CXCursor.cpp revision ad762fcdc16b9e4705b12b09d92b8c026212b906
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 28using namespace clang; 29using namespace cxcursor; 30 31CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K) { 32 assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid); 33 CXCursor C = { K, { 0, 0, 0 } }; 34 return C; 35} 36 37static 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 49CXCursor 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 56CXCursor cxcursor::MakeCXCursor(Decl *D, CXTranslationUnit TU, 57 bool FirstInDeclGroup) { 58 assert(D && TU && "Invalid arguments!"); 59 CXCursor C = { getCursorKindForDecl(D), 60 { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU } 61 }; 62 return C; 63} 64 65CXCursor 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::AsmStmtClass: 90 case Stmt::ObjCAtTryStmtClass: 91 case Stmt::ObjCAtCatchStmtClass: 92 case Stmt::ObjCAtFinallyStmtClass: 93 case Stmt::ObjCAtThrowStmtClass: 94 case Stmt::ObjCAtSynchronizedStmtClass: 95 case Stmt::ObjCForCollectionStmtClass: 96 case Stmt::CXXCatchStmtClass: 97 case Stmt::CXXTryStmtClass: 98 case Stmt::CXXForRangeStmtClass: 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::UnaryExprOrTypeTraitExprClass: 116 case Stmt::ArraySubscriptExprClass: 117 case Stmt::BinaryOperatorClass: 118 case Stmt::CompoundAssignOperatorClass: 119 case Stmt::ConditionalOperatorClass: 120 case Stmt::BinaryConditionalOperatorClass: 121 case Stmt::ImplicitCastExprClass: 122 case Stmt::CStyleCastExprClass: 123 case Stmt::CompoundLiteralExprClass: 124 case Stmt::ExtVectorElementExprClass: 125 case Stmt::InitListExprClass: 126 case Stmt::DesignatedInitExprClass: 127 case Stmt::ImplicitValueInitExprClass: 128 case Stmt::ParenListExprClass: 129 case Stmt::VAArgExprClass: 130 case Stmt::AddrLabelExprClass: 131 case Stmt::StmtExprClass: 132 case Stmt::ChooseExprClass: 133 case Stmt::GNUNullExprClass: 134 case Stmt::CXXStaticCastExprClass: 135 case Stmt::CXXDynamicCastExprClass: 136 case Stmt::CXXReinterpretCastExprClass: 137 case Stmt::CXXConstCastExprClass: 138 case Stmt::CXXFunctionalCastExprClass: 139 case Stmt::CXXTypeidExprClass: 140 case Stmt::CXXUuidofExprClass: 141 case Stmt::CXXBoolLiteralExprClass: 142 case Stmt::CXXNullPtrLiteralExprClass: 143 case Stmt::CXXThisExprClass: 144 case Stmt::CXXThrowExprClass: 145 case Stmt::CXXDefaultArgExprClass: 146 case Stmt::CXXScalarValueInitExprClass: 147 case Stmt::CXXNewExprClass: 148 case Stmt::CXXDeleteExprClass: 149 case Stmt::CXXPseudoDestructorExprClass: 150 case Stmt::UnresolvedLookupExprClass: 151 case Stmt::UnaryTypeTraitExprClass: 152 case Stmt::BinaryTypeTraitExprClass: 153 case Stmt::DependentScopeDeclRefExprClass: 154 case Stmt::CXXBindTemporaryExprClass: 155 case Stmt::ExprWithCleanupsClass: 156 case Stmt::CXXUnresolvedConstructExprClass: 157 case Stmt::CXXDependentScopeMemberExprClass: 158 case Stmt::UnresolvedMemberExprClass: 159 case Stmt::CXXNoexceptExprClass: 160 case Stmt::ObjCStringLiteralClass: 161 case Stmt::ObjCEncodeExprClass: 162 case Stmt::ObjCSelectorExprClass: 163 case Stmt::ObjCProtocolExprClass: 164 case Stmt::ObjCIsaExprClass: 165 case Stmt::ShuffleVectorExprClass: 166 case Stmt::BlockExprClass: 167 case Stmt::OpaqueValueExprClass: 168 case Stmt::PackExpansionExprClass: 169 case Stmt::SizeOfPackExprClass: 170 K = CXCursor_UnexposedExpr; 171 break; 172 173 case Stmt::DeclRefExprClass: 174 case Stmt::BlockDeclRefExprClass: 175 case Stmt::SubstNonTypeTemplateParmPackExprClass: 176 // FIXME: UnresolvedLookupExpr? 