1 //===- CXCursor.cpp - Routines for manipulating CXCursors -----------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file defines routines for manipulating CXCursors. It should be the
10 // only file that has internal knowledge of the encoding of the data in
11 // CXCursor.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "CXCursor.h"
16 #include "CXString.h"
17 #include "CXTranslationUnit.h"
18 #include "CXType.h"
19 #include "clang-c/Index.h"
20 #include "clang/AST/Attr.h"
21 #include "clang/AST/Decl.h"
22 #include "clang/AST/DeclCXX.h"
23 #include "clang/AST/DeclObjC.h"
24 #include "clang/AST/DeclTemplate.h"
25 #include "clang/AST/Expr.h"
26 #include "clang/AST/ExprCXX.h"
27 #include "clang/AST/ExprObjC.h"
28 #include "clang/Frontend/ASTUnit.h"
29 #include "llvm/Support/ErrorHandling.h"
30 
31 using namespace clang;
32 using namespace cxcursor;
33 
MakeCXCursorInvalid(CXCursorKind K,CXTranslationUnit TU)34 CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K, CXTranslationUnit TU) {
35   assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid);
36   CXCursor C = {K, 0, {nullptr, nullptr, TU}};
37   return C;
38 }
39 
GetCursorKind(const Attr * A)40 static CXCursorKind GetCursorKind(const Attr *A) {
41   assert(A && "Invalid arguments!");
42   switch (A->getKind()) {
43   default:
44     break;
45   case attr::IBAction:
46     return CXCursor_IBActionAttr;
47   case attr::IBOutlet:
48     return CXCursor_IBOutletAttr;
49   case attr::IBOutletCollection:
50     return CXCursor_IBOutletCollectionAttr;
51   case attr::Final:
52     return CXCursor_CXXFinalAttr;
53   case attr::Override:
54     return CXCursor_CXXOverrideAttr;
55   case attr::Annotate:
56     return CXCursor_AnnotateAttr;
57   case attr::AsmLabel:
58     return CXCursor_AsmLabelAttr;
59   case attr::Packed:
60     return CXCursor_PackedAttr;
61   case attr::Pure:
62     return CXCursor_PureAttr;
63   case attr::Const:
64     return CXCursor_ConstAttr;
65   case attr::NoDuplicate:
66     return CXCursor_NoDuplicateAttr;
67   case attr::CUDAConstant:
68     return CXCursor_CUDAConstantAttr;
69   case attr::CUDADevice:
70     return CXCursor_CUDADeviceAttr;
71   case attr::CUDAGlobal:
72     return CXCursor_CUDAGlobalAttr;
73   case attr::CUDAHost:
74     return CXCursor_CUDAHostAttr;
75   case attr::CUDAShared:
76     return CXCursor_CUDASharedAttr;
77   case attr::Visibility:
78     return CXCursor_VisibilityAttr;
79   case attr::DLLExport:
80     return CXCursor_DLLExport;
81   case attr::DLLImport:
82     return CXCursor_DLLImport;
83   case attr::NSReturnsRetained:
84     return CXCursor_NSReturnsRetained;
85   case attr::NSReturnsNotRetained:
86     return CXCursor_NSReturnsNotRetained;
87   case attr::NSReturnsAutoreleased:
88     return CXCursor_NSReturnsAutoreleased;
89   case attr::NSConsumesSelf:
90     return CXCursor_NSConsumesSelf;
91   case attr::NSConsumed:
92     return CXCursor_NSConsumed;
93   case attr::ObjCException:
94     return CXCursor_ObjCException;
95   case attr::ObjCNSObject:
96     return CXCursor_ObjCNSObject;
97   case attr::ObjCIndependentClass:
98     return CXCursor_ObjCIndependentClass;
99   case attr::ObjCPreciseLifetime:
100     return CXCursor_ObjCPreciseLifetime;
101   case attr::ObjCReturnsInnerPointer:
102     return CXCursor_ObjCReturnsInnerPointer;
103   case attr::ObjCRequiresSuper:
104     return CXCursor_ObjCRequiresSuper;
105   case attr::ObjCRootClass:
106     return CXCursor_ObjCRootClass;
107   case attr::ObjCSubclassingRestricted:
108     return CXCursor_ObjCSubclassingRestricted;
109   case attr::ObjCExplicitProtocolImpl:
110     return CXCursor_ObjCExplicitProtocolImpl;
111   case attr::ObjCDesignatedInitializer:
112     return CXCursor_ObjCDesignatedInitializer;
113   case attr::ObjCRuntimeVisible:
114     return CXCursor_ObjCRuntimeVisible;
115   case attr::ObjCBoxable:
116     return CXCursor_ObjCBoxable;
117   case attr::FlagEnum:
118     return CXCursor_FlagEnum;
119   case attr::Convergent:
120     return CXCursor_ConvergentAttr;
121   case attr::WarnUnused:
122     return CXCursor_WarnUnusedAttr;
123   case attr::WarnUnusedResult:
124     return CXCursor_WarnUnusedResultAttr;
125   case attr::Aligned:
126     return CXCursor_AlignedAttr;
127   }
128 
129   return CXCursor_UnexposedAttr;
130 }
131 
MakeCXCursor(const Attr * A,const Decl * Parent,CXTranslationUnit TU)132 CXCursor cxcursor::MakeCXCursor(const Attr *A, const Decl *Parent,
133                                 CXTranslationUnit TU) {
134   assert(A && Parent && TU && "Invalid arguments!");
135   CXCursor C = {GetCursorKind(A), 0, {Parent, A, TU}};
136   return C;
137 }
138 
MakeCXCursor(const Decl * D,CXTranslationUnit TU,SourceRange RegionOfInterest,bool FirstInDeclGroup)139 CXCursor cxcursor::MakeCXCursor(const Decl *D, CXTranslationUnit TU,
140                                 SourceRange RegionOfInterest,
141                                 bool FirstInDeclGroup) {
142   assert(D && TU && "Invalid arguments!");
143 
144   CXCursorKind K = getCursorKindForDecl(D);
145 
146   if (K == CXCursor_ObjCClassMethodDecl ||
147       K == CXCursor_ObjCInstanceMethodDecl) {
148     int SelectorIdIndex = -1;
149     // Check if cursor points to a selector id.
150     if (RegionOfInterest.isValid() &&
151         RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
152       SmallVector<SourceLocation, 16> SelLocs;
153       cast<ObjCMethodDecl>(D)->getSelectorLocs(SelLocs);
154       SmallVectorImpl<SourceLocation>::iterator I =
155           llvm::find(SelLocs, RegionOfInterest.getBegin());
156       if (I != SelLocs.end())
157         SelectorIdIndex = I - SelLocs.begin();
158     }
159     CXCursor C = {K,
160                   SelectorIdIndex,
161                   {D, (void *)(intptr_t)(FirstInDeclGroup ? 1 : 0), TU}};
162     return C;
163   }
164 
165   CXCursor C = {K, 0, {D, (void *)(intptr_t)(FirstInDeclGroup ? 1 : 0), TU}};
166   return C;
167 }
168 
MakeCXCursor(const Stmt * S,const Decl * Parent,CXTranslationUnit TU,SourceRange RegionOfInterest)169 CXCursor cxcursor::MakeCXCursor(const Stmt *S, const Decl *Parent,
170                                 CXTranslationUnit TU,
171                                 SourceRange RegionOfInterest) {
172   assert(S && TU && "Invalid arguments!");
173   CXCursorKind K = CXCursor_NotImplemented;
174 
175   switch (S->getStmtClass()) {
176   case Stmt::NoStmtClass:
177     break;
178 
179   case Stmt::CaseStmtClass:
180     K = CXCursor_CaseStmt;
181     break;
182 
183   case Stmt::DefaultStmtClass:
184     K = CXCursor_DefaultStmt;
