1 //===- CXCursor.cpp - Routines for manipulating CXCursors -----------------===// 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 defines routines for manipulating CXCursors. It should be the 11 // only file that has internal knowledge of the encoding of the data in 12 // CXCursor. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #include "CXTranslationUnit.h" 17 #include "CXCursor.h" 18 #include "CXString.h" 19 #include "clang/Frontend/ASTUnit.h" 20 #include "clang/AST/Decl.h" 21 #include "clang/AST/DeclCXX.h" 22 #include "clang/AST/DeclObjC.h" 23 #include "clang/AST/Expr.h" 24 #include "clang/AST/ExprCXX.h" 25 #include "clang-c/Index.h" 26 #include "llvm/Support/ErrorHandling.h" 27 28 using namespace clang; 29 using namespace cxcursor; 30 31 CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K) { 32 assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid); 33 CXCursor C = { K, { 0, 0, 0 } }; 34 return C; 35 } 36 37 static CXCursorKind GetCursorKind(const Attr *A) { 38 assert(A && "Invalid arguments!"); 39 switch (A->getKind()) { 40 default: break; 41 case attr::IBAction: return CXCursor_IBActionAttr; 42 case attr::IBOutlet: return CXCursor_IBOutletAttr; 43 case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr; 44 } 45 46 return CXCursor_UnexposedAttr; 47 } 48 49 CXCursor cxcursor::MakeCXCursor(const Attr *A, Decl *Parent, 50 CXTranslationUnit TU) { 51 assert(A && Parent && TU && "Invalid arguments!"); 52 CXCursor C = { GetCursorKind(A), { Parent, (void*)A, TU } }; 53 return C; 54 } 55 56 CXCursor cxcursor::MakeCXCursor(Decl *D, CXTranslationUnit TU, 57 bool FirstInDeclGroup) { 58 assert(D && TU && "Invalid arguments!"); 59 CXCursor C = { getCursorKindForDecl(D), 60 { D, (void*) (FirstInDeclGroup ? 1 : 0), TU } 61 }; 62 return C; 63 } 64 65 CXCursor cxcursor::MakeCXCursor(Stmt *S, Decl *Parent, 66 CXTranslationUnit TU) { 67 assert(S && TU && "Invalid arguments!"); 68 CXCursorKind K = CXCursor_NotImplemented; 69 70 switch (S->getStmtClass()) { 71 case Stmt::NoStmtClass: 72 break; 73 74 case Stmt::NullStmtClass: 75 case Stmt::CompoundStmtClass: 76 case Stmt::CaseStmtClass: 77 case Stmt::DefaultStmtClass: 78 case Stmt::IfStmtClass: 79 case Stmt::SwitchStmtClass: 80 case Stmt::WhileStmtClass: 81 case Stmt::DoStmtClass: 82 case Stmt::ForStmtClass: 83 case Stmt::GotoStmtClass: 84 case Stmt::IndirectGotoStmtClass: 85 case Stmt::ContinueStmtClass: 86 case Stmt::BreakStmtClass: 87 case Stmt::ReturnStmtClass: 88 case Stmt::DeclStmtClass: 89 case Stmt::SwitchCaseClass: 90 case Stmt::AsmStmtClass: 91 case Stmt::ObjCAtTryStmtClass: 92 case Stmt::ObjCAtCatchStmtClass: 93 case Stmt::ObjCAtFinallyStmtClass: 94 case Stmt::ObjCAtThrowStmtClass: 95 case Stmt::ObjCAtSynchronizedStmtClass: 96 case Stmt::ObjCForCollectionStmtClass: 97 case Stmt::CXXCatchStmtClass: 98 case Stmt::CXXTryStmtClass: 99 K = CXCursor_UnexposedStmt; 100 break; 101 102 case Stmt::LabelStmtClass: 103 K = CXCursor_LabelStmt; 104 break; 105 106 case Stmt::PredefinedExprClass: 107 case Stmt::IntegerLiteralClass: 108 case Stmt::FloatingLiteralClass: 109 case Stmt::ImaginaryLiteralClass: 110 case Stmt::StringLiteralClass: 111 case Stmt::CharacterLiteralClass: 112 case Stmt::ParenExprClass: 113 case Stmt::UnaryOperatorClass: 114 case Stmt::OffsetOfExprClass: 115 case Stmt::SizeOfAlignOfExprClass: 116 case Stmt::ArraySubscriptExprClass: 117 case Stmt::BinaryOperatorClass: 118 case Stmt::CompoundAssignOperatorClass: 119 case Stmt::ConditionalOperatorClass: 120 case Stmt::ImplicitCastExprClass: 121 case Stmt::CStyleCastExprClass: 122 case Stmt::CompoundLiteralExprClass: 123 case Stmt::ExtVectorElementExprClass: 124 case Stmt::InitListExprClass: 