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, |
| 38 | ExpectedParameterOrMethod, |
| 39 | ExpectedFunctionMethodOrBlock, |
| 40 | ExpectedClassOrVirtualMethod, |
| 41 | ExpectedFunctionMethodOrParameter, |
| 42 | ExpectedClass, |
| 43 | ExpectedVirtualMethod, |
| 44 | ExpectedClassMember, |
| 45 | ExpectedVariable, |
| 46 | ExpectedMethod, |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 47 | ExpectedVariableFunctionOrLabel, |
| 48 | ExpectedFieldOrGlobalVar |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 49 | }; |
| 50 | |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 51 | //===----------------------------------------------------------------------===// |
| 52 | // Helper functions |
| 53 | //===----------------------------------------------------------------------===// |
| 54 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 55 | static const FunctionType *getFunctionType(const Decl *D, |
Ted Kremenek | a18d7d8 | 2009-08-14 20:49:40 +0000 | [diff] [blame] | 56 | bool blocksToo = true) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 57 | QualType Ty; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 58 | if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 59 | Ty = decl->getType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 60 | else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 61 | Ty = decl->getType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 62 | else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 63 | Ty = decl->getUnderlyingType(); |
| 64 | else |
| 65 | return 0; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 66 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 67 | if (Ty->isFunctionPointerType()) |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 68 | Ty = Ty->getAs<PointerType>()->getPointeeType(); |
Fariborz Jahanian | 755f9d2 | 2009-05-18 17:39:25 +0000 | [diff] [blame] | 69 | else if (blocksToo && Ty->isBlockPointerType()) |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 70 | Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 71 | |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 72 | return Ty->getAs<FunctionType>(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 73 | } |
| 74 | |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 75 | // FIXME: We should provide an abstraction around a method or function |
| 76 | // to provide the following bits of information. |
| 77 | |
Nuno Lopes | d20254f | 2009-12-20 23:11:08 +0000 | [diff] [blame] | 78 | /// isFunction - Return true if the given decl has function |
Ted Kremenek | a18d7d8 | 2009-08-14 20:49:40 +0000 | [diff] [blame] | 79 | /// type (function or function-typed variable). |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 80 | static bool isFunction(const Decl *D) { |
| 81 | return getFunctionType(D, false) != NULL; |
Ted Kremenek | a18d7d8 | 2009-08-14 20:49:40 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | /// isFunctionOrMethod - Return true if the given decl has function |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 85 | /// type (function or function-typed variable) or an Objective-C |
| 86 | /// method. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 87 | static bool isFunctionOrMethod(const Decl *D) { |
| 88 | return isFunction(D)|| isa<ObjCMethodDecl>(D); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 89 | } |
| 90 | |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 91 | /// isFunctionOrMethodOrBlock - Return true if the given decl has function |
| 92 | /// type (function or function-typed variable) or an Objective-C |
| 93 | /// method or a block. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 94 | static bool isFunctionOrMethodOrBlock(const Decl *D) { |
| 95 | if (isFunctionOrMethod(D)) |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 96 | return true; |
| 97 | // check for block is more involved. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 98 | if (const VarDecl *V = dyn_cast<VarDecl>(D)) { |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 99 | QualType Ty = V->getType(); |
| 100 | return Ty->isBlockPointerType(); |
| 101 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 102 | return isa<BlockDecl>(D); |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 103 | } |
| 104 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 105 | /// Return true if the given decl has a declarator that should have |
| 106 | /// been processed by Sema::GetTypeForDeclarator. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 107 | static bool hasDeclarator(const Decl *D) { |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 108 | // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 109 | return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || |
| 110 | isa<ObjCPropertyDecl>(D); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 111 | } |
| 112 | |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 113 | /// hasFunctionProto - Return true if the given decl has a argument |
| 114 | /// information. This decl should have already passed |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 115 | /// isFunctionOrMethod or isFunctionOrMethodOrBlock. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 116 | static bool hasFunctionProto(const Decl *D) { |
| 117 | if (const FunctionType *FnTy = getFunctionType(D)) |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 118 | return isa<FunctionProtoType>(FnTy); |
Fariborz Jahanian | 620d89c | 2009-05-15 23:15:03 +0000 | [diff] [blame] | 119 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 120 | assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 121 | return true; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /// getFunctionOrMethodNumArgs - Return number of function or method |
| 126 | /// arguments. It is an error to call this on a K&R function (use |
| 127 | /// hasFunctionProto first). |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 128 | static unsigned getFunctionOrMethodNumArgs(const Decl *D) { |
| 129 | if (const FunctionType *FnTy = getFunctionType(D)) |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 130 | return cast<FunctionProtoType>(FnTy)->getNumArgs(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 131 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) |
Fariborz Jahanian | d66f22d | 2009-05-19 17:08:59 +0000 | [diff] [blame] | 132 | return BD->getNumParams(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 133 | return cast<ObjCMethodDecl>(D)->param_size(); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 134 | } |
| 135 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 136 | static QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { |
| 137 | if (const FunctionType *FnTy = getFunctionType(D)) |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 138 | return cast<FunctionProtoType>(FnTy)->getArgType(Idx); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 139 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) |
Fariborz Jahanian | d66f22d | 2009-05-19 17:08:59 +0000 | [diff] [blame] | 140 | return BD->getParamDecl(Idx)->getType(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 141 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 142 | return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 143 | } |
| 144 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 145 | static QualType getFunctionOrMethodResultType(const Decl *D) { |
| 146 | if (const FunctionType *FnTy = getFunctionType(D)) |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 147 | return cast<FunctionProtoType>(FnTy)->getResultType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 148 | return cast<ObjCMethodDecl>(D)->getResultType(); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 149 | } |
| 150 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 151 | static bool isFunctionOrMethodVariadic(const Decl *D) { |
| 152 | if (const FunctionType *FnTy = getFunctionType(D)) { |
Douglas Gregor | 72564e7 | 2009-02-26 23:50:07 +0000 | [diff] [blame] | 153 | const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 154 | return proto->isVariadic(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 155 | } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) |
Ted Kremenek | db9a0ae | 2010-04-29 16:48:58 +0000 | [diff] [blame] | 156 | return BD->isVariadic(); |
Fariborz Jahanian | d66f22d | 2009-05-19 17:08:59 +0000 | [diff] [blame] | 157 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 158 | return cast<ObjCMethodDecl>(D)->isVariadic(); |
Daniel Dunbar | 3568249 | 2008-09-26 04:12:28 +0000 | [diff] [blame] | 159 | } |
| 160 | } |
| 161 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 162 | static bool isInstanceMethod(const Decl *D) { |
| 163 | if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 164 | return MethodDecl->isInstance(); |
| 165 | return false; |
| 166 | } |
| 167 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 168 | static inline bool isNSStringType(QualType T, ASTContext &Ctx) { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 169 | const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); |
Chris Lattner | b77792e | 2008-07-26 22:17:49 +0000 | [diff] [blame] | 170 | if (!PT) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 171 | return false; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 172 | |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 173 | ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); |
| 174 | if (!Cls) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 175 | return false; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 176 | |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 177 | IdentifierInfo* ClsName = Cls->getIdentifier(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 178 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 179 | // FIXME: Should we walk the chain of classes? |
| 180 | return ClsName == &Ctx.Idents.get("NSString") || |
| 181 | ClsName == &Ctx.Idents.get("NSMutableString"); |
| 182 | } |
| 183 | |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 184 | static inline bool isCFStringType(QualType T, ASTContext &Ctx) { |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 185 | const PointerType *PT = T->getAs<PointerType>(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 186 | if (!PT) |
| 187 | return false; |
| 188 | |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 189 | const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 190 | if (!RT) |
| 191 | return false; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 192 | |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 193 | const RecordDecl *RD = RT->getDecl(); |
Abramo Bagnara | 465d41b | 2010-05-11 21:36:43 +0000 | [diff] [blame] | 194 | if (RD->getTagKind() != TTK_Struct) |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 195 | return false; |
| 196 | |
| 197 | return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); |
| 198 | } |
| 199 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 200 | /// \brief Check if the attribute has exactly as many args as Num. May |
| 201 | /// output an error. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 202 | static bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, |
| 203 | unsigned int Num) { |
| 204 | if (Attr.getNumArgs() != Num) { |
| 205 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; |
| 206 | return false; |
| 207 | } |
| 208 | |
| 209 | return true; |
| 210 | } |
| 211 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 212 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 213 | /// \brief Check if the attribute has at least as many args as Num. May |
| 214 | /// output an error. |
| 215 | static bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, |
| 216 | unsigned int Num) { |
| 217 | if (Attr.getNumArgs() < Num) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 218 | S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; |
| 219 | return false; |
| 220 | } |
| 221 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 222 | return true; |
| 223 | } |
| 224 | |
| 225 | /// |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 226 | /// \brief Check if passed in Decl is a field or potentially shared global var |
| 227 | /// \return true if the Decl is a field or potentially shared global variable |
| 228 | /// |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 229 | static bool mayBeSharedVariable(const Decl *D) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 230 | if (isa<FieldDecl>(D)) |
| 231 | return true; |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 232 | if (const VarDecl *vd = dyn_cast<VarDecl>(D)) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 233 | return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); |
| 234 | |
| 235 | return false; |
| 236 | } |
| 237 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 238 | /// \brief Check if the passed-in expression is of type int or bool. |
| 239 | static bool isIntOrBool(Expr *Exp) { |
| 240 | QualType QT = Exp->getType(); |
| 241 | return QT->isBooleanType() || QT->isIntegerType(); |
| 242 | } |
| 243 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 244 | /// |
| 245 | /// \brief Check if passed in Decl is a pointer type. |
| 246 | /// Note that this function may produce an error message. |
| 247 | /// \return true if the Decl is a pointer type; false otherwise |
| 248 | /// |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 249 | static bool checkIsPointer(Sema &S, const Decl *D, const AttributeList &Attr) { |
| 250 | if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 251 | QualType QT = vd->getType(); |
Benjamin Kramer | 39997fc | 2011-08-02 04:50:49 +0000 | [diff] [blame] | 252 | if (QT->isAnyPointerType()) |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 253 | return true; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 254 | S.Diag(Attr.getLoc(), diag::warn_pointer_attribute_wrong_type) |
| 255 | << Attr.getName()->getName() << QT; |
| 256 | } else { |
| 257 | S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) |
| 258 | << Attr.getName(); |
| 259 | } |
| 260 | return false; |
| 261 | } |
| 262 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 263 | /// \brief Checks that the passed in QualType either is of RecordType or points |
| 264 | /// to RecordType. Returns the relevant RecordType, null if it does not exit. |
Benjamin Kramer | 7d23b4a | 2011-08-19 04:18:11 +0000 | [diff] [blame] | 265 | static const RecordType *getRecordType(QualType QT) { |
| 266 | if (const RecordType *RT = QT->getAs<RecordType>()) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 267 | return RT; |
Benjamin Kramer | 7d23b4a | 2011-08-19 04:18:11 +0000 | [diff] [blame] | 268 | |
| 269 | // Now check if we point to record type. |
| 270 | if (const PointerType *PT = QT->getAs<PointerType>()) |
| 271 | return PT->getPointeeType()->getAs<RecordType>(); |
| 272 | |
| 273 | return 0; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 274 | } |
| 275 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 276 | /// \brief Thread Safety Analysis: Checks that the passed in RecordType |
| 277 | /// resolves to a lockable object. May flag an error. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 278 | static bool checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, |
| 279 | const RecordType *RT) { |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 280 | // Flag error if could not get record type for this argument. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 281 | if (!RT) { |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 282 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_class) |
| 283 | << Attr.getName(); |
| 284 | return false; |
| 285 | } |
DeLesley Hutchins | 634b293 | 2012-02-16 17:15:51 +0000 | [diff] [blame] | 286 | // Don't check for lockable if the class hasn't been defined yet. |
| 287 | if (RT->isIncompleteType()) |
| 288 | return true; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 289 | // Flag error if the type is not lockable. |
Benjamin Kramer | d77ba89 | 2011-09-03 03:30:59 +0000 | [diff] [blame] | 290 | if (!RT->getDecl()->getAttr<LockableAttr>()) { |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 291 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_lockable) |
| 292 | << Attr.getName(); |
| 293 | return false; |
| 294 | } |
| 295 | return true; |
| 296 | } |
| 297 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 298 | /// \brief Thread Safety Analysis: Checks that all attribute arguments, starting |
| 299 | /// from Sidx, resolve to a lockable object. May flag an error. |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 300 | /// \param Sidx The attribute argument index to start checking with. |
| 301 | /// \param ParamIdxOk Whether an argument can be indexing into a function |
| 302 | /// parameter list. |
| 303 | static bool checkAttrArgsAreLockableObjs(Sema &S, Decl *D, |
| 304 | const AttributeList &Attr, |
| 305 | SmallVectorImpl<Expr*> &Args, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 306 | int Sidx = 0, |
| 307 | bool ParamIdxOk = false) { |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 308 | for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 309 | Expr *ArgExp = Attr.getArg(Idx); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 310 | |
Caitlin Sadowski | ed9d84a | 2011-09-08 17:42:31 +0000 | [diff] [blame] | 311 | if (ArgExp->isTypeDependent()) { |
| 312 | // FIXME -- need to processs this again on template instantiation |
| 313 | Args.push_back(ArgExp); |
| 314 | continue; |
| 315 | } |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 316 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 317 | QualType ArgTy = ArgExp->getType(); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 318 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 319 | // First see if we can just cast to record type, or point to record type. |
| 320 | const RecordType *RT = getRecordType(ArgTy); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 321 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 322 | // Now check if we index into a record type function param. |
| 323 | if(!RT && ParamIdxOk) { |
| 324 | FunctionDecl *FD = dyn_cast<FunctionDecl>(D); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 325 | IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); |
| 326 | if(FD && IL) { |
| 327 | unsigned int NumParams = FD->getNumParams(); |
| 328 | llvm::APInt ArgValue = IL->getValue(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 329 | uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); |
| 330 | uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; |
| 331 | if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 332 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) |
| 333 | << Attr.getName() << Idx + 1 << NumParams; |
| 334 | return false; |
| 335 | } |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 336 | ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); |
| 337 | RT = getRecordType(ArgTy); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 338 | } |
| 339 | } |
| 340 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 341 | if (!checkForLockableRecord(S, D, Attr, RT)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 342 | return false; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 343 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 344 | Args.push_back(ArgExp); |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 345 | } |
| 346 | return true; |
| 347 | } |
| 348 | |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 349 | //===----------------------------------------------------------------------===// |
Chris Lattner | e5c5ee1 | 2008-06-29 00:16:31 +0000 | [diff] [blame] | 350 | // Attribute Implementations |
| 351 | //===----------------------------------------------------------------------===// |
| 352 | |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 353 | // FIXME: All this manual attribute parsing code is gross. At the |
| 354 | // least add some helper functions to check most argument patterns (# |
| 355 | // and types of args). |
| 356 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 357 | static void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 358 | bool pointer = false) { |
| 359 | assert(!Attr.isInvalid()); |
| 360 | |
| 361 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 362 | return; |
| 363 | |
| 364 | // D must be either a member field or global (potentially shared) variable. |
| 365 | if (!mayBeSharedVariable(D)) { |
| 366 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 367 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 368 | return; |
| 369 | } |
| 370 | |
| 371 | if (pointer && !checkIsPointer(S, D, Attr)) |
| 372 | return; |
| 373 | |
| 374 | if (pointer) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 375 | D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 376 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 377 | D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 378 | } |
| 379 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 380 | static void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 381 | bool pointer = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 382 | assert(!Attr.isInvalid()); |
| 383 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 384 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 385 | return; |
| 386 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 387 | Expr *Arg = Attr.getArg(0); |
| 388 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 389 | // D must be either a member field or global (potentially shared) variable. |
| 390 | if (!mayBeSharedVariable(D)) { |
| 391 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 392 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 393 | return; |
| 394 | } |
| 395 | |
| 396 | if (pointer && !checkIsPointer(S, D, Attr)) |
| 397 | return; |
| 398 | |
DeLesley Hutchins | 7b9ff0c | 2012-01-20 22:37:06 +0000 | [diff] [blame] | 399 | if (!Arg->isTypeDependent()) { |
| 400 | if (!checkForLockableRecord(S, D, Attr, getRecordType(Arg->getType()))) |
| 401 | return; |
| 402 | // FIXME -- semantic checks for dependent attributes |
| 403 | } |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 404 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 405 | if (pointer) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 406 | D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 407 | S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 408 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 409 | D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 410 | } |
| 411 | |
| 412 | |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 413 | static void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 414 | bool scoped = false) { |
| 415 | assert(!Attr.isInvalid()); |
| 416 | |
| 417 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 418 | return; |
| 419 | |
Caitlin Sadowski | 1748b12 | 2011-09-16 00:35:54 +0000 | [diff] [blame] | 420 | // FIXME: Lockable structs for C code. |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 421 | if (!isa<CXXRecordDecl>(D)) { |
| 422 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 423 | << Attr.getName() << ExpectedClass; |
| 424 | return; |
| 425 | } |
| 426 | |
| 427 | if (scoped) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 428 | D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 429 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 430 | D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 431 | } |
| 432 | |
| 433 | static void handleNoThreadSafetyAttr(Sema &S, Decl *D, |
| 434 | const AttributeList &Attr) { |
| 435 | assert(!Attr.isInvalid()); |
| 436 | |
| 437 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 438 | return; |
| 439 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 440 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 441 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 442 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 443 | return; |
| 444 | } |
| 445 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 446 | D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 447 | S.Context)); |
| 448 | } |
| 449 | |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 450 | static void handleNoAddressSafetyAttr(Sema &S, Decl *D, |
| 451 | const AttributeList &Attr) { |
| 452 | assert(!Attr.isInvalid()); |
| 453 | |
| 454 | if (!checkAttributeNumArgs(S, Attr, 0)) |
| 455 | return; |
| 456 | |
| 457 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
| 458 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 459 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 460 | return; |
| 461 | } |
| 462 | |
| 463 | D->addAttr(::new (S.Context) NoAddressSafetyAnalysisAttr(Attr.getRange(), |
| 464 | S.Context)); |
| 465 | } |
| 466 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 467 | static void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, |
| 468 | bool before) { |
| 469 | assert(!Attr.isInvalid()); |
| 470 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 471 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 472 | return; |
| 473 | |
| 474 | // D must be either a member field or global (potentially shared) variable. |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 475 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
| 476 | if (!VD || !mayBeSharedVariable(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 477 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 478 | << Attr.getName() << ExpectedFieldOrGlobalVar; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 479 | return; |
| 480 | } |
| 481 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 482 | // Check that this attribute only applies to lockable types |
| 483 | QualType QT = VD->getType(); |
| 484 | if (!QT->isDependentType()) { |
| 485 | const RecordType *RT = getRecordType(QT); |
| 486 | if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { |
| 487 | S.Diag(Attr.getLoc(), diag::err_attribute_decl_not_lockable) |
| 488 | << Attr.getName(); |
| 489 | return; |
| 490 | } |
| 491 | } |
| 492 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 493 | SmallVector<Expr*, 1> Args; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 494 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 495 | if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 496 | return; |
| 497 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 498 | unsigned Size = Args.size(); |
| 499 | assert(Size == Attr.getNumArgs()); |
| 500 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 501 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 502 | if (before) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 503 | D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 504 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 505 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 506 | D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 507 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | static void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 511 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 512 | assert(!Attr.isInvalid()); |
| 513 | |
| 514 | // zero or more arguments ok |
| 515 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 516 | // check that the attribute is applied to a function |
| 517 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 518 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 519 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 520 | return; |
| 521 | } |
| 522 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 523 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 524 | SmallVector<Expr*, 1> Args; |
| 525 | if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 526 | return; |
| 527 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 528 | unsigned Size = Args.size(); |
| 529 | assert(Size == Attr.getNumArgs()); |
| 530 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 531 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 532 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 533 | D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 534 | S.Context, StartArg, |
| 535 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 536 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 537 | D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 538 | S.Context, StartArg, |
| 539 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | static void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 543 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 544 | assert(!Attr.isInvalid()); |
| 545 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 546 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 547 | return; |
| 548 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 549 | |
| 550 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 551 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 552 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 553 | return; |
| 554 | } |
| 555 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 556 | if (!isIntOrBool(Attr.getArg(0))) { |
| 557 | S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) |
| 558 | << Attr.getName(); |
| 559 | return; |
| 560 | } |
| 561 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 562 | SmallVector<Expr*, 2> Args; |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 563 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 564 | if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 565 | return; |
