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*. |
| 244 | static bool threadSafetyCheckIsSmartPointer(Sema &S, const QualType QT) { |
| 245 | if (const RecordType *RT = QT->getAs<RecordType>()) { |
| 246 | DeclContextLookupConstResult Res1 = RT->getDecl()->lookup( |
| 247 | S.Context.DeclarationNames.getCXXOperatorName(OO_Star)); |
| 248 | if (Res1.first == Res1.second) |
| 249 | return false; |
| 250 | |
| 251 | DeclContextLookupConstResult Res2 = RT->getDecl()->lookup( |
| 252 | S.Context.DeclarationNames.getCXXOperatorName(OO_Arrow)); |
| 253 | if (Res2.first != Res2.second) |
| 254 | return true; |
| 255 | } |
| 256 | return false; |
| 257 | } |
| 258 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 259 | /// |
| 260 | /// \brief Check if passed in Decl is a pointer type. |
| 261 | /// Note that this function may produce an error message. |
| 262 | /// \return true if the Decl is a pointer type; false otherwise |
| 263 | /// |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 264 | static bool threadSafetyCheckIsPointer(Sema &S, const Decl *D, |
| 265 | const AttributeList &Attr) { |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 266 | if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 267 | QualType QT = vd->getType(); |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 268 | if (QT->isAnyPointerType()) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 269 | return true; |
DeLesley Hutchins | aed9ea3 | 2012-04-23 18:39:55 +0000 | [diff] [blame] | 270 | |
| 271 | if (threadSafetyCheckIsSmartPointer(S, QT)) |
| 272 | return true; |
| 273 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 274 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_pointer) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 275 | << Attr.getName()->getName() << QT; |
| 276 | } else { |
| 277 | S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) |
| 278 | << Attr.getName(); |
| 279 | } |
| 280 | return false; |
| 281 | } |
| 282 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 283 | /// \brief Checks that the passed in QualType either is of RecordType or points |
| 284 | /// to RecordType. Returns the relevant RecordType, null if it does not exit. |
Benjamin Kramer | 7d23b4a | 2011-08-19 04:18:11 +0000 | [diff] [blame] | 285 | static const RecordType *getRecordType(QualType QT) { |
| 286 | if (const RecordType *RT = QT->getAs<RecordType>()) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 287 | return RT; |
Benjamin Kramer | 7d23b4a | 2011-08-19 04:18:11 +0000 | [diff] [blame] | 288 | |
| 289 | // Now check if we point to record type. |
| 290 | if (const PointerType *PT = QT->getAs<PointerType>()) |
| 291 | return PT->getPointeeType()->getAs<RecordType>(); |
| 292 | |
| 293 | return 0; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 294 | } |
| 295 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 296 | /// \brief Thread Safety Analysis: Checks that the passed in RecordType |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 297 | /// resolves to a lockable object. |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 298 | static void checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, |
| 299 | QualType Ty) { |
| 300 | const RecordType *RT = getRecordType(Ty); |
| 301 | |
| 302 | // Warn if could not get record type for this argument. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 303 | if (!RT) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 304 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_class) |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 305 | << Attr.getName() << Ty.getAsString(); |
| 306 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 307 | } |
DeLesley Hutchins | 634b293 | 2012-02-16 17:15:51 +0000 | [diff] [blame] | 308 | // Don't check for lockable if the class hasn't been defined yet. |
| 309 | if (RT->isIncompleteType()) |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 310 | return; |
| 311 | // Warn if the type is not lockable. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 312 | if (!RT->getDecl()->getAttr<LockableAttr>()) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 313 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_lockable) |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 314 | << Attr.getName() << Ty.getAsString(); |
| 315 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 316 | } |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 317 | } |
| 318 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 319 | /// \brief Thread Safety Analysis: Checks that all attribute arguments, starting |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 320 | /// from Sidx, resolve to a lockable object. |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 321 | /// \param Sidx The attribute argument index to start checking with. |
| 322 | /// \param ParamIdxOk Whether an argument can be indexing into a function |
| 323 | /// parameter list. |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 324 | static void checkAttrArgsAreLockableObjs(Sema &S, Decl *D, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 325 | const AttributeList &Attr, |
| 326 | SmallVectorImpl<Expr*> &Args, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 327 | int Sidx = 0, |
| 328 | bool ParamIdxOk = false) { |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 329 | for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 330 | Expr *ArgExp = Attr.getArg(Idx); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 331 | |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 332 | if (ArgExp->isTypeDependent()) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 333 | // FIXME -- need to check this again on template instantiation |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 334 | Args.push_back(ArgExp); |
| 335 | continue; |
| 336 | } |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 337 | |
DeLesley Hutchins | 79747e0 | 2012-04-23 16:45:01 +0000 | [diff] [blame] | 338 | if (StringLiteral *StrLit = dyn_cast<StringLiteral>(ArgExp)) { |
| 339 | // Ignore empty strings without warnings |
| 340 | if (StrLit->getLength() == 0) |
| 341 | continue; |
| 342 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 343 | // We allow constant strings to be used as a placeholder for expressions |
| 344 | // that are not valid C++ syntax, but warn that they are ignored. |
| 345 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_ignored) << |
| 346 | Attr.getName(); |
| 347 | continue; |
| 348 | } |
| 349 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 350 | QualType ArgTy = ArgExp->getType(); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 351 | |
DeLesley Hutchins | 79747e0 | 2012-04-23 16:45:01 +0000 | [diff] [blame] | 352 | // A pointer to member expression of the form &MyClass::mu is treated |
| 353 | // specially -- we need to look at the type of the member. |
| 354 | if (UnaryOperator *UOp = dyn_cast<UnaryOperator>(ArgExp)) |
| 355 | if (UOp->getOpcode() == UO_AddrOf) |
| 356 | if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(UOp->getSubExpr())) |
| 357 | if (DRE->getDecl()->isCXXInstanceMember()) |
| 358 | ArgTy = DRE->getDecl()->getType(); |
| 359 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 360 | // First see if we can just cast to record type, or point to record type. |
| 361 | const RecordType *RT = getRecordType(ArgTy); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 362 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 363 | // Now check if we index into a record type function param. |
| 364 | if(!RT && ParamIdxOk) { |
| 365 | FunctionDecl *FD = dyn_cast<FunctionDecl>(D); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 366 | IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); |
| 367 | if(FD && IL) { |
| 368 | unsigned int NumParams = FD->getNumParams(); |
| 369 | llvm::APInt ArgValue = IL->getValue(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 370 | uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); |
| 371 | uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; |
| 372 | if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 373 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) |
| 374 | << Attr.getName() << Idx + 1 << NumParams; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 375 | continue; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 376 | } |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 377 | ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 378 | } |
| 379 | } |
| 380 | |
DeLesley Hutchins | 83cad45 | 2012-04-06 20:02:30 +0000 | [diff] [blame] | 381 | checkForLockableRecord(S, D, Attr, ArgTy); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 382 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 383 | Args.push_back(ArgExp); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 384 | } |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 385 | } |
| 386 | |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 387 | //===----------------------------------------------------------------------===// |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 388 | // Attribute Implementations |
| 389 | //===----------------------------------------------------------------------===// |
| 390 | |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 391 | // FIXME: All this manual attribute parsing code is gross. At the |
| 392 | // least add some helper functions to check most argument patterns (# |
| 393 | // and types of args). |
| 394 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 395 | static void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 396 | bool pointer = false) { |
| 397 | assert(!Attr.isInvalid()); |
| 398 | |
| 399 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 400 | return; |
| 401 | |
| 402 | // D must be either a member field or global (potentially shared) variable. |
| 403 | if (!mayBeSharedVariable(D)) { |
| 404 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 405 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 406 | return; |
| 407 | } |
| 408 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 409 | if (pointer && !threadSafetyCheckIsPointer(S, D, Attr)) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 410 | return; |
| 411 | |
| 412 | if (pointer) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 413 | D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 414 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 415 | D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 416 | } |
| 417 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 418 | static void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 419 | bool pointer = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 420 | assert(!Attr.isInvalid()); |
| 421 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 422 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 423 | return; |
| 424 | |
| 425 | // D must be either a member field or global (potentially shared) variable. |
| 426 | if (!mayBeSharedVariable(D)) { |
| 427 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 428 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 429 | return; |
| 430 | } |
| 431 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 432 | if (pointer && !threadSafetyCheckIsPointer(S, D, Attr)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 433 | return; |
| 434 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 435 | SmallVector<Expr*, 1> Args; |
| 436 | // check that all arguments are lockable objects |
| 437 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
| 438 | unsigned Size = Args.size(); |
| 439 | if (Size != 1) |
| 440 | return; |
| 441 | Expr *Arg = Args[0]; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 442 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 443 | if (pointer) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 444 | D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 445 | S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 446 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 447 | D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 448 | } |
| 449 | |
| 450 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 451 | static void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 452 | bool scoped = false) { |
| 453 | assert(!Attr.isInvalid()); |
| 454 | |
| 455 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 456 | return; |
| 457 | |
Caitlin Sadowski | 1748b12 | 2011-09-16 00:35:54 +0000 | [diff] [blame] | 458 | // FIXME: Lockable structs for C code. |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 459 | if (!isa<CXXRecordDecl>(D)) { |
| 460 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 461 | << Attr.getName() << ExpectedClass; |
| 462 | return; |
| 463 | } |
| 464 | |
| 465 | if (scoped) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 466 | D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 467 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 468 | D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 469 | } |
| 470 | |
| 471 | static void handleNoThreadSafetyAttr(Sema &S, Decl *D, |
| 472 | const AttributeList &Attr) { |
| 473 | assert(!Attr.isInvalid()); |
| 474 | |
| 475 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 476 | return; |
| 477 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 478 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 479 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 480 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 481 | return; |
| 482 | } |
| 483 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 484 | D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 485 | S.Context)); |
| 486 | } |
| 487 | |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 488 | static void handleNoAddressSafetyAttr(Sema &S, Decl *D, |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 489 | const AttributeList &Attr) { |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 490 | assert(!Attr.isInvalid()); |
| 491 | |
| 492 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 493 | return; |
| 494 | |
| 495 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
| 496 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 497 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 498 | return; |
| 499 | } |
| 500 | |
| 501 | D->addAttr(::new (S.Context) NoAddressSafetyAnalysisAttr(Attr.getRange(), |
| 502 | S.Context)); |
| 503 | } |
| 504 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 505 | static void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 506 | bool before) { |
| 507 | assert(!Attr.isInvalid()); |
| 508 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 509 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 510 | return; |
| 511 | |
| 512 | // D must be either a member field or global (potentially shared) variable. |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 513 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
| 514 | if (!VD || !mayBeSharedVariable(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 515 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 516 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 517 | return; |
| 518 | } |
| 519 | |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 520 | // Check that this attribute only applies to lockable types. |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 521 | QualType QT = VD->getType(); |
| 522 | if (!QT->isDependentType()) { |
| 523 | const RecordType *RT = getRecordType(QT); |
| 524 | if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 525 | S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_lockable) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 526 | << Attr.getName(); |
| 527 | return; |
| 528 | } |
| 529 | } |
| 530 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 531 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 532 | // Check that all arguments are lockable objects. |
| 533 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 534 | unsigned Size = Args.size(); |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 535 | if (Size == 0) |
| 536 | return; |
| 537 | Expr **StartArg = &Args[0]; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 538 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 539 | if (before) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 540 | D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 541 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 542 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 543 | D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 544 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 545 | } |
| 546 | |
| 547 | static void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 548 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 549 | assert(!Attr.isInvalid()); |
| 550 | |
| 551 | // zero or more arguments ok |
| 552 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 553 | // check that the attribute is applied to a function |
| 554 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 555 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 556 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 557 | return; |
| 558 | } |
| 559 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 560 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 561 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 562 | checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 563 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 564 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 565 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 566 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 567 | D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 568 | S.Context, StartArg, |
| 569 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 570 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 571 | D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 572 | S.Context, StartArg, |
| 573 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 574 | } |
| 575 | |
| 576 | static void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 577 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 578 | assert(!Attr.isInvalid()); |
| 579 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 580 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 581 | return; |
| 582 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 583 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 584 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 585 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 586 | return; |
| 587 | } |
| 588 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 589 | if (!isIntOrBool(Attr.getArg(0))) { |
| 590 | S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) |
| 591 | << Attr.getName(); |
| 592 | return; |
| 593 | } |
| 594 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 595 | SmallVector<Expr*, 2> Args; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 596 | // check that all arguments are lockable objects |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 597 | checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 598 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 599 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 600 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 601 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 602 | D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 603 | S.Context, |
Caitlin Sadowski | 69f5d14 | 2011-09-15 17:50:19 +0000 | [diff] [blame] | 604 | Attr.getArg(0), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 605 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 606 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 607 | D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 69f5d14 | 2011-09-15 17:50:19 +0000 | [diff] [blame] | 608 | S.Context, |
| 609 | Attr.getArg(0), |
| 610 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 611 | } |
| 612 | |
| 613 | static void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 614 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 615 | assert(!Attr.isInvalid()); |
| 616 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 617 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 618 | return; |
| 619 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 620 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 621 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 622 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 623 | return; |
| 624 | } |
| 625 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 626 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 627 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 628 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 629 | unsigned Size = Args.size(); |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 630 | if (Size == 0) |
| 631 | return; |
| 632 | Expr **StartArg = &Args[0]; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 633 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 634 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 635 | D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 636 | S.Context, StartArg, |
| 637 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 638 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 639 | D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 640 | S.Context, StartArg, |
| 641 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 642 | } |
| 643 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 644 | static void handleUnlockFunAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 645 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 646 | assert(!Attr.isInvalid()); |
| 647 | |
| 648 | // zero or more arguments ok |
| 649 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 650 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 651 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 652 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 653 | return; |
| 654 | } |
| 655 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 656 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 657 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 658 | checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 659 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 660 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 661 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 662 | D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 663 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 664 | } |
| 665 | |
| 666 | static void handleLockReturnedAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 667 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 668 | assert(!Attr.isInvalid()); |
| 669 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 670 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 671 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 672 | Expr *Arg = Attr.getArg(0); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 673 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 674 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 675 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 676 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 677 | return; |
| 678 | } |
| 679 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 680 | if (Arg->isTypeDependent()) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 681 | return; |
| 682 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 683 | // check that the argument is lockable object |
DeLesley Hutchins | f26efd7 | 2012-05-02 17:38:37 +0000 | [diff] [blame^] | 684 | SmallVector<Expr*, 1> Args; |
| 685 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
| 686 | unsigned Size = Args.size(); |
| 687 | if (Size == 0) |
| 688 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 689 | |
DeLesley Hutchins | f26efd7 | 2012-05-02 17:38:37 +0000 | [diff] [blame^] | 690 | D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, |
| 691 | Args[0])); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 692 | } |
| 693 | |
| 694 | static void handleLocksExcludedAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 695 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 696 | assert(!Attr.isInvalid()); |
| 697 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 698 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 699 | return; |
| 700 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 701 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 702 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 703 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 704 | return; |
| 705 | } |
| 706 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 707 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 708 | SmallVector<Expr*, 1> Args; |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 709 | checkAttrArgsAreLockableObjs(S, D, Attr, Args); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 710 | unsigned Size = Args.size(); |
DeLesley Hutchins | ae519c4 | 2012-04-19 16:10:44 +0000 | [diff] [blame] | 711 | if (Size == 0) |
| 712 | return; |
| 713 | Expr **StartArg = &Args[0]; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 714 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 715 | D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 716 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 720 | static void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, |
| 721 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 722 | TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 723 | if (tDecl == 0) { |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 724 | S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 725 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 726 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 727 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 728 | QualType curType = tDecl->getUnderlyingType(); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 729 | |
| 730 | Expr *sizeExpr; |
| 731 | |
| 732 | // Special case where the argument is a template id. |
| 733 | if (Attr.getParameterName()) { |
John McCall | f7a1a74 | 2009-11-24 19:00:30 +0000 | [diff] [blame] | 734 | CXXScopeSpec SS; |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 735 | SourceLocation TemplateKWLoc; |
John McCall | f7a1a74 | 2009-11-24 19:00:30 +0000 | [diff] [blame] | 736 | UnqualifiedId id; |
| 737 | id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); |
Douglas Gregor | 4ac0140 | 2011-06-15 16:02:29 +0000 | [diff] [blame] | 738 | |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 739 | ExprResult Size = S.ActOnIdExpression(scope, SS, TemplateKWLoc, id, |
| 740 | false, false); |
Douglas Gregor | 4ac0140 | 2011-06-15 16:02:29 +0000 | [diff] [blame] | 741 | if (Size.isInvalid()) |
| 742 | return; |
| 743 | |
| 744 | sizeExpr = Size.get(); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 745 | } else { |
| 746 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 747 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 748 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 749 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 750 | sizeExpr = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 751 | } |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 752 | |
| 753 | // Instantiate/Install the vector type, and let Sema build the type for us. |
| 754 | // This will run the reguired checks. |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 755 | QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 756 | if (!T.isNull()) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 757 | // FIXME: preserve the old source info. |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 758 | tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 759 | |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 760 | // Remember this typedef decl, we will need it later for diagnostics. |
| 761 | S.ExtVectorDecls.push_back(tDecl); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 762 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 763 | } |