185     break;
186 
187   case Stmt::IfStmtClass:
188     K = CXCursor_IfStmt;
189     break;
190 
191   case Stmt::SwitchStmtClass:
192     K = CXCursor_SwitchStmt;
193     break;
194 
195   case Stmt::WhileStmtClass:
196     K = CXCursor_WhileStmt;
197     break;
198 
199   case Stmt::DoStmtClass:
200     K = CXCursor_DoStmt;
201     break;
202 
203   case Stmt::ForStmtClass:
204     K = CXCursor_ForStmt;
205     break;
206 
207   case Stmt::GotoStmtClass:
208     K = CXCursor_GotoStmt;
209     break;
210 
211   case Stmt::IndirectGotoStmtClass:
212     K = CXCursor_IndirectGotoStmt;
213     break;
214 
215   case Stmt::ContinueStmtClass:
216     K = CXCursor_ContinueStmt;
217     break;
218 
219   case Stmt::BreakStmtClass:
220     K = CXCursor_BreakStmt;
221     break;
222 
223   case Stmt::ReturnStmtClass:
224     K = CXCursor_ReturnStmt;
225     break;
226 
227   case Stmt::GCCAsmStmtClass:
228     K = CXCursor_GCCAsmStmt;
229     break;
230 
231   case Stmt::MSAsmStmtClass:
232     K = CXCursor_MSAsmStmt;
233     break;
234 
235   case Stmt::ObjCAtTryStmtClass:
236     K = CXCursor_ObjCAtTryStmt;
237     break;
238 
239   case Stmt::ObjCAtCatchStmtClass:
240     K = CXCursor_ObjCAtCatchStmt;
241     break;
242 
243   case Stmt::ObjCAtFinallyStmtClass:
244     K = CXCursor_ObjCAtFinallyStmt;
245     break;
246 
247   case Stmt::ObjCAtThrowStmtClass:
248     K = CXCursor_ObjCAtThrowStmt;
249     break;
250 
251   case Stmt::ObjCAtSynchronizedStmtClass:
252     K = CXCursor_ObjCAtSynchronizedStmt;
253     break;
254 
255   case Stmt::ObjCAutoreleasePoolStmtClass:
256     K = CXCursor_ObjCAutoreleasePoolStmt;
257     break;
258 
259   case Stmt::ObjCForCollectionStmtClass:
260     K = CXCursor_ObjCForCollectionStmt;
261     break;
262 
263   case Stmt::CXXCatchStmtClass:
264     K = CXCursor_CXXCatchStmt;
265     break;
266 
267   case Stmt::CXXTryStmtClass:
268     K = CXCursor_CXXTryStmt;
269     break;
270 
271   case Stmt::CXXForRangeStmtClass:
272     K = CXCursor_CXXForRangeStmt;
273     break;
274 
275   case Stmt::SEHTryStmtClass:
276     K = CXCursor_SEHTryStmt;
277     break;
278 
279   case Stmt::SEHExceptStmtClass:
280     K = CXCursor_SEHExceptStmt;
281     break;
282 
283   case Stmt::SEHFinallyStmtClass:
284     K = CXCursor_SEHFinallyStmt;
285     break;
286 
287   case Stmt::SEHLeaveStmtClass:
288     K = CXCursor_SEHLeaveStmt;
289     break;
290 
291   case Stmt::CoroutineBodyStmtClass:
292   case Stmt::CoreturnStmtClass:
293     K = CXCursor_UnexposedStmt;
294     break;
295 
296   case Stmt::ArrayTypeTraitExprClass:
297   case Stmt::AsTypeExprClass:
298   case Stmt::AtomicExprClass:
299   case Stmt::BinaryConditionalOperatorClass:
300   case Stmt::TypeTraitExprClass:
301   case Stmt::CoawaitExprClass:
302   case Stmt::DependentCoawaitExprClass:
303   case Stmt::CoyieldExprClass:
304   case Stmt::CXXBindTemporaryExprClass:
305   case Stmt::CXXDefaultArgExprClass:
306   case Stmt::CXXDefaultInitExprClass:
307   case Stmt::CXXFoldExprClass:
308   case Stmt::CXXRewrittenBinaryOperatorClass:
309   case Stmt::CXXStdInitializerListExprClass:
310   case Stmt::CXXScalarValueInitExprClass:
311   case Stmt::CXXUuidofExprClass:
312   case Stmt::ChooseExprClass:
313   case Stmt::DesignatedInitExprClass:
314   case Stmt::DesignatedInitUpdateExprClass:
315   case Stmt::ArrayInitLoopExprClass:
316   case Stmt::ArrayInitIndexExprClass:
317   case Stmt::ExprWithCleanupsClass:
318   case Stmt::ExpressionTraitExprClass:
319   case Stmt::ExtVectorElementExprClass:
320   case Stmt::ImplicitCastExprClass:
321   case Stmt::ImplicitValueInitExprClass:
322   case Stmt::NoInitExprClass:
323   case Stmt::MaterializeTemporaryExprClass:
324   case Stmt::ObjCIndirectCopyRestoreExprClass:
325   case Stmt::OffsetOfExprClass:
326   case Stmt::ParenListExprClass:
327   case Stmt::PredefinedExprClass:
328   case Stmt::ShuffleVectorExprClass:
329   case Stmt::SourceLocExprClass:
330   case Stmt::ConvertVectorExprClass:
331   case Stmt::VAArgExprClass:
332   case Stmt::ObjCArrayLiteralClass:
333   case Stmt::ObjCDictionaryLiteralClass:
334   case Stmt::ObjCBoxedExprClass:
335   case Stmt::ObjCSubscriptRefExprClass:
336   case Stmt::RecoveryExprClass:
337   case Stmt::SYCLUniqueStableNameExprClass:
338     K = CXCursor_UnexposedExpr;
339     break;
340 
341   case Stmt::OpaqueValueExprClass:
342     if (Expr *Src = cast<OpaqueValueExpr>(S)->getSourceExpr())
343       return MakeCXCursor(Src, Parent, TU, RegionOfInterest);
344     K = CXCursor_UnexposedExpr;
345     break;
346 
347   case Stmt::PseudoObjectExprClass:
348     return MakeCXCursor(cast<PseudoObjectExpr>(S)->getSyntacticForm(), Parent,
349                         TU, RegionOfInterest);
350 
351   case Stmt::CompoundStmtClass:
352     K = CXCursor_CompoundStmt;
353     break;
354 
355   case Stmt::NullStmtClass:
356     K = CXCursor_NullStmt;
357     break;
358 
359   case Stmt::LabelStmtClass:
360     K = CXCursor_LabelStmt;
361     break;
362 
363   case Stmt::AttributedStmtClass:
364     K = CXCursor_UnexposedStmt;
365     break;
366 
367   case Stmt::DeclStmtClass:
368     K = CXCursor_DeclStmt;
369     break;
370 
371   case Stmt::CapturedStmtClass:
372     K = CXCursor_UnexposedStmt;
373     break;
374 
375   case Stmt::IntegerLiteralClass:
376     K = CXCursor_IntegerLiteral;
377     break;
378 
379   case Stmt::FixedPointLiteralClass:
380     K = CXCursor_FixedPointLiteral;
381     break;
382 
383   case Stmt::FloatingLiteralClass:
384     K = CXCursor_FloatingLiteral;
385     break;
386 
387   case Stmt::ImaginaryLiteralClass:
388     K = CXCursor_ImaginaryLiteral;
389     break;
390 
391   case Stmt::StringLiteralClass:
392     K = CXCursor_StringLiteral;
393     break;
394 
395   case Stmt::CharacterLiteralClass:
396     K = CXCursor_CharacterLiteral;
397     break;
398 
399   case Stmt::ConstantExprClass:
400     return MakeCXCursor(cast<ConstantExpr>(S)->getSubExpr(), Parent, TU,
401                         RegionOfInterest);
402 
403   case Stmt::ParenExprClass:
404     K = CXCursor_ParenExpr;
405     break;
406 
407   case Stmt::UnaryOperatorClass:
408     K = CXCursor_UnaryOperator;
409     break;
410 
411   case Stmt::UnaryExprOrTypeTraitExprClass:
412   case Stmt::CXXNoexceptExprClass:
413     K = CXCursor_UnaryExpr;
414     break;
415 
416   case Stmt::MSPropertySubscriptExprClass:
417   case Stmt::ArraySubscriptExprClass:
418     K = CXCursor_ArraySubscriptExpr;
419     break;
420 
421   case Stmt::MatrixSubscriptExprClass:
422     // TODO: add support for MatrixSubscriptExpr.
