Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 1 | //===--- SemaDeclObjC.cpp - Semantic Analysis for ObjC Declarations -------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file was developed by Chris Lattner and is distributed under |
| 6 | // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements semantic analysis for Objective C declarations. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "Sema.h" |
| 15 | #include "clang/AST/ASTContext.h" |
| 16 | #include "clang/AST/DeclObjC.h" |
| 17 | #include "clang/Parse/Scope.h" |
| 18 | |
| 19 | using namespace clang; |
| 20 | |
| 21 | /// ObjcActOnStartOfMethodDef - This routine sets up parameters; invisible |
| 22 | /// and user declared, in the method definition's AST. |
| 23 | void Sema::ObjcActOnStartOfMethodDef(Scope *FnBodyScope, DeclTy *D) { |
| 24 | assert(CurFunctionDecl == 0 && "Method parsing confused"); |
| 25 | ObjcMethodDecl *MDecl = dyn_cast<ObjcMethodDecl>(static_cast<Decl *>(D)); |
| 26 | assert(MDecl != 0 && "Not a method declarator!"); |
| 27 | |
| 28 | // Allow all of Sema to see that we are entering a method definition. |
| 29 | CurMethodDecl = MDecl; |
| 30 | |
| 31 | // Create Decl objects for each parameter, entrring them in the scope for |
| 32 | // binding to their use. |
| 33 | struct DeclaratorChunk::ParamInfo PI; |
| 34 | |
| 35 | // Insert the invisible arguments, self and _cmd! |
| 36 | PI.Ident = &Context.Idents.get("self"); |
| 37 | PI.IdentLoc = SourceLocation(); // synthesized vars have a null location. |
| 38 | PI.InvalidType = false; |
| 39 | if (MDecl->isInstance()) { |
| 40 | QualType selfTy = Context.getObjcInterfaceType(MDecl->getClassInterface()); |
| 41 | selfTy = Context.getPointerType(selfTy); |
| 42 | PI.TypeInfo = selfTy.getAsOpaquePtr(); |
| 43 | } else |
| 44 | PI.TypeInfo = Context.getObjcIdType().getAsOpaquePtr(); |
| 45 | CurMethodDecl->setSelfDecl(ActOnParamDeclarator(PI, FnBodyScope)); |
| 46 | |
| 47 | PI.Ident = &Context.Idents.get("_cmd"); |
| 48 | PI.TypeInfo = Context.getObjcSelType().getAsOpaquePtr(); |
| 49 | ActOnParamDeclarator(PI, FnBodyScope); |
| 50 | |
| 51 | for (int i = 0; i < MDecl->getNumParams(); i++) { |
| 52 | ParmVarDecl *PDecl = MDecl->getParamDecl(i); |
| 53 | PI.Ident = PDecl->getIdentifier(); |
| 54 | PI.IdentLoc = PDecl->getLocation(); // user vars have a real location. |
| 55 | PI.TypeInfo = PDecl->getType().getAsOpaquePtr(); |
| 56 | ActOnParamDeclarator(PI, FnBodyScope); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | Sema::DeclTy *Sema::ActOnStartClassInterface( |
| 61 | SourceLocation AtInterfaceLoc, |
| 62 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 63 | IdentifierInfo *SuperName, SourceLocation SuperLoc, |
| 64 | IdentifierInfo **ProtocolNames, unsigned NumProtocols, |
| 65 | SourceLocation EndProtoLoc, AttributeList *AttrList) { |
| 66 | assert(ClassName && "Missing class identifier"); |
| 67 | |
| 68 | // Check for another declaration kind with the same name. |
| 69 | ScopedDecl *PrevDecl = LookupInterfaceDecl(ClassName); |
| 70 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 71 | Diag(ClassLoc, diag::err_redefinition_different_kind, |
| 72 | ClassName->getName()); |
| 73 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 74 | } |
| 75 | |
| 76 | ObjcInterfaceDecl* IDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 77 | if (IDecl) { |
| 78 | // Class already seen. Is it a forward declaration? |
| 79 | if (!IDecl->isForwardDecl()) |
| 80 | Diag(AtInterfaceLoc, diag::err_duplicate_class_def, IDecl->getName()); |
| 81 | else { |
| 82 | IDecl->setLocation(AtInterfaceLoc); |
| 83 | IDecl->setForwardDecl(false); |
| 84 | IDecl->AllocIntfRefProtocols(NumProtocols); |
| 85 | } |
| 86 | } |
| 87 | else { |
| 88 | IDecl = new ObjcInterfaceDecl(AtInterfaceLoc, NumProtocols, ClassName); |
| 89 | |
| 90 | // Chain & install the interface decl into the identifier. |
| 91 | IDecl->setNext(ClassName->getFETokenInfo<ScopedDecl>()); |
| 92 | ClassName->setFETokenInfo(IDecl); |
| 93 | |
| 94 | // Remember that this needs to be removed when the scope is popped. |
| 95 | TUScope->AddDecl(IDecl); |
| 96 | } |
| 97 | |
| 98 | if (SuperName) { |
| 99 | ObjcInterfaceDecl* SuperClassEntry = 0; |
| 100 | // Check if a different kind of symbol declared in this scope. |
| 101 | PrevDecl = LookupInterfaceDecl(SuperName); |
| 102 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 103 | Diag(SuperLoc, diag::err_redefinition_different_kind, |
| 104 | SuperName->getName()); |
| 105 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 106 | } |
| 107 | else { |
| 108 | // Check that super class is previously defined |
| 109 | SuperClassEntry = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 110 | |
| 111 | if (!SuperClassEntry || SuperClassEntry->isForwardDecl()) { |
| 112 | Diag(AtInterfaceLoc, diag::err_undef_superclass, |
| 113 | SuperClassEntry ? SuperClassEntry->getName() |
| 114 | : SuperName->getName(), |
| 115 | ClassName->getName()); |
| 116 | } |
| 117 | } |
| 118 | IDecl->setSuperClass(SuperClassEntry); |
| 119 | IDecl->setLocEnd(SuperLoc); |
| 120 | } else { // we have a root class. |
| 121 | IDecl->setLocEnd(ClassLoc); |
| 122 | } |
| 123 | |
| 124 | /// Check then save referenced protocols |
| 125 | if (NumProtocols) { |
| 126 | for (unsigned int i = 0; i != NumProtocols; i++) { |
