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 "CXType.h"
20 #include "clang-c/Index.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, { 0, 0, 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: break;
44 case attr::IBAction: return CXCursor_IBActionAttr;
45 case attr::IBOutlet: return CXCursor_IBOutletAttr;
46 case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr;
47 case attr::Final: return CXCursor_CXXFinalAttr;
48 case attr::Override: return CXCursor_CXXOverrideAttr;
49 case attr::Annotate: return CXCursor_AnnotateAttr;
50 case attr::AsmLabel: return CXCursor_AsmLabelAttr;
51 }
52
53 return CXCursor_UnexposedAttr;
54 }
55
MakeCXCursor(const Attr * A,const Decl * Parent,CXTranslationUnit TU)56 CXCursor cxcursor::MakeCXCursor(const Attr *A, const Decl *Parent,
57 CXTranslationUnit TU) {
58 assert(A && Parent && TU && "Invalid arguments!");
59 CXCursor C = { GetCursorKind(A), 0, { Parent, A, TU } };
60 return C;
61 }
62
MakeCXCursor(const Decl * D,CXTranslationUnit TU,SourceRange RegionOfInterest,bool FirstInDeclGroup)63 CXCursor cxcursor::MakeCXCursor(const Decl *D, CXTranslationUnit TU,
64 SourceRange RegionOfInterest,
65 bool FirstInDeclGroup) {
66 assert(D && TU && "Invalid arguments!");
67
68 CXCursorKind K = getCursorKindForDecl(D);
69
70 if (K == CXCursor_ObjCClassMethodDecl ||
71 K == CXCursor_ObjCInstanceMethodDecl) {
72 int SelectorIdIndex = -1;
73 // Check if cursor points to a selector id.
74 if (RegionOfInterest.isValid() &&
75 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
76 SmallVector<SourceLocation, 16> SelLocs;
77 cast<ObjCMethodDecl>(D)->getSelectorLocs(SelLocs);
78 SmallVector<SourceLocation, 16>::iterator
79 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin());
80 if (I != SelLocs.end())
81 SelectorIdIndex = I - SelLocs.begin();
82 }
83 CXCursor C = { K, SelectorIdIndex,
84 { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }};
85 return C;
86 }
87
88 CXCursor C = { K, 0, { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }};
89 return C;
90 }
91
MakeCXCursor(const Stmt * S,const Decl * Parent,CXTranslationUnit TU,SourceRange RegionOfInterest)92 CXCursor cxcursor::MakeCXCursor(const Stmt *S, const Decl *Parent,
93 CXTranslationUnit TU,
94 SourceRange RegionOfInterest) {
95 assert(S && TU && "Invalid arguments!");
96 CXCursorKind K = CXCursor_NotImplemented;
97
98 switch (S->getStmtClass()) {
99 case Stmt::NoStmtClass:
100 break;
101
102 case Stmt::CaseStmtClass:
103 K = CXCursor_CaseStmt;
104 break;
105
106 case Stmt::DefaultStmtClass:
107 K = CXCursor_DefaultStmt;
108 break;
109
110 case Stmt::IfStmtClass:
111 K = CXCursor_IfStmt;
112 break;
113
114 case Stmt::SwitchStmtClass:
115 K = CXCursor_SwitchStmt;
116 break;
117
118 case Stmt::WhileStmtClass:
119 K = CXCursor_WhileStmt;
120 break;
121
122 case Stmt::DoStmtClass:
123 K = CXCursor_DoStmt;
124 break;
125
126 case Stmt::ForStmtClass:
127 K = CXCursor_ForStmt;
128 break;
129
130 case Stmt::GotoStmtClass:
131 K = CXCursor_GotoStmt;
132 break;
133
134 case Stmt::IndirectGotoStmtClass:
135 K = CXCursor_IndirectGotoStmt;
136 break;
137
138 case Stmt::ContinueStmtClass:
139 K = CXCursor_ContinueStmt;
140 break;
141
142 case Stmt::BreakStmtClass:
143 K = CXCursor_BreakStmt;
144 break;
145
146 case Stmt::ReturnStmtClass:
147 K = CXCursor_ReturnStmt;
148 break;
149
150 case Stmt::GCCAsmStmtClass:
151 K = CXCursor_GCCAsmStmt;
152 break;
153
154 case Stmt::MSAsmStmtClass:
155 K = CXCursor_MSAsmStmt;
156 break;
157
158 case Stmt::ObjCAtTryStmtClass:
159 K = CXCursor_ObjCAtTryStmt;
160 break;
161
162 case Stmt::ObjCAtCatchStmtClass:
163 K = CXCursor_ObjCAtCatchStmt;
164 break;
165
166 case Stmt::ObjCAtFinallyStmtClass:
167 K = CXCursor_ObjCAtFinallyStmt;
168 break;
169
170 case Stmt::ObjCAtThrowStmtClass:
171 K = CXCursor_ObjCAtThrowStmt;
172 break;
173
174 case Stmt::ObjCAtSynchronizedStmtClass:
175 K = CXCursor_ObjCAtSynchronizedStmt;
176 break;
177
178 case Stmt::ObjCAutoreleasePoolStmtClass:
179 K = CXCursor_ObjCAutoreleasePoolStmt;
180 break;
181
182 case Stmt::ObjCForCollectionStmtClass:
183 K = CXCursor_ObjCForCollectionStmt;
184 break;
185
186 case Stmt::CXXCatchStmtClass:
187 K = CXCursor_CXXCatchStmt;
188 break;
189
190 case Stmt::CXXTryStmtClass:
191 K = CXCursor_CXXTryStmt;
192 break;
193
194 case Stmt::CXXForRangeStmtClass:
195 K = CXCursor_CXXForRangeStmt;
196 break;
197
198 case Stmt::SEHTryStmtClass:
199 K = CXCursor_SEHTryStmt;
200 break;
201
202 case Stmt::SEHExceptStmtClass:
203 K = CXCursor_SEHExceptStmt;
204 break;
205
206 case Stmt::SEHFinallyStmtClass:
