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!"); |
Steve Naroff | a56f616 | 2007-12-18 01:30:32 +0000 | [diff] [blame] | 27 | |
| 28 | // Allow the rest of sema to find private method decl implementations. |
| 29 | if (MDecl->isInstance()) |
| 30 | AddInstanceMethodToGlobalPool(MDecl); |
| 31 | else |
| 32 | AddFactoryMethodToGlobalPool(MDecl); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 33 | |
| 34 | // Allow all of Sema to see that we are entering a method definition. |
| 35 | CurMethodDecl = MDecl; |
| 36 | |
| 37 | // Create Decl objects for each parameter, entrring them in the scope for |
| 38 | // binding to their use. |
| 39 | struct DeclaratorChunk::ParamInfo PI; |
| 40 | |
| 41 | // Insert the invisible arguments, self and _cmd! |
| 42 | PI.Ident = &Context.Idents.get("self"); |
| 43 | PI.IdentLoc = SourceLocation(); // synthesized vars have a null location. |
| 44 | PI.InvalidType = false; |
| 45 | if (MDecl->isInstance()) { |
| 46 | QualType selfTy = Context.getObjcInterfaceType(MDecl->getClassInterface()); |
| 47 | selfTy = Context.getPointerType(selfTy); |
| 48 | PI.TypeInfo = selfTy.getAsOpaquePtr(); |
| 49 | } else |
| 50 | PI.TypeInfo = Context.getObjcIdType().getAsOpaquePtr(); |
| 51 | CurMethodDecl->setSelfDecl(ActOnParamDeclarator(PI, FnBodyScope)); |
| 52 | |
| 53 | PI.Ident = &Context.Idents.get("_cmd"); |
| 54 | PI.TypeInfo = Context.getObjcSelType().getAsOpaquePtr(); |
| 55 | ActOnParamDeclarator(PI, FnBodyScope); |
| 56 | |
| 57 | for (int i = 0; i < MDecl->getNumParams(); i++) { |
| 58 | ParmVarDecl *PDecl = MDecl->getParamDecl(i); |
| 59 | PI.Ident = PDecl->getIdentifier(); |
| 60 | PI.IdentLoc = PDecl->getLocation(); // user vars have a real location. |
| 61 | PI.TypeInfo = PDecl->getType().getAsOpaquePtr(); |
| 62 | ActOnParamDeclarator(PI, FnBodyScope); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | Sema::DeclTy *Sema::ActOnStartClassInterface( |
| 67 | SourceLocation AtInterfaceLoc, |
| 68 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 69 | IdentifierInfo *SuperName, SourceLocation SuperLoc, |
| 70 | IdentifierInfo **ProtocolNames, unsigned NumProtocols, |
| 71 | SourceLocation EndProtoLoc, AttributeList *AttrList) { |
| 72 | assert(ClassName && "Missing class identifier"); |
| 73 | |
| 74 | // Check for another declaration kind with the same name. |
| 75 | ScopedDecl *PrevDecl = LookupInterfaceDecl(ClassName); |
| 76 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 77 | Diag(ClassLoc, diag::err_redefinition_different_kind, |
| 78 | ClassName->getName()); |
| 79 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 80 | } |
| 81 | |
| 82 | ObjcInterfaceDecl* IDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 83 | if (IDecl) { |
| 84 | // Class already seen. Is it a forward declaration? |
| 85 | if (!IDecl->isForwardDecl()) |
| 86 | Diag(AtInterfaceLoc, diag::err_duplicate_class_def, IDecl->getName()); |
| 87 | else { |
| 88 | IDecl->setLocation(AtInterfaceLoc); |
| 89 | IDecl->setForwardDecl(false); |
| 90 | IDecl->AllocIntfRefProtocols(NumProtocols); |
| 91 | } |
| 92 | } |
| 93 | else { |
| 94 | IDecl = new ObjcInterfaceDecl(AtInterfaceLoc, NumProtocols, ClassName); |
| 95 | |
| 96 | // Chain & install the interface decl into the identifier. |
| 97 | IDecl->setNext(ClassName->getFETokenInfo<ScopedDecl>()); |
| 98 | ClassName->setFETokenInfo(IDecl); |
| 99 | |
| 100 | // Remember that this needs to be removed when the scope is popped. |
| 101 | TUScope->AddDecl(IDecl); |
| 102 | } |
| 103 | |
| 104 | if (SuperName) { |
| 105 | ObjcInterfaceDecl* SuperClassEntry = 0; |
| 106 | // Check if a different kind of symbol declared in this scope. |
| 107 | PrevDecl = LookupInterfaceDecl(SuperName); |
| 108 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 109 | Diag(SuperLoc, diag::err_redefinition_different_kind, |
| 110 | SuperName->getName()); |
| 111 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 112 | } |
| 113 | else { |
| 114 | // Check that super class is previously defined |
| 115 | SuperClassEntry = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 116 | |
| 117 | if (!SuperClassEntry || SuperClassEntry->isForwardDecl()) { |
| 118 | Diag(AtInterfaceLoc, diag::err_undef_superclass, |
| 119 | SuperClassEntry ? SuperClassEntry->getName() |
| 120 | : SuperName->getName(), |
| 121 | ClassName->getName()); |
| 122 | } |
| 123 | } |
| 124 | IDecl->setSuperClass(SuperClassEntry); |
| 125 | IDecl->setLocEnd(SuperLoc); |
| 126 | } else { // we have a root class. |
| 127 | IDecl->setLocEnd(ClassLoc); |
| 128 | } |
| 129 | |
| 130 | /// Check then save referenced protocols |
| 131 | if (NumProtocols) { |
| 132 | for (unsigned int i = 0; i != NumProtocols; i++) { |
| 133 | ObjcProtocolDecl* RefPDecl = ObjcProtocols[ProtocolNames[i]]; |
| 134 | if (!RefPDecl || RefPDecl->isForwardDecl()) |
| 135 | Diag(ClassLoc, diag::warn_undef_protocolref, |
| 136 | ProtocolNames[i]->getName(), |
| 137 | ClassName->getName()); |
| 138 | IDecl->setIntfRefProtocols((int)i, RefPDecl); |
| 139 | } |
| 140 | IDecl->setLocEnd(EndProtoLoc); |
| 141 | } |
| 142 | return IDecl; |
| 143 | } |
| 144 | |
| 145 | /// ActOnCompatiblityAlias - this action is called after complete parsing of |
| 146 | /// @compaatibility_alias declaration. It sets up the alias relationships. |
| 147 | Sema::DeclTy *Sema::ActOnCompatiblityAlias( |
| 148 | SourceLocation AtCompatibilityAliasLoc, |