| 566 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 567 | unsigned Size = Args.size(); |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 568 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 569 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 570 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 571 | D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 572 | S.Context, |
Caitlin Sadowski | 69f5d14 | 2011-09-15 17:50:19 +0000 | [diff] [blame] | 573 | Attr.getArg(0), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 574 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 575 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 576 | D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), |
Caitlin Sadowski | 69f5d14 | 2011-09-15 17:50:19 +0000 | [diff] [blame] | 577 | S.Context, |
| 578 | Attr.getArg(0), |
| 579 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 580 | } |
| 581 | |
| 582 | static void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 583 | bool exclusive = false) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 584 | assert(!Attr.isInvalid()); |
| 585 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 586 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 587 | return; |
| 588 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 589 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 590 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 591 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 592 | return; |
| 593 | } |
| 594 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 595 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 596 | SmallVector<Expr*, 1> Args; |
| 597 | if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 598 | return; |
| 599 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 600 | unsigned Size = Args.size(); |
| 601 | assert(Size == Attr.getNumArgs()); |
| 602 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 603 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 604 | if (exclusive) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 605 | D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 606 | S.Context, StartArg, |
| 607 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 608 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 609 | D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 610 | S.Context, StartArg, |
| 611 | Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 612 | } |
| 613 | |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 614 | static void handleUnlockFunAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 615 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 616 | assert(!Attr.isInvalid()); |
| 617 | |
| 618 | // zero or more arguments ok |
| 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; |
| 628 | if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 629 | return; |
| 630 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 631 | unsigned Size = Args.size(); |
| 632 | assert(Size == Attr.getNumArgs()); |
| 633 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 634 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 635 | D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 636 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 637 | } |
| 638 | |
| 639 | static void handleLockReturnedAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 640 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 641 | assert(!Attr.isInvalid()); |
| 642 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 643 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 644 | return; |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 645 | Expr *Arg = Attr.getArg(0); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 646 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 647 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 648 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 649 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 650 | return; |
| 651 | } |
| 652 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 653 | if (Arg->isTypeDependent()) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 654 | return; |
| 655 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 656 | // check that the argument is lockable object |
| 657 | if (!checkForLockableRecord(S, D, Attr, getRecordType(Arg->getType()))) |
| 658 | return; |
| 659 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 660 | D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, Arg)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 661 | } |
| 662 | |
| 663 | static void handleLocksExcludedAttr(Sema &S, Decl *D, |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 664 | const AttributeList &Attr) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 665 | assert(!Attr.isInvalid()); |
| 666 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 667 | if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 668 | return; |
| 669 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 670 | if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 671 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 672 | << Attr.getName() << ExpectedFunctionOrMethod; |
| 673 | return; |
| 674 | } |
| 675 | |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 676 | // check that all arguments are lockable objects |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 677 | SmallVector<Expr*, 1> Args; |
| 678 | if (!checkAttrArgsAreLockableObjs(S, D, Attr, Args)) |
Caitlin Sadowski | b51e031 | 2011-08-09 17:59:31 +0000 | [diff] [blame] | 679 | return; |
| 680 | |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 681 | unsigned Size = Args.size(); |
| 682 | assert(Size == Attr.getNumArgs()); |
| 683 | Expr **StartArg = Size == 0 ? 0 : &Args[0]; |
| 684 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 685 | D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, |
Caitlin Sadowski | 3ac1fbc | 2011-08-23 18:46:34 +0000 | [diff] [blame] | 686 | StartArg, Size)); |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 690 | static void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, |
| 691 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 692 | TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 693 | if (tDecl == 0) { |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 694 | S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 695 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 696 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 697 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 698 | QualType curType = tDecl->getUnderlyingType(); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 699 | |
| 700 | Expr *sizeExpr; |
| 701 | |
| 702 | // Special case where the argument is a template id. |
| 703 | if (Attr.getParameterName()) { |
John McCall | f7a1a74 | 2009-11-24 19:00:30 +0000 | [diff] [blame] | 704 | CXXScopeSpec SS; |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 705 | SourceLocation TemplateKWLoc; |
John McCall | f7a1a74 | 2009-11-24 19:00:30 +0000 | [diff] [blame] | 706 | UnqualifiedId id; |
| 707 | id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); |
Douglas Gregor | 4ac0140 | 2011-06-15 16:02:29 +0000 | [diff] [blame] | 708 | |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 709 | ExprResult Size = S.ActOnIdExpression(scope, SS, TemplateKWLoc, id, |
| 710 | false, false); |
Douglas Gregor | 4ac0140 | 2011-06-15 16:02:29 +0000 | [diff] [blame] | 711 | if (Size.isInvalid()) |
| 712 | return; |
| 713 | |
| 714 | sizeExpr = Size.get(); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 715 | } else { |
| 716 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 717 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 718 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 719 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 720 | sizeExpr = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 721 | } |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 722 | |
| 723 | // Instantiate/Install the vector type, and let Sema build the type for us. |
| 724 | // This will run the reguired checks. |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 725 | QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 726 | if (!T.isNull()) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 727 | // FIXME: preserve the old source info. |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 728 | tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 729 | |
Douglas Gregor | 9cdda0c | 2009-06-17 21:51:59 +0000 | [diff] [blame] | 730 | // Remember this typedef decl, we will need it later for diagnostics. |
| 731 | S.ExtVectorDecls.push_back(tDecl); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 732 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 733 | } |
| 734 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 735 | static void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 736 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 737 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 738 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 739 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 740 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 741 | TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 742 | else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 743 | // If the alignment is less than or equal to 8 bits, the packed attribute |
| 744 | // has no effect. |
| 745 | if (!FD->getType()->isIncompleteType() && |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 746 | S.Context.getTypeAlign(FD->getType()) <= 8) |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 747 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) |
Chris Lattner | 08631c5 | 2008-11-23 21:45:46 +0000 | [diff] [blame] | 748 | << Attr.getName() << FD->getType(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 749 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 750 | FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 751 | } else |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 752 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 753 | } |
| 754 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 755 | static void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 756 | if (TagDecl *TD = dyn_cast<TagDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 757 | TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); |
Fariborz Jahanian | c1a0a73 | 2011-04-26 17:54:40 +0000 | [diff] [blame] | 758 | else |
| 759 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
| 760 | } |
| 761 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 762 | static void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 763 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 764 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 765 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 766 | |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 767 | // The IBAction attributes only apply to instance methods. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 768 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 769 | if (MD->isInstanceMethod()) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 770 | D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 771 | return; |
| 772 | } |
| 773 | |
Ted Kremenek | 4ee2bb1 | 2011-02-04 06:54:16 +0000 | [diff] [blame] | 774 | S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 775 | } |
| 776 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 777 | static bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { |
| 778 | // The IBOutlet/IBOutletCollection attributes only apply to instance |
| 779 | // variables or properties of Objective-C classes. The outlet must also |
| 780 | // have an object reference type. |
| 781 | if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { |
| 782 | if (!VD->getType()->getAs<ObjCObjectPointerType>()) { |
Ted Kremenek | 0bfaf06 | 2011-11-01 18:08:35 +0000 | [diff] [blame] | 783 | S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 784 | << Attr.getName() << VD->getType() << 0; |
| 785 | return false; |
| 786 | } |
| 787 | } |
| 788 | else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { |
| 789 | if (!PD->getType()->getAs<ObjCObjectPointerType>()) { |
Ted Kremenek | 0bfaf06 | 2011-11-01 18:08:35 +0000 | [diff] [blame] | 790 | S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 791 | << Attr.getName() << PD->getType() << 1; |
| 792 | return false; |
| 793 | } |
| 794 | } |
| 795 | else { |
| 796 | S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); |
| 797 | return false; |
| 798 | } |
| 799 | |
| 800 | return true; |
| 801 | } |
| 802 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 803 | static void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 804 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 805 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 806 | return; |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 807 | |
| 808 | if (!checkIBOutletCommon(S, D, Attr)) |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 809 | return; |
Ted Kremenek | 63e5d7c | 2010-02-18 03:08:58 +0000 | [diff] [blame] | 810 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 811 | D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 96329d4 | 2008-07-15 22:26:48 +0000 | [diff] [blame] | 812 | } |
| 813 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 814 | static void handleIBOutletCollection(Sema &S, Decl *D, |
| 815 | const AttributeList &Attr) { |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 816 | |
| 817 | // The iboutletcollection attribute can have zero or one arguments. |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 818 | if (Attr.getParameterName() && Attr.getNumArgs() > 0) { |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 819 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 820 | return; |
| 821 | } |
| 822 | |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 823 | if (!checkIBOutletCommon(S, D, Attr)) |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 824 | return; |
Ted Kremenek | 2f041d0 | 2011-09-29 07:02:25 +0000 | [diff] [blame] | 825 | |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 826 | IdentifierInfo *II = Attr.getParameterName(); |
| 827 | if (!II) |
Fariborz Jahanian | f4072ae | 2011-10-18 19:54:31 +0000 | [diff] [blame] | 828 | II = &S.Context.Idents.get("NSObject"); |
Fariborz Jahanian | 3a3400b | 2010-08-17 21:39:27 +0000 | [diff] [blame] | 829 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 830 | ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 831 | S.getScopeForContext(D->getDeclContext()->getParent())); |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 832 | if (!TypeRep) { |
| 833 | S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; |
| 834 | return; |
| 835 | } |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 836 | QualType QT = TypeRep.get(); |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 837 | // Diagnose use of non-object type in iboutletcollection attribute. |
| 838 | // FIXME. Gnu attribute extension ignores use of builtin types in |
| 839 | // attributes. So, __attribute__((iboutletcollection(char))) will be |
| 840 | // treated as __attribute__((iboutletcollection())). |
Fariborz Jahanian | f4072ae | 2011-10-18 19:54:31 +0000 | [diff] [blame] | 841 | if (!QT->isObjCIdType() && !QT->isObjCObjectType()) { |
Fariborz Jahanian | a8fb24f | 2010-08-17 20:23:12 +0000 | [diff] [blame] | 842 | S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; |
| 843 | return; |
| 844 | } |
Argyrios Kyrtzidis | f1e7af3 | 2011-09-13 18:41:59 +0000 | [diff] [blame] | 845 | D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, |
| 846 | QT, Attr.getParameterLoc())); |
Ted Kremenek | 857e918 | 2010-05-19 17:38:06 +0000 | [diff] [blame] | 847 | } |
| 848 | |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 849 | static void possibleTransparentUnionPointerType(QualType &T) { |
Fariborz Jahanian | 68fe96a | 2011-06-27 21:12:03 +0000 | [diff] [blame] | 850 | if (const RecordType *UT = T->getAsUnionType()) |
| 851 | if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { |
| 852 | RecordDecl *UD = UT->getDecl(); |
| 853 | for (RecordDecl::field_iterator it = UD->field_begin(), |
| 854 | itend = UD->field_end(); it != itend; ++it) { |
| 855 | QualType QT = it->getType(); |
| 856 | if (QT->isAnyPointerType() || QT->isBlockPointerType()) { |
| 857 | T = QT; |
| 858 | return; |
| 859 | } |
| 860 | } |
| 861 | } |
| 862 | } |
| 863 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 864 | static void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 865 | // GCC ignores the nonnull attribute on K&R style function prototypes, so we |
| 866 | // ignore it as well |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 867 | if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 868 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 869 | << Attr.getName() << ExpectedFunction; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 870 | return; |
| 871 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 872 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 873 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 874 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 875 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 876 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 877 | |
| 878 | // The nonnull attribute only applies to pointers. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 879 | SmallVector<unsigned, 10> NonNullArgs; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 880 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 881 | for (AttributeList::arg_iterator I=Attr.arg_begin(), |
| 882 | E=Attr.arg_end(); I!=E; ++I) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 883 | |
| 884 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 885 | // The argument must be an integer constant expression. |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 886 | Expr *Ex = *I; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 887 | llvm::APSInt ArgNum(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 888 | if (Ex->isTypeDependent() || Ex->isValueDependent() || |
| 889 | !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 890 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 891 | << "nonnull" << Ex->getSourceRange(); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 892 | return; |
| 893 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 894 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 895 | unsigned x = (unsigned) ArgNum.getZExtValue(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 896 | |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 897 | if (x < 1 || x > NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 898 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 30bc965 | 2008-11-19 07:22:31 +0000 | [diff] [blame] | 899 | << "nonnull" << I.getArgNum() << Ex->getSourceRange(); |
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 | |
Ted Kremenek | 465172f | 2008-07-21 22:09:15 +0000 | [diff] [blame] | 903 | --x; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 904 | if (HasImplicitThisParam) { |
| 905 | if (x == 0) { |
| 906 | S.Diag(Attr.getLoc(), |
| 907 | diag::err_attribute_invalid_implicit_this_argument) |
| 908 | << "nonnull" << Ex->getSourceRange(); |
| 909 | return; |
| 910 | } |
| 911 | --x; |
| 912 | } |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 913 | |
| 914 | // Is the function argument a pointer type? |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 915 | QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 916 | possibleTransparentUnionPointerType(T); |
Fariborz Jahanian | 68fe96a | 2011-06-27 21:12:03 +0000 | [diff] [blame] | 917 | |
Ted Kremenek | dbfe99e | 2009-07-15 23:23:54 +0000 | [diff] [blame] | 918 | if (!T->isAnyPointerType() && !T->isBlockPointerType()) { |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 919 | // FIXME: Should also highlight argument in decl. |
Douglas Gregor | c9ef405 | 2010-08-12 18:48:43 +0000 | [diff] [blame] | 920 | S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 921 | << "nonnull" << Ex->getSourceRange(); |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 922 | continue; |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 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 | NonNullArgs.push_back(x); |
| 926 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 927 | |
| 928 | // If no arguments were specified to __attribute__((nonnull)) then all pointer |
| 929 | // arguments have a nonnull attribute. |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 930 | if (NonNullArgs.empty()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 931 | for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { |
| 932 | QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 933 | possibleTransparentUnionPointerType(T); |
Ted Kremenek | dbfe99e | 2009-07-15 23:23:54 +0000 | [diff] [blame] | 934 | if (T->isAnyPointerType() || T->isBlockPointerType()) |
Daniel Dunbar | d3f2c10 | 2008-10-19 02:04:16 +0000 | [diff] [blame] | 935 | NonNullArgs.push_back(I); |
Ted Kremenek | 46bbaca | 2008-11-18 06:52:58 +0000 | [diff] [blame] | 936 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 937 | |
Ted Kremenek | ee1c08c | 2010-10-21 18:49:36 +0000 | [diff] [blame] | 938 | // No pointer arguments? |
Fariborz Jahanian | 60acea4 | 2010-09-27 19:05:51 +0000 | [diff] [blame] | 939 | if (NonNullArgs.empty()) { |
| 940 | // Warn the trivial case only if attribute is not coming from a |
| 941 | // macro instantiation. |
| 942 | if (Attr.getLoc().isFileID()) |
| 943 | S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 944 | return; |
Fariborz Jahanian | 60acea4 | 2010-09-27 19:05:51 +0000 | [diff] [blame] | 945 | } |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 946 | } |
Ted Kremenek | 7fb43c1 | 2008-09-01 19:57:52 +0000 | [diff] [blame] | 947 | |
| 948 | unsigned* start = &NonNullArgs[0]; |
| 949 | unsigned size = NonNullArgs.size(); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 950 | llvm::array_pod_sort(start, start + size); |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 951 | D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 952 | size)); |
Ted Kremenek | eb2b2a3 | 2008-07-21 21:53:04 +0000 | [diff] [blame] | 953 | } |
| 954 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 955 | static void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 956 | // This attribute must be applied to a function declaration. |
| 957 | // The first argument to the attribute must be a string, |
| 958 | // the name of the resource, for example "malloc". |
| 959 | // The following arguments must be argument indexes, the arguments must be |
| 960 | // of integer type for Returns, otherwise of pointer type. |
| 961 | // 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] | 962 | // after being held. free() should be __attribute((ownership_takes)), whereas |
| 963 | // a list append function may well be __attribute((ownership_holds)). |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 964 | |
| 965 | if (!AL.getParameterName()) { |
| 966 | S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) |
| 967 | << AL.getName()->getName() << 1; |
| 968 | return; |
| 969 | } |
| 970 | // Figure out our Kind, and check arguments while we're at it. |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 971 | OwnershipAttr::OwnershipKind K; |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 972 | switch (AL.getKind()) { |
| 973 | case AttributeList::AT_ownership_takes: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 974 | K = OwnershipAttr::Takes; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 975 | if (AL.getNumArgs() < 1) { |
| 976 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 977 | return; |
| 978 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 979 | break; |
| 980 | case AttributeList::AT_ownership_holds: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 981 | K = OwnershipAttr::Holds; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 982 | if (AL.getNumArgs() < 1) { |
| 983 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 984 | return; |
| 985 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 986 | break; |
| 987 | case AttributeList::AT_ownership_returns: |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 988 | K = OwnershipAttr::Returns; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 989 | if (AL.getNumArgs() > 1) { |
| 990 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) |
| 991 | << AL.getNumArgs() + 1; |
| 992 | return; |
| 993 | } |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 994 | break; |
| 995 | default: |
| 996 | // This should never happen given how we are called. |
| 997 | llvm_unreachable("Unknown ownership attribute"); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 998 | } |
| 999 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1000 | if (!isFunction(D) || !hasFunctionProto(D)) { |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1001 | S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1002 | << AL.getName() << ExpectedFunction; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1003 | return; |
| 1004 | } |
| 1005 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 1006 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 1007 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1008 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 1009 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1010 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1011 | StringRef Module = AL.getParameterName()->getName(); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1012 | |
| 1013 | // Normalize the argument, __foo__ becomes foo. |
| 1014 | if (Module.startswith("__") && Module.endswith("__")) |
| 1015 | Module = Module.substr(2, Module.size() - 4); |
| 1016 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1017 | SmallVector<unsigned, 10> OwnershipArgs; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1018 | |
Jordy Rose | 2a47992 | 2010-08-12 08:54:03 +0000 | [diff] [blame] | 1019 | for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; |
| 1020 | ++I) { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1021 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1022 | Expr *IdxExpr = *I; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1023 | llvm::APSInt ArgNum(32); |
| 1024 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() |
| 1025 | || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { |
| 1026 | S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) |
| 1027 | << AL.getName()->getName() << IdxExpr->getSourceRange(); |
| 1028 | continue; |
| 1029 | } |
| 1030 | |
| 1031 | unsigned x = (unsigned) ArgNum.getZExtValue(); |
| 1032 | |
| 1033 | if (x > NumArgs || x < 1) { |
| 1034 | S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) |
| 1035 | << AL.getName()->getName() << x << IdxExpr->getSourceRange(); |
| 1036 | continue; |
| 1037 | } |
| 1038 | --x; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 1039 | if (HasImplicitThisParam) { |
| 1040 | if (x == 0) { |
| 1041 | S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) |
| 1042 | << "ownership" << IdxExpr->getSourceRange(); |
| 1043 | return; |
| 1044 | } |
| 1045 | --x; |
| 1046 | } |
| 1047 | |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1048 | switch (K) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1049 | case OwnershipAttr::Takes: |
| 1050 | case OwnershipAttr::Holds: { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1051 | // Is the function argument a pointer type? |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1052 | QualType T = getFunctionOrMethodArgType(D, x); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1053 | if (!T->isAnyPointerType() && !T->isBlockPointerType()) { |
| 1054 | // FIXME: Should also highlight argument in decl. |
| 1055 | S.Diag(AL.getLoc(), diag::err_ownership_type) |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1056 | << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1057 | << "pointer" |
| 1058 | << IdxExpr->getSourceRange(); |
| 1059 | continue; |
| 1060 | } |
| 1061 | break; |
| 1062 | } |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1063 | case OwnershipAttr::Returns: { |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1064 | if (AL.getNumArgs() > 1) { |
| 1065 | // Is the function argument an integer type? |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1066 | Expr *IdxExpr = AL.getArg(0); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1067 | llvm::APSInt ArgNum(32); |
| 1068 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() |
| 1069 | || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { |
| 1070 | S.Diag(AL.getLoc(), diag::err_ownership_type) |
| 1071 | << "ownership_returns" << "integer" |
| 1072 | << IdxExpr->getSourceRange(); |
| 1073 | return; |
| 1074 | } |
| 1075 | } |
| 1076 | break; |
| 1077 | } |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1078 | } // switch |
| 1079 | |
| 1080 | // Check we don't have a conflict with another ownership attribute. |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1081 | for (specific_attr_iterator<OwnershipAttr> |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1082 | i = D->specific_attr_begin<OwnershipAttr>(), |
| 1083 | e = D->specific_attr_end<OwnershipAttr>(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1084 | i != e; ++i) { |