177 // FIXME: DependentScopeDeclRefExpr? 178 K = CXCursor_DeclRefExpr; 179 break; 180 181 case Stmt::MemberExprClass: 182 case Stmt::ObjCIvarRefExprClass: 183 case Stmt::ObjCPropertyRefExprClass: 184 // FIXME: UnresolvedMemberExpr? 185 // FIXME: CXXDependentScopeMemberExpr? 186 K = CXCursor_MemberRefExpr; 187 break; 188 189 case Stmt::CallExprClass: 190 case Stmt::CXXOperatorCallExprClass: 191 case Stmt::CXXMemberCallExprClass: 192 case Stmt::CUDAKernelCallExprClass: 193 case Stmt::CXXConstructExprClass: 194 case Stmt::CXXTemporaryObjectExprClass: 195 // FIXME: CXXUnresolvedConstructExpr 196 K = CXCursor_CallExpr; 197 break; 198 199 case Stmt::ObjCMessageExprClass: 200 K = CXCursor_ObjCMessageExpr; 201 break; 202 } 203 204 CXCursor C = { K, { Parent, S, TU } }; 205 return C; 206} 207 208CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super, 209 SourceLocation Loc, 210 CXTranslationUnit TU) { 211 assert(Super && TU && "Invalid arguments!"); 212 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 213 CXCursor C = { CXCursor_ObjCSuperClassRef, { Super, RawLoc, TU } }; 214 return C; 215} 216 217std::pair<ObjCInterfaceDecl *, SourceLocation> 218cxcursor::getCursorObjCSuperClassRef(CXCursor C) { 219 assert(C.kind == CXCursor_ObjCSuperClassRef); 220 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 221 SourceLocation::getFromRawEncoding( 222 reinterpret_cast<uintptr_t>(C.data[1]))); 223} 224 225CXCursor cxcursor::MakeCursorObjCProtocolRef(ObjCProtocolDecl *Super, 226 SourceLocation Loc, 227 CXTranslationUnit TU) { 228 assert(Super && TU && "Invalid arguments!"); 229 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 230 CXCursor C = { CXCursor_ObjCProtocolRef, { Super, RawLoc, TU } }; 231 return C; 232} 233 234std::pair<ObjCProtocolDecl *, SourceLocation> 235cxcursor::getCursorObjCProtocolRef(CXCursor C) { 236 assert(C.kind == CXCursor_ObjCProtocolRef); 237 return std::make_pair(static_cast<ObjCProtocolDecl *>(C.data[0]), 238 SourceLocation::getFromRawEncoding( 239 reinterpret_cast<uintptr_t>(C.data[1]))); 240} 241 242CXCursor cxcursor::MakeCursorObjCClassRef(ObjCInterfaceDecl *Class, 243 SourceLocation Loc, 244 CXTranslationUnit TU) { 245 // 'Class' can be null for invalid code. 246 if (!Class) 247 return MakeCXCursorInvalid(CXCursor_InvalidCode); 248 assert(TU && "Invalid arguments!"); 249 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 250 CXCursor C = { CXCursor_ObjCClassRef, { Class, RawLoc, TU } }; 251 return C; 252} 253 254std::pair<ObjCInterfaceDecl *, SourceLocation> 255cxcursor::getCursorObjCClassRef(CXCursor C) { 256 assert(C.kind == CXCursor_ObjCClassRef); 257 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 258 SourceLocation::getFromRawEncoding( 259 reinterpret_cast<uintptr_t>(C.data[1]))); 260} 261 262CXCursor cxcursor::MakeCursorTypeRef(TypeDecl *Type, SourceLocation Loc, 263 CXTranslationUnit TU) { 264 assert(Type && TU && "Invalid arguments!"); 265 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 