207 K = CXCursor_SEHFinallyStmt;
208 break;
209
210 case Stmt::ArrayTypeTraitExprClass:
211 case Stmt::AsTypeExprClass:
212 case Stmt::AtomicExprClass:
213 case Stmt::BinaryConditionalOperatorClass:
214 case Stmt::BinaryTypeTraitExprClass:
215 case Stmt::TypeTraitExprClass:
216 case Stmt::CXXBindTemporaryExprClass:
217 case Stmt::CXXDefaultArgExprClass:
218 case Stmt::CXXScalarValueInitExprClass:
219 case Stmt::CXXUuidofExprClass:
220 case Stmt::ChooseExprClass:
221 case Stmt::DesignatedInitExprClass:
222 case Stmt::ExprWithCleanupsClass:
223 case Stmt::ExpressionTraitExprClass:
224 case Stmt::ExtVectorElementExprClass:
225 case Stmt::ImplicitCastExprClass:
226 case Stmt::ImplicitValueInitExprClass:
227 case Stmt::MaterializeTemporaryExprClass:
228 case Stmt::ObjCIndirectCopyRestoreExprClass:
229 case Stmt::OffsetOfExprClass:
230 case Stmt::ParenListExprClass:
231 case Stmt::PredefinedExprClass:
232 case Stmt::ShuffleVectorExprClass:
233 case Stmt::UnaryExprOrTypeTraitExprClass:
234 case Stmt::UnaryTypeTraitExprClass:
235 case Stmt::VAArgExprClass:
236 case Stmt::ObjCArrayLiteralClass:
237 case Stmt::ObjCDictionaryLiteralClass:
238 case Stmt::ObjCBoxedExprClass:
239 case Stmt::ObjCSubscriptRefExprClass:
240 K = CXCursor_UnexposedExpr;
241 break;
242
243 case Stmt::OpaqueValueExprClass:
244 if (Expr *Src = cast<OpaqueValueExpr>(S)->getSourceExpr())
245 return MakeCXCursor(Src, Parent, TU, RegionOfInterest);
246 K = CXCursor_UnexposedExpr;
247 break;
248
249 case Stmt::PseudoObjectExprClass:
250 return MakeCXCursor(cast<PseudoObjectExpr>(S)->getSyntacticForm(),
251 Parent, TU, RegionOfInterest);
252
253 case Stmt::CompoundStmtClass:
254 K = CXCursor_CompoundStmt;
255 break;
256
257 case Stmt::NullStmtClass:
258 K = CXCursor_NullStmt;
259 break;
260
261 case Stmt::LabelStmtClass:
262 K = CXCursor_LabelStmt;
263 break;
264
265 case Stmt::AttributedStmtClass:
266 K = CXCursor_UnexposedStmt;
267 break;
268
269 case Stmt::DeclStmtClass:
270 K = CXCursor_DeclStmt;
271 break;
272
273 case Stmt::IntegerLiteralClass:
274 K = CXCursor_IntegerLiteral;
275 break;
276
277 case Stmt::FloatingLiteralClass:
278 K = CXCursor_FloatingLiteral;
279 break;
280
281 case Stmt::ImaginaryLiteralClass:
282 K = CXCursor_ImaginaryLiteral;
283 break;
284
285 case Stmt::StringLiteralClass:
286 K = CXCursor_StringLiteral;
287 break;
288
289 case Stmt::CharacterLiteralClass:
290 K = CXCursor_CharacterLiteral;
291 break;
292
293 case Stmt::ParenExprClass:
294 K = CXCursor_ParenExpr;
295 break;
296
297 case Stmt::UnaryOperatorClass:
298 K = CXCursor_UnaryOperator;
299 break;
300
301 case Stmt::CXXNoexceptExprClass:
302 K = CXCursor_UnaryExpr;
303 break;
304
305 case Stmt::ArraySubscriptExprClass:
306 K = CXCursor_ArraySubscriptExpr;
307 break;
308
309 case Stmt::BinaryOperatorClass:
310 K = CXCursor_BinaryOperator;
311 break;
312
313 case Stmt::CompoundAssignOperatorClass:
314 K = CXCursor_CompoundAssignOperator;
315 break;
316
317 case Stmt::ConditionalOperatorClass:
318 K = CXCursor_ConditionalOperator;
319 break;
320
321 case Stmt::CStyleCastExprClass:
322 K = CXCursor_CStyleCastExpr;
323 break;
324
325 case Stmt::CompoundLiteralExprClass:
326 K = CXCursor_CompoundLiteralExpr;
327 break;
328
329 case Stmt::InitListExprClass:
330 K = CXCursor_InitListExpr;
331 break;
332
333 case Stmt::AddrLabelExprClass:
334 K = CXCursor_AddrLabelExpr;
335 break;
336
337 case Stmt::StmtExprClass:
338 K = CXCursor_StmtExpr;
339 break;
340
341 case Stmt::GenericSelectionExprClass:
342 K = CXCursor_GenericSelectionExpr;
343 break;
344
345 case Stmt::GNUNullExprClass:
346 K = CXCursor_GNUNullExpr;
347 break;
348
349 case Stmt::CXXStaticCastExprClass:
350 K = CXCursor_CXXStaticCastExpr;
351 break;
352
353 case Stmt::CXXDynamicCastExprClass:
354 K = CXCursor_CXXDynamicCastExpr;
355 break;
356
357 case Stmt::CXXReinterpretCastExprClass:
358 K = CXCursor_CXXReinterpretCastExpr;
359 break;
360
361 case Stmt::CXXConstCastExprClass:
362 K = CXCursor_CXXConstCastExpr;
363 break;
364
365 case Stmt::CXXFunctionalCastExprClass:
366 K = CXCursor_CXXFunctionalCastExpr;
367 break;
368
369 case Stmt::CXXTypeidExprClass:
370 K = CXCursor_CXXTypeidExpr;
371 break;
372
373 case Stmt::CXXBoolLiteralExprClass:
374 K = CXCursor_CXXBoolLiteralExpr;
375 break;
376
377 case Stmt::CXXNullPtrLiteralExprClass:
378 K = CXCursor_CXXNullPtrLiteralExpr;
379 break;
380
381 case Stmt::CXXThisExprClass:
382 K = CXCursor_CXXThisExpr;
383 break;
384
385 case Stmt::CXXThrowExprClass:
386 K = CXCursor_CXXThrowExpr;
387 break;
388