423     K = CXCursor_UnexposedExpr;
424     break;
425 
426   case Stmt::OMPArraySectionExprClass:
427     K = CXCursor_OMPArraySectionExpr;
428     break;
429 
430   case Stmt::OMPArrayShapingExprClass:
431     K = CXCursor_OMPArrayShapingExpr;
432     break;
433 
434   case Stmt::OMPIteratorExprClass:
435     K = CXCursor_OMPIteratorExpr;
436     break;
437 
438   case Stmt::BinaryOperatorClass:
439     K = CXCursor_BinaryOperator;
440     break;
441 
442   case Stmt::CompoundAssignOperatorClass:
443     K = CXCursor_CompoundAssignOperator;
444     break;
445 
446   case Stmt::ConditionalOperatorClass:
447     K = CXCursor_ConditionalOperator;
448     break;
449 
450   case Stmt::CStyleCastExprClass:
451     K = CXCursor_CStyleCastExpr;
452     break;
453 
454   case Stmt::CompoundLiteralExprClass:
455     K = CXCursor_CompoundLiteralExpr;
456     break;
457 
458   case Stmt::InitListExprClass:
459     K = CXCursor_InitListExpr;
460     break;
461 
462   case Stmt::AddrLabelExprClass:
463     K = CXCursor_AddrLabelExpr;
464     break;
465 
466   case Stmt::StmtExprClass:
467     K = CXCursor_StmtExpr;
468     break;
469 
470   case Stmt::GenericSelectionExprClass:
471     K = CXCursor_GenericSelectionExpr;
472     break;
473 
474   case Stmt::GNUNullExprClass:
475     K = CXCursor_GNUNullExpr;
476     break;
477 
478   case Stmt::CXXStaticCastExprClass:
479     K = CXCursor_CXXStaticCastExpr;
480     break;
481 
482   case Stmt::CXXDynamicCastExprClass:
483     K = CXCursor_CXXDynamicCastExpr;
484     break;
485 
486   case Stmt::CXXReinterpretCastExprClass:
487     K = CXCursor_CXXReinterpretCastExpr;
488     break;
489 
490   case Stmt::CXXConstCastExprClass:
491     K = CXCursor_CXXConstCastExpr;
492     break;
493 
494   case Stmt::CXXFunctionalCastExprClass:
495     K = CXCursor_CXXFunctionalCastExpr;
496     break;
497 
498   case Stmt::CXXAddrspaceCastExprClass:
499     K = CXCursor_CXXAddrspaceCastExpr;
500     break;
501 
502   case Stmt::CXXTypeidExprClass:
503     K = CXCursor_CXXTypeidExpr;
504     break;
505 
506   case Stmt::CXXBoolLiteralExprClass:
507     K = CXCursor_CXXBoolLiteralExpr;
508     break;
509 
510   case Stmt::CXXNullPtrLiteralExprClass:
511     K = CXCursor_CXXNullPtrLiteralExpr;
512     break;
513 
514   case Stmt::CXXThisExprClass:
515     K = CXCursor_CXXThisExpr;
516     break;
517 
518   case Stmt::CXXThrowExprClass:
519     K = CXCursor_CXXThrowExpr;
520     break;
521 
522   case Stmt::CXXNewExprClass:
523     K = CXCursor_CXXNewExpr;
524     break;
525 
526   case Stmt::CXXDeleteExprClass:
527     K = CXCursor_CXXDeleteExpr;
528     break;
529 
530   case Stmt::ObjCStringLiteralClass:
531     K = CXCursor_ObjCStringLiteral;
532     break;
533 
534   case Stmt::ObjCEncodeExprClass:
535     K = CXCursor_ObjCEncodeExpr;
536     break;
537 
538   case Stmt::ObjCSelectorExprClass:
539     K = CXCursor_ObjCSelectorExpr;
540     break;
541 
542   case Stmt::ObjCProtocolExprClass:
543     K = CXCursor_ObjCProtocolExpr;
544     break;
545 
546   case Stmt::ObjCBoolLiteralExprClass:
547     K = CXCursor_ObjCBoolLiteralExpr;
548     break;
549 
550   case Stmt::ObjCAvailabilityCheckExprClass:
551     K = CXCursor_ObjCAvailabilityCheckExpr;
552     break;
553 
554   case Stmt::ObjCBridgedCastExprClass:
555     K = CXCursor_ObjCBridgedCastExpr;
556     break;
557 
558   case Stmt::BlockExprClass:
559     K = CXCursor_BlockExpr;
560     break;
561 
562   case Stmt::PackExpansionExprClass:
563     K = CXCursor_PackExpansionExpr;
564     break;
565 
566   case Stmt::SizeOfPackExprClass:
567     K = CXCursor_SizeOfPackExpr;
568     break;
569 
570   case Stmt::DeclRefExprClass:
571     if (const ImplicitParamDecl *IPD = dyn_cast_or_null<ImplicitParamDecl>(
572             cast<DeclRefExpr>(S)->getDecl())) {
573       if (const ObjCMethodDecl *MD =
574               dyn_cast<ObjCMethodDecl>(IPD->getDeclContext())) {
575         if (MD->getSelfDecl() == IPD) {
576           K = CXCursor_ObjCSelfExpr;
577           break;
578         }
579       }
580     }
581 
582     K = CXCursor_DeclRefExpr;
583     break;
584 
585   case Stmt::DependentScopeDeclRefExprClass:
586   case Stmt::SubstNonTypeTemplateParmExprClass:
587   case Stmt::SubstNonTypeTemplateParmPackExprClass:
588   case Stmt::FunctionParmPackExprClass:
589   case Stmt::UnresolvedLookupExprClass:
590   case Stmt::TypoExprClass: // A typo could actually be a DeclRef or a MemberRef
591     K = CXCursor_DeclRefExpr;
592     break;
593 
594   case Stmt::CXXDependentScopeMemberExprClass:
595   case Stmt::CXXPseudoDestructorExprClass:
596   case Stmt::MemberExprClass:
597   case Stmt::MSPropertyRefExprClass:
598   case Stmt::ObjCIsaExprClass:
599   case Stmt::ObjCIvarRefExprClass:
600   case Stmt::ObjCPropertyRefExprClass:
601   case Stmt::UnresolvedMemberExprClass:
602     K = CXCursor_MemberRefExpr;
603     break;
604 
605   case Stmt::CallExprClass:
606   case Stmt::CXXOperatorCallExprClass:
607   case Stmt::CXXMemberCallExprClass:
608   case Stmt::CUDAKernelCallExprClass:
609   case Stmt::CXXConstructExprClass:
610   case Stmt::CXXInheritedCtorInitExprClass:
611   case Stmt::CXXTemporaryObjectExprClass:
612   case Stmt::CXXUnresolvedConstructExprClass:
613   case Stmt::UserDefinedLiteralClass:
614     K = CXCursor_CallExpr;
615     break;
616 
617   case Stmt::LambdaExprClass:
618     K = CXCursor_LambdaExpr;
619     break;
620 
621   case Stmt::ObjCMessageExprClass: {
622     K = CXCursor_ObjCMessageExpr;
623     int SelectorIdIndex = -1;
624     // Check if cursor points to a selector id.
625     if (RegionOfInterest.isValid() &&
626         RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
627       SmallVector<SourceLocation, 16> SelLocs;
628       cast<ObjCMessageExpr>(S)->getSelectorLocs(SelLocs);
629       SmallVectorImpl<SourceLocation>::iterator I =
630           llvm::find(SelLocs, RegionOfInterest.getBegin());
631       if (I != SelLocs.end())
632         SelectorIdIndex = I - SelLocs.begin();
633     }
634     CXCursor C = {K, 0, {Parent, S, TU}};
635     return getSelectorIdentifierCursor(SelectorIdIndex, C);
636   }
637 
638   case Stmt::ConceptSpecializationExprClass:
639     K = CXCursor_ConceptSpecializationExpr;
640     break;
641 
642   case Stmt::RequiresExprClass:
643     K = CXCursor_RequiresExpr;
644     break;
645 
646   case Stmt::MSDependentExistsStmtClass:
647     K = CXCursor_UnexposedStmt;
648     break;
649   case Stmt::OMPCanonicalLoopClass:
650     K = CXCursor_OMPCanonicalLoop;
651     break;
652   case Stmt::OMPMetaDirectiveClass:
653     K = CXCursor_OMPMetaDirective;
654     break;
655   case Stmt::OMPParallelDirectiveClass:
656     K = CXCursor_OMPParallelDirective;
657     break;
658   case Stmt::OMPSimdDirectiveClass:
659     K = CXCursor_OMPSimdDirective;
660     break;
661   case Stmt::OMPTileDirectiveClass:
662     K = CXCursor_OMPTileDirective;
663     break;
664   case Stmt::OMPUnrollDirectiveClass:
665     K = CXCursor_OMPUnrollDirective;
666     break;
667   case Stmt::OMPForDirectiveClass:
668     K = CXCursor_OMPForDirective;
669     break;
670   case Stmt::OMPForSimdDirectiveClass:
671     K = CXCursor_OMPForSimdDirective;
672     break;
673   case Stmt::OMPSectionsDirectiveClass:
674     K = CXCursor_OMPSectionsDirective;
675     break;
676   case Stmt::OMPSectionDirectiveClass:
677     K = CXCursor_OMPSectionDirective;
678     break;
679   case Stmt::OMPSingleDirectiveClass:
680     K = CXCursor_OMPSingleDirective;
681     break;
682   case Stmt::OMPMasterDirectiveClass:
683     K = CXCursor_OMPMasterDirective;
684     break;
685   case Stmt::OMPCriticalDirectiveClass:
686     K = CXCursor_OMPCriticalDirective;
687     break;
688   case Stmt::OMPParallelForDirectiveClass:
689     K = CXCursor_OMPParallelForDirective;
690     break;
691   case Stmt::OMPParallelForSimdDirectiveClass:
692     K = CXCursor_OMPParallelForSimdDirective;
693     break;
694   case Stmt::OMPParallelMasterDirectiveClass:
695     K = CXCursor_OMPParallelMasterDirective;
696     break;
697   case Stmt::OMPParallelMaskedDirectiveClass:
698     K = CXCursor_OMPParallelMaskedDirective;
699     break;
700   case Stmt::OMPParallelSectionsDirectiveClass:
701     K = CXCursor_OMPParallelSectionsDirective;
702     break;
703   case Stmt::OMPTaskDirectiveClass:
704     K = CXCursor_OMPTaskDirective;
705     break;
706   case Stmt::OMPTaskyieldDirectiveClass:
707     K = CXCursor_OMPTaskyieldDirective;
708     break;
709   case Stmt::OMPBarrierDirectiveClass:
710     K = CXCursor_OMPBarrierDirective;
711     break;
712   case Stmt::OMPTaskwaitDirectiveClass:
713     K = CXCursor_OMPTaskwaitDirective;
714     break;
715   case Stmt::OMPTaskgroupDirectiveClass:
716     K = CXCursor_OMPTaskgroupDirective;
717     break;
718   case Stmt::OMPFlushDirectiveClass:
719     K = CXCursor_OMPFlushDirective;
720     break;
721   case Stmt::OMPDepobjDirectiveClass:
722     K = CXCursor_OMPDepobjDirective;
723     break;
724   case Stmt::OMPScanDirectiveClass:
725     K = CXCursor_OMPScanDirective;
726     break;
727   case Stmt::OMPOrderedDirectiveClass:
728     K = CXCursor_OMPOrderedDirective;
729     break;
730   case Stmt::OMPAtomicDirectiveClass:
731     K = CXCursor_OMPAtomicDirective;
732     break;
733   case Stmt::OMPTargetDirectiveClass:
734     K = CXCursor_OMPTargetDirective;
735     break;
736   case Stmt::OMPTargetDataDirectiveClass:
737     K = CXCursor_OMPTargetDataDirective;
738     break;
739   case Stmt::OMPTargetEnterDataDirectiveClass:
740     K = CXCursor_OMPTargetEnterDataDirective;
741     break;
742   case Stmt::OMPTargetExitDataDirectiveClass:
743     K = CXCursor_OMPTargetExitDataDirective;
744     break;
745   case Stmt::OMPTargetParallelDirectiveClass:
746     K = CXCursor_OMPTargetParallelDirective;
747     break;
748   case Stmt::OMPTargetParallelForDirectiveClass:
749     K = CXCursor_OMPTargetParallelForDirective;
750     break;
751   case Stmt::OMPTargetUpdateDirectiveClass:
752     K = CXCursor_OMPTargetUpdateDirective;
753     break;
754   case Stmt::OMPTeamsDirectiveClass:
755     K = CXCursor_OMPTeamsDirective;
756     break;
757   case Stmt::OMPCancellationPointDirectiveClass:
758     K = CXCursor_OMPCancellationPointDirective;
759     break;
760   case Stmt::OMPCancelDirectiveClass:
761     K = CXCursor_OMPCancelDirective;
762     break;
763   case Stmt::OMPTaskLoopDirectiveClass:
764     K = CXCursor_OMPTaskLoopDirective;
765     break;
766   case Stmt::OMPTaskLoopSimdDirectiveClass:
767     K = CXCursor_OMPTaskLoopSimdDirective;
768     break;
769   case Stmt::OMPMasterTaskLoopDirectiveClass:
770     K = CXCursor_OMPMasterTaskLoopDirective;
771     break;
772   case Stmt::OMPMaskedTaskLoopDirectiveClass:
773     K = CXCursor_OMPMaskedTaskLoopDirective;
774     break;
775   case Stmt::OMPMasterTaskLoopSimdDirectiveClass:
776     K = CXCursor_OMPMasterTaskLoopSimdDirective;
777     break;
778   case Stmt::OMPMaskedTaskLoopSimdDirectiveClass:
779     K = CXCursor_OMPMaskedTaskLoopSimdDirective;
780     break;
781   case Stmt::OMPParallelMasterTaskLoopDirectiveClass:
782     K = CXCursor_OMPParallelMasterTaskLoopDirective;
783     break;
784   case Stmt::OMPParallelMaskedTaskLoopDirectiveClass:
785     K = CXCursor_OMPParallelMaskedTaskLoopDirective;
786     break;
787   case Stmt::OMPParallelMasterTaskLoopSimdDirectiveClass:
788     K = CXCursor_OMPParallelMasterTaskLoopSimdDirective;
789     break;
790   case Stmt::OMPParallelMaskedTaskLoopSimdDirectiveClass:
791     K = CXCursor_OMPParallelMaskedTaskLoopSimdDirective;
792     break;
793   case Stmt::OMPDistributeDirectiveClass:
794     K = CXCursor_OMPDistributeDirective;
795     break;
796   case Stmt::OMPDistributeParallelForDirectiveClass:
797     K = CXCursor_OMPDistributeParallelForDirective;
798     break;
799   case Stmt::OMPDistributeParallelForSimdDirectiveClass:
800     K = CXCursor_OMPDistributeParallelForSimdDirective;
801     break;
802   case Stmt::OMPDistributeSimdDirectiveClass:
803     K = CXCursor_OMPDistributeSimdDirective;
804     break;
805   case Stmt::OMPTargetParallelForSimdDirectiveClass:
806     K = CXCursor_OMPTargetParallelForSimdDirective;
807     break;
808   case Stmt::OMPTargetSimdDirectiveClass:
809     K = CXCursor_OMPTargetSimdDirective;
810     break;
811   case Stmt::OMPTeamsDistributeDirectiveClass:
812     K = CXCursor_OMPTeamsDistributeDirective;
813     break;
814   case Stmt::OMPTeamsDistributeSimdDirectiveClass:
815     K = CXCursor_OMPTeamsDistributeSimdDirective;
816     break;
817   case Stmt::OMPTeamsDistributeParallelForSimdDirectiveClass:
818     K = CXCursor_OMPTeamsDistributeParallelForSimdDirective;
819     break;
820   case Stmt::OMPTeamsDistributeParallelForDirectiveClass:
821     K = CXCursor_OMPTeamsDistributeParallelForDirective;
822     break;
823   case Stmt::OMPTargetTeamsDirectiveClass:
824     K = CXCursor_OMPTargetTeamsDirective;
825     break;
826   case Stmt::OMPTargetTeamsDistributeDirectiveClass:
827     K = CXCursor_OMPTargetTeamsDistributeDirective;
828     break;
829   case Stmt::OMPTargetTeamsDistributeParallelForDirectiveClass:
830     K = CXCursor_OMPTargetTeamsDistributeParallelForDirective;
831     break;
832   case Stmt::OMPTargetTeamsDistributeParallelForSimdDirectiveClass:
833     K = CXCursor_OMPTargetTeamsDistributeParallelForSimdDirective;
834     break;
835   case Stmt::OMPTargetTeamsDistributeSimdDirectiveClass:
836     K = CXCursor_OMPTargetTeamsDistributeSimdDirective;
837     break;
838   case Stmt::OMPInteropDirectiveClass:
839     K = CXCursor_OMPInteropDirective;
840     break;
841   case Stmt::OMPDispatchDirectiveClass:
842     K = CXCursor_OMPDispatchDirective;
843     break;
844   case Stmt::OMPMaskedDirectiveClass:
845     K = CXCursor_OMPMaskedDirective;
846     break;
847   case Stmt::OMPGenericLoopDirectiveClass:
848     K = CXCursor_OMPGenericLoopDirective;
849     break;
850   case Stmt::OMPTeamsGenericLoopDirectiveClass:
851     K = CXCursor_OMPTeamsGenericLoopDirective;
852     break;
853   case Stmt::OMPTargetTeamsGenericLoopDirectiveClass:
854     K = CXCursor_OMPTargetTeamsGenericLoopDirective;
855     break;
856   case Stmt::OMPParallelGenericLoopDirectiveClass:
857     K = CXCursor_OMPParallelGenericLoopDirective;
858     break;
859   case Stmt::OMPTargetParallelGenericLoopDirectiveClass:
860     K = CXCursor_OMPTargetParallelGenericLoopDirective;
861     break;
862   case Stmt::BuiltinBitCastExprClass:
863     K = CXCursor_BuiltinBitCastExpr;
864   }
865 
866   CXCursor C = {K, 0, {Parent, S, TU}};
867   return C;
868 }
869 
MakeCursorObjCSuperClassRef(ObjCInterfaceDecl * Super,SourceLocation Loc,CXTranslationUnit TU)870 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super,
871                                                SourceLocation Loc,
872                                                CXTranslationUnit TU) {
873   assert(Super && TU && "Invalid arguments!");
874   void *RawLoc = Loc.getPtrEncoding();
875   CXCursor C = {CXCursor_ObjCSuperClassRef, 0, {Super, RawLoc, TU}};
876   return C;
877 }
878 
879 std::pair<const ObjCInterfaceDecl *, SourceLocation>
getCursorObjCSuperClassRef(CXCursor C)880 cxcursor::getCursorObjCSuperClassRef(CXCursor C) {
881   assert(C.kind == CXCursor_ObjCSuperClassRef);
882   return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
883                         SourceLocation::getFromPtrEncoding(C.data[1]));
884 }
885 
MakeCursorObjCProtocolRef(const ObjCProtocolDecl * Proto,SourceLocation Loc,CXTranslationUnit TU)886 CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto,
887                                              SourceLocation Loc,
888                                              CXTranslationUnit TU) {
889   assert(Proto && TU && "Invalid arguments!");
890   void *RawLoc = Loc.getPtrEncoding();
891   CXCursor C = {CXCursor_ObjCProtocolRef, 0, {Proto, RawLoc, TU}};
892   return C;
893 }
894 
895 std::pair<const ObjCProtocolDecl *, SourceLocation>
getCursorObjCProtocolRef(CXCursor C)896 cxcursor::getCursorObjCProtocolRef(CXCursor C) {
897   assert(C.kind == CXCursor_ObjCProtocolRef);
898   return std::make_pair(static_cast<const ObjCProtocolDecl *>(C.data[0]),
899                         SourceLocation::getFromPtrEncoding(C.data[1]));
900 }
901 
MakeCursorObjCClassRef(const ObjCInterfaceDecl * Class,SourceLocation Loc,CXTranslationUnit TU)902 CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class,
903                                           SourceLocation Loc,
904                                           CXTranslationUnit TU) {
905   // 'Class' can be null for invalid code.