| 127 | ObjcProtocolDecl* RefPDecl = ObjcProtocols[ProtocolNames[i]]; |
| 128 | if (!RefPDecl || RefPDecl->isForwardDecl()) |
| 129 | Diag(ClassLoc, diag::warn_undef_protocolref, |
| 130 | ProtocolNames[i]->getName(), |
| 131 | ClassName->getName()); |
| 132 | IDecl->setIntfRefProtocols((int)i, RefPDecl); |
| 133 | } |
| 134 | IDecl->setLocEnd(EndProtoLoc); |
| 135 | } |
| 136 | return IDecl; |
| 137 | } |
| 138 | |
| 139 | /// ActOnCompatiblityAlias - this action is called after complete parsing of |
| 140 | /// @compaatibility_alias declaration. It sets up the alias relationships. |
| 141 | Sema::DeclTy *Sema::ActOnCompatiblityAlias( |
| 142 | SourceLocation AtCompatibilityAliasLoc, |
| 143 | IdentifierInfo *AliasName, SourceLocation AliasLocation, |
| 144 | IdentifierInfo *ClassName, SourceLocation ClassLocation) { |
| 145 | // Look for previous declaration of alias name |
| 146 | ScopedDecl *ADecl = LookupScopedDecl(AliasName, Decl::IDNS_Ordinary, |
| 147 | AliasLocation, TUScope); |
| 148 | if (ADecl) { |
| 149 | if (isa<ObjcCompatibleAliasDecl>(ADecl)) { |
| 150 | Diag(AliasLocation, diag::warn_previous_alias_decl); |
| 151 | Diag(ADecl->getLocation(), diag::warn_previous_declaration); |
| 152 | } |
| 153 | else { |
| 154 | Diag(AliasLocation, diag::err_conflicting_aliasing_type, |
| 155 | AliasName->getName()); |
| 156 | Diag(ADecl->getLocation(), diag::err_previous_declaration); |
| 157 | } |
| 158 | return 0; |
| 159 | } |
| 160 | // Check for class declaration |
| 161 | ScopedDecl *CDecl = LookupScopedDecl(ClassName, Decl::IDNS_Ordinary, |
| 162 | ClassLocation, TUScope); |
| 163 | if (!CDecl || !isa<ObjcInterfaceDecl>(CDecl)) { |
| 164 | Diag(ClassLocation, diag::warn_undef_interface, |
| 165 | ClassName->getName()); |
| 166 | if (CDecl) |
| 167 | Diag(CDecl->getLocation(), diag::warn_previous_declaration); |
| 168 | return 0; |
| 169 | } |
| 170 | // Everything checked out, instantiate a new alias declaration ast |
| 171 | ObjcCompatibleAliasDecl *AliasDecl = |
| 172 | new ObjcCompatibleAliasDecl(AtCompatibilityAliasLoc, |
| 173 | AliasName, |
| 174 | dyn_cast<ObjcInterfaceDecl>(CDecl)); |
| 175 | |
| 176 | // Chain & install the interface decl into the identifier. |
| 177 | AliasDecl->setNext(AliasName->getFETokenInfo<ScopedDecl>()); |
| 178 | AliasName->setFETokenInfo(AliasDecl); |
| 179 | return AliasDecl; |
| 180 | } |
| 181 | |
| 182 | Sema::DeclTy *Sema::ActOnStartProtocolInterface( |
| 183 | SourceLocation AtProtoInterfaceLoc, |
| 184 | IdentifierInfo *ProtocolName, SourceLocation ProtocolLoc, |
| 185 | IdentifierInfo **ProtoRefNames, unsigned NumProtoRefs, |
| 186 | SourceLocation EndProtoLoc) { |
| 187 | assert(ProtocolName && "Missing protocol identifier"); |
| 188 | ObjcProtocolDecl *PDecl = ObjcProtocols[ProtocolName]; |
| 189 | if (PDecl) { |
| 190 | // Protocol already seen. Better be a forward protocol declaration |
| 191 | if (!PDecl->isForwardDecl()) |
| 192 | Diag(ProtocolLoc, diag::err_duplicate_protocol_def, |
| 193 | ProtocolName->getName()); |
| 194 | else { |
| 195 | PDecl->setForwardDecl(false); |
| 196 | PDecl->AllocReferencedProtocols(NumProtoRefs); |
| 197 | } |
| 198 | } |
| 199 | else { |
| 200 | PDecl = new ObjcProtocolDecl(AtProtoInterfaceLoc, NumProtoRefs, |
| 201 | ProtocolName); |
| 202 | ObjcProtocols[ProtocolName] = PDecl; |
| 203 | } |
| 204 | |
| 205 | if (NumProtoRefs) { |
| 206 | /// Check then save referenced protocols |
| 207 | for (unsigned int i = 0; i != NumProtoRefs; i++) { |
| 208 | ObjcProtocolDecl* RefPDecl = ObjcProtocols[ProtoRefNames[i]]; |
| 209 | if (!RefPDecl || RefPDecl->isForwardDecl()) |
| 210 | Diag(ProtocolLoc, diag::warn_undef_protocolref, |
| 211 | ProtoRefNames[i]->getName(), |
| 212 | ProtocolName->getName()); |
| 213 | PDecl->setReferencedProtocols((int)i, RefPDecl); |
| 214 | } |
| 215 | PDecl->setLocEnd(EndProtoLoc); |
| 216 | } |
| 217 | return PDecl; |
| 218 | } |
| 219 | |
| 220 | /// FindProtocolDeclaration - This routine looks up protocols and |
| 221 | /// issuer error if they are not declared. It returns list of protocol |
| 222 | /// declarations in its 'Protocols' argument. |
| 223 | void |
| 224 | Sema::FindProtocolDeclaration(SourceLocation TypeLoc, |
| 225 | IdentifierInfo **ProtocolId, |
| 226 | unsigned NumProtocols, |
| 227 | llvm::SmallVector<DeclTy *,8> &Protocols) { |
| 228 | for (unsigned i = 0; i != NumProtocols; ++i) { |
| 229 | ObjcProtocolDecl *PDecl = ObjcProtocols[ProtocolId[i]]; |
| 230 | if (!PDecl) |
| 231 | Diag(TypeLoc, diag::err_undeclared_protocol, |
| 232 | ProtocolId[i]->getName()); |
| 233 | else |
| 234 | Protocols.push_back(PDecl); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | /// ActOnForwardProtocolDeclaration - |
| 239 | Action::DeclTy * |
| 240 | Sema::ActOnForwardProtocolDeclaration(SourceLocation AtProtocolLoc, |
| 241 | IdentifierInfo **IdentList, unsigned NumElts) { |
| 242 | llvm::SmallVector<ObjcProtocolDecl*, 32> Protocols; |
| 243 | |
| 244 | for (unsigned i = 0; i != NumElts; ++i) { |
| 245 | IdentifierInfo *P = IdentList[i]; |
| 246 | ObjcProtocolDecl *PDecl = ObjcProtocols[P]; |
| 247 | if (!PDecl) { // Not already seen? |
| 248 | // FIXME: Pass in the location of the identifier! |
| 249 | PDecl = new ObjcProtocolDecl(AtProtocolLoc, 0, P, true); |
| 250 | ObjcProtocols[P] = PDecl; |
| 251 | } |
