CXCursor.cpp revision 91a5755ad73c5dc1dfb167e448fdd74e75a6df56 
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::ObjCAutoreleasePoolStmtClass:
96  case Stmt::ObjCForCollectionStmtClass:
97  case Stmt::CXXCatchStmtClass:
98  case Stmt::CXXTryStmtClass:
99  case Stmt::CXXForRangeStmtClass:
100  case Stmt::SEHTryStmtClass:
101  case Stmt::SEHExceptStmtClass:
102  case Stmt::SEHFinallyStmtClass:
103  case Stmt::MaterializeTemporaryExprClass:
104    K = CXCursor_UnexposedStmt;
105    break;
106
107  case Stmt::LabelStmtClass:
108    K = CXCursor_LabelStmt;
109    break;
110
111  case Stmt::PredefinedExprClass:
112  case Stmt::IntegerLiteralClass:
113  case Stmt::FloatingLiteralClass:
114  case Stmt::ImaginaryLiteralClass:
115  case Stmt::StringLiteralClass:
116  case Stmt::CharacterLiteralClass:
117  case Stmt::ParenExprClass:
118  case Stmt::UnaryOperatorClass:
119  case Stmt::OffsetOfExprClass:
120  case Stmt::UnaryExprOrTypeTraitExprClass:
121  case Stmt::ArraySubscriptExprClass:
122  case Stmt::BinaryOperatorClass:
123  case Stmt::CompoundAssignOperatorClass:
124  case Stmt::ConditionalOperatorClass:
125  case Stmt::BinaryConditionalOperatorClass:
126  case Stmt::ImplicitCastExprClass:
127  case Stmt::CStyleCastExprClass:
128  case Stmt::CompoundLiteralExprClass:
129  case Stmt::ExtVectorElementExprClass:
130  case Stmt::InitListExprClass:
131  case Stmt::DesignatedInitExprClass:
132  case Stmt::ImplicitValueInitExprClass:
133  case Stmt::ParenListExprClass:
134  case Stmt::VAArgExprClass:
135  case Stmt::AddrLabelExprClass:
136  case Stmt::StmtExprClass:
137  case Stmt::ChooseExprClass:
138  case Stmt::GenericSelectionExprClass:
139  case Stmt::GNUNullExprClass:
140  case Stmt::CXXStaticCastExprClass:
141  case Stmt::CXXDynamicCastExprClass:
142  case Stmt::CXXReinterpretCastExprClass:
143  case Stmt::CXXConstCastExprClass:
144  case Stmt::CXXFunctionalCastExprClass:
145  case Stmt::CXXTypeidExprClass:
146  case Stmt::CXXUuidofExprClass:
147  case Stmt::CXXBoolLiteralExprClass:
148  case Stmt::CXXNullPtrLiteralExprClass:
149  case Stmt::CXXThisExprClass:
150  case Stmt::CXXThrowExprClass:
151  case Stmt::CXXDefaultArgExprClass:
152  case Stmt::CXXScalarValueInitExprClass:
153  case Stmt::CXXNewExprClass:
154  case Stmt::CXXDeleteExprClass:
155  case Stmt::CXXPseudoDestructorExprClass:
156  case Stmt::UnresolvedLookupExprClass:
157  case Stmt::UnaryTypeTraitExprClass:
158  case Stmt::BinaryTypeTraitExprClass:
159  case Stmt::ArrayTypeTraitExprClass:
160  case Stmt::ExpressionTraitExprClass:
161  case Stmt::DependentScopeDeclRefExprClass:
162  case Stmt::CXXBindTemporaryExprClass:
163  case Stmt::ExprWithCleanupsClass:
164  case Stmt::CXXUnresolvedConstructExprClass:
165  case Stmt::CXXDependentScopeMemberExprClass:
166  case Stmt::UnresolvedMemberExprClass:
167  case Stmt::CXXNoexceptExprClass:
168  case Stmt::ObjCStringLiteralClass:
169  case Stmt::ObjCEncodeExprClass:
170  case Stmt::ObjCSelectorExprClass:
171  case Stmt::ObjCProtocolExprClass:
172  case Stmt::ObjCIsaExprClass:
173  case Stmt::ObjCIndirectCopyRestoreExprClass:
174  case Stmt::ObjCBridgedCastExprClass:
175  case Stmt::ShuffleVectorExprClass:
176  case Stmt::BlockExprClass:
177  case Stmt::OpaqueValueExprClass:
178  case Stmt::PackExpansionExprClass:
179  case Stmt::SizeOfPackExprClass:
180  case Stmt::AsTypeExprClass:
181    K = CXCursor_UnexposedExpr;
182    break;
183
184  case Stmt::DeclRefExprClass:
185  case Stmt::BlockDeclRefExprClass:
186  case Stmt::SubstNonTypeTemplateParmExprClass:
187  case Stmt::SubstNonTypeTemplateParmPackExprClass:
188    // FIXME: UnresolvedLookupExpr?