266 CXCursor C = { CXCursor_TypeRef, { Type, RawLoc, TU } }; 267 return C; 268} 269 270std::pair<TypeDecl *, SourceLocation> 271cxcursor::getCursorTypeRef(CXCursor C) { 272 assert(C.kind == CXCursor_TypeRef); 273 return std::make_pair(static_cast<TypeDecl *>(C.data[0]), 274 SourceLocation::getFromRawEncoding( 275 reinterpret_cast<uintptr_t>(C.data[1]))); 276} 277 278CXCursor cxcursor::MakeCursorTemplateRef(TemplateDecl *Template, 279 SourceLocation Loc, 280 CXTranslationUnit TU) { 281 assert(Template && TU && "Invalid arguments!"); 282 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 283 CXCursor C = { CXCursor_TemplateRef, { Template, RawLoc, TU } }; 284 return C; 285} 286 287std::pair<TemplateDecl *, SourceLocation> 288cxcursor::getCursorTemplateRef(CXCursor C) { 289 assert(C.kind == CXCursor_TemplateRef); 290 return std::make_pair(static_cast<TemplateDecl *>(C.data[0]), 291 SourceLocation::getFromRawEncoding( 292 reinterpret_cast<uintptr_t>(C.data[1]))); 293} 294 295CXCursor cxcursor::MakeCursorNamespaceRef(NamedDecl *NS, SourceLocation Loc, 296 CXTranslationUnit TU) { 297 298 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU && 299 "Invalid arguments!"); 300 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 301 CXCursor C = { CXCursor_NamespaceRef, { NS, RawLoc, TU } }; 302 return C; 303} 304 305std::pair<NamedDecl *, SourceLocation> 306cxcursor::getCursorNamespaceRef(CXCursor C) { 307 assert(C.kind == CXCursor_NamespaceRef); 308 return std::make_pair(static_cast<NamedDecl *>(C.data[0]), 309 SourceLocation::getFromRawEncoding( 310 reinterpret_cast<uintptr_t>(C.data[1]))); 311} 312 313CXCursor cxcursor::MakeCursorMemberRef(FieldDecl *Field, SourceLocation Loc, 314 CXTranslationUnit TU) { 315 316 assert(Field && TU && "Invalid arguments!"); 317 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 318 CXCursor C = { CXCursor_MemberRef, { Field, RawLoc, TU } }; 319 return C; 320} 321 322std::pair<FieldDecl *, SourceLocation> 323cxcursor::getCursorMemberRef(CXCursor C) { 324 assert(C.kind == CXCursor_MemberRef); 325 return std::make_pair(static_cast<FieldDecl *>(C.data[0]), 326 SourceLocation::getFromRawEncoding( 327 reinterpret_cast<uintptr_t>(C.data[1]))); 328} 329 330CXCursor cxcursor::MakeCursorCXXBaseSpecifier(CXXBaseSpecifier *B, 331 CXTranslationUnit TU){ 332 CXCursor C = { CXCursor_CXXBaseSpecifier, { B, 0, TU } }; 333 return C; 334} 335 336CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) { 337 assert(C.kind == CXCursor_CXXBaseSpecifier); 338 return static_cast<CXXBaseSpecifier*>(C.data[0]); 339} 340 341CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range, 342 CXTranslationUnit TU) { 343 CXCursor C = { CXCursor_PreprocessingDirective, 344 { reinterpret_cast<void *>(Range.getBegin().getRawEncoding()), 345 reinterpret_cast<void *>(Range.getEnd().getRawEncoding()), 346 TU } 347 }; 348 return C; 349} 350 351SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) { 352 assert(C.kind == CXCursor_PreprocessingDirective); 353 return SourceRange(SourceLocation::getFromRawEncoding( 354 reinterpret_cast<uintptr_t> (C.data[0])), 355 SourceLocation::getFromRawEncoding( 356 reinterpret_cast<uintptr_t> (C.data[1]))); 357} 358 359CXCursor cxcursor::MakeMacroDefinitionCursor(MacroDefinition *MI, 360 CXTranslationUnit TU) { 361 CXCursor C = { CXCursor_MacroDefinition, { MI, 0, TU } }; 362 return C; 363} 364 365MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) { 366 assert(C.kind == CXCursor_MacroDefinition); 367 return static_cast<MacroDefinition *>(C.data[0]); 368} 369 370CXCursor cxcursor::MakeMacroInstantiationCursor(MacroInstantiation *MI, 371 CXTranslationUnit TU) { 372 CXCursor C = { CXCursor_MacroInstantiation, { MI, 0, TU } }; 373 return C; 374} 375 376MacroInstantiation *cxcursor::getCursorMacroInstantiation(CXCursor C) { 377 assert(C.kind == CXCursor_MacroInstantiation); 378 return static_cast<MacroInstantiation *>(C.data[0]); 379} 380 381CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID, 382 CXTranslationUnit TU) { 383 CXCursor C = { CXCursor_InclusionDirective, { ID, 0, TU } }; 384 return C; 385} 386 387InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) { 388 assert(C.kind == CXCursor_InclusionDirective); 389 return static_cast<InclusionDirective *>(C.data[0]); 390} 391 392CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc, 393 CXTranslationUnit TU) { 394 395 assert(Label && TU && "Invalid arguments!"); 396 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 397 CXCursor C = { CXCursor_LabelRef, { Label, RawLoc, TU } }; 398 return C; 399} 400 401std::pair<LabelStmt*, SourceLocation> 402cxcursor::getCursorLabelRef(CXCursor C) { 403 assert(C.kind == CXCursor_LabelRef); 404 return std::make_pair(static_cast<LabelStmt *>(C.data[0]), 405 SourceLocation::getFromRawEncoding( 406 reinterpret_cast<uintptr_t>(C.data[1]))); 407} 408 409CXCursor cxcursor::MakeCursorOverloadedDeclRef(OverloadExpr *E, 410 CXTranslationUnit TU) { 411 assert(E && TU && "Invalid arguments!"); 412 OverloadedDeclRefStorage Storage(E); 413 void *RawLoc = reinterpret_cast<void *>(E->getNameLoc().getRawEncoding()); 414 CXCursor C = { 415 CXCursor_OverloadedDeclRef, 416 { Storage.getOpaqueValue(), RawLoc, TU } 417 }; 418 return C; 419} 420 421CXCursor cxcursor::MakeCursorOverloadedDeclRef(Decl *D, 422 SourceLocation Loc, 423 CXTranslationUnit TU) { 424 assert(D && TU && "Invalid arguments!"); 425 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 426 OverloadedDeclRefStorage Storage(D); 427 CXCursor C = { 428 CXCursor_OverloadedDeclRef, 429 { Storage.getOpaqueValue(), RawLoc, TU } 430 }; 431 return C; 432} 433 434CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name, 435 SourceLocation Loc, 436 CXTranslationUnit TU) { 437 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!"); 438 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 439 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate()); 440 CXCursor C = { 441 CXCursor_OverloadedDeclRef, 442 { Storage.getOpaqueValue(), RawLoc, TU } 443 }; 444 return C; 445} 446 447std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation> 448cxcursor::getCursorOverloadedDeclRef(CXCursor C) { 449 assert(C.kind == CXCursor_OverloadedDeclRef); 450 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(C.data[0]), 451 SourceLocation::getFromRawEncoding( 452 reinterpret_cast<uintptr_t>(C.data[1]))); 453} 454 455Decl *cxcursor::getCursorDecl(CXCursor Cursor) { 456 return (Decl *)Cursor.data[0]; 457} 458 459Expr *cxcursor::getCursorExpr(CXCursor