389 case Stmt::CXXNewExprClass:
390 K = CXCursor_CXXNewExpr;
391 break;
392
393 case Stmt::CXXDeleteExprClass:
394 K = CXCursor_CXXDeleteExpr;
395 break;
396
397 case Stmt::ObjCStringLiteralClass:
398 K = CXCursor_ObjCStringLiteral;
399 break;
400
401 case Stmt::ObjCEncodeExprClass:
402 K = CXCursor_ObjCEncodeExpr;
403 break;
404
405 case Stmt::ObjCSelectorExprClass:
406 K = CXCursor_ObjCSelectorExpr;
407 break;
408
409 case Stmt::ObjCProtocolExprClass:
410 K = CXCursor_ObjCProtocolExpr;
411 break;
412
413 case Stmt::ObjCBoolLiteralExprClass:
414 K = CXCursor_ObjCBoolLiteralExpr;
415 break;
416
417 case Stmt::ObjCBridgedCastExprClass:
418 K = CXCursor_ObjCBridgedCastExpr;
419 break;
420
421 case Stmt::BlockExprClass:
422 K = CXCursor_BlockExpr;
423 break;
424
425 case Stmt::PackExpansionExprClass:
426 K = CXCursor_PackExpansionExpr;
427 break;
428
429 case Stmt::SizeOfPackExprClass:
430 K = CXCursor_SizeOfPackExpr;
431 break;
432
433 case Stmt::DeclRefExprClass:
434 case Stmt::DependentScopeDeclRefExprClass:
435 case Stmt::SubstNonTypeTemplateParmExprClass:
436 case Stmt::SubstNonTypeTemplateParmPackExprClass:
437 case Stmt::FunctionParmPackExprClass:
438 case Stmt::UnresolvedLookupExprClass:
439 K = CXCursor_DeclRefExpr;
440 break;
441
442 case Stmt::CXXDependentScopeMemberExprClass:
443 case Stmt::CXXPseudoDestructorExprClass:
444 case Stmt::MemberExprClass:
445 case Stmt::ObjCIsaExprClass:
446 case Stmt::ObjCIvarRefExprClass:
447 case Stmt::ObjCPropertyRefExprClass:
448 case Stmt::UnresolvedMemberExprClass:
449 K = CXCursor_MemberRefExpr;
450 break;
451
452 case Stmt::CallExprClass:
453 case Stmt::CXXOperatorCallExprClass:
454 case Stmt::CXXMemberCallExprClass:
455 case Stmt::CUDAKernelCallExprClass:
456 case Stmt::CXXConstructExprClass:
457 case Stmt::CXXTemporaryObjectExprClass:
458 case Stmt::CXXUnresolvedConstructExprClass:
459 case Stmt::UserDefinedLiteralClass:
460 K = CXCursor_CallExpr;
461 break;
462
463 case Stmt::LambdaExprClass:
464 K = CXCursor_LambdaExpr;
465 break;
466
467 case Stmt::ObjCMessageExprClass: {
468 K = CXCursor_ObjCMessageExpr;
469 int SelectorIdIndex = -1;
470 // Check if cursor points to a selector id.
471 if (RegionOfInterest.isValid() &&
472 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
473 SmallVector<SourceLocation, 16> SelLocs;
474 cast<ObjCMessageExpr>(S)->getSelectorLocs(SelLocs);
475 SmallVector<SourceLocation, 16>::iterator
476 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin());
477 if (I != SelLocs.end())
478 SelectorIdIndex = I - SelLocs.begin();
479 }
480 CXCursor C = { K, 0, { Parent, S, TU } };
481 return getSelectorIdentifierCursor(SelectorIdIndex, C);
482 }
483
484 case Stmt::MSDependentExistsStmtClass:
485 K = CXCursor_UnexposedStmt;
486 break;
487 }
488
489 CXCursor C = { K, 0, { Parent, S, TU } };
490 return C;
491 }
492
MakeCursorObjCSuperClassRef(ObjCInterfaceDecl * Super,SourceLocation Loc,CXTranslationUnit TU)493 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super,
494 SourceLocation Loc,
495 CXTranslationUnit TU) {
496 assert(Super && TU && "Invalid arguments!");
497 void *RawLoc = Loc.getPtrEncoding();
498 CXCursor C = { CXCursor_ObjCSuperClassRef, 0, { Super, RawLoc, TU } };
499 return C;
500 }
501
502 std::pair<const ObjCInterfaceDecl *, SourceLocation>
getCursorObjCSuperClassRef(CXCursor C)503 cxcursor::getCursorObjCSuperClassRef(CXCursor C) {
504 assert(C.kind == CXCursor_ObjCSuperClassRef);
505 return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
506 SourceLocation::getFromPtrEncoding(C.data[1]));
507 }
508
MakeCursorObjCProtocolRef(const ObjCProtocolDecl * Proto,SourceLocation Loc,CXTranslationUnit TU)509 CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto,
510 SourceLocation Loc,
511 CXTranslationUnit TU) {
512 assert(Proto && TU && "Invalid arguments!");
513 void *RawLoc = Loc.getPtrEncoding();
514 CXCursor C = { CXCursor_ObjCProtocolRef, 0, { Proto, RawLoc, TU } };
515 return C;
516 }
517
518 std::pair<const ObjCProtocolDecl *, SourceLocation>
getCursorObjCProtocolRef(CXCursor C)519 cxcursor::getCursorObjCProtocolRef(CXCursor C) {
520 assert(C.kind == CXCursor_ObjCProtocolRef);
521 return std::make_pair(static_cast<const ObjCProtocolDecl *>(C.data[0]),
522 SourceLocation::getFromPtrEncoding(C.data[1]));
523 }
524
MakeCursorObjCClassRef(const ObjCInterfaceDecl * Class,SourceLocation Loc,CXTranslationUnit TU)525 CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class,
526 SourceLocation Loc,
527 CXTranslationUnit TU) {
528 // 'Class' can be null for invalid code.