| 764 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 765 | static void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 766 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 767 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 768 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 769 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 770 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 771 | TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 772 | else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 773 | // If the alignment is less than or equal to 8 bits, the packed attribute |
| 774 | // has no effect. |
| 775 | if (!FD->getType()->isIncompleteType() && |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 776 | S.Context.getTypeAlign(FD->getType()) <= 8) |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 777 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) |
Chris Lattner | 08631c5 | 2008-11-23 21:45:46 +0000 | [diff] [blame] | 778 | << Attr.getName() << FD->getType(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 779 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 780 | FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 781 | } else |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 782 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 783 | } |
| 784 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 785 | static void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 786 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 787 | TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); |
Fariborz Jahanian | c1a0a73 | 2011-04-26 17:54:40 +0000 | [diff] [blame] | 788 | else |
| 789 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
| 790 | } |
| 791 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 792 | static void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 793 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 794 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 795 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 796 | |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 797 | // The IBAction attributes only apply to instance methods. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 798 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 799 | if (MD->isInstanceMethod()) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 800 | D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 801 | return; |
| 802 | } |
| 803 | |
Ted Kremenek | 4ee2bb1 | 2011-02-04 06:54:16 +0000 | [diff] [blame] | 804 | S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 805 | } |
| 806 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 807 | static bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { |
| 808 | // The IBOutlet/IBOutletCollection attributes only apply to instance |
| 809 | // variables or properties of Objective-C classes. The outlet must also |
| 810 | // have an object reference type. |
| 811 | if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { |
| 812 | if (!VD->getType()->getAs<ObjCObjectPointerType>()) { |
Ted Kremenek | 0bfaf06 | 2011-11-01 18:08:35 +0000 | [diff] [blame] | 813 | S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 814 | << Attr.getName() << VD->getType() << 0; |
| 815 | return false; |
| 816 | } |
| 817 | } |
| 818 | else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { |
| 819 | if (!PD->getType()->getAs<ObjCObjectPointerType>()) { |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 820 | S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 821 | << Attr.getName() << PD->getType() << 1; |
| 822 | return false; |
| 823 | } |
| 824 | } |
| 825 | else { |
| 826 | S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); |
| 827 | return false; |
| 828 | } |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 829 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 830 | return true; |
| 831 | } |
| 832 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 833 | static void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 834 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 835 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 836 | return; |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 837 | |
| 838 | if (!checkIBOutletCommon(S, D, Attr)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 839 | return; |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 840 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 841 | D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 842 | } |
| 843 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 844 | static void handleIBOutletCollection(Sema &S, Decl *D, |
| 845 | const AttributeList &Attr) { |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 846 | |
| 847 | // The iboutletcollection attribute can have zero or one arguments. |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 848 | if (Attr.getParameterName() && Attr.getNumArgs() > 0) { |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 849 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 850 | return; |
| 851 | } |
| 852 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 853 | if (!checkIBOutletCommon(S, D, Attr)) |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 854 | return; |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 855 | |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 856 | IdentifierInfo *II = Attr.getParameterName(); |
| 857 | if (!II) |
Fariborz Jahanian | f4072ae | 2011-10-18 19:54:31 +0000 | [diff] [blame] | 858 | II = &S.Context.Idents.get("NSObject"); |
Fariborz Jahanian | 3a3400b | 2010-08-17 21:39:27 +0000 | [diff] [blame] | 859 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 860 | ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 861 | S.getScopeForContext(D->getDeclContext()->getParent())); |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 862 | if (!TypeRep) { |
| 863 | S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; |
| 864 | return; |
| 865 | } |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 866 | QualType QT = TypeRep.get(); |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 867 | // Diagnose use of non-object type in iboutletcollection attribute. |
| 868 | // FIXME. Gnu attribute extension ignores use of builtin types in |
| 869 | // attributes. So, __attribute__((iboutletcollection(char))) will be |
| 870 | // treated as __attribute__((iboutletcollection())). |
Fariborz Jahanian | f4072ae | 2011-10-18 19:54:31 +0000 | [diff] [blame] | 871 | if (!QT->isObjCIdType() && !QT->isObjCObjectType()) { |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 872 | S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; |
| 873 | return; |
| 874 | } |
Argyrios Kyrtzidis | f1e7af3 | 2011-09-13 18:41:59 +0000 | [diff] [blame] | 875 | D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, |
| 876 | QT, Attr.getParameterLoc())); |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 877 | } |
| 878 | |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 879 | static void possibleTransparentUnionPointerType(QualType &T) { |
Fariborz Jahanian | 68fe96a | 2011-06-27 21:12:03 +0000 | [diff] [blame] | 880 | if (const RecordType *UT = T->getAsUnionType()) |
| 881 | if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { |
| 882 | RecordDecl *UD = UT->getDecl(); |
| 883 | for (RecordDecl::field_iterator it = UD->field_begin(), |
| 884 | itend = UD->field_end(); it != itend; ++it) { |
| 885 | QualType QT = it->getType(); |
| 886 | if (QT->isAnyPointerType() || QT->isBlockPointerType()) { |
| 887 | T = QT; |
| 888 | return; |
| 889 | } |
| 890 | } |
| 891 | } |
| 892 | } |
| 893 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 894 | static void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 895 | // GCC ignores the nonnull attribute on K&R style function prototypes, so we |
| 896 | // ignore it as well |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 897 | if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 898 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 899 | << Attr.getName() << ExpectedFunction; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 900 | return; |
| 901 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 902 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 903 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 904 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 905 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 906 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 907 | |
| 908 | // The nonnull attribute only applies to pointers. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 909 | SmallVector<unsigned, 10> NonNullArgs; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 910 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 911 | for (AttributeList::arg_iterator I=Attr.arg_begin(), |
| 912 | E=Attr.arg_end(); I!=E; ++I) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 913 | |
| 914 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 915 | // The argument must be an integer constant expression. |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 916 | Expr *Ex = *I; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 917 | llvm::APSInt ArgNum(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 918 | if (Ex->isTypeDependent() || Ex->isValueDependent() || |
| 919 | !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 920 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 921 | << "nonnull" << Ex->getSourceRange(); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 922 | return; |
| 923 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 924 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 925 | unsigned x = (unsigned) ArgNum.getZExtValue(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 926 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 927 | if (x < 1 || x > NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 928 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 30bc965 | 2008-11-19 07:22:31 +0000 | [diff] [blame] | 929 | << "nonnull" << I.getArgNum() << Ex->getSourceRange(); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 930 | return; |
| 931 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 932 | |
Ted Kremenek | 465172f | 2008-07-21 22:09:15 +0000 | [diff] [blame] | 933 | --x; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 934 | if (HasImplicitThisParam) { |
| 935 | if (x == 0) { |
| 936 | S.Diag(Attr.getLoc(), |
| 937 | diag::err_attribute_invalid_implicit_this_argument) |
| 938 | << "nonnull" << Ex->getSourceRange(); |
| 939 | return; |
| 940 | } |
| 941 | --x; |
| 942 | } |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 943 | |
| 944 | // Is the function argument a pointer type? |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 945 | QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 946 | possibleTransparentUnionPointerType(T); |
Fariborz Jahanian | 68fe96a | 2011-06-27 21:12:03 +0000 | [diff] [blame] | 947 | |
Ted Kremenek | dbfe99e | 2009-07-15 23:23:54 +0000 | [diff] [blame] | 948 | if (!T->isAnyPointerType() && !T->isBlockPointerType()) { |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 949 | // FIXME: Should also highlight argument in decl. |
Douglas Gregor | c9ef405 | 2010-08-12 18:48:43 +0000 | [diff] [blame] | 950 | S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 951 | << "nonnull" << Ex->getSourceRange(); |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 952 | continue; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 953 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 954 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 955 | NonNullArgs.push_back(x); |
| 956 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 957 | |
| 958 | // If no arguments were specified to __attribute__((nonnull)) then all pointer |
| 959 | // arguments have a nonnull attribute. |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 960 | if (NonNullArgs.empty()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 961 | for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { |
| 962 | QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 963 | possibleTransparentUnionPointerType(T); |
Ted Kremenek | dbfe99e | 2009-07-15 23:23:54 +0000 | [diff] [blame] | 964 | if (T->isAnyPointerType() || T->isBlockPointerType()) |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 965 | NonNullArgs.push_back(I); |
Ted Kremenek | 46bbaca | 2008-11-18 06:52:58 +0000 | [diff] [blame] | 966 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 967 | |
Ted Kremenek | ee1c08c | 2010-10-21 18:49:36 +0000 | [diff] [blame] | 968 | // No pointer arguments? |
Fariborz Jahanian | 60acea4 | 2010-09-27 19:05:51 +0000 | [diff] [blame] | 969 | if (NonNullArgs.empty()) { |
| 970 | // Warn the trivial case only if attribute is not coming from a |
| 971 | // macro instantiation. |
| 972 | if (Attr.getLoc().isFileID()) |
| 973 | S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 974 | return; |
Fariborz Jahanian | 60acea4 | 2010-09-27 19:05:51 +0000 | [diff] [blame] | 975 | } |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 976 | } |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 977 | |
| 978 | unsigned* start = &NonNullArgs[0]; |
| 979 | unsigned size = NonNullArgs.size(); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 980 | llvm::array_pod_sort(start, start + size); |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 981 | D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 982 | size)); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 983 | } |
| 984 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 985 | static void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 986 | // This attribute must be applied to a function declaration. |
| 987 | // The first argument to the attribute must be a string, |
| 988 | // the name of the resource, for example "malloc". |
| 989 | // The following arguments must be argument indexes, the arguments must be |
| 990 | // of integer type for Returns, otherwise of pointer type. |
| 991 | // 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] | 992 | // after being held. free() should be __attribute((ownership_takes)), whereas |
| 993 | // a list append function may well be __attribute((ownership_holds)). |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 994 | |
| 995 | if (!AL.getParameterName()) { |
| 996 | S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) |
| 997 | << AL.getName()->getName() << 1; |
| 998 | return; |
| 999 | } |
| 1000 | // Figure out our Kind, and check arguments while we're at it. |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1001 | OwnershipAttr::OwnershipKind K; |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1002 | switch (AL.getKind()) { |
| 1003 | case AttributeList::AT_ownership_takes: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1004 | K = OwnershipAttr::Takes; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1005 | if (AL.getNumArgs() < 1) { |
| 1006 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1007 | return; |
| 1008 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1009 | break; |
| 1010 | case AttributeList::AT_ownership_holds: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1011 | K = OwnershipAttr::Holds; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1012 | if (AL.getNumArgs() < 1) { |
| 1013 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1014 | return; |
| 1015 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1016 | break; |
| 1017 | case AttributeList::AT_ownership_returns: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1018 | K = OwnershipAttr::Returns; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1019 | if (AL.getNumArgs() > 1) { |
| 1020 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) |
| 1021 | << AL.getNumArgs() + 1; |
| 1022 | return; |
| 1023 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1024 | break; |
| 1025 | default: |
| 1026 | // This should never happen given how we are called. |
| 1027 | llvm_unreachable("Unknown ownership attribute"); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1028 | } |
| 1029 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1030 | if (!isFunction(D) || !hasFunctionProto(D)) { |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1031 | S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1032 | << AL.getName() << ExpectedFunction; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1033 | return; |
| 1034 | } |
| 1035 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 1036 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 1037 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1038 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 1039 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1040 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1041 | StringRef Module = AL.getParameterName()->getName(); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1042 | |
| 1043 | // Normalize the argument, __foo__ becomes foo. |
| 1044 | if (Module.startswith("__") && Module.endswith("__")) |
| 1045 | Module = Module.substr(2, Module.size() - 4); |
| 1046 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1047 | SmallVector<unsigned, 10> OwnershipArgs; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1048 | |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1049 | for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; |
| 1050 | ++I) { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1051 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1052 | Expr *IdxExpr = *I; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1053 | llvm::APSInt ArgNum(32); |
| 1054 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() |
| 1055 | || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { |
| 1056 | S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) |
| 1057 | << AL.getName()->getName() << IdxExpr->getSourceRange(); |
| 1058 | continue; |
| 1059 | } |
| 1060 | |
| 1061 | unsigned x = (unsigned) ArgNum.getZExtValue(); |
| 1062 | |
| 1063 | if (x > NumArgs || x < 1) { |
| 1064 | S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) |
| 1065 | << AL.getName()->getName() << x << IdxExpr->getSourceRange(); |
| 1066 | continue; |
| 1067 | } |
| 1068 | --x; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 1069 | if (HasImplicitThisParam) { |
| 1070 | if (x == 0) { |
| 1071 | S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) |
| 1072 | << "ownership" << IdxExpr->getSourceRange(); |
| 1073 | return; |
| 1074 | } |
| 1075 | --x; |
| 1076 | } |
| 1077 | |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1078 | switch (K) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1079 | case OwnershipAttr::Takes: |
| 1080 | case OwnershipAttr::Holds: { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1081 | // Is the function argument a pointer type? |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1082 | QualType T = getFunctionOrMethodArgType(D, x); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1083 | if (!T->isAnyPointerType() && !T->isBlockPointerType()) { |
| 1084 | // FIXME: Should also highlight argument in decl. |
| 1085 | S.Diag(AL.getLoc(), diag::err_ownership_type) |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1086 | << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1087 | << "pointer" |
| 1088 | << IdxExpr->getSourceRange(); |
| 1089 | continue; |
| 1090 | } |
| 1091 | break; |
| 1092 | } |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1093 | case OwnershipAttr::Returns: { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1094 | if (AL.getNumArgs() > 1) { |
| 1095 | // Is the function argument an integer type? |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1096 | Expr *IdxExpr = AL.getArg(0); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1097 | llvm::APSInt ArgNum(32); |
| 1098 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() |
| 1099 | || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { |
| 1100 | S.Diag(AL.getLoc(), diag::err_ownership_type) |
| 1101 | << "ownership_returns" << "integer" |
| 1102 | << IdxExpr->getSourceRange(); |
| 1103 | return; |
| 1104 | } |
| 1105 | } |
| 1106 | break; |
| 1107 | } |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1108 | } // switch |
| 1109 | |
| 1110 | // Check we don't have a conflict with another ownership attribute. |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1111 | for (specific_attr_iterator<OwnershipAttr> |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1112 | i = D->specific_attr_begin<OwnershipAttr>(), |
| 1113 | e = D->specific_attr_end<OwnershipAttr>(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1114 | i != e; ++i) { |
| 1115 | if ((*i)->getOwnKind() != K) { |
| 1116 | for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); |
| 1117 | I!=E; ++I) { |
| 1118 | if (x == *I) { |
| 1119 | S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) |
| 1120 | << AL.getName()->getName() << "ownership_*"; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1121 | } |
| 1122 | } |
| 1123 | } |
| 1124 | } |
| 1125 | OwnershipArgs.push_back(x); |
| 1126 | } |
| 1127 | |
| 1128 | unsigned* start = OwnershipArgs.data(); |
| 1129 | unsigned size = OwnershipArgs.size(); |
| 1130 | llvm::array_pod_sort(start, start + size); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1131 | |
| 1132 | if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { |
| 1133 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1134 | return; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1135 | } |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1136 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1137 | D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1138 | start, size)); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1139 | } |
| 1140 | |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1141 | /// Whether this declaration has internal linkage for the purposes of |
| 1142 | /// things that want to complain about things not have internal linkage. |
| 1143 | static bool hasEffectivelyInternalLinkage(NamedDecl *D) { |
| 1144 | switch (D->getLinkage()) { |
| 1145 | case NoLinkage: |
| 1146 | case InternalLinkage: |
| 1147 | return true; |
| 1148 | |
| 1149 | // Template instantiations that go from external to unique-external |
| 1150 | // shouldn't get diagnosed. |
| 1151 | case UniqueExternalLinkage: |
| 1152 | return true; |
| 1153 | |
| 1154 | case ExternalLinkage: |
| 1155 | return false; |
| 1156 | } |
| 1157 | llvm_unreachable("unknown linkage kind!"); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1158 | } |
| 1159 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1160 | static void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1161 | // Check the attribute arguments. |
| 1162 | if (Attr.getNumArgs() > 1) { |
| 1163 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 1164 | return; |
| 1165 | } |
| 1166 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1167 | if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1168 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1169 | << Attr.getName() << ExpectedVariableOrFunction; |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1170 | return; |
| 1171 | } |
| 1172 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1173 | NamedDecl *nd = cast<NamedDecl>(D); |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1174 | |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1175 | // gcc rejects |
| 1176 | // class c { |
| 1177 | // static int a __attribute__((weakref ("v2"))); |
| 1178 | // static int b() __attribute__((weakref ("f3"))); |
| 1179 | // }; |
| 1180 | // and ignores the attributes of |
| 1181 | // void f(void) { |
| 1182 | // static int a __attribute__((weakref ("v2"))); |
| 1183 | // } |
| 1184 | // we reject them |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1185 | const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1186 | if (!Ctx->isFileContext()) { |
| 1187 | S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1188 | nd->getNameAsString(); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1189 | return; |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1190 | } |
| 1191 | |
| 1192 | // The GCC manual says |
| 1193 | // |
| 1194 | // At present, a declaration to which `weakref' is attached can only |
| 1195 | // be `static'. |
| 1196 | // |
| 1197 | // It also says |
| 1198 | // |
| 1199 | // Without a TARGET, |
| 1200 | // given as an argument to `weakref' or to `alias', `weakref' is |
| 1201 | // equivalent to `weak'. |
| 1202 | // |
| 1203 | // gcc 4.4.1 will accept |
| 1204 | // int a7 __attribute__((weakref)); |
| 1205 | // as |
| 1206 | // int a7 __attribute__((weak)); |
| 1207 | // This looks like a bug in gcc. We reject that for now. We should revisit |
| 1208 | // it if this behaviour is actually used. |
| 1209 | |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1210 | if (!hasEffectivelyInternalLinkage(nd)) { |
| 1211 | S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1212 | return; |
| 1213 | } |
| 1214 | |
| 1215 | // GCC rejects |
| 1216 | // static ((alias ("y"), weakref)). |
| 1217 | // Should we? How to check that weakref is before or after alias? |
| 1218 | |
| 1219 | if (Attr.getNumArgs() == 1) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1220 | Expr *Arg = Attr.getArg(0); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1221 | Arg = Arg->IgnoreParenCasts(); |
| 1222 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
| 1223 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1224 | if (!Str || !Str->isAscii()) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1225 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 1226 | << "weakref" << 1; |
| 1227 | return; |
| 1228 | } |
| 1229 | // GCC will accept anything as the argument of weakref. Should we |
| 1230 | // check for an existing decl? |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1231 | D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1232 | Str->getString())); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1233 | } |
| 1234 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1235 | D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1236 | } |
| 1237 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1238 | static void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1239 | // check the attribute arguments. |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 1240 | if (Attr.getNumArgs() != 1) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1241 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1242 | return; |
| 1243 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1244 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1245 | Expr *Arg = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1246 | Arg = Arg->IgnoreParenCasts(); |
| 1247 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1248 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1249 | if (!Str || !Str->isAscii()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1250 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1251 | << "alias" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1252 | return; |
| 1253 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1254 | |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 1255 | if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { |
Rafael Espindola | f5fe292 | 2010-12-07 15:23:23 +0000 | [diff] [blame] | 1256 | S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); |
| 1257 | return; |
| 1258 | } |
| 1259 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1260 | // FIXME: check if target symbol exists in current file |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1261 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1262 | D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1263 | Str->getString())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1264 | } |