| 252 | |
| 253 | Protocols.push_back(PDecl); |
| 254 | } |
| 255 | return new ObjcForwardProtocolDecl(AtProtocolLoc, |
| 256 | &Protocols[0], Protocols.size()); |
| 257 | } |
| 258 | |
| 259 | Sema::DeclTy *Sema::ActOnStartCategoryInterface( |
| 260 | SourceLocation AtInterfaceLoc, |
| 261 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 262 | IdentifierInfo *CategoryName, SourceLocation CategoryLoc, |
| 263 | IdentifierInfo **ProtoRefNames, unsigned NumProtoRefs, |
| 264 | SourceLocation EndProtoLoc) { |
| 265 | ObjcInterfaceDecl *IDecl = getObjCInterfaceDecl(ClassName); |
| 266 | |
| 267 | /// Check that class of this category is already completely declared. |
| 268 | if (!IDecl || IDecl->isForwardDecl()) { |
| 269 | Diag(ClassLoc, diag::err_undef_interface, ClassName->getName()); |
| 270 | return 0; |
| 271 | } |
| 272 | ObjcCategoryDecl *CDecl = new ObjcCategoryDecl(AtInterfaceLoc, NumProtoRefs, |
| 273 | CategoryName); |
| 274 | CDecl->setClassInterface(IDecl); |
| 275 | /// Check for duplicate interface declaration for this category |
| 276 | ObjcCategoryDecl *CDeclChain; |
| 277 | for (CDeclChain = IDecl->getCategoryList(); CDeclChain; |
| 278 | CDeclChain = CDeclChain->getNextClassCategory()) { |
| 279 | if (CDeclChain->getIdentifier() == CategoryName) { |
| 280 | Diag(CategoryLoc, diag::err_dup_category_def, ClassName->getName(), |
| 281 | CategoryName->getName()); |
| 282 | break; |
| 283 | } |
| 284 | } |
| 285 | if (!CDeclChain) |
| 286 | CDecl->insertNextClassCategory(); |
| 287 | |
| 288 | if (NumProtoRefs) { |
| 289 | /// Check then save referenced protocols |
| 290 | for (unsigned int i = 0; i != NumProtoRefs; i++) { |
| 291 | ObjcProtocolDecl* RefPDecl = ObjcProtocols[ProtoRefNames[i]]; |
| 292 | if (!RefPDecl || RefPDecl->isForwardDecl()) { |
| 293 | Diag(CategoryLoc, diag::warn_undef_protocolref, |
| 294 | ProtoRefNames[i]->getName(), |
| 295 | CategoryName->getName()); |
| 296 | } |
| 297 | CDecl->setCatReferencedProtocols((int)i, RefPDecl); |
| 298 | } |
| 299 | CDecl->setLocEnd(EndProtoLoc); |
| 300 | } |
| 301 | return CDecl; |
| 302 | } |
| 303 | |
| 304 | /// ActOnStartCategoryImplementation - Perform semantic checks on the |
| 305 | /// category implementation declaration and build an ObjcCategoryImplDecl |
| 306 | /// object. |
| 307 | Sema::DeclTy *Sema::ActOnStartCategoryImplementation( |
| 308 | SourceLocation AtCatImplLoc, |
| 309 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 310 | IdentifierInfo *CatName, SourceLocation CatLoc) { |
| 311 | ObjcInterfaceDecl *IDecl = getObjCInterfaceDecl(ClassName); |
| 312 | ObjcCategoryImplDecl *CDecl = new ObjcCategoryImplDecl(AtCatImplLoc, |
| 313 | CatName, IDecl); |
| 314 | /// Check that class of this category is already completely declared. |
| 315 | if (!IDecl || IDecl->isForwardDecl()) |
| 316 | Diag(ClassLoc, diag::err_undef_interface, ClassName->getName()); |
| 317 | |
| 318 | /// TODO: Check that CatName, category name, is not used in another |
| 319 | // implementation. |
| 320 | return CDecl; |
| 321 | } |
| 322 | |
| 323 | Sema::DeclTy *Sema::ActOnStartClassImplementation( |
| 324 | SourceLocation AtClassImplLoc, |
| 325 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 326 | IdentifierInfo *SuperClassname, |
| 327 | SourceLocation SuperClassLoc) { |
| 328 | ObjcInterfaceDecl* IDecl = 0; |
| 329 | // Check for another declaration kind with the same name. |
| 330 | ScopedDecl *PrevDecl = LookupInterfaceDecl(ClassName); |
| 331 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 332 | Diag(ClassLoc, diag::err_redefinition_different_kind, |
| 333 | ClassName->getName()); |
| 334 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 335 | } |
| 336 | else { |
| 337 | // Is there an interface declaration of this class; if not, warn! |
| 338 | IDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 339 | if (!IDecl) |
| 340 | Diag(ClassLoc, diag::warn_undef_interface, ClassName->getName()); |
| 341 | } |
| 342 | |
| 343 | // Check that super class name is valid class name |
| 344 | ObjcInterfaceDecl* SDecl = 0; |
| 345 | if (SuperClassname) { |
| 346 | // Check if a different kind of symbol declared in this scope. |
| 347 | PrevDecl = LookupInterfaceDecl(SuperClassname); |
| 348 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 349 | Diag(SuperClassLoc, diag::err_redefinition_different_kind, |
| 350 | SuperClassname->getName()); |
| 351 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 352 | } |
| 353 | else { |
| 354 | SDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 355 | if (!SDecl) |
| 356 | Diag(SuperClassLoc, diag::err_undef_superclass, |
| 357 | SuperClassname->getName(), ClassName->getName()); |
| 358 | else if (IDecl && IDecl->getSuperClass() != SDecl) { |
| 359 | // This implementation and its interface do not have the same |
| 360 | // super class. |
| 361 | Diag(SuperClassLoc, diag::err_conflicting_super_class, |
| 362 | SDecl->getName()); |
| 363 | Diag(SDecl->getLocation(), diag::err_previous_definition); |
| 364 | } |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | if (!IDecl) { |
| 369 | // Legacy case of @implementation with no corresponding @interface. |
| 370 | // Build, chain & install the interface decl into the identifier. |
| 371 | IDecl = new ObjcInterfaceDecl(AtClassImplLoc, 0, ClassName, |