529 if (!Class)
530 return MakeCXCursorInvalid(CXCursor_InvalidCode);
531 assert(TU && "Invalid arguments!");
532 void *RawLoc = Loc.getPtrEncoding();
533 CXCursor C = { CXCursor_ObjCClassRef, 0, { Class, RawLoc, TU } };
534 return C;
535 }
536
537 std::pair<const ObjCInterfaceDecl *, SourceLocation>
getCursorObjCClassRef(CXCursor C)538 cxcursor::getCursorObjCClassRef(CXCursor C) {
539 assert(C.kind == CXCursor_ObjCClassRef);
540 return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
541 SourceLocation::getFromPtrEncoding(C.data[1]));
542 }
543
MakeCursorTypeRef(const TypeDecl * Type,SourceLocation Loc,CXTranslationUnit TU)544 CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc,
545 CXTranslationUnit TU) {
546 assert(Type && TU && "Invalid arguments!");
547 void *RawLoc = Loc.getPtrEncoding();
548 CXCursor C = { CXCursor_TypeRef, 0, { Type, RawLoc, TU } };
549 return C;
550 }
551
552 std::pair<const TypeDecl *, SourceLocation>
getCursorTypeRef(CXCursor C)553 cxcursor::getCursorTypeRef(CXCursor C) {
554 assert(C.kind == CXCursor_TypeRef);
555 return std::make_pair(static_cast<const TypeDecl *>(C.data[0]),
556 SourceLocation::getFromPtrEncoding(C.data[1]));
557 }
558
MakeCursorTemplateRef(const TemplateDecl * Template,SourceLocation Loc,CXTranslationUnit TU)559 CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template,
560 SourceLocation Loc,
561 CXTranslationUnit TU) {
562 assert(Template && TU && "Invalid arguments!");
563 void *RawLoc = Loc.getPtrEncoding();
564 CXCursor C = { CXCursor_TemplateRef, 0, { Template, RawLoc, TU } };
565 return C;
566 }
567
568 std::pair<const TemplateDecl *, SourceLocation>
getCursorTemplateRef(CXCursor C)569 cxcursor::getCursorTemplateRef(CXCursor C) {
570 assert(C.kind == CXCursor_TemplateRef);
571 return std::make_pair(static_cast<const TemplateDecl *>(C.data[0]),
572 SourceLocation::getFromPtrEncoding(C.data[1]));
573 }
574
MakeCursorNamespaceRef(const NamedDecl * NS,SourceLocation Loc,CXTranslationUnit TU)575 CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS,
576 SourceLocation Loc,
577 CXTranslationUnit TU) {
578
579 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU &&
580 "Invalid arguments!");
581 void *RawLoc = Loc.getPtrEncoding();
582 CXCursor C = { CXCursor_NamespaceRef, 0, { NS, RawLoc, TU } };
583 return C;
584 }
585
586 std::pair<const NamedDecl *, SourceLocation>
getCursorNamespaceRef(CXCursor C)587 cxcursor::getCursorNamespaceRef(CXCursor C) {
588 assert(C.kind == CXCursor_NamespaceRef);
589 return std::make_pair(static_cast<const NamedDecl *>(C.data[0]),
590 SourceLocation::getFromPtrEncoding(C.data[1]));
591 }
592
MakeCursorVariableRef(const VarDecl * Var,SourceLocation Loc,CXTranslationUnit TU)593 CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc,
594 CXTranslationUnit TU) {
595
596 assert(Var && TU && "Invalid arguments!");
597 void *RawLoc = Loc.getPtrEncoding();
598 CXCursor C = { CXCursor_VariableRef, 0, { Var, RawLoc, TU } };
599 return C;
600 }
601
602 std::pair<const VarDecl *, SourceLocation>
getCursorVariableRef(CXCursor C)603 cxcursor::getCursorVariableRef(CXCursor C) {
604 assert(C.kind == CXCursor_VariableRef);
605 return std::make_pair(static_cast<const VarDecl *>(C.data[0]),
606 SourceLocation::getFromPtrEncoding(C.data[1]));
607 }
608
MakeCursorMemberRef(const FieldDecl * Field,SourceLocation Loc,CXTranslationUnit TU)609 CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field, SourceLocation Loc,
610 CXTranslationUnit TU) {
611
612 assert(Field && TU && "Invalid arguments!");
613 void *RawLoc = Loc.getPtrEncoding();
614 CXCursor C = { CXCursor_MemberRef, 0, { Field, RawLoc, TU } };
615 return C;
616 }
617
618 std::pair<const FieldDecl *, SourceLocation>
getCursorMemberRef(CXCursor C)619 cxcursor::getCursorMemberRef(CXCursor C) {
620 assert(C.kind == CXCursor_MemberRef);
621 return std::make_pair(static_cast<const FieldDecl *>(C.data[0]),
622 SourceLocation::getFromPtrEncoding(C.data[1]));
623 }
624
MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier * B,CXTranslationUnit TU)625 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B,
626 CXTranslationUnit TU){
627 CXCursor C = { CXCursor_CXXBaseSpecifier, 0, { B, 0, TU } };
628 return C;
629 }
630
getCursorCXXBaseSpecifier(CXCursor C)631 const CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) {
632 assert(C.kind == CXCursor_CXXBaseSpecifier);
633 return static_cast<const CXXBaseSpecifier*>(C.data[0]);
634 }
635
MakePreprocessingDirectiveCursor(SourceRange Range,CXTranslationUnit TU)636 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range,
637 CXTranslationUnit TU) {
638 CXCursor C = { CXCursor_PreprocessingDirective, 0,
639 { Range.getBegin().getPtrEncoding(),
640 Range.getEnd().getPtrEncoding(),
641 TU }
642 };
643 return C;
644 }
645
getCursorPreprocessingDirective(CXCursor C)646 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) {
647 assert(C.kind == CXCursor_PreprocessingDirective);
648 SourceRange Range(SourceLocation::getFromPtrEncoding(C.data[0]),