906   if (!Class)
907     return MakeCXCursorInvalid(CXCursor_InvalidCode);
908   assert(TU && "Invalid arguments!");
909   void *RawLoc = Loc.getPtrEncoding();
910   CXCursor C = {CXCursor_ObjCClassRef, 0, {Class, RawLoc, TU}};
911   return C;
912 }
913 
914 std::pair<const ObjCInterfaceDecl *, SourceLocation>
getCursorObjCClassRef(CXCursor C)915 cxcursor::getCursorObjCClassRef(CXCursor C) {
916   assert(C.kind == CXCursor_ObjCClassRef);
917   return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
918                         SourceLocation::getFromPtrEncoding(C.data[1]));
919 }
920 
MakeCursorTypeRef(const TypeDecl * Type,SourceLocation Loc,CXTranslationUnit TU)921 CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc,
922                                      CXTranslationUnit TU) {
923   assert(Type && TU && "Invalid arguments!");
924   void *RawLoc = Loc.getPtrEncoding();
925   CXCursor C = {CXCursor_TypeRef, 0, {Type, RawLoc, TU}};
926   return C;
927 }
928 
929 std::pair<const TypeDecl *, SourceLocation>
getCursorTypeRef(CXCursor C)930 cxcursor::getCursorTypeRef(CXCursor C) {
931   assert(C.kind == CXCursor_TypeRef);
932   return std::make_pair(static_cast<const TypeDecl *>(C.data[0]),
933                         SourceLocation::getFromPtrEncoding(C.data[1]));
934 }
935 
MakeCursorTemplateRef(const TemplateDecl * Template,SourceLocation Loc,CXTranslationUnit TU)936 CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template,
937                                          SourceLocation Loc,
938                                          CXTranslationUnit TU) {
939   assert(Template && TU && "Invalid arguments!");
940   void *RawLoc = Loc.getPtrEncoding();
941   CXCursor C = {CXCursor_TemplateRef, 0, {Template, RawLoc, TU}};
942   return C;
943 }
944 
945 std::pair<const TemplateDecl *, SourceLocation>
getCursorTemplateRef(CXCursor C)946 cxcursor::getCursorTemplateRef(CXCursor C) {
947   assert(C.kind == CXCursor_TemplateRef);
948   return std::make_pair(static_cast<const TemplateDecl *>(C.data[0]),
949                         SourceLocation::getFromPtrEncoding(C.data[1]));
950 }
951 
MakeCursorNamespaceRef(const NamedDecl * NS,SourceLocation Loc,CXTranslationUnit TU)952 CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS,
953                                           SourceLocation Loc,
954                                           CXTranslationUnit TU) {
955 
956   assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU &&
957          "Invalid arguments!");
958   void *RawLoc = Loc.getPtrEncoding();
959   CXCursor C = {CXCursor_NamespaceRef, 0, {NS, RawLoc, TU}};
960   return C;
961 }
962 
963 std::pair<const NamedDecl *, SourceLocation>
getCursorNamespaceRef(CXCursor C)964 cxcursor::getCursorNamespaceRef(CXCursor C) {
965   assert(C.kind == CXCursor_NamespaceRef);
966   return std::make_pair(static_cast<const NamedDecl *>(C.data[0]),
967                         SourceLocation::getFromPtrEncoding(C.data[1]));
968 }
969 
MakeCursorVariableRef(const VarDecl * Var,SourceLocation Loc,CXTranslationUnit TU)970 CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc,
971                                          CXTranslationUnit TU) {
972 
973   assert(Var && TU && "Invalid arguments!");
974   void *RawLoc = Loc.getPtrEncoding();
975   CXCursor C = {CXCursor_VariableRef, 0, {Var, RawLoc, TU}};
976   return C;
977 }
978 
979 std::pair<const VarDecl *, SourceLocation>
getCursorVariableRef(CXCursor C)980 cxcursor::getCursorVariableRef(CXCursor C) {
981   assert(C.kind == CXCursor_VariableRef);
982   return std::make_pair(static_cast<const VarDecl *>(C.data[0]),
983                         SourceLocation::getFromPtrEncoding(C.data[1]));
984 }
985 
MakeCursorMemberRef(const FieldDecl * Field,SourceLocation Loc,CXTranslationUnit TU)986 CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field,
987                                        SourceLocation Loc,
988                                        CXTranslationUnit TU) {
989 
990   assert(Field && TU && "Invalid arguments!");
991   void *RawLoc = Loc.getPtrEncoding();
992   CXCursor C = {CXCursor_MemberRef, 0, {Field, RawLoc, TU}};
993   return C;
994 }
995 
996 std::pair<const FieldDecl *, SourceLocation>
getCursorMemberRef(CXCursor C)997 cxcursor::getCursorMemberRef(CXCursor C) {
998   assert(C.kind == CXCursor_MemberRef);
999   return std::make_pair(static_cast<const FieldDecl *>(C.data[0]),
1000                         SourceLocation::getFromPtrEncoding(C.data[1]));
1001 }
1002 
MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier * B,CXTranslationUnit TU)1003 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B,
1004                                               CXTranslationUnit TU) {
1005   CXCursor C = {CXCursor_CXXBaseSpecifier, 0, {B, nullptr, TU}};
1006   return C;
1007 }
1008 
getCursorCXXBaseSpecifier(CXCursor C)1009 const CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) {
1010   assert(C.kind == CXCursor_CXXBaseSpecifier);
1011   return static_cast<const CXXBaseSpecifier *>(C.data[0]);
1012 }
1013 
MakePreprocessingDirectiveCursor(SourceRange Range,CXTranslationUnit TU)1014 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range,
1015                                                     CXTranslationUnit TU) {
1016   CXCursor C = {
1017       CXCursor_PreprocessingDirective,
1018       0,
1019       {Range.getBegin().getPtrEncoding(), Range.getEnd().getPtrEncoding(), TU}};
1020   return C;
1021 }
1022 
getCursorPreprocessingDirective(CXCursor C)1023 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) {
1024   assert(C.kind == CXCursor_PreprocessingDirective);
1025   SourceRange Range(SourceLocation::getFromPtrEncoding(C.data[0]),
1026                     SourceLocation::getFromPtrEncoding(C.data[1]));
1027   ASTUnit *TU = getCursorASTUnit(C);
1028   return TU->mapRangeFromPreamble(Range);
1029 }
1030 
MakeMacroDefinitionCursor(const MacroDefinitionRecord * MI,CXTranslationUnit TU)1031 CXCursor cxcursor::MakeMacroDefinitionCursor(const MacroDefinitionRecord *MI,
1032                                              CXTranslationUnit TU) {
1033   CXCursor C = {CXCursor_MacroDefinition, 0, {MI, nullptr, TU}};
1034   return C;
1035 }
1036 
getCursorMacroDefinition(CXCursor C)1037 const MacroDefinitionRecord *cxcursor::getCursorMacroDefinition(CXCursor C) {
1038   assert(C.kind == CXCursor_MacroDefinition);
1039   return static_cast<const MacroDefinitionRecord *>(C.data[0]);
1040 }
1041 
MakeMacroExpansionCursor(MacroExpansion * MI,CXTranslationUnit TU)1042 CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI,
1043                                             CXTranslationUnit TU) {
1044   CXCursor C = {CXCursor_MacroExpansion, 0, {MI, nullptr, TU}};
1045   return C;
1046 }
1047 
MakeMacroExpansionCursor(MacroDefinitionRecord * MI,SourceLocation Loc,CXTranslationUnit TU)1048 CXCursor cxcursor::MakeMacroExpansionCursor(MacroDefinitionRecord *MI,
1049                                             SourceLocation Loc,
1050                                             CXTranslationUnit TU) {
1051   assert(Loc.isValid());
1052   CXCursor C = {CXCursor_MacroExpansion, 0, {MI, Loc.getPtrEncoding(), TU}};
1053   return C;
1054 }
1055 
getName() const1056 const IdentifierInfo *cxcursor::MacroExpansionCursor::getName() const {
1057   if (isPseudo())
1058     return getAsMacroDefinition()->getName();
1059   return getAsMacroExpansion()->getName();
1060 }
1061 const MacroDefinitionRecord *
getDefinition() const1062 cxcursor::MacroExpansionCursor::getDefinition() const {
1063   if (isPseudo())
1064     return getAsMacroDefinition();
1065   return getAsMacroExpansion()->getDefinition();
1066 }
getSourceRange() const1067 SourceRange cxcursor::MacroExpansionCursor::getSourceRange() const {
1068   if (isPseudo())
1069     return getPseudoLoc();
1070   return getAsMacroExpansion()->getSourceRange();
1071 }
1072 
MakeInclusionDirectiveCursor(InclusionDirective * ID,CXTranslationUnit TU)1073 CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID,
1074                                                 CXTranslationUnit TU) {
1075   CXCursor C = {CXCursor_InclusionDirective, 0, {ID, nullptr, TU}};
1076   return C;
1077 }
1078 
getCursorInclusionDirective(CXCursor C)1079 const InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) {
1080   assert(C.kind == CXCursor_InclusionDirective);
1081   return static_cast<const InclusionDirective *>(C.data[0]);
1082 }
1083 
MakeCursorLabelRef(LabelStmt * Label,SourceLocation Loc,CXTranslationUnit TU)1084 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc,