| 372 | false, true); |
| 373 | IDecl->setNext(ClassName->getFETokenInfo<ScopedDecl>()); |
| 374 | ClassName->setFETokenInfo(IDecl); |
| 375 | IDecl->setSuperClass(SDecl); |
| 376 | IDecl->setLocEnd(ClassLoc); |
| 377 | |
| 378 | // Remember that this needs to be removed when the scope is popped. |
| 379 | TUScope->AddDecl(IDecl); |
| 380 | } |
| 381 | |
| 382 | ObjcImplementationDecl* IMPDecl = |
| 383 | new ObjcImplementationDecl(AtClassImplLoc, ClassName, IDecl, SDecl); |
| 384 | |
| 385 | // Check that there is no duplicate implementation of this class. |
| 386 | if (ObjcImplementations[ClassName]) |
| 387 | Diag(ClassLoc, diag::err_dup_implementation_class, ClassName->getName()); |
| 388 | else // add it to the list. |
| 389 | ObjcImplementations[ClassName] = IMPDecl; |
| 390 | return IMPDecl; |
| 391 | } |
| 392 | |
| 393 | void Sema::CheckImplementationIvars(ObjcImplementationDecl *ImpDecl, |
| 394 | ObjcIvarDecl **ivars, unsigned numIvars, |
| 395 | SourceLocation RBrace) { |
| 396 | assert(ImpDecl && "missing implementation decl"); |
| 397 | ObjcInterfaceDecl* IDecl = getObjCInterfaceDecl(ImpDecl->getIdentifier()); |
| 398 | if (!IDecl) |
| 399 | return; |
| 400 | /// Check case of non-existing @interface decl. |
| 401 | /// (legacy objective-c @implementation decl without an @interface decl). |
| 402 | /// Add implementations's ivar to the synthesize class's ivar list. |
| 403 | if (IDecl->ImplicitInterfaceDecl()) { |
| 404 | IDecl->addInstanceVariablesToClass(ivars, numIvars, RBrace); |
| 405 | return; |
| 406 | } |
| 407 | // If implementation has empty ivar list, just return. |
| 408 | if (numIvars == 0) |
| 409 | return; |
| 410 | |
| 411 | assert(ivars && "missing @implementation ivars"); |
| 412 | |
| 413 | // Check interface's Ivar list against those in the implementation. |
| 414 | // names and types must match. |
| 415 | // |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 416 | unsigned j = 0; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 417 | ObjcInterfaceDecl::ivar_iterator |
| 418 | IVI = IDecl->ivar_begin(), IVE = IDecl->ivar_end(); |
| 419 | for (; numIvars > 0 && IVI != IVE; ++IVI) { |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 420 | ObjcIvarDecl* ImplIvar = ivars[j++]; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 421 | ObjcIvarDecl* ClsIvar = *IVI; |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 422 | assert (ImplIvar && "missing implementation ivar"); |
| 423 | assert (ClsIvar && "missing class ivar"); |
| 424 | if (ImplIvar->getCanonicalType() != ClsIvar->getCanonicalType()) { |
| 425 | Diag(ImplIvar->getLocation(), diag::err_conflicting_ivar_type, |
| 426 | ImplIvar->getIdentifier()->getName()); |
| 427 | Diag(ClsIvar->getLocation(), diag::err_previous_definition, |
| 428 | ClsIvar->getIdentifier()->getName()); |
| 429 | } |
| 430 | // TODO: Two mismatched (unequal width) Ivar bitfields should be diagnosed |
| 431 | // as error. |
| 432 | else if (ImplIvar->getIdentifier() != ClsIvar->getIdentifier()) { |
| 433 | Diag(ImplIvar->getLocation(), diag::err_conflicting_ivar_name, |
| 434 | ImplIvar->getIdentifier()->getName()); |
| 435 | Diag(ClsIvar->getLocation(), diag::err_previous_definition, |
| 436 | ClsIvar->getIdentifier()->getName()); |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 437 | return; |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 438 | } |
| 439 | --numIvars; |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 440 | } |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 441 | |
| 442 | if (numIvars > 0) |
Chris Lattner | 0e39105 | 2007-12-12 18:19:52 +0000 | [diff] [blame^] | 443 | Diag(ivars[j]->getLocation(), diag::err_inconsistant_ivar_count); |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 444 | else if (IVI != IVE) |
Chris Lattner | 0e39105 | 2007-12-12 18:19:52 +0000 | [diff] [blame^] | 445 | Diag((*IVI)->getLocation(), diag::err_inconsistant_ivar_count); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | /// CheckProtocolMethodDefs - This routine checks unimpletented methods |
| 449 | /// Declared in protocol, and those referenced by it. |
| 450 | void Sema::CheckProtocolMethodDefs(ObjcProtocolDecl *PDecl, |
| 451 | bool& IncompleteImpl, |
| 452 | const llvm::DenseSet<Selector> &InsMap, |
| 453 | const llvm::DenseSet<Selector> &ClsMap) { |
| 454 | // check unimplemented instance methods. |
| 455 | ObjcMethodDecl** methods = PDecl->getInstanceMethods(); |
| 456 | for (int j = 0; j < PDecl->getNumInstanceMethods(); j++) { |
| 457 | if (!InsMap.count(methods[j]->getSelector()) && |
| 458 | methods[j]->getImplementationControl() != ObjcMethodDecl::Optional) { |
| 459 | Diag(methods[j]->getLocation(), diag::warn_undef_method_impl, |
| 460 | methods[j]->getSelector().getName()); |
| 461 | IncompleteImpl = true; |
| 462 | } |
| 463 | } |
| 464 | // check unimplemented class methods |
| 465 | methods = PDecl->getClassMethods(); |
| 466 | for (int j = 0; j < PDecl->getNumClassMethods(); j++) |
| 467 | if (!ClsMap.count(methods[j]->getSelector()) && |
| 468 | methods[j]->getImplementationControl() != ObjcMethodDecl::Optional) { |
| 469 | Diag(methods[j]->getLocation(), diag::warn_undef_method_impl, |
| 470 | methods[j]->getSelector().getName()); |
| 471 | IncompleteImpl = true; |
| 472 | } |
| 473 | |