| 1085 | if ((*i)->getOwnKind() != K) { |
| 1086 | for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); |
| 1087 | I!=E; ++I) { |
| 1088 | if (x == *I) { |
| 1089 | S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) |
| 1090 | << AL.getName()->getName() << "ownership_*"; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1091 | } |
| 1092 | } |
| 1093 | } |
| 1094 | } |
| 1095 | OwnershipArgs.push_back(x); |
| 1096 | } |
| 1097 | |
| 1098 | unsigned* start = OwnershipArgs.data(); |
| 1099 | unsigned size = OwnershipArgs.size(); |
| 1100 | llvm::array_pod_sort(start, start + size); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1101 | |
| 1102 | if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { |
| 1103 | S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; |
| 1104 | return; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1105 | } |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1106 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1107 | D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1108 | start, size)); |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 1109 | } |
| 1110 | |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1111 | /// Whether this declaration has internal linkage for the purposes of |
| 1112 | /// things that want to complain about things not have internal linkage. |
| 1113 | static bool hasEffectivelyInternalLinkage(NamedDecl *D) { |
| 1114 | switch (D->getLinkage()) { |
| 1115 | case NoLinkage: |
| 1116 | case InternalLinkage: |
| 1117 | return true; |
| 1118 | |
| 1119 | // Template instantiations that go from external to unique-external |
| 1120 | // shouldn't get diagnosed. |
| 1121 | case UniqueExternalLinkage: |
| 1122 | return true; |
| 1123 | |
| 1124 | case ExternalLinkage: |
| 1125 | return false; |
| 1126 | } |
| 1127 | llvm_unreachable("unknown linkage kind!"); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1128 | } |
| 1129 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1130 | static void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1131 | // Check the attribute arguments. |
| 1132 | if (Attr.getNumArgs() > 1) { |
| 1133 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 1134 | return; |
| 1135 | } |
| 1136 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1137 | if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1138 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1139 | << Attr.getName() << ExpectedVariableOrFunction; |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1140 | return; |
| 1141 | } |
| 1142 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1143 | NamedDecl *nd = cast<NamedDecl>(D); |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1144 | |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1145 | // gcc rejects |
| 1146 | // class c { |
| 1147 | // static int a __attribute__((weakref ("v2"))); |
| 1148 | // static int b() __attribute__((weakref ("f3"))); |
| 1149 | // }; |
| 1150 | // and ignores the attributes of |
| 1151 | // void f(void) { |
| 1152 | // static int a __attribute__((weakref ("v2"))); |
| 1153 | // } |
| 1154 | // we reject them |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1155 | const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1156 | if (!Ctx->isFileContext()) { |
| 1157 | S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1158 | nd->getNameAsString(); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1159 | return; |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1160 | } |
| 1161 | |
| 1162 | // The GCC manual says |
| 1163 | // |
| 1164 | // At present, a declaration to which `weakref' is attached can only |
| 1165 | // be `static'. |
| 1166 | // |
| 1167 | // It also says |
| 1168 | // |
| 1169 | // Without a TARGET, |
| 1170 | // given as an argument to `weakref' or to `alias', `weakref' is |
| 1171 | // equivalent to `weak'. |
| 1172 | // |
| 1173 | // gcc 4.4.1 will accept |
| 1174 | // int a7 __attribute__((weakref)); |
| 1175 | // as |
| 1176 | // int a7 __attribute__((weak)); |
| 1177 | // This looks like a bug in gcc. We reject that for now. We should revisit |
| 1178 | // it if this behaviour is actually used. |
| 1179 | |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1180 | if (!hasEffectivelyInternalLinkage(nd)) { |
| 1181 | S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1182 | return; |
| 1183 | } |
| 1184 | |
| 1185 | // GCC rejects |
| 1186 | // static ((alias ("y"), weakref)). |
| 1187 | // Should we? How to check that weakref is before or after alias? |
| 1188 | |
| 1189 | if (Attr.getNumArgs() == 1) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1190 | Expr *Arg = Attr.getArg(0); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1191 | Arg = Arg->IgnoreParenCasts(); |
| 1192 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
| 1193 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1194 | if (!Str || !Str->isAscii()) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1195 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 1196 | << "weakref" << 1; |
| 1197 | return; |
| 1198 | } |
| 1199 | // GCC will accept anything as the argument of weakref. Should we |
| 1200 | // check for an existing decl? |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1201 | D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1202 | Str->getString())); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1203 | } |
| 1204 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1205 | D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 1206 | } |
| 1207 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1208 | static void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1209 | // check the attribute arguments. |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 1210 | if (Attr.getNumArgs() != 1) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1211 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1212 | return; |
| 1213 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1214 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1215 | Expr *Arg = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1216 | Arg = Arg->IgnoreParenCasts(); |
| 1217 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1218 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1219 | if (!Str || !Str->isAscii()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1220 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1221 | << "alias" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1222 | return; |
| 1223 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1224 | |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 1225 | if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { |
Rafael Espindola | f5fe292 | 2010-12-07 15:23:23 +0000 | [diff] [blame] | 1226 | S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); |
| 1227 | return; |
| 1228 | } |
| 1229 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1230 | // FIXME: check if target symbol exists in current file |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1231 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1232 | D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1233 | Str->getString())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1234 | } |
| 1235 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1236 | static void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1237 | // Check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1238 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Daniel Dunbar | af668b0 | 2008-10-28 00:17:57 +0000 | [diff] [blame] | 1239 | return; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1240 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1241 | if (!isa<FunctionDecl>(D)) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1242 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1243 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1244 | return; |
| 1245 | } |
| 1246 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1247 | D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1248 | } |
| 1249 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1250 | static void handleAlwaysInlineAttr(Sema &S, Decl *D, |
| 1251 | const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1252 | // Check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1253 | if (Attr.hasParameterOrArguments()) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1254 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1255 | return; |
| 1256 | } |
| 1257 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1258 | if (!isa<FunctionDecl>(D)) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1259 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1260 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 1261 | return; |
| 1262 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1263 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1264 | D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | af668b0 | 2008-10-28 00:17:57 +0000 | [diff] [blame] | 1265 | } |
| 1266 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1267 | static void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | dd0cb22 | 2010-09-29 18:20:25 +0000 | [diff] [blame] | 1268 | // Check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1269 | if (Attr.hasParameterOrArguments()) { |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1270 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1271 | return; |
| 1272 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1273 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1274 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1275 | QualType RetTy = FD->getResultType(); |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1276 | if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1277 | D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1278 | return; |
| 1279 | } |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1280 | } |
| 1281 | |
Ted Kremenek | 2cff7d1 | 2009-08-15 00:51:46 +0000 | [diff] [blame] | 1282 | S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); |
Ryan Flynn | 76168e2 | 2009-08-09 20:07:29 +0000 | [diff] [blame] | 1283 | } |
| 1284 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1285 | static void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1286 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1287 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1288 | return; |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1289 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1290 | D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); |
Dan Gohman | 34c2630 | 2010-11-17 00:03:07 +0000 | [diff] [blame] | 1291 | } |
| 1292 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1293 | static void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 1294 | assert(!Attr.isInvalid()); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1295 | if (isa<VarDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1296 | D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); |
Eric Christopher | 722109c | 2010-12-03 06:58:14 +0000 | [diff] [blame] | 1297 | else |
| 1298 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1299 | << Attr.getName() << ExpectedVariable; |
Eric Christopher | a6cf1e7 | 2010-12-02 02:45:55 +0000 | [diff] [blame] | 1300 | } |
| 1301 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1302 | static void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 1303 | assert(!Attr.isInvalid()); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1304 | if (isa<VarDecl>(D)) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1305 | D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); |
Eric Christopher | 722109c | 2010-12-03 06:58:14 +0000 | [diff] [blame] | 1306 | else |
| 1307 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1308 | << Attr.getName() << ExpectedVariable; |
Eric Christopher | a6cf1e7 | 2010-12-02 02:45:55 +0000 | [diff] [blame] | 1309 | } |
| 1310 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1311 | static void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1312 | if (hasDeclarator(D)) return; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1313 | |
| 1314 | if (S.CheckNoReturnAttr(attr)) return; |
| 1315 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1316 | if (!isa<ObjCMethodDecl>(D)) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1317 | S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1318 | << attr.getName() << ExpectedFunctionOrMethod; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1319 | return; |
| 1320 | } |
| 1321 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1322 | D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | bool Sema::CheckNoReturnAttr(const AttributeList &attr) { |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1326 | if (attr.hasParameterOrArguments()) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 1327 | Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1328 | attr.setInvalid(); |
| 1329 | return true; |
| 1330 | } |
| 1331 | |
| 1332 | return false; |
Ted Kremenek | b725232 | 2009-04-10 00:01:14 +0000 | [diff] [blame] | 1333 | } |
| 1334 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1335 | static void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, |
| 1336 | const AttributeList &Attr) { |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1337 | |
| 1338 | // The checking path for 'noreturn' and 'analyzer_noreturn' are different |
| 1339 | // because 'analyzer_noreturn' does not impact the type. |
| 1340 | |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1341 | if(!checkAttributeNumArgs(S, Attr, 0)) |
| 1342 | return; |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1343 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1344 | if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { |
| 1345 | ValueDecl *VD = dyn_cast<ValueDecl>(D); |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1346 | if (VD == 0 || (!VD->getType()->isBlockPointerType() |
| 1347 | && !VD->getType()->isFunctionPointerType())) { |
| 1348 | S.Diag(Attr.getLoc(), |
| 1349 | Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type |
| 1350 | : diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1351 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Ted Kremenek | b56c1cc | 2010-08-19 00:51:58 +0000 | [diff] [blame] | 1352 | return; |
| 1353 | } |
| 1354 | } |
| 1355 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1356 | D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1357 | } |
| 1358 | |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1359 | // PS3 PPU-specific. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1360 | static void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1361 | /* |
| 1362 | Returning a Vector Class in Registers |
| 1363 | |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1364 | According to the PPU ABI specifications, a class with a single member of |
| 1365 | vector type is returned in memory when used as the return value of a function. |
| 1366 | This results in inefficient code when implementing vector classes. To return |
| 1367 | the value in a single vector register, add the vecreturn attribute to the |
| 1368 | class definition. This attribute is also applicable to struct types. |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1369 | |
| 1370 | Example: |
| 1371 | |
| 1372 | struct Vector |
| 1373 | { |
| 1374 | __vector float xyzw; |
| 1375 | } __attribute__((vecreturn)); |
| 1376 | |
| 1377 | Vector Add(Vector lhs, Vector rhs) |
| 1378 | { |
| 1379 | Vector result; |
| 1380 | result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); |
| 1381 | return result; // This will be returned in a register |
| 1382 | } |
| 1383 | */ |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1384 | if (!isa<RecordDecl>(D)) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1385 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1386 | << Attr.getName() << ExpectedClass; |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1387 | return; |
| 1388 | } |
| 1389 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1390 | if (D->getAttr<VecReturnAttr>()) { |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1391 | S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; |
| 1392 | return; |
| 1393 | } |
| 1394 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1395 | RecordDecl *record = cast<RecordDecl>(D); |
John Thompson | 01add59 | 2010-09-18 01:12:07 +0000 | [diff] [blame] | 1396 | int count = 0; |
| 1397 | |
| 1398 | if (!isa<CXXRecordDecl>(record)) { |
| 1399 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); |
| 1400 | return; |
| 1401 | } |
| 1402 | |
| 1403 | if (!cast<CXXRecordDecl>(record)->isPOD()) { |
| 1404 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); |
| 1405 | return; |
| 1406 | } |
| 1407 | |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1408 | for (RecordDecl::field_iterator iter = record->field_begin(); |
| 1409 | iter != record->field_end(); iter++) { |
John Thompson | 01add59 | 2010-09-18 01:12:07 +0000 | [diff] [blame] | 1410 | if ((count == 1) || !iter->getType()->isVectorType()) { |
| 1411 | S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); |
| 1412 | return; |
| 1413 | } |
| 1414 | count++; |
| 1415 | } |
| 1416 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1417 | D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); |
John Thompson | 35cc962 | 2010-08-09 21:53:52 +0000 | [diff] [blame] | 1418 | } |
| 1419 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1420 | static void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1421 | if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1422 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1423 | << Attr.getName() << ExpectedFunctionMethodOrParameter; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1424 | return; |
| 1425 | } |
| 1426 | // FIXME: Actually store the attribute on the declaration |
| 1427 | } |
| 1428 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1429 | static void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1430 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1431 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1432 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1433 | return; |
| 1434 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1435 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1436 | if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && |
| 1437 | !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1438 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1439 | << Attr.getName() << ExpectedVariableFunctionOrLabel; |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1440 | return; |
| 1441 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1442 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1443 | D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); |
Ted Kremenek | 7379889 | 2008-07-25 04:39:19 +0000 | [diff] [blame] | 1444 | } |
| 1445 | |
Rafael Espindola | f87cced | 2011-10-03 14:59:42 +0000 | [diff] [blame] | 1446 | static void handleReturnsTwiceAttr(Sema &S, Decl *D, |
| 1447 | const AttributeList &Attr) { |
| 1448 | // check the attribute arguments. |
| 1449 | if (Attr.hasParameterOrArguments()) { |
| 1450 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1451 | return; |
| 1452 | } |
| 1453 | |
| 1454 | if (!isa<FunctionDecl>(D)) { |
| 1455 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1456 | << Attr.getName() << ExpectedFunction; |
| 1457 | return; |
| 1458 | } |
| 1459 | |
| 1460 | D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); |
| 1461 | } |
| 1462 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1463 | static void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1464 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 1465 | if (Attr.hasParameterOrArguments()) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1466 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 1467 | return; |
| 1468 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1469 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1470 | if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { |
Daniel Dunbar | 186204b | 2009-02-13 22:48:56 +0000 | [diff] [blame] | 1471 | if (VD->hasLocalStorage() || VD->hasExternalStorage()) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1472 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; |
| 1473 | return; |
| 1474 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1475 | } else if (!isFunctionOrMethod(D)) { |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1476 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1477 | << Attr.getName() << ExpectedVariableOrFunction; |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1478 | return; |
| 1479 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1480 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1481 | D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | b805dad | 2009-02-13 19:23:53 +0000 | [diff] [blame] | 1482 | } |
| 1483 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1484 | static void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1485 | // check the attribute arguments. |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1486 | if (Attr.getNumArgs() > 1) { |
| 1487 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1488 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1489 | } |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1490 | |
| 1491 | int priority = 65535; // FIXME: Do not hardcode such constants. |
| 1492 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1493 | Expr *E = Attr.getArg(0); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1494 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1495 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1496 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1497 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1498 | << "constructor" << 1 << E->getSourceRange(); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1499 | return; |
| 1500 | } |
| 1501 | priority = Idx.getZExtValue(); |
| 1502 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1503 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1504 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1505 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1506 | << Attr.getName() << ExpectedFunction; |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1507 | return; |
| 1508 | } |
| 1509 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1510 | D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1511 | priority)); |
Daniel Dunbar | 3068ae0 | 2008-07-31 22:40:48 +0000 | [diff] [blame] | 1512 | } |
| 1513 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1514 | static void handleDestructorAttr(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 | << "destructor" << 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) DestructorAttr(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 handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1545 | unsigned NumArgs = Attr.getNumArgs(); |
| 1546 | if (NumArgs > 1) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1547 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1548 | return; |
| 1549 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1550 | |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1551 | // Handle the case where deprecated attribute has a text message. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1552 | StringRef Str; |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1553 | if (NumArgs == 1) { |
| 1554 | StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1555 | if (!SE) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1556 | S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) |
| 1557 | << "deprecated"; |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1558 | return; |
| 1559 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1560 | Str = SE->getString(); |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 1561 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1562 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1563 | D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1564 | } |
| 1565 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1566 | static void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1567 | unsigned NumArgs = Attr.getNumArgs(); |
| 1568 | if (NumArgs > 1) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1569 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; |
Fariborz Jahanian | bc1c877 | 2008-12-17 01:07:27 +0000 | [diff] [blame] | 1570 | return; |
| 1571 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1572 | |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1573 | // Handle the case where unavailable attribute has a text message. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1574 | StringRef Str; |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1575 | if (NumArgs == 1) { |
| 1576 | StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1577 | if (!SE) { |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1578 | S.Diag(Attr.getArg(0)->getLocStart(), |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1579 | diag::err_attribute_not_string) << "unavailable"; |
| 1580 | return; |
| 1581 | } |
Chris Lattner | 951bbb2 | 2011-02-24 05:42:24 +0000 | [diff] [blame] | 1582 | Str = SE->getString(); |
Fariborz Jahanian | c784dc1 | 2010-10-06 23:12:32 +0000 | [diff] [blame] | 1583 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1584 | D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); |
Fariborz Jahanian | bc1c877 | 2008-12-17 01:07:27 +0000 | [diff] [blame] | 1585 | } |
| 1586 | |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 1587 | static void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, |
| 1588 | const AttributeList &Attr) { |
| 1589 | unsigned NumArgs = Attr.getNumArgs(); |
| 1590 | if (NumArgs > 0) { |
| 1591 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1592 | return; |
| 1593 | } |
| 1594 | |
| 1595 | D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1596 | Attr.getRange(), S.Context)); |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 1597 | } |
| 1598 | |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 1599 | static void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1600 | const AttributeList &Attr) { |
Fariborz Jahanian | 341b8be | 2012-01-03 22:52:32 +0000 | [diff] [blame] | 1601 | if (!isa<ObjCInterfaceDecl>(D)) { |
| 1602 | S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis); |
| 1603 | return; |
| 1604 | } |
| 1605 | |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1606 | unsigned NumArgs = Attr.getNumArgs(); |
| 1607 | if (NumArgs > 0) { |
| 1608 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; |
| 1609 | return; |
| 1610 | } |
| 1611 | |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 1612 | D->addAttr(::new (S.Context) ObjCRequiresPropertyDefsAttr( |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 1613 | Attr.getRange(), S.Context)); |
| 1614 | } |
| 1615 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1616 | static void handleAvailabilityAttr(Sema &S, Decl *D, |
| 1617 | const AttributeList &Attr) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1618 | IdentifierInfo *Platform = Attr.getParameterName(); |
| 1619 | SourceLocation PlatformLoc = Attr.getParameterLoc(); |
| 1620 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1621 | StringRef PlatformName |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1622 | = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); |
| 1623 | if (PlatformName.empty()) { |
| 1624 | S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) |
| 1625 | << Platform; |
| 1626 | |
| 1627 | PlatformName = Platform->getName(); |
| 1628 | } |
| 1629 | |
| 1630 | AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); |
| 1631 | AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); |
| 1632 | AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 1633 | bool IsUnavailable = Attr.getUnavailableLoc().isValid(); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1634 | |
Douglas Gregor | c90df6a | 2011-08-10 16:09:55 +0000 | [diff] [blame] | 1635 | // Ensure that Introduced <= Deprecated <= Obsoleted (although not all |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1636 | // of these steps are needed). |
| 1637 | if (Introduced.isValid() && Deprecated.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1638 | !(Introduced.Version <= Deprecated.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1639 | S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) |
| 1640 | << 1 << PlatformName << Deprecated.Version.getAsString() |
| 1641 | << 0 << Introduced.Version.getAsString(); |
| 1642 | return; |
| 1643 | } |
| 1644 | |
| 1645 | if (Introduced.isValid() && Obsoleted.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1646 | !(Introduced.Version <= Obsoleted.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1647 | S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) |
| 1648 | << 2 << PlatformName << Obsoleted.Version.getAsString() |
| 1649 | << 0 << Introduced.Version.getAsString(); |
| 1650 | return; |
| 1651 | } |
| 1652 | |
| 1653 | if (Deprecated.isValid() && Obsoleted.isValid() && |
Douglas Gregor | 3b6b7ac | 2011-08-10 15:31:35 +0000 | [diff] [blame] | 1654 | !(Deprecated.Version <= Obsoleted.Version)) { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1655 | S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) |