189    // FIXME: DependentScopeDeclRefExpr?
190    K = CXCursor_DeclRefExpr;
191    break;
192
193  case Stmt::MemberExprClass:
194  case Stmt::ObjCIvarRefExprClass:
195  case Stmt::ObjCPropertyRefExprClass:
196    // FIXME: UnresolvedMemberExpr?
197    // FIXME: CXXDependentScopeMemberExpr?
198    K = CXCursor_MemberRefExpr;
199    break;
200
201  case Stmt::CallExprClass:
202  case Stmt::CXXOperatorCallExprClass:
203  case Stmt::CXXMemberCallExprClass:
204  case Stmt::CUDAKernelCallExprClass:
205  case Stmt::CXXConstructExprClass:
206  case Stmt::CXXTemporaryObjectExprClass:
207    // FIXME: CXXUnresolvedConstructExpr
208    K = CXCursor_CallExpr;
209    break;
210
211  case Stmt::ObjCMessageExprClass:
212    K = CXCursor_ObjCMessageExpr;
213    break;
214  }
215
216  CXCursor C = { K, { Parent, S, TU } };
217  return C;
218}
219
220CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *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_ObjCSuperClassRef, { Super, RawLoc, TU } };
226  return C;
227}
228
229std::pair<ObjCInterfaceDecl *, SourceLocation>
230cxcursor::getCursorObjCSuperClassRef(CXCursor C) {
231  assert(C.kind == CXCursor_ObjCSuperClassRef);
232  return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]),
233           SourceLocation::getFromRawEncoding(
234                                      reinterpret_cast<uintptr_t>(C.data[1])));
235}
236
237CXCursor cxcursor::MakeCursorObjCProtocolRef(ObjCProtocolDecl *Super,
238                                             SourceLocation Loc,
239                                             CXTranslationUnit TU) {
240  assert(Super && TU && "Invalid arguments!");
241  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
242  CXCursor C = { CXCursor_ObjCProtocolRef, { Super, RawLoc, TU } };
243  return C;
244}
245
246std::pair<ObjCProtocolDecl *, SourceLocation>
247cxcursor::getCursorObjCProtocolRef(CXCursor C) {
248  assert(C.kind == CXCursor_ObjCProtocolRef);
249  return std::make_pair(static_cast<ObjCProtocolDecl *>(C.data[0]),
250           SourceLocation::getFromRawEncoding(
251                                      reinterpret_cast<uintptr_t>(C.data[1])));
252}
253
254CXCursor cxcursor::MakeCursorObjCClassRef(ObjCInterfaceDecl *Class,
255                                          SourceLocation Loc,
256                                          CXTranslationUnit TU) {
257  // 'Class' can be null for invalid code.