| 474 | // Check on this protocols's referenced protocols, recursively |
| 475 | ObjcProtocolDecl** RefPDecl = PDecl->getReferencedProtocols(); |
| 476 | for (int i = 0; i < PDecl->getNumReferencedProtocols(); i++) |
| 477 | CheckProtocolMethodDefs(RefPDecl[i], IncompleteImpl, InsMap, ClsMap); |
| 478 | } |
| 479 | |
| 480 | void Sema::ImplMethodsVsClassMethods(ObjcImplementationDecl* IMPDecl, |
| 481 | ObjcInterfaceDecl* IDecl) { |
| 482 | llvm::DenseSet<Selector> InsMap; |
| 483 | // Check and see if instance methods in class interface have been |
| 484 | // implemented in the implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 485 | for (ObjcImplementationDecl::instmeth_iterator I = IMPDecl->instmeth_begin(), |
| 486 | E = IMPDecl->instmeth_end(); I != E; ++I) |
| 487 | InsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 488 | |
| 489 | bool IncompleteImpl = false; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 490 | for (ObjcInterfaceDecl::instmeth_iterator I = IDecl->instmeth_begin(), |
| 491 | E = IDecl->instmeth_end(); I != E; ++I) |
| 492 | if (!InsMap.count((*I)->getSelector())) { |
| 493 | Diag((*I)->getLocation(), diag::warn_undef_method_impl, |
| 494 | (*I)->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 495 | IncompleteImpl = true; |
| 496 | } |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 497 | |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 498 | llvm::DenseSet<Selector> ClsMap; |
| 499 | // Check and see if class methods in class interface have been |
| 500 | // implemented in the implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 501 | for (ObjcImplementationDecl::classmeth_iterator I =IMPDecl->classmeth_begin(), |
| 502 | E = IMPDecl->classmeth_end(); I != E; ++I) |
| 503 | ClsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 504 | |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 505 | for (ObjcInterfaceDecl::classmeth_iterator I = IDecl->classmeth_begin(), |
| 506 | E = IDecl->classmeth_end(); I != E; ++I) |
| 507 | if (!ClsMap.count((*I)->getSelector())) { |
| 508 | Diag((*I)->getLocation(), diag::warn_undef_method_impl, |
| 509 | (*I)->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 510 | IncompleteImpl = true; |
| 511 | } |
| 512 | |
| 513 | // Check the protocol list for unimplemented methods in the @implementation |
| 514 | // class. |
| 515 | ObjcProtocolDecl** protocols = IDecl->getReferencedProtocols(); |
| 516 | for (int i = 0; i < IDecl->getNumIntfRefProtocols(); i++) |
| 517 | CheckProtocolMethodDefs(protocols[i], IncompleteImpl, InsMap, ClsMap); |
| 518 | |
| 519 | if (IncompleteImpl) |
| 520 | Diag(IMPDecl->getLocation(), diag::warn_incomplete_impl_class, |
| 521 | IMPDecl->getName()); |
| 522 | } |
| 523 | |
| 524 | /// ImplCategoryMethodsVsIntfMethods - Checks that methods declared in the |
| 525 | /// category interface is implemented in the category @implementation. |
| 526 | void Sema::ImplCategoryMethodsVsIntfMethods(ObjcCategoryImplDecl *CatImplDecl, |
| 527 | ObjcCategoryDecl *CatClassDecl) { |
| 528 | llvm::DenseSet<Selector> InsMap; |
| 529 | // Check and see if instance methods in category interface have been |
| 530 | // implemented in its implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 531 | for (ObjcCategoryImplDecl::instmeth_iterator I =CatImplDecl->instmeth_begin(), |
| 532 | E = CatImplDecl->instmeth_end(); I != E; ++I) |
| 533 | InsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 534 | |
| 535 | bool IncompleteImpl = false; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 536 | ObjcMethodDecl *const* methods = CatClassDecl->getInstanceMethods(); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 537 | for (int j = 0; j < CatClassDecl->getNumInstanceMethods(); j++) |
| 538 | if (!InsMap.count(methods[j]->getSelector())) { |
| 539 | Diag(methods[j]->getLocation(), diag::warn_undef_method_impl, |
| 540 | methods[j]->getSelector().getName()); |
| 541 | IncompleteImpl = true; |
| 542 | } |
| 543 | llvm::DenseSet<Selector> ClsMap; |
| 544 | // Check and see if class methods in category interface have been |
| 545 | // implemented in its implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 546 | for (ObjcCategoryImplDecl::classmeth_iterator |
| 547 | I = CatImplDecl->classmeth_begin(), E = CatImplDecl->classmeth_end(); |
| 548 | I != E; ++I) |
| 549 | ClsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 550 | |
| 551 | methods = CatClassDecl->getClassMethods(); |
| 552 | for (int j = 0; j < CatClassDecl->getNumClassMethods(); j++) |
| 553 | if (!ClsMap.count(methods[j]->getSelector())) { |
| 554 | Diag(methods[j]->getLocation(), diag::warn_undef_method_impl, |
| 555 | methods[j]->getSelector().getName()); |
| 556 | IncompleteImpl = true; |
| 557 | } |
| 558 | |
| 559 | // Check the protocol list for unimplemented methods in the @implementation |
| 560 | // class. |
| 561 | ObjcProtocolDecl** protocols = CatClassDecl->getReferencedProtocols(); |
| 562 | for (int i = 0; i < CatClassDecl->getNumReferencedProtocols(); i++) { |
| 563 | ObjcProtocolDecl* PDecl = protocols[i]; |
| 564 | CheckProtocolMethodDefs(PDecl, IncompleteImpl, InsMap, ClsMap); |
| 565 | } |
| 566 | if (IncompleteImpl) |
| 567 | Diag(CatImplDecl->getLocation(), diag::warn_incomplete_impl_category, |
| 568 | CatClassDecl->getName()); |
| 569 | } |
| 570 | |