| 1656 | << 2 << PlatformName << Obsoleted.Version.getAsString() |
| 1657 | << 1 << Deprecated.Version.getAsString(); |
| 1658 | return; |
| 1659 | } |
| 1660 | |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 1661 | StringRef Str; |
| 1662 | const StringLiteral *SE = |
| 1663 | dyn_cast_or_null<const StringLiteral>(Attr.getMessageExpr()); |
| 1664 | if (SE) |
| 1665 | Str = SE->getString(); |
| 1666 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1667 | D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1668 | Platform, |
| 1669 | Introduced.Version, |
| 1670 | Deprecated.Version, |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 1671 | Obsoleted.Version, |
Fariborz Jahanian | 006e42f | 2011-12-10 00:28:41 +0000 | [diff] [blame] | 1672 | IsUnavailable, |
| 1673 | Str)); |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 1674 | } |
| 1675 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1676 | static void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1677 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1678 | if(!checkAttributeNumArgs(S, Attr, 1)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1679 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1680 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1681 | Expr *Arg = Attr.getArg(0); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1682 | Arg = Arg->IgnoreParenCasts(); |
| 1683 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1684 | |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 1685 | if (!Str || !Str->isAscii()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1686 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1687 | << "visibility" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1688 | return; |
| 1689 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1690 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1691 | StringRef TypeStr = Str->getString(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1692 | VisibilityAttr::VisibilityType type; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1693 | |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1694 | if (TypeStr == "default") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1695 | type = VisibilityAttr::Default; |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1696 | else if (TypeStr == "hidden") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1697 | type = VisibilityAttr::Hidden; |
Benjamin Kramer | c96f494 | 2010-01-23 18:16:35 +0000 | [diff] [blame] | 1698 | else if (TypeStr == "internal") |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1699 | type = VisibilityAttr::Hidden; // FIXME |
John McCall | 4188760 | 2012-01-29 01:20:30 +0000 | [diff] [blame] | 1700 | else if (TypeStr == "protected") { |
| 1701 | // Complain about attempts to use protected visibility on targets |
| 1702 | // (like Darwin) that don't support it. |
| 1703 | if (!S.Context.getTargetInfo().hasProtectedVisibility()) { |
| 1704 | S.Diag(Attr.getLoc(), diag::warn_attribute_protected_visibility); |
| 1705 | type = VisibilityAttr::Default; |
| 1706 | } else { |
| 1707 | type = VisibilityAttr::Protected; |
| 1708 | } |
| 1709 | } else { |
Chris Lattner | 08631c5 | 2008-11-23 21:45:46 +0000 | [diff] [blame] | 1710 | S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1711 | return; |
| 1712 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1713 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1714 | D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1715 | } |
| 1716 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1717 | static void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, |
| 1718 | const AttributeList &Attr) { |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1719 | ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); |
| 1720 | if (!method) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1721 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1722 | << ExpectedMethod; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1723 | return; |
| 1724 | } |
| 1725 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1726 | if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { |
| 1727 | if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { |
| 1728 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1729 | << "objc_method_family" << 1; |
| 1730 | } else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1731 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1732 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1733 | Attr.setInvalid(); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1734 | return; |
| 1735 | } |
| 1736 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1737 | StringRef param = Attr.getParameterName()->getName(); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1738 | ObjCMethodFamilyAttr::FamilyKind family; |
| 1739 | if (param == "none") |
| 1740 | family = ObjCMethodFamilyAttr::OMF_None; |
| 1741 | else if (param == "alloc") |
| 1742 | family = ObjCMethodFamilyAttr::OMF_alloc; |
| 1743 | else if (param == "copy") |
| 1744 | family = ObjCMethodFamilyAttr::OMF_copy; |
| 1745 | else if (param == "init") |
| 1746 | family = ObjCMethodFamilyAttr::OMF_init; |
| 1747 | else if (param == "mutableCopy") |
| 1748 | family = ObjCMethodFamilyAttr::OMF_mutableCopy; |
| 1749 | else if (param == "new") |
| 1750 | family = ObjCMethodFamilyAttr::OMF_new; |
| 1751 | else { |
| 1752 | // Just warn and ignore it. This is future-proof against new |
| 1753 | // families being used in system headers. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1754 | S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1755 | return; |
| 1756 | } |
| 1757 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 1758 | if (family == ObjCMethodFamilyAttr::OMF_init && |
| 1759 | !method->getResultType()->isObjCObjectPointerType()) { |
| 1760 | S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) |
| 1761 | << method->getResultType(); |
| 1762 | // Ignore the attribute. |
| 1763 | return; |
| 1764 | } |
| 1765 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1766 | method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 1767 | S.Context, family)); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 1768 | } |
| 1769 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1770 | static void handleObjCExceptionAttr(Sema &S, Decl *D, |
| 1771 | const AttributeList &Attr) { |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1772 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1773 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1774 | |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1775 | ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); |
| 1776 | if (OCI == 0) { |
| 1777 | S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); |
| 1778 | return; |
| 1779 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1780 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1781 | D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 1782 | } |
| 1783 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1784 | static void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1785 | if (Attr.getNumArgs() != 0) { |
John McCall | 2b7baf0 | 2010-05-28 18:25:28 +0000 | [diff] [blame] | 1786 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1787 | return; |
| 1788 | } |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 1789 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1790 | QualType T = TD->getUnderlyingType(); |
| 1791 | if (!T->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 1792 | !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1793 | S.Diag(TD->getLocation(), diag::err_nsobject_attribute); |
| 1794 | return; |
| 1795 | } |
| 1796 | } |
Ted Kremenek | f6e88d7 | 2012-03-01 01:40:32 +0000 | [diff] [blame] | 1797 | else if (!isa<ObjCPropertyDecl>(D)) { |
| 1798 | // It is okay to include this attribute on properties, e.g.: |
| 1799 | // |
| 1800 | // @property (retain, nonatomic) struct Bork *Q __attribute__((NSObject)); |
| 1801 | // |
| 1802 | // In this case it follows tradition and suppresses an error in the above |
| 1803 | // case. |
Fariborz Jahanian | 9b2eb7b | 2011-11-29 01:48:40 +0000 | [diff] [blame] | 1804 | S.Diag(D->getLocation(), diag::warn_nsobject_attribute); |
Ted Kremenek | f6e88d7 | 2012-03-01 01:40:32 +0000 | [diff] [blame] | 1805 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1806 | D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); |
Fariborz Jahanian | fa23c1d | 2009-01-13 23:34:40 +0000 | [diff] [blame] | 1807 | } |
| 1808 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1809 | static void |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1810 | handleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1811 | if (Attr.getNumArgs() != 0) { |
John McCall | 2b7baf0 | 2010-05-28 18:25:28 +0000 | [diff] [blame] | 1812 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1813 | return; |
| 1814 | } |
| 1815 | |
| 1816 | if (!isa<FunctionDecl>(D)) { |
| 1817 | S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); |
| 1818 | return; |
| 1819 | } |
| 1820 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1821 | D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | f9201e0 | 2009-02-11 23:02:49 +0000 | [diff] [blame] | 1822 | } |
| 1823 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1824 | static void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1825 | if (!Attr.getParameterName()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1826 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1827 | << "blocks" << 1; |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1828 | return; |
| 1829 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1830 | |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1831 | if (Attr.getNumArgs() != 0) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1832 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1833 | return; |
| 1834 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1835 | |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 1836 | BlocksAttr::BlockType type; |
Chris Lattner | 92e62b0 | 2008-11-20 04:42:34 +0000 | [diff] [blame] | 1837 | if (Attr.getParameterName()->isStr("byref")) |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1838 | type = BlocksAttr::ByRef; |
| 1839 | else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1840 | S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1841 | << "blocks" << Attr.getParameterName(); |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1842 | return; |
| 1843 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1844 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1845 | D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); |
Steve Naroff | 9eae576 | 2008-09-18 16:44:58 +0000 | [diff] [blame] | 1846 | } |
| 1847 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1848 | static void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1849 | // check the attribute arguments. |
| 1850 | if (Attr.getNumArgs() > 2) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 1851 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1852 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1853 | } |
| 1854 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1855 | unsigned sentinel = 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1856 | if (Attr.getNumArgs() > 0) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1857 | Expr *E = Attr.getArg(0); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1858 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1859 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1860 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1861 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1862 | << "sentinel" << 1 << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1863 | return; |
| 1864 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1865 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1866 | if (Idx.isSigned() && Idx.isNegative()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1867 | S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) |
| 1868 | << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1869 | return; |
| 1870 | } |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1871 | |
| 1872 | sentinel = Idx.getZExtValue(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1873 | } |
| 1874 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1875 | unsigned nullPos = 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1876 | if (Attr.getNumArgs() > 1) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 1877 | Expr *E = Attr.getArg(1); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1878 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 1879 | if (E->isTypeDependent() || E->isValueDependent() || |
| 1880 | !E->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1881 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 1882 | << "sentinel" << 2 << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1883 | return; |
| 1884 | } |
| 1885 | nullPos = Idx.getZExtValue(); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1886 | |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1887 | if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1888 | // FIXME: This error message could be improved, it would be nice |
| 1889 | // to say what the bounds actually are. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1890 | S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) |
| 1891 | << E->getSourceRange(); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1892 | return; |
| 1893 | } |
| 1894 | } |
| 1895 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1896 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
John McCall | 3323fad | 2011-09-09 07:56:05 +0000 | [diff] [blame] | 1897 | const FunctionType *FT = FD->getType()->castAs<FunctionType>(); |
Chris Lattner | 897cd90 | 2009-03-17 23:03:47 +0000 | [diff] [blame] | 1898 | if (isa<FunctionNoProtoType>(FT)) { |
| 1899 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); |
| 1900 | return; |
| 1901 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1902 | |
Chris Lattner | 897cd90 | 2009-03-17 23:03:47 +0000 | [diff] [blame] | 1903 | if (!cast<FunctionProtoType>(FT)->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1904 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1905 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1906 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1907 | } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1908 | if (!MD->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1909 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1910 | return; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1911 | } |
Eli Friedman | a0b2ba1 | 2012-01-06 01:23:10 +0000 | [diff] [blame] | 1912 | } else if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) { |
| 1913 | if (!BD->isVariadic()) { |
| 1914 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 1; |
| 1915 | return; |
| 1916 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1917 | } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1918 | QualType Ty = V->getType(); |
Fariborz Jahanian | daf0415 | 2009-05-15 20:33:25 +0000 | [diff] [blame] | 1919 | if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1920 | const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1921 | : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1922 | if (!cast<FunctionProtoType>(FT)->isVariadic()) { |
Fariborz Jahanian | 3bba33d | 2009-05-15 21:18:04 +0000 | [diff] [blame] | 1923 | int m = Ty->isFunctionPointerType() ? 0 : 1; |
| 1924 | S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1925 | return; |
| 1926 | } |
Mike Stump | ac5fc7c | 2009-08-04 21:02:39 +0000 | [diff] [blame] | 1927 | } else { |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1928 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1929 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Fariborz Jahanian | 2f7c392 | 2009-05-14 20:53:39 +0000 | [diff] [blame] | 1930 | return; |
| 1931 | } |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1932 | } else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 1933 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1934 | << Attr.getName() << ExpectedFunctionMethodOrBlock; |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1935 | return; |
| 1936 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1937 | D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 1938 | nullPos)); |
Anders Carlsson | 7709182 | 2008-10-05 18:05:59 +0000 | [diff] [blame] | 1939 | } |
| 1940 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1941 | static void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 1942 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1943 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 1944 | return; |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 1945 | |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 1946 | if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 1947 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 1948 | << Attr.getName() << ExpectedFunctionOrMethod; |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 1949 | return; |
| 1950 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1951 | |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 1952 | if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { |
| 1953 | S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) |
| 1954 | << Attr.getName() << 0; |
Nuno Lopes | f857798 | 2009-12-22 23:59:52 +0000 | [diff] [blame] | 1955 | return; |
| 1956 | } |
Fariborz Jahanian | f031774 | 2010-03-30 18:22:15 +0000 | [diff] [blame] | 1957 | if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
| 1958 | if (MD->getResultType()->isVoidType()) { |
| 1959 | S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) |
| 1960 | << Attr.getName() << 1; |
| 1961 | return; |
| 1962 | } |
| 1963 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1964 | D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 1965 | } |
| 1966 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1967 | static void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1968 | // check the attribute arguments. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1969 | if (Attr.hasParameterOrArguments()) { |
| 1970 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1971 | return; |
| 1972 | } |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 1973 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1974 | if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { |
Fariborz Jahanian | 13c7fcc | 2011-10-21 22:27:12 +0000 | [diff] [blame] | 1975 | if (isa<CXXRecordDecl>(D)) { |
| 1976 | D->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); |
| 1977 | return; |
| 1978 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1979 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 1980 | << Attr.getName() << ExpectedVariableOrFunction; |
Fariborz Jahanian | f23ecd9 | 2009-07-16 01:12:24 +0000 | [diff] [blame] | 1981 | return; |
| 1982 | } |
| 1983 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1984 | NamedDecl *nd = cast<NamedDecl>(D); |
John McCall | 332bb2a | 2011-02-08 22:35:49 +0000 | [diff] [blame] | 1985 | |
| 1986 | // 'weak' only applies to declarations with external linkage. |
| 1987 | if (hasEffectivelyInternalLinkage(nd)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 1988 | S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 1989 | return; |
| 1990 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 1991 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 1992 | nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 1993 | } |
| 1994 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 1995 | static void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 1996 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1997 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 1998 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 1999 | |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2000 | |
| 2001 | // weak_import only applies to variable & function declarations. |
| 2002 | bool isDef = false; |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 2003 | if (!D->canBeWeakImported(isDef)) { |
| 2004 | if (isDef) |
| 2005 | S.Diag(Attr.getLoc(), |
| 2006 | diag::warn_attribute_weak_import_invalid_on_definition) |
| 2007 | << "weak_import" << 2 /*variable and function*/; |
Douglas Gregor | def8631 | 2011-03-23 13:27:51 +0000 | [diff] [blame] | 2008 | else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2009 | (S.Context.getTargetInfo().getTriple().isOSDarwin() && |
Fariborz Jahanian | 90eed21 | 2011-10-26 23:59:12 +0000 | [diff] [blame] | 2010 | (isa<ObjCInterfaceDecl>(D) || isa<EnumDecl>(D)))) { |
Douglas Gregor | def8631 | 2011-03-23 13:27:51 +0000 | [diff] [blame] | 2011 | // Nothing to warn about here. |
| 2012 | } else |
Fariborz Jahanian | c034974 | 2010-04-13 20:22:35 +0000 | [diff] [blame] | 2013 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2014 | << Attr.getName() << ExpectedVariableOrFunction; |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2015 | |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2016 | return; |
| 2017 | } |
| 2018 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2019 | D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); |
Daniel Dunbar | 6e775db | 2009-03-06 06:39:57 +0000 | [diff] [blame] | 2020 | } |
| 2021 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2022 | static void handleReqdWorkGroupSize(Sema &S, Decl *D, |
| 2023 | const AttributeList &Attr) { |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2024 | // Attribute has 3 arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2025 | if (!checkAttributeNumArgs(S, Attr, 3)) |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2026 | return; |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2027 | |
| 2028 | unsigned WGSize[3]; |
| 2029 | for (unsigned i = 0; i < 3; ++i) { |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2030 | Expr *E = Attr.getArg(i); |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2031 | llvm::APSInt ArgNum(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2032 | if (E->isTypeDependent() || E->isValueDependent() || |
| 2033 | !E->isIntegerConstantExpr(ArgNum, S.Context)) { |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2034 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 2035 | << "reqd_work_group_size" << E->getSourceRange(); |
| 2036 | return; |
| 2037 | } |
| 2038 | WGSize[i] = (unsigned) ArgNum.getZExtValue(); |
| 2039 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2040 | D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2041 | WGSize[0], WGSize[1], |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 2042 | WGSize[2])); |
| 2043 | } |
| 2044 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2045 | static void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2046 | // Attribute has no arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2047 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2048 | return; |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2049 | |
| 2050 | // Make sure that there is a string literal as the sections's single |
| 2051 | // argument. |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2052 | Expr *ArgExpr = Attr.getArg(0); |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2053 | StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2054 | if (!SE) { |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2055 | S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2056 | return; |
| 2057 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2058 | |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2059 | // If the target wants to validate the section specifier, make it happen. |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2060 | std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); |
Chris Lattner | a1e1dc7 | 2010-01-12 20:58:53 +0000 | [diff] [blame] | 2061 | if (!Error.empty()) { |
| 2062 | S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) |
| 2063 | << Error; |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2064 | return; |
| 2065 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2066 | |
Chris Lattner | a1e1dc7 | 2010-01-12 20:58:53 +0000 | [diff] [blame] | 2067 | // This attribute cannot be applied to local variables. |
| 2068 | if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { |
| 2069 | S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); |
| 2070 | return; |
| 2071 | } |
| 2072 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2073 | D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2074 | SE->getString())); |
Daniel Dunbar | 17f194f | 2009-02-12 17:28:23 +0000 | [diff] [blame] | 2075 | } |
| 2076 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2077 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2078 | static void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2079 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2080 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2081 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2082 | return; |
| 2083 | } |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2084 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2085 | if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2086 | if (Existing->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2087 | Existing->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2088 | } else { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2089 | D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2090 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2091 | } |
| 2092 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2093 | static void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2094 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2095 | if (Attr.hasParameterOrArguments()) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2096 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2097 | return; |
| 2098 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2099 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2100 | if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2101 | if (Existing->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2102 | Existing->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2103 | } else { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2104 | D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2105 | } |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2106 | } |
| 2107 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2108 | static void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2109 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2110 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2111 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2112 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2113 | D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | 232eb7d | 2008-10-05 23:32:53 +0000 | [diff] [blame] | 2114 | } |
| 2115 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2116 | static void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2117 | if (!Attr.getParameterName()) { |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2118 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2119 | return; |
| 2120 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2121 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2122 | if (Attr.getNumArgs() != 0) { |
| 2123 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2124 | return; |
| 2125 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2126 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2127 | VarDecl *VD = dyn_cast<VarDecl>(D); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2128 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2129 | if (!VD || !VD->hasLocalStorage()) { |
| 2130 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; |
| 2131 | return; |
| 2132 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2133 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2134 | // Look up the function |
Douglas Gregor | c83c687 | 2010-04-15 22:33:43 +0000 | [diff] [blame] | 2135 | // FIXME: Lookup probably isn't looking in the right place |
John McCall | f36e02d | 2009-10-09 21:13:30 +0000 | [diff] [blame] | 2136 | NamedDecl *CleanupDecl |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2137 | = S.LookupSingleName(S.TUScope, Attr.getParameterName(), |
| 2138 | Attr.getParameterLoc(), Sema::LookupOrdinaryName); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2139 | if (!CleanupDecl) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2140 | S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2141 | Attr.getParameterName(); |
| 2142 | return; |
| 2143 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2144 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2145 | FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); |
| 2146 | if (!FD) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2147 | S.Diag(Attr.getParameterLoc(), |
| 2148 | diag::err_attribute_cleanup_arg_not_function) |
| 2149 | << Attr.getParameterName(); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2150 | return; |
| 2151 | } |
| 2152 | |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2153 | if (FD->getNumParams() != 1) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2154 | S.Diag(Attr.getParameterLoc(), |