| 1265 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1266 | static void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1267 | // Check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1268 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Daniel Dunbar | af668b0 | 2008-10-28 00:17:57 +0000 | [diff] [blame] | 1269 | return; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1270 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1271 | if (!isa<FunctionDecl>(D)) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1272 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1273 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1274 | return; |
| 1275 | } |
| 1276 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1277 | D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1278 | } |
| 1279 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1280 | static void handleAlwaysInlineAttr(Sema &S, Decl *D, |
| 1281 | const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1282 | // Check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1283 | if (Attr.hasParameterOrArguments()) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1284 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1285 | return; |
| 1286 | } |
| 1287 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1288 | if (!isa<FunctionDecl>(D)) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1289 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1290 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1291 | return; |
| 1292 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1293 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1294 | D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | af668b0 | 2008-10-28 00:17:57 +0000 | [diff] [blame] | 1295 | } |
| 1296 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1297 | static void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1298 | // Check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1299 | if (Attr.hasParameterOrArguments()) { |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1300 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1301 | return; |
| 1302 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1303 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1304 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1305 | QualType RetTy = FD->getResultType(); |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1306 | if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1307 | D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1308 | return; |
| 1309 | } |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1310 | } |
| 1311 | |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1312 | S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1313 | } |
| 1314 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1315 | static void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1316 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1317 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1318 | return; |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1319 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1320 | D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1321 | } |
| 1322 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1323 | static void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 1324 | assert(!Attr.isInvalid()); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1325 | if (isa<VarDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1326 | D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); |
Eric Christopher | 722109c | 2010-12-03 06:58:14 +0000 | [diff] [blame] | 1327 | else |
| 1328 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1329 | << Attr.getName() << ExpectedVariable; |
Eric Christopher | a6cf1e7 | 2010-12-02 02:45:55 +0000 | [diff] [blame] | 1330 | } |
| 1331 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1332 | static void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 1333 | assert(!Attr.isInvalid()); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1334 | if (isa<VarDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1335 | D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); |
Eric Christopher | 722109c | 2010-12-03 06:58:14 +0000 | [diff] [blame] | 1336 | else |
| 1337 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1338 | << Attr.getName() << ExpectedVariable; |
Eric Christopher | a6cf1e7 | 2010-12-02 02:45:55 +0000 | [diff] [blame] | 1339 | } |
| 1340 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1341 | static void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1342 | if (hasDeclarator(D)) return; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1343 | |
| 1344 | if (S.CheckNoReturnAttr(attr)) return; |
| 1345 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1346 | if (!isa<ObjCMethodDecl>(D)) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1347 | S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1348 | << attr.getName() << ExpectedFunctionOrMethod; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1349 | return; |
| 1350 | } |
| 1351 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1352 | D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1353 | } |
| 1354 | |
| 1355 | bool Sema::CheckNoReturnAttr(const AttributeList &attr) { |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1356 | if (attr.hasParameterOrArguments()) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1357 | Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1358 | attr.setInvalid(); |
| 1359 | return true; |
| 1360 | } |
| 1361 | |
| 1362 | return false; |
Ted Kremenek | b725232 | 2009-04-10 00:01:14 +0000 | [diff] [blame] | 1363 | } |
| 1364 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1365 | static void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, |
| 1366 | const AttributeList &Attr) { |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1367 | |
| 1368 | // The checking path for 'noreturn' and 'analyzer_noreturn' are different |
| 1369 | // because 'analyzer_noreturn' does not impact the type. |
| 1370 | |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1371 | if(!checkAttributeNumArgs(S, Attr, 0)) |
| 1372 | return; |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1373 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1374 | if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { |
| 1375 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1376 | if (VD == 0 || (!VD->getType()->isBlockPointerType() |
| 1377 | && !VD->getType()->isFunctionPointerType())) { |
| 1378 | S.Diag(Attr.getLoc(), |
| 1379 | Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type |
| 1380 | : diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1381 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1382 | return; |
| 1383 | } |
| 1384 | } |
| 1385 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1386 | D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1387 | } |
| 1388 | |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1389 | // PS3 PPU-specific. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1390 | static void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1391 | /* |
| 1392 | Returning a Vector Class in Registers |
| 1393 | |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1394 | According to the PPU ABI specifications, a class with a single member of |
| 1395 | vector type is returned in memory when used as the return value of a function. |
| 1396 | This results in inefficient code when implementing vector classes. To return |
| 1397 | the value in a single vector register, add the vecreturn attribute to the |
| 1398 | class definition. This attribute is also applicable to struct types. |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1399 | |
| 1400 | Example: |
| 1401 | |
| 1402 | struct Vector |
| 1403 | { |
| 1404 | __vector float xyzw; |
| 1405 | } __attribute__((vecreturn)); |
| 1406 | |
| 1407 | Vector Add(Vector lhs, Vector rhs) |
| 1408 | { |
| 1409 | Vector result; |
| 1410 | result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); |
| 1411 | return result; // This will be returned in a register |
| 1412 | } |
| 1413 | */ |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1414 | if (!isa<RecordDecl>(D)) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1415 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1416 | << Attr.getName() << ExpectedClass; |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1417 | return; |
| 1418 | } |
| 1419 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1420 | if (D->getAttr<VecReturnAttr>()) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1421 | S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; |
| 1422 | return; |
| 1423 | } |
| 1424 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1425 | RecordDecl *record = cast<RecordDecl>(D); |
John Thompson | 01add59 | 2010-09-18 01:12:07 +0000 | [diff] [blame] | 1426 | int count = 0; |
| 1427 | |
| 1428 | if (!isa<CXXRecordDecl>(record)) { |
| 1429 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); |
| 1430 | return; |
| 1431 | } |
| 1432 | |
| 1433 | if (!cast<CXXRecordDecl>(record)->isPOD()) { |
| 1434 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); |
| 1435 | return; |
| 1436 | } |
| 1437 | |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1438 | for (RecordDecl::field_iterator iter = record->field_begin(); |
| 1439 | iter != record->field_end(); iter++) { |
John Thompson | 01add59 | 2010-09-18 01:12:07 +0000 | [diff] [blame] | 1440 | if ((count == 1) || !iter->getType()->isVectorType()) { |
| 1441 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); |
| 1442 | return; |
| 1443 | } |
| 1444 | count++; |
| 1445 | } |
| 1446 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1447 | D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1448 | } |
| 1449 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1450 | static void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1451 | if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1452 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1453 | << Attr.getName() << ExpectedFunctionMethodOrParameter; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1454 | return; |
| 1455 | } |
| 1456 | // FIXME: Actually store the attribute on the declaration |
| 1457 | } |
| 1458 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1459 | static void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1460 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1461 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1462 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1463 | return; |
| 1464 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1465 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1466 | if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && |
| 1467 | !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1468 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1469 | << Attr.getName() << ExpectedVariableFunctionOrLabel; |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1470 | return; |
| 1471 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1472 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1473 | D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1474 | } |
| 1475 | |
Rafael Espindola | f87cced | 2011-10-03 14:59:42 +0000 | [diff] [blame] | 1476 | static void handleReturnsTwiceAttr(Sema &S, Decl *D, |
| 1477 | const AttributeList &Attr) { |
| 1478 | // check the attribute arguments. |
| 1479 | if (Attr.hasParameterOrArguments()) { |
| 1480 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1481 | return; |
| 1482 | } |
| 1483 | |
| 1484 | if (!isa<FunctionDecl>(D)) { |
| 1485 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1486 | << Attr.getName() << ExpectedFunction; |
| 1487 | return; |
| 1488 | } |
| 1489 | |
| 1490 | D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); |
| 1491 | } |
| 1492 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1493 | static void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1494 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1495 | if (Attr.hasParameterOrArguments()) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1496 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1497 | return; |
| 1498 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1499 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1500 | if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { |
Daniel Dunbar | 186204b | 2009-02-13 22:48:56 +0000 | [diff] [blame] | 1501 | if (VD->hasLocalStorage() || VD->hasExternalStorage()) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1502 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; |
| 1503 | return; |
| 1504 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1505 | } else if (!isFunctionOrMethod(D)) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1506 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1507 | << Attr.getName() << ExpectedVariableOrFunction; |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1508 | return; |
| 1509 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1510 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1511 | D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1512 | } |
| 1513 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1514 | static void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1515 | // check the attribute arguments. |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1516 | if (Attr.getNumArgs() > 1) { |
| 1517 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1518 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1519 | } |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1520 | |
| 1521 | int priority = 65535; // FIXME: Do not hardcode such constants. |
| 1522 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1523 | Expr *E = Attr.getArg(0); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1524 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1525 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1526 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1527 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1528 | << "constructor" << 1 << E->getSourceRange(); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1529 | return; |
| 1530 | } |
| 1531 | priority = Idx.getZExtValue(); |
| 1532 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1533 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1534 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1535 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1536 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1537 | return; |
| 1538 | } |
| 1539 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1540 | D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1541 | priority)); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1542 | } |
| 1543 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1544 | static void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1545 | // check the attribute arguments. |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1546 | if (Attr.getNumArgs() > 1) { |
| 1547 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1548 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1549 | } |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1550 | |
| 1551 | int priority = 65535; // FIXME: Do not hardcode such constants. |
| 1552 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1553 | Expr *E = Attr.getArg(0); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1554 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1555 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1556 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1557 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1558 | << "destructor" << 1 << E->getSourceRange(); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1559 | return; |
| 1560 | } |
| 1561 | priority = Idx.getZExtValue(); |
| 1562 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1563 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1564 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1565 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1566 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1567 | return; |
| 1568 | } |
| 1569 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1570 | D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1571 | priority)); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1572 | } |
| 1573 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1574 | static void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1575 | unsigned NumArgs = Attr.getNumArgs(); |
| 1576 | if (NumArgs > 1) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1577 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1578 | return; |
| 1579 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1580 | |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1581 | // Handle the case where deprecated attribute has a text message. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1582 | StringRef Str; |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1583 | if (NumArgs == 1) { |
| 1584 | StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1585 | if (!SE) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1586 | S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) |
| 1587 | << "deprecated"; |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1588 | return; |
| 1589 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1590 | Str = SE->getString(); |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1591 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1592 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1593 | D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1594 | } |
| 1595 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1596 | static void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1597 | unsigned NumArgs = Attr.getNumArgs(); |
| 1598 | if (NumArgs > 1) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1599 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Fariborz Jahanian | bc1c877 | 2008-12-17 01:07:27 +0000 | [diff] [blame] | 1600 | return; |
| 1601 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1602 | |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1603 | // Handle the case where unavailable attribute has a text message. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1604 | StringRef Str; |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1605 | if (NumArgs == 1) { |
| 1606 | StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1607 | if (!SE) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1608 | S.Diag(Attr.getArg(0)->getLocStart(), |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1609 | diag::err_attribute_not_string) << "unavailable"; |
| 1610 | return; |
| 1611 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1612 | Str = SE->getString(); |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1613 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1614 | D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); |
Fariborz Jahanian | bc1c877 | 2008-12-17 01:07:27 +0000 | [diff] [blame] | 1615 | } |
| 1616 | |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 1617 | static void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, |
| 1618 | const AttributeList &Attr) { |
| 1619 | unsigned NumArgs = Attr.getNumArgs(); |
| 1620 | if (NumArgs > 0) { |
| 1621 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1622 | return; |
| 1623 | } |
| 1624 | |
| 1625 | D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1626 | Attr.getRange(), S.Context)); |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 1627 | } |
| 1628 | |
Patrick Beard | b2f6820 | 2012-04-06 18:12:22 +0000 | [diff] [blame] | 1629 | static void handleObjCRootClassAttr(Sema &S, Decl *D, |
| 1630 | const AttributeList &Attr) { |
| 1631 | if (!isa<ObjCInterfaceDecl>(D)) { |
| 1632 | S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); |
| 1633 | return; |
| 1634 | } |
| 1635 | |
| 1636 | unsigned NumArgs = Attr.getNumArgs(); |
| 1637 | if (NumArgs > 0) { |
| 1638 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1639 | return; |
| 1640 | } |
| 1641 | |
| 1642 | D->addAttr(::new (S.Context) ObjCRootClassAttr(Attr.getRange(), S.Context)); |
| 1643 | } |
| 1644 | |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 1645 | static void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1646 | const AttributeList &Attr) { |
Fariborz Jahanian | 341b8be | 2012-01-03 22:52:32 +0000 | [diff] [blame] | 1647 | if (!isa<ObjCInterfaceDecl>(D)) { |
| 1648 | S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis); |
| 1649 | return; |
| 1650 | } |
| 1651 | |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1652 | unsigned NumArgs = Attr.getNumArgs(); |
| 1653 | if (NumArgs > 0) { |
| 1654 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1655 | return; |
| 1656 | } |
| 1657 | |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 1658 | D->addAttr(::new (S.Context) ObjCRequiresPropertyDefsAttr( |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1659 | Attr.getRange(), S.Context)); |
| 1660 | } |
| 1661 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1662 | static void handleAvailabilityAttr(Sema &S, Decl *D, |
| 1663 | const AttributeList &Attr) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1664 | IdentifierInfo *Platform = Attr.getParameterName(); |
| 1665 | SourceLocation PlatformLoc = Attr.getParameterLoc(); |
| 1666 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1667 | StringRef PlatformName |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1668 | = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); |
| 1669 | if (PlatformName.empty()) { |
| 1670 | S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) |
| 1671 | << Platform; |
| 1672 | |
| 1673 | PlatformName = Platform->getName(); |
| 1674 | } |
| 1675 | |
| 1676 | AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); |
| 1677 | AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); |
| 1678 | AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 1679 | bool IsUnavailable = Attr.getUnavailableLoc().isValid(); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1680 | |
Douglas Gregor | c90df6a | 2011-08-10 16:09:55 +0000 | [diff] [blame] | 1681 | // Ensure that Introduced <= Deprecated <= Obsoleted (although not all |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1682 | // of these steps are needed). |
| 1683 | if (Introduced.isValid() && Deprecated.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1684 | !(Introduced.Version <= Deprecated.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1685 | S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) |
| 1686 | << 1 << PlatformName << Deprecated.Version.getAsString() |
| 1687 | << 0 << Introduced.Version.getAsString(); |
| 1688 | return; |
| 1689 | } |
| 1690 | |
| 1691 | if (Introduced.isValid() && Obsoleted.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1692 | !(Introduced.Version <= Obsoleted.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1693 | S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) |
| 1694 | << 2 << PlatformName << Obsoleted.Version.getAsString() |
| 1695 | << 0 << Introduced.Version.getAsString(); |
| 1696 | return; |
| 1697 | } |
| 1698 | |
| 1699 | if (Deprecated.isValid() && Obsoleted.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1700 | !(Deprecated.Version <= Obsoleted.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1701 | S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) |
| 1702 | << 2 << PlatformName << Obsoleted.Version.getAsString() |
| 1703 | << 1 << Deprecated.Version.getAsString(); |
| 1704 | return; |
| 1705 | } |
| 1706 | |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 1707 | StringRef Str; |
| 1708 | const StringLiteral *SE = |
| 1709 | dyn_cast_or_null<const StringLiteral>(Attr.getMessageExpr()); |
| 1710 | if (SE) |
| 1711 | Str = SE->getString(); |
| 1712 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1713 | D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1714 | Platform, |
| 1715 | Introduced.Version, |
| 1716 | Deprecated.Version, |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 1717 | Obsoleted.Version, |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 1718 | IsUnavailable, |
| 1719 | Str)); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1720 | } |
| 1721 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1722 | static void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1723 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1724 | if(!checkAttributeNumArgs(S, Attr, 1)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1725 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1726 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1727 | Expr *Arg = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1728 | Arg = Arg->IgnoreParenCasts(); |
| 1729 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1730 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1731 | if (!Str || !Str->isAscii()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1732 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1733 | << "visibility" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1734 | return; |
| 1735 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1736 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1737 | StringRef TypeStr = Str->getString(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1738 | VisibilityAttr::VisibilityType type; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1739 | |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1740 | if (TypeStr == "default") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1741 | type = VisibilityAttr::Default; |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1742 | else if (TypeStr == "hidden") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1743 | type = VisibilityAttr::Hidden; |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1744 | else if (TypeStr == "internal") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1745 | type = VisibilityAttr::Hidden; // FIXME |
John McCall | 4188760 | 2012-01-29 01:20:30 +0000 | [diff] [blame] | 1746 | else if (TypeStr == "protected") { |
| 1747 | // Complain about attempts to use protected visibility on targets |
| 1748 | // (like Darwin) that don't support it. |
| 1749 | if (!S.Context.getTargetInfo().hasProtectedVisibility()) { |
| 1750 | S.Diag(Attr.getLoc(), diag::warn_attribute_protected_visibility); |
| 1751 | type = VisibilityAttr::Default; |
| 1752 | } else { |
| 1753 | type = VisibilityAttr::Protected; |
| 1754 | } |
| 1755 | } else { |
Chris Lattner | 08631c5 | 2008-11-23 21:45:46 +0000 | [diff] [blame] | 1756 | S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1757 | return; |
| 1758 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1759 | |
Rafael Espindola | 4e31b4d | 2012-05-01 20:58:29 +0000 | [diff] [blame] | 1760 | Decl *PrevDecl; |
| 1761 | if (isa<FunctionDecl>(D)) |
| 1762 | PrevDecl = D->getMostRecentDecl()->getPreviousDecl(); |
| 1763 | else |
| 1764 | PrevDecl = D->getCanonicalDecl(); |
| 1765 | |
| 1766 | VisibilityAttr *PrevAttr = PrevDecl ? PrevDecl->getAttr<VisibilityAttr>() : 0; |
Rafael Espindola | 45a0b26 | 2012-04-26 01:26:03 +0000 | [diff] [blame] | 1767 | if (PrevAttr) { |
| 1768 | VisibilityAttr::VisibilityType PrevVisibility = PrevAttr->getVisibility(); |
| 1769 | if (PrevVisibility != type) { |
| 1770 | S.Diag(Attr.getLoc(), diag::err_mismatched_visibilit); |
| 1771 | S.Diag(PrevAttr->getLocation(), diag::note_previous_attribute); |
| 1772 | return; |
| 1773 | } |
| 1774 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1775 | D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1776 | } |
| 1777 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1778 | static void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, |
| 1779 | const AttributeList &Attr) { |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1780 | ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); |