| 571 | /// ActOnForwardClassDeclaration - |
| 572 | Action::DeclTy * |
| 573 | Sema::ActOnForwardClassDeclaration(SourceLocation AtClassLoc, |
| 574 | IdentifierInfo **IdentList, unsigned NumElts) |
| 575 | { |
| 576 | llvm::SmallVector<ObjcInterfaceDecl*, 32> Interfaces; |
| 577 | |
| 578 | for (unsigned i = 0; i != NumElts; ++i) { |
| 579 | // Check for another declaration kind with the same name. |
| 580 | ScopedDecl *PrevDecl = LookupInterfaceDecl(IdentList[i]); |
| 581 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 582 | Diag(AtClassLoc, diag::err_redefinition_different_kind, |
| 583 | IdentList[i]->getName()); |
| 584 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 585 | } |
| 586 | ObjcInterfaceDecl *IDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 587 | if (!IDecl) { // Not already seen? Make a forward decl. |
| 588 | IDecl = new ObjcInterfaceDecl(AtClassLoc, 0, IdentList[i], true); |
| 589 | // Chain & install the interface decl into the identifier. |
| 590 | IDecl->setNext(IdentList[i]->getFETokenInfo<ScopedDecl>()); |
| 591 | IdentList[i]->setFETokenInfo(IDecl); |
| 592 | |
| 593 | // Remember that this needs to be removed when the scope is popped. |
| 594 | TUScope->AddDecl(IDecl); |
| 595 | } |
| 596 | |
| 597 | Interfaces.push_back(IDecl); |
| 598 | } |
| 599 | |
| 600 | return new ObjcClassDecl(AtClassLoc, &Interfaces[0], Interfaces.size()); |
| 601 | } |
| 602 | |
| 603 | |
| 604 | /// MatchTwoMethodDeclarations - Checks that two methods have matching type and |
| 605 | /// returns true, or false, accordingly. |
| 606 | /// TODO: Handle protocol list; such as id<p1,p2> in type comparisons |
| 607 | bool Sema::MatchTwoMethodDeclarations(const ObjcMethodDecl *Method, |
| 608 | const ObjcMethodDecl *PrevMethod) { |
| 609 | if (Method->getResultType().getCanonicalType() != |
| 610 | PrevMethod->getResultType().getCanonicalType()) |
| 611 | return false; |
| 612 | for (int i = 0; i < Method->getNumParams(); i++) { |
| 613 | ParmVarDecl *ParamDecl = Method->getParamDecl(i); |
| 614 | ParmVarDecl *PrevParamDecl = PrevMethod->getParamDecl(i); |
| 615 | if (ParamDecl->getCanonicalType() != PrevParamDecl->getCanonicalType()) |
| 616 | return false; |
| 617 | } |
| 618 | return true; |
| 619 | } |
| 620 | |
| 621 | void Sema::AddInstanceMethodToGlobalPool(ObjcMethodDecl *Method) { |
| 622 | ObjcMethodList &FirstMethod = InstanceMethodPool[Method->getSelector()]; |
| 623 | if (!FirstMethod.Method) { |
| 624 | // Haven't seen a method with this selector name yet - add it. |
| 625 | FirstMethod.Method = Method; |
| 626 | FirstMethod.Next = 0; |
| 627 | } else { |
| 628 | // We've seen a method with this name, now check the type signature(s). |
| 629 | bool match = MatchTwoMethodDeclarations(Method, FirstMethod.Method); |
| 630 | |
| 631 | for (ObjcMethodList *Next = FirstMethod.Next; !match && Next; |
| 632 | Next = Next->Next) |
| 633 | match = MatchTwoMethodDeclarations(Method, Next->Method); |
| 634 | |
| 635 | if (!match) { |
| 636 | // We have a new signature for an existing method - add it. |
| 637 | // This is extremely rare. Only 1% of Cocoa selectors are "overloaded". |
| 638 | struct ObjcMethodList *OMI = new ObjcMethodList(Method, FirstMethod.Next); |
| 639 | FirstMethod.Next = OMI; |
| 640 | } |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | void Sema::AddFactoryMethodToGlobalPool(ObjcMethodDecl *Method) { |
| 645 | ObjcMethodList &FirstMethod = FactoryMethodPool[Method->getSelector()]; |
| 646 | if (!FirstMethod.Method) { |
| 647 | // Haven't seen a method with this selector name yet - add it. |
| 648 | FirstMethod.Method = Method; |
| 649 | FirstMethod.Next = 0; |
| 650 | } else { |
| 651 | // We've seen a method with this name, now check the type signature(s). |
| 652 | bool match = MatchTwoMethodDeclarations(Method, FirstMethod.Method); |
| 653 | |
| 654 | for (ObjcMethodList *Next = FirstMethod.Next; !match && Next; |
| 655 | Next = Next->Next) |
| 656 | match = MatchTwoMethodDeclarations(Method, Next->Method); |
| 657 | |
| 658 | if (!match) { |
| 659 | // We have a new signature for an existing method - add it. |
| 660 | // This is extremely rare. Only 1% of Cocoa selectors are "overloaded". |
| 661 | struct ObjcMethodList *OMI = new ObjcMethodList(Method, FirstMethod.Next); |
| 662 | FirstMethod.Next = OMI; |
| 663 | } |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | void Sema::ActOnAtEnd(SourceLocation AtEndLoc, DeclTy *classDecl, |
| 668 | DeclTy **allMethods, unsigned allNum, |
| 669 | DeclTy **allProperties, unsigned pNum) { |
| 670 | Decl *ClassDecl = static_cast<Decl *>(classDecl); |
| 671 | |
| 672 | // FIXME: If we don't have a ClassDecl, we have an error. I (snaroff) would |
| 673 | // prefer we always pass in a decl. If the decl has an error, isInvalidDecl() |
| 674 | // should be true. |
| 675 | if (!ClassDecl) |
| 676 | return; |
| 677 | |
| 678 | llvm::SmallVector<ObjcMethodDecl*, 32> insMethods; |
| 679 | llvm::SmallVector<ObjcMethodDecl*, 16> clsMethods; |
| 680 | |
| 681 | llvm::DenseMap<Selector, const ObjcMethodDecl*> InsMap; |
| 682 | llvm::DenseMap<Selector, const ObjcMethodDecl*> ClsMap; |
| 683 | |
| 684 | bool isInterfaceDeclKind = |
| 685 | (isa<ObjcInterfaceDecl>(ClassDecl) || isa<ObjcCategoryDecl>(ClassDecl) |
| 686 | || isa<ObjcProtocolDecl>(ClassDecl)); |