| 2155 | diag::err_attribute_cleanup_func_must_take_one_arg) |
| 2156 | << Attr.getParameterName(); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2157 | return; |
| 2158 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2159 | |
Anders Carlsson | 89941c1 | 2009-02-07 23:16:50 +0000 | [diff] [blame] | 2160 | // We're currently more strict than GCC about what function types we accept. |
| 2161 | // If this ever proves to be a problem it should be easy to fix. |
| 2162 | QualType Ty = S.Context.getPointerType(VD->getType()); |
| 2163 | QualType ParamTy = FD->getParamDecl(0)->getType(); |
Douglas Gregor | b608b98 | 2011-01-28 02:26:04 +0000 | [diff] [blame] | 2164 | if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), |
| 2165 | ParamTy, Ty) != Sema::Compatible) { |
Argyrios Kyrtzidis | f0b0ccc | 2010-12-06 17:51:50 +0000 | [diff] [blame] | 2166 | S.Diag(Attr.getParameterLoc(), |
Anders Carlsson | 89941c1 | 2009-02-07 23:16:50 +0000 | [diff] [blame] | 2167 | diag::err_attribute_cleanup_func_arg_incompatible_type) << |
| 2168 | Attr.getParameterName() << ParamTy << Ty; |
| 2169 | return; |
| 2170 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2171 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2172 | D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); |
Eli Friedman | 5f2987c | 2012-02-02 03:46:19 +0000 | [diff] [blame] | 2173 | S.MarkFunctionReferenced(Attr.getParameterLoc(), FD); |
Anders Carlsson | f6e35d0 | 2009-01-31 01:16:18 +0000 | [diff] [blame] | 2174 | } |
| 2175 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2176 | /// Handle __attribute__((format_arg((idx)))) attribute based on |
| 2177 | /// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2178 | static void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2179 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2180 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2181 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2182 | if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2183 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2184 | << Attr.getName() << ExpectedFunction; |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2185 | return; |
| 2186 | } |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2187 | |
| 2188 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 2189 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2190 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 2191 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2192 | unsigned FirstIdx = 1; |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2193 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2194 | // checks for the 2nd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2195 | Expr *IdxExpr = Attr.getArg(0); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2196 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2197 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || |
| 2198 | !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2199 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 2200 | << "format" << 2 << IdxExpr->getSourceRange(); |
| 2201 | return; |
| 2202 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2203 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2204 | if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { |
| 2205 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
| 2206 | << "format" << 2 << IdxExpr->getSourceRange(); |
| 2207 | return; |
| 2208 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2209 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2210 | unsigned ArgIdx = Idx.getZExtValue() - 1; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2211 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2212 | if (HasImplicitThisParam) { |
| 2213 | if (ArgIdx == 0) { |
| 2214 | S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) |
| 2215 | << "format_arg" << IdxExpr->getSourceRange(); |
| 2216 | return; |
| 2217 | } |
| 2218 | ArgIdx--; |
| 2219 | } |
| 2220 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2221 | // make sure the format string is really a string |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2222 | QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2223 | |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2224 | bool not_nsstring_type = !isNSStringType(Ty, S.Context); |
| 2225 | if (not_nsstring_type && |
| 2226 | !isCFStringType(Ty, S.Context) && |
| 2227 | (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2228 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2229 | // FIXME: Should highlight the actual expression that has the wrong type. |
| 2230 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2231 | << (not_nsstring_type ? "a string type" : "an NSString") |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2232 | << IdxExpr->getSourceRange(); |
| 2233 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2234 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2235 | Ty = getFunctionOrMethodResultType(D); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2236 | if (!isNSStringType(Ty, S.Context) && |
| 2237 | !isCFStringType(Ty, S.Context) && |
| 2238 | (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2239 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2240 | // FIXME: Should highlight the actual expression that has the wrong type. |
| 2241 | S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2242 | << (not_nsstring_type ? "string type" : "NSString") |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2243 | << IdxExpr->getSourceRange(); |
| 2244 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2245 | } |
| 2246 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2247 | D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2248 | Idx.getZExtValue())); |
Fariborz Jahanian | 5b16092 | 2009-05-20 17:41:43 +0000 | [diff] [blame] | 2249 | } |
| 2250 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2251 | enum FormatAttrKind { |
| 2252 | CFStringFormat, |
| 2253 | NSStringFormat, |
| 2254 | StrftimeFormat, |
| 2255 | SupportedFormat, |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2256 | IgnoredFormat, |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2257 | InvalidFormat |
| 2258 | }; |
| 2259 | |
| 2260 | /// getFormatAttrKind - Map from format attribute names to supported format |
| 2261 | /// types. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2262 | static FormatAttrKind getFormatAttrKind(StringRef Format) { |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2263 | // Check for formats that get handled specially. |
| 2264 | if (Format == "NSString") |
| 2265 | return NSStringFormat; |
| 2266 | if (Format == "CFString") |
| 2267 | return CFStringFormat; |
| 2268 | if (Format == "strftime") |
| 2269 | return StrftimeFormat; |
| 2270 | |
| 2271 | // Otherwise, check for supported formats. |
| 2272 | if (Format == "scanf" || Format == "printf" || Format == "printf0" || |
Jean-Daniel Dupas | 69d5384 | 2012-01-27 09:14:17 +0000 | [diff] [blame] | 2273 | Format == "strfmon" || Format == "cmn_err" || Format == "vcmn_err" || |
Chris Lattner | cd5b306 | 2011-02-18 17:05:55 +0000 | [diff] [blame] | 2274 | Format == "zcmn_err" || |
| 2275 | Format == "kprintf") // OpenBSD. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2276 | return SupportedFormat; |
| 2277 | |
Duncan Sands | bc52595 | 2010-03-23 14:44:19 +0000 | [diff] [blame] | 2278 | if (Format == "gcc_diag" || Format == "gcc_cdiag" || |
| 2279 | Format == "gcc_cxxdiag" || Format == "gcc_tdiag") |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2280 | return IgnoredFormat; |
| 2281 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2282 | return InvalidFormat; |
| 2283 | } |
| 2284 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2285 | /// Handle __attribute__((init_priority(priority))) attributes based on |
| 2286 | /// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2287 | static void handleInitPriorityAttr(Sema &S, Decl *D, |
| 2288 | const AttributeList &Attr) { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame^] | 2289 | if (!S.getLangOpts().CPlusPlus) { |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2290 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); |
| 2291 | return; |
| 2292 | } |
| 2293 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2294 | if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2295 | S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); |
| 2296 | Attr.setInvalid(); |
| 2297 | return; |
| 2298 | } |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2299 | QualType T = dyn_cast<VarDecl>(D)->getType(); |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2300 | if (S.Context.getAsArrayType(T)) |
| 2301 | T = S.Context.getBaseElementType(T); |
| 2302 | if (!T->getAs<RecordType>()) { |
| 2303 | S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); |
| 2304 | Attr.setInvalid(); |
| 2305 | return; |
| 2306 | } |
| 2307 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2308 | if (Attr.getNumArgs() != 1) { |
| 2309 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 2310 | Attr.setInvalid(); |
| 2311 | return; |
| 2312 | } |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2313 | Expr *priorityExpr = Attr.getArg(0); |
Fariborz Jahanian | b9d5c22 | 2010-06-18 23:14:53 +0000 | [diff] [blame] | 2314 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2315 | llvm::APSInt priority(32); |
| 2316 | if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || |
| 2317 | !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { |
| 2318 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
| 2319 | << "init_priority" << priorityExpr->getSourceRange(); |
| 2320 | Attr.setInvalid(); |
| 2321 | return; |
| 2322 | } |
Fariborz Jahanian | 9f967c5 | 2010-06-21 18:45:05 +0000 | [diff] [blame] | 2323 | unsigned prioritynum = priority.getZExtValue(); |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2324 | if (prioritynum < 101 || prioritynum > 65535) { |
| 2325 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) |
| 2326 | << priorityExpr->getSourceRange(); |
| 2327 | Attr.setInvalid(); |
| 2328 | return; |
| 2329 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2330 | D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2331 | prioritynum)); |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 2332 | } |
| 2333 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2334 | /// Handle __attribute__((format(type,idx,firstarg))) attributes based on |
| 2335 | /// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2336 | static void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2337 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2338 | if (!Attr.getParameterName()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2339 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2340 | << "format" << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2341 | return; |
| 2342 | } |
| 2343 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2344 | if (Attr.getNumArgs() != 2) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2345 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2346 | return; |
| 2347 | } |
| 2348 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2349 | if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2350 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2351 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2352 | return; |
| 2353 | } |
| 2354 | |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2355 | // In C++ the implicit 'this' function parameter also counts, and they are |
| 2356 | // counted from one. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2357 | bool HasImplicitThisParam = isInstanceMethod(D); |
| 2358 | unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2359 | unsigned FirstIdx = 1; |
| 2360 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2361 | StringRef Format = Attr.getParameterName()->getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2362 | |
| 2363 | // Normalize the argument, __foo__ becomes foo. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2364 | if (Format.startswith("__") && Format.endswith("__")) |
| 2365 | Format = Format.substr(2, Format.size() - 4); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2366 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2367 | // Check for supported formats. |
| 2368 | FormatAttrKind Kind = getFormatAttrKind(Format); |
Chris Lattner | 3c98902 | 2010-03-22 21:08:50 +0000 | [diff] [blame] | 2369 | |
| 2370 | if (Kind == IgnoredFormat) |
| 2371 | return; |
| 2372 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2373 | if (Kind == InvalidFormat) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2374 | S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 2375 | << "format" << Attr.getParameterName()->getName(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2376 | return; |
| 2377 | } |
| 2378 | |
| 2379 | // checks for the 2nd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2380 | Expr *IdxExpr = Attr.getArg(0); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2381 | llvm::APSInt Idx(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2382 | if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || |
| 2383 | !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2384 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2385 | << "format" << 2 << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2386 | return; |
| 2387 | } |
| 2388 | |
| 2389 | if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2390 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2391 | << "format" << 2 << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2392 | return; |
| 2393 | } |
| 2394 | |
| 2395 | // FIXME: Do we need to bounds check? |
| 2396 | unsigned ArgIdx = Idx.getZExtValue() - 1; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2397 | |
Sebastian Redl | 4a2614e | 2009-11-17 18:02:24 +0000 | [diff] [blame] | 2398 | if (HasImplicitThisParam) { |
| 2399 | if (ArgIdx == 0) { |
Chandler Carruth | 07d7e7a | 2010-11-16 08:35:43 +0000 | [diff] [blame] | 2400 | S.Diag(Attr.getLoc(), |
| 2401 | diag::err_format_attribute_implicit_this_format_string) |
| 2402 | << IdxExpr->getSourceRange(); |
Sebastian Redl | 4a2614e | 2009-11-17 18:02:24 +0000 | [diff] [blame] | 2403 | return; |
| 2404 | } |
| 2405 | ArgIdx--; |
| 2406 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2407 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2408 | // make sure the format string is really a string |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2409 | QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2410 | |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2411 | if (Kind == CFStringFormat) { |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 2412 | if (!isCFStringType(Ty, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2413 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2414 | << "a CFString" << IdxExpr->getSourceRange(); |
Daniel Dunbar | 085e8f7 | 2008-09-26 03:32:58 +0000 | [diff] [blame] | 2415 | return; |
| 2416 | } |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2417 | } else if (Kind == NSStringFormat) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2418 | // FIXME: do we need to check if the type is NSString*? What are the |
| 2419 | // semantics? |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2420 | if (!isNSStringType(Ty, S.Context)) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2421 | // FIXME: Should highlight the actual expression that has the wrong type. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2422 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2423 | << "an NSString" << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2424 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2425 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2426 | } else if (!Ty->isPointerType() || |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 2427 | !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2428 | // FIXME: Should highlight the actual expression that has the wrong type. |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2429 | S.Diag(Attr.getLoc(), diag::err_format_attribute_not) |
| 2430 | << "a string type" << IdxExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2431 | return; |
| 2432 | } |
| 2433 | |
| 2434 | // check the 3rd argument |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2435 | Expr *FirstArgExpr = Attr.getArg(1); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 2436 | llvm::APSInt FirstArg(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 2437 | if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || |
| 2438 | !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2439 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2440 | << "format" << 3 << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2441 | return; |
| 2442 | } |
| 2443 | |
| 2444 | // check if the function is variadic if the 3rd argument non-zero |
| 2445 | if (FirstArg != 0) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2446 | if (isFunctionOrMethodVariadic(D)) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2447 | ++NumArgs; // +1 for ... |
| 2448 | } else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2449 | S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2450 | return; |
| 2451 | } |
| 2452 | } |
| 2453 | |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2454 | // strftime requires FirstArg to be 0 because it doesn't read from any |
| 2455 | // variable the input is just the current time + the format string. |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2456 | if (Kind == StrftimeFormat) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2457 | if (FirstArg != 0) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2458 | S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) |
| 2459 | << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2460 | return; |
| 2461 | } |
| 2462 | // if 0 it disables parameter checking (to use with e.g. va_list) |
| 2463 | } else if (FirstArg != 0 && FirstArg != NumArgs) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2464 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2465 | << "format" << 3 << FirstArgExpr->getSourceRange(); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2466 | return; |
| 2467 | } |
| 2468 | |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2469 | // Check whether we already have an equivalent format attribute. |
| 2470 | for (specific_attr_iterator<FormatAttr> |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2471 | i = D->specific_attr_begin<FormatAttr>(), |
| 2472 | e = D->specific_attr_end<FormatAttr>(); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2473 | i != e ; ++i) { |
| 2474 | FormatAttr *f = *i; |
| 2475 | if (f->getType() == Format && |
| 2476 | f->getFormatIdx() == (int)Idx.getZExtValue() && |
| 2477 | f->getFirstArg() == (int)FirstArg.getZExtValue()) { |
| 2478 | // If we don't have a valid location for this attribute, adopt the |
| 2479 | // location. |
| 2480 | if (f->getLocation().isInvalid()) |
Argyrios Kyrtzidis | ffcc310 | 2011-09-13 16:05:53 +0000 | [diff] [blame] | 2481 | f->setRange(Attr.getRange()); |
Douglas Gregor | b30cd4a | 2011-06-15 05:45:11 +0000 | [diff] [blame] | 2482 | return; |
| 2483 | } |
| 2484 | } |
| 2485 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2486 | D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2487 | Idx.getZExtValue(), |
Daniel Dunbar | 2b0d9a2 | 2009-10-18 02:09:17 +0000 | [diff] [blame] | 2488 | FirstArg.getZExtValue())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2489 | } |
| 2490 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2491 | static void handleTransparentUnionAttr(Sema &S, Decl *D, |
| 2492 | const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2493 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2494 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2495 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2496 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2497 | |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2498 | // Try to find the underlying union declaration. |
| 2499 | RecordDecl *RD = 0; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2500 | TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2501 | if (TD && TD->getUnderlyingType()->isUnionType()) |
| 2502 | RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); |
| 2503 | else |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2504 | RD = dyn_cast<RecordDecl>(D); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2505 | |
| 2506 | if (!RD || !RD->isUnion()) { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2507 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2508 | << Attr.getName() << ExpectedUnion; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2509 | return; |
| 2510 | } |
| 2511 | |
John McCall | 5e1cdac | 2011-10-07 06:10:15 +0000 | [diff] [blame] | 2512 | if (!RD->isCompleteDefinition()) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2513 | S.Diag(Attr.getLoc(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2514 | diag::warn_transparent_union_attribute_not_definition); |
| 2515 | return; |
| 2516 | } |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2517 | |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2518 | RecordDecl::field_iterator Field = RD->field_begin(), |
| 2519 | FieldEnd = RD->field_end(); |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2520 | if (Field == FieldEnd) { |
| 2521 | S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); |
| 2522 | return; |
| 2523 | } |
Eli Friedman | bc88745 | 2008-09-02 05:19:23 +0000 | [diff] [blame] | 2524 | |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2525 | FieldDecl *FirstField = *Field; |
| 2526 | QualType FirstType = FirstField->getType(); |
Douglas Gregor | 90cd672 | 2010-06-30 17:24:13 +0000 | [diff] [blame] | 2527 | if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2528 | S.Diag(FirstField->getLocation(), |
Douglas Gregor | 90cd672 | 2010-06-30 17:24:13 +0000 | [diff] [blame] | 2529 | diag::warn_transparent_union_attribute_floating) |
| 2530 | << FirstType->isVectorType() << FirstType; |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2531 | return; |
| 2532 | } |
| 2533 | |
| 2534 | uint64_t FirstSize = S.Context.getTypeSize(FirstType); |
| 2535 | uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); |
| 2536 | for (; Field != FieldEnd; ++Field) { |
| 2537 | QualType FieldType = Field->getType(); |
| 2538 | if (S.Context.getTypeSize(FieldType) != FirstSize || |
| 2539 | S.Context.getTypeAlign(FieldType) != FirstAlign) { |
| 2540 | // Warn if we drop the attribute. |
| 2541 | bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2542 | unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2543 | : S.Context.getTypeAlign(FieldType); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2544 | S.Diag(Field->getLocation(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2545 | diag::warn_transparent_union_attribute_field_size_align) |
| 2546 | << isSize << Field->getDeclName() << FieldBits; |
| 2547 | unsigned FirstBits = isSize? FirstSize : FirstAlign; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2548 | S.Diag(FirstField->getLocation(), |
Douglas Gregor | 0c74e8a | 2009-04-29 22:16:16 +0000 | [diff] [blame] | 2549 | diag::note_transparent_union_first_field_size_align) |
| 2550 | << isSize << FirstBits; |
Eli Friedman | bc88745 | 2008-09-02 05:19:23 +0000 | [diff] [blame] | 2551 | return; |
| 2552 | } |
| 2553 | } |
| 2554 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2555 | RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2556 | } |
| 2557 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2558 | static void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2559 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2560 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2561 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2562 | |
Peter Collingbourne | 7a73002 | 2010-11-23 20:45:58 +0000 | [diff] [blame] | 2563 | Expr *ArgExpr = Attr.getArg(0); |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2564 | StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2565 | |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2566 | // Make sure that there is a string literal as the annotation's single |
| 2567 | // argument. |
| 2568 | if (!SE) { |
Chris Lattner | 797c3c4 | 2009-08-10 19:03:04 +0000 | [diff] [blame] | 2569 | S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2570 | return; |
| 2571 | } |
Julien Lerouge | 77f68bb | 2011-09-09 22:41:49 +0000 | [diff] [blame] | 2572 | |
| 2573 | // Don't duplicate annotations that are already set. |
| 2574 | for (specific_attr_iterator<AnnotateAttr> |
| 2575 | i = D->specific_attr_begin<AnnotateAttr>(), |
| 2576 | e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { |
| 2577 | if ((*i)->getAnnotation() == SE->getString()) |
| 2578 | return; |
| 2579 | } |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2580 | D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2581 | SE->getString())); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2582 | } |
| 2583 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2584 | static void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2585 | // check the attribute arguments. |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2586 | if (Attr.getNumArgs() > 1) { |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2587 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2588 | return; |
| 2589 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2590 | |
| 2591 | //FIXME: The C++0x version of this attribute has more limited applicabilty |
| 2592 | // than GNU's, and should error out when it is used to specify a |
| 2593 | // weaker alignment, rather than being silently ignored. |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2594 | |
Chris Lattner | 545dd34 | 2008-06-28 23:36:30 +0000 | [diff] [blame] | 2595 | if (Attr.getNumArgs() == 0) { |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2596 | D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2597 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2598 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2599 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2600 | S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2601 | } |
| 2602 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2603 | void Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { |
Peter Collingbourne | 0b64ba9 | 2011-10-23 20:07:52 +0000 | [diff] [blame] | 2604 | // FIXME: Handle pack-expansions here. |
| 2605 | if (DiagnoseUnexpandedParameterPack(E)) |
| 2606 | return; |
| 2607 | |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2608 | if (E->isTypeDependent() || E->isValueDependent()) { |
| 2609 | // Save dependent expressions in the AST to be instantiated. |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2610 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2611 | return; |
| 2612 | } |
| 2613 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2614 | SourceLocation AttrLoc = AttrRange.getBegin(); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2615 | // FIXME: Cache the number on the Attr object? |
Chris Lattner | 49e2d34 | 2008-06-28 23:50:44 +0000 | [diff] [blame] | 2616 | llvm::APSInt Alignment(32); |
Richard Smith | 282e7e6 | 2012-02-04 09:53:13 +0000 | [diff] [blame] | 2617 | ExprResult ICE = |
| 2618 | VerifyIntegerConstantExpression(E, &Alignment, |
| 2619 | PDiag(diag::err_attribute_argument_not_int) << "aligned", |
| 2620 | /*AllowFold*/ false); |
| 2621 | if (ICE.isInvalid()) |
Chris Lattner | 49e2d34 | 2008-06-28 23:50:44 +0000 | [diff] [blame] | 2622 | return; |
Daniel Dunbar | 396b2a2 | 2009-02-16 23:37:57 +0000 | [diff] [blame] | 2623 | if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 2624 | Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) |
| 2625 | << E->getSourceRange(); |
Daniel Dunbar | 396b2a2 | 2009-02-16 23:37:57 +0000 | [diff] [blame] | 2626 | return; |
| 2627 | } |
| 2628 | |
Richard Smith | 282e7e6 | 2012-02-04 09:53:13 +0000 | [diff] [blame] | 2629 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, ICE.take())); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2630 | } |
| 2631 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2632 | void Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2633 | // FIXME: Cache the number on the Attr object if non-dependent? |
| 2634 | // FIXME: Perform checking of type validity |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2635 | D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 2636 | return; |
Chris Lattner | 6b6b537 | 2008-06-26 18:38:35 +0000 | [diff] [blame] | 2637 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2638 | |
Chandler Carruth | d309c81 | 2011-07-01 23:49:16 +0000 | [diff] [blame] | 2639 | /// handleModeAttr - This attribute modifies the width of a decl with primitive |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2640 | /// type. |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2641 | /// |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2642 | /// Despite what would be logical, the mode attribute is a decl attribute, not a |
| 2643 | /// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be |
| 2644 | /// HImode, not an intermediate pointer. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2645 | static void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2646 | // This attribute isn't documented, but glibc uses it. It changes |