258  if (!Class)
259    return MakeCXCursorInvalid(CXCursor_InvalidCode);
260  assert(TU && "Invalid arguments!");
261  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
262  CXCursor C = { CXCursor_ObjCClassRef, { Class, RawLoc, TU } };
263  return C;
264}
265
266std::pair<ObjCInterfaceDecl *, SourceLocation>
267cxcursor::getCursorObjCClassRef(CXCursor C) {
268  assert(C.kind == CXCursor_ObjCClassRef);
269  return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]),
270           SourceLocation::getFromRawEncoding(
271                                      reinterpret_cast<uintptr_t>(C.data[1])));
272}
273
274CXCursor cxcursor::MakeCursorTypeRef(TypeDecl *Type, SourceLocation Loc,
275                                     CXTranslationUnit TU) {
276  assert(Type && TU && "Invalid arguments!");
277  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
278  CXCursor C = { CXCursor_TypeRef, { Type, RawLoc, TU } };
279  return C;
280}
281
282std::pair<TypeDecl *, SourceLocation>
283cxcursor::getCursorTypeRef(CXCursor C) {
284  assert(C.kind == CXCursor_TypeRef);
285  return std::make_pair(static_cast<TypeDecl *>(C.data[0]),
286           SourceLocation::getFromRawEncoding(
287                                      reinterpret_cast<uintptr_t>(C.data[1])));
288}
289
290CXCursor cxcursor::MakeCursorTemplateRef(TemplateDecl *Template,
291                                         SourceLocation Loc,
292                                         CXTranslationUnit TU) {
293  assert(Template && TU && "Invalid arguments!");
294  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
295  CXCursor C = { CXCursor_TemplateRef, { Template, RawLoc, TU } };
296  return C;
297}
298
299std::pair<TemplateDecl *, SourceLocation>
300cxcursor::getCursorTemplateRef(CXCursor C) {
301  assert(C.kind == CXCursor_TemplateRef);
302  return std::make_pair(static_cast<TemplateDecl *>(C.data[0]),
303                        SourceLocation::getFromRawEncoding(
304                                       reinterpret_cast<uintptr_t>(C.data[1])));
305}
306
307CXCursor cxcursor::MakeCursorNamespaceRef(NamedDecl *NS, SourceLocation Loc,
308                                          CXTranslationUnit TU) {
309
310  assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU &&
311         "Invalid arguments!");
312  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
313  CXCursor C = { CXCursor_NamespaceRef, { NS, RawLoc, TU } };
314  return C;
315}
316
317std::pair<NamedDecl *, SourceLocation>
318cxcursor::getCursorNamespaceRef(CXCursor C) {
319  assert(C.kind == CXCursor_NamespaceRef);
320  return std::make_pair(static_cast<NamedDecl *>(C.data[0]),
321                        SourceLocation::getFromRawEncoding(
322                                       reinterpret_cast<uintptr_t>(C.data[1])));
323}
324
325CXCursor cxcursor::MakeCursorMemberRef(FieldDecl *Field, SourceLocation Loc,
326                                       CXTranslationUnit TU) {
327
328  assert(Field && TU && "Invalid arguments!");
329  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
330  CXCursor C = { CXCursor_MemberRef, { Field, RawLoc, TU } };
331  return C;
332}
333
334std::pair<FieldDecl *, SourceLocation>
335cxcursor::getCursorMemberRef(CXCursor C) {
336  assert(C.kind == CXCursor_MemberRef);
337  return std::make_pair(static_cast<FieldDecl *>(C.data[0]),
338                        SourceLocation::getFromRawEncoding(
339                                       reinterpret_cast<uintptr_t>(C.data[1])));
340}
341
342CXCursor cxcursor::MakeCursorCXXBaseSpecifier(CXXBaseSpecifier *B,
343                                              CXTranslationUnit TU){
344  CXCursor C = { CXCursor_CXXBaseSpecifier, { B, 0, TU } };
345  return C;
346}
347
348CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) {
349  assert(C.kind == CXCursor_CXXBaseSpecifier);
350  return static_cast<CXXBaseSpecifier*>(C.data[0]);
351}
352
353CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range,
354                                                    CXTranslationUnit TU) {