| 1781 | if (!method) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1782 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1783 | << ExpectedMethod; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1784 | return; |
| 1785 | } |
| 1786 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1787 | if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { |
| 1788 | if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { |
| 1789 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1790 | << "objc_method_family" << 1; |
| 1791 | } else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1792 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1793 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1794 | Attr.setInvalid(); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1795 | return; |
| 1796 | } |
| 1797 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1798 | StringRef param = Attr.getParameterName()->getName(); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1799 | ObjCMethodFamilyAttr::FamilyKind family; |
| 1800 | if (param == "none") |
| 1801 | family = ObjCMethodFamilyAttr::OMF_None; |
| 1802 | else if (param == "alloc") |
| 1803 | family = ObjCMethodFamilyAttr::OMF_alloc; |
| 1804 | else if (param == "copy") |
| 1805 | family = ObjCMethodFamilyAttr::OMF_copy; |
| 1806 | else if (param == "init") |
| 1807 | family = ObjCMethodFamilyAttr::OMF_init; |
| 1808 | else if (param == "mutableCopy") |
| 1809 | family = ObjCMethodFamilyAttr::OMF_mutableCopy; |
| 1810 | else if (param == "new") |
| 1811 | family = ObjCMethodFamilyAttr::OMF_new; |
| 1812 | else { |
| 1813 | // Just warn and ignore it. This is future-proof against new |
| 1814 | // families being used in system headers. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1815 | S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1816 | return; |
| 1817 | } |
| 1818 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 1819 | if (family == ObjCMethodFamilyAttr::OMF_init && |
| 1820 | !method->getResultType()->isObjCObjectPointerType()) { |
| 1821 | S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) |
| 1822 | << method->getResultType(); |
| 1823 | // Ignore the attribute. |
| 1824 | return; |
| 1825 | } |
| 1826 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1827 | method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 1828 | S.Context, family)); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1829 | } |
| 1830 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1831 | static void handleObjCExceptionAttr(Sema &S, Decl *D, |
| 1832 | const AttributeList &Attr) { |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1833 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1834 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1835 | |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1836 | ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); |
| 1837 | if (OCI == 0) { |
| 1838 | S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); |
| 1839 | return; |
| 1840 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1841 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1842 | D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1843 | } |
| 1844 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1845 | static void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1846 | if (Attr.getNumArgs() != 0) { |
John McCall | 2b7baf0 | 2010-05-28 18:25:28 +0000 | [diff] [blame] | 1847 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1848 | return; |
| 1849 | } |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 1850 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1851 | QualType T = TD->getUnderlyingType(); |
| 1852 | if (!T->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 1853 | !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1854 | S.Diag(TD->getLocation(), diag::err_nsobject_attribute); |
| 1855 | return; |
| 1856 | } |
| 1857 | } |
Ted Kremenek | f6e88d7 | 2012-03-01 01:40:32 +0000 | [diff] [blame] | 1858 | else if (!isa<ObjCPropertyDecl>(D)) { |
| 1859 | // It is okay to include this attribute on properties, e.g.: |
| 1860 | // |
| 1861 | // @property (retain, nonatomic) struct Bork *Q __attribute__((NSObject)); |
| 1862 | // |
| 1863 | // In this case it follows tradition and suppresses an error in the above |
| 1864 | // case. |
Fariborz Jahanian | 9b2eb7b | 2011-11-29 01:48:40 +0000 | [diff] [blame] | 1865 | S.Diag(D->getLocation(), diag::warn_nsobject_attribute); |
Ted Kremenek | f6e88d7 | 2012-03-01 01:40:32 +0000 | [diff] [blame] | 1866 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1867 | D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1868 | } |
| 1869 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1870 | static void |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1871 | handleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1872 | if (Attr.getNumArgs() != 0) { |
John McCall | 2b7baf0 | 2010-05-28 18:25:28 +0000 | [diff] [blame] | 1873 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1874 | return; |
| 1875 | } |
| 1876 | |
| 1877 | if (!isa<FunctionDecl>(D)) { |
| 1878 | S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); |
| 1879 | return; |
| 1880 | } |
| 1881 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1882 | D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1883 | } |
| 1884 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1885 | static void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1886 | if (!Attr.getParameterName()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1887 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1888 | << "blocks" << 1; |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1889 | return; |
| 1890 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1891 | |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1892 | if (Attr.getNumArgs() != 0) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1893 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1894 | return; |
| 1895 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1896 | |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1897 | BlocksAttr::BlockType type; |
Chris Lattner | 92e62b0 | 2008-11-20 04:42:34 +0000 | [diff] [blame] | 1898 | if (Attr.getParameterName()->isStr("byref")) |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1899 | type = BlocksAttr::ByRef; |
| 1900 | else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1901 | S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1902 | << "blocks" << Attr.getParameterName(); |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1903 | return; |
| 1904 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1905 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1906 | D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1907 | } |
| 1908 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1909 | static void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1910 | // check the attribute arguments. |
| 1911 | if (Attr.getNumArgs() > 2) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1912 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1913 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1914 | } |
| 1915 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1916 | unsigned sentinel = 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1917 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1918 | Expr *E = Attr.getArg(0); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1919 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1920 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1921 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1922 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1923 | << "sentinel" << 1 << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1924 | return; |
| 1925 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1926 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1927 | if (Idx.isSigned() && Idx.isNegative()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1928 | S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) |
| 1929 | << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1930 | return; |
| 1931 | } |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1932 | |
| 1933 | sentinel = Idx.getZExtValue(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1934 | } |
| 1935 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1936 | unsigned nullPos = 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1937 | if (Attr.getNumArgs() > 1) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1938 | Expr *E = Attr.getArg(1); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1939 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1940 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1941 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1942 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1943 | << "sentinel" << 2 << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1944 | return; |
| 1945 | } |
| 1946 | nullPos = Idx.getZExtValue(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1947 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1948 | if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1949 | // FIXME: This error message could be improved, it would be nice |
| 1950 | // to say what the bounds actually are. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1951 | S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) |
| 1952 | << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1953 | return; |
| 1954 | } |
| 1955 | } |
| 1956 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1957 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1958 | const FunctionType *FT = FD->getType()->castAs<FunctionType>(); |
Chris Lattner | 897cd90 | 2009-03-17 23:03:47 +0000 | [diff] [blame] | 1959 | if (isa<FunctionNoProtoType>(FT)) { |
| 1960 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); |
| 1961 | return; |
| 1962 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1963 | |
Chris Lattner | 897cd90 | 2009-03-17 23:03:47 +0000 | [diff] [blame] | 1964 | if (!cast<FunctionProtoType>(FT)->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1965 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1966 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1967 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1968 | } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1969 | if (!MD->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1970 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1971 | return; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1972 | } |
Eli Friedman | a0b2ba1 | 2012-01-06 01:23:10 +0000 | [diff] [blame] | 1973 | } else if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) { |
| 1974 | if (!BD->isVariadic()) { |
| 1975 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 1; |
| 1976 | return; |
| 1977 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1978 | } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1979 | QualType Ty = V->getType(); |
Fariborz Jahanian | daf0415 | 2009-05-15 20:33:25 +0000 | [diff] [blame] | 1980 | if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1981 | const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1982 | : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1983 | if (!cast<FunctionProtoType>(FT)->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1984 | int m = Ty->isFunctionPointerType() ? 0 : 1; |
| 1985 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1986 | return; |
| 1987 | } |
Mike Stump | ac5fc7c | 2009-08-04 21:02:39 +0000 | [diff] [blame] | 1988 | } else { |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1989 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1990 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1991 | return; |
| 1992 | } |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1993 | } else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1994 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1995 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1996 | return; |
| 1997 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1998 | D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1999 | nullPos)); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 2000 | } |
| 2001 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2002 | static void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2003 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2004 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2005 | return; |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2006 | |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 2007 | if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2008 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2009 | << Attr.getName() << ExpectedFunctionOrMethod; |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2010 | return; |
| 2011 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2012 | |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 2013 | if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { |
| 2014 | S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) |
| 2015 | << Attr.getName() << 0; |
Nuno Lopes | f857798 | 2009-12-22 23:59:52 +0000 | [diff] [blame] | 2016 | return; |
| 2017 | } |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 2018 | if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
| 2019 | if (MD->getResultType()->isVoidType()) { |
| 2020 | S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) |
| 2021 | << Attr.getName() << 1; |
| 2022 | return; |
| 2023 | } |
| 2024 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2025 | D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 2026 | } |
| 2027 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2028 | static void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2029 | // check the attribute arguments. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2030 | if (Attr.hasParameterOrArguments()) { |
| 2031 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2032 | return; |
| 2033 | } |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2034 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2035 | if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { |
Fariborz Jahanian | 13c7fcc | 2011-10-21 22:27:12 +0000 | [diff] [blame] | 2036 | if (isa<CXXRecordDecl>(D)) { |
| 2037 | D->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); |
| 2038 | return; |
| 2039 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2040 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 2041 | << Attr.getName() << ExpectedVariableOrFunction; |
Fariborz Jahanian | f23ecd9 | 2009-07-16 01:12:24 +0000 | [diff] [blame] | 2042 | return; |
| 2043 | } |
| 2044 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2045 | NamedDecl *nd = cast<NamedDecl>(D); |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 2046 | |
| 2047 | // 'weak' only applies to declarations with external linkage. |
| 2048 | if (hasEffectivelyInternalLinkage(nd)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2049 | S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2050 | return; |
| 2051 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2052 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2053 | nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2054 | } |
| 2055 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2056 | static void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2057 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2058 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2059 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2060 | |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2061 | |
| 2062 | // weak_import only applies to variable & function declarations. |
| 2063 | bool isDef = false; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 2064 | if (!D->canBeWeakImported(isDef)) { |
| 2065 | if (isDef) |
| 2066 | S.Diag(Attr.getLoc(), |
| 2067 | diag::warn_attribute_weak_import_invalid_on_definition) |
| 2068 | << "weak_import" << 2 /*variable and function*/; |
Douglas Gregor | def8631 | 2011-03-23 13:27:51 +0000 | [diff] [blame] | 2069 | else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2070 | (S.Context.getTargetInfo().getTriple().isOSDarwin() && |
Fariborz Jahanian | 90eed21 | 2011-10-26 23:59:12 +0000 | [diff] [blame] | 2071 | (isa<ObjCInterfaceDecl>(D) || isa<EnumDecl>(D)))) { |
Douglas Gregor | def8631 | 2011-03-23 13:27:51 +0000 | [diff] [blame] | 2072 | // Nothing to warn about here. |
| 2073 | } else |
Fariborz Jahanian | c034974 | 2010-04-13 20:22:35 +0000 | [diff] [blame] | 2074 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2075 | << Attr.getName() << ExpectedVariableOrFunction; |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2076 | |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2077 | return; |
| 2078 | } |
| 2079 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2080 | D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2081 | } |
| 2082 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2083 | static void handleReqdWorkGroupSize(Sema &S, Decl *D, |
| 2084 | const AttributeList &Attr) { |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2085 | // Attribute has 3 arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2086 | if (!checkAttributeNumArgs(S, Attr, 3)) |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2087 | return; |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2088 | |
| 2089 | unsigned WGSize[3]; |
| 2090 | for (unsigned i = 0; i < 3; ++i) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2091 | Expr *E = Attr.getArg(i); |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2092 | llvm::APSInt ArgNum(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2093 | if (E->isTypeDependent() || E->isValueDependent() || |
| 2094 | !E->isIntegerConstantExpr(ArgNum, S.Context)) { |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2095 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 2096 | << "reqd_work_group_size" << E->getSourceRange(); |
| 2097 | return; |
| 2098 | } |
| 2099 | WGSize[i] = (unsigned) ArgNum.getZExtValue(); |
| 2100 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2101 | D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2102 | WGSize[0], WGSize[1], |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2103 | WGSize[2])); |
| 2104 | } |
| 2105 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2106 | static void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2107 | // Attribute has no arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2108 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2109 | return; |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2110 | |
| 2111 | // Make sure that there is a string literal as the sections's single |
| 2112 | // argument. |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2113 | Expr *ArgExpr = Attr.getArg(0); |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2114 | StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2115 | if (!SE) { |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2116 | S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2117 | return; |
| 2118 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2119 | |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2120 | // If the target wants to validate the section specifier, make it happen. |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2121 | std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); |
Chris Lattner | a1e1dc7 | 2010-01-12 20:58:53 +0000 | [diff] [blame] | 2122 | if (!Error.empty()) { |
| 2123 | S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) |
| 2124 | << Error; |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2125 | return; |
| 2126 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2127 | |
Chris Lattner | a1e1dc7 | 2010-01-12 20:58:53 +0000 | [diff] [blame] | 2128 | // This attribute cannot be applied to local variables. |
| 2129 | if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { |
| 2130 | S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); |
| 2131 | return; |
| 2132 | } |
| 2133 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2134 | D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2135 | SE->getString())); |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2136 | } |
| 2137 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2138 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2139 | static void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2140 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2141 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2142 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2143 | return; |
| 2144 | } |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2145 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2146 | if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2147 | if (Existing->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2148 | Existing->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2149 | } else { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2150 | D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2151 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2152 | } |
| 2153 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2154 | static void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +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; |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2158 | return; |
| 2159 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2160 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2161 | if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { |
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) ConstAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2166 | } |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2167 | } |
| 2168 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2169 | static void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2170 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2171 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2172 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2173 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2174 | D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2175 | } |
| 2176 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2177 | static void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2178 | if (!Attr.getParameterName()) { |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2179 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2180 | return; |
| 2181 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2182 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2183 | if (Attr.getNumArgs() != 0) { |
| 2184 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2185 | return; |
| 2186 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2187 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2188 | VarDecl *VD = dyn_cast<VarDecl>(D); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2189 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2190 | if (!VD || !VD->hasLocalStorage()) { |
| 2191 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; |
| 2192 | return; |
| 2193 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2194 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2195 | // Look up the function |
Douglas Gregor | c83c687 | 2010-04-15 22:33:43 +0000 | [diff] [blame] | 2196 | // FIXME: Lookup probably isn't looking in the right place |
John McCall | f36e02d | 2009-10-09 21:13:30 +0000 | [diff] [blame] | 2197 | NamedDecl *CleanupDecl |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2198 | = S.LookupSingleName(S.TUScope, Attr.getParameterName(), |
| 2199 | Attr.getParameterLoc(), Sema::LookupOrdinaryName); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2200 | if (!CleanupDecl) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2201 | S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2202 | Attr.getParameterName(); |
| 2203 | return; |
| 2204 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2205 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2206 | FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); |
| 2207 | if (!FD) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2208 | S.Diag(Attr.getParameterLoc(), |
| 2209 | diag::err_attribute_cleanup_arg_not_function) |
| 2210 | << Attr.getParameterName(); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2211 | return; |
| 2212 | } |
| 2213 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2214 | if (FD->getNumParams() != 1) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2215 | S.Diag(Attr.getParameterLoc(), |
| 2216 | diag::err_attribute_cleanup_func_must_take_one_arg) |
| 2217 | << Attr.getParameterName(); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2218 | return; |
| 2219 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2220 | |
Anders Carlsson | 89941c1 | 2009-02-07 23:16:50 +0000 | [diff] [blame] | 2221 | // We're currently more strict than GCC about what function types we accept. |
| 2222 | // If this ever proves to be a problem it should be easy to fix. |
| 2223 | QualType Ty = S.Context.getPointerType(VD->getType()); |
| 2224 | QualType ParamTy = FD->getParamDecl(0)->getType(); |
Douglas Gregor | b608b98 | 2011-01-28 02:26:04 +0000 | [diff] [blame] | 2225 | if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), |
| 2226 | ParamTy, Ty) != Sema::Compatible) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2227 | S.Diag(Attr.getParameterLoc(), |
Anders Carlsson | 89941c1 | 2009-02-07 23:16:50 +0000 | [diff] [blame] | 2228 | diag::err_attribute_cleanup_func_arg_incompatible_type) << |
| 2229 | Attr.getParameterName() << ParamTy << Ty; |
| 2230 | return; |
| 2231 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2232 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2233 | D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); |
Eli Friedman | 5f2987c | 2012-02-02 03:46:19 +0000 | [diff] [blame] | 2234 | S.MarkFunctionReferenced(Attr.getParameterLoc(), FD); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2235 | } |
| 2236 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2237 | /// Handle __attribute__((format_arg((idx)))) attribute based on |
| 2238 | /// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2239 | static void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2240 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2241 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2242 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2243 | if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2244 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2245 | << Attr.getName() << ExpectedFunction; |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2246 | return; |
| 2247 | } |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2248 | |
| 2249 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 2250 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2251 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 2252 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2253 | unsigned FirstIdx = 1; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2254 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2255 | // checks for the 2nd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2256 | Expr *IdxExpr = Attr.getArg(0); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2257 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2258 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || |
| 2259 | !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2260 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 2261 | << "format" << 2 << IdxExpr->getSourceRange(); |
| 2262 | return; |
| 2263 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2264 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2265 | if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { |
| 2266 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