649 SourceLocation::getFromPtrEncoding(C.data[1]));
650 ASTUnit *TU = getCursorASTUnit(C);
651 return TU->mapRangeFromPreamble(Range);
652 }
653
MakeMacroDefinitionCursor(const MacroDefinition * MI,CXTranslationUnit TU)654 CXCursor cxcursor::MakeMacroDefinitionCursor(const MacroDefinition *MI,
655 CXTranslationUnit TU) {
656 CXCursor C = { CXCursor_MacroDefinition, 0, { MI, 0, TU } };
657 return C;
658 }
659
getCursorMacroDefinition(CXCursor C)660 const MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) {
661 assert(C.kind == CXCursor_MacroDefinition);
662 return static_cast<const MacroDefinition *>(C.data[0]);
663 }
664
MakeMacroExpansionCursor(MacroExpansion * MI,CXTranslationUnit TU)665 CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI,
666 CXTranslationUnit TU) {
667 CXCursor C = { CXCursor_MacroExpansion, 0, { MI, 0, TU } };
668 return C;
669 }
670
MakeMacroExpansionCursor(MacroDefinition * MI,SourceLocation Loc,CXTranslationUnit TU)671 CXCursor cxcursor::MakeMacroExpansionCursor(MacroDefinition *MI,
672 SourceLocation Loc,
673 CXTranslationUnit TU) {
674 assert(Loc.isValid());
675 CXCursor C = { CXCursor_MacroExpansion, 0, { MI, Loc.getPtrEncoding(), TU } };
676 return C;
677 }
678
getName() const679 const IdentifierInfo *cxcursor::MacroExpansionCursor::getName() const {
680 if (isPseudo())
681 return getAsMacroDefinition()->getName();
682 return getAsMacroExpansion()->getName();
683 }
getDefinition() const684 const MacroDefinition *cxcursor::MacroExpansionCursor::getDefinition() const {
685 if (isPseudo())
686 return getAsMacroDefinition();
687 return getAsMacroExpansion()->getDefinition();
688 }
getSourceRange() const689 SourceRange cxcursor::MacroExpansionCursor::getSourceRange() const {
690 if (isPseudo())
691 return getPseudoLoc();
692 return getAsMacroExpansion()->getSourceRange();
693 }
694
MakeInclusionDirectiveCursor(InclusionDirective * ID,CXTranslationUnit TU)695 CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID,
696 CXTranslationUnit TU) {
697 CXCursor C = { CXCursor_InclusionDirective, 0, { ID, 0, TU } };
698 return C;
699 }
700
getCursorInclusionDirective(CXCursor C)701 const InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) {
702 assert(C.kind == CXCursor_InclusionDirective);
703 return static_cast<const InclusionDirective *>(C.data[0]);
704 }
705
MakeCursorLabelRef(LabelStmt * Label,SourceLocation Loc,CXTranslationUnit TU)706 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc,
707 CXTranslationUnit TU) {
708
709 assert(Label && TU && "Invalid arguments!");
710 void *RawLoc = Loc.getPtrEncoding();
711 CXCursor C = { CXCursor_LabelRef, 0, { Label, RawLoc, TU } };
712 return C;
713 }
714
715 std::pair<const LabelStmt *, SourceLocation>
getCursorLabelRef(CXCursor C)716 cxcursor::getCursorLabelRef(CXCursor C) {
717 assert(C.kind == CXCursor_LabelRef);
718 return std::make_pair(static_cast<const LabelStmt *>(C.data[0]),
719 SourceLocation::getFromPtrEncoding(C.data[1]));
720 }
721
MakeCursorOverloadedDeclRef(const OverloadExpr * E,CXTranslationUnit TU)722 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const OverloadExpr *E,
723 CXTranslationUnit TU) {
724 assert(E && TU && "Invalid arguments!");
725 OverloadedDeclRefStorage Storage(E);
726 void *RawLoc = E->getNameLoc().getPtrEncoding();
727 CXCursor C = {
728 CXCursor_OverloadedDeclRef, 0,
729 { Storage.getOpaqueValue(), RawLoc, TU }
730 };
731 return C;
732 }
733
MakeCursorOverloadedDeclRef(const Decl * D,SourceLocation Loc,CXTranslationUnit TU)734 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const Decl *D,
735 SourceLocation Loc,
736 CXTranslationUnit TU) {
737 assert(D && TU && "Invalid arguments!");
738 void *RawLoc = Loc.getPtrEncoding();
739 OverloadedDeclRefStorage Storage(D);
740 CXCursor C = {
741 CXCursor_OverloadedDeclRef, 0,
742 { Storage.getOpaqueValue(), RawLoc, TU }
743 };
744 return C;
745 }
746
MakeCursorOverloadedDeclRef(TemplateName Name,SourceLocation Loc,CXTranslationUnit TU)747 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name,
748 SourceLocation Loc,
749 CXTranslationUnit TU) {
750 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!");
751 void *RawLoc = Loc.getPtrEncoding();
752 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate());
753 CXCursor C = {
754 CXCursor_OverloadedDeclRef, 0,
755 { Storage.getOpaqueValue(), RawLoc, TU }
756 };
757 return C;
758 }
759
760 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation>
getCursorOverloadedDeclRef(CXCursor C)761 cxcursor::getCursorOverloadedDeclRef(CXCursor C) {
762 assert(C.kind == CXCursor_OverloadedDeclRef);
763 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(
764 const_cast<void *>(C.data[0])),
765 SourceLocation::getFromPtrEncoding(C.data[1]));
766 }
767
getCursorDecl(CXCursor Cursor)768 const Decl *cxcursor::getCursorDecl(CXCursor Cursor) {
769 return static_cast<const Decl *>(Cursor.data[0]);
770 }
771
getCursorExpr(CXCursor Cursor)772 const Expr *cxcursor::getCursorExpr(CXCursor Cursor) {