Cursor) { 460 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor)); 461} 462 463Stmt *cxcursor::getCursorStmt(CXCursor Cursor) { 464 if (Cursor.kind == CXCursor_ObjCSuperClassRef || 465 Cursor.kind == CXCursor_ObjCProtocolRef || 466 Cursor.kind == CXCursor_ObjCClassRef) 467 return 0; 468 469 return (Stmt *)Cursor.data[1]; 470} 471 472Attr *cxcursor::getCursorAttr(CXCursor Cursor) { 473 return (Attr *)Cursor.data[1]; 474} 475 476ASTContext &cxcursor::getCursorContext(CXCursor Cursor) { 477 return getCursorASTUnit(Cursor)->getASTContext(); 478} 479 480ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) { 481 return static_cast<ASTUnit *>(static_cast<CXTranslationUnit>(Cursor.data[2]) 482 ->TUData); 483} 484 485CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) { 486 return static_cast<CXTranslationUnit>(Cursor.data[2]); 487} 488 489bool cxcursor::operator==(CXCursor X, CXCursor Y) { 490 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] && 491 X.data[2] == Y.data[2]; 492} 493 494// FIXME: Remove once we can model DeclGroups and their appropriate ranges 495// properly in the ASTs. 496bool cxcursor::isFirstInDeclGroup(CXCursor C) { 497 assert(clang_isDeclaration(C.kind)); 498 return ((uintptr_t) (C.data[1])) != 0; 499} 500 501//===----------------------------------------------------------------------===// 502// CXCursorSet. 503//===----------------------------------------------------------------------===// 504 505typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl; 506 507static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) { 508 return (CXCursorSet) setImpl; 509} 510static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) { 511 return (CXCursorSet_Impl*) set; 512} 513namespace llvm { 514template<> struct DenseMapInfo<CXCursor> { 515public: 516 static inline CXCursor getEmptyKey() { 517 return MakeCXCursorInvalid(CXCursor_InvalidFile); 518 } 519 static inline CXCursor getTombstoneKey() { 520 return MakeCXCursorInvalid(CXCursor_NoDeclFound); 521 } 522 static inline unsigned getHashValue(const CXCursor &cursor) { 523 return llvm::DenseMapInfo<std::pair<void*,void*> > 524 ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1])); 525 } 526 static inline bool isEqual(const CXCursor &x, const CXCursor &y) { 527 return x.kind == y.kind && 528 x.data[0] == y.data[0] && 529 x.data[1] == y.data[1]; 530 } 531}; 532} 533 534extern "C" { 535CXCursorSet clang_createCXCursorSet() { 536 return packCXCursorSet(new CXCursorSet_Impl()); 537} 538 539void clang_disposeCXCursorSet(CXCursorSet set) { 540 delete unpackCXCursorSet(set); 541} 542 543unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) { 544 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 545 if (!setImpl) 546 return 0; 547 return setImpl->find(cursor) == setImpl->end(); 548} 549 550unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) { 551 // Do not insert invalid cursors into the set. 552 if (cursor.kind >= CXCursor_FirstInvalid && 553 cursor.kind <= CXCursor_LastInvalid) 554 return 1; 555 556 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 557 if (!setImpl) 558 return 1; 559 unsigned &entry = (*setImpl)[cursor]; 560 unsigned flag = entry == 0 ? 1 : 0; 561 entry = 1; 562 return flag; 563} 564} // end: extern "C" 565