| 2267 | << "format" << 2 << IdxExpr->getSourceRange(); |
| 2268 | return; |
| 2269 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2270 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2271 | unsigned ArgIdx = Idx.getZExtValue() - 1; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2272 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2273 | if (HasImplicitThisParam) { |
| 2274 | if (ArgIdx == 0) { |
| 2275 | S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) |
| 2276 | << "format_arg" << IdxExpr->getSourceRange(); |
| 2277 | return; |
| 2278 | } |
| 2279 | ArgIdx--; |
| 2280 | } |
| 2281 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2282 | // make sure the format string is really a string |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2283 | QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2284 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2285 | bool not_nsstring_type = !isNSStringType(Ty, S.Context); |
| 2286 | if (not_nsstring_type && |
| 2287 | !isCFStringType(Ty, S.Context) && |
| 2288 | (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2289 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2290 | // FIXME: Should highlight the actual expression that has the wrong type. |
| 2291 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2292 | << (not_nsstring_type ? "a string type" : "an NSString") |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2293 | << IdxExpr->getSourceRange(); |
| 2294 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2295 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2296 | Ty = getFunctionOrMethodResultType(D); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2297 | if (!isNSStringType(Ty, S.Context) && |
| 2298 | !isCFStringType(Ty, S.Context) && |
| 2299 | (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2300 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2301 | // FIXME: Should highlight the actual expression that has the wrong type. |
| 2302 | S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2303 | << (not_nsstring_type ? "string type" : "NSString") |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2304 | << IdxExpr->getSourceRange(); |
| 2305 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2306 | } |
| 2307 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2308 | D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2309 | Idx.getZExtValue())); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2310 | } |
| 2311 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2312 | enum FormatAttrKind { |
| 2313 | CFStringFormat, |
| 2314 | NSStringFormat, |
| 2315 | StrftimeFormat, |
| 2316 | SupportedFormat, |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2317 | IgnoredFormat, |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2318 | InvalidFormat |
| 2319 | }; |
| 2320 | |
| 2321 | /// getFormatAttrKind - Map from format attribute names to supported format |
| 2322 | /// types. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2323 | static FormatAttrKind getFormatAttrKind(StringRef Format) { |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2324 | // Check for formats that get handled specially. |
| 2325 | if (Format == "NSString") |
| 2326 | return NSStringFormat; |
| 2327 | if (Format == "CFString") |
| 2328 | return CFStringFormat; |
| 2329 | if (Format == "strftime") |
| 2330 | return StrftimeFormat; |
| 2331 | |
| 2332 | // Otherwise, check for supported formats. |
| 2333 | if (Format == "scanf" || Format == "printf" || Format == "printf0" || |
Jean-Daniel Dupas | 69d5384 | 2012-01-27 09:14:17 +0000 | [diff] [blame] | 2334 | Format == "strfmon" || Format == "cmn_err" || Format == "vcmn_err" || |
Chris Lattner | cd5b306 | 2011-02-18 17:05:55 +0000 | [diff] [blame] | 2335 | Format == "zcmn_err" || |
| 2336 | Format == "kprintf") // OpenBSD. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2337 | return SupportedFormat; |
| 2338 | |
Duncan Sands | bc52595 | 2010-03-23 14:44:19 +0000 | [diff] [blame] | 2339 | if (Format == "gcc_diag" || Format == "gcc_cdiag" || |
| 2340 | Format == "gcc_cxxdiag" || Format == "gcc_tdiag") |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2341 | return IgnoredFormat; |
| 2342 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2343 | return InvalidFormat; |
| 2344 | } |
| 2345 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2346 | /// Handle __attribute__((init_priority(priority))) attributes based on |
| 2347 | /// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2348 | static void handleInitPriorityAttr(Sema &S, Decl *D, |
| 2349 | const AttributeList &Attr) { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 2350 | if (!S.getLangOpts().CPlusPlus) { |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2351 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
| 2352 | return; |
| 2353 | } |
| 2354 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2355 | if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2356 | S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); |
| 2357 | Attr.setInvalid(); |
| 2358 | return; |
| 2359 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2360 | QualType T = dyn_cast<VarDecl>(D)->getType(); |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2361 | if (S.Context.getAsArrayType(T)) |
| 2362 | T = S.Context.getBaseElementType(T); |
| 2363 | if (!T->getAs<RecordType>()) { |
| 2364 | S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); |
| 2365 | Attr.setInvalid(); |
| 2366 | return; |
| 2367 | } |
| 2368 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2369 | if (Attr.getNumArgs() != 1) { |
| 2370 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2371 | Attr.setInvalid(); |
| 2372 | return; |
| 2373 | } |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2374 | Expr *priorityExpr = Attr.getArg(0); |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2375 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2376 | llvm::APSInt priority(32); |
| 2377 | if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || |
| 2378 | !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { |
| 2379 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 2380 | << "init_priority" << priorityExpr->getSourceRange(); |
| 2381 | Attr.setInvalid(); |
| 2382 | return; |
| 2383 | } |
Fariborz Jahanian | 9f967c5 | 2010-06-21 18:45:05 +0000 | [diff] [blame] | 2384 | unsigned prioritynum = priority.getZExtValue(); |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2385 | if (prioritynum < 101 || prioritynum > 65535) { |
| 2386 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) |
| 2387 | << priorityExpr->getSourceRange(); |
| 2388 | Attr.setInvalid(); |
| 2389 | return; |
| 2390 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2391 | D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2392 | prioritynum)); |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2393 | } |
| 2394 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2395 | /// Handle __attribute__((format(type,idx,firstarg))) attributes based on |
| 2396 | /// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2397 | static void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2398 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2399 | if (!Attr.getParameterName()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2400 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2401 | << "format" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2402 | return; |
| 2403 | } |
| 2404 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2405 | if (Attr.getNumArgs() != 2) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2406 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2407 | return; |
| 2408 | } |
| 2409 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2410 | if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2411 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2412 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2413 | return; |
| 2414 | } |
| 2415 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2416 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 2417 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2418 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 2419 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2420 | unsigned FirstIdx = 1; |
| 2421 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2422 | StringRef Format = Attr.getParameterName()->getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2423 | |
| 2424 | // Normalize the argument, __foo__ becomes foo. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2425 | if (Format.startswith("__") && Format.endswith("__")) |
| 2426 | Format = Format.substr(2, Format.size() - 4); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2427 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2428 | // Check for supported formats. |
| 2429 | FormatAttrKind Kind = getFormatAttrKind(Format); |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2430 | |
| 2431 | if (Kind == IgnoredFormat) |
| 2432 | return; |
| 2433 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2434 | if (Kind == InvalidFormat) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2435 | S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 2436 | << "format" << Attr.getParameterName()->getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2437 | return; |
| 2438 | } |
| 2439 | |
| 2440 | // checks for the 2nd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2441 | Expr *IdxExpr = Attr.getArg(0); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2442 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2443 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || |
| 2444 | !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2445 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2446 | << "format" << 2 << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2447 | return; |
| 2448 | } |
| 2449 | |
| 2450 | if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2451 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2452 | << "format" << 2 << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2453 | return; |
| 2454 | } |
| 2455 | |
| 2456 | // FIXME: Do we need to bounds check? |
| 2457 | unsigned ArgIdx = Idx.getZExtValue() - 1; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2458 | |
Sebastian Redl | 4a2614e | 2009-11-17 18:02:24 +0000 | [diff] [blame] | 2459 | if (HasImplicitThisParam) { |
| 2460 | if (ArgIdx == 0) { |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2461 | S.Diag(Attr.getLoc(), |
| 2462 | diag::err_format_attribute_implicit_this_format_string) |
| 2463 | << IdxExpr->getSourceRange(); |
Sebastian Redl | 4a2614e | 2009-11-17 18:02:24 +0000 | [diff] [blame] | 2464 | return; |
| 2465 | } |
| 2466 | ArgIdx--; |
| 2467 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2468 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2469 | // make sure the format string is really a string |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2470 | QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2471 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2472 | if (Kind == CFStringFormat) { |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 2473 | if (!isCFStringType(Ty, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2474 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2475 | << "a CFString" << IdxExpr->getSourceRange(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 2476 | return; |
| 2477 | } |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2478 | } else if (Kind == NSStringFormat) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2479 | // FIXME: do we need to check if the type is NSString*? What are the |
| 2480 | // semantics? |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2481 | if (!isNSStringType(Ty, S.Context)) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2482 | // FIXME: Should highlight the actual expression that has the wrong type. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2483 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2484 | << "an NSString" << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2485 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2486 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2487 | } else if (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2488 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2489 | // FIXME: Should highlight the actual expression that has the wrong type. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2490 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2491 | << "a string type" << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2492 | return; |
| 2493 | } |
| 2494 | |
| 2495 | // check the 3rd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2496 | Expr *FirstArgExpr = Attr.getArg(1); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2497 | llvm::APSInt FirstArg(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2498 | if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || |
| 2499 | !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2500 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2501 | << "format" << 3 << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2502 | return; |
| 2503 | } |
| 2504 | |
| 2505 | // check if the function is variadic if the 3rd argument non-zero |
| 2506 | if (FirstArg != 0) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2507 | if (isFunctionOrMethodVariadic(D)) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2508 | ++NumArgs; // +1 for ... |
| 2509 | } else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2510 | S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2511 | return; |
| 2512 | } |
| 2513 | } |
| 2514 | |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2515 | // strftime requires FirstArg to be 0 because it doesn't read from any |
| 2516 | // variable the input is just the current time + the format string. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2517 | if (Kind == StrftimeFormat) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2518 | if (FirstArg != 0) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2519 | S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) |
| 2520 | << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2521 | return; |
| 2522 | } |
| 2523 | // if 0 it disables parameter checking (to use with e.g. va_list) |
| 2524 | } else if (FirstArg != 0 && FirstArg != NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2525 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2526 | << "format" << 3 << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2527 | return; |
| 2528 | } |
| 2529 | |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2530 | // Check whether we already have an equivalent format attribute. |
| 2531 | for (specific_attr_iterator<FormatAttr> |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2532 | i = D->specific_attr_begin<FormatAttr>(), |
| 2533 | e = D->specific_attr_end<FormatAttr>(); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2534 | i != e ; ++i) { |
| 2535 | FormatAttr *f = *i; |
| 2536 | if (f->getType() == Format && |
| 2537 | f->getFormatIdx() == (int)Idx.getZExtValue() && |
| 2538 | f->getFirstArg() == (int)FirstArg.getZExtValue()) { |
| 2539 | // If we don't have a valid location for this attribute, adopt the |
| 2540 | // location. |
| 2541 | if (f->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2542 | f->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2543 | return; |
| 2544 | } |
| 2545 | } |
| 2546 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2547 | D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2548 | Idx.getZExtValue(), |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2549 | FirstArg.getZExtValue())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2550 | } |
| 2551 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2552 | static void handleTransparentUnionAttr(Sema &S, Decl *D, |
| 2553 | const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2554 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2555 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2556 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2557 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2558 | |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2559 | // Try to find the underlying union declaration. |
| 2560 | RecordDecl *RD = 0; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2561 | TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2562 | if (TD && TD->getUnderlyingType()->isUnionType()) |
| 2563 | RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); |
| 2564 | else |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2565 | RD = dyn_cast<RecordDecl>(D); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2566 | |
| 2567 | if (!RD || !RD->isUnion()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2568 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2569 | << Attr.getName() << ExpectedUnion; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2570 | return; |
| 2571 | } |
| 2572 | |
John McCall | 5e1cdac | 2011-10-07 06:10:15 +0000 | [diff] [blame] | 2573 | if (!RD->isCompleteDefinition()) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2574 | S.Diag(Attr.getLoc(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2575 | diag::warn_transparent_union_attribute_not_definition); |
| 2576 | return; |
| 2577 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2578 | |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2579 | RecordDecl::field_iterator Field = RD->field_begin(), |
| 2580 | FieldEnd = RD->field_end(); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2581 | if (Field == FieldEnd) { |
| 2582 | S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); |
| 2583 | return; |
| 2584 | } |
Eli Friedman | bc88745 | 2008-09-02 05:19:23 +0000 | [diff] [blame] | 2585 | |
David Blaikie | 262bc18 | 2012-04-30 02:36:29 +0000 | [diff] [blame] | 2586 | FieldDecl *FirstField = &*Field; |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2587 | QualType FirstType = FirstField->getType(); |
Douglas Gregor | 90cd672 | 2010-06-30 17:24:13 +0000 | [diff] [blame] | 2588 | if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2589 | S.Diag(FirstField->getLocation(), |
Douglas Gregor | 90cd672 | 2010-06-30 17:24:13 +0000 | [diff] [blame] | 2590 | diag::warn_transparent_union_attribute_floating) |
| 2591 | << FirstType->isVectorType() << FirstType; |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2592 | return; |
| 2593 | } |
| 2594 | |
| 2595 | uint64_t FirstSize = S.Context.getTypeSize(FirstType); |
| 2596 | uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); |
| 2597 | for (; Field != FieldEnd; ++Field) { |
| 2598 | QualType FieldType = Field->getType(); |
| 2599 | if (S.Context.getTypeSize(FieldType) != FirstSize || |
| 2600 | S.Context.getTypeAlign(FieldType) != FirstAlign) { |
| 2601 | // Warn if we drop the attribute. |
| 2602 | bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2603 | unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2604 | : S.Context.getTypeAlign(FieldType); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2605 | S.Diag(Field->getLocation(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2606 | diag::warn_transparent_union_attribute_field_size_align) |
| 2607 | << isSize << Field->getDeclName() << FieldBits; |
| 2608 | unsigned FirstBits = isSize? FirstSize : FirstAlign; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2609 | S.Diag(FirstField->getLocation(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2610 | diag::note_transparent_union_first_field_size_align) |
| 2611 | << isSize << FirstBits; |
Eli Friedman | bc88745 | 2008-09-02 05:19:23 +0000 | [diff] [blame] | 2612 | return; |
| 2613 | } |
| 2614 | } |
| 2615 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2616 | RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2617 | } |
| 2618 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2619 | static void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2620 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2621 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2622 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2623 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2624 | Expr *ArgExpr = Attr.getArg(0); |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2625 | StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2626 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2627 | // Make sure that there is a string literal as the annotation's single |
| 2628 | // argument. |
| 2629 | if (!SE) { |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2630 | S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2631 | return; |
| 2632 | } |
Julien Lerouge | 77f68bb | 2011-09-09 22:41:49 +0000 | [diff] [blame] | 2633 | |
| 2634 | // Don't duplicate annotations that are already set. |
| 2635 | for (specific_attr_iterator<AnnotateAttr> |
| 2636 | i = D->specific_attr_begin<AnnotateAttr>(), |
| 2637 | e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { |
| 2638 | if ((*i)->getAnnotation() == SE->getString()) |
| 2639 | return; |
| 2640 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2641 | D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2642 | SE->getString())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2643 | } |
| 2644 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2645 | static void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2646 | // check the attribute arguments. |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2647 | if (Attr.getNumArgs() > 1) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2648 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2649 | return; |
| 2650 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2651 | |
| 2652 | //FIXME: The C++0x version of this attribute has more limited applicabilty |
| 2653 | // than GNU's, and should error out when it is used to specify a |
| 2654 | // weaker alignment, rather than being silently ignored. |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2655 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2656 | if (Attr.getNumArgs() == 0) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2657 | D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2658 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2659 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2660 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2661 | S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2662 | } |
| 2663 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2664 | void Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2665 | // FIXME: Handle pack-expansions here. |
| 2666 | if (DiagnoseUnexpandedParameterPack(E)) |
| 2667 | return; |
| 2668 | |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2669 | if (E->isTypeDependent() || E->isValueDependent()) { |
| 2670 | // Save dependent expressions in the AST to be instantiated. |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2671 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2672 | return; |
| 2673 | } |
| 2674 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2675 | SourceLocation AttrLoc = AttrRange.getBegin(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2676 | // FIXME: Cache the number on the Attr object? |
Chris Lattner | 49e2d34 | 2008-06-28 23:50:44 +0000 | [diff] [blame] | 2677 | llvm::APSInt Alignment(32); |
Richard Smith | 282e7e6 | 2012-02-04 09:53:13 +0000 | [diff] [blame] | 2678 | ExprResult ICE = |
| 2679 | VerifyIntegerConstantExpression(E, &Alignment, |
| 2680 | PDiag(diag::err_attribute_argument_not_int) << "aligned", |
| 2681 | /*AllowFold*/ false); |
| 2682 | if (ICE.isInvalid()) |
Chris Lattner | 49e2d34 | 2008-06-28 23:50:44 +0000 | [diff] [blame] | 2683 | return; |
Daniel Dunbar | 396b2a2 | 2009-02-16 23:37:57 +0000 | [diff] [blame] | 2684 | if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2685 | Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) |
| 2686 | << E->getSourceRange(); |
Daniel Dunbar | 396b2a2 | 2009-02-16 23:37:57 +0000 | [diff] [blame] | 2687 | return; |
| 2688 | } |
| 2689 | |
Richard Smith | 282e7e6 | 2012-02-04 09:53:13 +0000 | [diff] [blame] | 2690 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, ICE.take())); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2691 | } |
| 2692 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2693 | void Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2694 | // FIXME: Cache the number on the Attr object if non-dependent? |
| 2695 | // FIXME: Perform checking of type validity |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2696 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2697 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2698 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2699 | |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 2700 | /// handleModeAttr - This attribute modifies the width of a decl with primitive |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2701 | /// type. |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2702 | /// |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2703 | /// Despite what would be logical, the mode attribute is a decl attribute, not a |
| 2704 | /// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be |
| 2705 | /// HImode, not an intermediate pointer. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2706 | static void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2707 | // This attribute isn't documented, but glibc uses it. It changes |
| 2708 | // the width of an int or unsigned int to the specified size. |
| 2709 | |
| 2710 | // Check that there aren't any arguments |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2711 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2712 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2713 | |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2714 | |
| 2715 | IdentifierInfo *Name = Attr.getParameterName(); |
| 2716 | if (!Name) { |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2717 | S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2718 | return; |
| 2719 | } |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2720 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2721 | StringRef Str = Attr.getParameterName()->getName(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2722 | |
| 2723 | // Normalize the attribute name, __foo__ becomes foo. |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2724 | if (Str.startswith("__") && Str.endswith("__")) |
| 2725 | Str = Str.substr(2, Str.size() - 4); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2726 | |
| 2727 | unsigned DestWidth = 0; |
| 2728 | bool IntegerMode = true; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2729 | bool ComplexMode = false; |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2730 | switch (Str.size()) { |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2731 | case 2: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2732 | switch (Str[0]) { |
| 2733 | case 'Q': DestWidth = 8; break; |
| 2734 | case 'H': DestWidth = 16; break; |
| 2735 | case 'S': DestWidth = 32; break; |
| 2736 | case 'D': DestWidth = 64; break; |
| 2737 | case 'X': DestWidth = 96; break; |
| 2738 | case 'T': DestWidth = 128; break; |
| 2739 | } |
| 2740 | if (Str[1] == 'F') { |
| 2741 | IntegerMode = false; |
| 2742 | } else if (Str[1] == 'C') { |
| 2743 | IntegerMode = false; |
| 2744 | ComplexMode = true; |
| 2745 | } else if (Str[1] != 'I') { |
| 2746 | DestWidth = 0; |
| 2747 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2748 | break; |
| 2749 | case 4: |
| 2750 | // FIXME: glibc uses 'word' to define register_t; this is narrower than a |
| 2751 | // pointer on PIC16 and other embedded platforms. |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2752 | if (Str == "word") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2753 | DestWidth = S.Context.getTargetInfo().getPointerWidth(0); |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2754 | else if (Str == "byte") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2755 | DestWidth = S.Context.getTargetInfo().getCharWidth(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2756 | break; |