| 149 | IdentifierInfo *AliasName, SourceLocation AliasLocation, |
| 150 | IdentifierInfo *ClassName, SourceLocation ClassLocation) { |
| 151 | // Look for previous declaration of alias name |
| 152 | ScopedDecl *ADecl = LookupScopedDecl(AliasName, Decl::IDNS_Ordinary, |
| 153 | AliasLocation, TUScope); |
| 154 | if (ADecl) { |
| 155 | if (isa<ObjcCompatibleAliasDecl>(ADecl)) { |
| 156 | Diag(AliasLocation, diag::warn_previous_alias_decl); |
| 157 | Diag(ADecl->getLocation(), diag::warn_previous_declaration); |
| 158 | } |
| 159 | else { |
| 160 | Diag(AliasLocation, diag::err_conflicting_aliasing_type, |
| 161 | AliasName->getName()); |
| 162 | Diag(ADecl->getLocation(), diag::err_previous_declaration); |
| 163 | } |
| 164 | return 0; |
| 165 | } |
| 166 | // Check for class declaration |
| 167 | ScopedDecl *CDecl = LookupScopedDecl(ClassName, Decl::IDNS_Ordinary, |
| 168 | ClassLocation, TUScope); |
| 169 | if (!CDecl || !isa<ObjcInterfaceDecl>(CDecl)) { |
| 170 | Diag(ClassLocation, diag::warn_undef_interface, |
| 171 | ClassName->getName()); |
| 172 | if (CDecl) |
| 173 | Diag(CDecl->getLocation(), diag::warn_previous_declaration); |
| 174 | return 0; |
| 175 | } |
| 176 | // Everything checked out, instantiate a new alias declaration ast |
| 177 | ObjcCompatibleAliasDecl *AliasDecl = |
| 178 | new ObjcCompatibleAliasDecl(AtCompatibilityAliasLoc, |
| 179 | AliasName, |
| 180 | dyn_cast<ObjcInterfaceDecl>(CDecl)); |
| 181 | |
| 182 | // Chain & install the interface decl into the identifier. |
| 183 | AliasDecl->setNext(AliasName->getFETokenInfo<ScopedDecl>()); |
| 184 | AliasName->setFETokenInfo(AliasDecl); |
| 185 | return AliasDecl; |
| 186 | } |
| 187 | |
| 188 | Sema::DeclTy *Sema::ActOnStartProtocolInterface( |
| 189 | SourceLocation AtProtoInterfaceLoc, |
| 190 | IdentifierInfo *ProtocolName, SourceLocation ProtocolLoc, |
| 191 | IdentifierInfo **ProtoRefNames, unsigned NumProtoRefs, |
| 192 | SourceLocation EndProtoLoc) { |
| 193 | assert(ProtocolName && "Missing protocol identifier"); |
| 194 | ObjcProtocolDecl *PDecl = ObjcProtocols[ProtocolName]; |
| 195 | if (PDecl) { |
| 196 | // Protocol already seen. Better be a forward protocol declaration |
| 197 | if (!PDecl->isForwardDecl()) |
| 198 | Diag(ProtocolLoc, diag::err_duplicate_protocol_def, |
| 199 | ProtocolName->getName()); |
| 200 | else { |
| 201 | PDecl->setForwardDecl(false); |
| 202 | PDecl->AllocReferencedProtocols(NumProtoRefs); |
| 203 | } |
| 204 | } |
| 205 | else { |
| 206 | PDecl = new ObjcProtocolDecl(AtProtoInterfaceLoc, NumProtoRefs, |
| 207 | ProtocolName); |
| 208 | ObjcProtocols[ProtocolName] = PDecl; |
| 209 | } |
| 210 | |
| 211 | if (NumProtoRefs) { |
| 212 | /// Check then save referenced protocols |
| 213 | for (unsigned int i = 0; i != NumProtoRefs; i++) { |
| 214 | ObjcProtocolDecl* RefPDecl = ObjcProtocols[ProtoRefNames[i]]; |
| 215 | if (!RefPDecl || RefPDecl->isForwardDecl()) |
| 216 | Diag(ProtocolLoc, diag::warn_undef_protocolref, |
| 217 | ProtoRefNames[i]->getName(), |
| 218 | ProtocolName->getName()); |
| 219 | PDecl->setReferencedProtocols((int)i, RefPDecl); |
| 220 | } |
| 221 | PDecl->setLocEnd(EndProtoLoc); |
| 222 | } |
| 223 | return PDecl; |
| 224 | } |
| 225 | |
| 226 | /// FindProtocolDeclaration - This routine looks up protocols and |
| 227 | /// issuer error if they are not declared. It returns list of protocol |
| 228 | /// declarations in its 'Protocols' argument. |
| 229 | void |
| 230 | Sema::FindProtocolDeclaration(SourceLocation TypeLoc, |
| 231 | IdentifierInfo **ProtocolId, |
| 232 | unsigned NumProtocols, |
| 233 | llvm::SmallVector<DeclTy *,8> &Protocols) { |
| 234 | for (unsigned i = 0; i != NumProtocols; ++i) { |
| 235 | ObjcProtocolDecl *PDecl = ObjcProtocols[ProtocolId[i]]; |
| 236 | if (!PDecl) |
| 237 | Diag(TypeLoc, diag::err_undeclared_protocol, |
| 238 | ProtocolId[i]->getName()); |
| 239 | else |
| 240 | Protocols.push_back(PDecl); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | /// ActOnForwardProtocolDeclaration - |
| 245 | Action::DeclTy * |
| 246 | Sema::ActOnForwardProtocolDeclaration(SourceLocation AtProtocolLoc, |
| 247 | IdentifierInfo **IdentList, unsigned NumElts) { |
| 248 | llvm::SmallVector<ObjcProtocolDecl*, 32> Protocols; |
| 249 | |
| 250 | for (unsigned i = 0; i != NumElts; ++i) { |
| 251 | IdentifierInfo *P = IdentList[i]; |
| 252 | ObjcProtocolDecl *PDecl = ObjcProtocols[P]; |
| 253 | if (!PDecl) { // Not already seen? |
| 254 | // FIXME: Pass in the location of the identifier! |
| 255 | PDecl = new ObjcProtocolDecl(AtProtocolLoc, 0, P, true); |
| 256 | ObjcProtocols[P] = PDecl; |
| 257 | } |
| 258 | |
| 259 | Protocols.push_back(PDecl); |
| 260 | } |
| 261 | return new ObjcForwardProtocolDecl(AtProtocolLoc, |
| 262 | &Protocols[0], Protocols.size()); |
| 263 | } |
| 264 | |
| 265 | Sema::DeclTy *Sema::ActOnStartCategoryInterface( |
| 266 | SourceLocation AtInterfaceLoc, |
| 267 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 268 | IdentifierInfo *CategoryName, SourceLocation CategoryLoc, |
| 269 | IdentifierInfo **ProtoRefNames, unsigned NumProtoRefs, |
| 270 | SourceLocation EndProtoLoc) { |
| 271 | ObjcInterfaceDecl *IDecl = getObjCInterfaceDecl(ClassName); |
| 272 | |
| 273 | /// Check that class of this category is already completely declared. |
| 274 | if (!IDecl || IDecl->isForwardDecl()) { |
| 275 | Diag(ClassLoc, diag::err_undef_interface, ClassName->getName()); |
| 276 | return 0; |
| 277 | } |