355  CXCursor C = { CXCursor_PreprocessingDirective,
356                 { reinterpret_cast<void *>(Range.getBegin().getRawEncoding()),
357                   reinterpret_cast<void *>(Range.getEnd().getRawEncoding()),
358                   TU }
359               };
360  return C;
361}
362
363SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) {
364  assert(C.kind == CXCursor_PreprocessingDirective);
365  return SourceRange(SourceLocation::getFromRawEncoding(
366                                      reinterpret_cast<uintptr_t> (C.data[0])),
367                     SourceLocation::getFromRawEncoding(
368                                      reinterpret_cast<uintptr_t> (C.data[1])));
369}
370
371CXCursor cxcursor::MakeMacroDefinitionCursor(MacroDefinition *MI,
372                                             CXTranslationUnit TU) {
373  CXCursor C = { CXCursor_MacroDefinition, { MI, 0, TU } };
374  return C;
375}
376
377MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) {
378  assert(C.kind == CXCursor_MacroDefinition);
379  return static_cast<MacroDefinition *>(C.data[0]);
380}
381
382CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI,
383                                            CXTranslationUnit TU) {
384  CXCursor C = { CXCursor_MacroExpansion, { MI, 0, TU } };
385  return C;
386}
387
388MacroExpansion *cxcursor::getCursorMacroExpansion(CXCursor C) {
389  assert(C.kind == CXCursor_MacroExpansion);
390  return static_cast<MacroExpansion *>(C.data[0]);
391}
392
393CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID,
394                                                CXTranslationUnit TU) {
395  CXCursor C = { CXCursor_InclusionDirective, { ID, 0, TU } };
396  return C;
397}
398
399InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) {
400  assert(C.kind == CXCursor_InclusionDirective);
401  return static_cast<InclusionDirective *>(C.data[0]);
402}
403
404CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc,
405                                      CXTranslationUnit TU) {
406
407  assert(Label && TU && "Invalid arguments!");
408  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
409  CXCursor C = { CXCursor_LabelRef, { Label, RawLoc, TU } };
410  return C;
411}
412
413std::pair<LabelStmt*, SourceLocation>
414cxcursor::getCursorLabelRef(CXCursor C) {
415  assert(C.kind == CXCursor_LabelRef);
416  return std::make_pair(static_cast<LabelStmt *>(C.data[0]),
417                        SourceLocation::getFromRawEncoding(
418                                       reinterpret_cast<uintptr_t>(C.data[1])));
419}
420
421CXCursor cxcursor::MakeCursorOverloadedDeclRef(OverloadExpr *E,
422                                               CXTranslationUnit TU) {
423  assert(E && TU && "Invalid arguments!");
424  OverloadedDeclRefStorage Storage(E);
425  void *RawLoc = reinterpret_cast<void *>(E->getNameLoc().getRawEncoding());
426  CXCursor C = {
427                 CXCursor_OverloadedDeclRef,
428                 { Storage.getOpaqueValue(), RawLoc, TU }
429               };
430  return C;
431}
432
433CXCursor cxcursor::MakeCursorOverloadedDeclRef(Decl *D,
434                                               SourceLocation Loc,
435                                               CXTranslationUnit TU) {
436  assert(D && TU && "Invalid arguments!");
437  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
438  OverloadedDeclRefStorage Storage(D);
439  CXCursor C = {
440    CXCursor_OverloadedDeclRef,
441    { Storage.getOpaqueValue(), RawLoc, TU }
442  };
443  return C;
444}
445
446CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name,
447                                               SourceLocation Loc,
448                                               CXTranslationUnit TU) {
449  assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!");
450  void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding());
451  OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate());
452  CXCursor C = {
453    CXCursor_OverloadedDeclRef,
454    { Storage.getOpaqueValue(), RawLoc, TU }
455  };
456  return C;