| 2757 | case 7: |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2758 | if (Str == "pointer") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2759 | DestWidth = S.Context.getTargetInfo().getPointerWidth(0); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2760 | break; |
| 2761 | } |
| 2762 | |
| 2763 | QualType OldTy; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 2764 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2765 | OldTy = TD->getUnderlyingType(); |
| 2766 | else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) |
| 2767 | OldTy = VD->getType(); |
| 2768 | else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2769 | S.Diag(D->getLocation(), diag::err_attr_wrong_decl) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2770 | << "mode" << Attr.getRange(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2771 | return; |
| 2772 | } |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2773 | |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 2774 | if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2775 | S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); |
| 2776 | else if (IntegerMode) { |
Douglas Gregor | 2ade35e | 2010-06-16 00:17:44 +0000 | [diff] [blame] | 2777 | if (!OldTy->isIntegralOrEnumerationType()) |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2778 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2779 | } else if (ComplexMode) { |
| 2780 | if (!OldTy->isComplexType()) |
| 2781 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2782 | } else { |
| 2783 | if (!OldTy->isFloatingType()) |
| 2784 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2785 | } |
| 2786 | |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2787 | // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t |
| 2788 | // and friends, at least with glibc. |
| 2789 | // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong |
| 2790 | // width on unusual platforms. |
Eli Friedman | f98aba3 | 2009-02-13 02:31:07 +0000 | [diff] [blame] | 2791 | // FIXME: Make sure floating-point mappings are accurate |
| 2792 | // FIXME: Support XF and TF types |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2793 | QualType NewTy; |
| 2794 | switch (DestWidth) { |
| 2795 | case 0: |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2796 | S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2797 | return; |
| 2798 | default: |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2799 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2800 | return; |
| 2801 | case 8: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2802 | if (!IntegerMode) { |
| 2803 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2804 | return; |
| 2805 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2806 | if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2807 | NewTy = S.Context.SignedCharTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2808 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2809 | NewTy = S.Context.UnsignedCharTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2810 | break; |
| 2811 | case 16: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2812 | if (!IntegerMode) { |
| 2813 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2814 | return; |
| 2815 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2816 | if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2817 | NewTy = S.Context.ShortTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2818 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2819 | NewTy = S.Context.UnsignedShortTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2820 | break; |
| 2821 | case 32: |
| 2822 | if (!IntegerMode) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2823 | NewTy = S.Context.FloatTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2824 | else if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2825 | NewTy = S.Context.IntTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2826 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2827 | NewTy = S.Context.UnsignedIntTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2828 | break; |
| 2829 | case 64: |
| 2830 | if (!IntegerMode) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2831 | NewTy = S.Context.DoubleTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2832 | else if (OldTy->isSignedIntegerType()) |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2833 | if (S.Context.getTargetInfo().getLongWidth() == 64) |
Chandler Carruth | aec7caa | 2010-01-26 06:39:24 +0000 | [diff] [blame] | 2834 | NewTy = S.Context.LongTy; |
| 2835 | else |
| 2836 | NewTy = S.Context.LongLongTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2837 | else |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2838 | if (S.Context.getTargetInfo().getLongWidth() == 64) |
Chandler Carruth | aec7caa | 2010-01-26 06:39:24 +0000 | [diff] [blame] | 2839 | NewTy = S.Context.UnsignedLongTy; |
| 2840 | else |
| 2841 | NewTy = S.Context.UnsignedLongLongTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2842 | break; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2843 | case 96: |
| 2844 | NewTy = S.Context.LongDoubleTy; |
| 2845 | break; |
Eli Friedman | f98aba3 | 2009-02-13 02:31:07 +0000 | [diff] [blame] | 2846 | case 128: |
| 2847 | if (!IntegerMode) { |
| 2848 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2849 | return; |
| 2850 | } |
Anders Carlsson | f5f7d86 | 2009-12-29 07:07:36 +0000 | [diff] [blame] | 2851 | if (OldTy->isSignedIntegerType()) |
| 2852 | NewTy = S.Context.Int128Ty; |
| 2853 | else |
| 2854 | NewTy = S.Context.UnsignedInt128Ty; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2855 | break; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2856 | } |
| 2857 | |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2858 | if (ComplexMode) { |
| 2859 | NewTy = S.Context.getComplexType(NewTy); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2860 | } |
| 2861 | |
| 2862 | // Install the new type. |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 2863 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 2864 | // FIXME: preserve existing source info. |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 2865 | TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 2866 | } else |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2867 | cast<ValueDecl>(D)->setType(NewTy); |
| 2868 | } |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 2869 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2870 | static void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2871 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2872 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2873 | return; |
Anders Carlsson | e896d98 | 2009-02-13 08:11:52 +0000 | [diff] [blame] | 2874 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2875 | if (!isFunctionOrMethod(D)) { |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2876 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2877 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2878 | return; |
| 2879 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2880 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2881 | D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2882 | } |
| 2883 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2884 | static void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2885 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2886 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2887 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2888 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2889 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2890 | if (!isa<FunctionDecl>(D)) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +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 | 5bab788 | 2009-02-19 19:16:48 +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) NoInlineAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2897 | } |
| 2898 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2899 | static void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, |
| 2900 | const AttributeList &Attr) { |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2901 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2902 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2903 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2904 | |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2905 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2906 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2907 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2908 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2909 | return; |
| 2910 | } |
| 2911 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2912 | D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2913 | S.Context)); |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2914 | } |
| 2915 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2916 | static void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2917 | if (S.LangOpts.CUDA) { |
| 2918 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2919 | if (Attr.hasParameterOrArguments()) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2920 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 2921 | return; |
| 2922 | } |
| 2923 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2924 | if (!isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2925 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2926 | << Attr.getName() << ExpectedVariable; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2927 | return; |
| 2928 | } |
| 2929 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2930 | D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2931 | } else { |
| 2932 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; |
| 2933 | } |
| 2934 | } |
| 2935 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2936 | static void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2937 | if (S.LangOpts.CUDA) { |
| 2938 | // check the attribute arguments. |
| 2939 | if (Attr.getNumArgs() != 0) { |
| 2940 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 2941 | return; |
| 2942 | } |
| 2943 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2944 | if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2945 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2946 | << Attr.getName() << ExpectedVariableOrFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2947 | return; |
| 2948 | } |
| 2949 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2950 | D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2951 | } else { |
| 2952 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; |
| 2953 | } |
| 2954 | } |
| 2955 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2956 | static void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2957 | if (S.LangOpts.CUDA) { |
| 2958 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2959 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2960 | return; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2961 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2962 | if (!isa<FunctionDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2963 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2964 | << Attr.getName() << ExpectedFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2965 | return; |
| 2966 | } |
| 2967 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2968 | FunctionDecl *FD = cast<FunctionDecl>(D); |
Peter Collingbourne | 2c2c8dd | 2010-12-12 23:02:57 +0000 | [diff] [blame] | 2969 | if (!FD->getResultType()->isVoidType()) { |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 2970 | TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); |
Peter Collingbourne | 2c2c8dd | 2010-12-12 23:02:57 +0000 | [diff] [blame] | 2971 | if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { |
| 2972 | S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) |
| 2973 | << FD->getType() |
| 2974 | << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), |
| 2975 | "void"); |
| 2976 | } else { |
| 2977 | S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) |
| 2978 | << FD->getType(); |
| 2979 | } |
| 2980 | return; |
| 2981 | } |
| 2982 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2983 | D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2984 | } else { |
| 2985 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; |
| 2986 | } |
| 2987 | } |
| 2988 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2989 | static void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2990 | if (S.LangOpts.CUDA) { |
| 2991 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2992 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2993 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2994 | |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2995 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2996 | if (!isa<FunctionDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2997 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2998 | << Attr.getName() << ExpectedFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2999 | return; |
| 3000 | } |
| 3001 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3002 | D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3003 | } else { |
| 3004 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; |
| 3005 | } |
| 3006 | } |
| 3007 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3008 | static void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3009 | if (S.LangOpts.CUDA) { |
| 3010 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3011 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3012 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3013 | |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3014 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3015 | if (!isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3016 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3017 | << Attr.getName() << ExpectedVariable; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3018 | return; |
| 3019 | } |
| 3020 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3021 | D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 3022 | } else { |
| 3023 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; |
| 3024 | } |
| 3025 | } |
| 3026 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3027 | static void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3028 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3029 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3030 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3031 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3032 | FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); |
Chris Lattner | c519743 | 2009-04-14 17:02:11 +0000 | [diff] [blame] | 3033 | if (Fn == 0) { |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3034 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3035 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3036 | return; |
| 3037 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3038 | |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 3039 | if (!Fn->isInlineSpecified()) { |
Chris Lattner | cf2a721 | 2009-04-20 19:12:28 +0000 | [diff] [blame] | 3040 | S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); |
Chris Lattner | c519743 | 2009-04-14 17:02:11 +0000 | [diff] [blame] | 3041 | return; |
| 3042 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3043 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3044 | D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 3045 | } |
| 3046 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3047 | static void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3048 | if (hasDeclarator(D)) return; |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3049 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3050 | // Diagnostic is emitted elsewhere: here we store the (valid) Attr |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3051 | // in the Decl node for syntactic reasoning, e.g., pretty-printing. |
| 3052 | CallingConv CC; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3053 | if (S.CheckCallingConvAttr(Attr, CC)) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3054 | return; |
| 3055 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3056 | if (!isa<ObjCMethodDecl>(D)) { |
| 3057 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 3058 | << Attr.getName() << ExpectedFunctionOrMethod; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3059 | return; |
| 3060 | } |
| 3061 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3062 | switch (Attr.getKind()) { |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3063 | case AttributeList::AT_fastcall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3064 | D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3065 | return; |
| 3066 | case AttributeList::AT_stdcall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3067 | D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3068 | return; |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 3069 | case AttributeList::AT_thiscall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3070 | D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | 04633eb | 2010-08-30 23:30:49 +0000 | [diff] [blame] | 3071 | return; |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3072 | case AttributeList::AT_cdecl: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3073 | D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3074 | return; |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3075 | case AttributeList::AT_pascal: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3076 | D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3077 | return; |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3078 | case AttributeList::AT_pcs: { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3079 | Expr *Arg = Attr.getArg(0); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3080 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3081 | if (!Str || !Str->isAscii()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3082 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3083 | << "pcs" << 1; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3084 | Attr.setInvalid(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3085 | return; |
| 3086 | } |
| 3087 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3088 | StringRef StrRef = Str->getString(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3089 | PcsAttr::PCSType PCS; |
| 3090 | if (StrRef == "aapcs") |
| 3091 | PCS = PcsAttr::AAPCS; |
| 3092 | else if (StrRef == "aapcs-vfp") |
| 3093 | PCS = PcsAttr::AAPCS_VFP; |
| 3094 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3095 | S.Diag(Attr.getLoc(), diag::err_invalid_pcs); |
| 3096 | Attr.setInvalid(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3097 | return; |
| 3098 | } |
| 3099 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3100 | D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3101 | } |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3102 | default: |
| 3103 | llvm_unreachable("unexpected attribute kind"); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3104 | } |
| 3105 | } |
| 3106 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3107 | static void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 3108 | assert(!Attr.isInvalid()); |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3109 | D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3110 | } |
| 3111 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3112 | bool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { |
| 3113 | if (attr.isInvalid()) |
| 3114 | return true; |
| 3115 | |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 3116 | if ((attr.getNumArgs() != 0 && |
| 3117 | !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || |
| 3118 | attr.getParameterName()) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3119 | Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 3120 | attr.setInvalid(); |
| 3121 | return true; |
| 3122 | } |
| 3123 | |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3124 | // TODO: diagnose uses of these conventions on the wrong target. Or, better |
| 3125 | // move to TargetAttributesSema one day. |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3126 | switch (attr.getKind()) { |
| 3127 | case AttributeList::AT_cdecl: CC = CC_C; break; |
| 3128 | case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; |
| 3129 | case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; |
| 3130 | case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; |
| 3131 | case AttributeList::AT_pascal: CC = CC_X86Pascal; break; |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3132 | case AttributeList::AT_pcs: { |
| 3133 | Expr *Arg = attr.getArg(0); |
| 3134 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3135 | if (!Str || !Str->isAscii()) { |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3136 | Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 3137 | << "pcs" << 1; |
| 3138 | attr.setInvalid(); |
| 3139 | return true; |
| 3140 | } |
| 3141 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3142 | StringRef StrRef = Str->getString(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3143 | if (StrRef == "aapcs") { |
| 3144 | CC = CC_AAPCS; |
| 3145 | break; |
| 3146 | } else if (StrRef == "aapcs-vfp") { |
| 3147 | CC = CC_AAPCS_VFP; |
| 3148 | break; |
| 3149 | } |
| 3150 | // FALLS THROUGH |
| 3151 | } |
David Blaikie | 7530c03 | 2012-01-17 06:56:22 +0000 | [diff] [blame] | 3152 | default: llvm_unreachable("unexpected attribute kind"); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3153 | } |
| 3154 | |
| 3155 | return false; |
| 3156 | } |
| 3157 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3158 | static void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3159 | if (hasDeclarator(D)) return; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3160 | |
| 3161 | unsigned numParams; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3162 | if (S.CheckRegparmAttr(Attr, numParams)) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3163 | return; |
| 3164 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3165 | if (!isa<ObjCMethodDecl>(D)) { |
| 3166 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 3167 | << Attr.getName() << ExpectedFunctionOrMethod; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3168 | return; |
| 3169 | } |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3170 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3171 | D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3172 | } |
| 3173 | |
| 3174 | /// Checks a regparm attribute, returning true if it is ill-formed and |
| 3175 | /// otherwise setting numParams to the appropriate value. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3176 | bool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { |
| 3177 | if (Attr.isInvalid()) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3178 | return true; |
| 3179 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3180 | if (Attr.getNumArgs() != 1) { |
| 3181 | Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 3182 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3183 | return true; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3184 | } |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3185 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3186 | Expr *NumParamsExpr = Attr.getArg(0); |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3187 | llvm::APSInt NumParams(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 3188 | if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3189 | !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3190 | Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3191 | << "regparm" << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3192 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3193 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3194 | } |
| 3195 | |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3196 | if (Context.getTargetInfo().getRegParmMax() == 0) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3197 | Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3198 | << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3199 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3200 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3201 | } |
| 3202 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3203 | numParams = NumParams.getZExtValue(); |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3204 | if (numParams > Context.getTargetInfo().getRegParmMax()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3205 | Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3206 | << Context.getTargetInfo().getRegParmMax() << 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 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3211 | return false; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3212 | } |
| 3213 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3214 | static void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3215 | if (S.LangOpts.CUDA) { |
| 3216 | // check the attribute arguments. |
| 3217 | if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 3218 | // FIXME: 0 is not okay. |
| 3219 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3220 | return; |
| 3221 | } |
| 3222 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3223 | if (!isFunctionOrMethod(D)) { |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3224 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3225 | << Attr.getName() << ExpectedFunctionOrMethod; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3226 | return; |
| 3227 | } |
| 3228 | |
| 3229 | Expr *MaxThreadsExpr = Attr.getArg(0); |
| 3230 | llvm::APSInt MaxThreads(32); |
| 3231 | if (MaxThreadsExpr->isTypeDependent() || |
| 3232 | MaxThreadsExpr->isValueDependent() || |
| 3233 | !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { |
| 3234 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 3235 | << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); |
| 3236 | return; |
| 3237 | } |
| 3238 | |
| 3239 | llvm::APSInt MinBlocks(32); |
| 3240 | if (Attr.getNumArgs() > 1) { |
| 3241 | Expr *MinBlocksExpr = Attr.getArg(1); |
| 3242 | if (MinBlocksExpr->isTypeDependent() || |
| 3243 | MinBlocksExpr->isValueDependent() || |
| 3244 | !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { |
| 3245 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 3246 | << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); |
| 3247 | return; |
| 3248 | } |
| 3249 | } |
| 3250 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3251 | D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3252 | MaxThreads.getZExtValue(), |
| 3253 | MinBlocks.getZExtValue())); |
| 3254 | } else { |
| 3255 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; |
| 3256 | } |
| 3257 | } |
| 3258 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3259 | //===----------------------------------------------------------------------===// |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3260 | // Checker-specific attribute handlers. |
| 3261 | //===----------------------------------------------------------------------===// |
| 3262 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3263 | static bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { |
Douglas Gregor | 6c73a29 | 2011-10-09 22:26:49 +0000 | [diff] [blame] | 3264 | return type->isDependentType() || |
| 3265 | type->isObjCObjectPointerType() || |
| 3266 | S.Context.isObjCNSObjectType(type); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3267 | } |
| 3268 | static bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { |
Douglas Gregor | 6c73a29 | 2011-10-09 22:26:49 +0000 | [diff] [blame] | 3269 | return type->isDependentType() || |
| 3270 | type->isPointerType() || |
| 3271 | isValidSubjectOfNSAttribute(S, type); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3272 | } |
| 3273 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3274 | static void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3275 | ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3276 | if (!param) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3277 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3278 | << Attr.getRange() << Attr.getName() << ExpectedParameter; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3279 | return; |
| 3280 | } |
| 3281 | |
| 3282 | bool typeOK, cf; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3283 | if (Attr.getKind() == AttributeList::AT_ns_consumed) { |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3284 | typeOK = isValidSubjectOfNSAttribute(S, param->getType()); |
| 3285 | cf = false; |
| 3286 | } else { |
| 3287 | typeOK = isValidSubjectOfCFAttribute(S, param->getType()); |
| 3288 | cf = true; |
| 3289 | } |
| 3290 | |
| 3291 | if (!typeOK) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3292 | S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3293 | << Attr.getRange() << Attr.getName() << cf; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3294 | return; |
| 3295 | } |
| 3296 | |
| 3297 | if (cf) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3298 | param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3299 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3300 | param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3301 | } |
| 3302 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3303 | static void handleNSConsumesSelfAttr(Sema &S, Decl *D, |
| 3304 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3305 | if (!isa<ObjCMethodDecl>(D)) { |
| 3306 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3307 | << Attr.getRange() << Attr.getName() << ExpectedMethod; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3308 | return; |
| 3309 | } |
| 3310 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3311 | D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3312 | } |
| 3313 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3314 | static void handleNSReturnsRetainedAttr(Sema &S, Decl *D, |
| 3315 | const AttributeList &Attr) { |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3316 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3317 | QualType returnType; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3318 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3319 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3320 | returnType = MD->getResultType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3321 | else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) |
Fariborz Jahanian | 831fb96 | 2011-06-25 00:17:46 +0000 | [diff] [blame] | 3322 | returnType = PD->getType(); |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3323 | else if (S.getLangOpts().ObjCAutoRefCount && hasDeclarator(D) && |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3324 | (Attr.getKind() == AttributeList::AT_ns_returns_retained)) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3325 | return; // ignore: was handled as a type attribute |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3326 | else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3327 | returnType = FD->getResultType(); |
Ted Kremenek | 5dc53c9 | 2009-05-13 21:07:32 +0000 | [diff] [blame] | 3328 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3329 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3330 | << Attr.getRange() << Attr.getName() |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3331 | << ExpectedFunctionOrMethod; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3332 | return; |
| 3333 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3334 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3335 | bool typeOK; |
| 3336 | bool cf; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3337 | switch (Attr.getKind()) { |
David Blaikie | 7530c03 | 2012-01-17 06:56:22 +0000 | [diff] [blame] | 3338 | default: llvm_unreachable("invalid ownership attribute"); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3339 | case AttributeList::AT_ns_returns_autoreleased: |
| 3340 | case AttributeList::AT_ns_returns_retained: |
| 3341 | case AttributeList::AT_ns_returns_not_retained: |
| 3342 | typeOK = isValidSubjectOfNSAttribute(S, returnType); |
| 3343 | cf = false; |
| 3344 | break; |
| 3345 | |
| 3346 | case AttributeList::AT_cf_returns_retained: |
| 3347 | case AttributeList::AT_cf_returns_not_retained: |
| 3348 | typeOK = isValidSubjectOfCFAttribute(S, returnType); |
| 3349 | cf = true; |
| 3350 | break; |
| 3351 | } |
| 3352 | |
| 3353 | if (!typeOK) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3354 | S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3355 | << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3356 | return; |
Ted Kremenek | 5dc53c9 | 2009-05-13 21:07:32 +0000 | [diff] [blame] | 3357 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3358 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3359 | switch (Attr.getKind()) { |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3360 | default: |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 3361 | llvm_unreachable("invalid ownership attribute"); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3362 | case AttributeList::AT_ns_returns_autoreleased: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3363 | D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3364 | S.Context)); |
| 3365 | return; |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3366 | case AttributeList::AT_cf_returns_not_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3367 | D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3368 | S.Context)); |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3369 | return; |
| 3370 | case AttributeList::AT_ns_returns_not_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3371 | D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3372 | S.Context)); |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3373 | return; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3374 | case AttributeList::AT_cf_returns_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3375 | D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3376 | S.Context)); |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3377 | return; |
| 3378 | case AttributeList::AT_ns_returns_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3379 | D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3380 | S.Context)); |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3381 | return; |
| 3382 | }; |
| 3383 | } |
| 3384 | |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3385 | static void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, |
| 3386 | const AttributeList &attr) { |
| 3387 | SourceLocation loc = attr.getLoc(); |
| 3388 | |
| 3389 | ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); |
| 3390 | |
Fariborz Jahanian | 94d55d7 | 2012-04-21 17:51:44 +0000 | [diff] [blame] | 3391 | if (!method) { |
Fariborz Jahanian | 0e78afb | 2012-04-20 22:00:46 +0000 | [diff] [blame] | 3392 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3393 | << SourceRange(loc, loc) << attr.getName() << ExpectedMethod; |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3394 | return; |
| 3395 | } |
| 3396 | |
| 3397 | // Check that the method returns a normal pointer. |
| 3398 | QualType resultType = method->getResultType(); |
Fariborz Jahanian | f2e5945 | 2011-09-30 20:50:23 +0000 | [diff] [blame] | 3399 | |
| 3400 | if (!resultType->isReferenceType() && |
| 3401 | (!resultType->isPointerType() || resultType->isObjCRetainableType())) { |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3402 | S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) |
| 3403 | << SourceRange(loc) |
| 3404 | << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; |
| 3405 | |
| 3406 | // Drop the attribute. |
| 3407 | return; |
| 3408 | } |
| 3409 | |
| 3410 | method->addAttr( |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3411 | ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3412 | } |
| 3413 | |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3414 | /// Handle cf_audited_transfer and cf_unknown_transfer. |
| 3415 | static void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { |
| 3416 | if (!isa<FunctionDecl>(D)) { |
| 3417 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3418 | << A.getRange() << A.getName() << ExpectedFunction; |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3419 | return; |
| 3420 | } |
| 3421 | |
| 3422 | bool IsAudited = (A.getKind() == AttributeList::AT_cf_audited_transfer); |
| 3423 | |
| 3424 | // Check whether there's a conflicting attribute already present. |
| 3425 | Attr *Existing; |
| 3426 | if (IsAudited) { |
| 3427 | Existing = D->getAttr<CFUnknownTransferAttr>(); |
| 3428 | } else { |
| 3429 | Existing = D->getAttr<CFAuditedTransferAttr>(); |
| 3430 | } |
| 3431 | if (Existing) { |
| 3432 | S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) |
| 3433 | << A.getName() |
| 3434 | << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") |
| 3435 | << A.getRange() << Existing->getRange(); |
| 3436 | return; |
| 3437 | } |
| 3438 | |
| 3439 | // All clear; add the attribute. |
| 3440 | if (IsAudited) { |
| 3441 | D->addAttr( |
| 3442 | ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); |
| 3443 | } else { |
| 3444 | D->addAttr( |
| 3445 | ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); |
| 3446 | } |
| 3447 | } |
| 3448 | |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3449 | static void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, |
| 3450 | const AttributeList &Attr) { |
| 3451 | RecordDecl *RD = dyn_cast<RecordDecl>(D); |
| 3452 | if (!RD || RD->isUnion()) { |
| 3453 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3454 | << Attr.getRange() << Attr.getName() << ExpectedStruct; |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3455 | } |
| 3456 | |
| 3457 | IdentifierInfo *ParmName = Attr.getParameterName(); |
| 3458 | |
| 3459 | // In Objective-C, verify that the type names an Objective-C type. |
| 3460 | // We don't want to check this outside of ObjC because people sometimes |
| 3461 | // do crazy C declarations of Objective-C types. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 3462 | if (ParmName && S.getLangOpts().ObjC1) { |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3463 | // Check for an existing type with this name. |
| 3464 | LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), |
| 3465 | Sema::LookupOrdinaryName); |
| 3466 | if (S.LookupName(R, Sc)) { |
| 3467 | NamedDecl *Target = R.getFoundDecl(); |
| 3468 | if (Target && !isa<ObjCInterfaceDecl>(Target)) { |
| 3469 | S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); |
| 3470 | S.Diag(Target->getLocStart(), diag::note_declared_at); |
| 3471 | } |
| 3472 | } |
| 3473 | } |
| 3474 | |
| 3475 | D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, |
| 3476 | ParmName)); |
| 3477 | } |
| 3478 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3479 | static void handleObjCOwnershipAttr(Sema &S, Decl *D, |
| 3480 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3481 | if (hasDeclarator(D)) return; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3482 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3483 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3484 | << Attr.getRange() << Attr.getName() << ExpectedVariable; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3485 | } |
| 3486 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3487 | static void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, |
| 3488 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3489 | if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3490 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3491 | << Attr.getRange() << Attr.getName() << ExpectedVariable; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3492 | return; |
| 3493 | } |
| 3494 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3495 | ValueDecl *vd = cast<ValueDecl>(D); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3496 | QualType type = vd->getType(); |
| 3497 | |
| 3498 | if (!type->isDependentType() && |
| 3499 | !type->isObjCLifetimeType()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3500 | S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3501 | << type; |
| 3502 | return; |
| 3503 | } |
| 3504 | |
| 3505 | Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); |
| 3506 | |
| 3507 | // If we have no lifetime yet, check the lifetime we're presumably |
| 3508 | // going to infer. |
| 3509 | if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) |
| 3510 | lifetime = type->getObjCARCImplicitLifetime(); |
| 3511 | |
| 3512 | switch (lifetime) { |
| 3513 | case Qualifiers::OCL_None: |
| 3514 | assert(type->isDependentType() && |
| 3515 | "didn't infer lifetime for non-dependent type?"); |
| 3516 | break; |
| 3517 | |
| 3518 | case Qualifiers::OCL_Weak: // meaningful |
| 3519 | case Qualifiers::OCL_Strong: // meaningful |
| 3520 | break; |
| 3521 | |
| 3522 | case Qualifiers::OCL_ExplicitNone: |
| 3523 | case Qualifiers::OCL_Autoreleasing: |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3524 | S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3525 | << (lifetime == Qualifiers::OCL_Autoreleasing); |
| 3526 | break; |
| 3527 | } |
| 3528 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3529 | D->addAttr(::new (S.Context) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3530 | ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3531 | } |
| 3532 | |
Charles Davis | f0122fe | 2010-02-16 18:27:26 +0000 | [diff] [blame] | 3533 | static bool isKnownDeclSpecAttr(const AttributeList &Attr) { |
Aaron Ballman | 9428772 | 2012-02-23 22:46:33 +0000 | [diff] [blame] | 3534 | switch (Attr.getKind()) { |
| 3535 | default: |
| 3536 | return false; |
| 3537 | case AttributeList::AT_dllimport: |
| 3538 | case AttributeList::AT_dllexport: |
| 3539 | case AttributeList::AT_uuid: |
| 3540 | case AttributeList::AT_deprecated: |
| 3541 | case AttributeList::AT_noreturn: |
| 3542 | case AttributeList::AT_nothrow: |
| 3543 | case AttributeList::AT_naked: |
| 3544 | case AttributeList::AT_noinline: |
| 3545 | return true; |
| 3546 | } |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3547 | } |
| 3548 | |
| 3549 | //===----------------------------------------------------------------------===// |
| 3550 | // Microsoft specific attribute handlers. |
| 3551 | //===----------------------------------------------------------------------===// |
| 3552 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3553 | static void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Francois Pichet | 62ec1f2 | 2011-09-17 17:15:52 +0000 | [diff] [blame] | 3554 | if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3555 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3556 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3557 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3558 | |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3559 | Expr *Arg = Attr.getArg(0); |
| 3560 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3561 | if (!Str || !Str->isAscii()) { |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3562 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 3563 | << "uuid" << 1; |
| 3564 | return; |
| 3565 | } |
| 3566 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3567 | StringRef StrRef = Str->getString(); |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3568 | |
| 3569 | bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && |
| 3570 | StrRef.back() == '}'; |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3571 | |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3572 | // Validate GUID length. |
| 3573 | if (IsCurly && StrRef.size() != 38) { |
| 3574 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3575 | return; |
| 3576 | } |
| 3577 | if (!IsCurly && StrRef.size() != 36) { |
| 3578 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3579 | return; |
| 3580 | } |
| 3581 | |
Douglas Gregor | f6b8b58 | 2012-03-14 16:55:17 +0000 | [diff] [blame] | 3582 | // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3583 | // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3584 | StringRef::iterator I = StrRef.begin(); |
Anders Carlsson | f89e042 | 2011-01-23 21:07:30 +0000 | [diff] [blame] | 3585 | if (IsCurly) // Skip the optional '{' |
| 3586 | ++I; |
| 3587 | |
| 3588 | for (int i = 0; i < 36; ++i) { |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3589 | if (i == 8 || i == 13 || i == 18 || i == 23) { |
| 3590 | if (*I != '-') { |
| 3591 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3592 | return; |
| 3593 | } |
| 3594 | } else if (!isxdigit(*I)) { |
| 3595 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3596 | return; |
| 3597 | } |
| 3598 | I++; |
| 3599 | } |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3600 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3601 | D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3602 | Str->getString())); |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3603 | } else |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3604 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; |
Charles Davis | f0122fe | 2010-02-16 18:27:26 +0000 | [diff] [blame] | 3605 | } |
| 3606 | |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3607 | //===----------------------------------------------------------------------===// |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3608 | // Top Level Sema Entry Points |
| 3609 | //===----------------------------------------------------------------------===// |
| 3610 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3611 | static void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, |
| 3612 | const AttributeList &Attr) { |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3613 | switch (Attr.getKind()) { |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3614 | case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; |
| 3615 | case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; |
| 3616 | case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3617 | default: |
| 3618 | break; |
| 3619 | } |
| 3620 | } |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3621 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3622 | static void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, |
| 3623 | const AttributeList &Attr) { |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3624 | switch (Attr.getKind()) { |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3625 | case AttributeList::AT_ibaction: handleIBAction(S, D, Attr); break; |
| 3626 | case AttributeList::AT_iboutlet: handleIBOutlet(S, D, Attr); break; |
| 3627 | case AttributeList::AT_iboutletcollection: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3628 | handleIBOutletCollection(S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3629 | case AttributeList::AT_address_space: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 3630 | case AttributeList::AT_opencl_image_access: |
Fariborz Jahanian | ba372b8 | 2009-02-18 17:52:36 +0000 | [diff] [blame] | 3631 | case AttributeList::AT_objc_gc: |
John Thompson | 6e132aa | 2009-12-04 21:51:28 +0000 | [diff] [blame] | 3632 | case AttributeList::AT_vector_size: |
Bob Wilson | 4211bb6 | 2010-11-16 00:32:24 +0000 | [diff] [blame] | 3633 | case AttributeList::AT_neon_vector_type: |
| 3634 | case AttributeList::AT_neon_polyvector_type: |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3635 | // Ignore these, these are type attributes, handled by |
| 3636 | // ProcessTypeAttributes. |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3637 | break; |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3638 | case AttributeList::AT_device: |
| 3639 | case AttributeList::AT_host: |
| 3640 | case AttributeList::AT_overloadable: |
| 3641 | // Ignore, this is a non-inheritable attribute, handled |
| 3642 | // by ProcessNonInheritableDeclAttr. |
| 3643 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3644 | case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; |
| 3645 | case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3646 | case AttributeList::AT_always_inline: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3647 | handleAlwaysInlineAttr (S, D, Attr); break; |
Ted Kremenek | b725232 | 2009-04-10 00:01:14 +0000 | [diff] [blame] | 3648 | case AttributeList::AT_analyzer_noreturn: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3649 | handleAnalyzerNoReturnAttr (S, D, Attr); break; |
| 3650 | case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; |
| 3651 | case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 3652 | case AttributeList::AT_carries_dependency: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3653 | handleDependencyAttr (S, D, Attr); break; |
| 3654 | case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; |
| 3655 | case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; |
| 3656 | case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; |
| 3657 | case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; |
| 3658 | case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3659 | case AttributeList::AT_ext_vector_type: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3660 | handleExtVectorTypeAttr(S, scope, D, Attr); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3661 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3662 | case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; |
| 3663 | case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; |
| 3664 | case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; |
| 3665 | case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3666 | case AttributeList::AT_launch_bounds: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3667 | handleLaunchBoundsAttr(S, D, Attr); |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3668 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3669 | case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; |
| 3670 | case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; |
| 3671 | case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; |
| 3672 | case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; |
| 3673 | case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 3674 | case AttributeList::AT_ownership_returns: |
| 3675 | case AttributeList::AT_ownership_takes: |
| 3676 | case AttributeList::AT_ownership_holds: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3677 | handleOwnershipAttr (S, D, Attr); break; |
| 3678 | case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; |
| 3679 | case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; |
| 3680 | case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; |
| 3681 | case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; |
| 3682 | case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3683 | |
Argyrios Kyrtzidis | b8b0313 | 2011-06-24 00:08:59 +0000 | [diff] [blame] | 3684 | case AttributeList::AT_objc_ownership: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3685 | handleObjCOwnershipAttr(S, D, Attr); break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3686 | case AttributeList::AT_objc_precise_lifetime: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3687 | handleObjCPreciseLifetimeAttr(S, D, Attr); break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3688 | |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3689 | case AttributeList::AT_objc_returns_inner_pointer: |
| 3690 | handleObjCReturnsInnerPointerAttr(S, D, Attr); break; |
| 3691 | |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3692 | case AttributeList::AT_ns_bridged: |
| 3693 | handleNSBridgedAttr(S, scope, D, Attr); break; |
| 3694 | |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3695 | case AttributeList::AT_cf_audited_transfer: |
| 3696 | case AttributeList::AT_cf_unknown_transfer: |
| 3697 | handleCFTransferAttr(S, D, Attr); break; |
| 3698 | |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3699 | // Checker-specific. |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3700 | case AttributeList::AT_cf_consumed: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3701 | case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3702 | case AttributeList::AT_ns_consumes_self: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3703 | handleNSConsumesSelfAttr(S, D, Attr); break; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3704 | |
| 3705 | case AttributeList::AT_ns_returns_autoreleased: |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3706 | case AttributeList::AT_ns_returns_not_retained: |
| 3707 | case AttributeList::AT_cf_returns_not_retained: |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3708 | case AttributeList::AT_ns_returns_retained: |
| 3709 | case AttributeList::AT_cf_returns_retained: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3710 | handleNSReturnsRetainedAttr(S, D, Attr); break; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3711 | |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3712 | case AttributeList::AT_reqd_work_group_size: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3713 | handleReqdWorkGroupSize(S, D, Attr); break; |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 3714 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 3715 | case AttributeList::AT_init_priority: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3716 | handleInitPriorityAttr(S, D, Attr); break; |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 3717 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3718 | case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3719 | case AttributeList::AT_ms_struct: handleMsStructAttr (S, D, Attr); break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3720 | case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; |
| 3721 | case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3722 | case AttributeList::AT_objc_arc_weak_reference_unavailable: |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 3723 | handleArcWeakrefUnavailableAttr (S, D, Attr); |
| 3724 | break; |
Patrick Beard | b2f6820 | 2012-04-06 18:12:22 +0000 | [diff] [blame] | 3725 | case AttributeList::AT_objc_root_class: |
| 3726 | handleObjCRootClassAttr(S, D, Attr); |
| 3727 | break; |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 3728 | case AttributeList::AT_objc_requires_property_definitions: |
| 3729 | handleObjCRequiresPropertyDefsAttr (S, D, Attr); |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 3730 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3731 | case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; |
Rafael Espindola | f87cced | 2011-10-03 14:59:42 +0000 | [diff] [blame] | 3732 | case AttributeList::AT_returns_twice: |
| 3733 | handleReturnsTwiceAttr(S, D, Attr); |
| 3734 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3735 | case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; |
| 3736 | case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; |
| 3737 | case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 3738 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3739 | case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; |
| 3740 | case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; |