| 2647 | // the width of an int or unsigned int to the specified size. |
| 2648 | |
| 2649 | // Check that there aren't any arguments |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2650 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2651 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2652 | |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2653 | |
| 2654 | IdentifierInfo *Name = Attr.getParameterName(); |
| 2655 | if (!Name) { |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2656 | S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2657 | return; |
| 2658 | } |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2659 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2660 | StringRef Str = Attr.getParameterName()->getName(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2661 | |
| 2662 | // Normalize the attribute name, __foo__ becomes foo. |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2663 | if (Str.startswith("__") && Str.endswith("__")) |
| 2664 | Str = Str.substr(2, Str.size() - 4); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2665 | |
| 2666 | unsigned DestWidth = 0; |
| 2667 | bool IntegerMode = true; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2668 | bool ComplexMode = false; |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2669 | switch (Str.size()) { |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2670 | case 2: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2671 | switch (Str[0]) { |
| 2672 | case 'Q': DestWidth = 8; break; |
| 2673 | case 'H': DestWidth = 16; break; |
| 2674 | case 'S': DestWidth = 32; break; |
| 2675 | case 'D': DestWidth = 64; break; |
| 2676 | case 'X': DestWidth = 96; break; |
| 2677 | case 'T': DestWidth = 128; break; |
| 2678 | } |
| 2679 | if (Str[1] == 'F') { |
| 2680 | IntegerMode = false; |
| 2681 | } else if (Str[1] == 'C') { |
| 2682 | IntegerMode = false; |
| 2683 | ComplexMode = true; |
| 2684 | } else if (Str[1] != 'I') { |
| 2685 | DestWidth = 0; |
| 2686 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2687 | break; |
| 2688 | case 4: |
| 2689 | // FIXME: glibc uses 'word' to define register_t; this is narrower than a |
| 2690 | // pointer on PIC16 and other embedded platforms. |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2691 | if (Str == "word") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2692 | DestWidth = S.Context.getTargetInfo().getPointerWidth(0); |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2693 | else if (Str == "byte") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2694 | DestWidth = S.Context.getTargetInfo().getCharWidth(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2695 | break; |
| 2696 | case 7: |
Daniel Dunbar | 210ae98 | 2009-10-18 02:09:24 +0000 | [diff] [blame] | 2697 | if (Str == "pointer") |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2698 | DestWidth = S.Context.getTargetInfo().getPointerWidth(0); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2699 | break; |
| 2700 | } |
| 2701 | |
| 2702 | QualType OldTy; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 2703 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2704 | OldTy = TD->getUnderlyingType(); |
| 2705 | else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) |
| 2706 | OldTy = VD->getType(); |
| 2707 | else { |
Chris Lattner | fa25bbb | 2008-11-19 05:08:23 +0000 | [diff] [blame] | 2708 | S.Diag(D->getLocation(), diag::err_attr_wrong_decl) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2709 | << "mode" << Attr.getRange(); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2710 | return; |
| 2711 | } |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2712 | |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 2713 | if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2714 | S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); |
| 2715 | else if (IntegerMode) { |
Douglas Gregor | 2ade35e | 2010-06-16 00:17:44 +0000 | [diff] [blame] | 2716 | if (!OldTy->isIntegralOrEnumerationType()) |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2717 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2718 | } else if (ComplexMode) { |
| 2719 | if (!OldTy->isComplexType()) |
| 2720 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2721 | } else { |
| 2722 | if (!OldTy->isFloatingType()) |
| 2723 | S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); |
| 2724 | } |
| 2725 | |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 2726 | // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t |
| 2727 | // and friends, at least with glibc. |
| 2728 | // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong |
| 2729 | // width on unusual platforms. |
Eli Friedman | f98aba3 | 2009-02-13 02:31:07 +0000 | [diff] [blame] | 2730 | // FIXME: Make sure floating-point mappings are accurate |
| 2731 | // FIXME: Support XF and TF types |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2732 | QualType NewTy; |
| 2733 | switch (DestWidth) { |
| 2734 | case 0: |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2735 | S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2736 | return; |
| 2737 | default: |
Chris Lattner | 3c73c41 | 2008-11-19 08:23:25 +0000 | [diff] [blame] | 2738 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2739 | return; |
| 2740 | case 8: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2741 | if (!IntegerMode) { |
| 2742 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2743 | return; |
| 2744 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2745 | if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2746 | NewTy = S.Context.SignedCharTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2747 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2748 | NewTy = S.Context.UnsignedCharTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2749 | break; |
| 2750 | case 16: |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2751 | if (!IntegerMode) { |
| 2752 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2753 | return; |
| 2754 | } |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2755 | if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2756 | NewTy = S.Context.ShortTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2757 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2758 | NewTy = S.Context.UnsignedShortTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2759 | break; |
| 2760 | case 32: |
| 2761 | if (!IntegerMode) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2762 | NewTy = S.Context.FloatTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2763 | else if (OldTy->isSignedIntegerType()) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2764 | NewTy = S.Context.IntTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2765 | else |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2766 | NewTy = S.Context.UnsignedIntTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2767 | break; |
| 2768 | case 64: |
| 2769 | if (!IntegerMode) |
Chris Lattner | 0b2f4da | 2008-06-29 00:28:59 +0000 | [diff] [blame] | 2770 | NewTy = S.Context.DoubleTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2771 | else if (OldTy->isSignedIntegerType()) |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2772 | if (S.Context.getTargetInfo().getLongWidth() == 64) |
Chandler Carruth | aec7caa | 2010-01-26 06:39:24 +0000 | [diff] [blame] | 2773 | NewTy = S.Context.LongTy; |
| 2774 | else |
| 2775 | NewTy = S.Context.LongLongTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2776 | else |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 2777 | if (S.Context.getTargetInfo().getLongWidth() == 64) |
Chandler Carruth | aec7caa | 2010-01-26 06:39:24 +0000 | [diff] [blame] | 2778 | NewTy = S.Context.UnsignedLongTy; |
| 2779 | else |
| 2780 | NewTy = S.Context.UnsignedLongLongTy; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2781 | break; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2782 | case 96: |
| 2783 | NewTy = S.Context.LongDoubleTy; |
| 2784 | break; |
Eli Friedman | f98aba3 | 2009-02-13 02:31:07 +0000 | [diff] [blame] | 2785 | case 128: |
| 2786 | if (!IntegerMode) { |
| 2787 | S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; |
| 2788 | return; |
| 2789 | } |
Anders Carlsson | f5f7d86 | 2009-12-29 07:07:36 +0000 | [diff] [blame] | 2790 | if (OldTy->isSignedIntegerType()) |
| 2791 | NewTy = S.Context.Int128Ty; |
| 2792 | else |
| 2793 | NewTy = S.Context.UnsignedInt128Ty; |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2794 | break; |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2795 | } |
| 2796 | |
Eli Friedman | 7339749 | 2009-03-03 06:41:03 +0000 | [diff] [blame] | 2797 | if (ComplexMode) { |
| 2798 | NewTy = S.Context.getComplexType(NewTy); |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2799 | } |
| 2800 | |
| 2801 | // Install the new type. |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 2802 | if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 2803 | // FIXME: preserve existing source info. |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 2804 | TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 2805 | } else |
Chris Lattner | fbf1347 | 2008-06-27 22:18:37 +0000 | [diff] [blame] | 2806 | cast<ValueDecl>(D)->setType(NewTy); |
| 2807 | } |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 2808 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2809 | static void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2810 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2811 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2812 | return; |
Anders Carlsson | e896d98 | 2009-02-13 08:11:52 +0000 | [diff] [blame] | 2813 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2814 | if (!isFunctionOrMethod(D)) { |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2815 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2816 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2817 | return; |
| 2818 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2819 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2820 | D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | d87df37 | 2009-02-13 06:46:13 +0000 | [diff] [blame] | 2821 | } |
| 2822 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2823 | static void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2824 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2825 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2826 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2827 | |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2828 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2829 | if (!isa<FunctionDecl>(D)) { |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2830 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2831 | << Attr.getName() << ExpectedFunction; |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2832 | return; |
| 2833 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2834 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2835 | D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); |
Anders Carlsson | 5bab788 | 2009-02-19 19:16:48 +0000 | [diff] [blame] | 2836 | } |
| 2837 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2838 | static void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, |
| 2839 | const AttributeList &Attr) { |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2840 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2841 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2842 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2843 | |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2844 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2845 | if (!isa<FunctionDecl>(D)) { |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2846 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2847 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2848 | return; |
| 2849 | } |
| 2850 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2851 | D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 2852 | S.Context)); |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 2853 | } |
| 2854 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2855 | static void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2856 | if (S.LangOpts.CUDA) { |
| 2857 | // check the attribute arguments. |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 2858 | if (Attr.hasParameterOrArguments()) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2859 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 2860 | return; |
| 2861 | } |
| 2862 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2863 | if (!isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2864 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2865 | << Attr.getName() << ExpectedVariable; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2866 | return; |
| 2867 | } |
| 2868 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2869 | D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2870 | } else { |
| 2871 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; |
| 2872 | } |
| 2873 | } |
| 2874 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2875 | static void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2876 | if (S.LangOpts.CUDA) { |
| 2877 | // check the attribute arguments. |
| 2878 | if (Attr.getNumArgs() != 0) { |
| 2879 | S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 2880 | return; |
| 2881 | } |
| 2882 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2883 | if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2884 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2885 | << Attr.getName() << ExpectedVariableOrFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2886 | return; |
| 2887 | } |
| 2888 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2889 | D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2890 | } else { |
| 2891 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; |
| 2892 | } |
| 2893 | } |
| 2894 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2895 | static void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2896 | if (S.LangOpts.CUDA) { |
| 2897 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2898 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2899 | return; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2900 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2901 | if (!isa<FunctionDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2902 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2903 | << Attr.getName() << ExpectedFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2904 | return; |
| 2905 | } |
| 2906 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2907 | FunctionDecl *FD = cast<FunctionDecl>(D); |
Peter Collingbourne | 2c2c8dd | 2010-12-12 23:02:57 +0000 | [diff] [blame] | 2908 | if (!FD->getResultType()->isVoidType()) { |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 2909 | TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); |
Peter Collingbourne | 2c2c8dd | 2010-12-12 23:02:57 +0000 | [diff] [blame] | 2910 | if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { |
| 2911 | S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) |
| 2912 | << FD->getType() |
| 2913 | << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), |
| 2914 | "void"); |
| 2915 | } else { |
| 2916 | S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) |
| 2917 | << FD->getType(); |
| 2918 | } |
| 2919 | return; |
| 2920 | } |
| 2921 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2922 | D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2923 | } else { |
| 2924 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; |
| 2925 | } |
| 2926 | } |
| 2927 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2928 | static void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2929 | if (S.LangOpts.CUDA) { |
| 2930 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2931 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2932 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2933 | |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2934 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2935 | if (!isa<FunctionDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2936 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2937 | << Attr.getName() << ExpectedFunction; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2938 | return; |
| 2939 | } |
| 2940 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2941 | D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2942 | } else { |
| 2943 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; |
| 2944 | } |
| 2945 | } |
| 2946 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2947 | static void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2948 | if (S.LangOpts.CUDA) { |
| 2949 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2950 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2951 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2952 | |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2953 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2954 | if (!isa<VarDecl>(D)) { |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2955 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2956 | << Attr.getName() << ExpectedVariable; |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2957 | return; |
| 2958 | } |
| 2959 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2960 | D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | ced7671 | 2010-12-01 03:15:31 +0000 | [diff] [blame] | 2961 | } else { |
| 2962 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; |
| 2963 | } |
| 2964 | } |
| 2965 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2966 | static void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 2967 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 2968 | if (!checkAttributeNumArgs(S, Attr, 0)) |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 2969 | return; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2970 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2971 | FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); |
Chris Lattner | c519743 | 2009-04-14 17:02:11 +0000 | [diff] [blame] | 2972 | if (Fn == 0) { |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 2973 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 2974 | << Attr.getName() << ExpectedFunction; |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 2975 | return; |
| 2976 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2977 | |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 2978 | if (!Fn->isInlineSpecified()) { |
Chris Lattner | cf2a721 | 2009-04-20 19:12:28 +0000 | [diff] [blame] | 2979 | S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); |
Chris Lattner | c519743 | 2009-04-14 17:02:11 +0000 | [diff] [blame] | 2980 | return; |
| 2981 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 2982 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 2983 | D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); |
Chris Lattner | 26e2554 | 2009-04-14 16:30:50 +0000 | [diff] [blame] | 2984 | } |
| 2985 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 2986 | static void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2987 | if (hasDeclarator(D)) return; |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 2988 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2989 | // Diagnostic is emitted elsewhere: here we store the (valid) Attr |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 2990 | // in the Decl node for syntactic reasoning, e.g., pretty-printing. |
| 2991 | CallingConv CC; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2992 | if (S.CheckCallingConvAttr(Attr, CC)) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 2993 | return; |
| 2994 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 2995 | if (!isa<ObjCMethodDecl>(D)) { |
| 2996 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 2997 | << Attr.getName() << ExpectedFunctionOrMethod; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 2998 | return; |
| 2999 | } |
| 3000 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3001 | switch (Attr.getKind()) { |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3002 | case AttributeList::AT_fastcall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3003 | D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3004 | return; |
| 3005 | case AttributeList::AT_stdcall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3006 | D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3007 | return; |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 3008 | case AttributeList::AT_thiscall: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3009 | D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); |
Douglas Gregor | 04633eb | 2010-08-30 23:30:49 +0000 | [diff] [blame] | 3010 | return; |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3011 | case AttributeList::AT_cdecl: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3012 | D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3013 | return; |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3014 | case AttributeList::AT_pascal: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3015 | D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3016 | return; |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3017 | case AttributeList::AT_pcs: { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3018 | Expr *Arg = Attr.getArg(0); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3019 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3020 | if (!Str || !Str->isAscii()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3021 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3022 | << "pcs" << 1; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3023 | Attr.setInvalid(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3024 | return; |
| 3025 | } |
| 3026 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3027 | StringRef StrRef = Str->getString(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3028 | PcsAttr::PCSType PCS; |
| 3029 | if (StrRef == "aapcs") |
| 3030 | PCS = PcsAttr::AAPCS; |
| 3031 | else if (StrRef == "aapcs-vfp") |
| 3032 | PCS = PcsAttr::AAPCS_VFP; |
| 3033 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3034 | S.Diag(Attr.getLoc(), diag::err_invalid_pcs); |
| 3035 | Attr.setInvalid(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3036 | return; |
| 3037 | } |
| 3038 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3039 | D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3040 | } |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3041 | default: |
| 3042 | llvm_unreachable("unexpected attribute kind"); |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3043 | } |
| 3044 | } |
| 3045 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3046 | static void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ |
Chandler Carruth | 56aeb40 | 2011-07-11 23:33:05 +0000 | [diff] [blame] | 3047 | assert(!Attr.isInvalid()); |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3048 | D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3049 | } |
| 3050 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3051 | bool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { |
| 3052 | if (attr.isInvalid()) |
| 3053 | return true; |
| 3054 | |
Ted Kremenek | 831efae | 2011-04-15 05:49:29 +0000 | [diff] [blame] | 3055 | if ((attr.getNumArgs() != 0 && |
| 3056 | !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || |
| 3057 | attr.getParameterName()) { |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3058 | Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; |
| 3059 | attr.setInvalid(); |
| 3060 | return true; |
| 3061 | } |
| 3062 | |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3063 | // TODO: diagnose uses of these conventions on the wrong target. Or, better |
| 3064 | // move to TargetAttributesSema one day. |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3065 | switch (attr.getKind()) { |
| 3066 | case AttributeList::AT_cdecl: CC = CC_C; break; |
| 3067 | case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; |
| 3068 | case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; |
| 3069 | case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; |
| 3070 | case AttributeList::AT_pascal: CC = CC_X86Pascal; break; |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3071 | case AttributeList::AT_pcs: { |
| 3072 | Expr *Arg = attr.getArg(0); |
| 3073 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3074 | if (!Str || !Str->isAscii()) { |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3075 | Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 3076 | << "pcs" << 1; |
| 3077 | attr.setInvalid(); |
| 3078 | return true; |
| 3079 | } |
| 3080 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3081 | StringRef StrRef = Str->getString(); |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3082 | if (StrRef == "aapcs") { |
| 3083 | CC = CC_AAPCS; |
| 3084 | break; |
| 3085 | } else if (StrRef == "aapcs-vfp") { |
| 3086 | CC = CC_AAPCS_VFP; |
| 3087 | break; |
| 3088 | } |
| 3089 | // FALLS THROUGH |
| 3090 | } |
David Blaikie | 7530c03 | 2012-01-17 06:56:22 +0000 | [diff] [blame] | 3091 | default: llvm_unreachable("unexpected attribute kind"); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3092 | } |
| 3093 | |
| 3094 | return false; |
| 3095 | } |
| 3096 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3097 | static void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3098 | if (hasDeclarator(D)) return; |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3099 | |
| 3100 | unsigned numParams; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3101 | if (S.CheckRegparmAttr(Attr, numParams)) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3102 | return; |
| 3103 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3104 | if (!isa<ObjCMethodDecl>(D)) { |
| 3105 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
| 3106 | << Attr.getName() << ExpectedFunctionOrMethod; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3107 | return; |
| 3108 | } |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3109 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3110 | D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3111 | } |
| 3112 | |
| 3113 | /// Checks a regparm attribute, returning true if it is ill-formed and |
| 3114 | /// otherwise setting numParams to the appropriate value. |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3115 | bool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { |
| 3116 | if (Attr.isInvalid()) |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3117 | return true; |
| 3118 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3119 | if (Attr.getNumArgs() != 1) { |
| 3120 | Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; |
| 3121 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3122 | return true; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3123 | } |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3124 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3125 | Expr *NumParamsExpr = Attr.getArg(0); |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3126 | llvm::APSInt NumParams(32); |
Douglas Gregor | ac06a0e | 2010-05-18 23:01:22 +0000 | [diff] [blame] | 3127 | if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3128 | !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3129 | Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3130 | << "regparm" << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3131 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3132 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3133 | } |
| 3134 | |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3135 | if (Context.getTargetInfo().getRegParmMax() == 0) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3136 | Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3137 | << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3138 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3139 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3140 | } |
| 3141 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3142 | numParams = NumParams.getZExtValue(); |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3143 | if (numParams > Context.getTargetInfo().getRegParmMax()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3144 | Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 3145 | << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3146 | Attr.setInvalid(); |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3147 | return true; |
Eli Friedman | 55d3aaf | 2009-03-27 21:06:47 +0000 | [diff] [blame] | 3148 | } |
| 3149 | |
John McCall | 711c52b | 2011-01-05 12:14:39 +0000 | [diff] [blame] | 3150 | return false; |
Fariborz Jahanian | ee76033 | 2009-03-27 18:38:55 +0000 | [diff] [blame] | 3151 | } |
| 3152 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3153 | static void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3154 | if (S.LangOpts.CUDA) { |
| 3155 | // check the attribute arguments. |
| 3156 | if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { |
John McCall | bdc49d3 | 2011-03-02 12:15:05 +0000 | [diff] [blame] | 3157 | // FIXME: 0 is not okay. |
| 3158 | S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3159 | return; |
| 3160 | } |
