FDTy = FD->getType(); |
| 3976 | if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { |
| 3977 | SmallVector<ParmVarDecl*, 16> Params; |
| 3978 | for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), |
| 3979 | AE = FT->arg_type_end(); AI != AE; ++AI) { |
| 3980 | ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); |
| 3981 | Param->setScopeInfo(0, Params.size()); |
| 3982 | Params.push_back(Param); |
| 3983 | } |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 3984 | NewFD->setParams(Params); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3985 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3986 | } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { |
| 3987 | NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 3988 | VD->getInnerLocStart(), VD->getLocation(), II, |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 3989 | VD->getType(), VD->getTypeSourceInfo(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 3990 | VD->getStorageClass(), |
| 3991 | VD->getStorageClassAsWritten()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3992 | if (VD->getQualifier()) { |
| 3993 | VarDecl *NewVD = cast<VarDecl>(NewD); |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 3994 | NewVD->setQualifierInfo(VD->getQualifierLoc()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3995 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3996 | } |
| 3997 | return NewD; |
| 3998 | } |
| 3999 | |
| 4000 | /// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak |
| 4001 | /// applied to it, possibly with an alias. |
Ryan Flynn | 7b1fdbd | 2009-07-31 02:52:19 +0000 | [diff] [blame] | 4002 | void Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { |
Chris Lattner | c4f1fb1 | 2009-09-08 18:10:11 +0000 | [diff] [blame] | 4003 | if (W.getUsed()) return; // only do this once |
| 4004 | W.setUsed(true); |
| 4005 | if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) |
| 4006 | IdentifierInfo *NDId = ND->getIdentifier(); |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 4007 | NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 4008 | NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, |
| 4009 | NDId->getName())); |
| 4010 | NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); |
Chris Lattner | c4f1fb1 | 2009-09-08 18:10:11 +0000 | [diff] [blame] | 4011 | WeakTopLevelDecl.push_back(NewD); |
| 4012 | // FIXME: "hideous" code from Sema::LazilyCreateBuiltin |
| 4013 | // to insert Decl at TU scope, sorry. |
| 4014 | DeclContext *SavedContext = CurContext; |
| 4015 | CurContext = Context.getTranslationUnitDecl(); |
| 4016 | PushOnScopeChains(NewD, S); |
| 4017 | CurContext = SavedContext; |
| 4018 | } else { // just add weak to existing |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 4019 | ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 4020 | } |
| 4021 | } |
| 4022 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4023 | /// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in |
| 4024 | /// it, apply them to D. This is a bit tricky because PD can have attributes |
| 4025 | /// specified in many different places, and we need to find and apply them all. |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4026 | void Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, |
| 4027 | bool NonInheritable, bool Inheritable) { |
John McCall | d4aff0e | 2010-10-27 00:59:00 +0000 | [diff] [blame] | 4028 | // It's valid to "forward-declare" #pragma weak, in which case we |
| 4029 | // have to do this. |
Douglas Gregor | 31e37b2 | 2011-07-28 18:09:57 +0000 | [diff] [blame] | 4030 | if (Inheritable) { |
| 4031 | LoadExternalWeakUndeclaredIdentifiers(); |
| 4032 | if (!WeakUndeclaredIdentifiers.empty()) { |
| 4033 | if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { |
| 4034 | if (IdentifierInfo *Id = ND->getIdentifier()) { |
| 4035 | llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I |
| 4036 | = WeakUndeclaredIdentifiers.find(Id); |
| 4037 | if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { |
| 4038 | WeakInfo W = I->second; |
| 4039 | DeclApplyPragmaWeak(S, ND, W); |
| 4040 | WeakUndeclaredIdentifiers[Id] = W; |
| 4041 | } |
John McCall | d4aff0e | 2010-10-27 00:59:00 +0000 | [diff] [blame] | 4042 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 4043 | } |
| 4044 | } |
| 4045 | } |
| 4046 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4047 | // Apply decl attributes from the DeclSpec if present. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 4048 | if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4049 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 4050 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4051 | // Walk the declarator structure, applying decl attributes that were in a type |
| 4052 | // position to the decl itself. This handles cases like: |
| 4053 | // int *__attr__(x)** D; |
| 4054 | // when X is a decl attribute. |
| 4055 | for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) |
| 4056 | if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4057 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 4058 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4059 | // Finally, apply any attributes on the decl itself. |
| 4060 | if (const AttributeList *Attrs = PD.getAttributes()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4061 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4062 | } |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4063 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4064 | /// Is the given declaration allowed to use a forbidden type? |