| 278 | ObjcCategoryDecl *CDecl = new ObjcCategoryDecl(AtInterfaceLoc, NumProtoRefs, |
| 279 | CategoryName); |
| 280 | CDecl->setClassInterface(IDecl); |
| 281 | /// Check for duplicate interface declaration for this category |
| 282 | ObjcCategoryDecl *CDeclChain; |
| 283 | for (CDeclChain = IDecl->getCategoryList(); CDeclChain; |
| 284 | CDeclChain = CDeclChain->getNextClassCategory()) { |
| 285 | if (CDeclChain->getIdentifier() == CategoryName) { |
| 286 | Diag(CategoryLoc, diag::err_dup_category_def, ClassName->getName(), |
| 287 | CategoryName->getName()); |
| 288 | break; |
| 289 | } |
| 290 | } |
| 291 | if (!CDeclChain) |
| 292 | CDecl->insertNextClassCategory(); |
| 293 | |
| 294 | if (NumProtoRefs) { |
| 295 | /// Check then save referenced protocols |
| 296 | for (unsigned int i = 0; i != NumProtoRefs; i++) { |
| 297 | ObjcProtocolDecl* RefPDecl = ObjcProtocols[ProtoRefNames[i]]; |
| 298 | if (!RefPDecl || RefPDecl->isForwardDecl()) { |
| 299 | Diag(CategoryLoc, diag::warn_undef_protocolref, |
| 300 | ProtoRefNames[i]->getName(), |
| 301 | CategoryName->getName()); |
| 302 | } |
| 303 | CDecl->setCatReferencedProtocols((int)i, RefPDecl); |
| 304 | } |
| 305 | CDecl->setLocEnd(EndProtoLoc); |
| 306 | } |
| 307 | return CDecl; |
| 308 | } |
| 309 | |
| 310 | /// ActOnStartCategoryImplementation - Perform semantic checks on the |
| 311 | /// category implementation declaration and build an ObjcCategoryImplDecl |
| 312 | /// object. |
| 313 | Sema::DeclTy *Sema::ActOnStartCategoryImplementation( |
| 314 | SourceLocation AtCatImplLoc, |
| 315 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 316 | IdentifierInfo *CatName, SourceLocation CatLoc) { |
| 317 | ObjcInterfaceDecl *IDecl = getObjCInterfaceDecl(ClassName); |
| 318 | ObjcCategoryImplDecl *CDecl = new ObjcCategoryImplDecl(AtCatImplLoc, |
| 319 | CatName, IDecl); |
| 320 | /// Check that class of this category is already completely declared. |
| 321 | if (!IDecl || IDecl->isForwardDecl()) |
| 322 | Diag(ClassLoc, diag::err_undef_interface, ClassName->getName()); |
| 323 | |
| 324 | /// TODO: Check that CatName, category name, is not used in another |
| 325 | // implementation. |
| 326 | return CDecl; |
| 327 | } |
| 328 | |
| 329 | Sema::DeclTy *Sema::ActOnStartClassImplementation( |
| 330 | SourceLocation AtClassImplLoc, |
| 331 | IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| 332 | IdentifierInfo *SuperClassname, |
| 333 | SourceLocation SuperClassLoc) { |
| 334 | ObjcInterfaceDecl* IDecl = 0; |
| 335 | // Check for another declaration kind with the same name. |
| 336 | ScopedDecl *PrevDecl = LookupInterfaceDecl(ClassName); |
| 337 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 338 | Diag(ClassLoc, diag::err_redefinition_different_kind, |
| 339 | ClassName->getName()); |
| 340 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 341 | } |
| 342 | else { |
| 343 | // Is there an interface declaration of this class; if not, warn! |
| 344 | IDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 345 | if (!IDecl) |
| 346 | Diag(ClassLoc, diag::warn_undef_interface, ClassName->getName()); |
| 347 | } |
| 348 | |
| 349 | // Check that super class name is valid class name |
| 350 | ObjcInterfaceDecl* SDecl = 0; |
| 351 | if (SuperClassname) { |
| 352 | // Check if a different kind of symbol declared in this scope. |
| 353 | PrevDecl = LookupInterfaceDecl(SuperClassname); |
| 354 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 355 | Diag(SuperClassLoc, diag::err_redefinition_different_kind, |
| 356 | SuperClassname->getName()); |
| 357 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 358 | } |
| 359 | else { |
| 360 | SDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 361 | if (!SDecl) |
| 362 | Diag(SuperClassLoc, diag::err_undef_superclass, |
| 363 | SuperClassname->getName(), ClassName->getName()); |
| 364 | else if (IDecl && IDecl->getSuperClass() != SDecl) { |
| 365 | // This implementation and its interface do not have the same |
| 366 | // super class. |
| 367 | Diag(SuperClassLoc, diag::err_conflicting_super_class, |
| 368 | SDecl->getName()); |
| 369 | Diag(SDecl->getLocation(), diag::err_previous_definition); |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | if (!IDecl) { |
| 375 | // Legacy case of @implementation with no corresponding @interface. |
| 376 | // Build, chain & install the interface decl into the identifier. |
| 377 | IDecl = new ObjcInterfaceDecl(AtClassImplLoc, 0, ClassName, |
| 378 | false, true); |
| 379 | IDecl->setNext(ClassName->getFETokenInfo<ScopedDecl>()); |
| 380 | ClassName->setFETokenInfo(IDecl); |
| 381 | IDecl->setSuperClass(SDecl); |
| 382 | IDecl->setLocEnd(ClassLoc); |
| 383 | |
| 384 | // Remember that this needs to be removed when the scope is popped. |
| 385 | TUScope->AddDecl(IDecl); |
| 386 | } |
| 387 | |
| 388 | ObjcImplementationDecl* IMPDecl = |
| 389 | new ObjcImplementationDecl(AtClassImplLoc, ClassName, IDecl, SDecl); |
| 390 | |
| 391 | // Check that there is no duplicate implementation of this class. |
| 392 | if (ObjcImplementations[ClassName]) |
| 393 | Diag(ClassLoc, diag::err_dup_implementation_class, ClassName->getName()); |
| 394 | else // add it to the list. |
| 395 | ObjcImplementations[ClassName] = IMPDecl; |
| 396 | return IMPDecl; |
| 397 | } |
| 398 | |
| 399 | void Sema::CheckImplementationIvars(ObjcImplementationDecl *ImpDecl, |
| 400 | ObjcIvarDecl **ivars, unsigned numIvars, |