457}
458
459std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation>
460cxcursor::getCursorOverloadedDeclRef(CXCursor C) {
461  assert(C.kind == CXCursor_OverloadedDeclRef);
462  return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(C.data[0]),
463                        SourceLocation::getFromRawEncoding(
464                                       reinterpret_cast<uintptr_t>(C.data[1])));
465}
466
467Decl *cxcursor::getCursorDecl(CXCursor Cursor) {
468  return (Decl *)Cursor.data[0];
469}
470
471Expr *cxcursor::getCursorExpr(CXCursor Cursor) {
472  return dyn_cast_or_null<Expr>(getCursorStmt(Cursor));
473}
474
475Stmt *cxcursor::getCursorStmt(CXCursor Cursor) {
476  if (Cursor.kind == CXCursor_ObjCSuperClassRef ||
477      Cursor.kind == CXCursor_ObjCProtocolRef ||
478      Cursor.kind == CXCursor_ObjCClassRef)
479    return 0;
480
481  return (Stmt *)Cursor.data[1];
482}
483
484Attr *cxcursor::getCursorAttr(CXCursor Cursor) {
485  return (Attr *)Cursor.data[1];
486}
487
488Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) {
489  return (Decl *)Cursor.data[0];
490}
491
492ASTContext &cxcursor::getCursorContext(CXCursor Cursor) {
493  return getCursorASTUnit(Cursor)->getASTContext();
494}
495
496ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) {
497  return static_cast<ASTUnit *>(static_cast<CXTranslationUnit>(Cursor.data[2])
498                                  ->TUData);
499}
500
501CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) {
502  return static_cast<CXTranslationUnit>(Cursor.data[2]);
503}
504
505bool cxcursor::operator==(CXCursor X, CXCursor Y) {
506  return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] &&
507         X.data[2] == Y.data[2];
508}
509
510// FIXME: Remove once we can model DeclGroups and their appropriate ranges
511// properly in the ASTs.
512bool cxcursor::isFirstInDeclGroup(CXCursor C) {
513  assert(clang_isDeclaration(C.kind));
514  return ((uintptr_t) (C.data[1])) != 0;
515}
516
517//===----------------------------------------------------------------------===//
518// CXCursorSet.
519//===----------------------------------------------------------------------===//
520
521typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl;
522
523static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) {
524  return (CXCursorSet) setImpl;
525}
526static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) {
527  return (CXCursorSet_Impl*) set;
528}
529namespace llvm {
530template<> struct DenseMapInfo<CXCursor> {
531public:
532  static inline CXCursor getEmptyKey() {
533    return MakeCXCursorInvalid(CXCursor_InvalidFile);
534  }
535  static inline CXCursor getTombstoneKey() {
536    return MakeCXCursorInvalid(CXCursor_NoDeclFound);
537  }
538  static inline unsigned getHashValue(const CXCursor &cursor) {
539    return llvm::DenseMapInfo<std::pair<void*,void*> >
540      ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1]));
541  }
542  static inline bool isEqual(const CXCursor &x, const CXCursor &y) {
543    return x.kind == y.kind &&
544           x.data[0] == y.data[0] &&
545           x.data[1] == y.data[1];
546  }
547};
548}
549
550extern "C" {
551CXCursorSet clang_createCXCursorSet() {
552  return packCXCursorSet(new CXCursorSet_Impl());
553}
554
555void clang_disposeCXCursorSet(CXCursorSet set) {
556  delete unpackCXCursorSet(set);
557}
558
559unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) {
560  CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
561  if (!setImpl)
562    return 0;
563  return setImpl->find(cursor) == setImpl->end();
564}
565
566unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) {
567  // Do not insert invalid cursors into the set.
568  if (cursor.kind >= CXCursor_FirstInvalid &&
569      cursor.kind <= CXCursor_LastInvalid)
570    return 1;
571
572  CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
573  if (!setImpl)
574    return 1;
575  unsigned &entry = (*setImpl)[cursor];
576  unsigned flag = entry == 0 ? 1 : 0;
577  entry = 1;
578  return flag;
579}
580} // end: extern "C"
581