125 case Stmt::DesignatedInitExprClass: 126 case Stmt::ImplicitValueInitExprClass: 127 case Stmt::ParenListExprClass: 128 case Stmt::VAArgExprClass: 129 case Stmt::AddrLabelExprClass: 130 case Stmt::StmtExprClass: 131 case Stmt::ChooseExprClass: 132 case Stmt::GNUNullExprClass: 133 case Stmt::CXXStaticCastExprClass: 134 case Stmt::CXXDynamicCastExprClass: 135 case Stmt::CXXReinterpretCastExprClass: 136 case Stmt::CXXConstCastExprClass: 137 case Stmt::CXXFunctionalCastExprClass: 138 case Stmt::CXXTypeidExprClass: 139 case Stmt::CXXUuidofExprClass: 140 case Stmt::CXXBoolLiteralExprClass: 141 case Stmt::CXXNullPtrLiteralExprClass: 142 case Stmt::CXXThisExprClass: 143 case Stmt::CXXThrowExprClass: 144 case Stmt::CXXDefaultArgExprClass: 145 case Stmt::CXXScalarValueInitExprClass: 146 case Stmt::CXXNewExprClass: 147 case Stmt::CXXDeleteExprClass: 148 case Stmt::CXXPseudoDestructorExprClass: 149 case Stmt::UnresolvedLookupExprClass: 150 case Stmt::UnaryTypeTraitExprClass: 151 case Stmt::BinaryTypeTraitExprClass: 152 case Stmt::DependentScopeDeclRefExprClass: 153 case Stmt::CXXBindTemporaryExprClass: 154 case Stmt::ExprWithCleanupsClass: 155 case Stmt::CXXUnresolvedConstructExprClass: 156 case Stmt::CXXDependentScopeMemberExprClass: 157 case Stmt::UnresolvedMemberExprClass: 158 case Stmt::CXXNoexceptExprClass: 159 case Stmt::ObjCStringLiteralClass: 160 case Stmt::ObjCEncodeExprClass: 161 case Stmt::ObjCSelectorExprClass: 162 case Stmt::ObjCProtocolExprClass: 163 case Stmt::ObjCIsaExprClass: 164 case Stmt::ShuffleVectorExprClass: 165 case Stmt::BlockExprClass: 166 case Stmt::OpaqueValueExprClass: 167 K = CXCursor_UnexposedExpr; 168 break; 169 170 case Stmt::DeclRefExprClass: 171 case Stmt::BlockDeclRefExprClass: 172 // FIXME: UnresolvedLookupExpr? 173 // FIXME: DependentScopeDeclRefExpr? 174 K = CXCursor_DeclRefExpr; 175 break; 176 177 case Stmt::MemberExprClass: 178 case Stmt::ObjCIvarRefExprClass: 179 case Stmt::ObjCPropertyRefExprClass: 180 // FIXME: UnresolvedMemberExpr? 181 // FIXME: CXXDependentScopeMemberExpr? 182 K = CXCursor_MemberRefExpr; 183 break; 184 185 case Stmt::CallExprClass: 186 case Stmt::CXXOperatorCallExprClass: 187 case Stmt::CXXMemberCallExprClass: 188 case Stmt::CXXConstructExprClass: 189 case Stmt::CXXTemporaryObjectExprClass: 190 // FIXME: CXXUnresolvedConstructExpr 191 K = CXCursor_CallExpr; 192 break; 193 194 case Stmt::ObjCMessageExprClass: 195 K = CXCursor_ObjCMessageExpr; 196 break; 197 } 198 199 CXCursor C = { K, { Parent, S, TU } }; 200 return C; 201 } 202 203 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super, 204 SourceLocation Loc, 205 CXTranslationUnit TU) { 206 assert(Super && TU && "Invalid arguments!"); 207 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 208 CXCursor C = { CXCursor_ObjCSuperClassRef, { Super, RawLoc, TU } }; 209 return C; 210 } 211 212 std::pair<ObjCInterfaceDecl *, SourceLocation> 213 cxcursor::getCursorObjCSuperClassRef(CXCursor C) { 214 assert(C.kind == CXCursor_ObjCSuperClassRef); 215 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 216 SourceLocation::getFromRawEncoding( 217 reinterpret_cast<uintptr_t>(C.data[1]))); 218 } 219 220 CXCursor cxcursor::MakeCursorObjCProtocolRef(ObjCProtocolDecl *Super, 221 SourceLocation Loc, 222 CXTranslationUnit TU) { 223 assert(Super && TU && "Invalid arguments!"); 224 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 225 CXCursor C = { CXCursor_ObjCProtocolRef, { Super, RawLoc, TU } }; 226 return C; 227 } 228 229 std::pair<ObjCProtocolDecl *, SourceLocation> 230 cxcursor::getCursorObjCProtocolRef(CXCursor C) { 231 assert(C.kind == CXCursor_ObjCProtocolRef); 232 return