| 401 | SourceLocation RBrace) { |
| 402 | assert(ImpDecl && "missing implementation decl"); |
| 403 | ObjcInterfaceDecl* IDecl = getObjCInterfaceDecl(ImpDecl->getIdentifier()); |
| 404 | if (!IDecl) |
| 405 | return; |
| 406 | /// Check case of non-existing @interface decl. |
| 407 | /// (legacy objective-c @implementation decl without an @interface decl). |
| 408 | /// Add implementations's ivar to the synthesize class's ivar list. |
| 409 | if (IDecl->ImplicitInterfaceDecl()) { |
| 410 | IDecl->addInstanceVariablesToClass(ivars, numIvars, RBrace); |
| 411 | return; |
| 412 | } |
| 413 | // If implementation has empty ivar list, just return. |
| 414 | if (numIvars == 0) |
| 415 | return; |
| 416 | |
| 417 | assert(ivars && "missing @implementation ivars"); |
| 418 | |
| 419 | // Check interface's Ivar list against those in the implementation. |
| 420 | // names and types must match. |
| 421 | // |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 422 | unsigned j = 0; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 423 | ObjcInterfaceDecl::ivar_iterator |
| 424 | IVI = IDecl->ivar_begin(), IVE = IDecl->ivar_end(); |
| 425 | for (; numIvars > 0 && IVI != IVE; ++IVI) { |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 426 | ObjcIvarDecl* ImplIvar = ivars[j++]; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 427 | ObjcIvarDecl* ClsIvar = *IVI; |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 428 | assert (ImplIvar && "missing implementation ivar"); |
| 429 | assert (ClsIvar && "missing class ivar"); |
| 430 | if (ImplIvar->getCanonicalType() != ClsIvar->getCanonicalType()) { |
| 431 | Diag(ImplIvar->getLocation(), diag::err_conflicting_ivar_type, |
| 432 | ImplIvar->getIdentifier()->getName()); |
| 433 | Diag(ClsIvar->getLocation(), diag::err_previous_definition, |
| 434 | ClsIvar->getIdentifier()->getName()); |
| 435 | } |
| 436 | // TODO: Two mismatched (unequal width) Ivar bitfields should be diagnosed |
| 437 | // as error. |
| 438 | else if (ImplIvar->getIdentifier() != ClsIvar->getIdentifier()) { |
| 439 | Diag(ImplIvar->getLocation(), diag::err_conflicting_ivar_name, |
| 440 | ImplIvar->getIdentifier()->getName()); |
| 441 | Diag(ClsIvar->getLocation(), diag::err_previous_definition, |
| 442 | ClsIvar->getIdentifier()->getName()); |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 443 | return; |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 444 | } |
| 445 | --numIvars; |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 446 | } |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 447 | |
| 448 | if (numIvars > 0) |
Chris Lattner | 0e39105 | 2007-12-12 18:19:52 +0000 | [diff] [blame] | 449 | Diag(ivars[j]->getLocation(), diag::err_inconsistant_ivar_count); |
Chris Lattner | 609e4c7 | 2007-12-12 18:11:49 +0000 | [diff] [blame] | 450 | else if (IVI != IVE) |
Chris Lattner | 0e39105 | 2007-12-12 18:19:52 +0000 | [diff] [blame] | 451 | Diag((*IVI)->getLocation(), diag::err_inconsistant_ivar_count); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 452 | } |
| 453 | |
| 454 | /// CheckProtocolMethodDefs - This routine checks unimpletented methods |
| 455 | /// Declared in protocol, and those referenced by it. |
| 456 | void Sema::CheckProtocolMethodDefs(ObjcProtocolDecl *PDecl, |
| 457 | bool& IncompleteImpl, |
| 458 | const llvm::DenseSet<Selector> &InsMap, |
| 459 | const llvm::DenseSet<Selector> &ClsMap) { |
| 460 | // check unimplemented instance methods. |
Steve Naroff | 58dbdeb | 2007-12-14 23:37:57 +0000 | [diff] [blame] | 461 | for (ObjcProtocolDecl::instmeth_iterator I = PDecl->instmeth_begin(), |
| 462 | E = PDecl->instmeth_end(); I != E; ++I) { |
| 463 | ObjcMethodDecl *method = *I; |
| 464 | if (!InsMap.count(method->getSelector()) && |
| 465 | method->getImplementationControl() != ObjcMethodDecl::Optional) { |
| 466 | Diag(method->getLocation(), diag::warn_undef_method_impl, |
| 467 | method->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 468 | IncompleteImpl = true; |
| 469 | } |
| 470 | } |
| 471 | // check unimplemented class methods |
Steve Naroff | 58dbdeb | 2007-12-14 23:37:57 +0000 | [diff] [blame] | 472 | for (ObjcProtocolDecl::classmeth_iterator I = PDecl->classmeth_begin(), |
| 473 | E = PDecl->classmeth_end(); I != E; ++I) { |
| 474 | ObjcMethodDecl *method = *I; |
| 475 | if (!ClsMap.count(method->getSelector()) && |
| 476 | method->getImplementationControl() != ObjcMethodDecl::Optional) { |
| 477 | Diag(method->getLocation(), diag::warn_undef_method_impl, |
| 478 | method->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 479 | IncompleteImpl = true; |
| 480 | } |
Steve Naroff | 58dbdeb | 2007-12-14 23:37:57 +0000 | [diff] [blame] | 481 | } |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 482 | // Check on this protocols's referenced protocols, recursively |
| 483 | ObjcProtocolDecl** RefPDecl = PDecl->getReferencedProtocols(); |
| 484 | for (int i = 0; i < PDecl->getNumReferencedProtocols(); i++) |
| 485 | CheckProtocolMethodDefs(RefPDecl[i], IncompleteImpl, InsMap, ClsMap); |
| 486 | } |
| 487 | |
| 488 | void Sema::ImplMethodsVsClassMethods(ObjcImplementationDecl* IMPDecl, |
| 489 | ObjcInterfaceDecl* IDecl) { |
| 490 | llvm::DenseSet<Selector> InsMap; |
| 491 | // Check and see if instance methods in class interface have been |
| 492 | // implemented in the implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 493 | for (ObjcImplementationDecl::instmeth_iterator I = IMPDecl->instmeth_begin(), |