773 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor));
774 }
775
getCursorStmt(CXCursor Cursor)776 const Stmt *cxcursor::getCursorStmt(CXCursor Cursor) {
777 if (Cursor.kind == CXCursor_ObjCSuperClassRef ||
778 Cursor.kind == CXCursor_ObjCProtocolRef ||
779 Cursor.kind == CXCursor_ObjCClassRef)
780 return 0;
781
782 return static_cast<const Stmt *>(Cursor.data[1]);
783 }
784
getCursorAttr(CXCursor Cursor)785 const Attr *cxcursor::getCursorAttr(CXCursor Cursor) {
786 return static_cast<const Attr *>(Cursor.data[1]);
787 }
788
getCursorParentDecl(CXCursor Cursor)789 const Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) {
790 return static_cast<const Decl *>(Cursor.data[0]);
791 }
792
getCursorContext(CXCursor Cursor)793 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) {
794 return getCursorASTUnit(Cursor)->getASTContext();
795 }
796
getCursorASTUnit(CXCursor Cursor)797 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) {
798 CXTranslationUnit TU = getCursorTU(Cursor);
799 if (!TU)
800 return 0;
801 return cxtu::getASTUnit(TU);
802 }
803
getCursorTU(CXCursor Cursor)804 CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) {
805 return static_cast<CXTranslationUnit>(const_cast<void*>(Cursor.data[2]));
806 }
807
getOverriddenCursors(CXCursor cursor,SmallVectorImpl<CXCursor> & overridden)808 void cxcursor::getOverriddenCursors(CXCursor cursor,
809 SmallVectorImpl<CXCursor> &overridden) {
810 assert(clang_isDeclaration(cursor.kind));
811 const NamedDecl *D = dyn_cast_or_null<NamedDecl>(getCursorDecl(cursor));
812 if (!D)
813 return;
814
815 CXTranslationUnit TU = getCursorTU(cursor);
816 SmallVector<const NamedDecl *, 8> OverDecls;
817 D->getASTContext().getOverriddenMethods(D, OverDecls);
818
819 for (SmallVector<const NamedDecl *, 8>::iterator
820 I = OverDecls.begin(), E = OverDecls.end(); I != E; ++I) {
821 overridden.push_back(MakeCXCursor(*I, TU));
822 }
823 }
824
825 std::pair<int, SourceLocation>
getSelectorIdentifierIndexAndLoc(CXCursor cursor)826 cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) {
827 if (cursor.kind == CXCursor_ObjCMessageExpr) {
828 if (cursor.xdata != -1)
829 return std::make_pair(cursor.xdata,
830 cast<ObjCMessageExpr>(getCursorExpr(cursor))
831 ->getSelectorLoc(cursor.xdata));
832 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
833 cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
834 if (cursor.xdata != -1)
835 return std::make_pair(cursor.xdata,
836 cast<ObjCMethodDecl>(getCursorDecl(cursor))
837 ->getSelectorLoc(cursor.xdata));
838 }
839
840 return std::make_pair(-1, SourceLocation());
841 }
842
getSelectorIdentifierCursor(int SelIdx,CXCursor cursor)843 CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) {
844 CXCursor newCursor = cursor;
845
846 if (cursor.kind == CXCursor_ObjCMessageExpr) {
847 if (SelIdx == -1 ||
848 unsigned(SelIdx) >= cast<ObjCMessageExpr>(getCursorExpr(cursor))
849 ->getNumSelectorLocs())
850 newCursor.xdata = -1;
851 else
852 newCursor.xdata = SelIdx;
853 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
854 cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
855 if (SelIdx == -1 ||
856 unsigned(SelIdx) >= cast<ObjCMethodDecl>(getCursorDecl(cursor))
857 ->getNumSelectorLocs())
858 newCursor.xdata = -1;
859 else
860 newCursor.xdata = SelIdx;
861 }
862
863 return newCursor;
864 }
865
getTypeRefCursor(CXCursor cursor)866 CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) {
867 if (cursor.kind != CXCursor_CallExpr)
868 return cursor;
869
870 if (cursor.xdata == 0)
871 return cursor;
872
873 const Expr *E = getCursorExpr(cursor);
874 TypeSourceInfo *Type = 0;
875 if (const CXXUnresolvedConstructExpr *
876 UnCtor = dyn_cast<CXXUnresolvedConstructExpr>(E)) {
877 Type = UnCtor->getTypeSourceInfo();
878 } else if (const CXXTemporaryObjectExpr *Tmp =
879 dyn_cast<CXXTemporaryObjectExpr>(E)){
880 Type = Tmp->getTypeSourceInfo();
881 }
882
883 if (!Type)
884 return cursor;
885
886 CXTranslationUnit TU = getCursorTU(cursor);
887 QualType Ty = Type->getType();
888 TypeLoc TL = Type->getTypeLoc();
889 SourceLocation Loc = TL.getBeginLoc();
890
891 if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) {
892 Ty = ElabT->getNamedType();
893 ElaboratedTypeLoc ElabTL = TL.castAs<ElaboratedTypeLoc>();
894 Loc = ElabTL.getNamedTypeLoc().getBeginLoc();
895 }
896
897 if (const TypedefType *Typedef = Ty->getAs<TypedefType>())
898 return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU);
899 if (const TagType *Tag = Ty->getAs<TagType>())
900 return MakeCursorTypeRef(Tag->getDecl(), Loc, TU);
901 if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>())
902 return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU);
903
904 return cursor;
905 }
906
operator ==(CXCursor X,CXCursor Y)907 bool cxcursor::operator==(CXCursor X, CXCursor Y) {
908 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] &&
909 X.data[2] == Y.data[2];
910 }
911
912 // FIXME: Remove once we can model DeclGroups and their appropriate ranges
913 // properly in the ASTs.