1085                                       CXTranslationUnit TU) {
1086 
1087   assert(Label && TU && "Invalid arguments!");
1088   void *RawLoc = Loc.getPtrEncoding();
1089   CXCursor C = {CXCursor_LabelRef, 0, {Label, RawLoc, TU}};
1090   return C;
1091 }
1092 
1093 std::pair<const LabelStmt *, SourceLocation>
getCursorLabelRef(CXCursor C)1094 cxcursor::getCursorLabelRef(CXCursor C) {
1095   assert(C.kind == CXCursor_LabelRef);
1096   return std::make_pair(static_cast<const LabelStmt *>(C.data[0]),
1097                         SourceLocation::getFromPtrEncoding(C.data[1]));
1098 }
1099 
MakeCursorOverloadedDeclRef(const OverloadExpr * E,CXTranslationUnit TU)1100 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const OverloadExpr *E,
1101                                                CXTranslationUnit TU) {
1102   assert(E && TU && "Invalid arguments!");
1103   OverloadedDeclRefStorage Storage(E);
1104   void *RawLoc = E->getNameLoc().getPtrEncoding();
1105   CXCursor C = {
1106       CXCursor_OverloadedDeclRef, 0, {Storage.getOpaqueValue(), RawLoc, TU}};
1107   return C;
1108 }
1109 
MakeCursorOverloadedDeclRef(const Decl * D,SourceLocation Loc,CXTranslationUnit TU)1110 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const Decl *D,
1111                                                SourceLocation Loc,
1112                                                CXTranslationUnit TU) {
1113   assert(D && TU && "Invalid arguments!");
1114   void *RawLoc = Loc.getPtrEncoding();
1115   OverloadedDeclRefStorage Storage(D);
1116   CXCursor C = {
1117       CXCursor_OverloadedDeclRef, 0, {Storage.getOpaqueValue(), RawLoc, TU}};
1118   return C;
1119 }
1120 
MakeCursorOverloadedDeclRef(TemplateName Name,SourceLocation Loc,CXTranslationUnit TU)1121 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name,
1122                                                SourceLocation Loc,
1123                                                CXTranslationUnit TU) {
1124   assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!");
1125   void *RawLoc = Loc.getPtrEncoding();
1126   OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate());
1127   CXCursor C = {
1128       CXCursor_OverloadedDeclRef, 0, {Storage.getOpaqueValue(), RawLoc, TU}};
1129   return C;
1130 }
1131 
1132 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation>
getCursorOverloadedDeclRef(CXCursor C)1133 cxcursor::getCursorOverloadedDeclRef(CXCursor C) {
1134   assert(C.kind == CXCursor_OverloadedDeclRef);
1135   return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(
1136                             const_cast<void *>(C.data[0])),
1137                         SourceLocation::getFromPtrEncoding(C.data[1]));
1138 }
1139 
getCursorDecl(CXCursor Cursor)1140 const Decl *cxcursor::getCursorDecl(CXCursor Cursor) {
1141   return static_cast<const Decl *>(Cursor.data[0]);
1142 }
1143 
getCursorExpr(CXCursor Cursor)1144 const Expr *cxcursor::getCursorExpr(CXCursor Cursor) {
1145   return dyn_cast_or_null<Expr>(getCursorStmt(Cursor));
1146 }
1147 
getCursorStmt(CXCursor Cursor)1148 const Stmt *cxcursor::getCursorStmt(CXCursor Cursor) {
1149   if (Cursor.kind == CXCursor_ObjCSuperClassRef ||
1150       Cursor.kind == CXCursor_ObjCProtocolRef ||
1151       Cursor.kind == CXCursor_ObjCClassRef)
1152     return nullptr;
1153 
1154   return static_cast<const Stmt *>(Cursor.data[1]);
1155 }
1156 
getCursorAttr(CXCursor Cursor)1157 const Attr *cxcursor::getCursorAttr(CXCursor Cursor) {
1158   return static_cast<const Attr *>(Cursor.data[1]);
1159 }
1160 
getCursorContext(CXCursor Cursor)1161 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) {
1162   return getCursorASTUnit(Cursor)->getASTContext();
1163 }
1164 
getCursorASTUnit(CXCursor Cursor)1165 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) {
1166   CXTranslationUnit TU = getCursorTU(Cursor);
1167   if (!TU)
1168     return nullptr;
1169   return cxtu::getASTUnit(TU);
1170 }
1171 
getCursorTU(CXCursor Cursor)1172 CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) {
1173   return static_cast<CXTranslationUnit>(const_cast<void *>(Cursor.data[2]));
1174 }
1175 
getOverriddenCursors(CXCursor cursor,SmallVectorImpl<CXCursor> & overridden)1176 void cxcursor::getOverriddenCursors(CXCursor cursor,
1177                                     SmallVectorImpl<CXCursor> &overridden) {
1178   assert(clang_isDeclaration(cursor.kind));
1179   const NamedDecl *D = dyn_cast_or_null<NamedDecl>(getCursorDecl(cursor));
1180   if (!D)
1181     return;
1182 
1183   CXTranslationUnit TU = getCursorTU(cursor);
1184   SmallVector<const NamedDecl *, 8> OverDecls;
1185   D->getASTContext().getOverriddenMethods(D, OverDecls);
1186 
1187   for (SmallVectorImpl<const NamedDecl *>::iterator I = OverDecls.begin(),
1188                                                     E = OverDecls.end();
1189        I != E; ++I) {
1190     overridden.push_back(MakeCXCursor(*I, TU));
1191   }
1192 }
1193 
1194 std::pair<int, SourceLocation>
getSelectorIdentifierIndexAndLoc(CXCursor cursor)1195 cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) {
1196   if (cursor.kind == CXCursor_ObjCMessageExpr) {
1197     if (cursor.xdata != -1)
1198       return std::make_pair(cursor.xdata,
1199                             cast<ObjCMessageExpr>(getCursorExpr(cursor))
1200                                 ->getSelectorLoc(cursor.xdata));
1201   } else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
1202              cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
1203     if (cursor.xdata != -1)
1204       return std::make_pair(cursor.xdata,
1205                             cast<ObjCMethodDecl>(getCursorDecl(cursor))
1206                                 ->getSelectorLoc(cursor.xdata));
1207   }
1208 
1209   return std::make_pair(-1, SourceLocation());
1210 }
1211 
getSelectorIdentifierCursor(int SelIdx,CXCursor cursor)1212 CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) {
1213   CXCursor newCursor = cursor;
1214 
1215   if (cursor.kind == CXCursor_ObjCMessageExpr) {
1216     if (SelIdx == -1 ||
1217         unsigned(SelIdx) >=
1218             cast<ObjCMessageExpr>(getCursorExpr(cursor))->getNumSelectorLocs())
1219       newCursor.xdata = -1;
1220     else
1221       newCursor.xdata = SelIdx;
1222   } else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
1223              cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
1224     if (SelIdx == -1 ||
1225         unsigned(SelIdx) >=
1226             cast<ObjCMethodDecl>(getCursorDecl(cursor))->getNumSelectorLocs())
1227       newCursor.xdata = -1;
1228     else
1229       newCursor.xdata = SelIdx;
1230   }
1231 
1232   return newCursor;
1233 }
1234 
getTypeRefCursor(CXCursor cursor)1235 CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) {
1236   if (cursor.kind != CXCursor_CallExpr)
1237     return cursor;
1238 
1239   if (cursor.xdata == 0)
1240     return cursor;
1241 
1242   const Expr *E = getCursorExpr(cursor);
1243   TypeSourceInfo *Type = nullptr;
1244   if (const CXXUnresolvedConstructExpr *UnCtor =
1245           dyn_cast<CXXUnresolvedConstructExpr>(E)) {
1246     Type = UnCtor->getTypeSourceInfo();
1247   } else if (const CXXTemporaryObjectExpr *Tmp =
1248                  dyn_cast<CXXTemporaryObjectExpr>(E)) {
1249     Type = Tmp->getTypeSourceInfo();
1250   }
1251 
1252   if (!Type)
1253     return cursor;
1254 
1255   CXTranslationUnit TU = getCursorTU(cursor);
1256   QualType Ty = Type->getType();
1257   TypeLoc TL = Type->getTypeLoc();
1258   SourceLocation Loc = TL.getBeginLoc();
1259 
1260   if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) {
1261     Ty = ElabT->getNamedType();
1262     ElaboratedTypeLoc ElabTL = TL.castAs<ElaboratedTypeLoc>();
1263     Loc = ElabTL.getNamedTypeLoc().getBeginLoc();
1264   }
1265 
1266   if (const TypedefType *Typedef = Ty->getAs<TypedefType>())
1267     return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU);
1268   if (const TagType *Tag = Ty->getAs<TagType>())
1269     return MakeCursorTypeRef(Tag->getDecl(), Loc, TU);
1270   if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>())
1271     return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU);
1272 
1273   return cursor;
1274 }
1275 
operator ==(CXCursor X,CXCursor Y)1276 bool cxcursor::operator==(CXCursor X, CXCursor Y) {
1277   return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] &&
1278          X.data[2] == Y.data[2];
1279 }
1280 
1281 // FIXME: Remove once we can model DeclGroups and their appropriate ranges
1282 // properly in the ASTs.