std::make_pair(static_cast<ObjCProtocolDecl *>(C.data[0]), 233 SourceLocation::getFromRawEncoding( 234 reinterpret_cast<uintptr_t>(C.data[1]))); 235 } 236 237 CXCursor cxcursor::MakeCursorObjCClassRef(ObjCInterfaceDecl *Class, 238 SourceLocation Loc, 239 CXTranslationUnit TU) { 240 // 'Class' can be null for invalid code. 241 if (!Class) 242 return MakeCXCursorInvalid(CXCursor_InvalidCode); 243 assert(TU && "Invalid arguments!"); 244 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 245 CXCursor C = { CXCursor_ObjCClassRef, { Class, RawLoc, TU } }; 246 return C; 247 } 248 249 std::pair<ObjCInterfaceDecl *, SourceLocation> 250 cxcursor::getCursorObjCClassRef(CXCursor C) { 251 assert(C.kind == CXCursor_ObjCClassRef); 252 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 253 SourceLocation::getFromRawEncoding( 254 reinterpret_cast<uintptr_t>(C.data[1]))); 255 } 256 257 CXCursor cxcursor::MakeCursorTypeRef(TypeDecl *Type, SourceLocation Loc, 258 CXTranslationUnit TU) { 259 assert(Type && TU && "Invalid arguments!"); 260 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 261 CXCursor C = { CXCursor_TypeRef, { Type, RawLoc, TU } }; 262 return C; 263 } 264 265 std::pair<TypeDecl *, SourceLocation> 266 cxcursor::getCursorTypeRef(CXCursor C) { 267 assert(C.kind == CXCursor_TypeRef); 268 return std::make_pair(static_cast<TypeDecl *>(C.data[0]), 269 SourceLocation::getFromRawEncoding( 270 reinterpret_cast<uintptr_t>(C.data[1]))); 271 } 272 273 CXCursor cxcursor::MakeCursorTemplateRef(TemplateDecl *Template, 274 SourceLocation Loc, 275 CXTranslationUnit TU) { 276 assert(Template && TU && "Invalid arguments!"); 277 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 278 CXCursor C = { CXCursor_TemplateRef, { Template, RawLoc, TU } }; 279 return C; 280 } 281 282 std::pair<TemplateDecl *, SourceLocation> 283 cxcursor::getCursorTemplateRef(CXCursor C) { 284 assert(C.kind == CXCursor_TemplateRef); 285 return std::make_pair(static_cast<TemplateDecl *>(C.data[0]), 286 SourceLocation::getFromRawEncoding( 287 reinterpret_cast<uintptr_t>(C.data[1]))); 288 } 289 290 CXCursor cxcursor::MakeCursorNamespaceRef(NamedDecl *NS, SourceLocation Loc, 291 CXTranslationUnit TU) { 292 293 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU && 294 "Invalid arguments!"); 295 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 296 CXCursor C = { CXCursor_NamespaceRef, { NS, RawLoc, TU } }; 297 return C; 298 } 299 300 std::pair<NamedDecl *, SourceLocation> 301 cxcursor::getCursorNamespaceRef(CXCursor C) { 302 assert(C.kind == CXCursor_NamespaceRef); 303 return std::make_pair(static_cast<NamedDecl *>(C.data[0]), 304 SourceLocation::getFromRawEncoding( 305 reinterpret_cast<uintptr_t>(C.data[1]))); 306 } 307 308 CXCursor cxcursor::MakeCursorMemberRef(FieldDecl *Field, SourceLocation Loc, 309 CXTranslationUnit TU) { 310 311 assert(Field && TU && "Invalid arguments!"); 312 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 313 CXCursor C = { CXCursor_MemberRef, { Field, RawLoc, TU } }; 314 return C; 315 } 316 317 std::pair<FieldDecl *, SourceLocation> 318 cxcursor::getCursorMemberRef(CXCursor C) { 319 assert(C.kind == CXCursor_MemberRef); 320 return std::make_pair(static_cast<FieldDecl *>(C.data[0]), 321 SourceLocation::getFromRawEncoding( 322 reinterpret_cast<uintptr_t>(C.data[1]))); 323 } 324 325 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(CXXBaseSpecifier *B, 326 CXTranslationUnit TU){ 327 CXCursor C = { CXCursor_CXXBaseSpecifier, { B, 0, TU } }; 328 return C; 329 } 330 331 CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) { 332 assert(C.kind == CXCursor_CXXBaseSpecifier); 333 return static_cast<CXXBaseSpecifier*>(C.data[0]); 