| 4065 | static bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { |
| 4066 | // Private ivars are always okay. Unfortunately, people don't |
| 4067 | // always properly make their ivars private, even in system headers. |
| 4068 | // Plus we need to make fields okay, too. |
Fariborz Jahanian | a6b3380 | 2011-09-26 21:23:35 +0000 | [diff] [blame] | 4069 | // Function declarations in sys headers will be marked unavailable. |
| 4070 | if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && |
| 4071 | !isa<FunctionDecl>(decl)) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4072 | return false; |
| 4073 | |
| 4074 | // Require it to be declared in a system header. |
| 4075 | return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); |
| 4076 | } |
| 4077 | |
| 4078 | /// Handle a delayed forbidden-type diagnostic. |
| 4079 | static void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, |
| 4080 | Decl *decl) { |
| 4081 | if (decl && isForbiddenTypeAllowed(S, decl)) { |
| 4082 | decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, |
| 4083 | "this system declaration uses an unsupported type")); |
| 4084 | return; |
| 4085 | } |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4086 | if (S.getLangOpts().ObjCAutoRefCount) |
Fariborz Jahanian | 175fb10 | 2011-10-03 22:11:57 +0000 | [diff] [blame] | 4087 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { |
| 4088 | // FIXME. we may want to supress diagnostics for all |
| 4089 | // kind of forbidden type messages on unavailable functions. |
| 4090 | if (FD->hasAttr<UnavailableAttr>() && |
| 4091 | diag.getForbiddenTypeDiagnostic() == |
| 4092 | diag::err_arc_array_param_no_ownership) { |
| 4093 | diag.Triggered = true; |
| 4094 | return; |
| 4095 | } |
| 4096 | } |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4097 | |
| 4098 | S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) |
| 4099 | << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); |
| 4100 | diag.Triggered = true; |
| 4101 | } |
| 4102 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4103 | // This duplicates a vector push_back but hides the need to know the |
| 4104 | // size of the type. |
| 4105 | void Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { |
| 4106 | assert(StackSize <= StackCapacity); |
| 4107 | |
| 4108 | // Grow the stack if necessary. |
| 4109 | if (StackSize == StackCapacity) { |
| 4110 | unsigned newCapacity = 2 * StackCapacity + 2; |
| 4111 | char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; |
| 4112 | const char *oldBuffer = (const char*) Stack; |
| 4113 | |
| 4114 | if (StackCapacity) |
| 4115 | memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); |
| 4116 | |
| 4117 | delete[] oldBuffer; |
| 4118 | Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); |
| 4119 | StackCapacity = newCapacity; |
| 4120 | } |
| 4121 | |
| 4122 | assert(StackSize < StackCapacity); |
| 4123 | new (&Stack[StackSize++]) DelayedDiagnostic(diag); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4124 | } |
| 4125 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4126 | void Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, |
| 4127 | Decl *decl) { |
| 4128 | DelayedDiagnostics &DD = S.DelayedDiagnostics; |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4129 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4130 | // Check the invariants. |
| 4131 | assert(DD.StackSize >= state.SavedStackSize); |
| 4132 | assert(state.SavedStackSize >= DD.ActiveStackBase); |
| 4133 | assert(DD.ParsingDepth > 0); |
| 4134 | |
| 4135 | // Drop the parsing depth. |
| 4136 | DD.ParsingDepth--; |
| 4137 | |
| 4138 | // If there are no active diagnostics, we're done. |
| 4139 | if (DD.StackSize == DD.ActiveStackBase) |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4140 | return; |
| 4141 | |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4142 | // We only want to actually emit delayed diagnostics when we |
| 4143 | // successfully parsed a decl. |
John McCall | e8c904f | 2012-01-26 20:04:03 +0000 | [diff] [blame] | 4144 | if (decl) { |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4145 | // We emit all the active diagnostics, not just those starting |
| 4146 | // from the saved state. The idea is this: we get one push for a |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4147 | // decl spec and another for each declarator; in a decl group like: |
| 4148 | // deprecated_typedef foo, *bar, baz(); |
| 4149 | // only the declarator pops will be passed decls. This is correct; |
| 4150 | // we really do need to consider delayed diagnostics from the decl spec |
| 4151 | // for each of the different declarations. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4152 | for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { |
| 4153 | DelayedDiagnostic &diag = DD.Stack[i]; |
| 4154 | if (diag.Triggered) |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4155 | continue; |
| 4156 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4157 | switch (diag.Kind) { |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4158 | case DelayedDiagnostic::Deprecation: |
John McCall | e8c904f | 2012-01-26 20:04:03 +0000 | [diff] [blame] | 4159 | // Don't bother giving deprecation diagnostics if the decl is invalid. |