isFirstInDeclGroup(CXCursor C)1283 bool cxcursor::isFirstInDeclGroup(CXCursor C) {
1284   assert(clang_isDeclaration(C.kind));
1285   return ((uintptr_t)(C.data[1])) != 0;
1286 }
1287 
1288 //===----------------------------------------------------------------------===//
1289 // libclang CXCursor APIs
1290 //===----------------------------------------------------------------------===//
1291 
clang_Cursor_isNull(CXCursor cursor)1292 int clang_Cursor_isNull(CXCursor cursor) {
1293   return clang_equalCursors(cursor, clang_getNullCursor());
1294 }
1295 
clang_Cursor_getTranslationUnit(CXCursor cursor)1296 CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) {
1297   return getCursorTU(cursor);
1298 }
1299 
clang_Cursor_getNumArguments(CXCursor C)1300 int clang_Cursor_getNumArguments(CXCursor C) {
1301   if (clang_isDeclaration(C.kind)) {
1302     const Decl *D = cxcursor::getCursorDecl(C);
1303     if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D))
1304       return MD->param_size();
1305     if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D))
1306       return FD->param_size();
1307   }
1308 
1309   if (clang_isExpression(C.kind)) {
1310     const Expr *E = cxcursor::getCursorExpr(C);
1311     if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
1312       return CE->getNumArgs();
1313     }
1314     if (const CXXConstructExpr *CE = dyn_cast<CXXConstructExpr>(E)) {
1315       return CE->getNumArgs();
1316     }
1317   }
1318 
1319   return -1;
1320 }
1321 
clang_Cursor_getArgument(CXCursor C,unsigned i)1322 CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i) {
1323   if (clang_isDeclaration(C.kind)) {
1324     const Decl *D = cxcursor::getCursorDecl(C);
1325     if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) {
1326       if (i < MD->param_size())
1327         return cxcursor::MakeCXCursor(MD->parameters()[i],
1328                                       cxcursor::getCursorTU(C));
1329     } else if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
1330       if (i < FD->param_size())
1331         return cxcursor::MakeCXCursor(FD->parameters()[i],
1332                                       cxcursor::getCursorTU(C));
1333     }
1334   }
1335 
1336   if (clang_isExpression(C.kind)) {
1337     const Expr *E = cxcursor::getCursorExpr(C);
1338     if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
1339       if (i < CE->getNumArgs()) {
1340         return cxcursor::MakeCXCursor(CE->getArg(i), getCursorDecl(C),
1341                                       cxcursor::getCursorTU(C));
1342       }
1343     }
1344     if (const CXXConstructExpr *CE = dyn_cast<CXXConstructExpr>(E)) {
1345       if (i < CE->getNumArgs()) {
1346         return cxcursor::MakeCXCursor(CE->getArg(i), getCursorDecl(C),
1347                                       cxcursor::getCursorTU(C));
1348       }
1349     }
1350   }
1351 
1352   return clang_getNullCursor();
1353 }
1354 
clang_Cursor_getNumTemplateArguments(CXCursor C)1355 int clang_Cursor_getNumTemplateArguments(CXCursor C) {
1356   if (clang_getCursorKind(C) != CXCursor_FunctionDecl) {
1357     return -1;
1358   }
1359 
1360   const FunctionDecl *FD =
1361       llvm::dyn_cast_or_null<clang::FunctionDecl>(getCursorDecl(C));
1362   if (!FD) {
1363     return -1;
1364   }
1365 
1366   const FunctionTemplateSpecializationInfo *SpecInfo =
1367       FD->getTemplateSpecializationInfo();
1368   if (!SpecInfo) {
1369     return -1;
1370   }
1371 
1372   return SpecInfo->TemplateArguments->size();
1373 }
1374 
1375 enum CXGetTemplateArgumentStatus {
1376   /** The operation completed successfully */
1377   CXGetTemplateArgumentStatus_Success = 0,
1378 
1379   /** The specified cursor did not represent a FunctionDecl. */
1380   CXGetTemplateArgumentStatus_CursorNotFunctionDecl = -1,
1381 
1382   /** The specified cursor was not castable to a FunctionDecl. */
1383   CXGetTemplateArgumentStatus_BadFunctionDeclCast = -2,
1384 
1385   /** A NULL FunctionTemplateSpecializationInfo was retrieved. */
1386   CXGetTemplateArgumentStatus_NullTemplSpecInfo = -3,
1387 
1388   /** An invalid (OOB) argument index was specified */
1389   CXGetTemplateArgumentStatus_InvalidIndex = -4
1390 };
1391 
clang_Cursor_getTemplateArgument(CXCursor C,unsigned I,TemplateArgument * TA)1392 static int clang_Cursor_getTemplateArgument(CXCursor C, unsigned I,
1393                                             TemplateArgument *TA) {
1394   if (clang_getCursorKind(C) != CXCursor_FunctionDecl) {
1395     return CXGetTemplateArgumentStatus_CursorNotFunctionDecl;
1396   }
1397 
1398   const FunctionDecl *FD =
1399       llvm::dyn_cast_or_null<clang::FunctionDecl>(getCursorDecl(C));
1400   if (!FD) {
1401     return CXGetTemplateArgumentStatus_BadFunctionDeclCast;
1402   }
1403 
1404   const FunctionTemplateSpecializationInfo *SpecInfo =
1405       FD->getTemplateSpecializationInfo();
1406   if (!SpecInfo) {
1407     return CXGetTemplateArgumentStatus_NullTemplSpecInfo;
1408   }
1409 
1410   if (I >= SpecInfo->TemplateArguments->size()) {
1411     return CXGetTemplateArgumentStatus_InvalidIndex;
1412   }
1413 
1414   *TA = SpecInfo->TemplateArguments->get(I);
1415   return 0;
1416 }
1417 
clang_Cursor_getTemplateArgumentKind(CXCursor C,unsigned I)1418 enum CXTemplateArgumentKind clang_Cursor_getTemplateArgumentKind(CXCursor C,
1419                                                                  unsigned I) {
1420   TemplateArgument TA;
1421   if (clang_Cursor_getTemplateArgument(C, I, &TA)) {
1422     return CXTemplateArgumentKind_Invalid;
1423   }
1424 
1425   switch (TA.getKind()) {
1426   case TemplateArgument::Null:
1427     return CXTemplateArgumentKind_Null;
1428   case TemplateArgument::Type:
1429     return CXTemplateArgumentKind_Type;
1430   case TemplateArgument::Declaration:
1431     return CXTemplateArgumentKind_Declaration;
1432   case TemplateArgument::NullPtr:
1433     return CXTemplateArgumentKind_NullPtr;
1434   case TemplateArgument::Integral:
1435     return CXTemplateArgumentKind_Integral;
1436   case TemplateArgument::Template:
1437     return CXTemplateArgumentKind_Template;
1438   case TemplateArgument::TemplateExpansion:
1439     return CXTemplateArgumentKind_TemplateExpansion;
1440   case TemplateArgument::Expression:
1441     return CXTemplateArgumentKind_Expression;
1442   case TemplateArgument::Pack:
1443     return CXTemplateArgumentKind_Pack;
1444   }
1445 
1446   return CXTemplateArgumentKind_Invalid;
1447 }
1448 
clang_Cursor_getTemplateArgumentType(CXCursor C,unsigned I)1449 CXType clang_Cursor_getTemplateArgumentType(CXCursor C, unsigned I) {
1450   TemplateArgument TA;
1451   if (clang_Cursor_getTemplateArgument(C, I, &TA) !=
1452       CXGetTemplateArgumentStatus_Success) {
1453     return cxtype::MakeCXType(QualType(), getCursorTU(C));
1454   }
1455 
1456   if (TA.getKind() != TemplateArgument::Type) {
1457     return cxtype::MakeCXType(QualType(), getCursorTU(C));
1458   }
1459 
1460   return cxtype::MakeCXType(TA.getAsType(), getCursorTU(C));
1461 }
1462 
clang_Cursor_getTemplateArgumentValue(CXCursor C,unsigned I)1463 long long clang_Cursor_getTemplateArgumentValue(CXCursor C, unsigned I) {
1464   TemplateArgument TA;
1465   if (clang_Cursor_getTemplateArgument(C, I, &TA) !=
1466       CXGetTemplateArgumentStatus_Success) {
1467     assert(0 && "Unable to retrieve TemplateArgument");
1468     return 0;
1469   }
1470 
1471   if (TA.getKind() != TemplateArgument::Integral) {
1472     assert(0 && "Passed template argument is not Integral");
1473     return 0;
1474   }
1475 
1476   return TA.getAsIntegral().getSExtValue();
1477 }
1478 
clang_Cursor_getTemplateArgumentUnsignedValue(CXCursor C,unsigned I)1479 unsigned long long clang_Cursor_getTemplateArgumentUnsignedValue(CXCursor C,
1480                                                                  unsigned I) {
1481   TemplateArgument TA;
1482   if (clang_Cursor_getTemplateArgument(C, I, &TA) !=
1483       CXGetTemplateArgumentStatus_Success) {
1484     assert(0 && "Unable to retrieve TemplateArgument");
1485     return 0;
1486   }
1487 
1488   if (TA.getKind() != TemplateArgument::Integral) {
1489     assert(0 && "Passed template argument is not Integral");
1490     return 0;
1491   }
1492 
1493   return TA.getAsIntegral().getZExtValue();
1494 }
1495 
1496 //===----------------------------------------------------------------------===//
1497 // CXCursorSet.
1498 //===----------------------------------------------------------------------===//
1499 
1500 typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl;
1501 
packCXCursorSet(CXCursorSet_Impl * setImpl)1502 static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) {
1503   return (CXCursorSet)setImpl;
1504 }
unpackCXCursorSet(CXCursorSet set)1505 static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) {
1506   return (CXCursorSet_Impl *)set;
1507 }
1508 namespace llvm {
1509 template <> struct DenseMapInfo<CXCursor> {
1510 public:
getEmptyKeyllvm::DenseMapInfo1511   static inline CXCursor getEmptyKey() {
1512     return MakeCXCursorInvalid(CXCursor_InvalidFile);
1513   }
getTombstoneKeyllvm::DenseMapInfo1514   static inline CXCursor getTombstoneKey() {
1515     return MakeCXCursorInvalid(CXCursor_NoDeclFound);
1516   }
getHashValuellvm::DenseMapInfo1517   static inline unsigned getHashValue(const CXCursor &cursor) {
1518     return llvm::DenseMapInfo<std::pair<const void *, const void *>>::
1519         getHashValue(std::make_pair(cursor.data[0], cursor.data[1]));
1520   }
isEqualllvm::DenseMapInfo1521   static inline bool isEqual(const CXCursor &x, const CXCursor &y) {
1522     return x.kind == y.kind && x.data[0] == y.data[0] && x.data[1] == y.data[1];
1523   }
1524 };
1525 } // namespace llvm
1526 
clang_createCXCursorSet()1527 CXCursorSet clang_createCXCursorSet() {
1528   return packCXCursorSet(new CXCursorSet_Impl());
1529 }
1530 
clang_disposeCXCursorSet(CXCursorSet set)1531 void clang_disposeCXCursorSet(CXCursorSet set) {
1532   delete unpackCXCursorSet(set);
1533 }
1534 
clang_CXCursorSet_contains(CXCursorSet set,CXCursor cursor)1535 unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) {
1536   CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
1537   if (!setImpl)
1538     return 0;
1539   return setImpl->find(cursor) != setImpl->end();
1540 }
1541 
clang_CXCursorSet_insert(CXCursorSet set,CXCursor cursor)1542 unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) {
1543   // Do not insert invalid cursors into the set.