| 687 | bool checkIdenticalMethods = isa<ObjcImplementationDecl>(ClassDecl); |
| 688 | |
| 689 | // TODO: property declaration in category and protocols. |
| 690 | if (pNum != 0 && isa<ObjcInterfaceDecl>(ClassDecl)) { |
| 691 | ObjcPropertyDecl **properties = new ObjcPropertyDecl*[pNum]; |
| 692 | memcpy(properties, allProperties, pNum*sizeof(ObjcPropertyDecl*)); |
| 693 | dyn_cast<ObjcInterfaceDecl>(ClassDecl)->setPropertyDecls(properties); |
| 694 | dyn_cast<ObjcInterfaceDecl>(ClassDecl)->setNumPropertyDecl(pNum); |
| 695 | } |
| 696 | |
| 697 | for (unsigned i = 0; i < allNum; i++ ) { |
| 698 | ObjcMethodDecl *Method = |
| 699 | cast_or_null<ObjcMethodDecl>(static_cast<Decl*>(allMethods[i])); |
| 700 | |
| 701 | if (!Method) continue; // Already issued a diagnostic. |
| 702 | if (Method->isInstance()) { |
| 703 | /// Check for instance method of the same name with incompatible types |
| 704 | const ObjcMethodDecl *&PrevMethod = InsMap[Method->getSelector()]; |
| 705 | bool match = PrevMethod ? MatchTwoMethodDeclarations(Method, PrevMethod) |
| 706 | : false; |
| 707 | if (isInterfaceDeclKind && PrevMethod && !match |
| 708 | || checkIdenticalMethods && match) { |
| 709 | Diag(Method->getLocation(), diag::error_duplicate_method_decl, |
| 710 | Method->getSelector().getName()); |
| 711 | Diag(PrevMethod->getLocation(), diag::err_previous_declaration); |
| 712 | } else { |
| 713 | insMethods.push_back(Method); |
| 714 | InsMap[Method->getSelector()] = Method; |
| 715 | /// The following allows us to typecheck messages to "id". |
| 716 | AddInstanceMethodToGlobalPool(Method); |
| 717 | } |
| 718 | } |
| 719 | else { |
| 720 | /// Check for class method of the same name with incompatible types |
| 721 | const ObjcMethodDecl *&PrevMethod = ClsMap[Method->getSelector()]; |
| 722 | bool match = PrevMethod ? MatchTwoMethodDeclarations(Method, PrevMethod) |
| 723 | : false; |
| 724 | if (isInterfaceDeclKind && PrevMethod && !match |
| 725 | || checkIdenticalMethods && match) { |
| 726 | Diag(Method->getLocation(), diag::error_duplicate_method_decl, |
| 727 | Method->getSelector().getName()); |
| 728 | Diag(PrevMethod->getLocation(), diag::err_previous_declaration); |
| 729 | } else { |
| 730 | clsMethods.push_back(Method); |
| 731 | ClsMap[Method->getSelector()] = Method; |
| 732 | /// The following allows us to typecheck messages to "id". |
| 733 | AddInstanceMethodToGlobalPool(Method); |
| 734 | } |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | if (ObjcInterfaceDecl *I = dyn_cast<ObjcInterfaceDecl>(ClassDecl)) { |
| 739 | I->addMethods(&insMethods[0], insMethods.size(), |
| 740 | &clsMethods[0], clsMethods.size(), AtEndLoc); |
| 741 | } else if (ObjcProtocolDecl *P = dyn_cast<ObjcProtocolDecl>(ClassDecl)) { |
| 742 | P->addMethods(&insMethods[0], insMethods.size(), |
| 743 | &clsMethods[0], clsMethods.size(), AtEndLoc); |
| 744 | } |
| 745 | else if (ObjcCategoryDecl *C = dyn_cast<ObjcCategoryDecl>(ClassDecl)) { |
| 746 | C->addMethods(&insMethods[0], insMethods.size(), |
| 747 | &clsMethods[0], clsMethods.size(), AtEndLoc); |
| 748 | } |
| 749 | else if (ObjcImplementationDecl *IC = |
| 750 | dyn_cast<ObjcImplementationDecl>(ClassDecl)) { |
| 751 | IC->setLocEnd(AtEndLoc); |
| 752 | if (ObjcInterfaceDecl* IDecl = getObjCInterfaceDecl(IC->getIdentifier())) |
| 753 | ImplMethodsVsClassMethods(IC, IDecl); |
| 754 | } else { |
| 755 | ObjcCategoryImplDecl* CatImplClass = cast<ObjcCategoryImplDecl>(ClassDecl); |
| 756 | CatImplClass->setLocEnd(AtEndLoc); |
| 757 | ObjcInterfaceDecl* IDecl = CatImplClass->getClassInterface(); |
| 758 | // Find category interface decl and then check that all methods declared |
| 759 | // in this interface is implemented in the category @implementation. |
| 760 | if (IDecl) { |
| 761 | for (ObjcCategoryDecl *Categories = IDecl->getCategoryList(); |
| 762 | Categories; Categories = Categories->getNextClassCategory()) { |
| 763 | if (Categories->getIdentifier() == CatImplClass->getIdentifier()) { |
| 764 | ImplCategoryMethodsVsIntfMethods(CatImplClass, Categories); |
| 765 | break; |
| 766 | } |
| 767 | } |
| 768 | } |
| 769 | } |
| 770 | } |
| 771 | |
| 772 | |
| 773 | /// CvtQTToAstBitMask - utility routine to produce an AST bitmask for |
| 774 | /// objective-c's type qualifier from the parser version of the same info. |
| 775 | static Decl::ObjcDeclQualifier |
| 776 | CvtQTToAstBitMask(ObjcDeclSpec::ObjcDeclQualifier PQTVal) { |
| 777 | Decl::ObjcDeclQualifier ret = Decl::OBJC_TQ_None; |
| 778 | if (PQTVal & ObjcDeclSpec::DQ_In) |
| 779 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_In); |
| 780 | if (PQTVal & ObjcDeclSpec::DQ_Inout) |
| 781 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Inout); |
| 782 | if (PQTVal & ObjcDeclSpec::DQ_Out) |
| 783 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Out); |
| 784 | if (PQTVal & ObjcDeclSpec::DQ_Bycopy) |
| 785 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Bycopy); |
| 786 | if (PQTVal & ObjcDeclSpec::DQ_Byref) |
| 787 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Byref); |
| 788 | if (PQTVal & ObjcDeclSpec::DQ_Oneway) |
| 789 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Oneway); |
| 790 | |
| 791 | return ret; |
| 792 | } |
| 793 | |
| 794 | Sema::DeclTy *Sema::ActOnMethodDeclaration( |
| 795 | SourceLocation MethodLoc, SourceLocation EndLoc, |