| 4160 | if (!decl->isInvalidDecl()) |
| 4161 | S.HandleDelayedDeprecationCheck(diag, decl); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4162 | break; |
| 4163 | |
| 4164 | case DelayedDiagnostic::Access: |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4165 | S.HandleDelayedAccessCheck(diag, decl); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4166 | break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4167 | |
| 4168 | case DelayedDiagnostic::ForbiddenType: |
| 4169 | handleDelayedForbiddenType(S, diag, decl); |
| 4170 | break; |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4171 | } |
| 4172 | } |
| 4173 | } |
| 4174 | |
John McCall | 58e6f34 | 2010-03-16 05:22:47 +0000 | [diff] [blame] | 4175 | // Destroy all the delayed diagnostics we're about to pop off. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4176 | for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) |
Douglas Gregor | 2923380 | 2011-03-23 15:13:44 +0000 | [diff] [blame] | 4177 | DD.Stack[i].Destroy(); |
John McCall | 58e6f34 | 2010-03-16 05:22:47 +0000 | [diff] [blame] | 4178 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4179 | DD.StackSize = state.SavedStackSize; |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4180 | } |
| 4181 | |
| 4182 | static bool isDeclDeprecated(Decl *D) { |
| 4183 | do { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 4184 | if (D->isDeprecated()) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4185 | return true; |
Argyrios Kyrtzidis | c076e37 | 2011-10-06 23:23:27 +0000 | [diff] [blame] | 4186 | // A category implicitly has the availability of the interface. |
| 4187 | if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) |
| 4188 | return CatD->getClassInterface()->isDeprecated(); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4189 | } while ((D = cast_or_null<Decl>(D->getDeclContext()))); |
| 4190 | return false; |
| 4191 | } |
| 4192 | |
John McCall | 9c3087b | 2010-08-26 02:13:20 +0000 | [diff] [blame] | 4193 | void Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4194 | Decl *Ctx) { |
| 4195 | if (isDeclDeprecated(Ctx)) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4196 | return; |
| 4197 | |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4198 | DD.Triggered = true; |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4199 | if (!DD.getDeprecationMessage().empty()) |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4200 | Diag(DD.Loc, diag::warn_deprecated_message) |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4201 | << DD.getDeprecationDecl()->getDeclName() |
| 4202 | << DD.getDeprecationMessage(); |
Fariborz Jahanian | b0a6615 | 2012-03-02 21:50:02 +0000 | [diff] [blame] | 4203 | else if (DD.getUnknownObjCClass()) { |
| 4204 | Diag(DD.Loc, diag::warn_deprecated_fwdclass_message) |
| 4205 | << DD.getDeprecationDecl()->getDeclName(); |
| 4206 | Diag(DD.getUnknownObjCClass()->getLocation(), diag::note_forward_class); |
| 4207 | } |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4208 | else |
| 4209 | Diag(DD.Loc, diag::warn_deprecated) |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4210 | << DD.getDeprecationDecl()->getDeclName(); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4211 | } |
| 4212 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 4213 | void Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4214 | SourceLocation Loc, |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4215 | const ObjCInterfaceDecl *UnknownObjCClass) { |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4216 | // Delay if we're currently parsing a declaration. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4217 | if (DelayedDiagnostics.shouldDelayDiagnostics()) { |
Fariborz Jahanian | b0a6615 | 2012-03-02 21:50:02 +0000 | [diff] [blame] | 4218 | DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, |
| 4219 | UnknownObjCClass, |
| 4220 | Message)); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4221 | return; |
| 4222 | } |
| 4223 | |
| 4224 | // Otherwise, don't warn if our current context is deprecated. |
Argyrios Kyrtzidis | 3a38744 | 2011-10-06 23:23:20 +0000 | [diff] [blame] | 4225 | if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4226 | return; |
Fariborz Jahanian | d672436 | 2012-04-23 20:30:52 +0000 | [diff] [blame] | 4227 | if (!Message.empty()) { |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4228 | Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() |
| 4229 | << Message; |
Fariborz Jahanian | d672436 | 2012-04-23 20:30:52 +0000 | [diff] [blame] | 4230 | Diag(D->getLocation(), |
| 4231 | isa<ObjCMethodDecl>(D) ? diag::note_method_declared_at |
| 4232 | : diag::note_previous_decl) << D->getDeclName(); |
| 4233 | } |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4234 | else { |
Peter Collingbourne | 743b82b | 2011-01-02 19:53:12 +0000 | [diff] [blame] | 4235 | if (!UnknownObjCClass) |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4236 | Diag(Loc, diag::warn_deprecated) << D->getDeclName(); |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4237 | else { |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4238 | Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4239 | Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); |
| 4240 | } |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4241 | } |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4242 | } |