| 3161 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3162 | if (!isFunctionOrMethod(D)) { |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3163 | S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3164 | << Attr.getName() << ExpectedFunctionOrMethod; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3165 | return; |
| 3166 | } |
| 3167 | |
| 3168 | Expr *MaxThreadsExpr = Attr.getArg(0); |
| 3169 | llvm::APSInt MaxThreads(32); |
| 3170 | if (MaxThreadsExpr->isTypeDependent() || |
| 3171 | MaxThreadsExpr->isValueDependent() || |
| 3172 | !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { |
| 3173 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 3174 | << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); |
| 3175 | return; |
| 3176 | } |
| 3177 | |
| 3178 | llvm::APSInt MinBlocks(32); |
| 3179 | if (Attr.getNumArgs() > 1) { |
| 3180 | Expr *MinBlocksExpr = Attr.getArg(1); |
| 3181 | if (MinBlocksExpr->isTypeDependent() || |
| 3182 | MinBlocksExpr->isValueDependent() || |
| 3183 | !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { |
| 3184 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) |
| 3185 | << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); |
| 3186 | return; |
| 3187 | } |
| 3188 | } |
| 3189 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3190 | D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3191 | MaxThreads.getZExtValue(), |
| 3192 | MinBlocks.getZExtValue())); |
| 3193 | } else { |
| 3194 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; |
| 3195 | } |
| 3196 | } |
| 3197 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3198 | //===----------------------------------------------------------------------===// |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3199 | // Checker-specific attribute handlers. |
| 3200 | //===----------------------------------------------------------------------===// |
| 3201 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3202 | static bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { |
Douglas Gregor | 6c73a29 | 2011-10-09 22:26:49 +0000 | [diff] [blame] | 3203 | return type->isDependentType() || |
| 3204 | type->isObjCObjectPointerType() || |
| 3205 | S.Context.isObjCNSObjectType(type); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3206 | } |
| 3207 | static bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { |
Douglas Gregor | 6c73a29 | 2011-10-09 22:26:49 +0000 | [diff] [blame] | 3208 | return type->isDependentType() || |
| 3209 | type->isPointerType() || |
| 3210 | isValidSubjectOfNSAttribute(S, type); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3211 | } |
| 3212 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3213 | static void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3214 | ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3215 | if (!param) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3216 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3217 | << Attr.getRange() << Attr.getName() << ExpectedParameter; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3218 | return; |
| 3219 | } |
| 3220 | |
| 3221 | bool typeOK, cf; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3222 | if (Attr.getKind() == AttributeList::AT_ns_consumed) { |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3223 | typeOK = isValidSubjectOfNSAttribute(S, param->getType()); |
| 3224 | cf = false; |
| 3225 | } else { |
| 3226 | typeOK = isValidSubjectOfCFAttribute(S, param->getType()); |
| 3227 | cf = true; |
| 3228 | } |
| 3229 | |
| 3230 | if (!typeOK) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3231 | S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3232 | << Attr.getRange() << Attr.getName() << cf; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3233 | return; |
| 3234 | } |
| 3235 | |
| 3236 | if (cf) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3237 | param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3238 | else |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3239 | param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3240 | } |
| 3241 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3242 | static void handleNSConsumesSelfAttr(Sema &S, Decl *D, |
| 3243 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3244 | if (!isa<ObjCMethodDecl>(D)) { |
| 3245 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3246 | << Attr.getRange() << Attr.getName() << ExpectedMethod; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3247 | return; |
| 3248 | } |
| 3249 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3250 | D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3251 | } |
| 3252 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3253 | static void handleNSReturnsRetainedAttr(Sema &S, Decl *D, |
| 3254 | const AttributeList &Attr) { |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3255 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3256 | QualType returnType; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3257 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3258 | if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3259 | returnType = MD->getResultType(); |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3260 | else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) |
Fariborz Jahanian | 831fb96 | 2011-06-25 00:17:46 +0000 | [diff] [blame] | 3261 | returnType = PD->getType(); |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame^] | 3262 | else if (S.getLangOpts().ObjCAutoRefCount && hasDeclarator(D) && |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3263 | (Attr.getKind() == AttributeList::AT_ns_returns_retained)) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3264 | return; // ignore: was handled as a type attribute |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3265 | else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3266 | returnType = FD->getResultType(); |
Ted Kremenek | 5dc53c9 | 2009-05-13 21:07:32 +0000 | [diff] [blame] | 3267 | else { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3268 | S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3269 | << Attr.getRange() << Attr.getName() |
John McCall | 883cc2c | 2011-03-02 12:29:23 +0000 | [diff] [blame] | 3270 | << ExpectedFunctionOrMethod; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3271 | return; |
| 3272 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3273 | |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3274 | bool typeOK; |
| 3275 | bool cf; |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3276 | switch (Attr.getKind()) { |
David Blaikie | 7530c03 | 2012-01-17 06:56:22 +0000 | [diff] [blame] | 3277 | default: llvm_unreachable("invalid ownership attribute"); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3278 | case AttributeList::AT_ns_returns_autoreleased: |
| 3279 | case AttributeList::AT_ns_returns_retained: |
| 3280 | case AttributeList::AT_ns_returns_not_retained: |
| 3281 | typeOK = isValidSubjectOfNSAttribute(S, returnType); |
| 3282 | cf = false; |
| 3283 | break; |
| 3284 | |
| 3285 | case AttributeList::AT_cf_returns_retained: |
| 3286 | case AttributeList::AT_cf_returns_not_retained: |
| 3287 | typeOK = isValidSubjectOfCFAttribute(S, returnType); |
| 3288 | cf = true; |
| 3289 | break; |
| 3290 | } |
| 3291 | |
| 3292 | if (!typeOK) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3293 | S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3294 | << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3295 | return; |
Ted Kremenek | 5dc53c9 | 2009-05-13 21:07:32 +0000 | [diff] [blame] | 3296 | } |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3297 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3298 | switch (Attr.getKind()) { |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3299 | default: |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 3300 | llvm_unreachable("invalid ownership attribute"); |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3301 | case AttributeList::AT_ns_returns_autoreleased: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3302 | D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3303 | S.Context)); |
| 3304 | return; |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3305 | case AttributeList::AT_cf_returns_not_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3306 | D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3307 | S.Context)); |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3308 | return; |
| 3309 | case AttributeList::AT_ns_returns_not_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3310 | D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3311 | S.Context)); |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3312 | return; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3313 | case AttributeList::AT_cf_returns_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3314 | D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3315 | S.Context)); |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3316 | return; |
| 3317 | case AttributeList::AT_ns_returns_retained: |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3318 | D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3319 | S.Context)); |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3320 | return; |
| 3321 | }; |
| 3322 | } |
| 3323 | |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3324 | static void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, |
| 3325 | const AttributeList &attr) { |
| 3326 | SourceLocation loc = attr.getLoc(); |
| 3327 | |
| 3328 | ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); |
| 3329 | |
| 3330 | if (!isa<ObjCMethodDecl>(method)) { |
| 3331 | S.Diag(method->getLocStart(), diag::err_attribute_wrong_decl_type) |
| 3332 | << SourceRange(loc, loc) << attr.getName() << 13 /* methods */; |
| 3333 | return; |
| 3334 | } |
| 3335 | |
| 3336 | // Check that the method returns a normal pointer. |
| 3337 | QualType resultType = method->getResultType(); |
Fariborz Jahanian | f2e5945 | 2011-09-30 20:50:23 +0000 | [diff] [blame] | 3338 | |
| 3339 | if (!resultType->isReferenceType() && |
| 3340 | (!resultType->isPointerType() || resultType->isObjCRetainableType())) { |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3341 | S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) |
| 3342 | << SourceRange(loc) |
| 3343 | << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; |
| 3344 | |
| 3345 | // Drop the attribute. |
| 3346 | return; |
| 3347 | } |
| 3348 | |
| 3349 | method->addAttr( |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3350 | ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3351 | } |
| 3352 | |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3353 | /// Handle cf_audited_transfer and cf_unknown_transfer. |
| 3354 | static void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { |
| 3355 | if (!isa<FunctionDecl>(D)) { |
| 3356 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
| 3357 | << A.getRange() << A.getName() << 0 /*function*/; |
| 3358 | return; |
| 3359 | } |
| 3360 | |
| 3361 | bool IsAudited = (A.getKind() == AttributeList::AT_cf_audited_transfer); |
| 3362 | |
| 3363 | // Check whether there's a conflicting attribute already present. |
| 3364 | Attr *Existing; |
| 3365 | if (IsAudited) { |
| 3366 | Existing = D->getAttr<CFUnknownTransferAttr>(); |
| 3367 | } else { |
| 3368 | Existing = D->getAttr<CFAuditedTransferAttr>(); |
| 3369 | } |
| 3370 | if (Existing) { |
| 3371 | S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) |
| 3372 | << A.getName() |
| 3373 | << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") |
| 3374 | << A.getRange() << Existing->getRange(); |
| 3375 | return; |
| 3376 | } |
| 3377 | |
| 3378 | // All clear; add the attribute. |
| 3379 | if (IsAudited) { |
| 3380 | D->addAttr( |
| 3381 | ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); |
| 3382 | } else { |
| 3383 | D->addAttr( |
| 3384 | ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); |
| 3385 | } |
| 3386 | } |
| 3387 | |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3388 | static void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, |
| 3389 | const AttributeList &Attr) { |
| 3390 | RecordDecl *RD = dyn_cast<RecordDecl>(D); |
| 3391 | if (!RD || RD->isUnion()) { |
| 3392 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
| 3393 | << Attr.getRange() << Attr.getName() << 14 /*struct */; |
| 3394 | } |
| 3395 | |
| 3396 | IdentifierInfo *ParmName = Attr.getParameterName(); |
| 3397 | |
| 3398 | // In Objective-C, verify that the type names an Objective-C type. |
| 3399 | // We don't want to check this outside of ObjC because people sometimes |
| 3400 | // do crazy C declarations of Objective-C types. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame^] | 3401 | if (ParmName && S.getLangOpts().ObjC1) { |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3402 | // Check for an existing type with this name. |
| 3403 | LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), |
| 3404 | Sema::LookupOrdinaryName); |
| 3405 | if (S.LookupName(R, Sc)) { |
| 3406 | NamedDecl *Target = R.getFoundDecl(); |
| 3407 | if (Target && !isa<ObjCInterfaceDecl>(Target)) { |
| 3408 | S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); |
| 3409 | S.Diag(Target->getLocStart(), diag::note_declared_at); |
| 3410 | } |
| 3411 | } |
| 3412 | } |
| 3413 | |
| 3414 | D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, |
| 3415 | ParmName)); |
| 3416 | } |
| 3417 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3418 | static void handleObjCOwnershipAttr(Sema &S, Decl *D, |
| 3419 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3420 | if (hasDeclarator(D)) return; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3421 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3422 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3423 | << Attr.getRange() << Attr.getName() << 12 /* variable */; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3424 | } |
| 3425 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3426 | static void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, |
| 3427 | const AttributeList &Attr) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3428 | if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3429 | S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3430 | << Attr.getRange() << Attr.getName() << 12 /* variable */; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3431 | return; |
| 3432 | } |
| 3433 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3434 | ValueDecl *vd = cast<ValueDecl>(D); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3435 | QualType type = vd->getType(); |
| 3436 | |
| 3437 | if (!type->isDependentType() && |
| 3438 | !type->isObjCLifetimeType()) { |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3439 | S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3440 | << type; |
| 3441 | return; |
| 3442 | } |
| 3443 | |
| 3444 | Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); |
| 3445 | |
| 3446 | // If we have no lifetime yet, check the lifetime we're presumably |
| 3447 | // going to infer. |
| 3448 | if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) |
| 3449 | lifetime = type->getObjCARCImplicitLifetime(); |
| 3450 | |
| 3451 | switch (lifetime) { |
| 3452 | case Qualifiers::OCL_None: |
| 3453 | assert(type->isDependentType() && |
| 3454 | "didn't infer lifetime for non-dependent type?"); |
| 3455 | break; |
| 3456 | |
| 3457 | case Qualifiers::OCL_Weak: // meaningful |
| 3458 | case Qualifiers::OCL_Strong: // meaningful |
| 3459 | break; |
| 3460 | |
| 3461 | case Qualifiers::OCL_ExplicitNone: |
| 3462 | case Qualifiers::OCL_Autoreleasing: |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3463 | S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3464 | << (lifetime == Qualifiers::OCL_Autoreleasing); |
| 3465 | break; |
| 3466 | } |
| 3467 | |
Chandler Carruth | 87c4460 | 2011-07-01 23:49:12 +0000 | [diff] [blame] | 3468 | D->addAttr(::new (S.Context) |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3469 | ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3470 | } |
| 3471 | |
Charles Davis | f0122fe | 2010-02-16 18:27:26 +0000 | [diff] [blame] | 3472 | static bool isKnownDeclSpecAttr(const AttributeList &Attr) { |
Aaron Ballman | 9428772 | 2012-02-23 22:46:33 +0000 | [diff] [blame] | 3473 | switch (Attr.getKind()) { |
| 3474 | default: |
| 3475 | return false; |
| 3476 | case AttributeList::AT_dllimport: |
| 3477 | case AttributeList::AT_dllexport: |
| 3478 | case AttributeList::AT_uuid: |
| 3479 | case AttributeList::AT_deprecated: |
| 3480 | case AttributeList::AT_noreturn: |
| 3481 | case AttributeList::AT_nothrow: |
| 3482 | case AttributeList::AT_naked: |
| 3483 | case AttributeList::AT_noinline: |
| 3484 | return true; |
| 3485 | } |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3486 | } |
| 3487 | |
| 3488 | //===----------------------------------------------------------------------===// |
| 3489 | // Microsoft specific attribute handlers. |
| 3490 | //===----------------------------------------------------------------------===// |
| 3491 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3492 | static void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { |
Francois Pichet | 62ec1f2 | 2011-09-17 17:15:52 +0000 | [diff] [blame] | 3493 | if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3494 | // check the attribute arguments. |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3495 | if (!checkAttributeNumArgs(S, Attr, 1)) |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3496 | return; |
Chandler Carruth | 1731e20 | 2011-07-11 23:30:35 +0000 | [diff] [blame] | 3497 | |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3498 | Expr *Arg = Attr.getArg(0); |
| 3499 | StringLiteral *Str = dyn_cast<StringLiteral>(Arg); |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 3500 | if (!Str || !Str->isAscii()) { |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3501 | S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) |
| 3502 | << "uuid" << 1; |
| 3503 | return; |
| 3504 | } |
| 3505 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3506 | StringRef StrRef = Str->getString(); |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3507 | |
| 3508 | bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && |
| 3509 | StrRef.back() == '}'; |
| 3510 | |
| 3511 | // Validate GUID length. |
| 3512 | if (IsCurly && StrRef.size() != 38) { |
| 3513 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3514 | return; |
| 3515 | } |
| 3516 | if (!IsCurly && StrRef.size() != 36) { |
| 3517 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3518 | return; |
| 3519 | } |
| 3520 | |
| 3521 | // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or |
| 3522 | // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 3523 | StringRef::iterator I = StrRef.begin(); |
Anders Carlsson | f89e042 | 2011-01-23 21:07:30 +0000 | [diff] [blame] | 3524 | if (IsCurly) // Skip the optional '{' |
| 3525 | ++I; |
| 3526 | |
| 3527 | for (int i = 0; i < 36; ++i) { |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3528 | if (i == 8 || i == 13 || i == 18 || i == 23) { |
| 3529 | if (*I != '-') { |
| 3530 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3531 | return; |
| 3532 | } |
| 3533 | } else if (!isxdigit(*I)) { |
| 3534 | S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); |
| 3535 | return; |
| 3536 | } |
| 3537 | I++; |
| 3538 | } |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3539 | |
Argyrios Kyrtzidis | 768d6ca | 2011-09-13 16:05:58 +0000 | [diff] [blame] | 3540 | D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3541 | Str->getString())); |
Francois Pichet | d3d3be9 | 2010-12-20 01:41:49 +0000 | [diff] [blame] | 3542 | } else |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3543 | S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; |
Charles Davis | f0122fe | 2010-02-16 18:27:26 +0000 | [diff] [blame] | 3544 | } |
| 3545 | |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3546 | //===----------------------------------------------------------------------===// |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3547 | // Top Level Sema Entry Points |
| 3548 | //===----------------------------------------------------------------------===// |
| 3549 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3550 | static void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, |
| 3551 | const AttributeList &Attr) { |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3552 | switch (Attr.getKind()) { |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3553 | case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; |
| 3554 | case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; |
| 3555 | case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3556 | default: |
| 3557 | break; |
| 3558 | } |
| 3559 | } |
Abramo Bagnara | e215f72 | 2010-04-30 13:10:51 +0000 | [diff] [blame] | 3560 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3561 | static void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, |
| 3562 | const AttributeList &Attr) { |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3563 | switch (Attr.getKind()) { |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3564 | case AttributeList::AT_ibaction: handleIBAction(S, D, Attr); break; |
| 3565 | case AttributeList::AT_iboutlet: handleIBOutlet(S, D, Attr); break; |
| 3566 | case AttributeList::AT_iboutletcollection: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3567 | handleIBOutletCollection(S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3568 | case AttributeList::AT_address_space: |
Peter Collingbourne | 207f4d8 | 2011-03-18 22:38:29 +0000 | [diff] [blame] | 3569 | case AttributeList::AT_opencl_image_access: |
Fariborz Jahanian | ba372b8 | 2009-02-18 17:52:36 +0000 | [diff] [blame] | 3570 | case AttributeList::AT_objc_gc: |
John Thompson | 6e132aa | 2009-12-04 21:51:28 +0000 | [diff] [blame] | 3571 | case AttributeList::AT_vector_size: |
Bob Wilson | 4211bb6 | 2010-11-16 00:32:24 +0000 | [diff] [blame] | 3572 | case AttributeList::AT_neon_vector_type: |
| 3573 | case AttributeList::AT_neon_polyvector_type: |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3574 | // Ignore these, these are type attributes, handled by |
| 3575 | // ProcessTypeAttributes. |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3576 | break; |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3577 | case AttributeList::AT_device: |
| 3578 | case AttributeList::AT_host: |
| 3579 | case AttributeList::AT_overloadable: |
| 3580 | // Ignore, this is a non-inheritable attribute, handled |
| 3581 | // by ProcessNonInheritableDeclAttr. |
| 3582 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3583 | case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; |
| 3584 | case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3585 | case AttributeList::AT_always_inline: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3586 | handleAlwaysInlineAttr (S, D, Attr); break; |
Ted Kremenek | b725232 | 2009-04-10 00:01:14 +0000 | [diff] [blame] | 3587 | case AttributeList::AT_analyzer_noreturn: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3588 | handleAnalyzerNoReturnAttr (S, D, Attr); break; |
| 3589 | case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; |
| 3590 | case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 3591 | case AttributeList::AT_carries_dependency: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3592 | handleDependencyAttr (S, D, Attr); break; |
| 3593 | case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; |
| 3594 | case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; |
| 3595 | case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; |
| 3596 | case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; |
| 3597 | case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3598 | case AttributeList::AT_ext_vector_type: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3599 | handleExtVectorTypeAttr(S, scope, D, Attr); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3600 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3601 | case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; |
| 3602 | case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; |
| 3603 | case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; |
| 3604 | case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3605 | case AttributeList::AT_launch_bounds: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3606 | handleLaunchBoundsAttr(S, D, Attr); |
Peter Collingbourne | 7b38198 | 2010-12-12 23:03:07 +0000 | [diff] [blame] | 3607 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3608 | case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; |
| 3609 | case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; |
| 3610 | case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; |
| 3611 | case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; |
| 3612 | case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 3613 | case AttributeList::AT_ownership_returns: |
| 3614 | case AttributeList::AT_ownership_takes: |
| 3615 | case AttributeList::AT_ownership_holds: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3616 | handleOwnershipAttr (S, D, Attr); break; |
| 3617 | case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; |
| 3618 | case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; |
| 3619 | case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; |
| 3620 | case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; |
| 3621 | case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3622 | |
Argyrios Kyrtzidis | b8b0313 | 2011-06-24 00:08:59 +0000 | [diff] [blame] | 3623 | case AttributeList::AT_objc_ownership: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3624 | handleObjCOwnershipAttr(S, D, Attr); break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3625 | case AttributeList::AT_objc_precise_lifetime: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3626 | handleObjCPreciseLifetimeAttr(S, D, Attr); break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3627 | |
John McCall | dc7c5ad | 2011-07-22 08:53:00 +0000 | [diff] [blame] | 3628 | case AttributeList::AT_objc_returns_inner_pointer: |
| 3629 | handleObjCReturnsInnerPointerAttr(S, D, Attr); break; |
| 3630 | |
John McCall | fe98da0 | 2011-09-29 07:17:38 +0000 | [diff] [blame] | 3631 | case AttributeList::AT_ns_bridged: |
| 3632 | handleNSBridgedAttr(S, scope, D, Attr); break; |
| 3633 | |
John McCall | 8dfac0b | 2011-09-30 05:12:12 +0000 | [diff] [blame] | 3634 | case AttributeList::AT_cf_audited_transfer: |
| 3635 | case AttributeList::AT_cf_unknown_transfer: |
| 3636 | handleCFTransferAttr(S, D, Attr); break; |
| 3637 | |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3638 | // Checker-specific. |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3639 | case AttributeList::AT_cf_consumed: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3640 | case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3641 | case AttributeList::AT_ns_consumes_self: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3642 | handleNSConsumesSelfAttr(S, D, Attr); break; |
John McCall | c7ad381 | 2011-01-25 03:31:58 +0000 | [diff] [blame] | 3643 | |
| 3644 | case AttributeList::AT_ns_returns_autoreleased: |
Ted Kremenek | 31c780d | 2010-02-18 00:05:45 +0000 | [diff] [blame] | 3645 | case AttributeList::AT_ns_returns_not_retained: |
| 3646 | case AttributeList::AT_cf_returns_not_retained: |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3647 | case AttributeList::AT_ns_returns_retained: |
| 3648 | case AttributeList::AT_cf_returns_retained: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3649 | handleNSReturnsRetainedAttr(S, D, Attr); break; |
Ted Kremenek | b71368d | 2009-05-09 02:44:38 +0000 | [diff] [blame] | 3650 | |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3651 | case AttributeList::AT_reqd_work_group_size: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3652 | handleReqdWorkGroupSize(S, D, Attr); break; |
Nate Begeman | 6f3d838 | 2009-06-26 06:32:41 +0000 | [diff] [blame] | 3653 | |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 3654 | case AttributeList::AT_init_priority: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3655 | handleInitPriorityAttr(S, D, Attr); break; |
Fariborz Jahanian | 521f12d | 2010-06-18 21:44:06 +0000 | [diff] [blame] | 3656 | |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3657 | case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3658 | case AttributeList::AT_ms_struct: handleMsStructAttr (S, D, Attr); break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3659 | case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; |
| 3660 | case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3661 | case AttributeList::AT_objc_arc_weak_reference_unavailable: |
Fariborz Jahanian | 742352a | 2011-07-06 19:24:05 +0000 | [diff] [blame] | 3662 | handleArcWeakrefUnavailableAttr (S, D, Attr); |
| 3663 | break; |
Ted Kremenek | 71207fc | 2012-01-05 22:47:47 +0000 | [diff] [blame] | 3664 | case AttributeList::AT_objc_requires_property_definitions: |
| 3665 | handleObjCRequiresPropertyDefsAttr (S, D, Attr); |
Fariborz Jahanian | e23dcf3 | 2012-01-03 18:45:41 +0000 | [diff] [blame] | 3666 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3667 | case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; |
Rafael Espindola | f87cced | 2011-10-03 14:59:42 +0000 | [diff] [blame] | 3668 | case AttributeList::AT_returns_twice: |
| 3669 | handleReturnsTwiceAttr(S, D, Attr); |