isFirstInDeclGroup(CXCursor C)914 bool cxcursor::isFirstInDeclGroup(CXCursor C) {
915 assert(clang_isDeclaration(C.kind));
916 return ((uintptr_t) (C.data[1])) != 0;
917 }
918
919 //===----------------------------------------------------------------------===//
920 // libclang CXCursor APIs
921 //===----------------------------------------------------------------------===//
922
923 extern "C" {
924
clang_Cursor_isNull(CXCursor cursor)925 int clang_Cursor_isNull(CXCursor cursor) {
926 return clang_equalCursors(cursor, clang_getNullCursor());
927 }
928
clang_Cursor_getTranslationUnit(CXCursor cursor)929 CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) {
930 return getCursorTU(cursor);
931 }
932
clang_Cursor_getNumArguments(CXCursor C)933 int clang_Cursor_getNumArguments(CXCursor C) {
934 if (clang_isDeclaration(C.kind)) {
935 const Decl *D = cxcursor::getCursorDecl(C);
936 if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D))
937 return MD->param_size();
938 if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D))
939 return FD->param_size();
940 }
941
942 return -1;
943 }
944
clang_Cursor_getArgument(CXCursor C,unsigned i)945 CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i) {
946 if (clang_isDeclaration(C.kind)) {
947 const Decl *D = cxcursor::getCursorDecl(C);
948 if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) {
949 if (i < MD->param_size())
950 return cxcursor::MakeCXCursor(MD->param_begin()[i],
951 cxcursor::getCursorTU(C));
952 } else if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
953 if (i < FD->param_size())
954 return cxcursor::MakeCXCursor(FD->param_begin()[i],
955 cxcursor::getCursorTU(C));
956 }
957 }
958
959 return clang_getNullCursor();
960 }
961
962 } // end: extern "C"
963
964 //===----------------------------------------------------------------------===//
965 // CXCursorSet.
966 //===----------------------------------------------------------------------===//
967
968 typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl;
969
packCXCursorSet(CXCursorSet_Impl * setImpl)970 static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) {
971 return (CXCursorSet) setImpl;
972 }
unpackCXCursorSet(CXCursorSet set)973 static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) {
974 return (CXCursorSet_Impl*) set;
975 }
976 namespace llvm {
977 template<> struct DenseMapInfo<CXCursor> {
978 public:
getEmptyKeyllvm::DenseMapInfo979 static inline CXCursor getEmptyKey() {
980 return MakeCXCursorInvalid(CXCursor_InvalidFile);
981 }
getTombstoneKeyllvm::DenseMapInfo982 static inline CXCursor getTombstoneKey() {
983 return MakeCXCursorInvalid(CXCursor_NoDeclFound);
984 }
getHashValuellvm::DenseMapInfo985 static inline unsigned getHashValue(const CXCursor &cursor) {
986 return llvm::DenseMapInfo<std::pair<const void *, const void *> >
987 ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1]));
988 }
isEqualllvm::DenseMapInfo989 static inline bool isEqual(const CXCursor &x, const CXCursor &y) {
990 return x.kind == y.kind &&
991 x.data[0] == y.data[0] &&
992 x.data[1] == y.data[1];
993 }
994 };
995 }
996
997 extern "C" {
clang_createCXCursorSet()998 CXCursorSet clang_createCXCursorSet() {
999 return packCXCursorSet(new CXCursorSet_Impl());
1000 }
1001
clang_disposeCXCursorSet(CXCursorSet set)1002 void clang_disposeCXCursorSet(CXCursorSet set) {
1003 delete unpackCXCursorSet(set);
1004 }
1005
clang_CXCursorSet_contains(CXCursorSet set,CXCursor cursor)1006 unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) {
1007 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
1008 if (!setImpl)
1009 return 0;
1010 return setImpl->find(cursor) == setImpl->end();
1011 }
1012
clang_CXCursorSet_insert(CXCursorSet set,CXCursor cursor)1013 unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) {
1014 // Do not insert invalid cursors into the set.
1015 if (cursor.kind >= CXCursor_FirstInvalid &&
1016 cursor.kind <= CXCursor_LastInvalid)
1017 return 1;
1018
1019 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
1020 if (!setImpl)
1021 return 1;
1022 unsigned &entry = (*setImpl)[cursor];
1023 unsigned flag = entry == 0 ? 1 : 0;
1024 entry = 1;
1025 return flag;
1026 }
1027
clang_getCursorCompletionString(CXCursor cursor)1028 CXCompletionString clang_getCursorCompletionString(CXCursor cursor) {
1029 enum CXCursorKind kind = clang_getCursorKind(cursor);
1030 if (clang_isDeclaration(kind)) {
1031 const Decl *decl = getCursorDecl(cursor);
1032 if (const NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) {
1033 ASTUnit *unit = getCursorASTUnit(cursor);
1034 CodeCompletionResult Result(namedDecl, CCP_Declaration);
1035 CodeCompletionString *String
1036 = Result.CreateCodeCompletionString(unit->getASTContext(),
1037 unit->getPreprocessor(),
1038 unit->getCodeCompletionTUInfo().getAllocator(),
1039 unit->getCodeCompletionTUInfo(),
1040 true);
1041 return String;
1042 }
1043 }
1044 else if (kind == CXCursor_MacroDefinition) {
1045 const MacroDefinition *definition = getCursorMacroDefinition(cursor);
1046 const IdentifierInfo *MacroInfo = definition->getName();
1047 ASTUnit *unit = getCursorASTUnit(cursor);
1048 CodeCompletionResult Result(MacroInfo);
1049 CodeCompletionString *String
1050 = Result.CreateCodeCompletionString(unit->getASTContext(),
1051 unit->getPreprocessor(),
1052 unit->getCodeCompletionTUInfo().getAllocator(),
1053 unit->getCodeCompletionTUInfo(),
1054 false);
1055 return String;
1056 }
1057 return NULL;
1058 }
1059 } // end: extern C.