| 796 | tok::TokenKind MethodType, DeclTy *ClassDecl, |
| 797 | ObjcDeclSpec &ReturnQT, TypeTy *ReturnType, |
| 798 | Selector Sel, |
| 799 | // optional arguments. The number of types/arguments is obtained |
| 800 | // from the Sel.getNumArgs(). |
| 801 | ObjcDeclSpec *ArgQT, TypeTy **ArgTypes, IdentifierInfo **ArgNames, |
| 802 | AttributeList *AttrList, tok::ObjCKeywordKind MethodDeclKind, |
| 803 | bool isVariadic) { |
| 804 | llvm::SmallVector<ParmVarDecl*, 16> Params; |
| 805 | |
| 806 | for (unsigned i = 0; i < Sel.getNumArgs(); i++) { |
| 807 | // FIXME: arg->AttrList must be stored too! |
| 808 | QualType argType; |
| 809 | |
| 810 | if (ArgTypes[i]) |
| 811 | argType = QualType::getFromOpaquePtr(ArgTypes[i]); |
| 812 | else |
| 813 | argType = Context.getObjcIdType(); |
| 814 | ParmVarDecl* Param = new ParmVarDecl(SourceLocation(/*FIXME*/), ArgNames[i], |
| 815 | argType, VarDecl::None, 0); |
| 816 | Param->setObjcDeclQualifier( |
| 817 | CvtQTToAstBitMask(ArgQT[i].getObjcDeclQualifier())); |
| 818 | Params.push_back(Param); |
| 819 | } |
| 820 | QualType resultDeclType; |
| 821 | |
| 822 | if (ReturnType) |
| 823 | resultDeclType = QualType::getFromOpaquePtr(ReturnType); |
| 824 | else // get the type for "id". |
| 825 | resultDeclType = Context.getObjcIdType(); |
| 826 | |
| 827 | Decl *CDecl = static_cast<Decl*>(ClassDecl); |
| 828 | ObjcMethodDecl* ObjcMethod = new ObjcMethodDecl(MethodLoc, EndLoc, Sel, |
| 829 | resultDeclType, |
| 830 | CDecl, |
| 831 | 0, -1, AttrList, |
| 832 | MethodType == tok::minus, isVariadic, |
| 833 | MethodDeclKind == tok::objc_optional ? |
| 834 | ObjcMethodDecl::Optional : |
| 835 | ObjcMethodDecl::Required); |
| 836 | ObjcMethod->setMethodParams(&Params[0], Sel.getNumArgs()); |
| 837 | ObjcMethod->setObjcDeclQualifier( |
| 838 | CvtQTToAstBitMask(ReturnQT.getObjcDeclQualifier())); |
| 839 | const ObjcMethodDecl *PrevMethod = 0; |
| 840 | |
| 841 | // For implementations (which can be very "coarse grain"), we add the |
| 842 | // method now. This allows the AST to implement lookup methods that work |
| 843 | // incrementally (without waiting until we parse the @end). It also allows |
| 844 | // us to flag multiple declaration errors as they occur. |
| 845 | if (ObjcImplementationDecl *ImpDecl = |
| 846 | dyn_cast<ObjcImplementationDecl>(CDecl)) { |
| 847 | if (MethodType == tok::minus) { |
| 848 | PrevMethod = ImpDecl->lookupInstanceMethod(Sel); |
| 849 | ImpDecl->addInstanceMethod(ObjcMethod); |
| 850 | } else { |
| 851 | PrevMethod = ImpDecl->lookupClassMethod(Sel); |
| 852 | ImpDecl->addClassMethod(ObjcMethod); |
| 853 | } |
| 854 | } |
| 855 | else if (ObjcCategoryImplDecl *CatImpDecl = |
| 856 | dyn_cast<ObjcCategoryImplDecl>(CDecl)) { |
| 857 | if (MethodType == tok::minus) { |
| 858 | PrevMethod = CatImpDecl->lookupInstanceMethod(Sel); |
| 859 | CatImpDecl->addInstanceMethod(ObjcMethod); |
| 860 | } else { |
| 861 | PrevMethod = CatImpDecl->lookupClassMethod(Sel); |
| 862 | CatImpDecl->addClassMethod(ObjcMethod); |
| 863 | } |
| 864 | } |
| 865 | if (PrevMethod) { |
| 866 | // You can never have two method definitions with the same name. |
| 867 | Diag(ObjcMethod->getLocation(), diag::error_duplicate_method_decl, |
| 868 | ObjcMethod->getSelector().getName()); |
| 869 | Diag(PrevMethod->getLocation(), diag::err_previous_declaration); |
| 870 | } |
| 871 | return ObjcMethod; |
| 872 | } |
| 873 | |
| 874 | Sema::DeclTy *Sema::ActOnAddObjcProperties(SourceLocation AtLoc, |
| 875 | DeclTy **allProperties, unsigned NumProperties, ObjcDeclSpec &DS) { |
| 876 | ObjcPropertyDecl *PDecl = new ObjcPropertyDecl(AtLoc); |
| 877 | |
| 878 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_readonly) |
| 879 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_readonly); |
| 880 | |
| 881 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_getter) { |
| 882 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_getter); |
| 883 | PDecl->setGetterName(DS.getGetterName()); |
| 884 | } |
| 885 | |
| 886 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_setter) { |
| 887 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_setter); |
| 888 | PDecl->setSetterName(DS.getSetterName()); |
| 889 | } |
| 890 | |
| 891 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_assign) |
| 892 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_assign); |
| 893 | |
| 894 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_readwrite) |
| 895 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_readwrite); |
| 896 | |
| 897 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_retain) |
| 898 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_retain); |
| 899 | |
| 900 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_copy) |
| 901 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_copy); |
| 902 | |
| 903 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_nonatomic) |
| 904 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_nonatomic); |
| 905 | |
| 906 | PDecl->setNumPropertyDecls(NumProperties); |
| 907 | if (NumProperties != 0) { |
| 908 | ObjcIvarDecl **properties = new ObjcIvarDecl*[NumProperties]; |
| 909 | memcpy(properties, allProperties, NumProperties*sizeof(ObjcIvarDecl*)); |
| 910 | PDecl->setPropertyDecls(properties); |
| 911 | } |
| 912 | return PDecl; |
| 913 | } |
| 914 | |