| 494 | E = IMPDecl->instmeth_end(); I != E; ++I) |
| 495 | InsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 496 | |
| 497 | bool IncompleteImpl = false; |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 498 | for (ObjcInterfaceDecl::instmeth_iterator I = IDecl->instmeth_begin(), |
| 499 | E = IDecl->instmeth_end(); I != E; ++I) |
| 500 | if (!InsMap.count((*I)->getSelector())) { |
| 501 | Diag((*I)->getLocation(), diag::warn_undef_method_impl, |
| 502 | (*I)->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 503 | IncompleteImpl = true; |
| 504 | } |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 505 | |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 506 | llvm::DenseSet<Selector> ClsMap; |
| 507 | // Check and see if class methods in class interface have been |
| 508 | // implemented in the implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 509 | for (ObjcImplementationDecl::classmeth_iterator I =IMPDecl->classmeth_begin(), |
| 510 | E = IMPDecl->classmeth_end(); I != E; ++I) |
| 511 | ClsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 512 | |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 513 | for (ObjcInterfaceDecl::classmeth_iterator I = IDecl->classmeth_begin(), |
| 514 | E = IDecl->classmeth_end(); I != E; ++I) |
| 515 | if (!ClsMap.count((*I)->getSelector())) { |
| 516 | Diag((*I)->getLocation(), diag::warn_undef_method_impl, |
| 517 | (*I)->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 518 | IncompleteImpl = true; |
| 519 | } |
| 520 | |
| 521 | // Check the protocol list for unimplemented methods in the @implementation |
| 522 | // class. |
| 523 | ObjcProtocolDecl** protocols = IDecl->getReferencedProtocols(); |
| 524 | for (int i = 0; i < IDecl->getNumIntfRefProtocols(); i++) |
| 525 | CheckProtocolMethodDefs(protocols[i], IncompleteImpl, InsMap, ClsMap); |
| 526 | |
| 527 | if (IncompleteImpl) |
| 528 | Diag(IMPDecl->getLocation(), diag::warn_incomplete_impl_class, |
| 529 | IMPDecl->getName()); |
| 530 | } |
| 531 | |
| 532 | /// ImplCategoryMethodsVsIntfMethods - Checks that methods declared in the |
| 533 | /// category interface is implemented in the category @implementation. |
| 534 | void Sema::ImplCategoryMethodsVsIntfMethods(ObjcCategoryImplDecl *CatImplDecl, |
| 535 | ObjcCategoryDecl *CatClassDecl) { |
| 536 | llvm::DenseSet<Selector> InsMap; |
| 537 | // Check and see if instance methods in category interface have been |
| 538 | // implemented in its implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 539 | for (ObjcCategoryImplDecl::instmeth_iterator I =CatImplDecl->instmeth_begin(), |
| 540 | E = CatImplDecl->instmeth_end(); I != E; ++I) |
| 541 | InsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 542 | |
| 543 | bool IncompleteImpl = false; |
Steve Naroff | 58dbdeb | 2007-12-14 23:37:57 +0000 | [diff] [blame] | 544 | for (ObjcCategoryDecl::instmeth_iterator I = CatClassDecl->instmeth_begin(), |
| 545 | E = CatClassDecl->instmeth_end(); I != E; ++I) |
| 546 | if (!InsMap.count((*I)->getSelector())) { |
| 547 | Diag((*I)->getLocation(), diag::warn_undef_method_impl, |
| 548 | (*I)->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 549 | IncompleteImpl = true; |
| 550 | } |
| 551 | llvm::DenseSet<Selector> ClsMap; |
| 552 | // Check and see if class methods in category interface have been |
| 553 | // implemented in its implementation class. |
Chris Lattner | 4c52509 | 2007-12-12 17:58:05 +0000 | [diff] [blame] | 554 | for (ObjcCategoryImplDecl::classmeth_iterator |
| 555 | I = CatImplDecl->classmeth_begin(), E = CatImplDecl->classmeth_end(); |
| 556 | I != E; ++I) |
| 557 | ClsMap.insert((*I)->getSelector()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 558 | |
Steve Naroff | 58dbdeb | 2007-12-14 23:37:57 +0000 | [diff] [blame] | 559 | for (ObjcCategoryDecl::classmeth_iterator I = CatClassDecl->classmeth_begin(), |
| 560 | E = CatClassDecl->classmeth_end(); I != E; ++I) |
| 561 | if (!ClsMap.count((*I)->getSelector())) { |
| 562 | Diag((*I)->getLocation(), diag::warn_undef_method_impl, |
| 563 | (*I)->getSelector().getName()); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 564 | IncompleteImpl = true; |
| 565 | } |
| 566 | |
| 567 | // Check the protocol list for unimplemented methods in the @implementation |
| 568 | // class. |
| 569 | ObjcProtocolDecl** protocols = CatClassDecl->getReferencedProtocols(); |
| 570 | for (int i = 0; i < CatClassDecl->getNumReferencedProtocols(); i++) { |
| 571 | ObjcProtocolDecl* PDecl = protocols[i]; |
| 572 | CheckProtocolMethodDefs(PDecl, IncompleteImpl, InsMap, ClsMap); |
| 573 | } |
| 574 | if (IncompleteImpl) |
| 575 | Diag(CatImplDecl->getLocation(), diag::warn_incomplete_impl_category, |
| 576 | CatClassDecl->getName()); |
| 577 | } |
| 578 | |
| 579 | /// ActOnForwardClassDeclaration - |
| 580 | Action::DeclTy * |
| 581 | Sema::ActOnForwardClassDeclaration(SourceLocation AtClassLoc, |
| 582 | IdentifierInfo **IdentList, unsigned NumElts) |
| 583 | { |
| 584 | llvm::SmallVector<ObjcInterfaceDecl*, 32> Interfaces; |
| 585 | |
| 586 | for (unsigned i = 0; i != NumElts; ++i) { |
| 587 | // Check for another declaration kind with the same name. |
| 588 | ScopedDecl *PrevDecl = LookupInterfaceDecl(IdentList[i]); |
| 589 | if (PrevDecl && !isa<ObjcInterfaceDecl>(PrevDecl)) { |
| 590 | Diag(AtClassLoc, diag::err_redefinition_different_kind, |
| 591 | IdentList[i]->getName()); |