| 3670 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3671 | case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; |
| 3672 | case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; |
| 3673 | case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); |
Chris Lattner | 026dc96 | 2009-02-14 07:37:35 +0000 | [diff] [blame] | 3674 | break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3675 | case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; |
| 3676 | case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; |
| 3677 | case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3678 | case AttributeList::AT_transparent_union: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3679 | handleTransparentUnionAttr(S, D, Attr); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3680 | break; |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 3681 | case AttributeList::AT_objc_exception: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3682 | handleObjCExceptionAttr(S, D, Attr); |
Chris Lattner | 0db29ec | 2009-02-14 08:09:34 +0000 | [diff] [blame] | 3683 | break; |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 3684 | case AttributeList::AT_objc_method_family: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3685 | handleObjCMethodFamilyAttr(S, D, Attr); |
John McCall | d5313b0 | 2011-03-02 11:33:24 +0000 | [diff] [blame] | 3686 | break; |
Michael Han | e53ac8a | 2012-03-07 00:12:16 +0000 | [diff] [blame] | 3687 | case AttributeList::AT_NSObject: handleObjCNSObject (S, D, Attr); break; |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3688 | case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; |
| 3689 | case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; |
| 3690 | case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; |
| 3691 | case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; |
| 3692 | case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; |
| 3693 | case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; |
| 3694 | case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; |
| 3695 | case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3696 | case AttributeList::IgnoredAttribute: |
Anders Carlsson | 05f8e47 | 2009-02-13 08:16:43 +0000 | [diff] [blame] | 3697 | // Just ignore |
| 3698 | break; |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 3699 | case AttributeList::AT_no_instrument_function: // Interacts with -pg. |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3700 | handleNoInstrumentFunctionAttr(S, D, Attr); |
Chris Lattner | 7255a2d | 2010-06-22 00:03:40 +0000 | [diff] [blame] | 3701 | break; |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 3702 | case AttributeList::AT_stdcall: |
| 3703 | case AttributeList::AT_cdecl: |
| 3704 | case AttributeList::AT_fastcall: |
Douglas Gregor | f813a2c | 2010-05-18 16:57:00 +0000 | [diff] [blame] | 3705 | case AttributeList::AT_thiscall: |
Dawn Perchik | 52fc314 | 2010-09-03 01:29:35 +0000 | [diff] [blame] | 3706 | case AttributeList::AT_pascal: |
Anton Korobeynikov | 414d896 | 2011-04-14 20:06:49 +0000 | [diff] [blame] | 3707 | case AttributeList::AT_pcs: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3708 | handleCallConvAttr(S, D, Attr); |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 3709 | break; |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3710 | case AttributeList::AT_opencl_kernel_function: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3711 | handleOpenCLKernelAttr(S, D, Attr); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 3712 | break; |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3713 | case AttributeList::AT_uuid: |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3714 | handleUuidAttr(S, D, Attr); |
Francois Pichet | 1154214 | 2010-12-19 06:50:37 +0000 | [diff] [blame] | 3715 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3716 | |
| 3717 | // Thread safety attributes: |
| 3718 | case AttributeList::AT_guarded_var: |
| 3719 | handleGuardedVarAttr(S, D, Attr); |
| 3720 | break; |
| 3721 | case AttributeList::AT_pt_guarded_var: |
| 3722 | handleGuardedVarAttr(S, D, Attr, /*pointer = */true); |
| 3723 | break; |
| 3724 | case AttributeList::AT_scoped_lockable: |
| 3725 | handleLockableAttr(S, D, Attr, /*scoped = */true); |
| 3726 | break; |
Kostya Serebryany | 71efba0 | 2012-01-24 19:25:38 +0000 | [diff] [blame] | 3727 | case AttributeList::AT_no_address_safety_analysis: |
| 3728 | handleNoAddressSafetyAttr(S, D, Attr); |
| 3729 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3730 | case AttributeList::AT_no_thread_safety_analysis: |
| 3731 | handleNoThreadSafetyAttr(S, D, Attr); |
| 3732 | break; |
| 3733 | case AttributeList::AT_lockable: |
| 3734 | handleLockableAttr(S, D, Attr); |
| 3735 | break; |
Caitlin Sadowski | db33e14 | 2011-07-28 20:12:35 +0000 | [diff] [blame] | 3736 | case AttributeList::AT_guarded_by: |
| 3737 | handleGuardedByAttr(S, D, Attr); |
| 3738 | break; |
| 3739 | case AttributeList::AT_pt_guarded_by: |
| 3740 | handleGuardedByAttr(S, D, Attr, /*pointer = */true); |
| 3741 | break; |
| 3742 | case AttributeList::AT_exclusive_lock_function: |
| 3743 | handleLockFunAttr(S, D, Attr, /*exclusive = */true); |
| 3744 | break; |
| 3745 | case AttributeList::AT_exclusive_locks_required: |
| 3746 | handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); |
| 3747 | break; |
| 3748 | case AttributeList::AT_exclusive_trylock_function: |
| 3749 | handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); |
| 3750 | break; |
| 3751 | case AttributeList::AT_lock_returned: |
| 3752 | handleLockReturnedAttr(S, D, Attr); |
| 3753 | break; |
| 3754 | case AttributeList::AT_locks_excluded: |
| 3755 | handleLocksExcludedAttr(S, D, Attr); |
| 3756 | break; |
| 3757 | case AttributeList::AT_shared_lock_function: |
| 3758 | handleLockFunAttr(S, D, Attr); |
| 3759 | break; |
| 3760 | case AttributeList::AT_shared_locks_required: |
| 3761 | handleLocksRequiredAttr(S, D, Attr); |
| 3762 | break; |
| 3763 | case AttributeList::AT_shared_trylock_function: |
| 3764 | handleTrylockFunAttr(S, D, Attr); |
| 3765 | break; |
| 3766 | case AttributeList::AT_unlock_function: |
| 3767 | handleUnlockFunAttr(S, D, Attr); |
| 3768 | break; |
| 3769 | case AttributeList::AT_acquired_before: |
| 3770 | handleAcquireOrderAttr(S, D, Attr, /*before = */true); |
| 3771 | break; |
| 3772 | case AttributeList::AT_acquired_after: |
| 3773 | handleAcquireOrderAttr(S, D, Attr, /*before = */false); |
| 3774 | break; |
Caitlin Sadowski | fdde9e7 | 2011-07-28 17:21:07 +0000 | [diff] [blame] | 3775 | |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3776 | default: |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 3777 | // Ask target about the attribute. |
| 3778 | const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); |
| 3779 | if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) |
Chandler Carruth | 7d5c45e | 2010-07-08 09:42:26 +0000 | [diff] [blame] | 3780 | S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) |
| 3781 | << Attr.getName(); |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3782 | break; |
| 3783 | } |
| 3784 | } |
| 3785 | |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3786 | /// ProcessDeclAttribute - Apply the specific attribute to the specified decl if |
| 3787 | /// the attribute applies to decls. If the attribute is a type attribute, just |
| 3788 | /// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to |
| 3789 | /// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3790 | static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, |
| 3791 | const AttributeList &Attr, |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3792 | bool NonInheritable, bool Inheritable) { |
| 3793 | if (Attr.isInvalid()) |
| 3794 | return; |
| 3795 | |
| 3796 | if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) |
| 3797 | // FIXME: Try to deal with other __declspec attributes! |
| 3798 | return; |
| 3799 | |
| 3800 | if (NonInheritable) |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3801 | ProcessNonInheritableDeclAttr(S, scope, D, Attr); |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3802 | |
| 3803 | if (Inheritable) |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3804 | ProcessInheritableDeclAttr(S, scope, D, Attr); |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3805 | } |
| 3806 | |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3807 | /// ProcessDeclAttributeList - Apply all the decl attributes in the specified |
| 3808 | /// attribute list to the specified decl, ignoring any type attributes. |
Eric Christopher | f48f367 | 2010-12-01 22:13:54 +0000 | [diff] [blame] | 3809 | void Sema::ProcessDeclAttributeList(Scope *S, Decl *D, |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3810 | const AttributeList *AttrList, |
| 3811 | bool NonInheritable, bool Inheritable) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3812 | for (const AttributeList* l = AttrList; l; l = l->getNext()) { |
Chandler Carruth | 1b03c87 | 2011-07-02 00:01:44 +0000 | [diff] [blame] | 3813 | ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3814 | } |
| 3815 | |
| 3816 | // GCC accepts |
| 3817 | // static int a9 __attribute__((weakref)); |
| 3818 | // but that looks really pointless. We reject it. |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3819 | if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3820 | Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << |
Ted Kremenek | dd0e490 | 2010-07-31 01:52:11 +0000 | [diff] [blame] | 3821 | dyn_cast<NamedDecl>(D)->getNameAsString(); |
Rafael Espindola | 11e8ce7 | 2010-02-23 22:00:30 +0000 | [diff] [blame] | 3822 | return; |
Chris Lattner | 803d080 | 2008-06-29 00:43:07 +0000 | [diff] [blame] | 3823 | } |
| 3824 | } |
| 3825 | |
Erik Verbruggen | 5f1c822 | 2011-10-13 09:41:32 +0000 | [diff] [blame] | 3826 | // Annotation attributes are the only attributes allowed after an access |
| 3827 | // specifier. |
| 3828 | bool Sema::ProcessAccessDeclAttributeList(AccessSpecDecl *ASDecl, |
| 3829 | const AttributeList *AttrList) { |
| 3830 | for (const AttributeList* l = AttrList; l; l = l->getNext()) { |
| 3831 | if (l->getKind() == AttributeList::AT_annotate) { |
| 3832 | handleAnnotateAttr(*this, ASDecl, *l); |
| 3833 | } else { |
| 3834 | Diag(l->getLoc(), diag::err_only_annotate_after_access_spec); |
| 3835 | return true; |
| 3836 | } |
| 3837 | } |
| 3838 | |
| 3839 | return false; |
| 3840 | } |
| 3841 | |
John McCall | e82247a | 2011-10-01 05:17:03 +0000 | [diff] [blame] | 3842 | /// checkUnusedDeclAttributes - Check a list of attributes to see if it |
| 3843 | /// contains any decl attributes that we should warn about. |
| 3844 | static void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { |
| 3845 | for ( ; A; A = A->getNext()) { |
| 3846 | // Only warn if the attribute is an unignored, non-type attribute. |
| 3847 | if (A->isUsedAsTypeAttr()) continue; |
| 3848 | if (A->getKind() == AttributeList::IgnoredAttribute) continue; |
| 3849 | |
| 3850 | if (A->getKind() == AttributeList::UnknownAttribute) { |
| 3851 | S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) |
| 3852 | << A->getName() << A->getRange(); |
| 3853 | } else { |
| 3854 | S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) |
| 3855 | << A->getName() << A->getRange(); |
| 3856 | } |
| 3857 | } |
| 3858 | } |
| 3859 | |
| 3860 | /// checkUnusedDeclAttributes - Given a declarator which is not being |
| 3861 | /// used to build a declaration, complain about any decl attributes |
| 3862 | /// which might be lying around on it. |
| 3863 | void Sema::checkUnusedDeclAttributes(Declarator &D) { |
| 3864 | ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); |
| 3865 | ::checkUnusedDeclAttributes(*this, D.getAttributes()); |
| 3866 | for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) |
| 3867 | ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); |
| 3868 | } |
| 3869 | |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3870 | /// DeclClonePragmaWeak - clone existing decl (maybe definition), |
| 3871 | /// #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] | 3872 | NamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, |
| 3873 | SourceLocation Loc) { |
Ryan Flynn | 7b1fdbd | 2009-07-31 02:52:19 +0000 | [diff] [blame] | 3874 | assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3875 | NamedDecl *NewD = 0; |
| 3876 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3877 | FunctionDecl *NewFD; |
| 3878 | // FIXME: Missing call to CheckFunctionDeclaration(). |
| 3879 | // FIXME: Mangling? |
| 3880 | // FIXME: Is the qualifier info correct? |
| 3881 | // FIXME: Is the DeclContext correct? |
| 3882 | NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), |
| 3883 | Loc, Loc, DeclarationName(II), |
| 3884 | FD->getType(), FD->getTypeSourceInfo(), |
| 3885 | SC_None, SC_None, |
| 3886 | false/*isInlineSpecified*/, |
| 3887 | FD->hasPrototype(), |
| 3888 | false/*isConstexprSpecified*/); |
| 3889 | NewD = NewFD; |
| 3890 | |
| 3891 | if (FD->getQualifier()) |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 3892 | NewFD->setQualifierInfo(FD->getQualifierLoc()); |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3893 | |
| 3894 | // Fake up parameter variables; they are declared as if this were |
| 3895 | // a typedef. |
| 3896 | QualType FDTy = FD->getType(); |
| 3897 | if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { |
| 3898 | SmallVector<ParmVarDecl*, 16> Params; |
| 3899 | for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), |
| 3900 | AE = FT->arg_type_end(); AI != AE; ++AI) { |
| 3901 | ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); |
| 3902 | Param->setScopeInfo(0, Params.size()); |
| 3903 | Params.push_back(Param); |
| 3904 | } |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 3905 | NewFD->setParams(Params); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3906 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3907 | } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { |
| 3908 | NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 3909 | VD->getInnerLocStart(), VD->getLocation(), II, |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 3910 | VD->getType(), VD->getTypeSourceInfo(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 3911 | VD->getStorageClass(), |
| 3912 | VD->getStorageClassAsWritten()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3913 | if (VD->getQualifier()) { |
| 3914 | VarDecl *NewVD = cast<VarDecl>(NewD); |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 3915 | NewVD->setQualifierInfo(VD->getQualifierLoc()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 3916 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3917 | } |
| 3918 | return NewD; |
| 3919 | } |
| 3920 | |
| 3921 | /// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak |
| 3922 | /// applied to it, possibly with an alias. |
Ryan Flynn | 7b1fdbd | 2009-07-31 02:52:19 +0000 | [diff] [blame] | 3923 | void Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { |
Chris Lattner | c4f1fb1 | 2009-09-08 18:10:11 +0000 | [diff] [blame] | 3924 | if (W.getUsed()) return; // only do this once |
| 3925 | W.setUsed(true); |
| 3926 | if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) |
| 3927 | IdentifierInfo *NDId = ND->getIdentifier(); |
Eli Friedman | 900693b | 2011-09-07 04:05:06 +0000 | [diff] [blame] | 3928 | NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 3929 | NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, |
| 3930 | NDId->getName())); |
| 3931 | NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); |
Chris Lattner | c4f1fb1 | 2009-09-08 18:10:11 +0000 | [diff] [blame] | 3932 | WeakTopLevelDecl.push_back(NewD); |
| 3933 | // FIXME: "hideous" code from Sema::LazilyCreateBuiltin |
| 3934 | // to insert Decl at TU scope, sorry. |
| 3935 | DeclContext *SavedContext = CurContext; |
| 3936 | CurContext = Context.getTranslationUnitDecl(); |
| 3937 | PushOnScopeChains(NewD, S); |
| 3938 | CurContext = SavedContext; |
| 3939 | } else { // just add weak to existing |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 3940 | ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3941 | } |
| 3942 | } |
| 3943 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3944 | /// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in |
| 3945 | /// it, apply them to D. This is a bit tricky because PD can have attributes |
| 3946 | /// 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] | 3947 | void Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, |
| 3948 | bool NonInheritable, bool Inheritable) { |
John McCall | d4aff0e | 2010-10-27 00:59:00 +0000 | [diff] [blame] | 3949 | // It's valid to "forward-declare" #pragma weak, in which case we |
| 3950 | // have to do this. |
Douglas Gregor | 31e37b2 | 2011-07-28 18:09:57 +0000 | [diff] [blame] | 3951 | if (Inheritable) { |
| 3952 | LoadExternalWeakUndeclaredIdentifiers(); |
| 3953 | if (!WeakUndeclaredIdentifiers.empty()) { |
| 3954 | if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { |
| 3955 | if (IdentifierInfo *Id = ND->getIdentifier()) { |
| 3956 | llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I |
| 3957 | = WeakUndeclaredIdentifiers.find(Id); |
| 3958 | if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { |
| 3959 | WeakInfo W = I->second; |
| 3960 | DeclApplyPragmaWeak(S, ND, W); |
| 3961 | WeakUndeclaredIdentifiers[Id] = W; |
| 3962 | } |
John McCall | d4aff0e | 2010-10-27 00:59:00 +0000 | [diff] [blame] | 3963 | } |
Ryan Flynn | e25ff83 | 2009-07-30 03:15:39 +0000 | [diff] [blame] | 3964 | } |
| 3965 | } |
| 3966 | } |
| 3967 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3968 | // Apply decl attributes from the DeclSpec if present. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 3969 | if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3970 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3971 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3972 | // Walk the declarator structure, applying decl attributes that were in a type |
| 3973 | // position to the decl itself. This handles cases like: |
| 3974 | // int *__attr__(x)** D; |
| 3975 | // when X is a decl attribute. |
| 3976 | for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) |
| 3977 | if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3978 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Mike Stump | bf91650 | 2009-07-24 19:02:52 +0000 | [diff] [blame] | 3979 | |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3980 | // Finally, apply any attributes on the decl itself. |
| 3981 | if (const AttributeList *Attrs = PD.getAttributes()) |
Peter Collingbourne | 6070039 | 2011-01-21 02:08:45 +0000 | [diff] [blame] | 3982 | ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); |
Chris Lattner | 0744e5f | 2008-06-29 00:23:49 +0000 | [diff] [blame] | 3983 | } |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 3984 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3985 | /// Is the given declaration allowed to use a forbidden type? |
| 3986 | static bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { |
| 3987 | // Private ivars are always okay. Unfortunately, people don't |
| 3988 | // always properly make their ivars private, even in system headers. |
| 3989 | // Plus we need to make fields okay, too. |
Fariborz Jahanian | a6b3380 | 2011-09-26 21:23:35 +0000 | [diff] [blame] | 3990 | // Function declarations in sys headers will be marked unavailable. |
| 3991 | if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && |
| 3992 | !isa<FunctionDecl>(decl)) |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 3993 | return false; |
| 3994 | |
| 3995 | // Require it to be declared in a system header. |
| 3996 | return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); |
| 3997 | } |
| 3998 | |
| 3999 | /// Handle a delayed forbidden-type diagnostic. |
| 4000 | static void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, |
| 4001 | Decl *decl) { |
| 4002 | if (decl && isForbiddenTypeAllowed(S, decl)) { |
| 4003 | decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, |
| 4004 | "this system declaration uses an unsupported type")); |
| 4005 | return; |
| 4006 | } |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame^] | 4007 | if (S.getLangOpts().ObjCAutoRefCount) |
Fariborz Jahanian | 175fb10 | 2011-10-03 22:11:57 +0000 | [diff] [blame] | 4008 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { |
| 4009 | // FIXME. we may want to supress diagnostics for all |
| 4010 | // kind of forbidden type messages on unavailable functions. |
| 4011 | if (FD->hasAttr<UnavailableAttr>() && |
| 4012 | diag.getForbiddenTypeDiagnostic() == |
| 4013 | diag::err_arc_array_param_no_ownership) { |
| 4014 | diag.Triggered = true; |
| 4015 | return; |
| 4016 | } |
| 4017 | } |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4018 | |
| 4019 | S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) |
| 4020 | << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); |
| 4021 | diag.Triggered = true; |
| 4022 | } |
| 4023 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4024 | // This duplicates a vector push_back but hides the need to know the |
| 4025 | // size of the type. |
| 4026 | void Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { |
| 4027 | assert(StackSize <= StackCapacity); |
| 4028 | |
| 4029 | // Grow the stack if necessary. |
| 4030 | if (StackSize == StackCapacity) { |
| 4031 | unsigned newCapacity = 2 * StackCapacity + 2; |
| 4032 | char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; |
| 4033 | const char *oldBuffer = (const char*) Stack; |
| 4034 | |
| 4035 | if (StackCapacity) |
| 4036 | memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); |
| 4037 | |
| 4038 | delete[] oldBuffer; |
| 4039 | Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); |
| 4040 | StackCapacity = newCapacity; |
| 4041 | } |
| 4042 | |
| 4043 | assert(StackSize < StackCapacity); |
| 4044 | new (&Stack[StackSize++]) DelayedDiagnostic(diag); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4045 | } |
| 4046 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4047 | void Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, |
| 4048 | Decl *decl) { |
| 4049 | DelayedDiagnostics &DD = S.DelayedDiagnostics; |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4050 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4051 | // Check the invariants. |
| 4052 | assert(DD.StackSize >= state.SavedStackSize); |
| 4053 | assert(state.SavedStackSize >= DD.ActiveStackBase); |
| 4054 | assert(DD.ParsingDepth > 0); |
| 4055 | |
| 4056 | // Drop the parsing depth. |
| 4057 | DD.ParsingDepth--; |
| 4058 | |
| 4059 | // If there are no active diagnostics, we're done. |
| 4060 | if (DD.StackSize == DD.ActiveStackBase) |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4061 | return; |
| 4062 | |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4063 | // We only want to actually emit delayed diagnostics when we |
| 4064 | // successfully parsed a decl. |
John McCall | e8c904f | 2012-01-26 20:04:03 +0000 | [diff] [blame] | 4065 | if (decl) { |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4066 | // We emit all the active diagnostics, not just those starting |
| 4067 | // 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] | 4068 | // decl spec and another for each declarator; in a decl group like: |
| 4069 | // deprecated_typedef foo, *bar, baz(); |
| 4070 | // only the declarator pops will be passed decls. This is correct; |
| 4071 | // we really do need to consider delayed diagnostics from the decl spec |
| 4072 | // for each of the different declarations. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4073 | for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { |
| 4074 | DelayedDiagnostic &diag = DD.Stack[i]; |
| 4075 | if (diag.Triggered) |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4076 | continue; |
| 4077 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4078 | switch (diag.Kind) { |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4079 | case DelayedDiagnostic::Deprecation: |
John McCall | e8c904f | 2012-01-26 20:04:03 +0000 | [diff] [blame] | 4080 | // Don't bother giving deprecation diagnostics if the decl is invalid. |
| 4081 | if (!decl->isInvalidDecl()) |
| 4082 | S.HandleDelayedDeprecationCheck(diag, decl); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4083 | break; |
| 4084 | |
| 4085 | case DelayedDiagnostic::Access: |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4086 | S.HandleDelayedAccessCheck(diag, decl); |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4087 | break; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 4088 | |
| 4089 | case DelayedDiagnostic::ForbiddenType: |
| 4090 | handleDelayedForbiddenType(S, diag, decl); |
| 4091 | break; |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4092 | } |
| 4093 | } |
| 4094 | } |
| 4095 | |
John McCall | 58e6f34 | 2010-03-16 05:22:47 +0000 | [diff] [blame] | 4096 | // Destroy all the delayed diagnostics we're about to pop off. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4097 | for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) |
Douglas Gregor | 2923380 | 2011-03-23 15:13:44 +0000 | [diff] [blame] | 4098 | DD.Stack[i].Destroy(); |
John McCall | 58e6f34 | 2010-03-16 05:22:47 +0000 | [diff] [blame] | 4099 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4100 | DD.StackSize = state.SavedStackSize; |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4101 | } |
| 4102 | |
| 4103 | static bool isDeclDeprecated(Decl *D) { |
| 4104 | do { |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 4105 | if (D->isDeprecated()) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4106 | return true; |
Argyrios Kyrtzidis | c076e37 | 2011-10-06 23:23:27 +0000 | [diff] [blame] | 4107 | // A category implicitly has the availability of the interface. |
| 4108 | if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) |
| 4109 | return CatD->getClassInterface()->isDeprecated(); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4110 | } while ((D = cast_or_null<Decl>(D->getDeclContext()))); |
| 4111 | return false; |
| 4112 | } |
| 4113 | |
John McCall | 9c3087b | 2010-08-26 02:13:20 +0000 | [diff] [blame] | 4114 | void Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4115 | Decl *Ctx) { |
| 4116 | if (isDeclDeprecated(Ctx)) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4117 | return; |
| 4118 | |
John McCall | 2f51448 | 2010-01-27 03:50:35 +0000 | [diff] [blame] | 4119 | DD.Triggered = true; |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4120 | if (!DD.getDeprecationMessage().empty()) |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4121 | Diag(DD.Loc, diag::warn_deprecated_message) |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4122 | << DD.getDeprecationDecl()->getDeclName() |
| 4123 | << DD.getDeprecationMessage(); |
Fariborz Jahanian | b0a6615 | 2012-03-02 21:50:02 +0000 | [diff] [blame] | 4124 | else if (DD.getUnknownObjCClass()) { |
| 4125 | Diag(DD.Loc, diag::warn_deprecated_fwdclass_message) |
| 4126 | << DD.getDeprecationDecl()->getDeclName(); |
| 4127 | Diag(DD.getUnknownObjCClass()->getLocation(), diag::note_forward_class); |
| 4128 | } |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4129 | else |
| 4130 | Diag(DD.Loc, diag::warn_deprecated) |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4131 | << DD.getDeprecationDecl()->getDeclName(); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4132 | } |
| 4133 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 4134 | void Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4135 | SourceLocation Loc, |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4136 | const ObjCInterfaceDecl *UnknownObjCClass) { |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4137 | // Delay if we're currently parsing a declaration. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 4138 | if (DelayedDiagnostics.shouldDelayDiagnostics()) { |
Fariborz Jahanian | b0a6615 | 2012-03-02 21:50:02 +0000 | [diff] [blame] | 4139 | DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, |
| 4140 | UnknownObjCClass, |
| 4141 | Message)); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4142 | return; |
| 4143 | } |
| 4144 | |
| 4145 | // Otherwise, don't warn if our current context is deprecated. |
Argyrios Kyrtzidis | 3a38744 | 2011-10-06 23:23:20 +0000 | [diff] [blame] | 4146 | if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4147 | return; |
Benjamin Kramer | ce2d186 | 2010-10-09 15:49:00 +0000 | [diff] [blame] | 4148 | if (!Message.empty()) |
Fariborz Jahanian | c4b35cf | 2010-10-06 21:18:44 +0000 | [diff] [blame] | 4149 | Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() |
| 4150 | << Message; |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4151 | else { |
Peter Collingbourne | 743b82b | 2011-01-02 19:53:12 +0000 | [diff] [blame] | 4152 | if (!UnknownObjCClass) |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4153 | Diag(Loc, diag::warn_deprecated) << D->getDeclName(); |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4154 | else { |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4155 | Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); |
Fariborz Jahanian | 89ebaed | 2011-04-23 17:27:19 +0000 | [diff] [blame] | 4156 | Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); |
| 4157 | } |
Fariborz Jahanian | 8e5fc9b | 2010-12-21 00:44:01 +0000 | [diff] [blame] | 4158 | } |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 4159 | } |