1060
1061 namespace {
1062 struct OverridenCursorsPool {
1063 typedef SmallVector<CXCursor, 2> CursorVec;
1064 std::vector<CursorVec*> AllCursors;
1065 std::vector<CursorVec*> AvailableCursors;
1066
~OverridenCursorsPool__anonf26a2b600111::OverridenCursorsPool1067 ~OverridenCursorsPool() {
1068 for (std::vector<CursorVec*>::iterator I = AllCursors.begin(),
1069 E = AllCursors.end(); I != E; ++I) {
1070 delete *I;
1071 }
1072 }
1073 };
1074 }
1075
createOverridenCXCursorsPool()1076 void *cxcursor::createOverridenCXCursorsPool() {
1077 return new OverridenCursorsPool();
1078 }
1079
disposeOverridenCXCursorsPool(void * pool)1080 void cxcursor::disposeOverridenCXCursorsPool(void *pool) {
1081 delete static_cast<OverridenCursorsPool*>(pool);
1082 }
1083
1084 extern "C" {
clang_getOverriddenCursors(CXCursor cursor,CXCursor ** overridden,unsigned * num_overridden)1085 void clang_getOverriddenCursors(CXCursor cursor,
1086 CXCursor **overridden,
1087 unsigned *num_overridden) {
1088 if (overridden)
1089 *overridden = 0;
1090 if (num_overridden)
1091 *num_overridden = 0;
1092
1093 CXTranslationUnit TU = cxcursor::getCursorTU(cursor);
1094
1095 if (!overridden || !num_overridden || !TU)
1096 return;
1097
1098 if (!clang_isDeclaration(cursor.kind))
1099 return;
1100
1101 OverridenCursorsPool &pool =
1102 *static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool);
1103
1104 OverridenCursorsPool::CursorVec *Vec = 0;
1105
1106 if (!pool.AvailableCursors.empty()) {
1107 Vec = pool.AvailableCursors.back();
1108 pool.AvailableCursors.pop_back();
1109 }
1110 else {
1111 Vec = new OverridenCursorsPool::CursorVec();
1112 pool.AllCursors.push_back(Vec);
1113 }
1114
1115 // Clear out the vector, but don't free the memory contents. This
1116 // reduces malloc() traffic.
1117 Vec->clear();
1118
1119 // Use the first entry to contain a back reference to the vector.
1120 // This is a complete hack.
1121 CXCursor backRefCursor = MakeCXCursorInvalid(CXCursor_InvalidFile, TU);
1122 backRefCursor.data[0] = Vec;
1123 assert(cxcursor::getCursorTU(backRefCursor) == TU);
1124 Vec->push_back(backRefCursor);
1125
1126 // Get the overriden cursors.
1127 cxcursor::getOverriddenCursors(cursor, *Vec);
1128
1129 // Did we get any overriden cursors? If not, return Vec to the pool
1130 // of available cursor vectors.
1131 if (Vec->size() == 1) {
1132 pool.AvailableCursors.push_back(Vec);
1133 return;
1134 }
1135
1136 // Now tell the caller about the overriden cursors.
1137 assert(Vec->size() > 1);
1138 *overridden = &((*Vec)[1]);
1139 *num_overridden = Vec->size() - 1;
1140 }
1141
clang_disposeOverriddenCursors(CXCursor * overridden)1142 void clang_disposeOverriddenCursors(CXCursor *overridden) {
1143 if (!overridden)
1144 return;
1145
1146 // Use pointer arithmetic to get back the first faux entry
1147 // which has a back-reference to the TU and the vector.
1148 --overridden;
1149 OverridenCursorsPool::CursorVec *Vec =
1150 static_cast<OverridenCursorsPool::CursorVec *>(
1151 const_cast<void *>(overridden->data[0]));
1152 CXTranslationUnit TU = getCursorTU(*overridden);
1153
1154 assert(Vec && TU);
1155
1156 OverridenCursorsPool &pool =
1157 *static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool);
1158
1159 pool.AvailableCursors.push_back(Vec);
1160 }
1161
clang_Cursor_isDynamicCall(CXCursor C)1162 int clang_Cursor_isDynamicCall(CXCursor C) {
1163 const Expr *E = 0;
1164 if (clang_isExpression(C.kind))
1165 E = getCursorExpr(C);
1166 if (!E)
1167 return 0;
1168
1169 if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E))
1170 return MsgE->getReceiverKind() == ObjCMessageExpr::Instance;
1171
1172 const MemberExpr *ME = 0;
1173 if (isa<MemberExpr>(E))
1174 ME = cast<MemberExpr>(E);
1175 else if (const CallExpr *CE = dyn_cast<CallExpr>(E))
1176 ME = dyn_cast_or_null<MemberExpr>(CE->getCallee());
1177
1178 if (ME) {
1179 if (const CXXMethodDecl *
1180 MD = dyn_cast_or_null<CXXMethodDecl>(ME->getMemberDecl()))
1181 return MD->isVirtual() && !ME->hasQualifier();
1182 }
1183
1184 return 0;
1185 }
1186
clang_Cursor_getReceiverType(CXCursor C)1187 CXType clang_Cursor_getReceiverType(CXCursor C) {
1188 CXTranslationUnit TU = cxcursor::getCursorTU(C);
1189 const Expr *E = 0;
1190 if (clang_isExpression(C.kind))
1191 E = getCursorExpr(C);
1192
1193 if (const ObjCMessageExpr *MsgE = dyn_cast_or_null<ObjCMessageExpr>(E))
1194 return cxtype::MakeCXType(MsgE->getReceiverType(), TU);
1195
1196 return cxtype::MakeCXType(QualType(), TU);
1197 }
1198
1199 } // end: extern "C"
1200