1544   if (cursor.kind >= CXCursor_FirstInvalid &&
1545       cursor.kind <= CXCursor_LastInvalid)
1546     return 1;
1547 
1548   CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
1549   if (!setImpl)
1550     return 1;
1551   unsigned &entry = (*setImpl)[cursor];
1552   unsigned flag = entry == 0 ? 1 : 0;
1553   entry = 1;
1554   return flag;
1555 }
1556 
clang_getCursorCompletionString(CXCursor cursor)1557 CXCompletionString clang_getCursorCompletionString(CXCursor cursor) {
1558   enum CXCursorKind kind = clang_getCursorKind(cursor);
1559   if (clang_isDeclaration(kind)) {
1560     const Decl *decl = getCursorDecl(cursor);
1561     if (const NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) {
1562       ASTUnit *unit = getCursorASTUnit(cursor);
1563       CodeCompletionResult Result(namedDecl, CCP_Declaration);
1564       CodeCompletionString *String = Result.CreateCodeCompletionString(
1565           unit->getASTContext(), unit->getPreprocessor(),
1566           CodeCompletionContext::CCC_Other,
1567           unit->getCodeCompletionTUInfo().getAllocator(),
1568           unit->getCodeCompletionTUInfo(), true);
1569       return String;
1570     }
1571   } else if (kind == CXCursor_MacroDefinition) {
1572     const MacroDefinitionRecord *definition = getCursorMacroDefinition(cursor);
1573     const IdentifierInfo *Macro = definition->getName();
1574     ASTUnit *unit = getCursorASTUnit(cursor);
1575     CodeCompletionResult Result(
1576         Macro,
1577         unit->getPreprocessor().getMacroDefinition(Macro).getMacroInfo());
1578     CodeCompletionString *String = Result.CreateCodeCompletionString(
1579         unit->getASTContext(), unit->getPreprocessor(),
1580         CodeCompletionContext::CCC_Other,
1581         unit->getCodeCompletionTUInfo().getAllocator(),
1582         unit->getCodeCompletionTUInfo(), false);
1583     return String;
1584   }
1585   return nullptr;
1586 }
1587 
1588 namespace {
1589 struct OverridenCursorsPool {
1590   typedef SmallVector<CXCursor, 2> CursorVec;
1591   std::vector<CursorVec *> AllCursors;
1592   std::vector<CursorVec *> AvailableCursors;
1593 
~OverridenCursorsPool__anonae9abf480111::OverridenCursorsPool1594   ~OverridenCursorsPool() {
1595     for (std::vector<CursorVec *>::iterator I = AllCursors.begin(),
1596                                             E = AllCursors.end();
1597          I != E; ++I) {
1598       delete *I;
1599     }
1600   }
1601 };
1602 } // namespace
1603 
createOverridenCXCursorsPool()1604 void *cxcursor::createOverridenCXCursorsPool() {
1605   return new OverridenCursorsPool();
1606 }
1607 
disposeOverridenCXCursorsPool(void * pool)1608 void cxcursor::disposeOverridenCXCursorsPool(void *pool) {
1609   delete static_cast<OverridenCursorsPool *>(pool);
1610 }
1611 
clang_getOverriddenCursors(CXCursor cursor,CXCursor ** overridden,unsigned * num_overridden)1612 void clang_getOverriddenCursors(CXCursor cursor, CXCursor **overridden,
1613                                 unsigned *num_overridden) {
1614   if (overridden)
1615     *overridden = nullptr;
1616   if (num_overridden)
1617     *num_overridden = 0;
1618 
1619   CXTranslationUnit TU = cxcursor::getCursorTU(cursor);
1620 
1621   if (!overridden || !num_overridden || !TU)
1622     return;
1623 
1624   if (!clang_isDeclaration(cursor.kind))
1625     return;
1626 
1627   OverridenCursorsPool &pool =
1628       *static_cast<OverridenCursorsPool *>(TU->OverridenCursorsPool);
1629 
1630   OverridenCursorsPool::CursorVec *Vec = nullptr;
1631 
1632   if (!pool.AvailableCursors.empty()) {
1633     Vec = pool.AvailableCursors.back();
1634     pool.AvailableCursors.pop_back();
1635   } else {
1636     Vec = new OverridenCursorsPool::CursorVec();
1637     pool.AllCursors.push_back(Vec);
1638   }
1639 
1640   // Clear out the vector, but don't free the memory contents.  This
1641   // reduces malloc() traffic.
1642   Vec->clear();
1643 
1644   // Use the first entry to contain a back reference to the vector.
1645   // This is a complete hack.
1646   CXCursor backRefCursor = MakeCXCursorInvalid(CXCursor_InvalidFile, TU);
1647   backRefCursor.data[0] = Vec;
1648   assert(cxcursor::getCursorTU(backRefCursor) == TU);
1649   Vec->push_back(backRefCursor);
1650 
1651   // Get the overridden cursors.
1652   cxcursor::getOverriddenCursors(cursor, *Vec);
1653 
1654   // Did we get any overridden cursors?  If not, return Vec to the pool
1655   // of available cursor vectors.
1656   if (Vec->size() == 1) {
1657     pool.AvailableCursors.push_back(Vec);
1658     return;
1659   }
1660 
1661   // Now tell the caller about the overridden cursors.
1662   assert(Vec->size() > 1);
1663   *overridden = &((*Vec)[1]);
1664   *num_overridden = Vec->size() - 1;
1665 }
1666 
clang_disposeOverriddenCursors(CXCursor * overridden)1667 void clang_disposeOverriddenCursors(CXCursor *overridden) {
1668   if (!overridden)
1669     return;
1670 
1671   // Use pointer arithmetic to get back the first faux entry
1672   // which has a back-reference to the TU and the vector.
1673   --overridden;
1674   OverridenCursorsPool::CursorVec *Vec =
1675       static_cast<OverridenCursorsPool::CursorVec *>(
1676           const_cast<void *>(overridden->data[0]));
1677   CXTranslationUnit TU = getCursorTU(*overridden);
1678 
1679   assert(Vec && TU);
1680 
1681   OverridenCursorsPool &pool =
1682       *static_cast<OverridenCursorsPool *>(TU->OverridenCursorsPool);
1683 
1684   pool.AvailableCursors.push_back(Vec);
1685 }
1686 
clang_Cursor_isDynamicCall(CXCursor C)1687 int clang_Cursor_isDynamicCall(CXCursor C) {
1688   const Expr *E = nullptr;
1689   if (clang_isExpression(C.kind))
1690     E = getCursorExpr(C);
1691   if (!E)
1692     return 0;
1693 
1694   if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E)) {
1695     if (MsgE->getReceiverKind() != ObjCMessageExpr::Instance)
1696       return false;
1697     if (auto *RecE = dyn_cast<ObjCMessageExpr>(
1698             MsgE->getInstanceReceiver()->IgnoreParenCasts())) {
1699       if (RecE->getMethodFamily() == OMF_alloc)
1700         return false;
1701     }
1702     return true;
1703   }
1704 
1705   if (auto *PropRefE = dyn_cast<ObjCPropertyRefExpr>(E)) {
1706     return !PropRefE->isSuperReceiver();
1707   }
1708 
1709   const MemberExpr *ME = nullptr;
1710   if (isa<MemberExpr>(E))
1711     ME = cast<MemberExpr>(E);
1712   else if (const CallExpr *CE = dyn_cast<CallExpr>(E))
1713     ME = dyn_cast_or_null<MemberExpr>(CE->getCallee());
1714 
1715   if (ME) {
1716     if (const CXXMethodDecl *MD =
1717             dyn_cast_or_null<CXXMethodDecl>(ME->getMemberDecl()))
1718       return MD->isVirtual() &&
1719              ME->performsVirtualDispatch(
1720                  cxcursor::getCursorContext(C).getLangOpts());
1721   }
1722 
1723   return 0;
1724 }
1725 
clang_Cursor_getReceiverType(CXCursor C)1726 CXType clang_Cursor_getReceiverType(CXCursor C) {
1727   CXTranslationUnit TU = cxcursor::getCursorTU(C);
1728   const Expr *E = nullptr;
1729   if (clang_isExpression(C.kind))
1730     E = getCursorExpr(C);
1731 
1732   if (const ObjCMessageExpr *MsgE = dyn_cast_or_null<ObjCMessageExpr>(E))
1733     return cxtype::MakeCXType(MsgE->getReceiverType(), TU);
1734 
1735   if (auto *PropRefE = dyn_cast<ObjCPropertyRefExpr>(E)) {
1736     return cxtype::MakeCXType(
1737         PropRefE->getReceiverType(cxcursor::getCursorContext(C)), TU);
1738   }
1739 
1740   const MemberExpr *ME = nullptr;
1741   if (isa<MemberExpr>(E))
1742     ME = cast<MemberExpr>(E);
1743   else if (const CallExpr *CE = dyn_cast<CallExpr>(E))
1744     ME = dyn_cast_or_null<MemberExpr>(CE->getCallee());
1745 
1746   if (ME) {
1747     if (isa_and_nonnull<CXXMethodDecl>(ME->getMemberDecl())) {
1748       auto receiverTy = ME->getBase()->IgnoreImpCasts()->getType();
1749       return cxtype::MakeCXType(receiverTy, TU);
1750     }
1751   }
1752 
1753   return cxtype::MakeCXType(QualType(), TU);
1754 }
1755