| 3741 | case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3742 | case AttributeList::AT_transparent_union: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3743 | handleTransparentUnionAttr(S, D, Attr); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3744 | break; |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 3745 | case AttributeList::AT_objc_exception: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3746 | handleObjCExceptionAttr(S, D, Attr); |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 3747 | break; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 3748 | case AttributeList::AT_objc_method_family: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3749 | handleObjCMethodFamilyAttr(S, D, Attr); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 3750 | break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3751 | case AttributeList::AT_NSObject: handleObjCNSObject (S, D, Attr); break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3752 | case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; |
| 3753 | case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; |
| 3754 | case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; |
| 3755 | case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; |
| 3756 | case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; |
| 3757 | case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; |
| 3758 | case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; |
| 3759 | case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3760 | case AttributeList::IgnoredAttribute: |
Anders Carlsson | 05f8e47 | 2009-02-13 08:16:43 +0000 | [diff] [blame] | 3761 | // Just ignore |
| 3762 | break; |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 3763 | case AttributeList::AT_no_instrument_function: // Interacts with -pg. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3764 | handleNoInstrumentFunctionAttr(S, D, Attr); |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 3765 | break; |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 3766 | case AttributeList::AT_stdcall: |
| 3767 | case AttributeList::AT_cdecl: |
| 3768 | case AttributeList::AT_fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 3769 | case AttributeList::AT_thiscall: |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3770 | case AttributeList::AT_pascal: |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3771 | case AttributeList::AT_pcs: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3772 | handleCallConvAttr(S, D, Attr); |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 3773 | break; |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3774 | case AttributeList::AT_opencl_kernel_function: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3775 | handleOpenCLKernelAttr(S, D, Attr); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3776 | break; |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3777 | case AttributeList::AT_uuid: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3778 | handleUuidAttr(S, D, Attr); |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3779 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3780 | |
| 3781 | // Thread safety attributes: |
| 3782 | case AttributeList::AT_guarded_var: |
| 3783 | handleGuardedVarAttr(S, D, Attr); |
| 3784 | break; |
| 3785 | case AttributeList::AT_pt_guarded_var: |
| 3786 | handleGuardedVarAttr(S, D, Attr, /*pointer = */true); |
| 3787 | break; |
| 3788 | case AttributeList::AT_scoped_lockable: |
| 3789 | handleLockableAttr(S, D, Attr, /*scoped = */true); |
| 3790 | break; |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 3791 | case AttributeList::AT_no_address_safety_analysis: |
| 3792 | handleNoAddressSafetyAttr(S, D, Attr); |
| 3793 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3794 | case AttributeList::AT_no_thread_safety_analysis: |
| 3795 | handleNoThreadSafetyAttr(S, D, Attr); |
| 3796 | break; |
| 3797 | case AttributeList::AT_lockable: |
| 3798 | handleLockableAttr(S, D, Attr); |
| 3799 | break; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 3800 | case AttributeList::AT_guarded_by: |
| 3801 | handleGuardedByAttr(S, D, Attr); |
| 3802 | break; |
| 3803 | case AttributeList::AT_pt_guarded_by: |
| 3804 | handleGuardedByAttr(S, D, Attr, /*pointer = */true); |
| 3805 | break; |
| 3806 | case AttributeList::AT_exclusive_lock_function: |
| 3807 | handleLockFunAttr(S, D, Attr, /*exclusive = */true); |
| 3808 | break; |
| 3809 | case AttributeList::AT_exclusive_locks_required: |
| 3810 | handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); |
| 3811 | break; |
| 3812 | case AttributeList::AT_exclusive_trylock_function: |
| 3813 | handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); |
| 3814 | break; |
| 3815 | case AttributeList::AT_lock_returned: |
| 3816 | handleLockReturnedAttr(S, D, Attr); |
| 3817 | break; |
| 3818 | case AttributeList::AT_locks_excluded: |
| 3819 | handleLocksExcludedAttr(S, D, Attr); |
| 3820 | break; |
| 3821 | case AttributeList::AT_shared_lock_function: |
| 3822 | handleLockFunAttr(S, D, Attr); |
| 3823 | break; |
| 3824 | case AttributeList::AT_shared_locks_required: |
| 3825 | handleLocksRequiredAttr(S, D, Attr); |
| 3826 | break; |
| 3827 | case AttributeList::AT_shared_trylock_function: |
| 3828 | handleTrylockFunAttr(S, D, Attr); |
| 3829 | break; |
| 3830 | case AttributeList::AT_unlock_function: |
| 3831 | handleUnlockFunAttr(S, D, Attr); |
| 3832 | break; |
| 3833 | case AttributeList::AT_acquired_before: |
| 3834 | handleAcquireOrderAttr(S, D, Attr, /*before = */true); |
| 3835 | break; |
| 3836 | case AttributeList::AT_acquired_after: |
| 3837 | handleAcquireOrderAttr(S, D, Attr, /*before = */false); |
| 3838 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3839 | |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3840 | default: |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 3841 | // Ask target about the attribute. |
| 3842 | const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); |
| 3843 | if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) |
Chandler Carruth | 7d5c45e | 2010-07-08 09:42:26 +0000 | [diff] [blame] | 3844 | S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) |
| 3845 | << Attr.getName(); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3846 | break; |
| 3847 | } |
| 3848 | } |
| 3849 | |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3850 | /// ProcessDeclAttribute - Apply the specific attribute to the specified decl if |
| 3851 | /// the attribute applies to decls. If the attribute is a type attribute, just |
| 3852 | /// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to |
| 3853 | /// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3854 | static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, |
| 3855 | const AttributeList &Attr, |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3856 | bool NonInheritable, bool Inheritable) { |
| 3857 | if (Attr.isInvalid()) |
| 3858 | return; |
| 3859 | |
| 3860 | if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) |
| 3861 | // FIXME: Try to deal with other __declspec attributes! |
| 3862 | return; |
| 3863 | |
| 3864 | if (NonInheritable) |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3865 | ProcessNonInheritableDeclAttr(S, scope, D, Attr); |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3866 | |
| 3867 | if (Inheritable) |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3868 | ProcessInheritableDeclAttr(S, scope, D, Attr); |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3869 | } |
| 3870 | |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3871 | /// ProcessDeclAttributeList - Apply all the decl attributes in the specified |
| 3872 | /// attribute list to the specified decl, ignoring any type attributes. |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3873 | void Sema::ProcessDeclAttributeList(Scope *S, Decl *D, |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3874 | const AttributeList *AttrList, |
| 3875 | bool NonInheritable, bool Inheritable) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3876 | for (const AttributeList* l = AttrList; l; l = l->getNext()) { |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3877 | ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3878 | } |
| 3879 | |
| 3880 | // GCC accepts |
| 3881 | // static int a9 __attribute__((weakref)); |
| 3882 | // but that looks really pointless. We reject it. |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3883 | if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3884 | Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 3885 | dyn_cast<NamedDecl>(D)->getNameAsString(); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3886 | return; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3887 | } |
| 3888 | } |
| 3889 | |
Erik Verbruggen | 5f1c822 | 2011-10-13 09:41:32 +0000 | [diff] [blame] | 3890 | // Annotation attributes are the only attributes allowed after an access |
| 3891 | // specifier. |
| 3892 | bool Sema::ProcessAccessDeclAttributeList(AccessSpecDecl *ASDecl, |
| 3893 | const AttributeList *AttrList) { |
| 3894 | for (const AttributeList* l = AttrList; l; l = l->getNext()) { |
| 3895 | if (l->getKind() == AttributeList::AT_annotate) { |
| 3896 | handleAnnotateAttr(*this, ASDecl, *l); |
| 3897 | } else { |
| 3898 | Diag(l->getLoc(), diag::err_only_annotate_after_access_spec); |
| 3899 | return true; |
| 3900 | } |
| 3901 | } |
| 3902 | |
| 3903 | return false; |
| 3904 | } |
| 3905 | |
John McCall | e82247a | 2011-10-01 05:17:03 +0000 | [diff] [blame] | 3906 | /// checkUnusedDeclAttributes - Check a list of attributes to see if it |
| 3907 | /// contains any decl attributes that we should warn about. |
| 3908 | static void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { |
| 3909 | for ( ; A; A = A->getNext()) { |
| 3910 | // Only warn if the attribute is an unignored, non-type attribute. |
| 3911 | if (A->isUsedAsTypeAttr()) continue; |
| 3912 | if (A->getKind() == AttributeList::IgnoredAttribute) continue; |
| 3913 | |
| 3914 | if (A->getKind() == AttributeList::UnknownAttribute) { |
| 3915 | S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) |
| 3916 | << A->getName() << A->getRange(); |
| 3917 | } else { |
| 3918 | S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) |
| 3919 | << A->getName() << A->getRange(); |
| 3920 | } |
| 3921 | } |
| 3922 | } |
| 3923 | |
| 3924 | /// checkUnusedDeclAttributes - Given a declarator which is not being |
| 3925 | /// used to build a declaration, complain about any decl attributes |
| 3926 | /// which might be lying around on it. |
| 3927 | void Sema::checkUnusedDeclAttributes(Declarator &D) { |
| 3928 | ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); |
| 3929 | ::checkUnusedDeclAttributes(*this, D.getAttributes()); |
| 3930 | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) |
| 3931 | ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); |
| 3932 | } |
| 3933 | |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3934 | /// DeclClonePragmaWeak - clone existing decl (maybe definition), |
| 3935 | /// #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] | 3936 | NamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, |
| 3937 | SourceLocation Loc) { |
Ryan Flynn | 7b1fdbd | 2009-07-31 02:52:19 +0000 | [diff] [blame] | 3938 | assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3939 | NamedDecl *NewD = 0; |
| 3940 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3941 | FunctionDecl *NewFD; |
| 3942 | // FIXME: Missing call to CheckFunctionDeclaration(). |
| 3943 | // FIXME: Mangling? |
| 3944 | // FIXME: Is the qualifier info correct? |
| 3945 | // FIXME: Is the DeclContext correct? |
| 3946 | NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), |
| 3947 | Loc, Loc, DeclarationName(II), |
| 3948 | FD->getType(), FD->getTypeSourceInfo(), |
| 3949 | SC_None, SC_None, |
| 3950 | false/*isInlineSpecified*/, |
| 3951 | FD->hasPrototype(), |
| 3952 | false/*isConstexprSpecified*/); |
| 3953 | NewD = NewFD; |
| 3954 | |
| 3955 | if (FD->getQualifier()) |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 3956 | NewFD->setQualifierInfo(FD->getQualifierLoc()); |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3957 | |
| 3958 | // Fake up parameter variables; they are declared as if this were |
| 3959 | // a typedef. |
| 3960 | QualType FDTy = FD->getType(); |
| 3961 | if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { |
| 3962 | SmallVector<ParmVarDecl*, 16> Params; |
| 3963 | for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), |
| 3964 | AE = FT->arg_type_end(); AI != AE; ++AI) { |
| 3965 | ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); |
| 3966 | Param->setScopeInfo(0, Params.size()); |
| 3967 | Params.push_back(Param); |
| 3968 | } |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 3969 | NewFD->setParams(Params); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3970 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3971 | } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { |
| 3972 | NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 3973 | VD->getInnerLocStart(), VD->getLocation(), II, |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 3974 | VD->getType(), VD->getTypeSourceInfo(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 3975 | VD->getStorageClass(), |
| 3976 | VD->getStorageClassAsWritten()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3977 | if (VD->getQualifier()) { |
| 3978 | VarDecl *NewVD = cast<VarDecl>(NewD); |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 3979 | NewVD->setQualifierInfo(VD->getQualifierLoc()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3980 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3981 | } |
| 3982 | return NewD; |
| 3983 | } |
| 3984 | |
| 3985 | /// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak |
| 3986 | /// applied to it, possibly with an alias. |
Ryan Flynn | 7b1fdbd | 2009-07-31 02:52:19 +0000 | [diff] [blame] | 3987 | void Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { |
Chris Lattner | c4f1fb1 | 2009-09-08 18:10:11 +0000 | [diff] [blame] | 3988 | if (W.getUsed()) return; // only do this once |
| 3989 | W.setUsed(true); |
| 3990 | if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) |
| 3991 | IdentifierInfo *NDId = ND->getIdentifier(); |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3992 | NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 3993 | NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, |
| 3994 | NDId->getName())); |
| 3995 | NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); |
Chris Lattner | c4f1fb1 | 2009-09-08 18:10:11 +0000 | [diff] [blame] | 3996 | WeakTopLevelDecl.push_back(NewD); |
| 3997 | // FIXME: "hideous" code from Sema::LazilyCreateBuiltin |
| 3998 | // to insert Decl at TU scope, sorry. |
| 3999 | DeclContext *SavedContext = CurContext; |
| 4000 | CurContext = Context.getTranslationUnitDecl(); |
| 4001 | PushOnScopeChains(NewD, S); |
| 4002 | CurContext = SavedContext; |
| 4003 | } else { // just add weak to existing |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 4004 | ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 4005 | } |
| 4006 | } |
| 4007 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4008 | /// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in |
| 4009 | /// it, apply them to D. This is a bit tricky because PD can have attributes |
| 4010 | /// 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] | 4011 | void Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, |
| 4012 | bool NonInheritable, bool Inheritable) { |
John McCall | d4aff0e | 2010-10-27 00:59:00 +0000 | [diff] [blame] | 4013 | // It's valid to "forward-declare" #pragma weak, in which case we |
| 4014 | // have to do this. |
Douglas Gregor | 31e37b2 | 2011-07-28 18:09:57 +0000 | [diff] [blame] | 4015 | if (Inheritable) { |
| 4016 | LoadExternalWeakUndeclaredIdentifiers(); |
| 4017 | if (!WeakUndeclaredIdentifiers.empty()) { |
| 4018 | if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { |
| 4019 | if (IdentifierInfo *Id = ND->getIdentifier()) { |
| 4020 | llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I |
| 4021 | = WeakUndeclaredIdentifiers.find(Id); |
| 4022 | if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { |
| 4023 | WeakInfo W = I->second; |
| 4024 | DeclApplyPragmaWeak(S, ND, W); |
| 4025 | WeakUndeclaredIdentifiers[Id] = W; |
| 4026 | } |
John McCall | d4aff0e | 2010-10-27 00:59:00 +0000 | [diff] [blame] | 4027 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 4028 | } |
| 4029 | } |
| 4030 | } |
| 4031 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4032 | // Apply decl attributes from the DeclSpec if present. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 4033 | if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4034 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 4035 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4036 | // Walk the declarator structure, applying decl attributes that were in a type |
| 4037 | // position to the decl itself. This handles cases like: |
| 4038 | // int *__attr__(x)** D; |
| 4039 | // when X is a decl attribute. |
| 4040 | for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) |
| 4041 | if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4042 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 4043 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4044 | // Finally, apply any attributes on the decl itself. |
| 4045 | if (const AttributeList *Attrs = PD.getAttributes()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 4046 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 4047 | } |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4048 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4049 | /// Is the given declaration allowed to use a forbidden type? |
| 4050 | static bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { |
| 4051 | // Private ivars are always okay. Unfortunately, people don't |
| 4052 | // always properly make their ivars private, even in system headers. |
| 4053 | // Plus we need to make fields okay, too. |
Fariborz Jahanian | a6b3380 | 2011-09-26 21:23:35 +0000 | [diff] [blame] | 4054 | // Function declarations in sys headers will be marked unavailable. |
| 4055 | if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && |
| 4056 | !isa<FunctionDecl>(decl)) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4057 | return false; |
| 4058 | |
| 4059 | // Require it to be declared in a system header. |
| 4060 | return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); |
| 4061 | } |
| 4062 | |
| 4063 | /// Handle a delayed forbidden-type diagnostic. |
| 4064 | static void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, |
| 4065 | Decl *decl) { |
| 4066 | if (decl && isForbiddenTypeAllowed(S, decl)) { |
| 4067 | decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, |
| 4068 | "this system declaration uses an unsupported type")); |
| 4069 | return; |
| 4070 | } |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 4071 | if (S.getLangOpts().ObjCAutoRefCount) |
Fariborz Jahanian | 175fb10 | 2011-10-03 22:11:57 +0000 | [diff] [blame] | 4072 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { |
| 4073 | // FIXME. we may want to supress diagnostics for all |
| 4074 | // kind of forbidden type messages on unavailable functions. |
| 4075 | if (FD->hasAttr<UnavailableAttr>() && |
| 4076 | diag.getForbiddenTypeDiagnostic() == |
| 4077 | diag::err_arc_array_param_no_ownership) { |
| 4078 | diag.Triggered = true; |
| 4079 | return; |
| 4080 | } |
| 4081 | } |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4082 | |
| 4083 | S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) |
| 4084 | << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); |
| 4085 | diag.Triggered = true; |
| 4086 | } |
| 4087 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4088 | // This duplicates a vector push_back but hides the need to know the |
| 4089 | // size of the type. |
| 4090 | void Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { |
| 4091 | assert(StackSize <= StackCapacity); |
| 4092 | |
| 4093 | // Grow the stack if necessary. |
| 4094 | if (StackSize == StackCapacity) { |
| 4095 | unsigned newCapacity = 2 * StackCapacity + 2; |
| 4096 | char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; |
| 4097 | const char *oldBuffer = (const char*) Stack; |
| 4098 | |
| 4099 | if (StackCapacity) |
| 4100 | memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); |
| 4101 | |
| 4102 | delete[] oldBuffer; |
| 4103 | Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); |
| 4104 | StackCapacity = newCapacity; |
| 4105 | } |
| 4106 | |
| 4107 | assert(StackSize < StackCapacity); |
| 4108 | new (&Stack[StackSize++]) DelayedDiagnostic(diag); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4109 | } |
| 4110 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4111 | void Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, |
| 4112 | Decl *decl) { |
| 4113 | DelayedDiagnostics &DD = S.DelayedDiagnostics; |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4114 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4115 | // Check the invariants. |
| 4116 | assert(DD.StackSize >= state.SavedStackSize); |
| 4117 | assert(state.SavedStackSize >= DD.ActiveStackBase); |
| 4118 | assert(DD.ParsingDepth > 0); |
| 4119 | |
| 4120 | // Drop the parsing depth. |
| 4121 | DD.ParsingDepth--; |
| 4122 | |
| 4123 | // If there are no active diagnostics, we're done. |
| 4124 | if (DD.StackSize == DD.ActiveStackBase) |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4125 | return; |
| 4126 | |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4127 | // We only want to actually emit delayed diagnostics when we |
| 4128 | // successfully parsed a decl. |
John McCall | e8c904f | 2012-01-26 20:04:03 +0000 | [diff] [blame] | 4129 | if (decl) { |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4130 | // We emit all the active diagnostics, not just those starting |
| 4131 | // 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] | 4132 | // decl spec and another for each declarator; in a decl group like: |
| 4133 | // deprecated_typedef foo, *bar, baz(); |
| 4134 | // only the declarator pops will be passed decls. This is correct; |
| 4135 | // we really do need to consider delayed diagnostics from the decl spec |
| 4136 | // for each of the different declarations. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4137 | for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { |
| 4138 | DelayedDiagnostic &diag = DD.Stack[i]; |
| 4139 | if (diag.Triggered) |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4140 | continue; |
| 4141 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4142 | switch (diag.Kind) { |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4143 | case DelayedDiagnostic::Deprecation: |
John McCall | e8c904f | 2012-01-26 20:04:03 +0000 | [diff] [blame] | 4144 | // Don't bother giving deprecation diagnostics if the decl is invalid. |
| 4145 | if (!decl->isInvalidDecl()) |
| 4146 | S.HandleDelayedDeprecationCheck(diag, decl); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4147 | break; |
| 4148 | |
| 4149 | case DelayedDiagnostic::Access: |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4150 | S.HandleDelayedAccessCheck(diag, decl); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4151 | break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4152 | |
| 4153 | case DelayedDiagnostic::ForbiddenType: |
| 4154 | handleDelayedForbiddenType(S, diag, decl); |
| 4155 | break; |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4156 | } |
| 4157 | } |
| 4158 | } |
| 4159 | |
John McCall | 58e6f34 | 2010-03-16 05:22:47 +0000 | [diff] [blame] | 4160 | // Destroy all the delayed diagnostics we're about to pop off. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4161 | for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) |
Douglas Gregor | 2923380 | 2011-03-23 15:13:44 +0000 | [diff] [blame] | 4162 | DD.Stack[i].Destroy(); |
John McCall | 58e6f34 | 2010-03-16 05:22:47 +0000 | [diff] [blame] | 4163 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4164 | DD.StackSize = state.SavedStackSize; |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4165 | } |
| 4166 | |
| 4167 | static bool isDeclDeprecated(Decl *D) { |
| 4168 | do { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 4169 | if (D->isDeprecated()) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4170 | return true; |
Argyrios Kyrtzidis | c076e37 | 2011-10-06 23:23:27 +0000 | [diff] [blame] | 4171 | // A category implicitly has the availability of the interface. |
| 4172 | if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) |
| 4173 | return CatD->getClassInterface()->isDeprecated(); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4174 | } while ((D = cast_or_null<Decl>(D->getDeclContext()))); |
| 4175 | return false; |
| 4176 | } |
| 4177 | |
John McCall | 9c3087b | 2010-08-26 02:13:20 +0000 | [diff] [blame] | 4178 | void Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4179 | Decl *Ctx) { |
| 4180 | if (isDeclDeprecated(Ctx)) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4181 | return; |
| 4182 | |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4183 | DD.Triggered = true; |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4184 | if (!DD.getDeprecationMessage().empty()) |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4185 | Diag(DD.Loc, diag::warn_deprecated_message) |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4186 | << DD.getDeprecationDecl()->getDeclName() |
| 4187 | << DD.getDeprecationMessage(); |
Fariborz Jahanian | b0a6615 | 2012-03-02 21:50:02 +0000 | [diff] [blame] | 4188 | else if (DD.getUnknownObjCClass()) { |
| 4189 | Diag(DD.Loc, diag::warn_deprecated_fwdclass_message) |
| 4190 | << DD.getDeprecationDecl()->getDeclName(); |
| 4191 | Diag(DD.getUnknownObjCClass()->getLocation(), diag::note_forward_class); |
| 4192 | } |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4193 | else |
| 4194 | Diag(DD.Loc, diag::warn_deprecated) |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4195 | << DD.getDeprecationDecl()->getDeclName(); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4196 | } |
| 4197 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 4198 | void Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4199 | SourceLocation Loc, |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4200 | const ObjCInterfaceDecl *UnknownObjCClass) { |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4201 | // Delay if we're currently parsing a declaration. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4202 | if (DelayedDiagnostics.shouldDelayDiagnostics()) { |
Fariborz Jahanian | b0a6615 | 2012-03-02 21:50:02 +0000 | [diff] [blame] | 4203 | DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, |
| 4204 | UnknownObjCClass, |
| 4205 | Message)); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4206 | return; |
| 4207 | } |
| 4208 | |
| 4209 | // Otherwise, don't warn if our current context is deprecated. |
Argyrios Kyrtzidis | 3a38744 | 2011-10-06 23:23:20 +0000 | [diff] [blame] | 4210 | if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4211 | return; |
Fariborz Jahanian | d672436 | 2012-04-23 20:30:52 +0000 | [diff] [blame] | 4212 | if (!Message.empty()) { |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4213 | Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() |
| 4214 | << Message; |
Fariborz Jahanian | d672436 | 2012-04-23 20:30:52 +0000 | [diff] [blame] | 4215 | Diag(D->getLocation(), |
| 4216 | isa<ObjCMethodDecl>(D) ? diag::note_method_declared_at |
| 4217 | : diag::note_previous_decl) << D->getDeclName(); |
| 4218 | } |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4219 | else { |
Peter Collingbourne | 743b82b | 2011-01-02 19:53:12 +0000 | [diff] [blame] | 4220 | if (!UnknownObjCClass) |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4221 | Diag(Loc, diag::warn_deprecated) << D->getDeclName(); |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4222 | else { |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4223 | Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4224 | Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); |
| 4225 | } |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4226 | } |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4227 | } |