| 592 | Diag(PrevDecl->getLocation(), diag::err_previous_definition); |
| 593 | } |
| 594 | ObjcInterfaceDecl *IDecl = dyn_cast_or_null<ObjcInterfaceDecl>(PrevDecl); |
| 595 | if (!IDecl) { // Not already seen? Make a forward decl. |
| 596 | IDecl = new ObjcInterfaceDecl(AtClassLoc, 0, IdentList[i], true); |
| 597 | // Chain & install the interface decl into the identifier. |
| 598 | IDecl->setNext(IdentList[i]->getFETokenInfo<ScopedDecl>()); |
| 599 | IdentList[i]->setFETokenInfo(IDecl); |
| 600 | |
| 601 | // Remember that this needs to be removed when the scope is popped. |
| 602 | TUScope->AddDecl(IDecl); |
| 603 | } |
| 604 | |
| 605 | Interfaces.push_back(IDecl); |
| 606 | } |
| 607 | |
| 608 | return new ObjcClassDecl(AtClassLoc, &Interfaces[0], Interfaces.size()); |
| 609 | } |
| 610 | |
| 611 | |
| 612 | /// MatchTwoMethodDeclarations - Checks that two methods have matching type and |
| 613 | /// returns true, or false, accordingly. |
| 614 | /// TODO: Handle protocol list; such as id<p1,p2> in type comparisons |
| 615 | bool Sema::MatchTwoMethodDeclarations(const ObjcMethodDecl *Method, |
| 616 | const ObjcMethodDecl *PrevMethod) { |
| 617 | if (Method->getResultType().getCanonicalType() != |
| 618 | PrevMethod->getResultType().getCanonicalType()) |
| 619 | return false; |
| 620 | for (int i = 0; i < Method->getNumParams(); i++) { |
| 621 | ParmVarDecl *ParamDecl = Method->getParamDecl(i); |
| 622 | ParmVarDecl *PrevParamDecl = PrevMethod->getParamDecl(i); |
| 623 | if (ParamDecl->getCanonicalType() != PrevParamDecl->getCanonicalType()) |
| 624 | return false; |
| 625 | } |
| 626 | return true; |
| 627 | } |
| 628 | |
| 629 | void Sema::AddInstanceMethodToGlobalPool(ObjcMethodDecl *Method) { |
| 630 | ObjcMethodList &FirstMethod = InstanceMethodPool[Method->getSelector()]; |
| 631 | if (!FirstMethod.Method) { |
| 632 | // Haven't seen a method with this selector name yet - add it. |
| 633 | FirstMethod.Method = Method; |
| 634 | FirstMethod.Next = 0; |
| 635 | } else { |
| 636 | // We've seen a method with this name, now check the type signature(s). |
| 637 | bool match = MatchTwoMethodDeclarations(Method, FirstMethod.Method); |
| 638 | |
| 639 | for (ObjcMethodList *Next = FirstMethod.Next; !match && Next; |
| 640 | Next = Next->Next) |
| 641 | match = MatchTwoMethodDeclarations(Method, Next->Method); |
| 642 | |
| 643 | if (!match) { |
| 644 | // We have a new signature for an existing method - add it. |
| 645 | // This is extremely rare. Only 1% of Cocoa selectors are "overloaded". |
| 646 | struct ObjcMethodList *OMI = new ObjcMethodList(Method, FirstMethod.Next); |
| 647 | FirstMethod.Next = OMI; |
| 648 | } |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | void Sema::AddFactoryMethodToGlobalPool(ObjcMethodDecl *Method) { |
| 653 | ObjcMethodList &FirstMethod = FactoryMethodPool[Method->getSelector()]; |
| 654 | if (!FirstMethod.Method) { |
| 655 | // Haven't seen a method with this selector name yet - add it. |
| 656 | FirstMethod.Method = Method; |
| 657 | FirstMethod.Next = 0; |
| 658 | } else { |
| 659 | // We've seen a method with this name, now check the type signature(s). |
| 660 | bool match = MatchTwoMethodDeclarations(Method, FirstMethod.Method); |
| 661 | |
| 662 | for (ObjcMethodList *Next = FirstMethod.Next; !match && Next; |
| 663 | Next = Next->Next) |
| 664 | match = MatchTwoMethodDeclarations(Method, Next->Method); |
| 665 | |
| 666 | if (!match) { |
| 667 | // We have a new signature for an existing method - add it. |
| 668 | // This is extremely rare. Only 1% of Cocoa selectors are "overloaded". |
| 669 | struct ObjcMethodList *OMI = new ObjcMethodList(Method, FirstMethod.Next); |
| 670 | FirstMethod.Next = OMI; |
| 671 | } |
| 672 | } |
| 673 | } |
| 674 | |
Steve Naroff | a56f616 | 2007-12-18 01:30:32 +0000 | [diff] [blame] | 675 | // Note: For class/category implemenations, allMethods/allProperties is |
| 676 | // always null. |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 677 | void Sema::ActOnAtEnd(SourceLocation AtEndLoc, DeclTy *classDecl, |
| 678 | DeclTy **allMethods, unsigned allNum, |
| 679 | DeclTy **allProperties, unsigned pNum) { |
| 680 | Decl *ClassDecl = static_cast<Decl *>(classDecl); |
| 681 | |
Steve Naroff | a56f616 | 2007-12-18 01:30:32 +0000 | [diff] [blame] | 682 | // FIXME: If we don't have a ClassDecl, we have an error. We should consider |
| 683 | // always passing in a decl. If the decl has an error, isInvalidDecl() |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 684 | // should be true. |
| 685 | if (!ClassDecl) |
| 686 | return; |
| 687 | |
| 688 | llvm::SmallVector<ObjcMethodDecl*, 32> insMethods; |
| 689 | llvm::SmallVector<ObjcMethodDecl*, 16> clsMethods; |
| 690 | |
| 691 | llvm::DenseMap<Selector, const ObjcMethodDecl*> InsMap; |
| 692 | llvm::DenseMap<Selector, const ObjcMethodDecl*> ClsMap; |
| 693 | |
| 694 | bool isInterfaceDeclKind = |
| 695 | (isa<ObjcInterfaceDecl>(ClassDecl) || isa<ObjcCategoryDecl>(ClassDecl) |
| 696 | || isa<ObjcProtocolDecl>(ClassDecl)); |
| 697 | bool checkIdenticalMethods = isa<ObjcImplementationDecl>(ClassDecl); |
| 698 | |
| 699 | // TODO: property declaration in category and protocols. |
| 700 | if (pNum != 0 && isa<ObjcInterfaceDecl>(ClassDecl)) { |
| 701 | ObjcPropertyDecl **properties = new ObjcPropertyDecl*[pNum]; |
| 702 | memcpy(properties, allProperties, pNum*sizeof(ObjcPropertyDecl*)); |