334 } 335 336 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range, 337 CXTranslationUnit TU) { 338 CXCursor C = { CXCursor_PreprocessingDirective, 339 { reinterpret_cast<void *>(Range.getBegin().getRawEncoding()), 340 reinterpret_cast<void *>(Range.getEnd().getRawEncoding()), 341 TU } 342 }; 343 return C; 344 } 345 346 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) { 347 assert(C.kind == CXCursor_PreprocessingDirective); 348 return SourceRange(SourceLocation::getFromRawEncoding( 349 reinterpret_cast<uintptr_t> (C.data[0])), 350 SourceLocation::getFromRawEncoding( 351 reinterpret_cast<uintptr_t> (C.data[1]))); 352 } 353 354 CXCursor cxcursor::MakeMacroDefinitionCursor(MacroDefinition *MI, 355 CXTranslationUnit TU) { 356 CXCursor C = { CXCursor_MacroDefinition, { MI, 0, TU } }; 357 return C; 358 } 359 360 MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) { 361 assert(C.kind == CXCursor_MacroDefinition); 362 return static_cast<MacroDefinition *>(C.data[0]); 363 } 364 365 CXCursor cxcursor::MakeMacroInstantiationCursor(MacroInstantiation *MI, 366 CXTranslationUnit TU) { 367 CXCursor C = { CXCursor_MacroInstantiation, { MI, 0, TU } }; 368 return C; 369 } 370 371 MacroInstantiation *cxcursor::getCursorMacroInstantiation(CXCursor C) { 372 assert(C.kind == CXCursor_MacroInstantiation); 373 return static_cast<MacroInstantiation *>(C.data[0]); 374 } 375 376 CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID, 377 CXTranslationUnit TU) { 378 CXCursor C = { CXCursor_InclusionDirective, { ID, 0, TU } }; 379 return C; 380 } 381 382 InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) { 383 assert(C.kind == CXCursor_InclusionDirective); 384 return static_cast<InclusionDirective *>(C.data[0]); 385 } 386 387 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc, 388 CXTranslationUnit TU) { 389 390 assert(Label && TU && "Invalid arguments!"); 391 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 392 CXCursor C = { CXCursor_LabelRef, { Label, RawLoc, TU } }; 393 return C; 394 } 395 396 std::pair<LabelStmt*, SourceLocation> 397 cxcursor::getCursorLabelRef(CXCursor C) { 398 assert(C.kind == CXCursor_LabelRef); 399 return std::make_pair(static_cast<LabelStmt *>(C.data[0]), 400 SourceLocation::getFromRawEncoding( 401 reinterpret_cast<uintptr_t>(C.data[1]))); 402 } 403 404 CXCursor cxcursor::MakeCursorOverloadedDeclRef(OverloadExpr *E, 405 CXTranslationUnit TU) { 406 assert(E && TU && "Invalid arguments!"); 407 OverloadedDeclRefStorage Storage(E); 408 void *RawLoc = reinterpret_cast<void *>(E->getNameLoc().getRawEncoding()); 409 CXCursor C = { 410 CXCursor_OverloadedDeclRef, 411 { Storage.getOpaqueValue(), RawLoc, TU } 412 }; 413 return C; 414 } 415 416 CXCursor cxcursor::MakeCursorOverloadedDeclRef(Decl *D, 417 SourceLocation Loc, 418 CXTranslationUnit TU) { 419 assert(D && TU && "Invalid arguments!"); 420 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 421 OverloadedDeclRefStorage Storage(D); 422 CXCursor C = { 423 CXCursor_OverloadedDeclRef, 424 { Storage.getOpaqueValue(), RawLoc, TU } 425 }; 426 return C; 427 } 428 429 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name, 430 SourceLocation Loc, 431 CXTranslationUnit TU) { 432 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!"); 433 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 434 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate()); 435 CXCursor C = { 436 CXCursor_OverloadedDeclRef, 437 { Storage.getOpaqueValue(), RawLoc, TU } 438 }; 439 return C; 440 } 441 442 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation> 443 cxcursor::getCursorOverloadedDeclRef(CXCursor C) { 444 assert(C.kind == CXCursor_OverloadedDeclRef); 445 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(C.data[0]), 446 SourceLocation::getFromRawEncoding( 447 reinterpret_cast<uintptr_t>(C.data[1]))); 448 } 449 450 Decl *cxcursor::getCursorDecl(CXCursor Cursor) { 451 return (Decl *)Cursor.data[0]; 452 } 453 454 Expr *cxcursor::getCursorExpr(CXCursor Cursor) { 455 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor)); 456 } 457 458 Stmt *cxcursor::getCursorStmt(CXCursor Cursor) { 459 if (Cursor.kind == CXCursor_ObjCSuperClassRef || 460 Cursor.kind == CXCursor_ObjCProtocolRef || 461 Cursor.kind == CXCursor_ObjCClassRef) 462 return 0; 463 464 return (Stmt *)Cursor.data[1]; 465 } 466 467 Attr *cxcursor::getCursorAttr(CXCursor Cursor) { 468 return (Attr *)Cursor.data[1]; 469 } 470 471 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) { 472 return getCursorASTUnit(Cursor)->getASTContext(); 473 } 474 475 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) { 476 return static_cast<ASTUnit *>(static_cast<CXTranslationUnit>(Cursor.data[2]) 477 ->TUData); 478 } 479 480 CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) { 481 return static_cast<CXTranslationUnit>(Cursor.data[2]); 482 } 483 484 bool cxcursor::operator==(CXCursor X, CXCursor Y) { 485 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] && 486 X.data[2] == Y.data[2]; 487 } 488 489 // FIXME: Remove once we can model DeclGroups and their appropriate ranges 490 // properly in the ASTs. 491 bool cxcursor::isFirstInDeclGroup(CXCursor C) { 492 assert(clang_isDeclaration(C.kind)); 493 return ((uintptr_t) (C.data[1])) != 0; 494 } 495 496 //===----------------------------------------------------------------------===// 497 // CXCursorSet. 498 //===----------------------------------------------------------------------===// 499 500 typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl; 501 502 static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) { 503 return (CXCursorSet) setImpl; 504 } 505 static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) { 506 return (CXCursorSet_Impl*) set; 507 } 508 namespace llvm { 509 template<> struct DenseMapInfo<CXCursor> { 510 public: 511 static inline CXCursor getEmptyKey() { 512 return MakeCXCursorInvalid(CXCursor_InvalidFile); 513 } 514 static inline CXCursor getTombstoneKey() { 515 return MakeCXCursorInvalid(CXCursor_NoDeclFound); 516 } 517 static inline unsigned getHashValue(const CXCursor &cursor) { 518 return llvm::DenseMapInfo<std::pair<void*,void*> > 519 ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1])); 520 } 521 static inline bool isEqual(const CXCursor &x, const CXCursor &y) { 522 return x.kind == y.kind && 523 x.data[0] == y.data[0] && 524 x.data[1] == y.data[1]; 525 } 526 }; 527 } 528 529 extern "C" { 530 CXCursorSet clang_createCXCursorSet() { 531 return packCXCursorSet(new CXCursorSet_Impl()); 532 } 533 534 void clang_disposeCXCursorSet(CXCursorSet set) { 535 delete unpackCXCursorSet(set); 536 } 537 538 unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) { 539 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 540 if (!setImpl) 541 return 0; 542 return setImpl->find(cursor) == setImpl->end(); 543 } 544 545 unsigned clang_CXCurorSet_insert(CXCursorSet set, CXCursor cursor) { 546 // Do not insert invalid cursors into the set. 547 if (cursor.kind >= CXCursor_FirstInvalid && 548 cursor.kind <= CXCursor_LastInvalid) 549 return 1; 550 551 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 552 if (!setImpl) 553 return 1; 554 unsigned &entry = (*setImpl)[cursor]; 555 unsigned flag = entry == 0 ? 1 : 0; 556 entry = 1; 557 return flag; 558 } 559 } // end: extern "C" 560 561