| 703 | dyn_cast<ObjcInterfaceDecl>(ClassDecl)->setPropertyDecls(properties); |
| 704 | dyn_cast<ObjcInterfaceDecl>(ClassDecl)->setNumPropertyDecl(pNum); |
| 705 | } |
| 706 | |
| 707 | for (unsigned i = 0; i < allNum; i++ ) { |
| 708 | ObjcMethodDecl *Method = |
| 709 | cast_or_null<ObjcMethodDecl>(static_cast<Decl*>(allMethods[i])); |
| 710 | |
| 711 | if (!Method) continue; // Already issued a diagnostic. |
| 712 | if (Method->isInstance()) { |
| 713 | /// Check for instance method of the same name with incompatible types |
| 714 | const ObjcMethodDecl *&PrevMethod = InsMap[Method->getSelector()]; |
| 715 | bool match = PrevMethod ? MatchTwoMethodDeclarations(Method, PrevMethod) |
| 716 | : false; |
| 717 | if (isInterfaceDeclKind && PrevMethod && !match |
| 718 | || checkIdenticalMethods && match) { |
| 719 | Diag(Method->getLocation(), diag::error_duplicate_method_decl, |
| 720 | Method->getSelector().getName()); |
| 721 | Diag(PrevMethod->getLocation(), diag::err_previous_declaration); |
| 722 | } else { |
| 723 | insMethods.push_back(Method); |
| 724 | InsMap[Method->getSelector()] = Method; |
| 725 | /// The following allows us to typecheck messages to "id". |
| 726 | AddInstanceMethodToGlobalPool(Method); |
| 727 | } |
| 728 | } |
| 729 | else { |
| 730 | /// Check for class method of the same name with incompatible types |
| 731 | const ObjcMethodDecl *&PrevMethod = ClsMap[Method->getSelector()]; |
| 732 | bool match = PrevMethod ? MatchTwoMethodDeclarations(Method, PrevMethod) |
| 733 | : false; |
| 734 | if (isInterfaceDeclKind && PrevMethod && !match |
| 735 | || checkIdenticalMethods && match) { |
| 736 | Diag(Method->getLocation(), diag::error_duplicate_method_decl, |
| 737 | Method->getSelector().getName()); |
| 738 | Diag(PrevMethod->getLocation(), diag::err_previous_declaration); |
| 739 | } else { |
| 740 | clsMethods.push_back(Method); |
| 741 | ClsMap[Method->getSelector()] = Method; |
Steve Naroff | a56f616 | 2007-12-18 01:30:32 +0000 | [diff] [blame] | 742 | /// The following allows us to typecheck messages to "Class". |
| 743 | AddFactoryMethodToGlobalPool(Method); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 744 | } |
| 745 | } |
| 746 | } |
| 747 | |
| 748 | if (ObjcInterfaceDecl *I = dyn_cast<ObjcInterfaceDecl>(ClassDecl)) { |
| 749 | I->addMethods(&insMethods[0], insMethods.size(), |
| 750 | &clsMethods[0], clsMethods.size(), AtEndLoc); |
| 751 | } else if (ObjcProtocolDecl *P = dyn_cast<ObjcProtocolDecl>(ClassDecl)) { |
| 752 | P->addMethods(&insMethods[0], insMethods.size(), |
| 753 | &clsMethods[0], clsMethods.size(), AtEndLoc); |
| 754 | } |
| 755 | else if (ObjcCategoryDecl *C = dyn_cast<ObjcCategoryDecl>(ClassDecl)) { |
| 756 | C->addMethods(&insMethods[0], insMethods.size(), |
| 757 | &clsMethods[0], clsMethods.size(), AtEndLoc); |
| 758 | } |
| 759 | else if (ObjcImplementationDecl *IC = |
| 760 | dyn_cast<ObjcImplementationDecl>(ClassDecl)) { |
| 761 | IC->setLocEnd(AtEndLoc); |
| 762 | if (ObjcInterfaceDecl* IDecl = getObjCInterfaceDecl(IC->getIdentifier())) |
| 763 | ImplMethodsVsClassMethods(IC, IDecl); |
| 764 | } else { |
| 765 | ObjcCategoryImplDecl* CatImplClass = cast<ObjcCategoryImplDecl>(ClassDecl); |
| 766 | CatImplClass->setLocEnd(AtEndLoc); |
| 767 | ObjcInterfaceDecl* IDecl = CatImplClass->getClassInterface(); |
| 768 | // Find category interface decl and then check that all methods declared |
| 769 | // in this interface is implemented in the category @implementation. |
| 770 | if (IDecl) { |
| 771 | for (ObjcCategoryDecl *Categories = IDecl->getCategoryList(); |
| 772 | Categories; Categories = Categories->getNextClassCategory()) { |
| 773 | if (Categories->getIdentifier() == CatImplClass->getIdentifier()) { |
| 774 | ImplCategoryMethodsVsIntfMethods(CatImplClass, Categories); |
| 775 | break; |
| 776 | } |
| 777 | } |
| 778 | } |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | |
| 783 | /// CvtQTToAstBitMask - utility routine to produce an AST bitmask for |
| 784 | /// objective-c's type qualifier from the parser version of the same info. |
| 785 | static Decl::ObjcDeclQualifier |
| 786 | CvtQTToAstBitMask(ObjcDeclSpec::ObjcDeclQualifier PQTVal) { |
| 787 | Decl::ObjcDeclQualifier ret = Decl::OBJC_TQ_None; |
| 788 | if (PQTVal & ObjcDeclSpec::DQ_In) |
| 789 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_In); |
| 790 | if (PQTVal & ObjcDeclSpec::DQ_Inout) |
| 791 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Inout); |
| 792 | if (PQTVal & ObjcDeclSpec::DQ_Out) |
| 793 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Out); |
| 794 | if (PQTVal & ObjcDeclSpec::DQ_Bycopy) |
| 795 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Bycopy); |
| 796 | if (PQTVal & ObjcDeclSpec::DQ_Byref) |
| 797 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Byref); |
| 798 | if (PQTVal & ObjcDeclSpec::DQ_Oneway) |
| 799 | ret = (Decl::ObjcDeclQualifier)(ret | Decl::OBJC_TQ_Oneway); |
| 800 | |
| 801 | return ret; |
| 802 | } |
| 803 | |
| 804 | Sema::DeclTy *Sema::ActOnMethodDeclaration( |
| 805 | SourceLocation MethodLoc, SourceLocation EndLoc, |
| 806 | tok::TokenKind MethodType, DeclTy *ClassDecl, |
| 807 | ObjcDeclSpec &ReturnQT, TypeTy *ReturnType, |
| 808 | Selector Sel, |
| 809 | // optional arguments. The number of types/arguments is obtained |
| 810 | // from the Sel.getNumArgs(). |
| 811 | ObjcDeclSpec *ArgQT, TypeTy **ArgTypes, IdentifierInfo **ArgNames, |
| 812 | AttributeList *AttrList, tok::ObjCKeywordKind MethodDeclKind, |
| 813 | bool isVariadic) { |
| 814 | llvm::SmallVector<ParmVarDecl*, 16> Params; |
| 815 | |
| 816 | for (unsigned i = 0; i < Sel.getNumArgs(); i++) { |
| 817 | // FIXME: arg->AttrList must be stored too! |
| 818 | QualType argType; |
| 819 | |
| 820 | if (ArgTypes[i]) |
| 821 | argType = QualType::getFromOpaquePtr(ArgTypes[i]); |
| 822 | else |
| 823 | argType = Context.getObjcIdType(); |
| 824 | ParmVarDecl* Param = new ParmVarDecl(SourceLocation(/*FIXME*/), ArgNames[i], |
| 825 | argType, VarDecl::None, 0); |
| 826 | Param->setObjcDeclQualifier( |
| 827 | CvtQTToAstBitMask(ArgQT[i].getObjcDeclQualifier())); |
| 828 | Params.push_back(Param); |
| 829 | } |
| 830 | QualType resultDeclType; |
| 831 | |
| 832 | if (ReturnType) |
| 833 | resultDeclType = QualType::getFromOpaquePtr(ReturnType); |
| 834 | else // get the type for "id". |
| 835 | resultDeclType = Context.getObjcIdType(); |
| 836 | |
| 837 | Decl *CDecl = static_cast<Decl*>(ClassDecl); |
| 838 | ObjcMethodDecl* ObjcMethod = new ObjcMethodDecl(MethodLoc, EndLoc, Sel, |
| 839 | resultDeclType, |
| 840 | CDecl, |
| 841 | 0, -1, AttrList, |
| 842 | MethodType == tok::minus, isVariadic, |
| 843 | MethodDeclKind == tok::objc_optional ? |
| 844 | ObjcMethodDecl::Optional : |
| 845 | ObjcMethodDecl::Required); |
| 846 | ObjcMethod->setMethodParams(&Params[0], Sel.getNumArgs()); |
| 847 | ObjcMethod->setObjcDeclQualifier( |
| 848 | CvtQTToAstBitMask(ReturnQT.getObjcDeclQualifier())); |
| 849 | const ObjcMethodDecl *PrevMethod = 0; |
| 850 | |
| 851 | // For implementations (which can be very "coarse grain"), we add the |
| 852 | // method now. This allows the AST to implement lookup methods that work |
| 853 | // incrementally (without waiting until we parse the @end). It also allows |
| 854 | // us to flag multiple declaration errors as they occur. |
| 855 | if (ObjcImplementationDecl *ImpDecl = |
| 856 | dyn_cast<ObjcImplementationDecl>(CDecl)) { |
| 857 | if (MethodType == tok::minus) { |
Steve Naroff | 94a5c33 | 2007-12-19 22:27:04 +0000 | [diff] [blame^] | 858 | PrevMethod = ImpDecl->getInstanceMethod(Sel); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 859 | ImpDecl->addInstanceMethod(ObjcMethod); |
| 860 | } else { |
Steve Naroff | 94a5c33 | 2007-12-19 22:27:04 +0000 | [diff] [blame^] | 861 | PrevMethod = ImpDecl->getClassMethod(Sel); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 862 | ImpDecl->addClassMethod(ObjcMethod); |
| 863 | } |
| 864 | } |
| 865 | else if (ObjcCategoryImplDecl *CatImpDecl = |
| 866 | dyn_cast<ObjcCategoryImplDecl>(CDecl)) { |
| 867 | if (MethodType == tok::minus) { |
Steve Naroff | 94a5c33 | 2007-12-19 22:27:04 +0000 | [diff] [blame^] | 868 | PrevMethod = CatImpDecl->getInstanceMethod(Sel); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 869 | CatImpDecl->addInstanceMethod(ObjcMethod); |
| 870 | } else { |
Steve Naroff | 94a5c33 | 2007-12-19 22:27:04 +0000 | [diff] [blame^] | 871 | PrevMethod = CatImpDecl->getClassMethod(Sel); |
Chris Lattner | 4d39148 | 2007-12-12 07:09:47 +0000 | [diff] [blame] | 872 | CatImpDecl->addClassMethod(ObjcMethod); |
| 873 | } |
| 874 | } |
| 875 | if (PrevMethod) { |
| 876 | // You can never have two method definitions with the same name. |
| 877 | Diag(ObjcMethod->getLocation(), diag::error_duplicate_method_decl, |
| 878 | ObjcMethod->getSelector().getName()); |
| 879 | Diag(PrevMethod->getLocation(), diag::err_previous_declaration); |
| 880 | } |
| 881 | return ObjcMethod; |
| 882 | } |
| 883 | |
| 884 | Sema::DeclTy *Sema::ActOnAddObjcProperties(SourceLocation AtLoc, |
| 885 | DeclTy **allProperties, unsigned NumProperties, ObjcDeclSpec &DS) { |
| 886 | ObjcPropertyDecl *PDecl = new ObjcPropertyDecl(AtLoc); |
| 887 | |
| 888 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_readonly) |
| 889 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_readonly); |
| 890 | |
| 891 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_getter) { |
| 892 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_getter); |
| 893 | PDecl->setGetterName(DS.getGetterName()); |
| 894 | } |
| 895 | |
| 896 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_setter) { |
| 897 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_setter); |
| 898 | PDecl->setSetterName(DS.getSetterName()); |
| 899 | } |
| 900 | |
| 901 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_assign) |
| 902 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_assign); |
| 903 | |
| 904 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_readwrite) |
| 905 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_readwrite); |
| 906 | |
| 907 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_retain) |
| 908 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_retain); |
| 909 | |
| 910 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_copy) |
| 911 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_copy); |
| 912 | |
| 913 | if(DS.getPropertyAttributes() & ObjcDeclSpec::DQ_PR_nonatomic) |
| 914 | PDecl->setPropertyAttributes(ObjcPropertyDecl::OBJC_PR_nonatomic); |
| 915 | |
| 916 | PDecl->setNumPropertyDecls(NumProperties); |
| 917 | if (NumProperties != 0) { |
| 918 | ObjcIvarDecl **properties = new ObjcIvarDecl*[NumProperties]; |
| 919 | memcpy(properties, allProperties, NumProperties*sizeof(ObjcIvarDecl*)); |
| 920 | PDecl->setPropertyDecls(properties); |
| 921 | } |
| 922 | return PDecl; |
| 923 | } |
| 924 | |